/* 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.ppio;
import java.io.InputStream;
import java.io.StringReader;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.sld.SLDConfiguration;
import org.geotools.sld.bindings.SLD;
import org.geotools.styling.NamedLayer;
import org.geotools.styling.Style;
import org.geotools.styling.StyleFactory;
import org.geotools.styling.StyledLayer;
import org.geotools.styling.StyledLayerDescriptor;
import org.geotools.xml.Configuration;
import org.geotools.xml.Encoder;
import org.geotools.xml.Parser;
import org.xml.sax.ContentHandler;
/**
* Handles SLD 1.0 styles
*
* @author Andrea Aime - GeoSolutions
*/
public class SLDStylePPIO extends XMLPPIO {
Configuration sldConfiguration;
protected SLDStylePPIO() {
super(Style.class, Style.class, "text/xml; subtype=sld/1.0.0", SLD.STYLEDLAYERDESCRIPTOR);
sldConfiguration = new SLDConfiguration();
}
@Override
public Object decode(InputStream input) throws Exception {
Parser p = new Parser(sldConfiguration);
// extract the first style in the first sld
StyledLayerDescriptor sld = (StyledLayerDescriptor) p.parse(input);
NamedLayer styledLayer = (NamedLayer) sld.getStyledLayers()[0];
return styledLayer.getStyles()[0];
}
@Override
public void encode(Object obj, ContentHandler handler) throws Exception {
StyleFactory sf = CommonFactoryFinder.getStyleFactory(null);
StyledLayerDescriptor sld = sf.createStyledLayerDescriptor();
NamedLayer nl = sf.createNamedLayer();
nl.setName("");
nl.styles().add((Style) obj);
sld.setStyledLayers(new StyledLayer[] { nl });
Encoder e = new Encoder(sldConfiguration);
e.encode(sld, element, handler);
}
@Override
public Object decode(Object input) throws Exception {
Parser p = new Parser(sldConfiguration);
// extract the first style in the first sld
StyledLayerDescriptor sld = (StyledLayerDescriptor) p.parse(new StringReader((String) input));
NamedLayer styledLayer = (NamedLayer) sld.getStyledLayers()[0];
return styledLayer.getStyles()[0];
}
}