Package org.apache.cassandra.db

Source Code of org.apache.cassandra.db.TruncateResponse

/**
* 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.cassandra.db;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import org.apache.cassandra.io.ICompactSerializer;
import org.apache.cassandra.io.util.FastByteArrayOutputStream;
import org.apache.cassandra.net.Message;
import org.apache.cassandra.utils.FBUtilities;


/**
* This message is sent back the truncate operation and basically specifies if
* the truncate succeeded.
*/
public class TruncateResponse
{
    private static TruncateResponseSerializer serializer_ = new TruncateResponseSerializer();

    public static TruncateResponseSerializer serializer()
    {
        return serializer_;
    }

    public final String keyspace;
    public final String columnFamily;
    public final boolean success;


    public static Message makeTruncateResponseMessage(Message original, TruncateResponse truncateResponseMessage)
            throws IOException
    {
      FastByteArrayOutputStream bos = new FastByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(bos);
        TruncateResponse.serializer().serialize(truncateResponseMessage, dos, original.getVersion());
        return original.getReply(FBUtilities.getBroadcastAddress(), bos.toByteArray(), original.getVersion());
    }

    public TruncateResponse(String keyspace, String columnFamily, boolean success) {
    this.keyspace = keyspace;
    this.columnFamily = columnFamily;
    this.success = success;
  }

    public static class TruncateResponseSerializer implements ICompactSerializer<TruncateResponse>
    {
        public void serialize(TruncateResponse tr, DataOutputStream dos, int version) throws IOException
        {
            dos.writeUTF(tr.keyspace);
            dos.writeUTF(tr.columnFamily);
            dos.writeBoolean(tr.success);
        }

        public TruncateResponse deserialize(DataInputStream dis, int version) throws IOException
        {
            String keyspace = dis.readUTF();
            String columnFamily = dis.readUTF();
            boolean success = dis.readBoolean();
            return new TruncateResponse(keyspace, columnFamily, success);
        }
    }
}
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