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1   /*
2    * Copyright 2012-2013 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.springframework.batch.core.repository.dao;
17  
18  import java.io.IOException;
19  import java.io.InputStream;
20  import java.io.OutputStream;
21  
22  import org.springframework.batch.core.repository.ExecutionContextSerializer;
23  import org.springframework.core.serializer.DefaultDeserializer;
24  import org.springframework.core.serializer.DefaultSerializer;
25  import org.springframework.core.serializer.Deserializer;
26  import org.springframework.core.serializer.Serializer;
27  import org.springframework.util.Assert;
28  
29  /**
30   * An implementation of the {@link ExecutionContextSerializer} using the default
31   * serialization implementations from Spring ({@link DefaultSerializer} and
32   * {@link DefaultDeserializer}).
33   *
34   * @author Michael Minella
35   * @since 2.2
36   */
37  @SuppressWarnings("rawtypes")
38  public class DefaultExecutionContextSerializer implements ExecutionContextSerializer {
39  
40  	private Serializer serializer = new DefaultSerializer();
41  	private Deserializer deserializer = new DefaultDeserializer();
42  
43  	/**
44  	 * Serializes an execution context to the provided {@link OutputStream}.  The
45  	 * stream is not closed prior to it's return.
46  	 *
47  	 * @param context
48  	 * @param out
49  	 */
50  	@Override
51  	@SuppressWarnings("unchecked")
52  	public void serialize(Object context, OutputStream out) throws IOException {
53  		Assert.notNull(context);
54  		Assert.notNull(out);
55  
56  		serializer.serialize(context, out);
57  	}
58  
59  	/**
60  	 * Deserializes an execution context from the provided {@link InputStream}.
61  	 *
62  	 * @param inputStream
63  	 * @return the object serialized in the provided {@link InputStream}
64  	 */
65  	@Override
66  	public Object deserialize(InputStream inputStream) throws IOException {
67  		return deserializer.deserialize(inputStream);
68  	}
69  
70  }