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.Parameter;
  15 import eu.svjatoslav.commons.commandline.parameterparser.Parser;
  16 import eu.svjatoslav.meviz.encoder.EncodingOptions;
  17
  18 public class CommandlineHandler {
  19
  20         Parameter recursiveParameter = new Parameter("Enable recursive mode.",
  21                         "-r", "--recursive");
  22
  23         Parameter testParameter = new Parameter(
  24                         "Simulate renaming (no changes will be actually done).", "-t",
  25                         "--test");
  26
  27         Parameter outputPatternParameter = new Parameter(
  28                         true,
  29                         true,
  30                         true,
  31                         new eu.svjatoslav.commons.commandline.parameterparser.arguments.String(),
  32                         "Output pattern.", "-o", "--output-pattern");
  33
  34         Parameter inputPatternParameter = new Parameter(
  35                         true,
  36                         true,
  37                         true,
  38                         new eu.svjatoslav.commons.commandline.parameterparser.arguments.String(),
  39                         "File input pattern.", "-i", "--input-pattern");
  40
  41         Parameter workingDirectoryParameter = new Parameter(
  42                         false,
  43                         true,
  44                         true,
  45                         new eu.svjatoslav.commons.commandline.parameterparser.arguments.ExistingDirectory(),
  46                         "Working directory.", "-w", "--working-directory");
  47
  48         public Parser initParser() {
  49
  50                 final Parser parser = new Parser();
  51                 parser.addParameter(recursiveParameter);
  52                 parser.addParameter(testParameter);
  53                 parser.addParameter(outputPatternParameter);
  54                 parser.addParameter(inputPatternParameter);
  55                 parser.addParameter(workingDirectoryParameter);
  56
  57                 return parser;
  58         }
  59
  60         /**
  61          * @return {@link EncodingOptions} if commandline arguments were
  62          *         successfully parsed, or <code>null</code> if parsing error
  63          *         occurred.
  64          */
  65         public RenamingOptions parseCommandlineArguments(final String[] args) {
  66
  67                 final RenamingOptions options = new RenamingOptions();
  68
  69                 final Parser parser = initParser();
  70                 if (!parser.parse(args))
  71                         return null;
  72
  73                 if (testParameter.isParameterSpecified())
  74                         options.testOnly = true;
  75
  76                 if (recursiveParameter.isParameterSpecified())
  77                         options.recursive = true;
  78
  79                 if (outputPatternParameter.isParameterSpecified())
  80                         options.outputPattern = outputPatternParameter
  81                                         .getArgumentsAsStrings().get(0);
  82
  83                 if (workingDirectoryParameter.isParameterSpecified())
  84                         options.targetDirectory = workingDirectoryParameter
  85                                         .getArgumentsAsFiles().get(0);
  86                 else
  87                         options.targetDirectory = new File(System.getProperty("user.dir"));
  88
  89                 if (inputPatternParameter.isParameterSpecified())
  90                         options.inputPatterns.addAll(inputPatternParameter
  91                                         .getArgumentsAsStrings());
  92
  93                 return options;
  94         }
  95 }