Merge pull request #4 from philwc/custom-pattern

Add ability to use custom patterns

README.md

@@ -7,22 +7,22 @@ A simple library for parsing [monolog](https://github.com/Seldaek/monolog) logfi
 
 You can install the library using [composer]('http://getcomposer.org/) by adding  `ddtraceweb/monolog-parser` to your `composer.json`.
 
-## Usage 
+## Usage
 
 * 1 days of logs
 
 ```php
     require_once 'path/to/vendor/autoload.php';
-    
+
     use Dubture\Monolog\Reader\LogReader;
-    
+
     $logFile = '/path/to/some/monolog.log';
     $reader = new LogReader($logFile);
-    
+
     foreach ($reader as $log) {
         echo sprintf("The log entry was written at %s. \n", $log['date']->format('Y-m-d h:i:s'));
     }
-    
+
     $lastLine = $reader[count($reader)-1];
     echo sprintf("The last log entry was written at %s. \n", $lastLine['date']->format('Y-m-d h:i:s'));
 
@@ -32,16 +32,16 @@ You can install the library using [composer]('http://getcomposer.org/) by adding
 
 ```php
     require_once 'path/to/vendor/autoload.php';
-    
+
     use Dubture\Monolog\Reader\LogReader;
-    
+
     $logFile = '/path/to/some/monolog.log';
     $reader = new LogReader($logFile, 0);
-    
+
     foreach ($reader as $log) {
         echo sprintf("The log entry was written at %s. \n", $log['date']->format('Y-m-d h:i:s'));
     }
-    
+
     $lastLine = $reader[count($reader)-1];
     echo sprintf("The last log entry was written at %s. \n", $lastLine['date']->format('Y-m-d h:i:s'));
 
@@ -51,23 +51,43 @@ You can install the library using [composer]('http://getcomposer.org/) by adding
 
 ```php
     require_once 'path/to/vendor/autoload.php';
-    
+
     use Dubture\Monolog\Reader\LogReader;
-    
+
     $logFile = '/path/to/some/monolog.log';
     $reader = new LogReader($logFile, 2);
-    
+
     foreach ($reader as $log) {
         echo sprintf("The log entry was written at %s. \n", $log['date']->format('Y-m-d h:i:s'));
     }
-    
+
     $lastLine = $reader[count($reader)-1];
     echo sprintf("The last log entry was written at %s. \n", $lastLine['date']->format('Y-m-d h:i:s'));
 
 ```
 
+* Add custom pattern
+```php
+
+    require_once 'path/to/vendor/autoload.php';
+
+    use Dubture\Monolog\Reader\LogReader;
+
+    $logFile = '/path/to/some/monolog.log';
+    $reader = new LogReader($logFile);
+
+    $pattern = '/\[(?P<date>.*)\] (?P<logger>[\w-\s]+).(?P<level>\w+): (?P<message>[^\[\{]+) (?P<context>[\[\{].*[\]\}]) (?P<extra>[\[\{].*[\]\}])/';
+    $reader->getParser()->registerPattern('newPatternName', $pattern);
+    $reader->setPattern('newPatternName');
 
+    foreach ($reader as $log) {
+        echo sprintf("The log entry was written at %s. \n", $log['date']->format('Y-m-d h:i:s'));
+    }
 
+    $lastLine = $reader[count($reader)-1];
+    echo sprintf("The last log entry was written at %s. \n", $lastLine['date']->format('Y-m-d h:i:s'));
+
+```
 
 
 [![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/ddtraceweb/monolog-parser/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

src/Dubture/Monolog/Parser/LineLogParser.php

@@ -70,4 +70,18 @@ public function parse($log, $days = 1, $pattern = 'default')
             }
         }
     }
+
+    /**
+     * @param string $name
+     * @param string $pattern
+     *
+     * @throws \RuntimeException
+     */
+    public function registerPattern($name, $pattern){
+        if(!isset($this->pattern[$name])){
+            $this->pattern[$name] = $pattern;
+        }else{
+            throw new \RuntimeException("Pattern $name already exists");
+        }
+    }
 }

src/Dubture/Monolog/Reader/LogReader.php

@@ -60,6 +60,23 @@ public function __construct($file, $days = 1, $pattern = 'default')
         $this->parser    = $this->getDefaultParser($days, $pattern);
     }
 
+    /**
+     * @return \Dubture\Monolog\Parser\LineLogParser|\Dubture\Monolog\Parser\LogParserInterface
+     */
+    public function getParser()
+    {
+        $p =  & $this->parser;
+        return $p;
+    }
+
+    /**
+     * @param string $pattern
+     */
+    public function setPattern( $pattern = 'default' )
+    {
+        $this->pattern = $pattern;
+    }
+
     /**
      * {@inheritdoc}
      */