/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.resource;
import java.io.IOException;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.UUID;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import org.ajax4jsf.javascript.ScriptUtils;
import org.richfaces.application.push.PushContext;
import org.richfaces.application.push.PushContextFactory;
import org.richfaces.application.push.Session;
import org.richfaces.application.push.TopicKey;
import org.richfaces.application.ServiceTracker;
/**
* @author Nick Belaevski
*
*/
@DynamicResource
public class PushResource extends AbstractUserResource {
private static final String PUSH_TOPIC_PARAM = "pushTopic";
private static final String FORGET_PUSH_SESSION_ID_PARAM = "forgetPushSessionId";
private Map<String, String> getFailuresMap(Map<TopicKey, String> failedSubscriptions) {
Map<String, String> result = new HashMap<String, String>();
for (Entry<TopicKey, String> entry : failedSubscriptions.entrySet()) {
result.put(entry.getKey().getTopicAddress(), entry.getValue());
}
return result;
}
public void encode(FacesContext facesContext) throws IOException {
ExternalContext externalContext = facesContext.getExternalContext();
PushContextFactory pushContextFactory = ServiceTracker.getService(PushContextFactory.class);
// resource plugin stub
if (pushContextFactory == null) {
return;
}
PushContext pushContext = pushContextFactory.getPushContext();
String forgetPushSessionId = externalContext.getRequestParameterMap().get(FORGET_PUSH_SESSION_ID_PARAM);
if (forgetPushSessionId != null) {
Session oldSession = pushContext.getSessionManager().getPushSession(forgetPushSessionId);
if (oldSession != null) {
oldSession.invalidate();
}
}
Session session = pushContext.getSessionFactory().createSession(UUID.randomUUID().toString());
String[] topicNames = externalContext.getRequestParameterValuesMap().get(PUSH_TOPIC_PARAM);
if (topicNames == null) {
throw new IllegalArgumentException(PUSH_TOPIC_PARAM + " request parameter must be present");
}
session.subscribe(topicNames);
Map<String, Object> subscriptionData = new HashMap<String, Object>(4);
subscriptionData.put("sessionId", session.getId());
Map<TopicKey, String> failedSubscriptions = session.getFailedSubscriptions();
subscriptionData.put("failures", getFailuresMap(failedSubscriptions));
Writer outWriter = facesContext.getExternalContext().getResponseOutputWriter();
ScriptUtils.appendScript(outWriter, subscriptionData);
}
public String getContentType() {
return "text/javascript; charset=utf-8";
}
}