1 /**
2 * Copyright 2003-2006 The Apache Software Foundation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.apache.geronimo.deployment.cli;
18
19 import java.io.IOException;
20 import java.io.InputStream;
21 import java.io.Writer;
22 import java.io.OutputStream;
23 import java.io.PrintWriter;
24 import java.io.OutputStreamWriter;
25
26 import jline.ConsoleReader;
27
28 /**
29 * Prompts a user for input; optionally masking.
30 *
31 * <p>
32 * Uses the <a href="http://jline.sf.net">JLine</a> library to provide a rich user experence.
33 *
34 * @version $Rev: 430136 $ $Date: 2006-08-09 13:21:52 -0700 (Wed, 09 Aug 2006) $
35 */
36 public class InputPrompt
37 {
38 private ConsoleReader reader;
39
40 public InputPrompt(final InputStream in, final Writer out) throws IOException {
41 this.reader = new ConsoleReader(in, out);
42 }
43
44 public InputPrompt(final InputStream in, final OutputStream out) throws IOException {
45 this(in, new PrintWriter(new OutputStreamWriter(out), true));
46 }
47
48 /**
49 * Displays the prompt, grabs the input.
50 */
51 public String getInput(final String prompt, final Character mask) throws IOException {
52 if (mask == null) {
53 return reader.readLine(prompt);
54 }
55 else {
56 return reader.readLine(prompt, mask);
57 }
58 }
59
60 public String getInput(final String prompt, final char mask) throws IOException {
61 return getInput(prompt, new Character(mask));
62 }
63
64 public String getInput(final String prompt) throws IOException {
65 return getInput(prompt, null);
66 }
67
68 /**
69 * Displays the prompt, grabs the input masking with '*'.
70 */
71 public String getPassword(final String prompt) throws IOException {
72 return getInput(prompt, '*');
73 }
74 }