| /** |
| * 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 storm.kafka; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import backtype.storm.spout.SchemeAsMultiScheme; |
| |
| public class MessageMetadataSchemeAsMultiScheme extends SchemeAsMultiScheme { |
| private static final long serialVersionUID = -7172403703813625116L; |
| |
| public MessageMetadataSchemeAsMultiScheme(MessageMetadataScheme scheme) { |
| super(scheme); |
| } |
| |
| public Iterable<List<Object>> deserializeMessageWithMetadata(ByteBuffer message, Partition partition, long offset) { |
| List<Object> o = ((MessageMetadataScheme) scheme).deserializeMessageWithMetadata(message, partition, offset); |
| if (o == null) { |
| return null; |
| } else { |
| return Arrays.asList(o); |
| } |
| } |
| } |