/*
* 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 org.apache.geode.cache.RegionDestroyedException;
import org.apache.geode.distributed.internal.DistributionStats;
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.security.GemFireSecurityException;
public class Size extends BaseCommand {
private final static Size singleton = new Size();
private Size() {}
public static Command getCommand() {
return singleton;
}
private static void writeSizeResponse(Integer sizeCount, Message origMsg,
ServerConnection servConn) throws IOException {
Message responseMsg = servConn.getResponseMessage();
responseMsg.setMessageType(MessageType.RESPONSE);
responseMsg.setNumberOfParts(1);
responseMsg.setTransactionId(origMsg.getTransactionId());
responseMsg.addObjPart(sizeCount);
responseMsg.send(servConn);
}
@Override
public void cmdExecute(Message msg, ServerConnection servConn, long start)
throws IOException, InterruptedException {
StringBuilder errMessage = new StringBuilder();
CachedRegionHelper crHelper = servConn.getCachedRegionHelper();
CacheServerStats stats = servConn.getCacheServerStats();
servConn.setAsTrue(REQUIRES_RESPONSE);
long oldStart = start;
start = DistributionStats.getStatTime();
stats.incReadSizeRequestTime(start - oldStart);
// Retrieve the data from the message parts
Part regionNamePart = msg.getPart(0);
String regionName = regionNamePart.getString();
if (regionName == null) {
logger.warn(LocalizedMessage.create(
LocalizedStrings.BaseCommand__THE_INPUT_REGION_NAME_FOR_THE_0_REQUEST_IS_NULL, "size"));
errMessage
.append(LocalizedStrings.BaseCommand__THE_INPUT_REGION_NAME_FOR_THE_0_REQUEST_IS_NULL
.toLocalizedString("size"));
writeErrorResponse(msg, MessageType.SIZE_ERROR, errMessage.toString(), servConn);
servConn.setAsTrue(RESPONDED);
return;
}
LocalRegion region = (LocalRegion) crHelper.getRegion(regionName);
if (region == null) {
String reason = LocalizedStrings.BaseCommand__0_WAS_NOT_FOUND_DURING_1_REQUEST
.toLocalizedString(regionName, "size");
writeRegionDestroyedEx(msg, regionName, reason, servConn);
servConn.setAsTrue(RESPONDED);
return;
}
// Size the entry
try {
this.securityService.authorizeRegionRead(regionName);
writeSizeResponse(region.size(), msg, servConn);
} catch (RegionDestroyedException rde) {
writeException(msg, rde, false, servConn);
} catch (Exception e) {
// If an interrupted exception is thrown , rethrow it
checkForInterrupt(servConn, e);
// If an exception occurs during the destroy, preserve the connection
writeException(msg, e, false, servConn);
if (e instanceof GemFireSecurityException) {
// Fine logging for security exceptions since these are already
// logged by the security logger
if (logger.isDebugEnabled()) {
logger.debug("{}: Unexpected Security exception", servConn.getName(), e);
}
} else {
logger.warn(LocalizedMessage.create(LocalizedStrings.BaseCommand_0_UNEXPECTED_EXCEPTION,
servConn.getName()), e);
}
} finally {
if (logger.isDebugEnabled()) {
logger.debug("{}: Sent size response for region {}", servConn.getName(), regionName);
}
servConn.setAsTrue(RESPONDED);
stats.incWriteSizeResponseTime(DistributionStats.getStatTime() - start);
}
}
}