KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > StringContent


1 /*
2  * @(#)StringContent.java 1.3 05/11/17
3  *
4  * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are met:
8  *
9  * -Redistribution of source code must retain the above copyright notice, this
10  * list of conditions and the following disclaimer.
11  *
12  * -Redistribution in binary form must reproduce the above copyright notice,
13  * this list of conditions and the following disclaimer in the documentation
14  * and/or other materials provided with the distribution.
15  *
16  * Neither the name of Sun Microsystems, Inc. or the names of contributors may
17  * be used to endorse or promote products derived from this software without
18  * specific prior written permission.
19  *
20  * This software is provided "AS IS," without a warranty of any kind. ALL
21  * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
22  * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
23  * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
24  * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
25  * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
26  * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
27  * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
28  * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
29  * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
30  * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
31  *
32  * You acknowledge that this software is not designed, licensed or intended
33  * for use in the design, construction, operation or maintenance of any
34  * nuclear facility.
35  */
36
37 import java.io.*;
38 import java.nio.*;
39 import java.nio.charset.*;
40
41 /**
42  * A Content type that provides for transferring Strings.
43  *
44  * @author Mark Reinhold
45  * @author Brad R. Wetmore
46  * @version 1.3, 05/11/17
47  */
48 class StringContent implements Content {
49
50     private static Charset ascii = Charset.forName("US-ASCII");
51
52     private String JavaDoc type; // MIME type
53 private String JavaDoc content;
54
55     StringContent(CharSequence JavaDoc c, String JavaDoc t) {
56     content = c.toString();
57     if (!content.endsWith("\n"))
58         content += "\n";
59     type = t + "; charset=iso-8859-1";
60     }
61
62     StringContent(CharSequence JavaDoc c) {
63     this(c, "text/plain");
64     }
65
66     StringContent(Exception JavaDoc x) {
67     StringWriter sw = new StringWriter();
68     x.printStackTrace(new PrintWriter(sw));
69     type = "text/plain; charset=iso-8859-1";
70     content = sw.toString();
71     }
72
73     public String JavaDoc type() {
74     return type;
75     }
76
77     private ByteBuffer bb = null;
78
79     private void encode() {
80     if (bb == null)
81         bb = ascii.encode(CharBuffer.wrap(content));
82     }
83
84     public long length() {
85     encode();
86     return bb.remaining();
87     }
88
89     public void prepare() {
90     encode();
91     bb.rewind();
92     }
93
94     public boolean send(ChannelIO cio) throws IOException {
95     if (bb == null)
96         throw new IllegalStateException JavaDoc();
97     cio.write(bb);
98
99     return bb.hasRemaining();
100     }
101
102     public void release() throws IOException {
103     }
104 }
105
Popular Tags