/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.wps.transmute;
import java.io.InputStream;
import org.geoserver.wps.WPSException;
import org.geotools.xml.Configuration;
import com.vividsolutions.jts.geom.Geometry;
/**
* ComplexTransmuter interface
*
* @author Lucas Reed, Refractions Research Inc
*/
public abstract class ComplexTransmuter implements Transmuter {
/**
* Returns absolute URL to the schema which defines the in
*/
abstract public String getSchema(String urlBase);
/**
* Returns the class of the XMLConfiguration used to parse/encode
*
* @return
*/
abstract public Class<?> getXMLConfiguration();
/**
* Returns mime-type of encoded data
*
* @return
*/
abstract public String getMimeType();
/**
* Used to decode external XML documents for use as process inputs
*
* @param stream
* @return
*/
public Object decode(InputStream stream) {
Object decoded = null;
Configuration config = null;
try {
config = (Configuration)(this.getXMLConfiguration().getConstructor().newInstance());
} catch(Exception e) {
throw new WPSException("NoApplicableCode", "Failed to initialize XMLConfiguration");
}
org.geotools.xml.Parser parser = new org.geotools.xml.Parser(config);
try {
decoded = (Geometry)parser.parse(stream);
} catch(Exception e) {
throw new WPSException("NoApplicableCode", "Parsing error " + e);
}
return decoded;
}
/**
* Used to encode document for server storage
*
* @param input
* @return
*/
public Object encode(Object input) {
throw new WPSException("NoApplicableCode", "Unimplemented encoder for ComplexTransmuter.");
}
}