/* | |
* 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.myfaces.extensions.cdi.message.api; | |
import java.util.Arrays; | |
import java.util.Collections; | |
import java.util.Set; | |
import java.util.concurrent.CopyOnWriteArraySet; | |
/** | |
* Basic behaviour for message-handler implementations | |
*/ | |
public abstract class AbstractMessageHandler implements MessageHandler | |
{ | |
private Set<MessageFilter> messageFilters = new CopyOnWriteArraySet<MessageFilter>(); | |
/** | |
* {@inheritDoc} | |
*/ | |
public void addMessage(MessageContext messageContext, Message message) | |
{ | |
if (isMessageAllowed(messageContext, message)) | |
{ | |
processMessage(messageContext, message); | |
} | |
} | |
protected abstract void processMessage(MessageContext messageContext, Message message); | |
/** | |
* {@inheritDoc} | |
*/ | |
public void addMessageFilter(MessageFilter... messageFilters) | |
{ | |
this.messageFilters.addAll(Arrays.asList(messageFilters)); | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
public Set<MessageFilter> getMessageFilters() | |
{ | |
return Collections.unmodifiableSet(this.messageFilters); | |
} | |
private boolean isMessageAllowed(MessageContext messageContext, Message message) | |
{ | |
for (MessageFilter messageFilter : this.messageFilters) | |
{ | |
if (!messageFilter.processMessage(messageContext, message)) | |
{ | |
return false; | |
} | |
} | |
return true; | |
} | |
} |