1 /*
2 * Copyright 2002-2014 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
17 package org.springframework.core.serializer.support;
18
19 import java.io.ByteArrayOutputStream;
20
21 import org.springframework.core.convert.converter.Converter;
22 import org.springframework.core.serializer.DefaultSerializer;
23 import org.springframework.core.serializer.Serializer;
24 import org.springframework.util.Assert;
25
26 /**
27 * A {@link Converter} that delegates to a {@link org.springframework.core.serializer.Serializer}
28 * to convert an object to a byte array.
29 *
30 * @author Gary Russell
31 * @author Mark Fisher
32 * @since 3.0.5
33 */
34 public class SerializingConverter implements Converter<Object, byte[]> {
35
36 private final Serializer<Object> serializer;
37
38
39 /**
40 * Create a default SerializingConverter that uses standard Java serialization.
41 */
42 public SerializingConverter() {
43 this.serializer = new DefaultSerializer();
44 }
45
46 /**
47 * Create a SerializingConverter that delegates to the provided {@link Serializer}
48 */
49 public SerializingConverter(Serializer<Object> serializer) {
50 Assert.notNull(serializer, "Serializer must not be null");
51 this.serializer = serializer;
52 }
53
54
55 /**
56 * Serializes the source object and returns the byte array result.
57 */
58 @Override
59 public byte[] convert(Object source) {
60 ByteArrayOutputStream byteStream = new ByteArrayOutputStream(256);
61 try {
62 this.serializer.serialize(source, byteStream);
63 return byteStream.toByteArray();
64 }
65 catch (Throwable ex) {
66 throw new SerializationFailedException("Failed to serialize object using " +
67 this.serializer.getClass().getSimpleName(), ex);
68 }
69 }
70
71 }