/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
* (c) 2001 - 2013 OpenPlans
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.wps.ppio;
import java.io.InputStream;
import javax.xml.namespace.QName;
import org.apache.commons.io.IOUtils;
import org.geotools.filter.v1_0.OGC;
import org.geotools.filter.v1_0.OGCConfiguration;
import org.geotools.xml.Configuration;
import org.geotools.xml.Encoder;
import org.geotools.xml.Parser;
import org.opengis.filter.Filter;
import org.xml.sax.ContentHandler;
/**
* Parses and encodes an OGC filter using ECQL
*
* @author Andrea Aime - GeoSolutions
*/
public class FilterPPIO extends XMLPPIO {
Configuration xml;
protected FilterPPIO(Class type, String mimeType, QName element) {
super(type, type, mimeType, element);
}
@Override
public Object decode(Object input) throws Exception {
if(input == null) {
return null;
} else if(input instanceof Filter) {
return input;
} else if(input instanceof String) {
return decode(IOUtils.toInputStream((String) input));
} else {
throw new IllegalArgumentException("Cannot convert " + input + " into a Filter object");
}
}
@Override
public Object decode(InputStream input) throws Exception {
Parser p = new Parser(xml);
return p.parse(input);
}
@Override
public void encode(Object obj, ContentHandler handler) throws Exception {
Encoder e = new Encoder(xml);
e.encode(obj, element, handler);
}
public static class Filter10 extends FilterPPIO {
public Filter10() {
super(Filter.class, "text/xml; subtype=filter/1.0", OGC.Filter);
xml = new OGCConfiguration();
}
}
public static class Filter11 extends FilterPPIO {
public Filter11() {
super(Filter.class, "text/xml; subtype=filter/1.1", org.geotools.filter.v1_1.OGC.Filter);
xml = new org.geotools.filter.v1_1.OGCConfiguration();
}
}
}