/**
* 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.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.util.CNSErrorCodes;
/**
* Delete topic
* @author bwolf
*
*/
public class CNSDeleteTopicAction extends CNSAction {
private static Logger logger = Logger.getLogger(CNSDeleteTopicAction.class);
public CNSDeleteTopicAction() {
super("DeleteTopic");
}
/**
* Delete the topic with the topicArn in the request variable "TopicArn". Send the response out as XML to response.
* @param user The user who owns the topic we are deleting
* @param asyncContext
*/
@Override
public boolean doAction(User user, AsyncContext asyncContext) throws Exception {
HttpServletRequest request = (HttpServletRequest)asyncContext.getRequest();
HttpServletResponse response = (HttpServletResponse)asyncContext.getResponse();
String arn = request.getParameter("TopicArn");
String userId = user.getUserId();
logger.debug("event=cns_topic_delete arn=" + arn + " userid=" + userId);
if ((arn == null) || (userId == null)) {
logger.error("event=cns_topic_delete errro_code=InvalidParameters topic_arn=" + arn + " user_id=" + userId);
throw new CMBException(CNSErrorCodes.CNS_InvalidParameter,"request parameter does not comply with the associated constraints.");
}
PersistenceFactory.getTopicPersistence().deleteTopic(arn);
String out = CNSTopicPopulator.getDeleteTopicResponse();
writeResponse(out, response);
return true;
}
}