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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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