[ { "path": ".circleci/config.yml", "content": "unit-config: &unit-config\n environment:\n COMPOSER_PREFER_LOWEST: 0\n steps:\n - checkout\n\n - run:\n name: Install latest composer\n command: |\n php -r \"copy('https://raw.githubusercontent.com/composer/getcomposer.org/master/web/installer', 'composer-setup.php');\"\n php composer-setup.php\n php -r \"unlink('composer-setup.php');\"\n mv composer.phar /usr/local/bin/composer\n\n - run:\n name: Write COMPOSER_PREFER_LOWEST to file\n command: echo \"$COMPOSER_PREFER_LOWEST\" > ~/COMPOSER_PREFER_LOWEST.txt\n\n # Download and cache dependencies\n - restore_cache:\n keys:\n - v1-composer-cache-{{ checksum \"~/COMPOSER_PREFER_LOWEST.txt\" }}-{{ checksum \"composer.json\" }}\n # Fall back to using the latest cache if no exact match is found.\n - v1-composer-cache-{{ checksum \"~/COMPOSER_PREFER_LOWEST.txt\" }}\n\n - run:\n name: Validate composer files\n command: composer validate --strict\n\n - run:\n name: Install PHP extensions\n command: |\n printf '\\n' | sudo pecl install redis\n sudo docker-php-ext-enable redis\n\n - run:\n name: Install composer packages\n command: |\n if [ $COMPOSER_PREFER_LOWEST -eq \"1\" ]; then\n composer update --no-ansi --no-progress --optimize-autoloader --no-interaction --no-plugins --no-scripts --prefer-dist --prefer-stable --prefer-lowest\n else\n composer update --no-ansi --no-progress --optimize-autoloader --no-interaction --no-plugins --no-scripts --prefer-dist --prefer-stable\n fi\n\n - save_cache:\n key: v1-composer-cache-{{ checksum \"~/COMPOSER_PREFER_LOWEST.txt\" }}-{{ checksum \"composer.json\" }}\n paths:\n - ./vendor\n\n - run:\n name: Wait for backing services to start\n command: dockerize -wait tcp://127.0.0.1:6379 -timeout 30s\n\n - run:\n name: Run PHP Code Sniffer\n command: ./vendor/bin/phpcs\n\n - run:\n name: Run tests\n command: ./vendor/bin/phpunit\n\nversion: 2.1\njobs:\n php74:\n <<: *unit-config\n docker:\n - image: circleci/php:7.4-cli-node\n - image: circleci/redis:5-alpine\n environment:\n COMPOSER_PREFER_LOWEST: 0\n\n php74-lowest:\n <<: *unit-config\n docker:\n - image: circleci/php:7.4-cli-node\n - image: circleci/redis:5-alpine\n environment:\n COMPOSER_PREFER_LOWEST: 1\n\n php73:\n <<: *unit-config\n docker:\n - image: circleci/php:7.3-cli-node\n - image: circleci/redis:5-alpine\n environment:\n COMPOSER_PREFER_LOWEST: 0\n\n php73-lowest:\n <<: *unit-config\n docker:\n - image: circleci/php:7.3-cli-node\n - image: circleci/redis:5-alpine\n environment:\n COMPOSER_PREFER_LOWEST: 1\n\n php72:\n <<: *unit-config\n docker:\n - image: circleci/php:7.2-cli-node\n - image: circleci/redis:5-alpine\n environment:\n COMPOSER_PREFER_LOWEST: 0\n\n php72-lowest:\n <<: *unit-config\n docker:\n - image: circleci/php:7.2-cli-node\n - image: circleci/redis:5-alpine\n environment:\n COMPOSER_PREFER_LOWEST: 1\n\nworkflows:\n version: 2\n units:\n jobs:\n - php74\n - php74-lowest\n - php73\n - php73-lowest\n - php72\n - php72-lowest\n" }, { "path": ".gitattributes", "content": "* text=auto\n/.circleci/ export-ignore\n/.github/ export-ignore\n/examples/ export-ignore\n/nginx/ export-ignore\n/php-fpm/ export-ignore\n/tests/ export-ignore\n.gitattributes export-ignore\n.gitignore export-ignore\ndocker-compose.yml export-ignore\nphpcs.xml.dist export-ignore\nphpunit.xml.dist export-ignore\n" }, { "path": ".gitignore", "content": "/vendor/\n*.iml\n/.idea/\ncomposer.lock\ncomposer.phar\n.phpunit.result.cache\n" }, { "path": "LICENSE", "content": " Apache License\n Version 2.0, January 2004\n http://www.apache.org/licenses/\n\n TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION\n\n 1. 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In no event and under no legal theory,\n whether in tort (including negligence), contract, or otherwise,\n unless required by applicable law (such as deliberate and grossly\n negligent acts) or agreed to in writing, shall any Contributor be\n liable to You for damages, including any direct, indirect, special,\n incidental, or consequential damages of any character arising as a\n result of this License or out of the use or inability to use the\n Work (including but not limited to damages for loss of goodwill,\n work stoppage, computer failure or malfunction, or any and all\n other commercial damages or losses), even if such Contributor\n has been advised of the possibility of such damages.\n\n 9. Accepting Warranty or Additional Liability. While redistributing\n the Work or Derivative Works thereof, You may choose to offer,\n and charge a fee for, acceptance of support, warranty, indemnity,\n or other liability obligations and/or rights consistent with this\n License. However, in accepting such obligations, You may act only\n on Your own behalf and on Your sole responsibility, not on behalf\n of any other Contributor, and only if You agree to indemnify,\n defend, and hold each Contributor harmless for any liability\n incurred by, or claims asserted against, such Contributor by reason\n of your accepting any such warranty or additional liability.\n\n END OF TERMS AND CONDITIONS\n\n APPENDIX: How to apply the Apache License to your work.\n\n To apply the Apache License to your work, attach the following\n boilerplate notice, with the fields enclosed by brackets \"[]\"\n replaced with your own identifying information. (Don't include\n the brackets!) The text should be enclosed in the appropriate\n comment syntax for the file format. We also recommend that a\n file or class name and description of purpose be included on the\n same \"printed page\" as the copyright notice for easier\n identification within third-party archives.\n\n Copyright 2016 Jimdo GmbH\n\n Licensed under the Apache License, Version 2.0 (the \"License\");\n you may not use this file except in compliance with the License.\n You may obtain a copy of the License at\n\n http://www.apache.org/licenses/LICENSE-2.0\n\n Unless required by applicable law or agreed to in writing, software\n distributed under the License is distributed on an \"AS IS\" BASIS,\n WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n See the License for the specific language governing permissions and\n limitations under the License.\n" }, { "path": "README.md", "content": "# A prometheus client library written in PHP\n\n[![CircleCI](https://circleci.com/gh/endclothing/prometheus_client_php/tree/master.svg?style=shield)](https://circleci.com/gh/endclothing/prometheus_client_php/tree/master)\n\nThis library uses Redis or APCu to do the client side aggregation.\nIf using Redis, we recommend to run a local Redis instance next to your PHP workers.\n\n## How does it work?\n\nUsually PHP worker processes don't share any state.\nYou can pick from three adapters.\nRedis, APC or an in memory adapter.\nWhile the first needs a separate binary running, the second just needs the [APC](https://pecl.php.net/package/APCU) extension to be installed. If you don't need persistent metrics between requests (e.g. a long running cron job or script) the in memory adapter might be suitable to use.\n\n## Installation\n\nAdd as [Composer](https://getcomposer.org/) dependency:\n\n```sh\ncomposer require endclothing/prometheus_client_php\n```\n\n## Usage\n\nA simple counter:\n```php\n\\Prometheus\\CollectorRegistry::getDefault()\n ->getOrRegisterCounter('', 'some_quick_counter', 'just a quick measurement')\n ->inc();\n```\n\nWrite some enhanced metrics:\n```php\n$registry = \\Prometheus\\CollectorRegistry::getDefault();\n\n$counter = $registry->getOrRegisterCounter('test', 'some_counter', 'it increases', ['type']);\n$counter->incBy(3, ['blue']);\n\n$gauge = $registry->getOrRegisterGauge('test', 'some_gauge', 'it sets', ['type']);\n$gauge->set(2.5, ['blue']);\n\n$histogram = $registry->getOrRegisterHistogram('test', 'some_histogram', 'it observes', ['type'], [0.1, 1, 2, 3.5, 4, 5, 6, 7, 8, 9]);\n$histogram->observe(3.5, ['blue']);\n```\n\nManually register and retrieve metrics (these steps are combined in the `getOrRegister...` methods):\n```php\n$registry = \\Prometheus\\CollectorRegistry::getDefault();\n\n$counterA = $registry->registerCounter('test', 'some_counter', 'it increases', ['type']);\n$counterA->incBy(3, ['blue']);\n\n// once a metric is registered, it can be retrieved using e.g. getCounter:\n$counterB = $registry->getCounter('test', 'some_counter')\n$counterB->incBy(2, ['red']);\n```\n\nExpose the metrics:\n```php\n$registry = \\Prometheus\\CollectorRegistry::getDefault();\n\n$renderer = new RenderTextFormat();\n$result = $renderer->render($registry->getMetricFamilySamples());\n\nheader('Content-type: ' . RenderTextFormat::MIME_TYPE);\necho $result;\n```\n\nChange the Redis options (the example shows the defaults):\n```php\n\\Prometheus\\Storage\\Redis::setDefaultOptions(\n [\n 'host' => '127.0.0.1',\n 'port' => 6379,\n 'password' => null,\n 'timeout' => 0.1, // in seconds\n 'read_timeout' => '10', // in seconds\n 'persistent_connections' => false\n ]\n);\n```\n\nUsing the InMemory storage:\n```php\n$registry = new CollectorRegistry(new InMemory());\n\n$counter = $registry->registerCounter('test', 'some_counter', 'it increases', ['type']);\n$counter->incBy(3, ['blue']);\n\n$renderer = new RenderTextFormat();\n$result = $renderer->render($registry->getMetricFamilySamples());\n```\n\n### Advanced Usage\n\n#### Advanced Histogram Usage\nOn passing an empty array for the bucket parameter on instantiation, a set of default buckets will be used instead.\nWhilst this is a good base for a typical web application, there is named constructor to assist in the generation of\nexponential / geometric buckets.\n\nEg:\n```\nHistogram::exponentialBuckets(0.05, 1.5, 10);\n```\n\nThis will start your buckets with a value of 1.5, grow them by a factor of 1.5 per bucket across a set of 10 buckets.\n\nAlso look at the [examples](examples).\n\n## Development\n\n### Dependencies\n\n* PHP ^7.3\n* PHP Redis extension\n* PHP APCu extension\n* [Composer](https://getcomposer.org/doc/00-intro.md#installation-linux-unix-osx)\n* Redis\n\nStart a Redis instance:\n```\ndocker-compose up Redis\n```\n\nRun the tests:\n```\ncomposer install\n\n# when Redis is not listening on localhost:\n# export REDIS_HOST=192.168.59.100\n./vendor/bin/phpunit\n```\n\n## Black box testing\n\nJust start the nginx, fpm & Redis setup with docker-compose:\n```\ndocker-compose up\n```\nPick the adapter you want to test.\n\n```\ndocker-compose run phpunit env ADAPTER=apc vendor/bin/phpunit tests/Test/\ndocker-compose run phpunit env ADAPTER=redis vendor/bin/phpunit tests/Test/\n```\n" }, { "path": "composer.json", "content": "{\n \"name\": \"endclothing/prometheus_client_php\",\n \"description\": \"Prometheus instrumentation library for PHP applications.\",\n \"type\": \"library\",\n \"license\": \"Apache-2.0\",\n \"authors\": [\n {\n \"name\": \"Daniel Noel-Davies\",\n \"email\": \"Daniel.Noel-Davies@endclothing.com\"\n }\n ],\n \"replace\": {\n \"jimdo/prometheus_client_php\": \"*\"\n },\n \"require\": {\n \"php\": \"^7.2\",\n \"ext-json\": \"*\",\n \"guzzlehttp/guzzle\": \"^6.3\",\n \"symfony/polyfill-apcu\": \"^1.6\"\n },\n \"require-dev\": {\n \"phpunit/phpunit\": \"^8.4\",\n \"squizlabs/php_codesniffer\": \"^3.5\"\n },\n \"suggest\": {\n \"ext-redis\": \"Required if using Redis.