/**
* 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.net.MessageProducer;
import org.apache.cassandra.service.StorageService;
import org.apache.cassandra.utils.FBUtilities;
/**
* A truncate operation descriptor
*/
public class Truncation implements MessageProducer
{
private static ICompactSerializer<Truncation> serializer;
public final String keyspace;
public final String columnFamily;
static
{
serializer = new TruncationSerializer();
}
public static ICompactSerializer<Truncation> serializer()
{
return serializer;
}
public Truncation(String keyspace, String columnFamily)
{
this.keyspace = keyspace;
this.columnFamily = columnFamily;
}
public Message getMessage(Integer version) throws IOException
{
FastByteArrayOutputStream bos = new FastByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
serializer().serialize(this, dos, version);
return new Message(FBUtilities.getBroadcastAddress(), StorageService.Verb.TRUNCATE, bos.toByteArray(), version);
}
public String toString()
{
return "Truncation(" + "keyspace='" + keyspace + '\'' + ", cf='" + columnFamily + "\')";
}
}
class TruncationSerializer implements ICompactSerializer<Truncation>
{
public void serialize(Truncation t, DataOutputStream dos, int version) throws IOException
{
dos.writeUTF(t.keyspace);
dos.writeUTF(t.columnFamily);
}
public Truncation deserialize(DataInputStream dis, int version) throws IOException
{
String keyspace = dis.readUTF();
String columnFamily = dis.readUTF();
return new Truncation(keyspace, columnFamily);
}
}