src/main/java/eu/svjatoslav/meviz/renamer/CommandlineHandler.java

   1 /*
   2  * Meviz - Various tools collection to work with multimedia.
   3  * Copyright (C) 2012, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of version 2 of the GNU General Public License
   7  * as published by the Free Software Foundation.
   8  */
   9
  10 package eu.svjatoslav.meviz.renamer;
  11
  12 import java.io.File;
  13
  14 import eu.svjatoslav.commons.commandline.parameterparser.Parser;
  15 import eu.svjatoslav.commons.commandline.parameterparser.parameter.DirectoryParameter;
  16 import eu.svjatoslav.commons.commandline.parameterparser.parameter.NullParameter;
  17 import eu.svjatoslav.commons.commandline.parameterparser.parameter.StringParameter;
  18 import eu.svjatoslav.commons.commandline.parameterparser.parameter.StringParameters;
  19 import eu.svjatoslav.meviz.encoder.EncodingOptions;
  20
  21 public class CommandlineHandler {
  22
  23         Parser parser = new Parser();
  24
  25         NullParameter recursiveParameter = parser.add(
  26                         new NullParameter("Enable recursive mode.")).addAliases("-r",
  27                         "--recursive");
  28
  29         NullParameter testParameter = parser.add(
  30                         new NullParameter(
  31                                         "Simulate renaming (no changes will be actually done)."))
  32                         .addAliases("-t", "--test");
  33
  34         StringParameter outputPatternParameter = parser.add(
  35                         new StringParameter("Output pattern.")).addAliases("-o",
  36                         "--output-pattern");
  37
  38         StringParameters inputPatternParameter = parser.add(
  39                         new StringParameters("File input pattern.")).addAliases("-i",
  40                         "--input-pattern");
  41
  42         DirectoryParameter workingDirectoryParameter = parser
  43                         .add(new DirectoryParameter("Working directory."))
  44                         .addAliases("-w", "--working-directory").mustExist();
  45
  46         /**
  47          * @return {@link EncodingOptions} if commandline arguments were
  48          *         successfully parsed, or <code>null</code> if parsing error
  49          *         occurred.
  50          */
  51         public RenamingOptions parseCommandlineArguments(final String[] args) {
  52
  53                 final RenamingOptions options = new RenamingOptions();
  54
  55                 if (!parser.parse(args))
  56                         return null;
  57
  58                 if (testParameter.isParameterSpecified())
  59                         options.testOnly = true;
  60
  61                 if (recursiveParameter.isParameterSpecified())
  62                         options.recursive = true;
  63
  64                 if (outputPatternParameter.isParameterSpecified())
  65                         options.outputPattern = outputPatternParameter.getValue();
  66
  67                 if (workingDirectoryParameter.isParameterSpecified())
  68                         options.targetDirectory = workingDirectoryParameter.getValue();
  69                 else
  70                         options.targetDirectory = new File(System.getProperty("user.dir"));
  71
  72                 // TODO: add multiple input patterns support
  73                 if (inputPatternParameter.isParameterSpecified())
  74                         options.inputPatterns.addAll(inputPatternParameter.getValue());
  75
  76                 return options;
  77         }
  78 }