\",\n \"ext-apc\": \"Required if using APCu.\"\n },\n \"autoload\": {\n \"psr-4\": {\n \"Prometheus\\\\\": \"src/Prometheus/\"\n }\n },\n \"autoload-dev\": {\n \"psr-0\": {\n \"Test\\\\Prometheus\\\\\": \"tests/\"\n }\n },\n \"extra\": {\n \"branch-alias\": {\n \"dev-master\": \"1.0-dev\"\n }\n },\n \"config\": {\n \"sort-packages\": true\n },\n \"prefer-stable\": true\n}\n" }, { "path": "docker-compose.yml", "content": "nginx:\n build: nginx/\n links:\n - php-fpm\n ports:\n - 8080:80\n\nphp-fpm:\n build: php-fpm/\n volumes:\n - .:/var/www/html\n links:\n - redis\n - pushgateway\n environment:\n - REDIS_HOST=redis\n\nredis:\n image: redis\n ports:\n - 6379:6379\n\npushgateway:\n image: prom/pushgateway\n ports:\n - 9091:9091\n\nphpunit:\n build: php-fpm/\n volumes:\n - .:/var/www/html\n links:\n - redis\n - pushgateway\n - nginx\n environment:\n - REDIS_HOST=redis\n" }, { "path": "examples/flush_adapter.php", "content": " REDIS_HOST]);\n $redisAdapter->flushRedis();\n} elseif ($adapter === 'apc') {\n $apcAdapter = new Prometheus\\Storage\\APC();\n $apcAdapter->flushAPC();\n} elseif ($adapter === 'in-memory') {\n $inMemoryAdapter = new Prometheus\\Storage\\InMemory();\n $inMemoryAdapter->flushMemory();\n}\n" }, { "path": "examples/metrics.php", "content": " $_SERVER['REDIS_HOST'] ?? '127.0.0.1']);\n $adapter = new Prometheus\\Storage\\Redis();\n} elseif ($adapter === 'apc') {\n $adapter = new Prometheus\\Storage\\APC();\n} elseif ($adapter === 'in-memory') {\n $adapter = new Prometheus\\Storage\\InMemory();\n}\n$registry = new CollectorRegistry($adapter);\n$renderer = new RenderTextFormat();\n$result = $renderer->render($registry->getMetricFamilySamples());\n\nheader('Content-type: ' . RenderTextFormat::MIME_TYPE);\necho $result;\n" }, { "path": "examples/pushgateway.php", "content": " $_SERVER['REDIS_HOST'] ?? '127.0.0.1']);\n $adapter = new Prometheus\\Storage\\Redis();\n} elseif ($adapter === 'apc') {\n $adapter = new Prometheus\\Storage\\APC();\n} elseif ($adapter === 'in-memory') {\n $adapter = new Prometheus\\Storage\\InMemory();\n}\n\n$registry = new CollectorRegistry($adapter);\n\n$counter = $registry->registerCounter('test', 'some_counter', 'it increases', ['type']);\n$counter->incBy(6, ['blue']);\n\n$pushGateway = new PushGateway('192.168.59.100:9091');\n$pushGateway->push($registry, 'my_job', ['instance' => 'foo']);\n" }, { "path": "examples/some_counter.php", "content": " $_SERVER['REDIS_HOST'] ?? '127.0.0.1']);\n $adapter = new Prometheus\\Storage\\Redis();\n} elseif ($adapter === 'apc') {\n $adapter = new Prometheus\\Storage\\APC();\n} elseif ($adapter === 'in-memory') {\n $adapter = new Prometheus\\Storage\\InMemory();\n}\n$registry = new CollectorRegistry($adapter);\n\n$counter = $registry->registerCounter('test', 'some_counter', 'it increases', ['type']);\n$counter->incBy($_GET['c'], ['blue']);\n\necho \"OK\\n\";\n" }, { "path": "examples/some_gauge.php", "content": " $_SERVER['REDIS_HOST'] ?? '127.0.0.1']);\n $adapter = new Prometheus\\Storage\\Redis();\n} elseif ($adapter === 'apc') {\n $adapter = new Prometheus\\Storage\\APC();\n} elseif ($adapter === 'in-memory') {\n $adapter = new Prometheus\\Storage\\InMemory();\n}\n$registry = new CollectorRegistry($adapter);\n\n$gauge = $registry->registerGauge('test', 'some_gauge', 'it sets', ['type']);\n$gauge->set($_GET['c'], ['blue']);\n\necho \"OK\\n\";\n" }, { "path": "examples/some_histogram.php", "content": " $_SERVER['REDIS_HOST'] ?? '127.0.0.1']);\n $adapter = new Prometheus\\Storage\\Redis();\n} elseif ($adapter === 'apc') {\n $adapter = new Prometheus\\Storage\\APC();\n} elseif ($adapter === 'in-memory') {\n $adapter = new Prometheus\\Storage\\InMemory();\n}\n$registry = new CollectorRegistry($adapter);\n\n$histogram = $registry->registerHistogram('test', 'some_histogram', 'it observes', ['type'], [0.1, 1, 2, 3.5, 4, 5, 6, 7, 8, 9]);\n$histogram->observe($_GET['c'], ['blue']);\n\necho \"OK\\n\";\n" }, { "path": "nginx/Dockerfile", "content": "FROM nginx\n\nRUN rm /etc/nginx/conf.d/default.conf /etc/nginx/nginx.conf\nCOPY nginx.conf /etc/nginx/\nCOPY default.conf /etc/nginx/conf.d/\n" }, { "path": "nginx/default.conf", "content": "server {\n listen 80;\n\n root /var/www/html;\n\n error_log /var/log/nginx/localhost.error.log;\n access_log /var/log/nginx/localhost.access.log;\n\n location ~ ^/.+\\.php(/|$) {\n fastcgi_pass php-fpm:9000;\n fastcgi_split_path_info ^(.+\\.php)(/.*)$;\n include fastcgi_params;\n fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;\n fastcgi_param HTTPS off;\n }\n}\n" }, { "path": "nginx/nginx.conf", "content": "user nginx;\nworker_processes 1;\n\nerror_log /var/log/nginx/error.log warn;\npid /var/run/nginx.pid;\n\n\nevents {\n worker_connections 4096;\n}\n\n\nhttp {\n include /etc/nginx/mime.types;\n default_type application/octet-stream;\n\n log_format main '$remote_addr - $remote_user [$time_local] \"$request\" '\n '$status $body_bytes_sent \"$http_referer\" '\n '\"$http_user_agent\" \"$http_x_forwarded_for\"';\n\n access_log /var/log/nginx/access.log main;\n\n sendfile on;\n #tcp_nopush on;\n\n keepalive_timeout 65;\n\n #gzip on;\n\n include /etc/nginx/conf.d/*.conf;\n}\n" }, { "path": "php-fpm/Dockerfile", "content": "FROM php:5.6-fpm\n\nRUN pecl install redis-2.2.8 && docker-php-ext-enable redis\nRUN pecl install apcu-4.0.11 && docker-php-ext-enable apcu\n\nCOPY www.conf /usr/local/etc/php-fpm.d/\nCOPY docker-php-ext-apcu-cli.ini /usr/local/etc/php/conf.d/\n" }, { "path": "php-fpm/docker-php-ext-apcu-cli.ini", "content": "apc.enable_cli = On\n" }, { "path": "php-fpm/www.conf", "content": "[www]\nuser = www-data\ngroup = www-data\nlisten = 127.0.0.1:9000\npm = static\npm.max_children = 20\n" }, { "path": "phpcs.xml.dist", "content": "\n\n src/\n tests/\n examples/\n\n vendor/*\n\n \n\n \n\n" }, { "path": "phpunit.xml.dist", "content": "\n\n\n \n \n ./tests/Test/Prometheus\n \n \n\n \n \n ./src/Prometheus\n \n \n\n" }, { "path": "src/Prometheus/Collector.php", "content": "storageAdapter = $storageAdapter;\n $metricName = ($namespace ? $namespace . '_' : '') . $name;\n if (!preg_match(self::RE_METRIC_LABEL_NAME, $metricName)) {\n throw new InvalidArgumentException(\"Invalid metric name: '\" . $metricName . \"'\");\n }\n $this->name = $metricName;\n $this->help = $help;\n foreach ($labels as $label) {\n if (!preg_match(self::RE_METRIC_LABEL_NAME, $label)) {\n throw new InvalidArgumentException(\"Invalid label name: '\" . $label . \"'\");\n }\n }\n $this->labels = $labels;\n }\n\n /**\n * @return string\n */\n abstract public function getType();\n\n /**\n * @return string\n */\n public function getName(): string\n {\n return $this->name;\n }\n\n /**\n * @return array\n */\n public function getLabelNames(): array\n {\n return $this->labels;\n }\n\n /**\n * @return string\n */\n public function getHelp(): string\n {\n return $this->help;\n }\n\n /**\n * @return string\n */\n public function getKey(): string\n {\n return sha1($this->getName() . serialize($this->getLabelNames()));\n }\n\n /**\n * @param $labels\n */\n protected function assertLabelsAreDefinedCorrectly($labels): void\n {\n if (count($labels) != count($this->labels)) {\n throw new InvalidArgumentException(sprintf('Labels are not defined correctly: %s', print_r($labels, true)));\n }\n }\n}\n" }, { "path": "src/Prometheus/CollectorRegistry.php", "content": "storageAdapter = $redisAdapter;\n }\n\n /**\n * @return CollectorRegistry\n */\n public static function getDefault(): CollectorRegistry\n {\n if (!self::$defaultRegistry) {\n return self::$defaultRegistry = new static(new Redis());\n }\n return self::$defaultRegistry;\n }\n\n /**\n * @return MetricFamilySamples[]\n */\n public function getMetricFamilySamples(): array\n {\n return $this->storageAdapter->collect();\n }\n\n /**\n * @param string $namespace e.g. cms\n * @param string $name e.g. duration_seconds\n * @param string $help e.g. The duration something took in seconds.\n * @param array $labels e.g. ['controller', 'action']\n * @return Gauge\n * @throws MetricsRegistrationException\n */\n public function registerGauge($namespace, $name, $help, $labels = []): Gauge\n {\n $metricIdentifier = self::metricIdentifier($namespace, $name);\n if (isset($this->gauges[$metricIdentifier])) {\n throw new MetricsRegistrationException(\"Metric already registered\");\n }\n $this->gauges[$metricIdentifier] = new Gauge(\n $this->storageAdapter,\n $namespace,\n $name,\n $help,\n $labels\n );\n return $this->gauges[$metricIdentifier];\n }\n\n /**\n * @param string $namespace\n * @param string $name\n * @return Gauge\n * @throws MetricNotFoundException\n */\n public function getGauge($namespace, $name): Gauge\n {\n $metricIdentifier = self::metricIdentifier($namespace, $name);\n if (!isset($this->gauges[$metricIdentifier])) {\n throw new MetricNotFoundException(\"Metric not found:\" . $metricIdentifier);\n }\n return $this->gauges[$metricIdentifier];\n }\n\n /**\n * @param string $namespace e.g. cms\n * @param string $name e.g. duration_seconds\n * @param string $help e.g. The duration something took in seconds.\n * @param array $labels e.g. ['controller', 'action']\n * @return Gauge\n * @throws MetricsRegistrationException\n */\n public function getOrRegisterGauge($namespace, $name, $help, $labels = []): Gauge\n {\n try {\n $gauge = $this->getGauge($namespace, $name);\n } catch (MetricNotFoundException $e) {\n $gauge = $this->registerGauge($namespace, $name, $help, $labels);\n }\n return $gauge;\n }\n\n /**\n * @param string $namespace e.g. cms\n * @param string $name e.g. requests\n * @param string $help e.g. The number of requests made.\n * @param array $labels e.g. ['controller', 'action']\n * @return Counter\n * @throws MetricsRegistrationException\n */\n public function registerCounter($namespace, $name, $help, $labels = []): Counter\n {\n $metricIdentifier = self::metricIdentifier($namespace, $name);\n if (isset($this->counters[$metricIdentifier])) {\n throw new MetricsRegistrationException(\"Metric already registered\");\n }\n $this->counters[$metricIdentifier] = new Counter(\n $this->storageAdapter,\n $namespace,\n $name,\n $help,\n $labels\n );\n return $this->counters[self::metricIdentifier($namespace, $name)];\n }\n\n /**\n * @param string $namespace\n * @param string $name\n * @return Counter\n * @throws MetricNotFoundException\n */\n public function getCounter($namespace, $name): Counter\n {\n $metricIdentifier = self::metricIdentifier($namespace, $name);\n if (!isset($this->counters[$metricIdentifier])) {\n throw new MetricNotFoundException(\"Metric not found:\" . $metricIdentifier);\n }\n return $this->counters[self::metricIdentifier($namespace, $name)];\n }\n\n /**\n * @param string $namespace e.g. cms\n * @param string $name e.g. requests\n * @param string $help e.g. The number of requests made.