| /* |
| * 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.*; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.cassandra.db.filter.IDiskAtomFilter; |
| import org.apache.cassandra.io.IVersionedSerializer; |
| import org.apache.cassandra.service.StorageService; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| |
| public class Row |
| { |
| public static final RowSerializer serializer = new RowSerializer(); |
| |
| public final DecoratedKey key; |
| public final ColumnFamily cf; |
| |
| public Row(DecoratedKey key, ColumnFamily cf) |
| { |
| assert key != null; |
| // cf may be null, indicating no data |
| this.key = key; |
| this.cf = cf; |
| } |
| |
| public Row(ByteBuffer key, ColumnFamily updates) |
| { |
| this(StorageService.getPartitioner().decorateKey(key), updates); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "Row(" + |
| "key=" + key + |
| ", cf=" + cf + |
| ')'; |
| } |
| |
| public int getLiveCount(IDiskAtomFilter filter, long now) |
| { |
| return cf == null ? 0 : filter.getLiveCount(cf, now); |
| } |
| |
| public static class RowSerializer implements IVersionedSerializer<Row> |
| { |
| public void serialize(Row row, DataOutput out, int version) throws IOException |
| { |
| ByteBufferUtil.writeWithShortLength(row.key.key, out); |
| ColumnFamily.serializer.serialize(row.cf, out, version); |
| } |
| |
| public Row deserialize(DataInput in, int version, ColumnSerializer.Flag flag) throws IOException |
| { |
| return new Row(StorageService.getPartitioner().decorateKey(ByteBufferUtil.readWithShortLength(in)), |
| ColumnFamily.serializer.deserialize(in, flag, version)); |
| } |
| |
| public Row deserialize(DataInput in, int version) throws IOException |
| { |
| return deserialize(in, version, ColumnSerializer.Flag.LOCAL); |
| } |
| |
| public long serializedSize(Row row, int version) |
| { |
| int keySize = row.key.key.remaining(); |
| return TypeSizes.NATIVE.sizeof((short) keySize) + keySize + ColumnFamily.serializer.serializedSize(row.cf, TypeSizes.NATIVE, version); |
| } |
| } |
| } |