package org.geoserver.kml.builder;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;
import org.apache.commons.lang.ObjectUtils;
import org.apache.commons.lang.SystemUtils;
import org.geoserver.kml.KmlEncodingContext;
import org.geoserver.kml.decorator.LookAtDecoratorFactory;
import org.geoserver.kml.utils.LookAtOptions;
import org.geoserver.wms.GetMapRequest;
import org.geoserver.wms.MapLayerInfo;
import org.geoserver.wms.WMSMapContent;
import org.geoserver.wms.WMSRequests;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.geotools.styling.Style;
import org.geotools.util.logging.Logging;
import com.vividsolutions.jts.geom.Envelope;
import de.micromata.opengis.kml.v_2_2_0.Document;
import de.micromata.opengis.kml.v_2_2_0.Link;
import de.micromata.opengis.kml.v_2_2_0.LookAt;
import de.micromata.opengis.kml.v_2_2_0.NetworkLink;
import de.micromata.opengis.kml.v_2_2_0.ViewRefreshMode;
/**
* Builds a KML document that has a network link for each layer, no superoverlays involved
*
* @author Andrea Aime - GeoSolutions
*
*/
public class SimpleNetworkLinkBuilder extends AbstractNetworkLinkBuilder {
static final Logger LOGGER = Logging.getLogger(SimpleNetworkLinkBuilder.class);
public SimpleNetworkLinkBuilder(KmlEncodingContext context) {
super(context);
}
@Override
void encodeDocumentContents(Document container) {
WMSMapContent mapContent = context.getMapContent();
GetMapRequest request = context.getRequest();
Map formatOptions = request.getFormatOptions();
LookAtDecoratorFactory lookAtFactory = new LookAtDecoratorFactory();
LookAtOptions lookAtOptions = new LookAtOptions(formatOptions);
// compute the layer bounds and the total bounds
List<ReferencedEnvelope> layerBounds = new ArrayList<ReferencedEnvelope>(mapContent
.layers().size());
ReferencedEnvelope aggregatedBounds = computePerLayerQueryBounds(mapContent, layerBounds,
null);
if (aggregatedBounds != null) {
LookAt la = lookAtFactory.buildLookAt(aggregatedBounds, lookAtOptions, false);
container.setAbstractView(la);
}
final List<MapLayerInfo> layers = request.getLayers();
final List<Style> styles = request.getStyles();
for (int i = 0; i < layers.size(); i++) {
MapLayerInfo layerInfo = layers.get(i);
NetworkLink nl = container.createAndAddNetworkLink();
nl.setName(layerInfo.getName());
nl.setVisibility(true);
nl.setOpen(true);
// look at for this layer
Envelope requestBox = context.getRequestBoxWGS84();
if (requestBox != null) {
LookAt la = lookAtFactory.buildLookAt(requestBox, lookAtOptions, false);
nl.setAbstractView(la);
}
// set bbox to null so its not included in the request, google
// earth will append it for us
GetMapRequest requestCopy = (GetMapRequest) request.clone();
requestCopy.setBbox(null);
String style = i < styles.size() ? styles.get(i).getName() : null;
String href = WMSRequests.getGetMapUrl(requestCopy, layers.get(i).getName(), i, style,
null, null);
try {
// WMSRequests.getGetMapUrl returns a URL encoded query string, but GoogleEarth
// 6 doesn't like URL encoded parameters. See GEOS-4483
href = URLDecoder.decode(href, "UTF-8");
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
Link url = nl.createAndSetUrl();
url.setHref(href);
url.setViewRefreshMode(ViewRefreshMode.ON_STOP);
url.setViewRefreshTime(1);
url.setViewBoundScale(1);
}
}
}