\n * @param array $labels e.g. ['controller', 'action']\n * @return Counter\n * @throws MetricsRegistrationException\n */\n public function getOrRegisterCounter($namespace, $name, $help, $labels = []): Counter\n {\n try {\n $counter = $this->getCounter($namespace, $name);\n } catch (MetricNotFoundException $e) {\n $counter = $this->registerCounter($namespace, $name, $help, $labels);\n }\n return $counter;\n }\n\n /**\n * @param string $namespace e.g. cms\n * @param string $name e.g. duration_seconds\n * @param string $help e.g. A histogram of the duration in seconds.\n * @param array $labels e.g. ['controller', 'action']\n * @param array $buckets e.g. [100, 200, 300]\n * @return Histogram\n * @throws MetricsRegistrationException\n */\n public function registerHistogram($namespace, $name, $help, $labels = [], $buckets = null): Histogram\n {\n $metricIdentifier = self::metricIdentifier($namespace, $name);\n if (isset($this->histograms[$metricIdentifier])) {\n throw new MetricsRegistrationException(\"Metric already registered\");\n }\n $this->histograms[$metricIdentifier] = new Histogram(\n $this->storageAdapter,\n $namespace,\n $name,\n $help,\n $labels,\n $buckets\n );\n return $this->histograms[$metricIdentifier];\n }\n\n /**\n * @param string $namespace\n * @param string $name\n * @return Histogram\n * @throws MetricNotFoundException\n */\n public function getHistogram($namespace, $name): Histogram\n {\n $metricIdentifier = self::metricIdentifier($namespace, $name);\n if (!isset($this->histograms[$metricIdentifier])) {\n throw new MetricNotFoundException(\"Metric not found:\" . $metricIdentifier);\n }\n return $this->histograms[self::metricIdentifier($namespace, $name)];\n }\n\n /**\n * @param string $namespace e.g. cms\n * @param string $name e.g. duration_seconds\n * @param string $help e.g. A histogram of the duration in seconds.\n * @param array $labels e.g. ['controller', 'action']\n * @param array $buckets e.g. [100, 200, 300]\n * @return Histogram\n * @throws MetricsRegistrationException\n */\n public function getOrRegisterHistogram($namespace, $name, $help, $labels = [], $buckets = null): Histogram\n {\n try {\n $histogram = $this->getHistogram($namespace, $name);\n } catch (MetricNotFoundException $e) {\n $histogram = $this->registerHistogram($namespace, $name, $help, $labels, $buckets);\n }\n return $histogram;\n }\n\n /**\n * @param $namespace\n * @param $name\n * @return string\n */\n private static function metricIdentifier($namespace, $name): string\n {\n return $namespace . \":\" . $name;\n }\n}\n" }, { "path": "src/Prometheus/Counter.php", "content": "incBy(1, $labels);\n }\n\n /**\n * @param int $count e.g. 2\n * @param array $labels e.g. ['status', 'opcode']\n */\n public function incBy($count, array $labels = []): void\n {\n $this->assertLabelsAreDefinedCorrectly($labels);\n\n $this->storageAdapter->updateCounter(\n [\n 'name' => $this->getName(),\n 'help' => $this->getHelp(),\n 'type' => $this->getType(),\n 'labelNames' => $this->getLabelNames(),\n 'labelValues' => $labels,\n 'value' => $count,\n 'command' => Adapter::COMMAND_INCREMENT_INTEGER,\n ]\n );\n }\n}\n" }, { "path": "src/Prometheus/Exception/MetricNotFoundException.php", "content": "assertLabelsAreDefinedCorrectly($labels);\n\n $this->storageAdapter->updateGauge(\n [\n 'name' => $this->getName(),\n 'help' => $this->getHelp(),\n 'type' => $this->getType(),\n 'labelNames' => $this->getLabelNames(),\n 'labelValues' => $labels,\n 'value' => $value,\n 'command' => Adapter::COMMAND_SET,\n ]\n );\n }\n\n /**\n * @return string\n */\n public function getType(): string\n {\n return self::TYPE;\n }\n\n /**\n * @param array $labels\n */\n public function inc($labels = []): void\n {\n $this->incBy(1, $labels);\n }\n\n /**\n * @param $value\n * @param array $labels\n */\n public function incBy($value, array $labels = []): void\n {\n $this->assertLabelsAreDefinedCorrectly($labels);\n\n $this->storageAdapter->updateGauge(\n [\n 'name' => $this->getName(),\n 'help' => $this->getHelp(),\n 'type' => $this->getType(),\n 'labelNames' => $this->getLabelNames(),\n 'labelValues' => $labels,\n 'value' => $value,\n 'command' => Adapter::COMMAND_INCREMENT_FLOAT,\n ]\n );\n }\n\n /**\n * @param array $labels\n */\n public function dec($labels = []): void\n {\n $this->decBy(1, $labels);\n }\n\n /**\n * @param $value\n * @param array $labels\n */\n public function decBy($value, $labels = []): void\n {\n $this->incBy(-$value, $labels);\n }\n}\n" }, { "path": "src/Prometheus/Histogram.php", "content": "= $buckets[$i + 1]) {\n throw new InvalidArgumentException(\n \"Histogram buckets must be in increasing order: \" .\n $buckets[$i] . \" >= \" . $buckets[$i + 1]\n );\n }\n }\n if (in_array('le', $labels, true)) {\n throw new \\InvalidArgumentException(\"Histogram cannot have a label named 'le'.\");\n }\n $this->buckets = $buckets;\n }\n\n /**\n * List of default buckets suitable for typical web application latency metrics\n * @return array\n */\n public static function getDefaultBuckets(): array\n {\n return [\n 0.005, 0.01, 0.025, 0.05, 0.075, 0.1, 0.25, 0.5, 0.75, 1.0, 2.5, 5.0, 7.5, 10.0,\n ];\n }\n\n /**\n * @param float $start\n * @param float $growthFactor\n * @param int $numberOfBuckets\n * @return array\n */\n public static function exponentialBuckets(float $start, float $growthFactor, int $numberOfBuckets): array\n {\n if ($numberOfBuckets < 1) {\n throw new InvalidArgumentException('Number of buckets must be a positive integer');\n }\n\n if ($start <= 0) {\n throw new InvalidArgumentException('The starting position of a set of buckets must be a positive integer');\n }\n\n if ($growthFactor <= 1) {\n throw new InvalidArgumentException('The growth factor must greater than 1');\n }\n\n $buckets = [];\n\n for ($i = 0; $i < $numberOfBuckets; $i++) {\n $buckets[$i] = $start;\n $start *= $growthFactor;\n }\n\n return $buckets;\n }\n\n /**\n * @param double $value e.g. 123\n * @param array $labels e.g. ['status', 'opcode']\n */\n public function observe(float $value, array $labels = []): void\n {\n $this->assertLabelsAreDefinedCorrectly($labels);\n\n $this->storageAdapter->updateHistogram(\n [\n 'value' => $value,\n 'name' => $this->getName(),\n 'help' => $this->getHelp(),\n 'type' => $this->getType(),\n 'labelNames' => $this->getLabelNames(),\n 'labelValues' => $labels,\n 'buckets' => $this->buckets,\n ]\n );\n }\n\n /**\n * @return string\n */\n public function getType(): string\n {\n return self::TYPE;\n }\n}\n" }, { "path": "src/Prometheus/MetricFamilySamples.php", "content": "name = $data['name'];\n $this->type = $data['type'];\n $this->help = $data['help'];\n $this->labelNames = $data['labelNames'];\n foreach ($data['samples'] as $sampleData) {\n $this->samples[] = new Sample($sampleData);\n }\n }\n\n /**\n * @return string\n */\n public function getName(): string\n {\n return $this->name;\n }\n\n /**\n * @return string\n */\n public function getType(): string\n {\n return $this->type;\n }\n\n /**\n * @return string\n */\n public function getHelp(): string\n {\n return $this->help;\n }\n\n /**\n * @return Sample[]\n */\n public function getSamples(): array\n {\n return $this->samples;\n }\n\n /**\n * @return array\n */\n public function getLabelNames(): array\n {\n return $this->labelNames;\n }\n\n /**\n * @return bool\n */\n public function hasLabelNames(): bool\n {\n return !empty($this->labelNames);\n }\n}\n" }, { "path": "src/Prometheus/PushGateway.php", "content": "address = $address;\n $this->client = $client ?? new Client();\n }\n\n /**\n * Pushes all metrics in a Collector, replacing all those with the same job.\n * Uses HTTP PUT.\n * @param CollectorRegistry $collectorRegistry\n * @param string $job\n * @param array $groupingKey\n * @throws GuzzleException\n */\n public function push(CollectorRegistry $collectorRegistry, string $job, array $groupingKey = []): void\n {\n $this->doRequest($collectorRegistry, $job, $groupingKey, 'put');\n }\n\n /**\n * Pushes all metrics in a Collector, replacing only previously pushed metrics of the same name and job.\n * Uses HTTP POST.\n * @param CollectorRegistry $collectorRegistry\n * @param $job\n * @param $groupingKey\n * @throws GuzzleException\n */\n public function pushAdd(CollectorRegistry $collectorRegistry, string $job, array $groupingKey = []): void\n {\n $this->doRequest($collectorRegistry, $job, $groupingKey, 'post');\n }\n\n /**\n * Deletes metrics from the Push Gateway.\n * Uses HTTP POST.\n * @param string $job\n * @param array $groupingKey\n * @throws GuzzleException\n */\n public function delete(string $job, array $groupingKey = []): void\n {\n $this->doRequest(null, $job, $groupingKey, 'delete');\n }\n\n /**\n * @param CollectorRegistry $collectorRegistry\n * @param string $job\n * @param array $groupingKey\n * @param string $method\n * @throws GuzzleException\n */\n private function doRequest(CollectorRegistry $collectorRegistry, string $job, array $groupingKey, $method): void\n {\n $url = \"http://\" . $this->address . \"/metrics/job/\" . $job;\n if (!empty($groupingKey)) {\n foreach ($groupingKey as $label => $value) {\n $url .= \"/\" . $label . \"/\" . $value;\n }\n }\n\n $requestOptions = [\n 'headers' => [\n 'Content-Type' => RenderTextFormat::MIME_TYPE,\n ],\n 'connect_timeout' => 10,\n 'timeout' => 20,\n ];\n\n if ($method != 'delete') {\n $renderer = new RenderTextFormat();\n $requestOptions['body'] = $renderer->render($collectorRegistry->getMetricFamilySamples());\n }\n $response = $this->client->request($method, $url, $requestOptions);\n $statusCode = $response->getStatusCode();\n if (!in_array($statusCode, [200, 202])) {\n $msg = \"Unexpected status code \"\n . $statusCode\n . \" received from push gateway \"\n . $this->address . \": \" . $response->getBody();\n throw new RuntimeException($msg);\n }\n }\n}\n" }, { "path": "src/Prometheus/RenderTextFormat.php", "content": "getName(), $b->getName());\n });\n\n $lines = [];\n\n foreach ($metrics as $metric) {\n $lines[] = \"# HELP \" . $metric->getName() . \" {$metric->getHelp()}\";\n $lines[] = \"# TYPE \" . $metric->getName() . \" {$metric->getType()}\";\n foreach ($metric->getSamples() as $sample) {\n $lines[] = $this->renderSample($metric, $sample);\n }\n }\n return implode(\"\\n\", $lines) . \"\\n\";\n }\n\n /**\n * @param MetricFamilySamples $metric\n * @param Sample $sample\n * @return string\n */\n private function renderSample(MetricFamilySamples $metric, Sample $sample): string\n {\n $escapedLabels = [];\n\n $labelNames = $metric->getLabelNames();\n if ($metric->hasLabelNames() || $sample->hasLabelNames()) {\n $labels = array_combine(array_merge($labelNames, $sample->getLabelNames()), $sample->getLabelValues());\n foreach ($labels as $labelName => $labelValue) {\n $escapedLabels[] = $labelName . '=\"' . $this->escapeLabelValue($labelValue) . '\"';\n }\n return $sample->getName() . '{' . implode(',', $escapedLabels) . '} ' . $sample->getValue();\n }\n return $sample->getName() . ' ' . $sample->getValue();\n }\n\n /**\n * @param string $v\n * @return string\n */\n private function escapeLabelValue($v): string\n {\n $v = str_replace(\"\\\\\", \"\\\\\\\\\", $v);\n $v = str_replace(\"\\n\", \"\\\\n\", $v);\n $v = str_replace(\"\\\"\", \"\\\\\\\"\", $v);\n return $v;\n }\n}\n" }, { "path": "src/Prometheus/Sample.php", "content": "name = $data['name'];\n $this->labelNames = $data['labelNames'];\n $this->labelValues = $data['labelValues'];\n $this->value = $data['value'];\n }\n\n /**\n * @return string\n */\n public function getName(): string\n {\n return $this->name;\n }\n\n /**\n * @return array\n */\n public function getLabelNames(): array\n {\n return (array)$this->labelNames;\n }\n\n /**\n * @return array\n */\n public function getLabelValues(): array\n {\n return (array)$this->labelValues;\n }\n\n /**\n * @return int|double\n */\n public function getValue(): string\n {\n return (string) $this->value;\n }\n\n /**\n * @return bool\n */\n public function hasLabelNames(): bool\n {\n return !empty($this->labelNames);\n }\n}\n" }, { "path": "src/Prometheus/Storage/APC.php", "content": "collectHistograms();\n $metrics = array_merge($metrics, $this->collectGauges());\n $metrics = array_merge($metrics, $this->collectCounters());\n return $metrics;\n }\n\n /**\n * @param array $data\n */\n public function updateHistogram(array $data): void\n {\n // Initialize the sum\n $sumKey = $this->histogramBucketValueKey($data, 'sum');\n $new = apcu_add($sumKey, $this->toInteger(0));\n\n // If sum does not exist, assume a new histogram and store the metadata\n if ($new) {\n apcu_store($this->metaKey($data), json_encode($this->metaData($data)));\n }\n\n // Atomically increment the sum\n // Taken from https://github.com/prometheus/client_golang/blob/66058aac3a83021948e5fb12f1f408ff556b9037/prometheus/value.go#L91\n $done = false;\n while (!