geode-memcached/src/main/java/org/apache/geode/internal/memcached/commands/StatsCommand.java

/*
 * 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.memcached.commands;

import java.nio.ByteBuffer;

import org.apache.geode.cache.Cache;
import org.apache.geode.internal.memcached.Reply;
import org.apache.geode.internal.memcached.RequestReader;
import org.apache.geode.memcached.GemFireMemcachedServer.Protocol;

/**
 * This command is currently no-op.<br/>
 *
 * The command "stats" is used to query the server about statistics it maintains and other internal
 * data. It has two forms. Without arguments:
 *
 * stats\r\n it causes the server to output general-purpose statistics
 *
 *
 */
public class StatsCommand extends AbstractCommand {

  @Override
  public ByteBuffer processCommand(RequestReader request, Protocol protocol, Cache cache) {
    if (protocol == Protocol.ASCII) {
      return asciiCharset.encode(Reply.END.toString());
    }
    request.getRequest().position(HEADER_LENGTH);
    return request.getResponse();
  }

}