/**
* Copyright 2012 Comcast Corporation
*
* 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 com.comcast.cns.controller;
import javax.servlet.AsyncContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import com.comcast.cmb.common.model.CMBPolicy;
import com.comcast.cmb.common.model.User;
import com.comcast.cmb.common.persistence.PersistenceFactory;
import com.comcast.cmb.common.util.CMBException;
import com.comcast.cns.io.CNSTopicPopulator;
import com.comcast.cns.model.CNSTopic;
import com.comcast.cns.util.CNSErrorCodes;
import com.comcast.cns.util.Util;
/**
* Create Topic
* @author bwolf, jorge
*/
public class CNSCreateTopicAction extends CNSAction {
private static Logger logger = Logger.getLogger(CNSCreateTopicAction.class);
public CNSCreateTopicAction() {
super("CreateTopic");
}
/*
* doCreateTopic creates the topic by calling the CNS Topic Persistence layer to create the queue, and if no Exceptions occur
* then output the new topics data as XML to the HttpServletResponse response
* @param user The user that requests this topic
* @param asyncContext
*/
@Override
public boolean doAction(User user, AsyncContext asyncContext) throws Exception {
HttpServletRequest request = (HttpServletRequest)asyncContext.getRequest();
HttpServletResponse response = (HttpServletResponse)asyncContext.getResponse();
String displayName = request.getParameter("Name");
String name = request.getParameter("Name");
String userId = user.getUserId();
logger.debug("event=cns_topic_create name=" + name + " display_name=" + displayName + " user_id=" + userId);
if (name == null || userId == null) {
logger.error("event=cns_topic_create error_code=InvalidParameters name=" + name + " user_id=" + userId);
throw new CMBException(CNSErrorCodes.CNS_InvalidParameter,"request parameter does not comply with the associated constraints.");
}
if (!Util.isValidTopicName(name)) {
throw new CMBException(CNSErrorCodes.InvalidParameterValue, "Invalid parameter topic name.");
}
CNSTopic newTopic;
newTopic = PersistenceFactory.getTopicPersistence().createTopic(name, displayName, userId);
String topicArn = newTopic.getArn();
String out = CNSTopicPopulator.getCreateTopicResponse(topicArn);
writeResponse(out, response);
return true;
}
@Override
public boolean isActionAllowed(User user, HttpServletRequest request, String service, CMBPolicy policy) throws Exception {
return true;
}
}