/*
* 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.redis.internal.executor.sortedset;
import java.util.List;
import org.apache.geode.cache.Region;
import org.apache.geode.redis.internal.ByteArrayWrapper;
import org.apache.geode.redis.internal.Coder;
import org.apache.geode.redis.internal.Command;
import org.apache.geode.redis.internal.DoubleWrapper;
import org.apache.geode.redis.internal.ExecutionHandlerContext;
import org.apache.geode.redis.internal.RedisConstants.ArityDef;
import org.apache.geode.redis.internal.RedisDataType;
public class ZCardExecutor extends SortedSetExecutor {
private final int NOT_EXISTS = 0;
@Override
public void executeCommand(Command command, ExecutionHandlerContext context) {
List<byte[]> commandElems = command.getProcessedCommand();
if (commandElems.size() < 2) {
command.setResponse(Coder.getErrorResponse(context.getByteBufAllocator(), ArityDef.ZCARD));
return;
}
ByteArrayWrapper key = command.getKey();
Region<ByteArrayWrapper, DoubleWrapper> keyRegion = getRegion(context, key);
checkDataType(key, RedisDataType.REDIS_SORTEDSET, context);
if (keyRegion == null)
command.setResponse(Coder.getIntegerResponse(context.getByteBufAllocator(), NOT_EXISTS));
else
command
.setResponse(Coder.getIntegerResponse(context.getByteBufAllocator(), keyRegion.size()));
}
}