/*
* 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.geode.internal.cache.tier.sockets.command;
import java.io.IOException;
import java.nio.ByteBuffer;
import org.apache.geode.cache.operations.RegionDestroyOperationContext;
import org.apache.geode.distributed.DistributedSystemDisconnectedException;
import org.apache.geode.distributed.internal.DistributionStats;
import org.apache.geode.internal.cache.EventID;
import org.apache.geode.internal.cache.LocalRegion;
import org.apache.geode.internal.cache.tier.CachedRegionHelper;
import org.apache.geode.internal.cache.tier.Command;
import org.apache.geode.internal.cache.tier.MessageType;
import org.apache.geode.internal.cache.tier.sockets.BaseCommand;
import org.apache.geode.internal.cache.tier.sockets.CacheServerStats;
import org.apache.geode.internal.cache.tier.sockets.Message;
import org.apache.geode.internal.cache.tier.sockets.Part;
import org.apache.geode.internal.cache.tier.sockets.ServerConnection;
import org.apache.geode.internal.i18n.LocalizedStrings;
import org.apache.geode.internal.logging.log4j.LocalizedMessage;
import org.apache.geode.internal.security.AuthorizeRequest;
import org.apache.geode.internal.security.SecurityService;
public class DestroyRegion extends BaseCommand {
private final static DestroyRegion singleton = new DestroyRegion();
public static Command getCommand() {
return singleton;
}
@Override
public void cmdExecute(Message msg, ServerConnection servConn, long start)
throws IOException, InterruptedException {
Part regionNamePart = null, callbackArgPart = null;
String regionName = null;
Object callbackArg = null;
Part eventPart = null;
StringBuffer errMessage = new StringBuffer();
CacheServerStats stats = servConn.getCacheServerStats();
servConn.setAsTrue(REQUIRES_RESPONSE);
{
long oldStart = start;
start = DistributionStats.getStatTime();
stats.incReadDestroyRegionRequestTime(start - oldStart);
}
// Retrieve the data from the message parts
regionNamePart = msg.getPart(0);
eventPart = msg.getPart(1);
// callbackArgPart = null; (redundant assignment)
if (msg.getNumberOfParts() > 2) {
callbackArgPart = msg.getPart(2);
try {
callbackArg = callbackArgPart.getObject();
} catch (DistributedSystemDisconnectedException se) {
// FIXME this can't happen
if (logger.isDebugEnabled()) {
logger.debug(
"{} ignoring message of type {} from client {} because shutdown occurred during message processing.",
servConn.getName(), MessageType.getString(msg.getMessageType()),
servConn.getProxyID());
}
servConn.setFlagProcessMessagesAsFalse();
servConn.setClientDisconnectedException(se);
return;
} catch (Exception e) {
writeException(msg, e, false, servConn);
servConn.setAsTrue(RESPONDED);
return;
}
}
regionName = regionNamePart.getString();
if (logger.isDebugEnabled()) {
logger.debug("{}: Received destroy region request ({} bytes) from {} for region {}",
servConn.getName(), msg.getPayloadLength(), servConn.getSocketString(), regionName);
}
// Process the destroy region request
if (regionName == null) {
logger.warn(LocalizedMessage.create(
LocalizedStrings.DestroyRegion_0_THE_INPUT_REGION_NAME_FOR_THE_DESTROY_REGION_REQUEST_IS_NULL,
servConn.getName()));
errMessage.append(
LocalizedStrings.DestroyRegion__THE_INPUT_REGION_NAME_FOR_THE_DESTROY_REGION_REQUEST_IS_NULL
.toLocalizedString());
writeErrorResponse(msg, MessageType.DESTROY_REGION_DATA_ERROR, errMessage.toString(),
servConn);
servConn.setAsTrue(RESPONDED);
return;
}
LocalRegion region = (LocalRegion) servConn.getCache().getRegion(regionName);
if (region == null) {
String reason =
LocalizedStrings.DestroyRegion_REGION_WAS_NOT_FOUND_DURING_DESTROY_REGION_REQUEST
.toLocalizedString();
writeRegionDestroyedEx(msg, regionName, reason, servConn);
servConn.setAsTrue(RESPONDED);
return;
}
// Destroy the region
ByteBuffer eventIdPartsBuffer = ByteBuffer.wrap(eventPart.getSerializedForm());
long threadId = EventID.readEventIdPartsFromOptmizedByteArray(eventIdPartsBuffer);
long sequenceId = EventID.readEventIdPartsFromOptmizedByteArray(eventIdPartsBuffer);
EventID eventId = new EventID(servConn.getEventMemberIDByteArray(), threadId, sequenceId);
try {
// user needs to have data:manage on all regions in order to destory a particular region
this.securityService.authorizeDataManage();
AuthorizeRequest authzRequest = servConn.getAuthzRequest();
if (authzRequest != null) {
RegionDestroyOperationContext destroyContext =
authzRequest.destroyRegionAuthorize(regionName, callbackArg);
callbackArg = destroyContext.getCallbackArg();
}
// region.destroyRegion(callbackArg);
region.basicBridgeDestroyRegion(callbackArg, servConn.getProxyID(),
true /* boolean from cache Client */, eventId);
} catch (DistributedSystemDisconnectedException e) {
// FIXME better exception hierarchy would avoid this check
if (servConn.getCachedRegionHelper().getCache().getCancelCriterion()
.cancelInProgress() != null) {
if (logger.isDebugEnabled()) {
logger.debug(
"{} ignoring message of type {} from client {} because shutdown occurred during message processing.",
servConn.getName(), MessageType.getString(msg.getMessageType()),
servConn.getProxyID());
}
servConn.setFlagProcessMessagesAsFalse();
servConn.setClientDisconnectedException(e);
} else {
writeException(msg, e, false, servConn);
servConn.setAsTrue(RESPONDED);
}
return;
} catch (Exception e) {
// If an interrupted exception is thrown , rethrow it
checkForInterrupt(servConn, e);
// Otherwise, write an exception message and continue
writeException(msg, e, false, servConn);
servConn.setAsTrue(RESPONDED);
return;
}
// Update the statistics and write the reply
{
long oldStart = start;
start = DistributionStats.getStatTime();
stats.incProcessDestroyRegionTime(start - oldStart);
}
writeReply(msg, servConn);
servConn.setAsTrue(RESPONDED);
if (logger.isDebugEnabled()) {
logger.debug("{}: Sent destroy region response for region {}", servConn.getName(),
regionName);
}
stats.incWriteDestroyRegionResponseTime(DistributionStats.getStatTime() - start);
}
}