Clover coverage report - Ant Coverage
Coverage timestamp: Tue Apr 8 2003 20:43:55 EST
file stats: LOC: 135   Methods: 4
NCLOC: 47   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
DefaultInputHandler.java 0% 0% 25% 2.9%
 1   
 /*
 2   
  * The Apache Software License, Version 1.1
 3   
  *
 4   
  * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights
 5   
  * reserved.
 6   
  *
 7   
  * Redistribution and use in source and binary forms, with or without
 8   
  * modification, are permitted provided that the following conditions
 9   
  * are met:
 10   
  *
 11   
  * 1. Redistributions of source code must retain the above copyright
 12   
  *    notice, this list of conditions and the following disclaimer.
 13   
  *
 14   
  * 2. Redistributions in binary form must reproduce the above copyright
 15   
  *    notice, this list of conditions and the following disclaimer in
 16   
  *    the documentation and/or other materials provided with the
 17   
  *    distribution.
 18   
  *
 19   
  * 3. The end-user documentation included with the redistribution, if
 20   
  *    any, must include the following acknowlegement:
 21   
  *       "This product includes software developed by the
 22   
  *        Apache Software Foundation (http://www.apache.org/)."
 23   
  *    Alternately, this acknowlegement may appear in the software itself,
 24   
  *    if and wherever such third-party acknowlegements normally appear.
 25   
  *
 26   
  * 4. The names "Ant" and "Apache Software
 27   
  *    Foundation" must not be used to endorse or promote products derived
 28   
  *    from this software without prior written permission. For written
 29   
  *    permission, please contact apache@apache.org.
 30   
  *
 31   
  * 5. Products derived from this software may not be called "Apache"
 32   
  *    nor may "Apache" appear in their names without prior written
 33   
  *    permission of the Apache Group.
 34   
  *
 35   
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 36   
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 37   
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 38   
  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 39   
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 40   
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 41   
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 42   
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 43   
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 44   
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 45   
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 46   
  * SUCH DAMAGE.
 47   
  * ====================================================================
 48   
  *
 49   
  * This software consists of voluntary contributions made by many
 50   
  * individuals on behalf of the Apache Software Foundation.  For more
 51   
  * information on the Apache Software Foundation, please see
 52   
  * <http://www.apache.org/>.
 53   
  */
 54   
 
 55   
 package org.apache.tools.ant.input;
 56   
 
 57   
 import java.io.DataInputStream;
 58   
 import java.io.IOException;
 59   
 import java.io.InputStream;
 60   
 import java.util.Enumeration;
 61   
 import org.apache.tools.ant.BuildException;
 62   
 
 63   
 /**
 64   
  * Prompts on System.err, reads input from System.in
 65   
  *
 66   
  * @author Stefan Bodewig
 67   
  * @version $Revision: 1.7 $
 68   
  * @since Ant 1.5
 69   
  */
 70   
 public class DefaultInputHandler implements InputHandler {
 71   
     
 72   
     /**
 73   
      * Empty no-arg constructor
 74   
      */
 75  685
     public DefaultInputHandler() {
 76   
     }
 77   
 
 78   
     /**
 79   
      * Prompts and requests input.  May loop until a valid input has
 80   
      * been entered.
 81   
      */
 82  0
     public void handleInput(InputRequest request) throws BuildException {
 83  0
         String prompt = getPrompt(request);
 84  0
         DataInputStream in = new DataInputStream(getInputStream());
 85  0
         do {
 86  0
             System.err.println(prompt);
 87  0
             try {
 88  0
                 String input = in.readLine();
 89  0
                 request.setInput(input);
 90   
             } catch (IOException e) {
 91  0
                 throw new BuildException("Failed to read input from Console.",
 92   
                                          e);
 93   
             }
 94  0
         } while (!request.isInputValid());
 95   
     }
 96   
 
 97   
     /**
 98   
      * Constructs user prompt from a request.
 99   
      *
 100   
      * <p>This implementation adds (choice1,choice2,choice3,...) to the
 101   
      * prompt for <code>MultipleChoiceInputRequest</code>s.</p>
 102   
      *
 103   
      * @param request the request to construct the prompt for.
 104   
      *                Must not be <code>null</code>.
 105   
      */
 106  0
     protected String getPrompt(InputRequest request) {
 107  0
         String prompt = request.getPrompt();
 108  0
         if (request instanceof MultipleChoiceInputRequest) {
 109  0
             StringBuffer sb = new StringBuffer(prompt);
 110  0
             sb.append("(");
 111  0
             Enumeration enum = 
 112   
                 ((MultipleChoiceInputRequest) request).getChoices().elements();
 113  0
             boolean first = true;
 114  0
             while (enum.hasMoreElements()) {
 115  0
                 if (!first) {
 116  0
                     sb.append(",");
 117   
                 }
 118  0
                 sb.append(enum.nextElement());
 119  0
                 first = false;
 120   
             }
 121  0
             sb.append(")");
 122  0
             prompt = sb.toString();
 123   
         }
 124  0
         return prompt;
 125   
     }
 126   
 
 127   
     /**
 128   
      * Returns the input stream from which the user input should be read.
 129   
      */
 130  0
     protected InputStream getInputStream() {
 131  0
         return System.in;
 132   
     }
 133   
 
 134   
 }
 135