From 4f4c5ce3ccf0370f926d75e700e8b0bd2208f3f6 Mon Sep 17 00:00:00 2001
From: Markus Warg <markus@mawaunix.mawa.sls>
Date: Wed, 31 Mar 2010 16:43:49 +0200
Subject: initial setup of framework code

enabled features
* login
* crt login
* top / left menu
* logging
* db layer
---
 manager/library/log/Log.php | 105 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 manager/library/log/Log.php

(limited to 'manager/library/log/Log.php')

diff --git a/manager/library/log/Log.php b/manager/library/log/Log.php
new file mode 100644
index 0000000..8ad27b9
--- /dev/null
+++ b/manager/library/log/Log.php
@@ -0,0 +1,105 @@
+<?php
+/**
+ * encapsulate Zend_Log with one or several log writers within an singleton class
+ * @author markus
+ * $Id: Log.php 77 2010-02-26 11:58:34Z markus $
+ */
+class Log {
+	/**
+	 * static pointer to instances
+	 * @var array(Config)
+	 */
+	private static $instances = array();
+
+	/**
+	 * can handle several instances, distinct by instance name string
+	 * @var string
+	 */
+	private $instanceName = '';
+
+	/**
+	 * config object
+	 * @var Zend_Log
+	 */
+	private $log = null;
+
+	/**
+	 * make new logger, configuration is taken from system_config, section $instanceName
+	 * @param string $instanceName
+	 * @param string $application
+	 */
+	protected function __construct($instanceName, $application = null) {
+		if ($instanceName === null)
+    		throw new Exception(__METHOD__ . ': expected an instance name, got none');
+
+    	$config = Config::getInstance(SYSTEM_CONFIG);
+    	$log_config = $config->$instanceName;
+
+		$this->log = new Zend_Log();
+    	if (isset($log_config->file) && intval($log_config->file->enabled) !== 0) {
+    		$file_logger = new Zend_Log_Writer_Stream($log_config->file->name);
+
+    		/**
+    		 *
+    		$format = Zend_Log_Formatter_Simple::DEFAULT_FORMAT;
+    		$formatter = new Zend_Log_Formatter_Simple($format);
+    		$file_logger->setFormatter($formatter);
+    		 */
+    		if (isset($application) && $application != '')
+    			$this->log->setEventItem('application', $application);
+    		$formatter = new Zend_Log_Formatter_Simple('%syslog_time% %application%[%pid%]: %priorityName%: %message%' . PHP_EOL);
+    		$file_logger->setFormatter($formatter);
+			$this->log->addWriter($file_logger);
+    	}
+    	if (isset($log_config->syslog) && intval($log_config->syslog->enabled) !== 0) {
+    		$param = array('facility' => $log_config->syslog->facility);
+    		if (isset($application) && $application != '')
+    			$param['application'] = $application;
+
+    		$sys_logger = new Zend_Log_Writer_Syslog($param);
+    		$formatter = new Zend_Log_Formatter_Simple('%priorityName%: %message%' . PHP_EOL);
+    		$sys_logger->setFormatter($formatter);
+			$this->log->addWriter($sys_logger);
+    	}
+
+    	$filter = new Zend_Log_Filter_Priority(intval($log_config->priority));
+    	$this->log->addFilter($filter);
+	}
+
+	/**
+	 * get already existing instance, make new instance or throw an exception
+	 * @param string $instanceName
+	 * @param string $application
+	 */
+	public static function getInstance($instanceName = null, $application = null) {
+		if ($instanceName === null) {
+			if (count(self::$instances) == 0)
+    			throw new Exception(__METHOD__ . ': expected an instance name, got none');
+    		return self::$instances[0];
+		}
+
+		if (!array_key_exists($instanceName, self::$instances)) {
+			self::$instances[$instanceName] = new Log($instanceName, $application);
+		}
+
+		return self::$instances[$instanceName];
+	}
+
+	/**
+	 * return SYSTEM_LOG for convenience
+	 * @return Zend_Log
+	 */
+	public static function Log() {
+		return self::$instances[SYSTEM_LOG]->getLog();
+	}
+
+	/**
+	 * get the Zend_Log object
+	 * @return Zend_Log
+	 */
+	public function getLog() {
+		$this->log->setEventItem('pid', posix_getpid());
+		$this->log->setEventItem('syslog_time', date('Y-m-d H:i:s'));
+		return $this->log;
+	}
+}
-- 
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