From 3d3f8d3832921f99daf8ce1953304763c2e76c62 Mon Sep 17 00:00:00 2001
From: wei <>
Date: Fri, 14 Apr 2006 06:22:09 +0000
Subject: Importing SQLMap + sample + docs.

---
 .../SQLMap/Configuration/TSqlMapCacheModel.php     | 131 +++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php

(limited to 'framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php')

diff --git a/framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php b/framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php
new file mode 100644
index 00000000..6c945155
--- /dev/null
+++ b/framework/DataAccess/SQLMap/Configuration/TSqlMapCacheModel.php
@@ -0,0 +1,131 @@
+<?php
+
+class TSqlMapCacheModel extends TComponent
+{
+	private $_cache;
+	private $_flushInterval = -1;
+	private $_hits = 0;
+	private $_requests = 0;
+	private $_id;
+	private $_lastFlush;
+	private $_implementation;
+	private $_properties = array();
+
+
+	public function getID(){ return $this->_id; }
+	public function setID($value){ $this->_id = $value; }
+
+	public function getImplementation(){ return $this->_implementation; }
+	public function setImplementation($value){ $this->_implementation = $value; }
+
+	public function getFlushInterval(){ return $this->_flushInterval; }
+	public function setFlushInterval($value){ $this->_flushInterval = $value; }
+
+	public function initialize($sqlMap)
+	{
+		$implementation = $this->getImplementationClass(
+				$sqlMap->getTypeHandlerFactory());
+		$this->_cache = new $implementation;
+		$this->_cache->configure($this->_properties);
+	}
+
+	protected function getImplementationClass($typeFactory)
+	{
+		switch(strtolower($this->_implementation))
+		{
+			case 'fifo': return 'TSqlMapFifoCache';
+			case 'lru' : return 'TSqlMapLruCache';
+		}
+
+		if(class_exists($this->_implementation, false))
+			$class = $this->_implementation;
+		else
+			$class  = $typeFactory->getTypeHandler($this->_implementation);
+		if(!is_null($class)) 
+			return $class;
+		else
+			throw new TSqlMapConfigurationException(
+				'sqlmap_unable_to_find_implemenation', $this->_implementation);
+	}
+
+	public function addProperty($name, $value)
+	{
+		$this->_properties[strtolower($name)] = $value;
+	}
+
+	public function registerTriggerStatement($mappedStatement)
+	{
+		$mappedStatement->attachEventHandler('OnExecuteQuery', 
+				array($this, 'flushHandler'));
+	}
+
+	protected function flushHandler($sender, $param)
+	{
+		$this->flush();
+	}
+
+	public function flush()
+	{
+		var_dump("flush!");
+		$this->_cache->flush();
+	}
+
+	public function get($key)
+	{
+		if($key instanceof TSqlMapCacheKey)
+			$key = $key->getHash();
+
+		//if flush ?
+		$value = $this->_cache->get($key);
+		$this->_requests++;
+		if(!is_null($value))
+			$this->_hits++;
+		return $value;
+	}
+
+	public function set($key, $value)
+	{
+		if($key instanceof TSqlMapCacheKey)
+			$key = $key->getHash();
+
+		if(!is_null($value))
+			$this->_cache->set($key, $value);
+	}
+
+	public function getHitRatio()
+	{
+		if($this->_requests != 0)
+			return $this->_hits / $this->_requests;
+		else
+			return 0;
+	}
+}
+
+
+class TSqlMapCacheKey
+{
+	private $_key;
+
+	public function __construct($object)
+	{
+		$this->_key = $this->generateKey(serialize($object));
+	}
+
+	protected function generateKey($string)
+	{
+		return sprintf('%x',crc32($string));
+	}
+
+	public function getHash()
+	{
+		return $this->_key;
+	}
+
+	public function __toString()
+	{
+		return $this->getHash();
+	}
+}
+
+
+?>
\ No newline at end of file
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