/*
* 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.webbeans.conversation;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.enterprise.context.Conversation;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import org.apache.webbeans.annotation.DefaultLiteral;
import org.apache.webbeans.config.OWBLogConst;
import org.apache.webbeans.config.WebBeansContext;
import org.apache.webbeans.context.ConversationContext;
import org.apache.webbeans.logger.WebBeansLoggerFacade;
import org.apache.webbeans.util.Asserts;
/**
* Manager for the conversations.
* Each conversation is related with conversation id and session id.
*
* @version $Rev: 1366640 $ $Date: 2012-07-28 13:24:18 +0200 (Sa, 28 Jul 2012) $
*
*/
public class ConversationManager
{
/**Current conversations*/
private final ConcurrentHashMap<Conversation, ConversationContext> conversations = new ConcurrentHashMap<Conversation, ConversationContext>();
private final WebBeansContext webBeansContext;
private final static Logger logger = WebBeansLoggerFacade.getLogger(ConversationManager.class);
/**
* Creates new conversation manager
*/
public ConversationManager(WebBeansContext webBeansContext)
{
this.webBeansContext = webBeansContext;
}
/**
* Adds new conversation context.
* @param conversation new conversation
* @param context new context
*/
public void addConversationContext(Conversation conversation, ConversationContext context)
{
conversations.put(conversation, context);
}
/**
* Check conversation id exists.
* @param conversationId conversation id
* @return true if this conversation exist
*/
public boolean isConversationExistWithGivenId(String conversationId)
{
ConversationImpl conv = null;
Set<Conversation> set = conversations.keySet();
Iterator<Conversation> it = set.iterator();
while (it.hasNext())
{
conv = (ConversationImpl) it.next();
if (conv.getId().equals(conversationId))
{
return true;
}
}
return false;
}
/**
* Return all conversation/context associated with sessionid.
*
* @param sessionId
* @return
*/
public Map<Conversation, ConversationContext> getConversationMapWithSessionId(String sessionId)
{
Asserts.assertNotNull(sessionId,"sessionId parameter can not be null");
Set<Conversation> set = conversations.keySet();
Iterator<Conversation> it = set.iterator();
ConversationImpl conv = null;
Map<Conversation, ConversationContext> map = new HashMap<Conversation, ConversationContext>();
while (it.hasNext())
{
conv = (ConversationImpl) it.next();
if (conv.getSessionId().equals(sessionId))
{
map.put(conv, conversations.get(conv));
}
}
return map;
}
/**
* Remove given conversation.
* @param conversation conversation instance
* @return context
*/
public ConversationContext removeConversation(Conversation conversation)
{
Asserts.assertNotNull(conversation, "conversation can not be null");
return conversations.remove(conversation);
}
/**
* Gets conversation's context instance.
* @param conversation conversation instance
* @return conversation related context
*/
public ConversationContext getConversationContext(Conversation conversation)
{
Asserts.assertNotNull(conversation, "conversation can not be null");
return conversations.get(conversation);
}
/**
* Gets conversation with id and session id.
* @param conversationId conversation id
* @param sessionId session id
* @return conversation
*/
public Conversation getPropogatedConversation(String conversationId, String sessionId)
{
Asserts.assertNotNull(conversationId, "conversationId parameter can not be null");
Asserts.assertNotNull(sessionId,"sessionId parameter can not be null");
ConversationImpl conv;
Set<Conversation> set = conversations.keySet();
Iterator<Conversation> it = set.iterator();
while (it.hasNext())
{
conv = (ConversationImpl) it.next();
if (conv.getId().equals(conversationId) && conv.getSessionId().equals(sessionId))
{
return conv;
}
}
return null;
}
/**
* Destroy conversations with given session id.
* @param sessionId session id
*/
public void destroyConversationContextWithSessionId(String sessionId)
{
Asserts.assertNotNull(sessionId, "sessionId parameter can not be null");
ConversationImpl conv;
Set<Conversation> set = conversations.keySet();
Iterator<Conversation> it = set.iterator();
while (it.hasNext())
{
conv = (ConversationImpl) it.next();
if (conv.getSessionId().equals(sessionId))
{
ConversationContext ctx = getConversationContext(conv);
if (ctx != null)
{
ctx.destroy();
}
it.remove();
}
}
}
/**
* Gets conversation instance from conversation bean.
* @return conversation instance
*/
@SuppressWarnings("unchecked")
public Conversation getConversationBeanReference()
{
BeanManager beanManager = webBeansContext.getBeanManagerImpl();
Bean<Conversation> bean = (Bean<Conversation>)beanManager.getBeans(Conversation.class, new DefaultLiteral()).iterator().next();
Conversation conversation =(Conversation) beanManager.getReference(bean, Conversation.class, beanManager.createCreationalContext(bean));
return conversation;
}
/**
* Destroy unactive conversations.
*/
public void destroyWithRespectToTimout()
{
ConversationImpl conv = null;
Set<Conversation> set = conversations.keySet();
Iterator<Conversation> it = set.iterator();
while (it.hasNext())
{
conv = (ConversationImpl) it.next();
long timeout = conv.getTimeout();
if (timeout != 0L)
{
if ((System.currentTimeMillis() - conv.getActiveTime()) > timeout)
{
ConversationContext ctx = getConversationContext(conv);
if (ctx != null)
{
if(logger.isLoggable(Level.INFO))
{
logger.log(Level.INFO, OWBLogConst.INFO_0011, conv.getId());
}
ctx.destroy();
}
it.remove();
}
}
}
}
/**
* Destroys all conversations
*/
public void destroyAllConversations()
{
Collection<ConversationContext> collection = conversations.values();
if(collection != null && collection.size() > 0)
{
for (ConversationContext context : collection)
{
context.destroy();
}
}
//Clear conversations
conversations.clear();
}
}