com.gemstone.gemfire.internal.cache.tier.sockets.command.CloseCQ Maven / Gradle / Ivy
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* Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* 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. See accompanying
* LICENSE file.
*/
/**
*
*/
package com.gemstone.gemfire.internal.cache.tier.sockets.command;
import com.gemstone.gemfire.internal.cache.tier.CachedRegionHelper;
import com.gemstone.gemfire.internal.cache.tier.Command;
import com.gemstone.gemfire.internal.cache.tier.MessageType;
import com.gemstone.gemfire.internal.cache.tier.sockets.*;
import com.gemstone.gemfire.cache.query.CqException;
import com.gemstone.gemfire.cache.query.CqQuery;
import com.gemstone.gemfire.distributed.internal.DistributionStats;
import com.gemstone.gemfire.cache.query.internal.CqQueryImpl;
import com.gemstone.gemfire.cache.query.internal.CqService;
import com.gemstone.gemfire.cache.query.internal.DefaultQueryService;
import com.gemstone.gemfire.internal.cache.tier.sockets.ClientProxyMembershipID;
import com.gemstone.gemfire.internal.i18n.LocalizedStrings;
import com.gemstone.gemfire.internal.security.AuthorizeRequest;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
public class CloseCQ extends BaseCommand {
private final static CloseCQ singleton = new CloseCQ();
public static Command getCommand() {
return singleton;
}
private CloseCQ() {
}
@Override
public void cmdExecute(Message msg, ServerConnection servConn, long start)
throws IOException {
CachedRegionHelper crHelper = servConn.getCachedRegionHelper();
ClientProxyMembershipID id = servConn.getProxyID();
CacheServerStats stats = servConn.getCacheServerStats();
// Based on MessageType.QUERY
// Added by Rao 2/1/2007
servConn.setAsTrue(REQUIRES_RESPONSE);
servConn.setAsTrue(REQUIRES_CHUNKED_RESPONSE);
start = DistributionStats.getStatTime();
// Retrieve the data from the message parts
String cqName = msg.getPart(0).getString();
if (logger.fineEnabled()) {
logger.fine(servConn.getName() + ": Received close CQ request from "
+ servConn.getSocketString() + " cqName: " + cqName);
}
// Process the query request
if (cqName == null) {
String err = LocalizedStrings.CloseCQ_THE_CQNAME_FOR_THE_CQ_CLOSE_REQUEST_IS_NULL.toLocalizedString();
sendCqResponse(MessageType.CQDATAERROR_MSG_TYPE, err, msg
.getTransactionId(), null, servConn);
return;
}
// Process CQ close request
try {
// Append Client ID to CQ name
CqService cqService = CqService.getCqService(crHelper.getCache());
String serverCqName = cqName;
if (id != null) {
serverCqName = cqService.constructServerCqName(cqName, id);
}
CqQuery cqQuery = cqService.getCq(serverCqName);
AuthorizeRequest authzRequest = servConn.getAuthzRequest();
if (authzRequest != null) {
String queryStr = null;
Set cqRegionNames = null;
if (cqQuery != null) {
queryStr = cqQuery.getQueryString();
cqRegionNames = new HashSet();
cqRegionNames.add(((CqQueryImpl)cqQuery).getRegionName());
authzRequest.closeCQAuthorize(cqName, queryStr, cqRegionNames);
}
}
// String cqNameWithClientId = new String(cqName + "__" +
// getMembershipID());
cqService.closeCq(cqName, id);
if(cqQuery != null)
servConn.removeCq(cqName, cqQuery.isDurable());
}
catch (CqException cqe) {
sendCqResponse(MessageType.CQ_EXCEPTION_TYPE, "", msg.getTransactionId(),
cqe, servConn);
return;
}
catch (Exception e) {
String err = LocalizedStrings.CloseCQ_EXCEPTION_WHILE_CLOSING_CQ_CQNAME_0.toLocalizedString(cqName);
sendCqResponse(MessageType.CQ_EXCEPTION_TYPE, err,
msg.getTransactionId(), e, servConn);
return;
}
// Send OK to client
sendCqResponse(MessageType.REPLY, LocalizedStrings.CloseCQ_CQ_CLOSED_SUCCESSFULLY.toLocalizedString(), msg.getTransactionId(), null, servConn);
servConn.setAsTrue(RESPONDED);
{
long oldStart = start;
start = DistributionStats.getStatTime();
stats.incProcessCloseCqTime(start - oldStart);
}
}
}