wmcwmsmapresourcewriter.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.adf.web.wms.data.WMSMapResource;

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

	private static final Logger _logger = LogManager.getLogger(WMCWMSMapResourceWriter.class);
	
	WMSMapResource resource = null;
	
	protected WMCWMSMapResourceWriter(WMSMapResource resource) {
		super(resource);
		this.resource = resource;
	}
	
	private StringBuffer serverTagToWMC() {
		
		StringBuffer buf = new StringBuffer();
		
		if(resource != null && resource.getWmsServerConnection() != null) {
		
			com.esri.wms.client.ServerConnection conn = resource.getWmsServerConnection();
		
			Tag serverTag = new Tag("Server", new String[][] {{"title", resource.getAlias()}, {"service", "OGC:WMS"}, {"version" , conn.getServerVersion()}}, null, true);
			buf.append(serverTag.open());
				buf.append(attsTag("OnlineResource", new String[][] {{"xlink:href", conn.getCapabilitiesServiceURL()}, {"xlink:type" , "simple"}}));
			buf.append(serverTag.close());
		
		} else {
			_logger.warn("WMS resource/WMS server connection is null.");
		}
		
		return buf;
	}

	/*
	<Layer queryable="1" hidden="0">
		
		<Server service="OGC:WMS" version="1.1.0" title="ESA CubeSERV">
			<OnlineResource xlink:type="simple" xlink:href="http://mapserv2.esrin.esa.it/cubestor/cubeserv/cubeserv.cgi"/>
		</Server>
		
		<Name>WORLD_MODIS_1KM:MapAdmin</Name>
		<Title>WORLD_MODIS_1KM</Title>
		<Abstract>Global maps derived from various Earth Observation sensors / WORLD_MODIS_1KM:MapAdmin</Abstract>
		<SRS>EPSG:4326</SRS>
		<FormatList>
			<Format current="1">image/png</Format>
		</FormatList>
		<StyleList>
			<Style current="1">
				<Name>default</Name>
				<Title>default</Title>
				<LegendURL width="16" height="16" format="image/gif">
					<OnlineResource xlink:type="simple" xlink:href="http://mapserv2.esrin.esa.it/cubestor/cubeserv/cubeserv.cgi?VERSION=1.1.0&amp;REQUEST=GetLegendIcon&amp;LAYER=WORLD_MODIS_1KM:MapAdmin&amp;SPATIAL_TYPE=RASTER&amp;STYLE=default&amp;FORMAT=image/gif"/>
				</LegendURL>
			</Style>
		</StyleList>
	</Layer>
	*/

	/* (non-Javadoc)
	 * @see com.esri.solutions.jitk.data.wmc.IWMCGISResourceWriter#write()
	 */
	public StringBuffer write() {
		
		StringBuffer buf = new StringBuffer();
		
		StringBuffer serverTagBuffer = serverTagToWMC();
		
		if(serverTagBuffer.length() > 0) {
			
			for(Iterator<com.esri.wms.client.Layer> i = resource.getWmsMap().getAllLayers().iterator(); i.hasNext();) {
				com.esri.wms.client.Layer layer = i.next();
				
				Tag layerTag = new Tag("Layer", new String[][] {{ "hidden", layer.isVisible() ? "0" : "1"}, {"queryable" , layer.isQueryable() ? "1" : "0"}}, null, true);
				buf.append(layerTag.open());
				buf.append(serverTagBuffer);
				buf.append(valueTag("Name", layer.getName()));
				buf.append(valueTag("Title", layer.getTitle()));
				buf.append(valueTag("Abstract", layer.getAbstract()));
				
				// List of <SRS> supported
				for(Iterator<com.esri.wms.client.SpatialReference> j = resource.getWmsMap().getSpatialReferences().iterator(); j.hasNext();) {
					buf.append(valueTag("SRS", "EPSG:" + j.next().toEPSG()));
				}
				
				// <FormatList> section
				Tag formatListTag = new Tag("FormatList", null, null, true);
				buf.append(formatListTag.open());
				for(Iterator<String> j = resource.getWmsServerConnection().getMapFormats().iterator(); j.hasNext();) {
					String mapFormat = j.next().trim();
					if(mapFormat.equalsIgnoreCase("image/png")) {
						buf.append(attsValueTag("Format", new String[][] {{ "current", "1"}}, mapFormat));
					} else {
						buf.append(valueTag("Format", mapFormat));
					}
				}
				buf.append(formatListTag.close());
				
				// <StyleList> section 
				/*
				<StyleList>
					<Style current="1">
						
						<Name>default</Name>
						<Title>default</Title>
						<Abstract></Abstract> <!-- Optional -->
						
						<LegendURL width="16" height="16" format="image/gif"> <!-- Optional -->
							<OnlineResource xlink:type="simple" xlink:href="http://mapserv2.esrin.esa.it/cubestor/cubeserv/cubeserv.cgi?VERSION=1.1.0&amp;REQUEST=GetLegendIcon&amp;LAYER=WORLD_MODIS_1KM:MapAdmin&amp;SPATIAL_TYPE=RASTER&amp;STYLE=default&amp;FORMAT=image/gif"/>
						</LegendURL>
					
						.. OR ..
					
					<SLD>
						<Name>default</Name>
						<Title>default</Title> <!-- Optional -->
						1) <OnlineResource xmlns:xlink="http://www.w3.org/TR/xlink" xlink:type="simple" xlink:href=攈ttp://example.org/this/is/an/example/link/to/the/sld">
						2) <StyledLayerDescriptor></StyledLayerDescriptor>
						3) <FeatureTypeStyle></FeatureTypeStyle>
					</SLD>
					
					</Style>
				</StyleList>
				*/
				
				buf.append(layerTag.close());
			}
		}
		
		return buf;
	}
}