1 /*
2 * Copyright (C) 2014 Christian Halstrick <christian.halstrick@sap.com>
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available
6 * under the terms of the Eclipse Distribution License v1.0 which
7 * accompanies this distribution, is reproduced below, and is
8 * available at http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
23 *
24 * - Neither the name of the Eclipse Foundation, Inc. nor the
25 * names of its contributors may be used to endorse or promote
26 * products derived from this software without specific prior
27 * written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43 package org.eclipse.jgit.transport.http.apache;
44
45 import java.io.IOException;
46 import java.io.InputStream;
47 import java.io.OutputStream;
48
49 import org.apache.http.entity.AbstractHttpEntity;
50 import org.eclipse.jgit.util.TemporaryBuffer;
51
52 /**
53 * A {@link org.apache.http.HttpEntity} which takes its content from a
54 * {@link org.eclipse.jgit.util.TemporaryBuffer}
55 *
56 * @since 3.3
57 */
58 public class TemporaryBufferEntity extends AbstractHttpEntity
59 implements AutoCloseable {
60 private TemporaryBuffer buffer;
61
62 private Integer contentLength;
63
64 /**
65 * Construct a new {@link org.apache.http.HttpEntity} which will contain the
66 * content stored in the specified buffer
67 *
68 * @param buffer
69 */
70 public TemporaryBufferEntity(TemporaryBuffer buffer) {
71 this.buffer = buffer;
72 }
73
74 /**
75 * Get the <code>buffer</code> containing the content
76 *
77 * @return buffer containing the content
78 */
79 public TemporaryBuffer getBuffer() {
80 return buffer;
81 }
82
83 /** {@inheritDoc} */
84 @Override
85 public boolean isRepeatable() {
86 return true;
87 }
88
89 /** {@inheritDoc} */
90 @Override
91 public long getContentLength() {
92 if (contentLength != null)
93 return contentLength.intValue();
94 return buffer.length();
95 }
96
97 /** {@inheritDoc} */
98 @Override
99 public InputStream getContent() throws IOException, IllegalStateException {
100 return buffer.openInputStream();
101 }
102
103 /** {@inheritDoc} */
104 @Override
105 public void writeTo(OutputStream outstream) throws IOException {
106 // TODO: dont we need a progressmonitor
107 buffer.writeTo(outstream, null);
108 }
109
110 /** {@inheritDoc} */
111 @Override
112 public boolean isStreaming() {
113 return false;
114 }
115
116 /**
117 * Set the <code>contentLength</code>
118 *
119 * @param contentLength
120 */
121 public void setContentLength(int contentLength) {
122 this.contentLength = Integer.valueOf(contentLength);
123 }
124
125 /**
126 * {@inheritDoc}
127 *
128 * Close destroys the associated buffer used to buffer the entity
129 * @since 4.5
130 */
131 @Override
132 public void close() {
133 if (buffer != null) {
134 buffer.destroy();
135 }
136 }
137 }