Added PsrLoggerAdapter

Author: Petr Knap

composer.json

@@ -22,10 +22,12 @@
   },
   "conflict-note": "We are using 'conflict' combined with 'require-dev' to '*' as soft require.",
   "conflict": {
+    "psr/log": "<1.0 || >= 2",
     "tracy/tracy": "<2.2 || >=3",
     "nette/di": "<2.2 || >=3"
   },
   "require-dev": {
+    "psr/log": "*",
     "tracy/tracy": "*",
     "nette/di": "*",
     "nette/bootstrap": "^2.3",

src/Profiler/Adapter/PsrLoggerAdapter.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Netpromotion\Profiler\Adapter;
+
+use Netpromotion\Profiler\Profiler;
+use /** @noinspection PhpInternalEntityUsedInspection */ Netpromotion\Profiler\Service\ProfilerService;
+use PetrKnap\Php\Profiler\Profile;
+use Psr\Log\LoggerInterface;
+
+class PsrLoggerAdapter
+{
+    /**
+     * @var ProfilerService
+     */
+    private $service;
+
+    /**
+     * @var LoggerInterface
+     */
+    private $logger;
+
+    /**
+     * @param LoggerInterface $logger
+     */
+    public function __construct(LoggerInterface $logger)
+    {
+        /** @noinspection PhpInternalEntityUsedInspection */
+        $this->service = ProfilerService::getInstance();
+        $this->logger = $logger;
+    }
+
+    /**
+     * Logs known profiles
+     *
+     * @return void
+     */
+    public function log()
+    {
+        if (Profiler::isEnabled()) {
+            $this->service->iterateProfiles(function (Profile $profile) {
+                $this->logger->debug(sprintf(
+                    "%s -> %s: %d ms, %d kB",
+                    $profile->meta[Profiler::START_LABEL],
+                    $profile->meta[Profiler::FINISH_LABEL],
+                    $profile->duration * 1000,
+                    $profile->memoryUsageChange / 1024
+                ), $profile->jsonSerialize());
+            });
+        }
+    }
+}

tests/Profiler/Adapter/PsrLoggerAdapterTest.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Netpromotion\Profiler\Test\Adapter;
+
+use Netpromotion\Profiler\Adapter\PsrLoggerAdapter;
+use Netpromotion\Profiler\Profiler;
+
+class PsrLoggerAdapterTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider dataAdapterWorks
+     * @param bool $enabled
+     * @runInSeparateProcess
+     */
+    public function testAdapterWorks($enabled)
+    {
+        $logger = $this->getMock("Psr\\Log\\LoggerInterface");
+        $logger->expects($this->exactly($enabled ? 6 : 0))
+            ->method("debug")->willReturn(null);
+        $adapter = new PsrLoggerAdapter($logger);
+
+        if ($enabled) {
+            Profiler::enable();
+        }
+
+        Profiler::start("1");
+        {
+            Profiler::start("1.1");
+            {
+                Profiler::start("1.1.1");
+                Profiler::finish("1.1.1");
+                Profiler::start("1.1.2");
+                Profiler::finish("1.1.2");
+            }
+            Profiler::finish("1.1");
+            Profiler::start("1.2");
+            Profiler::finish("1.2");
+        }
+        Profiler::finish("1");
+        Profiler::start("2");
+        Profiler::finish("2");
+
+        $adapter->log();
+    }
+
+    public function dataAdapterWorks()
+    {
+        return [[false], [true]];
+    }
+}