| package org.apache.maven.doxia.cli; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.commons.cli.CommandLine; |
| import org.apache.commons.cli.CommandLineParser; |
| import org.apache.commons.cli.GnuParser; |
| import org.apache.commons.cli.HelpFormatter; |
| import org.apache.commons.cli.OptionBuilder; |
| import org.apache.commons.cli.Options; |
| import org.apache.commons.cli.ParseException; |
| import org.apache.maven.doxia.DefaultConverter; |
| import org.codehaus.plexus.util.StringUtils; |
| |
| import com.ibm.icu.text.CharsetDetector; |
| |
| /** |
| * Manager for Doxia converter CLI options. |
| * |
| * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a> |
| * @version $Id$ |
| */ |
| @SuppressWarnings( "static-access" ) |
| class CLIManager |
| { |
| /** h character */ |
| static final char HELP = 'h'; |
| |
| /** v character */ |
| static final char VERSION = 'v'; |
| |
| /** in String */ |
| static final String IN = "in"; |
| |
| /** out String */ |
| static final String OUT = "out"; |
| |
| /** from String */ |
| static final String FROM = "from"; |
| |
| /** to String */ |
| static final String TO = "to"; |
| |
| /** inEncoding String */ |
| static final String INENCODING = "inEncoding"; |
| |
| /** f character */ |
| static final char FORMAT = 'f'; |
| |
| /** outEncoding String */ |
| static final String OUTENCODING = "outEncoding"; |
| |
| /** X character */ |
| static final char DEBUG = 'X'; |
| |
| /** e character */ |
| static final char ERRORS = 'e'; |
| |
| private static final Options OPTIONS; |
| |
| static |
| { |
| OPTIONS = new Options(); |
| |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "help" ).withDescription( "Display help information." ) |
| .create( HELP ) ); |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "version" ).withDescription( "Display version information." ) |
| .create( VERSION ) ); |
| |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "input" ).withDescription( "Input file or directory." ) |
| .hasArg().create( IN ) ); |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "output" ).withDescription( "Output file or directory." ) |
| .hasArg().create( OUT ) ); |
| OPTIONS.addOption( OptionBuilder.withDescription( "From format. If not specified, try to autodetect it." ) |
| .hasArg().create( FROM ) ); |
| OPTIONS.addOption( OptionBuilder.withDescription( "To format." ).hasArg().create( TO ) ); |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "inputEncoding" ) |
| .withDescription( "Input file encoding. " |
| + "If not specified, try to autodetect it." ) |
| .hasArg().create( INENCODING ) ); |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "format" ) |
| .withDescription( "Format the output (actually only xml based outputs) " |
| + " to be human readable." ) |
| .create( FORMAT ) ); |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "outputEncoding" ) |
| .withDescription( "Output file encoding. If not specified, use the " |
| + "input encoding (or autodetected)." ).hasArg() |
| .create( OUTENCODING ) ); |
| |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "debug" ) |
| .withDescription( "Produce execution debug output." ).create( DEBUG ) ); |
| OPTIONS.addOption( OptionBuilder.withLongOpt( "errors" ) |
| .withDescription( "Produce execution error messages." ).create( ERRORS ) ); |
| } |
| |
| /** |
| * @param args not null. |
| * @return a not null command line. |
| * @throws ParseException if any |
| * @throws IllegalArgumentException is args is null |
| */ |
| CommandLine parse( String[] args ) |
| throws ParseException |
| { |
| if ( args == null ) |
| { |
| throw new IllegalArgumentException( "args is required." ); |
| } |
| |
| // We need to eat any quotes surrounding arguments... |
| String[] cleanArgs = cleanArgs( args ); |
