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.createNullParameter(
  26                         "Enable recursive mode.").addAliases("-r", "--recursive");
  27
  28         NullParameter testParameter = parser.createNullParameter(
  29                         "Simulate renaming (no changes will be actually done).")
  30                         .addAliases("-t", "--test");
  31
  32         StringParameter outputPatternParameter = parser.createStringParameter(
  33                         "Output pattern.").addAliases("-o", "--output-pattern");
  34
  35         StringParameters inputPatternParameter = parser.createStringParameters(
  36                         "File input pattern.").addAliases("-i", "--input-pattern");
  37
  38         DirectoryParameter workingDirectoryParameter = parser
  39                         .createDirectoryParameter("Working directory.")
  40                         .addAliases("-w", "--working-directory").mustExist();
  41
  42         /**
  43          * @return {@link EncodingOptions} if commandline arguments were
  44          *         successfully parsed, or <code>null</code> if parsing error
  45          *         occurred.
  46          */
  47         public RenamingOptions parseCommandlineArguments(final String[] args) {
  48
  49                 final RenamingOptions options = new RenamingOptions();
  50
  51                 if (!parser.parse(args))
  52                         return null;
  53
  54                 if (testParameter.isParameterSpecified())
  55                         options.testOnly = true;
  56
  57                 if (recursiveParameter.isParameterSpecified())
  58                         options.recursive = true;
  59
  60                 if (outputPatternParameter.isParameterSpecified())
  61                         options.outputPattern = outputPatternParameter.getValue();
  62
  63                 if (workingDirectoryParameter.isParameterSpecified())
  64                         options.targetDirectory = workingDirectoryParameter.getValue();
  65                 else
  66                         options.targetDirectory = new File(System.getProperty("user.dir"));
  67
  68                 // TODO: add multiple input patterns support
  69                 if (inputPatternParameter.isParameterSpecified())
  70                         options.inputPatterns.addAll(inputPatternParameter.getValue());
  71
  72                 return options;
  73         }
  74 }