$done) {\n $old = apcu_fetch($sumKey);\n $done = apcu_cas($sumKey, $old, $this->toInteger($this->fromInteger($old) + $data['value']));\n }\n\n // Figure out in which bucket the observation belongs\n $bucketToIncrease = '+Inf';\n foreach ($data['buckets'] as $bucket) {\n if ($data['value'] <= $bucket) {\n $bucketToIncrease = $bucket;\n break;\n }\n }\n\n // Initialize and increment the bucket\n apcu_add($this->histogramBucketValueKey($data, $bucketToIncrease), 0);\n apcu_inc($this->histogramBucketValueKey($data, $bucketToIncrease));\n }\n\n /**\n * @param array $data\n */\n public function updateGauge(array $data): void\n {\n $valueKey = $this->valueKey($data);\n if ($data['command'] == Adapter::COMMAND_SET) {\n apcu_store($valueKey, $this->toInteger($data['value']));\n apcu_store($this->metaKey($data), json_encode($this->metaData($data)));\n } else {\n $new = apcu_add($valueKey, $this->toInteger(0));\n if ($new) {\n apcu_store($this->metaKey($data), json_encode($this->metaData($data)));\n }\n // Taken from https://github.com/prometheus/client_golang/blob/66058aac3a83021948e5fb12f1f408ff556b9037/prometheus/value.go#L91\n $done = false;\n while (!$done) {\n $old = apcu_fetch($valueKey);\n $done = apcu_cas($valueKey, $old, $this->toInteger($this->fromInteger($old) + $data['value']));\n }\n }\n }\n\n /**\n * @param array $data\n */\n public function updateCounter(array $data): void\n {\n $new = apcu_add($this->valueKey($data), 0);\n if ($new) {\n apcu_store($this->metaKey($data), json_encode($this->metaData($data)));\n }\n apcu_inc($this->valueKey($data), $data['value']);\n }\n\n /**\n * @return void\n */\n public function flushAPC(): void\n {\n apcu_clear_cache();\n }\n\n /**\n * @param array $data\n * @return string\n */\n private function metaKey(array $data): string\n {\n return implode(':', [self::PROMETHEUS_PREFIX, $data['type'], $data['name'], 'meta']);\n }\n\n /**\n * @param array $data\n * @return string\n */\n private function valueKey(array $data): string\n {\n return implode(':', [\n self::PROMETHEUS_PREFIX,\n $data['type'],\n $data['name'],\n $this->encodeLabelValues($data['labelValues']),\n 'value',\n ]);\n }\n\n /**\n * @param array $data\n * @return string\n */\n private function histogramBucketValueKey(array $data, $bucket): string\n {\n return implode(':', [\n self::PROMETHEUS_PREFIX,\n $data['type'],\n $data['name'],\n $this->encodeLabelValues($data['labelValues']),\n $bucket,\n 'value',\n ]);\n }\n\n /**\n * @param array $data\n * @return array\n */\n private function metaData(array $data): array\n {\n $metricsMetaData = $data;\n unset($metricsMetaData['value']);\n unset($metricsMetaData['command']);\n unset($metricsMetaData['labelValues']);\n return $metricsMetaData;\n }\n\n /**\n * @return array\n */\n private function collectCounters(): array\n {\n $counters = [];\n foreach (new APCUIterator('/^prom:counter:.*:meta/') as $counter) {\n $metaData = json_decode($counter['value'], true);\n $data = [\n 'name' => $metaData['name'],\n 'help' => $metaData['help'],\n 'type' => $metaData['type'],\n 'labelNames' => $metaData['labelNames'],\n ];\n foreach (new APCUIterator('/^prom:counter:' . $metaData['name'] . ':.*:value/') as $value) {\n $parts = explode(':', $value['key']);\n $labelValues = $parts[3];\n $data['samples'][] = [\n 'name' => $metaData['name'],\n 'labelNames' => [],\n 'labelValues' => $this->decodeLabelValues($labelValues),\n 'value' => $value['value'],\n ];\n }\n $this->sortSamples($data['samples']);\n $counters[] = new MetricFamilySamples($data);\n }\n return $counters;\n }\n\n /**\n * @return array\n */\n private function collectGauges(): array\n {\n $gauges = [];\n foreach (new APCUIterator('/^prom:gauge:.*:meta/') as $gauge) {\n $metaData = json_decode($gauge['value'], true);\n $data = [\n 'name' => $metaData['name'],\n 'help' => $metaData['help'],\n 'type' => $metaData['type'],\n 'labelNames' => $metaData['labelNames'],\n ];\n foreach (new APCUIterator('/^prom:gauge:' . $metaData['name'] . ':.*:value/') as $value) {\n $parts = explode(':', $value['key']);\n $labelValues = $parts[3];\n $data['samples'][] = [\n 'name' => $metaData['name'],\n 'labelNames' => [],\n 'labelValues' => $this->decodeLabelValues($labelValues),\n 'value' => $this->fromInteger($value['value']),\n ];\n }\n\n $this->sortSamples($data['samples']);\n $gauges[] = new MetricFamilySamples($data);\n }\n return $gauges;\n }\n\n /**\n * @return array\n */\n private function collectHistograms(): array\n {\n $histograms = [];\n foreach (new APCUIterator('/^prom:histogram:.*:meta/') as $histogram) {\n $metaData = json_decode($histogram['value'], true);\n $data = [\n 'name' => $metaData['name'],\n 'help' => $metaData['help'],\n 'type' => $metaData['type'],\n 'labelNames' => $metaData['labelNames'],\n 'buckets' => $metaData['buckets'],\n ];\n\n // Add the Inf bucket so we can compute it later on\n $data['buckets'][] = '+Inf';\n\n $histogramBuckets = [];\n foreach (new APCUIterator('/^prom:histogram:' . $metaData['name'] . ':.*:value/') as $value) {\n $parts = explode(':', $value['key']);\n $labelValues = $parts[3];\n $bucket = $parts[4];\n // Key by labelValues\n $histogramBuckets[$labelValues][$bucket] = $value['value'];\n }\n\n // Compute all buckets\n $labels = array_keys($histogramBuckets);\n sort($labels);\n foreach ($labels as $labelValues) {\n $acc = 0;\n $decodedLabelValues = $this->decodeLabelValues($labelValues);\n foreach ($data['buckets'] as $bucket) {\n $bucket = (string)$bucket;\n if (!isset($histogramBuckets[$labelValues][$bucket])) {\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => array_merge($decodedLabelValues, [$bucket]),\n 'value' => $acc,\n ];\n } else {\n $acc += $histogramBuckets[$labelValues][$bucket];\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_' . 'bucket',\n 'labelNames' => ['le'],\n 'labelValues' => array_merge($decodedLabelValues, [$bucket]),\n 'value' => $acc,\n ];\n }\n }\n\n // Add the count\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_count',\n 'labelNames' => [],\n 'labelValues' => $decodedLabelValues,\n 'value' => $acc,\n ];\n\n // Add the sum\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_sum',\n 'labelNames' => [],\n 'labelValues' => $decodedLabelValues,\n 'value' => $this->fromInteger($histogramBuckets[$labelValues]['sum']),\n ];\n }\n $histograms[] = new MetricFamilySamples($data);\n }\n return $histograms;\n }\n\n /**\n * @param mixed $val\n * @return int\n */\n private function toInteger($val): int\n {\n return unpack('Q', pack('d', $val))[1];\n }\n\n /**\n * @param mixed $val\n * @return float\n */\n private function fromInteger($val): float\n {\n return unpack('d', pack('Q', $val))[1];\n }\n\n /**\n * @param array $samples\n */\n private function sortSamples(array &$samples): void\n {\n usort($samples, function ($a, $b) {\n return strcmp(implode(\"\", $a['labelValues']), implode(\"\", $b['labelValues']));\n });\n }\n\n /**\n * @param array $values\n * @return string\n * @throws RuntimeException\n */\n private function encodeLabelValues(array $values): string\n {\n $json = json_encode($values);\n if (false === $json) {\n throw new RuntimeException(json_last_error_msg());\n }\n return base64_encode($json);\n }\n\n /**\n * @param string $values\n * @return array\n * @throws RuntimeException\n */\n private function decodeLabelValues($values): array\n {\n $json = base64_decode($values, true);\n if (false === $json) {\n throw new RuntimeException('Cannot base64 decode label values');\n }\n $decodedValues = json_decode($json, true);\n if (false === $decodedValues) {\n throw new RuntimeException(json_last_error_msg());\n }\n return $decodedValues;\n }\n}\n" }, { "path": "src/Prometheus/Storage/Adapter.php", "content": "internalCollect($this->counters);\n $metrics = array_merge($metrics, $this->internalCollect($this->gauges));\n $metrics = array_merge($metrics, $this->collectHistograms());\n return $metrics;\n }\n\n public function flushMemory(): void\n {\n $this->counters = [];\n $this->gauges = [];\n $this->histograms = [];\n }\n\n /**\n * @return array\n */\n private function collectHistograms(): array\n {\n $histograms = [];\n foreach ($this->histograms as $histogram) {\n $metaData = $histogram['meta'];\n $data = [\n 'name' => $metaData['name'],\n 'help' => $metaData['help'],\n 'type' => $metaData['type'],\n 'labelNames' => $metaData['labelNames'],\n 'buckets' => $metaData['buckets'],\n ];\n\n // Add the Inf bucket so we can compute it later on\n $data['buckets'][] = '+Inf';\n\n $histogramBuckets = [];\n foreach ($histogram['samples'] as $key => $value) {\n $parts = explode(':', $key);\n $labelValues = $parts[2];\n $bucket = $parts[3];\n // Key by labelValues\n $histogramBuckets[$labelValues][$bucket] = $value;\n }\n\n // Compute all buckets\n $labels = array_keys($histogramBuckets);\n sort($labels);\n foreach ($labels as $labelValues) {\n $acc = 0;\n $decodedLabelValues = $this->decodeLabelValues($labelValues);\n foreach ($data['buckets'] as $bucket) {\n $bucket = (string)$bucket;\n if (!isset($histogramBuckets[$labelValues][$bucket])) {\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => array_merge($decodedLabelValues, [$bucket]),\n 'value' => $acc,\n ];\n } else {\n $acc += $histogramBuckets[$labelValues][$bucket];\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_' . 