/**
 * Redistribution and use of this software and associated documentation ("Software"), with or
 * without modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and notices. Redistributions
 * must also contain a copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided with
 * the distribution.
 *
 * 3. The name "Exolab" must not be used to endorse or promote products derived from this Software
 * without prior written permission of Intalio, Inc. For written permission, please contact
 * info@exolab.org.
 *
 * 4. Products derived from this Software may not be called "Exolab" nor may "Exolab" appear in
 * their names without prior written permission of Intalio, Inc. Exolab is a registered trademark of
 * Intalio, Inc.
 *
 * 5. Due credit should be given to the Exolab Project (http://www.exolab.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTALIO, INC. OR ITS
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 1999 (C) Intalio, Inc. All Rights Reserved.
 *
 * $Id$
 */


package org.exolab.castor.dsml;


import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;

import org.castor.xml.BackwardCompatibilityContext;
import org.castor.xml.InternalContext;
import org.xml.sax.DocumentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.Parser;
import org.xml.sax.SAXException;


/**
 *
 *
 * @author <a href="mailto:arkin@intalio.com">Assaf Arkin</a>
 * @version $Revision$ $Date: 2004-12-13 14:00:30 -0700 (Mon, 13 Dec 2004) $
 */
public abstract class Exporter {

  private InternalContext _xmlContext = new BackwardCompatibilityContext();

  private SearchDescriptor _searchDesc;


  private ImportDescriptor _importDesc;



  public void export(OutputStream output, boolean serverSchema, boolean importPolicy)
      throws ImportExportException {
    try {
      export(_xmlContext.getSerializer(output), serverSchema, importPolicy);
    } catch (IOException except) {
      throw new ImportExportException(except);
    }
  }


  public void export(Writer output, boolean serverSchema, boolean importPolicy)
      throws ImportExportException {
    try {
      export(_xmlContext.getSerializer(output), serverSchema, importPolicy);
    } catch (IOException except) {
      throw new ImportExportException(except);
    }
  }


  public abstract void export(DocumentHandler docHandler, boolean serverSchema,
      boolean importPolicy) throws ImportExportException;


  public void setSearchDescriptor(SearchDescriptor searchDesc) {
    _searchDesc = searchDesc;
  }


  public SearchDescriptor getSearchDescriptor() {
    return _searchDesc;
  }


  public void setImportDescriptor(ImportDescriptor importDesc) {
    _importDesc = importDesc;
  }


  public ImportDescriptor getImportDescriptor() {
    return _importDesc;
  }


  public void readSearchDescriptor(InputStream input) throws IOException, SAXException {
    readSearchDescriptor(_xmlContext.getParser(), new InputSource(input));
  }


  public void readSearchDescriptor(Reader input) throws IOException, SAXException {
    readSearchDescriptor(_xmlContext.getParser(), new InputSource(input));
  }


  protected void readSearchDescriptor(Parser parser, InputSource input)
      throws IOException, SAXException {
    SearchDescriptor desc;

    desc = new SearchDescriptor();
    parser.setDocumentHandler(desc);
    parser.parse(input);
    setSearchDescriptor(desc);
  }


  protected abstract Consumer createConsumer();


}

