1 // ========================================================================
2 // Copyright (c) 2004-2009 Mort Bay Consulting Pty. Ltd.
3 // ------------------------------------------------------------------------
4 // All rights reserved. This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v1.0
6 // and Apache License v2.0 which accompanies this distribution.
7 // The Eclipse Public License is available at
8 // http://www.eclipse.org/legal/epl-v10.html
9 // The Apache License v2.0 is available at
10 // http://www.opensource.org/licenses/apache2.0.php
11 // You may elect to redistribute this code under either of these licenses.
12 // ========================================================================
13
14 package org.eclipse.jetty.http;
15
16 import java.io.IOException;
17 import java.io.InputStream;
18
19 import org.eclipse.jetty.io.Buffer;
20 import org.eclipse.jetty.io.ByteArrayBuffer;
21 import org.eclipse.jetty.util.resource.Resource;
22
23 /* ------------------------------------------------------------ */
24 /** HttpContent.
25 *
26 *
27 */
28 public interface HttpContent
29 {
30 Buffer getContentType();
31 Buffer getLastModified();
32 Buffer getIndirectBuffer();
33 Buffer getDirectBuffer();
34 Resource getResource();
35 long getContentLength();
36 InputStream getInputStream() throws IOException;
37 void release();
38
39 /* ------------------------------------------------------------ */
40 /* ------------------------------------------------------------ */
41 /* ------------------------------------------------------------ */
42 public class ResourceAsHttpContent implements HttpContent
43 {
44 final Resource _resource;
45 final Buffer _mimeType;
46 final int _maxBuffer;
47
48 public ResourceAsHttpContent(final Resource resource, final Buffer mimeType)
49 {
50 _resource=resource;
51 _mimeType=mimeType;
52 _maxBuffer=-1;
53 }
54
55 public ResourceAsHttpContent(final Resource resource, final Buffer mimeType, int maxBuffer)
56 {
57 _resource=resource;
58 _mimeType=mimeType;
59 _maxBuffer=maxBuffer;
60 }
61
62 /* ------------------------------------------------------------ */
63 public Buffer getContentType()
64 {
65 return _mimeType;
66 }
67
68 /* ------------------------------------------------------------ */
69 public Buffer getLastModified()
70 {
71 return null;
72 }
73
74 /* ------------------------------------------------------------ */
75 public Buffer getDirectBuffer()
76 {
77 return null;
78 }
79
80 /* ------------------------------------------------------------ */
81 public Buffer getIndirectBuffer()
82 {
83 try
84 {
85 if (_resource.length()<=0 || _maxBuffer<_resource.length())
86 return null;
87 ByteArrayBuffer buffer = new ByteArrayBuffer((int)_resource.length());
88 buffer.readFrom(_resource.getInputStream(),(int)_resource.length());
89 return buffer;
90 }
91 catch(IOException e)
92 {
93 throw new RuntimeException(e);
94 }
95 }
96
97 /* ------------------------------------------------------------ */
98 public long getContentLength()
99 {
100 return _resource.length();
101 }
102
103 /* ------------------------------------------------------------ */
104 public InputStream getInputStream() throws IOException
105 {
106 return _resource.getInputStream();
107 }
108
109 /* ------------------------------------------------------------ */
110 public Resource getResource()
111 {
112 return _resource;
113 }
114
115 /* ------------------------------------------------------------ */
116 public void release()
117 {
118 _resource.release();
119 }
120 }
121 }