1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.http.entity.mime.content;
29
30 import java.io.IOException;
31 import java.io.InputStream;
32 import java.io.OutputStream;
33
34 import org.apache.http.entity.ContentType;
35 import org.apache.http.entity.mime.MIME;
36 import org.apache.http.entity.mime.MultipartEntityBuilder;
37 import org.apache.http.util.Args;
38
39 /**
40 * Binary body part backed by an input stream.
41 *
42 * @see MultipartEntityBuilder
43 *
44 * @since 4.0
45 */
46 public class InputStreamBody extends AbstractContentBody {
47
48 private final InputStream in;
49 private final String filename;
50
51 /**
52 * @since 4.1
53 *
54 * @deprecated (4.3) use {@link InputStreamBody#InputStreamBody(InputStream, ContentType,
55 * String)} or {@link MultipartEntityBuilder}
56 */
57 @Deprecated
58 public InputStreamBody(final InputStream in, final String mimeType, final String filename) {
59 this(in, ContentType.create(mimeType), filename);
60 }
61
62 public InputStreamBody(final InputStream in, final String filename) {
63 this(in, ContentType.DEFAULT_BINARY, filename);
64 }
65
66 /**
67 * @since 4.3
68 */
69 public InputStreamBody(final InputStream in, final ContentType contentType, final String filename) {
70 super(contentType);
71 Args.notNull(in, "Input stream");
72 this.in = in;
73 this.filename = filename;
74 }
75
76 /**
77 * @since 4.3
78 */
79 public InputStreamBody(final InputStream in, final ContentType contentType) {
80 this(in, contentType, null);
81 }
82
83 public InputStream getInputStream() {
84 return this.in;
85 }
86
87 public void writeTo(final OutputStream out) throws IOException {
88 Args.notNull(out, "Output stream");
89 try {
90 final byte[] tmp = new byte[4096];
91 int l;
92 while ((l = this.in.read(tmp)) != -1) {
93 out.write(tmp, 0, l);
94 }
95 out.flush();
96 } finally {
97 this.in.close();
98 }
99 }
100
101 public String getTransferEncoding() {
102 return MIME.ENC_BINARY;
103 }
104
105 public long getContentLength() {
106 return -1;
107 }
108
109 public String getFilename() {
110 return this.filename;
111 }
112
113 }