wmcwfsmapresourcewriter.java

esri的ArcGIS Server超级学习模板程序（for java）

/**
 * 
 */
package com.esri.solutions.jitk.data.wmc;

import java.util.Iterator;

import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;

import com.esri.solutions.jitk.datasources.ogc.wfs.FeatureTypeDescription;
import com.esri.solutions.jitk.web.wfs.data.WFSMapResource;
import com.esri.solutions.jitk.web.wfs.data.WFSWebLayerInfo;
import com.esri.solutions.jitk.web.wfs.data.query.WFSQueryFunctionality;

/**
 * @author vlad2928
 *
 */
public class WMCWFSMapResourceWriter extends WMCGISResourceWriter {

	private static final Logger _logger = LogManager.getLogger(WMCWFSMapResourceWriter.class);
	
	protected WMCWFSMapResourceWriter(WFSMapResource resource) {
		super(resource);
	}
	
	/*
	 <Layer hidden="1" queryable="0">
		<Server title="0057978" version="1.0.0" service="OGC:WFS">
			<OnlineResource xlink:href="http://vladp2:8181/wfsconnector/com.esri.wfs.Esrimap/SearchMap_wfs?request=getcapabilities" xlink:type="simple"/>
		</Server>
		<Name/>
		<Title>WorldCountries-0</Title>
		<SRS>EPSG:4326</SRS>
		<FormatList>
			<Format current="1">image/png</Format>
		</FormatList>
	</Layer>

	*/
	
	private StringBuffer serverTagToWMC() {
		
		StringBuffer buf = new StringBuffer();
		
		if(resource != null) {
		
			Tag serverTag = new Tag("Server", new String[][] {{"title", resource.getAlias()}, {"service", "OGC:WFS"}, {"version" , "1.1.0"}}, null, true);
			buf.append(serverTag.open());
				buf.append(attsTag("OnlineResource", new String[][] {{"xlink:href", ((WFSMapResource)resource).getEndPointURL()}, {"xlink:type" , "simple"}}));
			buf.append(serverTag.close());
		
		} else {
			_logger.warn("WFSResource is null.");
		}
			
		return buf;
	}

	/* (non-Javadoc)
	 * @see com.esri.solutions.jitk.data.wmc.IWMCGISResourceWriter#write()
	 */
	public StringBuffer write() {
		
		StringBuffer buf = new StringBuffer();
		
		WFSQueryFunctionality qfunc = (WFSQueryFunctionality)resource.getFunctionality(WFSQueryFunctionality.FUNCTIONALITY_NAME);
		
		StringBuffer serverTagBuffer = serverTagToWMC();
		
		if(serverTagBuffer.length() > 0) {
			
			for(Iterator<WFSWebLayerInfo> i = ((WFSMapResource)resource).getLayers().iterator(); i.hasNext();) {
				WFSWebLayerInfo layer = i.next();
				
				Tag layerTag = new Tag("Layer", new String[][] {{ "hidden", "0"}, {"queryable", (qfunc != null && qfunc.getQueryLayers().contains(layer)) ? "1" : "0"}}, null, true);
				buf.append(layerTag.open());
				
				buf.append(serverTagBuffer);
				
				FeatureTypeDescription desc = layer.getFeatureTypeDescription();
				buf.append(valueTag("Name", desc.getName()));
				buf.append(valueTag("Title", desc.getTitle()));
				buf.append(valueTag("SRS", "EPSG:" + desc.getDefaultSrs().getCode()));
				
				buf.append(layerTag.close());
			}
		}

		return buf;
	}
}