'bucket',\n 'labelNames' => ['le'],\n 'labelValues' => array_merge($decodedLabelValues, [$bucket]),\n 'value' => $acc,\n ];\n }\n }\n\n // Add the count\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_count',\n 'labelNames' => [],\n 'labelValues' => $decodedLabelValues,\n 'value' => $acc,\n ];\n\n // Add the sum\n $data['samples'][] = [\n 'name' => $metaData['name'] . '_sum',\n 'labelNames' => [],\n 'labelValues' => $decodedLabelValues,\n 'value' => $histogramBuckets[$labelValues]['sum'],\n ];\n }\n $histograms[] = new MetricFamilySamples($data);\n }\n return $histograms;\n }\n\n /**\n * @param array $metrics\n * @return array\n */\n private function internalCollect(array $metrics): array\n {\n $result = [];\n foreach ($metrics as $metric) {\n $metaData = $metric['meta'];\n $data = [\n 'name' => $metaData['name'],\n 'help' => $metaData['help'],\n 'type' => $metaData['type'],\n 'labelNames' => $metaData['labelNames'],\n ];\n foreach ($metric['samples'] as $key => $value) {\n $parts = explode(':', $key);\n $labelValues = $parts[2];\n $data['samples'][] = [\n 'name' => $metaData['name'],\n 'labelNames' => [],\n 'labelValues' => $this->decodeLabelValues($labelValues),\n 'value' => $value,\n ];\n }\n $this->sortSamples($data['samples']);\n $result[] = new MetricFamilySamples($data);\n }\n return $result;\n }\n\n /**\n * @param array $data\n * @return void\n */\n public function updateHistogram(array $data): void\n {\n // Initialize the sum\n $metaKey = $this->metaKey($data);\n if (array_key_exists($metaKey, $this->histograms) === false) {\n $this->histograms[$metaKey] = [\n 'meta' => $this->metaData($data),\n 'samples' => [],\n ];\n }\n $sumKey = $this->histogramBucketValueKey($data, 'sum');\n if (array_key_exists($sumKey, $this->histograms[$metaKey]['samples']) === false) {\n $this->histograms[$metaKey]['samples'][$sumKey] = 0;\n }\n\n $this->histograms[$metaKey]['samples'][$sumKey] += $data['value'];\n\n\n $bucketToIncrease = '+Inf';\n foreach ($data['buckets'] as $bucket) {\n if ($data['value'] <= $bucket) {\n $bucketToIncrease = $bucket;\n break;\n }\n }\n\n $bucketKey = $this->histogramBucketValueKey($data, $bucketToIncrease);\n if (array_key_exists($bucketKey, $this->histograms[$metaKey]['samples']) === false) {\n $this->histograms[$metaKey]['samples'][$bucketKey] = 0;\n }\n $this->histograms[$metaKey]['samples'][$bucketKey] += 1;\n }\n\n /**\n * @param array $data\n */\n public function updateGauge(array $data): void\n {\n $metaKey = $this->metaKey($data);\n $valueKey = $this->valueKey($data);\n if (array_key_exists($metaKey, $this->gauges) === false) {\n $this->gauges[$metaKey] = [\n 'meta' => $this->metaData($data),\n 'samples' => [],\n ];\n }\n if (array_key_exists($valueKey, $this->gauges[$metaKey]['samples']) === false) {\n $this->gauges[$metaKey]['samples'][$valueKey] = 0;\n }\n if ($data['command'] === Adapter::COMMAND_SET) {\n $this->gauges[$metaKey]['samples'][$valueKey] = $data['value'];\n } else {\n $this->gauges[$metaKey]['samples'][$valueKey] += $data['value'];\n }\n }\n\n /**\n * @param array $data\n */\n public function updateCounter(array $data): void\n {\n $metaKey = $this->metaKey($data);\n $valueKey = $this->valueKey($data);\n if (array_key_exists($metaKey, $this->counters) === false) {\n $this->counters[$metaKey] = [\n 'meta' => $this->metaData($data),\n 'samples' => [],\n ];\n }\n if (array_key_exists($valueKey, $this->counters[$metaKey]['samples']) === false) {\n $this->counters[$metaKey]['samples'][$valueKey] = 0;\n }\n if ($data['command'] === Adapter::COMMAND_SET) {\n $this->counters[$metaKey]['samples'][$valueKey] = 0;\n } else {\n $this->counters[$metaKey]['samples'][$valueKey] += $data['value'];\n }\n }\n\n /**\n * @param array $data\n * @param string $bucket\n * @return string\n */\n private function histogramBucketValueKey(array $data, $bucket): string\n {\n return implode(':', [\n $data['type'],\n $data['name'],\n $this->encodeLabelValues($data['labelValues']),\n $bucket,\n ]);\n }\n\n /**\n * @param array $data\n *\n * @return string\n */\n private function metaKey(array $data): string\n {\n return implode(':', [\n $data['type'],\n $data['name'],\n 'meta'\n ]);\n }\n\n /**\n * @param array $data\n *\n * @return string\n */\n private function valueKey(array $data): string\n {\n return implode(':', [\n $data['type'],\n $data['name'],\n $this->encodeLabelValues($data['labelValues']),\n 'value'\n ]);\n }\n\n /**\n * @param array $data\n *\n * @return array\n */\n private function metaData(array $data): array\n {\n $metricsMetaData = $data;\n unset($metricsMetaData['value']);\n unset($metricsMetaData['command']);\n unset($metricsMetaData['labelValues']);\n return $metricsMetaData;\n }\n\n /**\n * @param array $samples\n */\n private function sortSamples(array &$samples): void\n {\n usort($samples, function ($a, $b) {\n return strcmp(implode(\"\", $a['labelValues']), implode(\"\", $b['labelValues']));\n });\n }\n\n /**\n * @param array $values\n * @return string\n * @throws RuntimeException\n */\n private function encodeLabelValues(array $values): string\n {\n $json = json_encode($values);\n if (false === $json) {\n throw new RuntimeException(json_last_error_msg());\n }\n return base64_encode($json);\n }\n\n /**\n * @param string $values\n * @return array\n * @throws RuntimeException\n */\n private function decodeLabelValues($values): array\n {\n $json = base64_decode($values, true);\n if (false === $json) {\n throw new RuntimeException('Cannot base64 decode label values');\n }\n $decodedValues = json_decode($json, true);\n if (false === $decodedValues) {\n throw new RuntimeException(json_last_error_msg());\n }\n return $decodedValues;\n }\n}\n" }, { "path": "src/Prometheus/Storage/Redis.php", "content": " '127.0.0.1',\n 'port' => 6379,\n 'timeout' => 0.1,\n 'read_timeout' => '10',\n 'persistent_connections' => false,\n 'password' => null,\n ];\n\n /**\n * @var string\n */\n private static $prefix = 'PROMETHEUS_';\n\n /**\n * @var array\n */\n private $options = [];\n\n /**\n * @var \\Redis\n */\n private $redis;\n\n /**\n * @var boolean\n */\n private $connectionInitialized = false;\n\n /**\n * Redis constructor.\n * @param array $options\n */\n public function __construct(array $options = [])\n {\n $this->options = array_merge(self::$defaultOptions, $options);\n $this->redis = new \\Redis();\n }\n\n public static function fromExistingConnection(\\Redis $redis): self\n {\n if ($redis->isConnected() === false) {\n throw new StorageException('Connection to Redis server not established');\n }\n\n $self = new self();\n $self->connectionInitialized = true;\n $self->redis = $redis;\n\n return $self;\n }\n\n /**\n * @param array $options\n */\n public static function setDefaultOptions(array $options): void\n {\n self::$defaultOptions = array_merge(self::$defaultOptions, $options);\n }\n\n /**\n * @param $prefix\n */\n public static function setPrefix($prefix): void\n {\n self::$prefix = $prefix;\n }\n\n /**\n * @throws StorageException\n */\n public function flushRedis(): void\n {\n $this->openConnection();\n $this->redis->flushAll();\n }\n\n /**\n * @return MetricFamilySamples[]\n * @throws StorageException\n */\n public function collect(): array\n {\n $this->openConnection();\n $metrics = $this->collectHistograms();\n $metrics = array_merge($metrics, $this->collectGauges());\n $metrics = array_merge($metrics, $this->collectCounters());\n return array_map(\n function (array $metric) {\n return new MetricFamilySamples($metric);\n },\n $metrics\n );\n }\n\n /**\n * @throws StorageException\n */\n private function openConnection(): void\n {\n if ($this->connectionInitialized === true) {\n return;\n }\n\n $connectionStatus = $this->connectToServer();\n if ($connectionStatus === false) {\n throw new StorageException(\"Can't connect to Redis server\", 0);\n }\n\n if ($this->options['password']) {\n $this->redis->auth($this->options['password']);\n }\n\n if (isset($this->options['database'])) {\n $this->redis->select($this->options['database']);\n }\n\n $this->redis->setOption(\\Redis::OPT_READ_TIMEOUT, $this->options['read_timeout']);\n }\n\n /**\n * @return bool\n */\n private function connectToServer(): bool\n {\n try {\n if ($this->options['persistent_connections']) {\n return $this->redis->pconnect(\n $this->options['host'],\n $this->options['port'],\n $this->options['timeout']\n );\n }\n\n return $this->redis->connect($this->options['host'], $this->options['port'], $this->options['timeout']);\n } catch (\\RedisException $e) {\n return false;\n }\n }\n\n /**\n * @param array $data\n * @throws StorageException\n */\n public function updateHistogram(array $data): void\n {\n $this->openConnection();\n $bucketToIncrease = '+Inf';\n foreach ($data['buckets'] as $bucket) {\n if ($data['value'] <= $bucket) {\n $bucketToIncrease = $bucket;\n break;\n }\n }\n $metaData = $data;\n unset($metaData['value']);\n unset($metaData['labelValues']);\n\n $this->redis->eval(\n <<toMetricKey($data),\n self::$prefix . Histogram::TYPE . self::PROMETHEUS_METRIC_KEYS_SUFFIX,\n json_encode(['b' => 'sum', 'labelValues' => $data['labelValues']]),\n json_encode(['b' => $bucketToIncrease, 'labelValues' => $data['labelValues']]),\n $data['value'],\n json_encode($metaData),\n ],\n 2\n );\n }\n\n /**\n * @param array $data\n * @throws StorageException\n */\n public function updateGauge(array $data): void\n {\n $this->openConnection();\n $metaData = $data;\n unset($metaData['value']);\n unset($metaData['labelValues']);\n unset($metaData['command']);\n $this->redis->eval(\n <<toMetricKey($data),\n self::$prefix . Gauge::TYPE . self::PROMETHEUS_METRIC_KEYS_SUFFIX,\n $this->getRedisCommand($data['command']),\n json_encode($data['labelValues']),\n $data['value'],\n json_encode($metaData),\n ],\n 2\n );\n }\n\n /**\n * @param array $data\n * @throws StorageException\n */\n public function updateCounter(array $data): void\n {\n $this->openConnection();\n $metaData = $data;\n unset($metaData['value']);\n unset($metaData['labelValues']);\n unset($metaData['command']);\n $this->redis->eval(\n <<toMetricKey($data),\n self::$prefix . Counter::TYPE . self::PROMETHEUS_METRIC_KEYS_SUFFIX,\n $this->getRedisCommand($data['command']),\n $data['value'],\n json_encode($data['labelValues']),\n json_encode($metaData),\n ],\n 2\n );\n }\n\n /**\n * @return array\n */\n private function collectHistograms(): array\n {\n $keys = $this->redis->sMembers(self::$prefix . Histogram::TYPE . self::PROMETHEUS_METRIC_KEYS_SUFFIX);\n sort($keys);\n $histograms = [];\n foreach ($keys as $key) {\n $raw = $this->redis->hGetAll(str_replace($this->redis->_prefix(''), '', $key));\n $histogram = json_decode($raw['__meta'], true);\n unset($raw['__meta']);\n $histogram['samples'] = [];\n\n // Add the Inf bucket so we can compute it later on\n $histogram['buckets'][] = '+Inf';\n\n $allLabelValues = [];\n foreach (array_keys($raw) as $k) {\n $d = json_decode($k, true);\n if ($d['b'] == 'sum') {\n continue;\n }\n $allLabelValues[] = $d['labelValues'];\n }\n\n // We need set semantics.\n // This is the equivalent of array_unique but for arrays of arrays.\n $allLabelValues = array_map(\"unserialize\", array_unique(array_map(\"serialize\", $allLabelValues)));\n sort($allLabelValues);\n\n foreach ($allLabelValues as $labelValues) {\n // Fill up all buckets.\n // If the bucket doesn't exist fill in values from\n // the previous one.