src/main/java/eu/svjatoslav/meviz/encoder/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.encoder;
  11
  12 import eu.svjatoslav.commons.commandline.parameterparser.Parameter;
  13 import eu.svjatoslav.commons.commandline.parameterparser.Parser;
  14 import eu.svjatoslav.commons.commandline.parameterparser.arguments.StringArgument;
  15
  16 public class CommandlineHandler {
  17
  18         Parameter outputFormatParameter = new Parameter(true, true, true,
  19                         new StringArgument(), "Encoding output format.", "-o",
  20                         "--output-format");
  21
  22         Parameter terminalParameter = new Parameter("Enable popup terminal.",
  23                         "--terminal");
  24
  25         Parameter testParameter = new Parameter("Simulate file encoding.", "-t",
  26                         "--test");
  27
  28         Parameter recursiveParameter = new Parameter("Enable recursive mode.",
  29                         "-r", "--recursive");
  30
  31         Parameter inputPatternParameter = new Parameter(true, true, true,
  32                         new StringArgument(), "File input pattern.", "-i",
  33                         "--input-pattern");
  34
  35         Parameter workingDirectoryParameter = new Parameter(
  36                         false,
  37                         true,
  38                         true,
  39                         new eu.svjatoslav.commons.commandline.parameterparser.arguments.ExistingDirectory(),
  40                         "Working directory.", "-w", "--working-directory");
  41
  42         Parameter videoBitrateParameter = new Parameter(false, true, false,
  43                         new Bitrate(), "Video bitrate.", "-v", "--video-bitrate");
  44
  45         public Parser initParser() {
  46                 final Parser parser = new Parser();
  47
  48                 parser.addParameter(recursiveParameter);
  49
  50                 parser.addParameter(testParameter);
  51
  52                 parser.addParameter(terminalParameter);
  53
  54                 parser.addParameter(outputFormatParameter);
  55
  56                 parser.addParameter(inputPatternParameter);
  57
  58                 parser.addParameter(workingDirectoryParameter);
  59
  60                 parser.addParameter(videoBitrateParameter);
  61
  62                 return parser;
  63         }
  64
  65         /**
  66          * @return {@link EncodingOptions} if commandline arguments were
  67          *         successfully parsed, or <code>null</code> if parsing error
  68          *         occurred.
  69          */
  70         public EncodingOptions parseCommandlineArguments(final String[] args) {
  71
  72                 final EncodingOptions options = new EncodingOptions();
  73
  74                 final Parser parser = initParser();
  75                 parser.parse(args);
  76
  77                 if (recursiveParameter.isParameterSpecified())
  78                         options.recursive = true;
  79
  80                 if (terminalParameter.isParameterSpecified())
  81                         options.terminal = true;
  82
  83                 if (testParameter.isParameterSpecified())
  84                         options.testOnly = true;
  85
  86                 if (outputFormatParameter.isParameterSpecified())
  87                         options.outputFormats.addAll(outputFormatParameter
  88                                         .getArgumentsAsStrings());
  89
  90                 if (workingDirectoryParameter.isParameterSpecified())
  91                         options.workingDirectory = workingDirectoryParameter
  92                                         .getArgumentsAsFiles().get(0);
  93
  94                 if (inputPatternParameter.isParameterSpecified())
  95                         options.inputPatterns.addAll(inputPatternParameter
  96                                         .getArgumentsAsStrings());
  97
  98                 if (videoBitrateParameter.isParameterSpecified())
  99                         try {
 100                                 options.videoBitrate = Bitrate.bitrate
 101                                                 .valueOf(videoBitrateParameter.getArgumentAsString()
 102                                                                 .toUpperCase());
 103                         } catch (final Exception e) {
 104                                 System.out
 105                                                 .println("Invalid video bitrate. Valid values are: LOW, MEDIUM, HIGH.");
 106                                 return null;
 107                         }
 108
 109                 return options;
 110         }
 111 }