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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.policy.guardianExceptionHandling;
import java.util.HashMap;
import java.util.Map;
import org.apache.tuscany.sca.implementation.guardian.GuardianMember;
import org.apache.tuscany.sca.invocation.Message;
public class GuardianMemberFactoryImpl {
Map<String, GuardianMember> guardianMembers;
private static GuardianMemberFactoryImpl instance = null;
public static GuardianMemberFactoryImpl getInstance() {
if (instance == null) {
instance = new GuardianMemberFactoryImpl();
}
return instance;
}
protected GuardianMemberFactoryImpl() {
guardianMembers = new HashMap<String, GuardianMember>();
}
public GuardianMember createGuardianMember(String componentName, Message msg, GuardianExceptionHandlingPolicyInterceptor interceptor) {
GuardianMemberImpl gm = (GuardianMemberImpl) guardianMembers.get(componentName);
if (gm == null) {
gm = new GuardianMemberImpl(componentName, msg, interceptor);
guardianMembers.put(componentName, gm);
//Inform the Guardian Group of the new Guardian Member
Object msgBody = msg.getBody();
msg.setBody(gm);
interceptor.invokeGuardianGroupOperation("addGuardianMember", msg);
msg.setBody(msgBody);
}
gm.setMessage(msg);
gm.setGuardianExceptionHandlingPolicyInterceptor(interceptor);
return gm;
}
public GuardianMember removeGuardianMember(String componentName, Message msg, GuardianExceptionHandlingPolicyInterceptor interceptor) {
GuardianMember gm = guardianMembers.remove(componentName);
if (gm != null) {
Object msgBody = msg.getBody();
msg.setBody(gm);
interceptor.invokeGuardianGroupOperation("removeGuardianMember", msg);
msg.setBody(msgBody);
}
return gm;
}
}
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