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.core5.testing.nio;
29
30 import java.io.IOException;
31
32 import org.slf4j.Logger;
33
34 class LogAppendable implements Appendable {
35
36 private final Logger log;
37 private final String prefix;
38 private final StringBuilder buffer;
39
40 LogAppendable(final Logger log, final String prefix) {
41 this.log = log;
42 this.prefix = prefix;
43 this.buffer = new StringBuilder();
44 }
45
46
47 @Override
48 public Appendable append(final CharSequence text) throws IOException {
49 return append(text, 0, text.length());
50 }
51
52 @Override
53 public Appendable append(final CharSequence text, final int start, final int end) throws IOException {
54 for (int i = start; i < end; i++) {
55 append(text.charAt(i));
56 }
57 return this;
58 }
59
60 @Override
61 public Appendable append(final char ch) throws IOException {
62 if (ch == '\n') {
63 log.debug("{} {}", prefix, buffer);
64 buffer.setLength(0);
65 } else if (ch != '\r') {
66 buffer.append(ch);
67 }
68 return this;
69 }
70
71 public void flush() {
72 if (buffer.length() > 0) {
73 log.debug("{} {}", prefix, buffer);
74 buffer.setLength(0);
75 }
76 }
77
78 }