/**
* 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.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang.StringUtils;
import org.apache.cassandra.io.util.DataOutputBuffer;
import org.apache.cassandra.io.util.FastByteArrayInputStream;
import org.apache.cassandra.net.Message;
import org.apache.cassandra.utils.FBUtilities;
public class RangeSliceReply
{
public final List<Row> rows;
public RangeSliceReply(List<Row> rows)
{
this.rows = rows;
}
public Message getReply(Message originalMessage) throws IOException
{
int size = DBConstants.intSize;
for (Row row : rows)
size += Row.serializer().serializedSize(row, originalMessage.getVersion());
DataOutputBuffer buffer = new DataOutputBuffer(size);
buffer.writeInt(rows.size());
for (Row row : rows)
Row.serializer().serialize(row, buffer, originalMessage.getVersion());
assert buffer.getLength() == buffer.getData().length;
return originalMessage.getReply(FBUtilities.getBroadcastAddress(), buffer.getData(), originalMessage.getVersion());
}
@Override
public String toString()
{
return "RangeSliceReply{" +
"rows=" + StringUtils.join(rows, ",") +
'}';
}
public static RangeSliceReply read(byte[] body, int version) throws IOException
{
FastByteArrayInputStream bufIn = new FastByteArrayInputStream(body);
DataInputStream dis = new DataInputStream(bufIn);
int rowCount = dis.readInt();
List<Row> rows = new ArrayList<Row>(rowCount);
for (int i = 0; i < rowCount; i++)
{
rows.add(Row.serializer().deserialize(dis, version));
}
return new RangeSliceReply(rows);
}
}