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package org.apache.maven.archetype.ui; |
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import org.codehaus.plexus.component.annotations.Component; |
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import org.codehaus.plexus.component.annotations.Requirement; |
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import org.codehaus.plexus.components.interactivity.InputHandler; |
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import org.codehaus.plexus.components.interactivity.OutputHandler; |
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import org.codehaus.plexus.components.interactivity.Prompter; |
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import org.codehaus.plexus.components.interactivity.PrompterException; |
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import org.codehaus.plexus.util.StringUtils; |
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import java.io.IOException; |
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import java.util.List; |
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@Component( role = Prompter.class, hint = "archetype" ) |
37 | 26 | public class ArchetypePrompter |
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implements Prompter |
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{ |
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@Requirement |
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private OutputHandler outputHandler; |
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@Requirement |
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private InputHandler inputHandler; |
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public String prompt( String message ) |
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throws PrompterException |
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{ |
50 | 0 | writePrompt( message ); |
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|
52 | 0 | return readLine(); |
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} |
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public String prompt( String message, String defaultReply ) |
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throws PrompterException |
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{ |
58 | 0 | writePrompt( formatMessage( message, null, defaultReply ) ); |
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60 | 0 | String line = readLine(); |
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|
62 | 0 | if ( StringUtils.isEmpty( line ) ) |
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{ |
64 | 0 | line = defaultReply; |
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} |
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67 | 0 | return line; |
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} |
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@SuppressWarnings( { "rawtypes", "unchecked" }) |
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public String prompt( String message, List possibleValues, String defaultReply ) |
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throws PrompterException |
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{ |
74 | 0 | String formattedMessage = formatMessage( message, possibleValues, defaultReply ); |
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String line; |
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do |
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{ |
80 | 0 | writePrompt( formattedMessage ); |
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82 | 0 | line = readLine(); |
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84 | 0 | if ( StringUtils.isEmpty( line ) ) |
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{ |
86 | 0 | line = defaultReply; |
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} |
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89 | 0 | if ( line != null && !possibleValues.contains( line ) ) |
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{ |
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try |
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{ |
93 | 0 | outputHandler.writeLine( "Invalid selection." ); |
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} |
95 | 0 | catch ( IOException e ) |
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{ |
97 | 0 | throw new PrompterException( "Failed to present feedback", e ); |
98 | 0 | } |
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} |
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} |
101 | 0 | while ( line == null || !possibleValues.contains( line ) ); |
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103 | 0 | return line; |
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} |
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@SuppressWarnings( "rawtypes" ) |
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public String prompt( String message, List possibleValues ) |
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throws PrompterException |
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{ |
110 | 0 | return prompt( message, possibleValues, null ); |
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} |
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public String promptForPassword( String message ) |
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throws PrompterException |
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{ |
116 | 0 | writePrompt( message ); |
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try |
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{ |
120 | 0 | return inputHandler.readPassword(); |
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} |
122 | 0 | catch ( IOException e ) |
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{ |
124 | 0 | throw new PrompterException( "Failed to read user response", e ); |
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} |
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} |
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private String formatMessage( String message, List<String> possibleValues, String defaultReply ) |
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{ |
130 | 0 | StringBuffer formatted = new StringBuffer( message.length() * 2 ); |
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132 | 0 | formatted.append( message ); |
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|
139 | 0 | if ( defaultReply != null ) |
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{ |
141 | 0 | formatted.append( defaultReply ); |
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} |
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144 | 0 | return formatted.toString(); |
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} |
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private void writePrompt( String message ) |
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throws PrompterException |
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{ |
150 | 0 | showMessage( message + ": " ); |
151 | 0 | } |
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private String readLine() |
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throws PrompterException |
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{ |
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try |
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{ |
158 | 0 | return inputHandler.readLine(); |
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} |
160 | 0 | catch ( IOException e ) |
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{ |
162 | 0 | throw new PrompterException( "Failed to read user response", e ); |
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} |
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} |
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public void showMessage( String message ) |
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throws PrompterException |
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{ |
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try |
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{ |
171 | 0 | outputHandler.write( message ); |
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} |
173 | 0 | catch ( IOException e ) |
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{ |
175 | 0 | throw new PrompterException( "Failed to show message", e ); |
176 | 0 | } |
177 | 0 | } |
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} |