/*
* Copyright 2008 biaoping.yin
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.frameworkset.spi.assemble;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import org.frameworkset.spi.UNmodify;
/**
* <p>Title: AOPMethods.java</p>
* <p>Description: </p>
* <p>bboss workgroup</p>
* <p>Copyright (c) 2007</p>
* @Date 2011-4-20 下午03:21:57
* @author biaoping.yin
* @version 1.0
*/
public class AOPMethods implements java.io.Serializable,UNmodify
{
private static Logger log = Logger.getLogger(Transactions.class);
/**
* 事务方法信息 List<SynchronizedMethod>
*/
private List<SynchronizedMethod> aopMethods;
/**
* 标识方法是否是声明式事务方法 Map<methoduuid,SynchronizedMethod>
*/
private Map aopMethodInfoIDX;
public static final SynchronizedMethod NULL = new SynchronizedMethod();
public AOPMethods()
{
aopMethods = new ArrayList();
aopMethodInfoIDX = new HashMap();
}
/**
* 判断方法是否是需要进行事务控制,如果是则返回包含事务控制策略信息的方法对象， 不是就返回null
*
* @param method
* @return SynchronizedMethod 包含事务控制策略信息
*/
public SynchronizedMethod isTransactionMethod(Method method,String uuid)
{
return containMethod(method,uuid);
}
/**
* 判断给定的方法是否是异步调用方法，如果是则将异步方法信息返回给调用程序
* @param method
* @return
*/
public SynchronizedMethod isAsyncMethod(Method method,String uuid)
{
return containMethod(method,uuid);
}
private SynchronizedMethod containMethod(Method method, String uuid)
{
if(aopMethods == null || aopMethods.size() == 0)
return null;
try
{
if(uuid == null)
uuid = SynchronizedMethod.buildMethodUUID(method);
SynchronizedMethod match = (SynchronizedMethod) aopMethodInfoIDX.get(uuid);
if (match == null)
{
synchronized (this)
{
match = (SynchronizedMethod) aopMethodInfoIDX.get(uuid);
if (match != null)
{
if (match == NULL)
{
return null;
}
else
{
return match;
}
}
for (int i = 0; i < aopMethods.size(); i++)
{
SynchronizedMethod m = (SynchronizedMethod) aopMethods.get(i);
if (m.match(method, uuid))
{
this.aopMethodInfoIDX.put(uuid, m);
return m;
}
}
aopMethodInfoIDX.put(uuid, NULL);
return null;
}
}
else
{
if (match == NULL)
{
return null;
}
else
{
return match;
}
}
}
catch (Exception e)
{
log.info("",e);
return null;
}
}
public int size()
{
return this.aopMethods.size();
}
public void addTransactionMethod(SynchronizedMethod method)
{
if(this.containTransactionMethod(method))
return;
this.aopMethods.add(method);
}
private boolean containTransactionMethod(SynchronizedMethod method)
{
if(aopMethods == null || aopMethods.size() == 0)
return false;
for(SynchronizedMethod method_: this.aopMethods)
{
if(method_.getUUID().equals(method.getUUID()))
return true;
}
return false;
}
public List<SynchronizedMethod> getTransactionMethods()
{
return aopMethods;
}
public void unmodify()
{
aopMethods = java.util.Collections.unmodifiableList(aopMethods);
// this.aopMethodInfoIDX = java.util.Collections.unmodifiableMap(this.aopMethodInfoIDX);
}
}