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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.memcached.commands;
import java.nio.ByteBuffer;
import com.gemstone.gemfire.cache.Cache;
import com.gemstone.gemfire.internal.memcached.RequestReader;
import com.gemstone.gemfire.memcached.GemFireMemcachedServer;
import com.gemstone.gemfire.memcached.GemFireMemcachedServer.Protocol;
/**
* Sends current version of gemcached server to the client
*
* @author Swapnil Bawaskar
*
*/
public class VersionCommand extends AbstractCommand {
@Override
public ByteBuffer processCommand(RequestReader request, Protocol protocol, Cache cache) {
String version = GemFireMemcachedServer.version;
if (protocol == Protocol.ASCII) {
return asciiCharset.encode("VERSION "+version+"\r\n");
}
ByteBuffer response = request.getResponse(HEADER_LENGTH + version.length());
response.putInt(TOTAL_BODY_LENGTH_INDEX, version.length());
response.position(HEADER_LENGTH);
response.put(asciiCharset.encode(version));
response.rewind();
request.getRequest().position(HEADER_LENGTH);
return response;
}
}