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com.ozacc.mail.impl.ByteArrayDataSource |
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1 | package com.ozacc.mail.impl; |
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2 | ||
3 | /* |
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4 | * @(#)ByteArrayDataSource.java 1.4 01/05/23 |
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5 | * |
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6 | * Copyright 1998-2000 Sun Microsystems, Inc. All Rights Reserved. |
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7 | * |
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8 | * Redistribution and use in source and binary forms, with or without |
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9 | * modification, are permitted provided that the following conditions |
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10 | * are met: |
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11 | * |
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12 | * - Redistributions of source code must retain the above copyright |
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13 | * notice, this list of conditions and the following disclaimer. |
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14 | * |
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15 | * - Redistribution in binary form must reproduce the above copyright |
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16 | * notice, this list of conditions and the following disclaimer in the |
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17 | * documentation and/or other materials provided with the distribution. |
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18 | * |
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19 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
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20 | * may be used to endorse or promote products derived from this software |
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21 | * without specific prior written permission. |
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22 | * |
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23 | * This software is provided "AS IS," without a warranty of any kind. ALL |
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24 | * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
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25 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
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26 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND |
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27 | * ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES OR LIABILITIES |
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28 | * SUFFERED BY LICENSEE AS A RESULT OF OR RELATING TO USE, MODIFICATION |
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29 | * OR DISTRIBUTION OF THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL |
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30 | * SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR |
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31 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE |
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32 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, |
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33 | * ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS |
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34 | * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
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35 | * |
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36 | * You acknowledge that Software is not designed, licensed or intended |
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37 | * for use in the design, construction, operation or maintenance of any |
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38 | * nuclear facility. |
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39 | */ |
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40 | ||
41 | import java.io.ByteArrayInputStream; |
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42 | import java.io.ByteArrayOutputStream; |
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43 | import java.io.IOException; |
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44 | import java.io.InputStream; |
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45 | import java.io.OutputStream; |
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46 | import java.io.UnsupportedEncodingException; |
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47 | ||
48 | import javax.activation.DataSource; |
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49 | ||
50 | /** |
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51 | * InputStream¡¢byte array¡¢String¤«¤éDataSource¥¤¥ó¥¹¥¿¥ó¥¹¤òÀ¸À®¤¹¤?¥¯¥é¥¹¡£<br> |
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52 | * JavaMail¥Ñ¥Ã¥±¡¼¥¸ÉÕ°ÉÊ¡£ |
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53 | * <p> |
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54 | * <strong>Ã?:</strong> ¤³¤Î¥¯¥é¥¹¤Ïpublic¤Ç¤¹¤¬¡¢ozacc-mail library³°¤«¤é¤Ï»ÈÍѤ·¤Ê¤¤¤Ç¤¯¤À¤µ¤¤¡£ |
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55 | * |
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56 | * @since 1.1 |
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57 | * |
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58 | * @author John Mani |
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59 | * @author Bill Shannon |
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60 | * @author Max Spivak |
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61 | */ |
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62 | public class ByteArrayDataSource implements DataSource { |
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63 | ||
64 | private byte[] data; // data |
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65 | ||
66 | private String type; // content-type |
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67 | ||
68 | /* Create a DataSource from an input stream */ |
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69 | 0 | public ByteArrayDataSource(InputStream is, String type) { |
70 | 0 | this.type = type; |
71 | try { |
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72 | 0 | ByteArrayOutputStream os = new ByteArrayOutputStream(); |
73 | int ch; |
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74 | ||
75 | 0 | while ((ch = is.read()) != -1) |
76 | // XXX - must be made more efficient by |
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77 | // doing buffered reads, rather than one byte reads |
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78 | 0 | os.write(ch); |
79 | 0 | data = os.toByteArray(); |
80 | ||
81 | 0 | } catch (IOException ioex) {} |
82 | 0 | } |
83 | ||
84 | /* Create a DataSource from a byte array */ |
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85 | 0 | public ByteArrayDataSource(byte[] data, String type) { |
86 | 0 | this.data = data; |
87 | 0 | this.type = type; |
88 | 0 | } |
89 | ||
90 | /* Create a DataSource from a String */ |
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91 | 0 | public ByteArrayDataSource(String data, String type) { |
92 | try { |
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93 | // Assumption that the string contains only ASCII |
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94 | // characters! Otherwise just pass a charset into this |
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95 | // constructor and use it in getBytes() |
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96 | 0 | this.data = data.getBytes("iso-8859-1"); |
97 | 0 | } catch (UnsupportedEncodingException uex) {} |
98 | 0 | this.type = type; |
99 | 0 | } |
100 | ||
101 | /** |
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102 | * Return an InputStream for the data. |
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103 | * Note - a new stream must be returned each time. |
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104 | */ |
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105 | public InputStream getInputStream() throws IOException { |
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106 | 0 | if (data == null) |
107 | 0 | throw new IOException("no data"); |
108 | 0 | return new ByteArrayInputStream(data); |
109 | } |
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110 | ||
111 | public OutputStream getOutputStream() throws IOException { |
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112 | 0 | throw new IOException("cannot do this"); |
113 | } |
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114 | ||
115 | public String getContentType() { |
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116 | 0 | return type; |
117 | } |
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118 | ||
119 | public String getName() { |
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120 | 0 | return "dummy"; |
121 | } |
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122 | } |
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