xsltransform.java

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/*
 * Copyright 2005 Sun Microsystems, Inc.
 *
 * Licensed 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.
 */
package org.roller.util;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;

import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.SourceLocator;
import javax.xml.transform.Templates;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;

/**
 * Run an XSL transform (from the Java Almanac)
 * @author Dave Johnson
 */
public class XSLTransform
{
    public static void main(String[] args)
    {
        if (args.length < 3)
        {
            System.out.println("USAGE: infile outfile xslfile");
            System.exit(-1);
        }
        String inFilename = args[0];
        String outFilename = args[1];
        String xslFilename = args[2];
        try
        {
            // Create transformer factory
            TransformerFactory factory = TransformerFactory.newInstance();

            // Use the factory to create a template containing the xsl file
            Templates template = factory.newTemplates(new StreamSource(
                    new FileInputStream(xslFilename)));

            // Use the template to create a transformer
            Transformer xformer = template.newTransformer();

            // Prepare the input and output files
            Source source = new StreamSource(new FileInputStream(inFilename));
            Result result = new StreamResult(new FileOutputStream(outFilename));

            // Apply the xsl file to the source file and write the result to the
            // output file
            xformer.transform(source, result);
        }
        catch (FileNotFoundException e)
        {
            e.printStackTrace();
        }
        catch (TransformerConfigurationException e)
        {
            // An error occurred in the XSL file
            e.printStackTrace();
        }
        catch (TransformerException e)
        {
            // An error occurred while applying the XSL file
            // Get location of error in input file
            SourceLocator locator = e.getLocator();
            int col = locator.getColumnNumber();
            int line = locator.getLineNumber();
            String publicId = locator.getPublicId();
            String systemId = locator.getSystemId();
            System.out.println("ERROR: line = "+line+" col = "+col);
        }
    }
}