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.hc.client5.http.entity.mime;
29
30 import java.io.IOException;
31 import java.io.InputStream;
32 import java.io.OutputStream;
33
34 import org.apache.hc.core5.http.ContentType;
35 import org.apache.hc.core5.util.Args;
36
37 /**
38 * Binary body part backed by an input stream.
39 *
40 * @see org.apache.hc.client5.http.entity.mime.MultipartEntityBuilder
41 *
42 * @since 4.0
43 */
44 public class InputStreamBody extends AbstractContentBody {
45
46 private final InputStream in;
47 private final String filename;
48 private final long contentLength;
49
50 public InputStreamBody(final InputStream in, final String filename) {
51 this(in, ContentType.DEFAULT_BINARY, filename);
52 }
53
54 /**
55 * @since 4.3
56 */
57 public InputStreamBody(final InputStream in, final ContentType contentType, final String filename) {
58 this(in, contentType, filename, -1);
59 }
60
61 /**
62 * @since 4.6
63 */
64 public InputStreamBody(final InputStream in, final ContentType contentType, final String filename, final long contentLength) {
65 super(contentType);
66 Args.notNull(in, "Input stream");
67 this.in = in;
68 this.filename = filename;
69 this.contentLength = contentLength >= 0 ? contentLength : -1;
70 }
71
72 /**
73 * @since 4.3
74 */
75 public InputStreamBody(final InputStream in, final ContentType contentType) {
76 this(in, contentType, null);
77 }
78
79 public InputStream getInputStream() {
80 return this.in;
81 }
82
83 @Override
84 public void writeTo(final OutputStream out) throws IOException {
85 Args.notNull(out, "Output stream");
86 try {
87 final byte[] tmp = new byte[4096];
88 int l;
89 while ((l = this.in.read(tmp)) != -1) {
90 out.write(tmp, 0, l);
91 }
92 out.flush();
93 } finally {
94 this.in.close();
95 }
96 }
97
98 @Override
99 public long getContentLength() {
100 return this.contentLength;
101 }
102
103 @Override
104 public String getFilename() {
105 return this.filename;
106 }
107
108 }