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1   /*
2    * Copyright 2007-2008 the original author or authors.
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.gwe.app.client;
18  
19  import java.io.IOException;
20  
21  import jline.ConsoleReader;
22  
23  /**
24   * @author Marco Ruiz
25   * @since Jan 17, 2009
26   */
27  public class GWEConsoleReader extends ConsoleReader {
28  
29  	private ProgressTracker tracker;
30  	
31  	public GWEConsoleReader(ProgressTracker tracker) throws IOException {
32  		this.tracker = tracker;
33      }
34  	
35  	public String readMultiLines(String prompt, String escapeOK, String escapeCancel) throws IOException {
36  	    String multiLines = "";
37      	boolean lastMultiLine = false;
38  		while (!lastMultiLine) {
39  			String line = readLine();
40  			line = line.trim();
41  			if (line.endsWith(escapeCancel)) return "";
42  			if (line.endsWith(escapeOK)) {
43  				line = line.substring(0, line.length() - escapeOK.length());
44  				lastMultiLine = true;
45  			}
46  			multiLines += " " + line;
47      	}
48  		return multiLines;
49      }
50  
51  	public String readPasskey(String prompt, boolean passwordConfirmation) throws IOException {
52  	    boolean passwordCaptured = false;
53  	    String valueRead = null;
54  	    while (!passwordCaptured) {
55  	    	valueRead = readLine(prompt, '*');
56  	        String confirmation = passwordConfirmation ? readLine("confirm " + prompt, '*') : valueRead;
57  	        passwordCaptured = confirmation.equals(valueRead); 
58  	        if (!passwordCaptured)
59                  tracker.trackProgress("Pass keys do not match!");
60  	    }
61  	    return valueRead;
62      }
63  	
64  	public boolean readBoolean(String prompt) {
65  	    tracker.trackProgress(prompt + " (Y/N): ");
66  	    
67  	    try {
68  	        int character = readCharacter(new char[] {'y', 'Y', 'n', 'N'});
69  	        return (character == 'y' || character == 'Y');
70  	    } catch (IOException e) {
71  	    	return false;
72  	    }
73      }
74  }