Coverage Report - org.apache.maven.plugin.ant.HelpMojo
 
Classes in this File Line Coverage Branch Coverage Complexity
HelpMojo
0%
0/99
0%
0/62
6,167
 
 1  
 package org.apache.maven.plugin.ant;
 2  
 
 3  
 import java.util.ArrayList;
 4  
 import java.util.Iterator;
 5  
 import java.util.List;
 6  
 
 7  
 import org.apache.maven.plugin.AbstractMojo;
 8  
 import org.apache.maven.plugin.MojoExecutionException;
 9  
 
 10  
 /**
 11  
  * Display help information on maven-ant-plugin.<br/> Call <pre>  mvn ant:help -Ddetail=true -Dgoal=&lt;goal-name&gt;</pre> to display parameter details.
 12  
  *
 13  
  * @version generated on Sat Nov 07 15:37:38 CET 2009
 14  
  * @author org.apache.maven.tools.plugin.generator.PluginHelpGenerator (version 2.5.1)
 15  
  * @goal help
 16  
  * @requiresProject false
 17  
  */
 18  0
 public class HelpMojo
 19  
     extends AbstractMojo
 20  
 {
 21  
     /**
 22  
      * If <code>true</code>, display all settable properties for each goal.
 23  
      * 
 24  
      * @parameter expression="${detail}" default-value="false"
 25  
      */
 26  
     private boolean detail;
 27  
 
 28  
     /**
 29  
      * The name of the goal for which to show help. If unspecified, all goals will be displayed.
 30  
      * 
 31  
      * @parameter expression="${goal}"
 32  
      */
 33  
     private java.lang.String goal;
 34  
 
 35  
     /**
 36  
      * The maximum length of a display line, should be positive.
 37  
      * 
 38  
      * @parameter expression="${lineLength}" default-value="80"
 39  
      */
 40  
     private int lineLength;
 41  
 
 42  
     /**
 43  
      * The number of spaces per indentation level, should be positive.
 44  
      * 
 45  
      * @parameter expression="${indentSize}" default-value="2"
 46  
      */
 47  
     private int indentSize;
 48  
 
 49  
 
 50  
     /** {@inheritDoc} */
 51  
     public void execute()
 52  
         throws MojoExecutionException
 53  
     {
 54  0
         if ( lineLength <= 0 )
 55  
         {
 56  0
             getLog().warn( "The parameter 'lineLength' should be positive, using '80' as default." );
 57  0
             lineLength = 80;
 58  
         }
 59  0
         if ( indentSize <= 0 )
 60  
         {
 61  0
             getLog().warn( "The parameter 'indentSize' should be positive, using '2' as default." );
 62  0
             indentSize = 2;
 63  
         }
 64  
 
 65  0
         StringBuffer sb = new StringBuffer();
 66  
 
 67  0
         append( sb, "org.apache.maven.plugins:maven-ant-plugin:2.3", 0 );
 68  0
         append( sb, "", 0 );
 69  
 
 70  0
         append( sb, "Maven Ant Plugin", 0 );
 71  0
         append( sb, "Generates an Ant build file from a POM.", 1 );
 72  0
         append( sb, "", 0 );
 73  
 
 74  0
         if ( goal == null || goal.length() <= 0 )
 75  
         {
 76  0
             append( sb, "This plugin has 3 goals:", 0 );
 77  0
             append( sb, "", 0 );
 78  
         }
 79  
 
 80  0
         if ( goal == null || goal.length() <= 0 || "ant".equals( goal ) )
 81  
         {
 82  0
             append( sb, "ant:ant", 0 );
 83  0
             append( sb, "Generate Ant build files.", 1 );
 84  0
             append( sb, "", 0 );
 85  0
             if ( detail )
 86  
             {
 87  0
                 append( sb, "Available parameters:", 1 );
 88  0
                 append( sb, "", 0 );
 89  
 
 90  0
                 append( sb, "overwrite (Default: false)", 2 );
 91  0
                 append( sb, "Whether or not to overwrite the build.xml file.", 3 );
 92  0
                 append( sb, "", 0 );
 93  
             }
 94  
         }
 95  
 
