ConvertDTD2XSDMojo.java

/*
 * Copyright 2005 The Codehaus.
 *
 * 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.codehaus.mojo.castor;

import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.codehaus.plexus.util.FileUtils;
import org.exolab.castor.xml.dtd.Converter;

/**
 * A mojo that uses Castor XML to convert a DTD document to corresponding XML Schema document.
 * 
 * @goal dtd2xsd
 * @description Converts DTD 2 XML Schema
 * @author Stevo Slavic <sslavic@gmail.com>
 */

public class ConvertDTD2XSDMojo
    extends AbstractMojo
{

    /**
     * The DTD file to convert.
     * 
     * @parameter
     * @required
     * @since 2.1
     */
    private File source;

    /**
     * The schema file to output.
     * 
     * @parameter
     * @required
     * @since 2.1
     */
    private File dest;

    /**
     * {@inheritDoc}
     * 
     * @see org.apache.maven.plugin.AbstractMojo#execute()
     */
    public void execute()
        throws MojoExecutionException
    {
        if ( !source.exists() )
        {
            throw new MojoExecutionException( "Source DTD " + source + " does not exists." );
        }

        File destDir = dest.getParentFile();

        if ( destDir != null && !destDir.exists() )
        {
            FileUtils.mkdir( destDir.getAbsolutePath() );
        }

        try
        {
            FileWriter writer = new FileWriter( dest );
            Converter.convertDTDtoSchema( new FileReader( source ), writer );
            writer.close();
        }
        catch ( Exception e )
        {
            throw new MojoExecutionException( "Castor execution failed", e );
        }
    }

    /**
     * Sets the DTD file to convert.
     * 
     * @param source the DTD file to convert.
     */
    public void setSource( final File source )
    {
        this.source = source;
    }

    /**
     * Sets the schema file to output.
     * 
     * @param dest the schema file to output.
     */

    public void setDest( final File dest )
    {
        this.dest = dest;
    }

}