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comparison flys-client/src/main/java/de/intevation/flys/client/server/GCServiceImpl.java @ 1411:63be3137abac

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Parse and display WMS layers supported by a user specified WMS service. flys-client/trunk@3298 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 21 Nov 2011 21:00:03 +0000
parents ec6e4dad1279
children 3484cbfaf369
comparison
equal deleted inserted replaced
1410:6bb2c1ffab2b 1411:63be3137abac
3 import java.io.InputStream; 3 import java.io.InputStream;
4 import java.io.IOException; 4 import java.io.IOException;
5 import java.net.MalformedURLException; 5 import java.net.MalformedURLException;
6 import java.net.URL; 6 import java.net.URL;
7 import java.net.URLConnection; 7 import java.net.URLConnection;
8 import java.util.ArrayList;
9 import java.util.List;
8 10
9 import javax.xml.xpath.XPathConstants; 11 import javax.xml.xpath.XPathConstants;
10 12
11 import com.google.gwt.user.server.rpc.RemoteServiceServlet; 13 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
12 14
13 import org.w3c.dom.Document; 15 import org.w3c.dom.Document;
14 import org.w3c.dom.Node; 16 import org.w3c.dom.Node;
17 import org.w3c.dom.NodeList;
15 18
16 import org.apache.log4j.Logger; 19 import org.apache.log4j.Logger;
17 20
18 import de.intevation.artifacts.common.utils.XMLUtils; 21 import de.intevation.artifacts.common.utils.XMLUtils;
19 22
20 import de.intevation.flys.client.shared.exceptions.ServerException; 23 import de.intevation.flys.client.shared.exceptions.ServerException;
21 import de.intevation.flys.client.shared.model.Capabilities; 24 import de.intevation.flys.client.shared.model.Capabilities;
22 import de.intevation.flys.client.shared.model.ContactInformation; 25 import de.intevation.flys.client.shared.model.ContactInformation;
26 import de.intevation.flys.client.shared.model.WMSLayer;
23 import de.intevation.flys.client.client.services.GCService; 27 import de.intevation.flys.client.client.services.GCService;
24 28
25 29
26 /** 30 /**
27 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> 31 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
73 "/WMS_Capabilities/Service/Fees/text()"; 77 "/WMS_Capabilities/Service/Fees/text()";
74 78
75 public static final String XPATH_ACCESS_CONSTRAINTS = 79 public static final String XPATH_ACCESS_CONSTRAINTS =
76 "/WMS_Capabilities/Service/AccessConstraints/text()"; 80 "/WMS_Capabilities/Service/AccessConstraints/text()";
77 81
82 public static final String XPATH_LAYERS =
83 "/WMS_Capabilities/Capability/Layer";
84
78 85
79 private Logger logger = Logger.getLogger(GCServiceImpl.class); 86 private Logger logger = Logger.getLogger(GCServiceImpl.class);
80 87
81 88
82 public Capabilities query(String path) 89 public Capabilities query(String path)
147 ContactInformation ci = parseContactInformation(contactInformation); 154 ContactInformation ci = parseContactInformation(contactInformation);
148 155
149 logger.debug("Found fees: " + fees); 156 logger.debug("Found fees: " + fees);
150 logger.debug("Found access constraints: " + accessConstraints); 157 logger.debug("Found access constraints: " + accessConstraints);
151 158
152 // TODO PARSE LAYERS 159 NodeList layerNodes = (NodeList) XMLUtils.xpath(
160 doc,
161 XPATH_LAYERS,
162 XPathConstants.NODESET);
163
164 List<WMSLayer> layers = parseLayers(layerNodes);
153 165
154 return new Capabilities( 166 return new Capabilities(
155 title, 167 title,
156 onlineResource, 168 onlineResource,
157 ci, 169 ci,
158 fees, 170 fees,
159 accessConstraints, 171 accessConstraints,
160 null); 172 layers);
161 } 173 }
162 174
163 175
164 protected ContactInformation parseContactInformation(Node node) { 176 protected ContactInformation parseContactInformation(Node node) {
165 String person = (String) XMLUtils.xpath( 177 String person = (String) XMLUtils.xpath(
206 ci.setPhone(phone); 218 ci.setPhone(phone);
207 ci.setEmail(email); 219 ci.setEmail(email);
208 220
209 return ci; 221 return ci;
210 } 222 }
223
224
225 protected List<WMSLayer> parseLayers(NodeList layersNode) {
226 int len = layersNode != null ? layersNode.getLength() : 0;
227
228 logger.debug("Node has " + len + " layers.");
229
230 List<WMSLayer> layers = new ArrayList<WMSLayer>(len);
231
232 for (int i = 0; i < len; i++) {
233 layers.add(parseLayer(layersNode.item(i)));
234 }
235
236 return layers;
237 }
238
239
240 protected WMSLayer parseLayer(Node layerNode) {
241 String title = (String) XMLUtils.xpath(
242 layerNode,
243 "Title/text()",
244 XPathConstants.STRING);
245
246 String name = (String) XMLUtils.xpath(
247 layerNode,
248 "Name/text()",
249 XPathConstants.STRING);
250
251 logger.debug("Found layers: " + title + "(" + name + ")");
252
253 NodeList layersNodes = (NodeList) XMLUtils.xpath(
254 layerNode,
255 "Layer",
256 XPathConstants.NODESET);
257
258 List<WMSLayer> layers = parseLayers(layersNodes);
259
260 return new WMSLayer(title, name, layers);
261 }
211 } 262 }
212 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : 263 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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