From 6523fb1d479a6ce5d1dbef038eccd5723a0c7e52 Mon Sep 17 00:00:00 2001
From: mark_story <mark@mark-story.com>
Date: Wed, 4 Nov 2009 18:19:22 -0500
Subject: [PATCH] Adding initial implementation of Logging streams.

---
 cake/libs/cake_log.php | 93 ++++++++++++++++++++++++++++++++++++------
 cake/libs/log/file.php | 61 +++++++++++++++++++++++++++
 2 files changed, 141 insertions(+), 13 deletions(-)
 create mode 100644 cake/libs/log/file.php

diff --git a/cake/libs/cake_log.php b/cake/libs/cake_log.php
index a0d556fbb..220ba2003 100644
--- a/cake/libs/cake_log.php
+++ b/cake/libs/cake_log.php
@@ -54,17 +54,90 @@
  * @subpackage    cake.cake.libs
  */
 class CakeLog {
+	
+/**
+ * An array of connected streams. 
+ * Each stream represents a callable that will be called when write() is called.
+ *
+ * @var array
+ * @access protected
+ **/
+	var $_streams = array();
+
+/**
+ * Get an instance
+ *
+ * @return void
+ * @static
+ **/
+	function getInstance() {
+		static $instance = array();
+		if (!isset($instance[0])) {
+			$instance[0] = new CakeLog();
+		}
+		return $instance[0];
+	}
+
+/**
+ * Returns the keynames of the currently active streams
+ *
+ * @return array
+ * @static
+ **/
+	function streams() {
+		$self = CakeLog::getInstance();
+		return array_keys($self->_streams);
+	}
+
+/**
+ * Remove a stream from the active streams.  Once a stream has been removed
+ * it will no longer be called.
+ *
+ * @param string $keyname Key name of callable to remove.
+ * @return void
+ * @static
+ **/
+	function removeStream($streamName) {
+		$self = CakeLog::getInstance();
+		unset($self->_streams[$streamName]);
+	}
+
+/**
+ * Add a stream the logger.
+ * Streams represent destinations for log messages.  Each stream can connect to 
+ * a different resource /interface and capture/write output to that source.
+ *
+ * @param string $key Keyname of config.
+ * @param array $config Array of config information for the LogStream
+ * @return boolean success
+ **/
+	function addStream($key, $config) {
+		$self = CakeLog::getInstance();
+		$self->_streams[$key] = $config;
+	}
+
+/**
+ * Configures the automatic/default stream a FileLogger.
+ *
+ * @return void
+ **/
+	function _autoConfig() {
+		if (!class_exists('FileLogger')) {
+			require LIBS . 'log' . DS . 'file.php';
+		}
+		$this->_streams['default'] = array('FileLogger', 'write');
+	}
 
 /**
  * Writes given message to a log file in the logs directory.
  *
  * @param string $type Type of log, becomes part of the log's filename
- * @param string $msg  Message to log
+ * @param string $message  Message to log
  * @return boolean Success
  * @access public
  * @static
  */
-	function write($type, $msg) {
+	function write($type, $message) {
 		if (!defined('LOG_ERROR')) {
 			define('LOG_ERROR', 2);
 		}
@@ -83,18 +156,12 @@ class CakeLog {
 		if (is_int($type) && isset($levels[$type])) {
 			$type = $levels[$type];
 		}
-
-		if ($type == 'error' || $type == 'warning') {
-			$filename = LOGS . 'error.log';
-		} elseif (in_array($type, $levels)) {
-			$filename = LOGS . 'debug.log';
-		} else {
-			$filename = LOGS . $type . '.log';
+		$self = CakeLog::getInstance();
+		if (empty($self->_streams)) {
+			$self->_autoConfig();
 		}
-		$output = date('Y-m-d H:i:s') . ' ' . ucfirst($type) . ': ' . $msg . "\n";
-		$log = new File($filename, true);
-		if ($log->writable()) {
-			return $log->append($output);
+		foreach ($self->_streams as $key => $callable) {
+			call_user_func($callable, $type, $message);
 		}
 	}
 
diff --git a/cake/libs/log/file.php b/cake/libs/log/file.php
new file mode 100644
index 000000000..42387b0f8
--- /dev/null
+++ b/cake/libs/log/file.php
@@ -0,0 +1,61 @@
+<?php
+/**
+ * File Storage stream for Logging
+ *
+ *
+ * PHP versions 4 and 5
+ *
+ * CakePHP(tm) :  Rapid Development Framework (http://www.cakephp.org)
+ * Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @filesource
+ * @copyright     Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
+ * @link          http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
+ * @package       cake
+ * @subpackage    cake.cake.libs.log
+ * @since         CakePHP(tm) v 1.3
+ * @license       http://www.opensource.org/licenses/mit-license.php The MIT License
+ */
+
+/**
+ * File Storage stream for Logging
+ *
+ * @package       cake
+ * @subpackage    cake.cake.libs.log
+ */
+class FileLogger {
+/**
+ * Implements writing to log files.
+ *
+ * @return void
+ **/
+	function write($type, $message) {
+		$levels = array(
+			LOG_WARNING => 'warning',
+			LOG_NOTICE => 'notice',
+			LOG_INFO => 'info',
+			LOG_DEBUG => 'debug',
+			LOG_ERR => 'error',
+			LOG_ERROR => 'error'
+		);
+
+		if (is_int($type) && isset($levels[$type])) {
+			$type = $levels[$type];
+		}
+		if ($type == 'error' || $type == 'warning') {
+			$filename = LOGS . 'error.log';
+		} elseif (in_array($type, $levels)) {
+			$filename = LOGS . 'debug.log';
+		} else {
+			$filename = LOGS . $type . '.log';
+		}
+		$output = date('Y-m-d H:i:s') . ' ' . ucfirst($type) . ': ' . $message . "\n";
+		$log = new File($filename, true);
+		if ($log->writable()) {
+			return $log->append($output);
+		}
+	}
+}
\ No newline at end of file