\n $acc = 0;\n foreach ($histogram['buckets'] as $bucket) {\n $bucketKey = json_encode(['b' => $bucket, 'labelValues' => $labelValues]);\n if (!isset($raw[$bucketKey])) {\n $histogram['samples'][] = [\n 'name' => $histogram['name'] . '_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => array_merge($labelValues, [$bucket]),\n 'value' => $acc,\n ];\n } else {\n $acc += $raw[$bucketKey];\n $histogram['samples'][] = [\n 'name' => $histogram['name'] . '_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => array_merge($labelValues, [$bucket]),\n 'value' => $acc,\n ];\n }\n }\n\n // Add the count\n $histogram['samples'][] = [\n 'name' => $histogram['name'] . '_count',\n 'labelNames' => [],\n 'labelValues' => $labelValues,\n 'value' => $acc,\n ];\n\n // Add the sum\n $histogram['samples'][] = [\n 'name' => $histogram['name'] . '_sum',\n 'labelNames' => [],\n 'labelValues' => $labelValues,\n 'value' => $raw[json_encode(['b' => 'sum', 'labelValues' => $labelValues])],\n ];\n }\n $histograms[] = $histogram;\n }\n return $histograms;\n }\n\n /**\n * @return array\n */\n private function collectGauges(): array\n {\n $keys = $this->redis->sMembers(self::$prefix . Gauge::TYPE . self::PROMETHEUS_METRIC_KEYS_SUFFIX);\n sort($keys);\n $gauges = [];\n foreach ($keys as $key) {\n $raw = $this->redis->hGetAll(str_replace($this->redis->_prefix(''), '', $key));\n $gauge = json_decode($raw['__meta'], true);\n unset($raw['__meta']);\n $gauge['samples'] = [];\n foreach ($raw as $k => $value) {\n $gauge['samples'][] = [\n 'name' => $gauge['name'],\n 'labelNames' => [],\n 'labelValues' => json_decode($k, true),\n 'value' => $value,\n ];\n }\n usort($gauge['samples'], function ($a, $b) {\n return strcmp(implode(\"\", $a['labelValues']), implode(\"\", $b['labelValues']));\n });\n $gauges[] = $gauge;\n }\n return $gauges;\n }\n\n /**\n * @return array\n */\n private function collectCounters(): array\n {\n $keys = $this->redis->sMembers(self::$prefix . Counter::TYPE . self::PROMETHEUS_METRIC_KEYS_SUFFIX);\n sort($keys);\n $counters = [];\n foreach ($keys as $key) {\n $raw = $this->redis->hGetAll(str_replace($this->redis->_prefix(''), '', $key));\n $counter = json_decode($raw['__meta'], true);\n unset($raw['__meta']);\n $counter['samples'] = [];\n foreach ($raw as $k => $value) {\n $counter['samples'][] = [\n 'name' => $counter['name'],\n 'labelNames' => [],\n 'labelValues' => json_decode($k, true),\n 'value' => $value,\n ];\n }\n usort($counter['samples'], function ($a, $b) {\n return strcmp(implode(\"\", $a['labelValues']), implode(\"\", $b['labelValues']));\n });\n $counters[] = $counter;\n }\n return $counters;\n }\n\n /**\n * @param int $cmd\n * @return string\n */\n private function getRedisCommand(int $cmd): string\n {\n switch ($cmd) {\n case Adapter::COMMAND_INCREMENT_INTEGER:\n return 'hIncrBy';\n case Adapter::COMMAND_INCREMENT_FLOAT:\n return 'hIncrByFloat';\n case Adapter::COMMAND_SET:\n return 'hSet';\n default:\n throw new InvalidArgumentException(\"Unknown command\");\n }\n }\n\n /**\n * @param array $data\n * @return string\n */\n private function toMetricKey(array $data): string\n {\n return implode(':', [self::$prefix, $data['type'], $data['name']]);\n }\n}\n" }, { "path": "tests/Test/BlackBoxPushGatewayTest.php", "content": "registerCounter('test', 'some_counter', 'it increases', ['type']);\n $counter->incBy(6, ['blue']);\n\n $pushGateway = new PushGateway('pushgateway:9091');\n $pushGateway->push($registry, 'my_job', ['instance' => 'foo']);\n\n $httpClient = new Client();\n $metrics = $httpClient->get(\"http://pushgateway:9091/metrics\")->getBody()->getContents();\n $this->assertContains(\n '# HELP test_some_counter it increases\n# TYPE test_some_counter counter\ntest_some_counter{instance=\"foo\",job=\"my_job\",type=\"blue\"} 6',\n $metrics\n );\n\n $pushGateway->delete('my_job', ['instance' => 'foo']);\n\n $httpClient = new Client();\n $metrics = $httpClient->get(\"http://pushgateway:9091/metrics\")->getBody()->getContents();\n $this->assertNotContains(\n '# HELP test_some_counter it increases\n# TYPE test_some_counter counter\ntest_some_counter{instance=\"foo\",job=\"my_job\",type=\"blue\"} 6',\n $metrics\n );\n }\n}\n" }, { "path": "tests/Test/BlackBoxTest.php", "content": "adapter = getenv('ADAPTER');\n $this->client = new Client(['base_uri' => 'http://nginx:80/']);\n $this->client->get('/examples/flush_adapter.php?adapter=' . $this->adapter);\n }\n\n /**\n * @test\n */\n public function gaugesShouldBeOverwritten()\n {\n $start = microtime(true);\n $promises = [\n $this->client->getAsync('/examples/some_gauge.php?c=0&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_gauge.php?c=1&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_gauge.php?c=2&adapter=' . $this->adapter),\n\n ];\n\n Promise\\settle($promises)->wait();\n $end = microtime(true);\n echo \"\\ntime: \" . ($end - $start) . \"\\n\";\n\n $metricsResult = $this->client->get('/examples/metrics.php?adapter=' . $this->adapter);\n $body = (string)$metricsResult->getBody();\n echo \"\\nbody: \" . $body . \"\\n\";\n $this->assertThat(\n $body,\n $this->logicalOr(\n $this->stringContains('test_some_gauge{type=\"blue\"} 0'),\n $this->stringContains('test_some_gauge{type=\"blue\"} 1'),\n $this->stringContains('test_some_gauge{type=\"blue\"} 2')\n )\n );\n }\n\n /**\n * @test\n */\n public function countersShouldIncrementAtomically()\n {\n $start = microtime(true);\n $promises = [];\n $sum = 0;\n for ($i = 0; $i < 1100; $i++) {\n $promises[] = $this->client->getAsync('/examples/some_counter.php?c=' . $i . '&adapter=' . $this->adapter);\n $sum += $i;\n }\n\n Promise\\settle($promises)->wait();\n $end = microtime(true);\n echo \"\\ntime: \" . ($end - $start) . \"\\n\";\n\n $metricsResult = $this->client->get('/examples/metrics.php?adapter=' . $this->adapter);\n $body = (string)$metricsResult->getBody();\n\n $this->assertThat($body, $this->stringContains('test_some_counter{type=\"blue\"} ' . $sum));\n }\n\n /**\n * @test\n */\n public function histogramsShouldIncrementAtomically()\n {\n $start = microtime(true);\n $promises = [\n $this->client->getAsync('/examples/some_histogram.php?c=0&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=1&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=2&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=3&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=4&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=5&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=6&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=7&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=8&adapter=' . $this->adapter),\n $this->client->getAsync('/examples/some_histogram.php?c=9&adapter=' . $this->adapter),\n ];\n\n Promise\\settle($promises)->wait();\n $end = microtime(true);\n echo \"\\ntime: \" . ($end - $start) . \"\\n\";\n\n $metricsResult = $this->client->get('/examples/metrics.php?adapter=' . $this->adapter);\n $body = (string)$metricsResult->getBody();\n\n $this->assertThat($body, $this->stringContains(<<adapter = new APC();\n $this->adapter->flushAPC();\n }\n}\n" }, { "path": "tests/Test/Prometheus/APC/CounterTest.php", "content": "adapter = new APC();\n $this->adapter->flushAPC();\n }\n}\n" }, { "path": "tests/Test/Prometheus/APC/GaugeTest.php", "content": "adapter = new APC();\n $this->adapter->flushAPC();\n }\n}\n" }, { "path": "tests/Test/Prometheus/APC/HistogramTest.php", "content": "adapter = new APC();\n $this->adapter->flushAPC();\n }\n}\n" }, { "path": "tests/Test/Prometheus/AbstractCollectorRegistryTest.php", "content": "configureAdapter();\n $this->renderer = new RenderTextFormat();\n }\n\n /**\n * @test\n */\n public function itShouldSaveGauges()\n {\n $registry = new CollectorRegistry($this->adapter);\n\n $g = $registry->registerGauge('test', 'some_metric', 'this is for testing', ['foo']);\n $g->set(35, ['bbb']);\n $g->set(35, ['ddd']);\n $g->set(35, ['aaa']);\n $g->set(35, ['ccc']);\n\n\n $registry = new CollectorRegistry($this->adapter);\n $this->assertThat(\n $this->renderer->render($registry->getMetricFamilySamples()),\n $this->equalTo(\n <<adapter);\n $metric = $registry->registerCounter('test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $metric->incBy(2, ['lalal', 'lululu']);\n $registry->getCounter('test', 'some_metric', ['foo', 'bar'])->inc(['lalal', 'lululu']);\n $registry->getCounter('test', 'some_metric', ['foo', 'bar'])->inc(['lalal', 'lvlvlv']);\n\n $registry = new CollectorRegistry($this->adapter);\n $this->assertThat(\n $this->renderer->render($registry->getMetricFamilySamples()),\n $this->equalTo(\n <<adapter);\n $metric = $registry->registerHistogram(\n 'test',\n 'some_metric',\n 'this is for testing',\n ['foo', 'bar'],\n [0.1, 1, 5, 10]\n );\n $metric->observe(2, ['lalal', 'lululu']);\n $registry->getHistogram('test', 'some_metric', ['foo', 'bar'])->observe(7.1, ['lalal', 'lvlvlv']);\n $registry->getHistogram('test', 'some_metric', ['foo', 'bar'])->observe(13, ['lalal', 'lululu']);\n $registry->getHistogram('test', 'some_metric', ['foo', 'bar'])->observe(7.1, ['lalal', 'lululu']);\n $registry->getHistogram('test', 'some_metric', ['foo', 'bar'])->observe(7.1, ['gnaaha', 'hihihi']);\n\n $registry = new CollectorRegistry($this->adapter);\n $this->assertThat(\n $this->renderer->render($registry->getMetricFamilySamples()),\n $this->equalTo(\n <<adapter);\n $metric = $registry->registerHistogram('test', 'some_metric', 'this is for testing');\n $metric->observe(2);\n $registry->getHistogram('test', 'some_metric')->observe(13);\n $registry->getHistogram('test', 'some_metric')->observe(7.1);\n\n $registry = new CollectorRegistry($this->adapter);\n $this->assertThat(\n $this->renderer->render($registry->getMetricFamilySamples()),\n $this->equalTo(\n <<adapter);\n $registry\n ->registerCounter('', 'some_quick_counter', 'just a quick measurement')\n ->inc()\n ;\n\n $this->assertThat(\n $this->renderer->render($registry->getMetricFamilySamples()),\n $this->equalTo(\n <<adapter);\n $registry->registerCounter('foo', 'metric', 'help');\n\n $this->expectException(MetricsRegistrationException::class);\n $registry->registerCounter('foo', 'metric', 'help');\n }\n\n /**\n * @test\n */\n public function itShouldForbidRegisteringTheSameCounterWithDifferentLabels()\n {\n $registry = new CollectorRegistry($this->adapter);\n $registry->registerCounter('foo', 'metric', 'help', [\"foo\", \"bar\"]);\n\n $this->expectException(MetricsRegistrationException::class);\n $registry->registerCounter('foo', 'metric', 'help', [\"spam\", \"eggs\"]);\n }\n\n /**\n * @test\n */\n public function itShouldForbidRegisteringTheSameHistogramTwice()\n {\n $registry = new CollectorRegistry($this->adapter);\n $registry->registerHistogram('foo', 'metric', 'help');\n\n $this->expectException(MetricsRegistrationException::class);\n $registry->registerHistogram('foo', 'metric', 'help');\n }\n\n /**\n * @test\n */\n public function itShouldForbidRegisteringTheSameHistogramWithDifferentLabels()\n {\n $registry = new CollectorRegistry($this->adapter);\n $registry->registerCounter('foo', 'metric', 'help', [\"foo\", \"bar\"]);\n\n $this->expectException(MetricsRegistrationException::class);\n $registry->registerCounter('foo', 'metric', 'help', [\"spam\", \"eggs\"]);\n }\n\n /**\n * @test\n */\n public function itShouldForbidRegisteringTheSameGaugeTwice()\n {\n $registry = new CollectorRegistry($this->adapter);\n $registry->registerGauge('foo', 'metric', 'help');\n\n $this->expectException(MetricsRegistrationException::class);\n $registry->registerGauge('foo', 'metric', 'help');\n }\n\n /**\n * @test\n */\n public function itShouldForbidRegisteringTheSameGaugeWithDifferentLabels()\n {\n $registry = new CollectorRegistry($this->adapter);\n $registry->registerGauge('foo', 'metric', 'help', [\"foo\", \"bar\"]);\n\n $this->expectException(MetricsRegistrationException::class);\n $registry->registerGauge('foo', 'metric', 'help', [\"spam\", \"eggs\"]);\n }\n\n /**\n * @test\n */\n public function itShouldThrowAnExceptionWhenGettingANonExistentMetric()\n {\n $registry = new CollectorRegistry($this->adapter);\n\n $this->expectException(MetricNotFoundException::class);\n $registry->getGauge(\"not_here\", \"go_away\");\n }\n\n /**\n * @test\n */\n public function itShouldNotRegisterACounterTwice()\n {\n $registry = new CollectorRegistry($this->adapter);\n $counterA = $registry->getOrRegisterCounter(\"foo\", \"bar\", \"Help text\");\n $counterB = $registry->getOrRegisterCounter(\"foo\", \"bar\", \"Help text\");\n\n $this->assertSame($counterA, $counterB);\n }\n\n /**\n * @test\n */\n public function itShouldNotRegisterAGaugeTwice()\n {\n $registry = new CollectorRegistry($this->adapter);\n $gaugeA = $registry->getOrRegisterGauge(\"foo\", \"bar\", \"Help text\");\n $gaugeB = $registry->getOrRegisterGauge(\"foo\", \"bar\", \"Help text\");\n\n $this->assertSame($gaugeA, $gaugeB);\n }\n\n /**\n * @test\n */\n public function itShouldNotRegisterAHistogramTwice()\n {\n $registry = new CollectorRegistry($this->adapter);\n $histogramA = $registry->getOrRegisterHistogram(\"foo\", \"bar\", \"Help text\");\n $histogramB = $registry->getOrRegisterHistogram(\"foo\", \"bar\", \"Help text\");\n\n $this->assertSame($histogramA, $histogramB);\n }\n\n\n abstract public function configureAdapter();\n}\n" }, { "path": "tests/Test/Prometheus/AbstractCounterTest.php", "content": "configureAdapter();\n }\n\n abstract public function configureAdapter();\n\n /**\n * @test\n */\n public function itShouldIncreaseWithLabels()\n {\n $counter = new Counter($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $counter->inc(['lalal', 'lululu']);\n $counter->inc(['lalal', 'lululu']);\n $counter->inc(['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'type' => Counter::TYPE,\n 'help' => 'this is for testing',\n 'name' => 'test_some_metric',\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 3,\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldIncreaseWithoutLabelWhenNoLabelsAreDefined()\n {\n $counter = new Counter($this->adapter, 'test', 'some_metric', 'this is for testing');\n $counter->inc();\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'type' => Counter::TYPE,\n 'help' => 'this is for testing',\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'samples' => [\n [\n 'labelValues' => [],\n 'value' => 1,\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldIncreaseTheCounterByAnArbitraryInteger()\n {\n $counter = new Counter($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $counter->inc(['lalal', 'lululu']);\n $counter->incBy(123, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'type' => Counter::TYPE,\n 'help' => 'this is for testing',\n 'name' => 'test_some_metric',\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 124,\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldRejectInvalidMetricsNames()\n {\n $this->expectException(InvalidArgumentException::class);\n new Counter($this->adapter, 'test', 'some metric invalid metric', 'help');\n }\n\n /**\n * @test\n */\n public function itShouldRejectInvalidLabelNames()\n {\n $this->expectException(InvalidArgumentException::class);\n new Counter($this->adapter, 'test', 'some_metric', 'help', ['invalid label']);\n }\n\n /**\n * @test\n * @dataProvider labelValuesDataProvider\n *\n * @param mixed $value The label value\n */\n public function isShouldAcceptAnySequenceOfBasicLatinCharactersForLabelValues($value)\n {\n $label = 'foo';\n $histogram = new Counter($this->adapter, 'test', 'some_metric', 'help', [$label]);\n $histogram->inc([$value]);\n\n $metrics = $this->adapter->collect();\n $this->assertIsArray($metrics);\n $this->assertCount(1, $metrics);\n $this->assertContainsOnlyInstancesOf(MetricFamilySamples::class, $metrics);\n\n $metric = reset($metrics);\n $samples = $metric->getSamples();\n $this->assertContainsOnlyInstancesOf(Sample::class, $samples);\n\n foreach ($samples as $sample) {\n $labels = array_combine(\n array_merge($metric->getLabelNames(), $sample->getLabelNames()),\n $sample->getLabelValues()\n );\n $this->assertEquals($value, $labels[$label]);\n }\n }\n\n /**\n * @return array\n * @see isShouldAcceptArbitraryLabelValues\n */\n public function labelValuesDataProvider()\n {\n $cases = [];\n // Basic Latin\n // See https://en.wikipedia.org/wiki/List_of_Unicode_characters#Basic_Latin\n for ($i = 32; $i <= 121; $i++) {\n $cases['ASCII code ' . $i] = [chr($i)];\n }\n return $cases;\n }\n}\n" }, { "path": "tests/Test/Prometheus/AbstractGaugeTest.php", "content": "configureAdapter();\n }\n\n abstract public function configureAdapter();\n\n /**\n * @test\n */\n public function itShouldAllowSetWithLabels()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $gauge->set(123, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 123,\n ],\n ],\n ]\n ),\n ]\n )\n );\n $this->assertThat($gauge->getHelp(), $this->equalTo('this is for testing'));\n $this->assertThat($gauge->getType(), $this->equalTo(Gauge::TYPE));\n }\n\n /**\n * @test\n */\n public function itShouldAllowSetWithoutLabelWhenNoLabelsAreDefined()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing');\n $gauge->set(123);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => [],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 123,\n ],\n ],\n ]\n ),\n ]\n )\n );\n $this->assertThat($gauge->getHelp(), $this->equalTo('this is for testing'));\n $this->assertThat($gauge->getType(), $this->equalTo(Gauge::TYPE));\n }\n\n /**\n * @test\n */\n public function itShouldAllowSetWithAFloatValue()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing');\n $gauge->set(123.5);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => [],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 123.5,\n ],\n ],\n ]\n ),\n ]\n )\n );\n $this->assertThat($gauge->getHelp(), $this->equalTo('this is for testing'));\n $this->assertThat($gauge->getType(), $this->equalTo(Gauge::TYPE));\n }\n\n /**\n * @test\n */\n public function itShouldIncrementAValue()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $gauge->inc(['lalal', 'lululu']);\n $gauge->incBy(123, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 124,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldIncrementWithFloatValue()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $gauge->inc(['lalal', 'lululu']);\n $gauge->incBy(123.5, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 124.5,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldDecrementAValue()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $gauge->dec(['lalal', 'lululu']);\n $gauge->decBy(123, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => -124,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldDecrementWithFloatValue()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $gauge->dec(['lalal', 'lululu']);\n $gauge->decBy(123, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => -124,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldOverwriteWhenSettingTwice()\n {\n $gauge = new Gauge($this->adapter, 'test', 'some_metric', 'this is for testing', ['foo', 'bar']);\n $gauge->set(123, ['lalal', 'lululu']);\n $gauge->set(321, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Gauge::TYPE,\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'name' => 'test_some_metric',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 321,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldRejectInvalidMetricsNames()\n {\n $this->expectException(InvalidArgumentException::class);\n new Gauge($this->adapter, 'test', 'some metric invalid metric', 'help');\n }\n\n /**\n * @test\n */\n public function itShouldRejectInvalidLabelNames()\n {\n $this->expectException(InvalidArgumentException::class);\n new Gauge($this->adapter, 'test', 'some_metric', 'help', ['invalid label']);\n }\n\n /**\n * @test\n * @dataProvider labelValuesDataProvider\n *\n * @param mixed $value The label value\n */\n public function isShouldAcceptAnySequenceOfBasicLatinCharactersForLabelValues($value)\n {\n $label = 'foo';\n $histogram = new Gauge($this->adapter, 'test', 'some_metric', 'help', [$label]);\n $histogram->inc([$value]);\n\n $metrics = $this->adapter->collect();\n $this->assertIsArray($metrics);\n $this->assertCount(1, $metrics);\n $this->assertContainsOnlyInstancesOf(MetricFamilySamples::class, $metrics);\n\n $metric = reset($metrics);\n $samples = $metric->getSamples();\n $this->assertContainsOnlyInstancesOf(Sample::class, $samples);\n\n foreach ($samples as $sample) {\n $labels = array_combine(\n array_merge($metric->getLabelNames(), $sample->getLabelNames()),\n $sample->getLabelValues()\n );\n $this->assertEquals($value, $labels[$label]);\n }\n }\n\n /**\n * @return array\n * @see isShouldAcceptArbitraryLabelValues\n */\n public function labelValuesDataProvider()\n {\n $cases = [];\n // Basic Latin\n // See https://en.wikipedia.org/wiki/List_of_Unicode_characters#Basic_Latin\n for ($i = 32; $i <= 121; $i++) {\n $cases['ASCII code ' . $i] = [chr($i)];\n }\n return $cases;\n }\n}\n" }, { "path": "tests/Test/Prometheus/AbstractHistogramTest.php", "content": "configureAdapter();\n }\n\n abstract public function configureAdapter();\n\n /**\n * @test\n */\n public function itShouldObserveWithLabels()\n {\n $histogram = new Histogram(\n $this->adapter,\n 'test',\n 'some_metric',\n 'this is for testing',\n ['foo', 'bar'],\n [100, 200, 300]\n );\n $histogram->observe(123, ['lalal', 'lululu']);\n $histogram->observe(245, ['lalal', 'lululu']);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Histogram::TYPE,\n 'labelNames' => ['foo', 'bar'],\n 'samples' => [\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => ['lalal', 'lululu', 100],\n 'value' => 0,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => ['lalal', 'lululu', 200],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => ['lalal', 'lululu', 300],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => ['lalal', 'lululu', '+Inf'],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_count',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_sum',\n 'labelNames' => [],\n 'labelValues' => ['lalal', 'lululu'],\n 'value' => 368,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldObserveWithoutLabelWhenNoLabelsAreDefined()\n {\n $histogram = new Histogram(\n $this->adapter,\n 'test',\n 'some_metric',\n 'this is for testing',\n [],\n [100, 200, 300]\n );\n $histogram->observe(245);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Histogram::TYPE,\n 'labelNames' => [],\n 'samples' => [\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [100],\n 'value' => 0,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [200],\n 'value' => 0,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [300],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => ['+Inf'],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_count',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_sum',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 245,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldObserveValuesOfTypeDouble()\n {\n $histogram = new Histogram(\n $this->adapter,\n 'test',\n 'some_metric',\n 'this is for testing',\n [],\n [0.1, 0.2, 0.3]\n );\n $histogram->observe(0.11);\n $histogram->observe(0.3);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Histogram::TYPE,\n 'labelNames' => [],\n 'samples' => [\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.1],\n 'value' => 0,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.2],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.3],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => ['+Inf'],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_count',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_sum',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 0.41,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldProvideDefaultBuckets()\n {\n // .005, .01, .025, .05, .075, .1, .25, .5, .75, 1.0, 2.5, 5.0, 7.5, 10.0\n\n $histogram = new Histogram(\n $this->adapter,\n 'test',\n 'some_metric',\n 'this is for testing',\n []\n );\n $histogram->observe(0.11);\n $histogram->observe(0.03);\n $this->assertThat(\n $this->adapter->collect(),\n $this->equalTo(\n [\n new MetricFamilySamples(\n [\n 'name' => 'test_some_metric',\n 'help' => 'this is for testing',\n 'type' => Histogram::TYPE,\n 'labelNames' => [],\n 'samples' => [\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.005],\n 'value' => 0,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.01],\n 'value' => 0,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.025],\n 'value' => 0,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.05],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.075],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.1],\n 'value' => 1,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.25],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.5],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [0.75],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [1.0],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [2.5],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [5],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [7.5],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => [10],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_bucket',\n 'labelNames' => ['le'],\n 'labelValues' => ['+Inf'],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_count',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 2,\n ],\n [\n 'name' => 'test_some_metric_sum',\n 'labelNames' => [],\n 'labelValues' => [],\n 'value' => 0.14,\n ],\n ],\n ]\n ),\n ]\n )\n );\n }\n\n /**\n * @test\n */\n public function itShouldThrowAnExceptionWhenTheBucketSizesAreNotIncreasing()\n {\n $this->expectException(InvalidArgumentException::class);\n $this->expectExceptionMessage('Histogram buckets must be in increasing order');\n new Histogram($this->adapter, 'test', 'some_metric', 'this is for testing', [], [1, 1]);\n }\n\n /**\n * @test\n */\n public function itShouldThrowAnExceptionWhenThereIsLessThanOneBucket()\n {\n $this->expectException(InvalidArgumentException::class);\n $this->expectExceptionMessage('Histogram must have at least one bucket');\n new Histogram($this->adapter, 'test', 'some_metric', 'this is for testing', [], []);\n }\n\n /**\n * @test\n */\n public function itShouldThrowAnExceptionWhenThereIsALabelNamedLe()\n {\n $this->expectException(InvalidArgumentException::class);\n $this->expectExceptionMessage('Histogram cannot have a label named');\n new Histogram($this->adapter, 'test', 'some_metric', 'this is for testing', ['le'], [1]);\n }\n\n /**\n * @test\n */\n public function itShouldRejectInvalidMetricsNames()\n {\n $this->expectException(InvalidArgumentException::class);\n $this->expectExceptionMessage('Invalid metric name');\n new Histogram($this->adapter, 'test', 'some invalid metric', 'help', [], [1]);\n }\n\n /**\n * @test\n */\n public function itShouldRejectInvalidLabelNames()\n {\n $this->expectException(InvalidArgumentException::class);\n $this->expectExceptionMessage('Invalid label name');\n new Histogram($this->adapter, 'test', 'some_metric', 'help', ['invalid label'], [1]);\n }\n\n /**\n * @test\n * @dataProvider labelValuesDataProvider\n *\n * @param mixed $value The label value\n */\n public function isShouldAcceptAnySequenceOfBasicLatinCharactersForLabelValues($value)\n {\n $label = 'foo';\n $histogram = new Histogram($this->adapter, 'test', 'some_metric', 'help', [$label], [1]);\n $histogram->observe(1, [$value]);\n\n $metrics = $this->adapter->collect();\n $this->assertIsArray($metrics);\n $this->assertCount(1, $metrics);\n $this->assertContainsOnlyInstancesOf(MetricFamilySamples::class, $metrics);\n\n $metric = reset($metrics);\n $samples = $metric->getSamples();\n $this->assertContainsOnlyInstancesOf(Sample::class, $samples);\n\n foreach ($samples as $sample) {\n $labels = array_combine(\n array_merge($metric->getLabelNames(), $sample->getLabelNames()),\n $sample->getLabelValues()\n );\n $this->assertEquals($value, $labels[$label]);\n }\n }\n\n /**\n * @test\n */\n public function itShouldBeAbleToGenerateExponentialBucketsGivenSpecificBounds()\n {\n $start = 0.05;\n $growthFactor = 1.5;\n $numberOfbuckets = 14;\n\n $generatedBuckets = Histogram::exponentialBuckets($start, $growthFactor, $numberOfbuckets);\n\n $expectedBuckets = [\n 0.05,\n 0.075,\n 0.1125,\n 0.16875,\n 0.253125,\n 0.3796875,\n 0.56953125,\n 0.854296875,\n 1.2814453125,\n 1.92216796875,\n 2.883251953125,\n 4.3248779296875,\n 6.4873168945313,\n 9.7309753417969,\n ];\n\n $this->assertEquals($generatedBuckets, $expectedBuckets);\n }\n\n /**\n * @return array\n * @see isShouldAcceptArbitraryLabelValues\n */\n public function labelValuesDataProvider()\n {\n $cases = [];\n // Basic Latin\n // See https://en.wikipedia.org/wiki/List_of_Unicode_characters#Basic_Latin\n for ($i = 32; $i <= 121; $i++) {\n $cases['ASCII code ' . $i] = [chr($i)];\n }\n return $cases;\n }\n}\n" }, { "path": "tests/Test/Prometheus/InMemory/CollectorRegistryTest.php", "content": "adapter = new InMemory();\n $this->adapter->flushMemory();\n }\n}\n" }, { "path": "tests/Test/Prometheus/InMemory/CounterTest.php", "content": "adapter = new InMemory();\n $this->adapter->flushMemory();\n }\n}\n" }, { "path": "tests/Test/Prometheus/InMemory/GaugeTest.php", "content": "adapter = new InMemory();\n $this->adapter->flushMemory();\n }\n}\n" }, { "path": "tests/Test/Prometheus/InMemory/HistogramTest.php", "content": "adapter = new InMemory();\n $this->adapter->flushMemory();\n }\n}\n" }, { "path": "tests/Test/Prometheus/PushGatewayTest.php", "content": "createMock(CollectorRegistry::class);\n $mockedCollectorRegistry->method('getMetricFamilySamples')->with()->willReturn([\n $this->createMock(MetricFamilySamples::class)\n ]);\n\n $mockHandler = new MockHandler([\n new Response(200),\n new Response(202),\n ]);\n $handler = HandlerStack::create($mockHandler);\n $client = new Client(['handler' => $handler]);\n\n $pushGateway = new PushGateway('http://foo.bar', $client);\n $pushGateway->push($mockedCollectorRegistry, 'foo');\n }\n\n /**\n * @test\n *\n * @doesNotPerformAnyAssertions\n */\n public function invalidResponseShouldThrowRuntimeException(): void\n {\n $this->expectException(\\RuntimeException::class);\n\n $mockedCollectorRegistry = $this->createMock(CollectorRegistry::class);\n $mockedCollectorRegistry->method('getMetricFamilySamples')->with()->willReturn([\n $this->createMock(MetricFamilySamples::class)\n ]);\n\n $mockHandler = new MockHandler([\n new Response(201),\n new Response(300),\n ]);\n $handler = HandlerStack::create($mockHandler);\n $client = new Client(['handler' => $handler]);\n\n $pushGateway = new PushGateway('http://foo.bar', $client);\n $pushGateway->push($mockedCollectorRegistry, 'foo');\n }\n\n /**\n * @test\n */\n public function clientGetsDefinedIfNotSpecified(): void\n {\n $this->expectException(\\RuntimeException::class);\n\n $mockedCollectorRegistry = $this->createMock(CollectorRegistry::class);\n $mockedCollectorRegistry->method('getMetricFamilySamples')->with()->willReturn([\n $this->createMock(MetricFamilySamples::class)\n ]);\n\n $pushGateway = new PushGateway('http://foo.bar');\n $pushGateway->push($mockedCollectorRegistry, 'foo');\n }\n}\n" }, { "path": "tests/Test/Prometheus/Redis/CollectorRegistryTest.php", "content": "adapter = new Redis(['host' => REDIS_HOST]);\n $this->adapter->flushRedis();\n }\n}\n" }, { "path": "tests/Test/Prometheus/Redis/CounterTest.php", "content": "adapter = new Redis(['host' => REDIS_HOST]);\n $this->adapter->flushRedis();\n }\n}\n" }, { "path": "tests/Test/Prometheus/Redis/CounterWithPrefixTest.php", "content": "connect(REDIS_HOST);\n\n $connection->setOption(\\Redis::OPT_PREFIX, 'prefix:');\n\n $this->adapter = Redis::fromExistingConnection($connection);\n $this->adapter->flushRedis();\n }\n}\n" }, { "path": "tests/Test/Prometheus/Redis/GaugeTest.php", "content": "adapter = new Redis(['host' => REDIS_HOST]);\n $this->adapter->flushRedis();\n }\n}\n" }, { "path": "tests/Test/Prometheus/Redis/GaugeWithPrefixTest.php", "content": "connect(REDIS_HOST);\n\n $connection->setOption(\\Redis::OPT_PREFIX, 'prefix:');\n\n $this->adapter = Redis::fromExistingConnection($connection);\n $this->adapter->flushRedis();\n }\n}\n" }, { "path": "tests/Test/Prometheus/Redis/HistogramTest.php", "content": "adapter = new Redis(['host' => REDIS_HOST]);\n $this->adapter->flushRedis();\n }\n}\n" }, { "path": "tests/Test/Prometheus/Redis/HistogramWithPrefixTest.php", "content": "connect(REDIS_HOST);\n\n $connection->setOption(\\Redis::OPT_PREFIX, 'prefix:');\n\n $this->adapter = Redis::fromExistingConnection($connection);\n $this->adapter->flushRedis();\n }\n}\n" }, { "path": "tests/Test/Prometheus/Storage/RedisTest.php", "content": " '/dev/null']);\n\n $this->expectException(StorageException::class);\n $this->expectExceptionMessage(\"Can't connect to Redis server\");\n\n $redis->collect();\n $redis->flushRedis();\n }\n\n /**\n * @test\n */\n public function itShouldThrowExceptionWhenInjectedRedisIsNotConnected()\n {\n $connection = new \\Redis();\n\n $this->expectException(StorageException::class);\n $this->expectExceptionMessage('Connection to Redis server not established');\n\n Redis::fromExistingConnection($connection);\n }\n}\n" }, { "path": "tests/bootstrap.php", "content": "add('Test\\\\Prometheus', __DIR__);\n\ndefine('REDIS_HOST', isset($_SERVER['REDIS_HOST']) ? $_SERVER['REDIS_HOST'] : '127.0.0.1');\n" } ]