 96  0
         if ( goal == null || goal.length() <= 0 || "clean".equals( goal ) )
 97  
         {
 98  0
             append( sb, "ant:clean", 0 );
 99  0
             append( sb, "Clean all Ant build files.", 1 );
 100  0
             append( sb, "", 0 );
 101  0
             if ( detail )
 102  
             {
 103  0
                 append( sb, "Available parameters:", 1 );
 104  0
                 append( sb, "", 0 );
 105  
 
 106  0
                 append( sb, "deleteCustomFiles (Default: false)", 2 );
 107  0
                 append( sb, "Forcing the deletion of the custom build.xml.", 3 );
 108  0
                 append( sb, "", 0 );
 109  
             }
 110  
         }
 111  
 
 112  0
         if ( goal == null || goal.length() <= 0 || "help".equals( goal ) )
 113  
         {
 114  0
             append( sb, "ant:help", 0 );
 115  0
             append( sb, "Display help information on maven-ant-plugin.\nCall\n\u00a0\u00a0mvn\u00a0ant:help\u00a0-Ddetail=true\u00a0-Dgoal=<goal-name>\nto display parameter details.", 1 );
 116  0
             append( sb, "", 0 );
 117  0
             if ( detail )
 118  
             {
 119  0
                 append( sb, "Available parameters:", 1 );
 120  0
                 append( sb, "", 0 );
 121  
 
 122  0
                 append( sb, "detail (Default: false)", 2 );
 123  0
                 append( sb, "If true, display all settable properties for each goal.", 3 );
 124  0
                 append( sb, "", 0 );
 125  
 
 126  0
                 append( sb, "goal", 2 );
 127  0
                 append( sb, "The name of the goal for which to show help. If unspecified, all goals will be displayed.", 3 );
 128  0
                 append( sb, "", 0 );
 129  
 
 130  0
                 append( sb, "indentSize (Default: 2)", 2 );
 131  0
                 append( sb, "The number of spaces per indentation level, should be positive.", 3 );
 132  0
                 append( sb, "", 0 );
 133  
 
 134  0
                 append( sb, "lineLength (Default: 80)", 2 );
 135  0
                 append( sb, "The maximum length of a display line, should be positive.", 3 );
 136  0
                 append( sb, "", 0 );
 137  
             }
 138  
         }
 139  
 
 140  0
         if ( getLog().isInfoEnabled() )
 141  
         {
 142  0
             getLog().info( sb.toString() );
 143  
         }
 144  0
     }
 145  
 
 146  
     /**
 147  
      * <p>Repeat a String <code>n</code> times to form a new string.</p>
 148  
      *
 149  
      * @param str String to repeat
 150  
      * @param repeat number of times to repeat str
 151  
      * @return String with repeated String
 152  
      * @throws NegativeArraySizeException if <code>repeat < 0</code>
 153  
      * @throws NullPointerException if str is <code>null</code>
 154  
      */
 155  
     private static String repeat( String str, int repeat )
 156  
     {
 157  0
         StringBuffer buffer = new StringBuffer( repeat * str.length() );
 158  
 
 159  0
         for ( int i = 0; i < repeat; i++ )
 160  
         {
 161  0
             buffer.append( str );
 162  
         }
 163  
 
 164  0
         return buffer.toString();
 165  
     }
 166  
 
 167  
     /** 
 168  
      * Append a description to the buffer by respecting the indentSize and lineLength parameters.
 169  
      * <b>Note</b>: The last character is always a new line.
 170  
      * 
 171  
      * @param sb The buffer to append the description, not <code>null</code>.
 172  
      * @param description The description, not <code>null</code>.
 173  
      * @param indent The base indentation level of each line, must not be negative.
 174  
      */
 175  
     private void append( StringBuffer sb, String description, int indent )
 176  
     {
 177  0
         for ( Iterator it = toLines( description, indent, indentSize, lineLength ).iterator(); it.hasNext(); )
 178  
         {
 179  0
             sb.append( it.next().toString() ).append( '\n' );
 180  
         }
 181  0
     }
 182  
 
