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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  package org.apache.http.entity.mime.content;
28  
29  import java.io.IOException;
30  import java.io.OutputStream;
31  
32  import org.apache.http.entity.mime.MIME;
33  import org.apache.http.entity.mime.content.AbstractContentBody;
34  
35  /**
36   * Body part that is built using a byte array containing a file.
37   *
38   * @since 4.1
39   */
40  public class ByteArrayBody extends AbstractContentBody {
41  
42      /**
43       * The contents of the file contained in this part.
44       */
45      private final byte[] data;
46  
47      /**
48       * The name of the file contained in this part.
49       */
50      private final String filename;
51  
52      /**
53       * Creates a new ByteArrayBody.
54       *
55       * @param data The contents of the file contained in this part.
56       * @param mimeType The mime type of the file contained in this part.
57       * @param filename The name of the file contained in this part.
58       */
59      public ByteArrayBody(final byte[] data, final String mimeType, final String filename) {
60          super(mimeType);
61          if (data == null) {
62              throw new IllegalArgumentException("byte[] may not be null");
63          }
64          this.data = data;
65          this.filename = filename;
66      }
67  
68      /**
69       * Creates a new ByteArrayBody.
70       *
71       * @param data The contents of the file contained in this part.
72       * @param filename The name of the file contained in this part.
73       */
74      public ByteArrayBody(final byte[] data, final String filename) {
75          this(data, "application/octet-stream", filename);
76      }
77  
78      public String getFilename() {
79          return filename;
80      }
81  
82      public void writeTo(final OutputStream out) throws IOException {
83          out.write(data);
84      }
85  
86      public String getCharset() {
87          return null;
88      }
89  
90      public String getTransferEncoding() {
91          return MIME.ENC_BINARY;
92      }
93  
94      public long getContentLength() {
95          return data.length;
96      }
97  
98  }