ByteArrayDataSource


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37  
38  package com.sun.j2ee.blueprints.opc.mailer;
39  
40  
41  import java.io.*;
42  import java.util.Date  ;
43  import javax.activation.DataSource  ;
44  
45  
46  /**
47   * Used to create a DataSource for the mail message.
48   * @see MailHelper
49   */
50  class ByteArrayDataSource implements DataSource   {
51      private byte[] data; // data for mail message
52      private String   type; // content type/mime type
53  
54     /**
55      * Create a DataSource from a String
56      * @param data is the contents of the mail message
57      * @param type is the mime-type such as text/html
58      */
59      ByteArrayDataSource(String   data, String   type) {
60          try {
61             this.data = data.getBytes("UTF-8");
62          } catch (UnsupportedEncodingException uex) { }
63          this.type = type;
64      }
65  
66      //DataSource interface methods
67  
68      public InputStream getInputStream() throws IOException {
69          if (data == null)
70              throw new IOException("no data");
71          return new ByteArrayInputStream(data);
72      }
73  
74      public OutputStream getOutputStream() throws IOException {
75          throw new IOException("cannot do this");
76      }
77  
78      public String   getContentType() {
79          return type;
80      }
81  
82      public String   getName() {
83          return "dummy";
84      }
85  }
86  
87  
88
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