 183  
     /** 
 184  
      * Splits the specified text into lines of convenient display length.
 185  
      * 
 186  
      * @param text The text to split into lines, must not be <code>null</code>.
 187  
      * @param indent The base indentation level of each line, must not be negative.
 188  
      * @param indentSize The size of each indentation, must not be negative.
 189  
      * @param lineLength The length of the line, must not be negative.
 190  
      * @return The sequence of display lines, never <code>null</code>.
 191  
      * @throws NegativeArraySizeException if <code>indent < 0</code>
 192  
      */
 193  
     private static List toLines( String text, int indent, int indentSize, int lineLength )
 194  
     {
 195  0
         List lines = new ArrayList();
 196  
 
 197  0
         String ind = repeat( "\t", indent );
 198  0
         String[] plainLines = text.split( "(\r\n)|(\r)|(\n)" );
 199  0
         for ( int i = 0; i < plainLines.length; i++ )
 200  
         {
 201  0
             toLines( lines, ind + plainLines[i], indentSize, lineLength );
 202  
         }
 203  
 
 204  0
         return lines;
 205  
     }
 206  
 
 207  
     /** 
 208  
      * Adds the specified line to the output sequence, performing line wrapping if necessary.
 209  
      * 
 210  
      * @param lines The sequence of display lines, must not be <code>null</code>.
 211  
      * @param line The line to add, must not be <code>null</code>.
 212  
      * @param indentSize The size of each indentation, must not be negative.
 213  
      * @param lineLength The length of the line, must not be negative.
 214  
      */
 215  
     private static void toLines( List lines, String line, int indentSize, int lineLength )
 216  
     {
 217  0
         int lineIndent = getIndentLevel( line );
 218  0
         StringBuffer buf = new StringBuffer( 256 );
 219  0
         String[] tokens = line.split( " +" );
 220  0
         for ( int i = 0; i < tokens.length; i++ )
 221  
         {
 222  0
             String token = tokens[i];
 223  0
             if ( i > 0 )
 224  
             {
 225  0
                 if ( buf.length() + token.length() >= lineLength )
 226  
                 {
 227  0
                     lines.add( buf.toString() );
 228  0
                     buf.setLength( 0 );
 229  0
                     buf.append( repeat( " ", lineIndent * indentSize ) );
 230  
                 }
 231  
                 else
 232  
                 {
 233  0
                     buf.append( ' ' );
 234  
                 }
 235  
             }
 236  0
             for ( int j = 0; j < token.length(); j++ )
 237  
             {
 238  0
                 char c = token.charAt( j );
 239  0
                 if ( c == '\t' )
 240  
                 {
 241  0
                     buf.append( repeat( " ", indentSize - buf.length() % indentSize ) );
 242  
                 }
 243  0
                 else if ( c == '\u00A0' )
 244  
                 {
 245  0
                     buf.append( ' ' );
 246  
                 }
 247  
                 else
 248  
                 {
 249  0
                     buf.append( c );
 250  
                 }
 251  
             }
 252  
         }
 253  0
         lines.add( buf.toString() );
 254  0
     }
 255  
 
 256  
     /** 
 257  
      * Gets the indentation level of the specified line.
 258  
      * 
 259  
      * @param line The line whose indentation level should be retrieved, must not be <code>null</code>.
 260  
      * @return The indentation level of the line.
 261  
      */
 262  
     private static int getIndentLevel( String line )
 263  
     {
 264  0
         int level = 0;
 265  0
         for ( int i = 0; i < line.length() && line.charAt( i ) == '\t'; i++ )
 266  
         {
 267  0
             level++;
 268  
         }
 269  0
         for ( int i = level + 1; i <= level + 4 && i < line.length(); i++ )
 270  
         {
 271  0
             if ( line.charAt( i ) == '\t' )
 272  
             {
 273  0
                 level++;
 274  0
                 break;
 275  
             }
 276  
         }
 277  0
         return level;
 278  
     }
 279  
 }