| |
| CommandLineParser parser = new GnuParser(); |
| return parser.parse( OPTIONS, cleanArgs ); |
| } |
| |
| static void displayHelp() |
| { |
| System.out.println(); |
| |
| HelpFormatter formatter = new HelpFormatter(); |
| formatter.printHelp( "doxia [options] -in <arg> [-from <arg>] [-inEncoding <arg>] -out <arg> " |
| + "-to <arg> [-outEncoding <arg>]\n", "\nOptions:", OPTIONS, getSupportedFormatAndEncoding() ); |
| } |
| |
| private static String getSupportedFormatAndEncoding() |
| { |
| return getSupportedFormat() + "\n" + getSupportedEncoding(); |
| } |
| |
| private static String getSupportedFormat() |
| { |
| return "\nSupported Formats:\n from: " + StringUtils.join( DefaultConverter.SUPPORTED_FROM_FORMAT, ", " ) |
| + " or autodetect" + "\n out: " + StringUtils.join( DefaultConverter.SUPPORTED_TO_FORMAT, ", " ) |
| + "\n"; |
| } |
| |
| private static String getSupportedEncoding() |
| { |
| return "\nSupported Encoding:\n " + StringUtils.join( CharsetDetector.getAllDetectableCharsets(), ", " ); |
| } |
| |
| private String[] cleanArgs( String[] args ) |
| { |
| List<String> cleaned = new ArrayList<String>(); |
| |
| StringBuilder currentArg = null; |
| |
| for ( int i = 0; i < args.length; i++ ) |
| { |
| String arg = args[i]; |
| |
| boolean addedToBuffer = false; |
| |
| if ( arg.startsWith( "\"" ) ) |
| { |
| // if we're in the process of building up another arg, push it and start over. |
| // this is for the case: "-Dfoo=bar "-Dfoo2=bar two" (note the first unterminated quote) |
| if ( currentArg != null ) |
| { |
| cleaned.add( currentArg.toString() ); |
| } |
| |
| // start building an argument here. |
| currentArg = new StringBuilder( arg.substring( 1 ) ); |
| addedToBuffer = true; |
| } |
| |
| // this has to be a separate "if" statement, to capture the case of: "-Dfoo=bar" |
| if ( arg.endsWith( "\"" ) ) |
| { |
| String cleanArgPart = arg.substring( 0, arg.length() - 1 ); |
| |
| // if we're building an argument, keep doing so. |
| if ( currentArg != null ) |
| { |
| // if this is the case of "-Dfoo=bar", then we need to adjust the buffer. |
| if ( addedToBuffer ) |
| { |
| currentArg.setLength( currentArg.length() - 1 ); |
| } |
| // otherwise, we trim the trailing " and append to the buffer. |
| else |
| { |
| // TODO: introducing a space here...not sure what else to do but collapse whitespace |
| currentArg.append( ' ' ).append( cleanArgPart ); |
| } |
| |
| // we're done with this argument, so add it. |
| cleaned.add( currentArg.toString() ); |
| } |
| else |
| { |
| // this is a simple argument...just add it. |
| cleaned.add( cleanArgPart ); |
| } |
| |
| // the currentArg MUST be finished when this completes. |
| currentArg = null; |
| continue; |
| } |
| |
| // if we haven't added this arg to the buffer, and we ARE building an argument |
| // buffer, then append it with a preceding space...again, not sure what else to |
| // do other than collapse whitespace. |
| // NOTE: The case of a trailing quote is handled by nullifying the arg buffer. |
| if ( !addedToBuffer ) |
| { |
| // append to the argument we're building, collapsing whitespace to a single space. |
| if ( currentArg != null ) |
| { |
| currentArg.append( ' ' ).append( arg ); |
| } |
| // this is a loner, just add it directly. |
| else |
| { |
| cleaned.add( arg ); |
| } |
| } |
| } |
| |
| // clean up. |
| if ( currentArg != null ) |
| { |
| cleaned.add( currentArg.toString() ); |
| } |
| |
| int cleanedSz = cleaned.size(); |
| String[] cleanArgs = null; |
| |
| if ( cleanedSz == 0 ) |
| { |
| // if we didn't have any arguments to clean, simply pass the original array through |
| cleanArgs = args; |
| } |
| else |
| { |
| cleanArgs = (String[]) cleaned.toArray( new String[cleanedSz] ); |
| } |
| |
| return cleanArgs; |
| } |
| } |