1 package org.apache.turbine.util.mail;
2
3 /* ====================================================================
4 * The Apache Software License, Version 1.1
5 *
6 * Copyright (c) 2001 The Apache Software Foundation. All rights
7 * reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. The end-user documentation included with the redistribution,
22 * if any, must include the following acknowledgment:
23 * "This product includes software developed by the
24 * Apache Software Foundation (http://www.apache.org/)."
25 * Alternately, this acknowledgment may appear in the software itself,
26 * if and wherever such third-party acknowledgments normally appear.
27 *
28 * 4. The names "Apache" and "Apache Software Foundation" and
29 * "Apache Turbine" must not be used to endorse or promote products
30 * derived from this software without prior written permission. For
31 * written permission, please contact apache@apache.org.
32 *
33 * 5. Products derived from this software may not be called "Apache",
34 * "Apache Turbine", nor may "Apache" appear in their name, without
35 * prior written permission of the Apache Software Foundation.
36 *
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 * ====================================================================
50 *
51 * This software consists of voluntary contributions made by many
52 * individuals on behalf of the Apache Software Foundation. For more
53 * information on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57 import java.io.BufferedInputStream;
58 import java.io.BufferedOutputStream;
59 import java.io.ByteArrayInputStream;
60 import java.io.ByteArrayOutputStream;
61 import java.io.IOException;
62 import java.io.InputStream;
63 import java.io.OutputStream;
64 import java.io.UnsupportedEncodingException;
65
66 import javax.activation.DataSource;
67
68 /***
69 * This class implements a typed DataSource from:<br>
70 *
71 * - an InputStream<br>
72 * - a byte array<br>
73 * - a String<br>
74 *
75 * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a>
76 * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a>
77 * @version $Id: ByteArrayDataSource.java,v 1.1.1.1 2001/08/16 05:09:55 jvanzyl Exp $
78 */
79 public class ByteArrayDataSource
80 implements DataSource
81 {
82 /*** Data. */
83 private byte[] data;
84
85 /*** Content-type. */
86 private String type;
87
88 private ByteArrayOutputStream baos;
89
90
91 /***
92 * Create a datasource from a byte array.
93 *
94 * @param data A byte[].
95 * @param type A String.
96 */
97 public ByteArrayDataSource(byte[] data,
98 String type)
99 {
100 this.data = data;
101 this.type = type;
102 }
103
104 /***
105 * Create a datasource from an input stream.
106 *
107 * @param is An InputStream.
108 * @param type A String.
109 */
110 public ByteArrayDataSource(InputStream is,
111 String type)
112 {
113 this.type = type;
114 try
115 {
116 int ch;
117
118 ByteArrayOutputStream os = new ByteArrayOutputStream();
119 BufferedInputStream isReader = new BufferedInputStream( is );
120 BufferedOutputStream osWriter = new BufferedOutputStream( os );
121
122 while ((ch = isReader.read()) != -1)
123 {
124 osWriter.write(ch);
125 }
126 data = os.toByteArray();
127 }
128 catch (IOException ioex)
129 {
130 // Do something!
131 }
132 }
133
134 /***
135 * Create a datasource from a String.
136 *
137 * @param data A String.
138 * @param type A String.
139 */
140 public ByteArrayDataSource(String data,
141 String type)
142 {
143 this.type = type;
144 try
145 {
146 // Assumption that the string contains only ASCII
147 // characters! Else just pass in a charset into this
148 // constructor and use it in getBytes().
149 this.data = data.getBytes("iso-8859-1");
150 }
151 catch (UnsupportedEncodingException uex)
152 {
153 // Do something!
154 }
155 }
156
157 /***
158 * Get the content type.
159 *
160 * @return A String.
161 */
162 public String getContentType()
163 {
164 if ( type == null )
165 return "application/octet-stream";
166 else
167 return type;
168 }
169
170 /***
171 * Get the input stream.
172 *
173 * @return An InputStream.
174 * @exception IOException.
175 */
176 public InputStream getInputStream()
177 throws IOException
178 {
179 if (data == null)
180 throw new IOException("no data");
181 return new ByteArrayInputStream(data);
182 }
183
184 /***
185 * Get the name.
186 *
187 * @return A String.
188 */
189 public String getName()
190 {
191 return "ByteArrayDataSource";
192 }
193
194 /***
195 * Get the output stream.
196 *
197 * @return An OutputStream.
198 * @exception IOException.
199 */
200 public OutputStream getOutputStream()
201 throws IOException
202 {
203 baos = new ByteArrayOutputStream();
204 return baos;
205 }
206 }
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