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.ByteArrayInputStream;
31 import java.io.IOException;
32 import java.io.InputStream;
33 import java.io.InputStreamReader;
34 import java.io.OutputStream;
35 import java.io.Reader;
36 import java.nio.charset.Charset;
37 import java.nio.charset.StandardCharsets;
38
39 import org.apache.hc.core5.http.ContentType;
40 import org.apache.hc.core5.util.Args;
41
42 /**
43 * Text body part backed by a byte array.
44 *
45 * @see org.apache.hc.client5.http.entity.mime.MultipartEntityBuilder
46 *
47 * @since 4.0
48 */
49 public class StringBody extends AbstractContentBody {
50
51 private final byte[] content;
52
53 /**
54 * @since 4.3
55 */
56 public StringBody(final String text, final ContentType contentType) {
57 super(contentType);
58 Args.notNull(text, "Text");
59 final Charset charset = contentType.getCharset();
60 this.content = text.getBytes(charset != null ? charset : StandardCharsets.US_ASCII);
61 }
62
63 public Reader getReader() {
64 final Charset charset = getContentType().getCharset();
65 return new InputStreamReader(
66 new ByteArrayInputStream(this.content),
67 charset != null ? charset : StandardCharsets.US_ASCII);
68 }
69
70 @Override
71 public void writeTo(final OutputStream out) throws IOException {
72 Args.notNull(out, "Output stream");
73 final InputStream in = new ByteArrayInputStream(this.content);
74 final byte[] tmp = new byte[4096];
75 int l;
76 while ((l = in.read(tmp)) != -1) {
77 out.write(tmp, 0, l);
78 }
79 out.flush();
80 }
81
82 @Override
83 public long getContentLength() {
84 return this.content.length;
85 }
86
87 @Override
88 public String getFilename() {
89 return null;
90 }
91
92 }