rngconvert.java

/**
 * $Id: $
 * $Date: $
 *
 */

package org.xmlsh.commands.internal;

import java.util.ArrayList;
import java.util.List;

import org.xml.sax.SAXException;
import org.xmlsh.core.InvalidArgumentException;
import org.xmlsh.core.Options;
import org.xmlsh.core.Options.OptionValue;
import org.xmlsh.core.XCommand;
import org.xmlsh.core.XValue;
import org.xmlsh.util.Util;

import com.thaiopensource.relaxng.edit.SchemaCollection;
import com.thaiopensource.relaxng.input.InputFormat;
import com.thaiopensource.relaxng.input.MultiInputFormat;
import com.thaiopensource.relaxng.output.LocalOutputDirectory;
import com.thaiopensource.relaxng.output.OutputDirectory;
import com.thaiopensource.relaxng.output.OutputFormat;
import com.thaiopensource.relaxng.translate.Formats;
import com.thaiopensource.resolver.Resolver;
import com.thaiopensource.resolver.catalog.CatalogResolver;
import com.thaiopensource.xml.sax.ErrorHandlerImpl;



public class rngconvert extends XCommand {




	  private final ErrorHandlerImpl eh = new ErrorHandlerImpl();
	  private String inputType;
	  private String outputType;
	  private static final String DEFAULT_OUTPUT_ENCODING = "UTF-8";
	  private static final int DEFAULT_LINE_LENGTH = 72;
	  private static final int DEFAULT_INDENT = 2;
	
	
	@Override
	public int run(List<XValue> args) throws Exception {
		    List<String> catalogUris = new ArrayList<String>();
		    String[] inputParamArray = null; 
		    String[] outputParamArray = null; 

			Options opts = new Options("C:,I:,O:,i:,o:");
			opts.parse(args);

	
			if (opts.hasOpt("C"))
				catalogUris.add(getEnv().getShell().getURL(opts.getOptStringRequired("C")).toString());

			inputType = opts.getOptString("I",null);
			outputType = opts.getOptString("O",null);
			
			if( opts.hasOpt("i")){
				OptionValue iv = opts.getOpt("i");
				inputParamArray = Util.toStringArray(iv.getValues()); 
			
			} else
				inputParamArray = new String[0];
			
			
			if( opts.hasOpt("o")){
				OptionValue iv = opts.getOpt("o");
				outputParamArray = Util.toStringArray(iv.getValues()); 
			} else
				outputParamArray = new String[0];
		  
		      args = opts.getRemainingArgs();

		      
		      if (inputType == null) {
		        inputType = extension(args.get(0).toString());
		        if (inputType.length() > 0)
		          inputType = inputType.substring(1);
		      }
		      
		      
		      final InputFormat inputFormat = Formats.createInputFormat(inputType);
		      if (inputFormat == null) 
		    	  throw new InvalidArgumentException("Unrecognized input type: " + inputType );

		      String ext = extension(args.get(args.size() - 1).toString());
		      if (outputType == null) {
		        outputType = ext;
		        if (outputType.length() > 0)
		          outputType = outputType.substring(1);
		      }
		      final OutputFormat outputFormat = Formats.createOutputFormat(outputType);
		      if (outputFormat == null) 
		    	  throw new InvalidArgumentException("Unrecognized output type: " + outputType );
		     
		      
		      Resolver resolver;
		      if (catalogUris.isEmpty())
		        resolver = null;
		      else {
		          resolver = new CatalogResolver(catalogUris);
		      }
		      
		      
		    	  
		      outputType = outputType.toLowerCase();
		      SchemaCollection sc;
		      if (args.size() > 2 ) {
		        if (!(inputFormat instanceof MultiInputFormat)) {
		        	throw new InvalidArgumentException("Too many arguments");
		        }
		        String[] uris = new String[args.size() - 1];
		        for (int i = 0; i < uris.length; i++)
		          uris[i] = getAbsoluteURI(args.get(i).toString());
		        
		        sc = ((MultiInputFormat)inputFormat).load(uris, inputParamArray, outputType, eh, resolver);
		      }
		      else
		        sc = inputFormat.load(getAbsoluteURI(args.get(0).toString()), inputParamArray, outputType, eh, resolver);
		      if (ext.length() == 0)
		        ext = outputType;
		      OutputDirectory od = new LocalOutputDirectory(sc.getMainUri(),
		                                                    getFile(args.get(args.size()- 1)),
		                                                    ext,
		                                                    DEFAULT_OUTPUT_ENCODING,
		                                                    DEFAULT_LINE_LENGTH,
		                                                    DEFAULT_INDENT);
		      outputFormat.output(sc, od, outputParamArray, inputType.toLowerCase(), eh);
		      return 0;
		    
		  
		  }

		  private void error(String message) {
		    eh.printException(new SAXException(message));
		  }

		  static private String extension(String s) {
		    int dot = s.lastIndexOf(".");
		    if (dot < 0)
		      return "";
		    return s.substring(dot);
		  }

		  
}

//
//
//Copyright (C) 2008-2014 David A. Lee.
//
//The contents of this file are subject to the "Simplified BSD License" (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.opensource.org/licenses/bsd-license.php 
//
//Software distributed under the License is distributed on an "AS IS" basis,
//WITHOUT WARRANTY OF ANY KIND, either express or implied.
//See the License for the specific language governing rights and limitations under the License.
//
//The Original Code is: all this file.
//
//The Initial Developer of the Original Code is David A. Lee
//
//Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
//Contributor(s): none.
//