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1   /*
2    * Copyright 2005-2010 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.ws.transport.xmpp;
18  
19  import java.io.ByteArrayInputStream;
20  import java.io.FilterInputStream;
21  import java.io.IOException;
22  import java.io.InputStream;
23  
24  import org.springframework.util.Assert;
25  
26  import org.jivesoftware.smack.packet.Message;
27  
28  /**
29   * Input stream that wraps a [email protected] Message}.
30   *
31   * @author Gildas Cuisinier
32   * @author Arjen Poutsma
33   * @since 2.0
34   */
35  class MessageInputStream extends FilterInputStream {
36  
37      MessageInputStream(Message message, String encoding) throws IOException {
38          super(createInputStream(message, encoding));
39      }
40  
41      private static InputStream createInputStream(Message message, String encoding) throws IOException {
42          Assert.notNull(message, "'message' must not be null");
43          Assert.notNull(encoding, "'encoding' must not be null");
44          String text = message.getBody();
45          byte[] contents = text != null ? text.getBytes(encoding) : new byte[0];
46          return new ByteArrayInputStream(contents);
47      }
48  
49  
50  }