svn-gvsig-desktop / branches / v10 / applications / appCatalogAndGazetteerClient / src / es / gva / cit / gazetteer / wfs / drivers / WFSServiceDriver.java @ 18865
History | View | Annotate | Download (8.76 KB)
1 |
|
---|---|
2 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
3 |
*
|
4 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 2
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
19 |
*
|
20 |
* For more information, contact:
|
21 |
*
|
22 |
* Generalitat Valenciana
|
23 |
* Conselleria d'Infraestructures i Transport
|
24 |
* Av. Blasco Ib??ez, 50
|
25 |
* 46010 VALENCIA
|
26 |
* SPAIN
|
27 |
*
|
28 |
* +34 963862235
|
29 |
* gvsig@gva.es
|
30 |
* www.gvsig.gva.es
|
31 |
*
|
32 |
* or
|
33 |
*
|
34 |
* IVER T.I. S.A
|
35 |
* Salamanca 50
|
36 |
* 46005 Valencia
|
37 |
* Spain
|
38 |
*
|
39 |
* +34 963163400
|
40 |
* dac@iver.es
|
41 |
*/
|
42 |
package es.gva.cit.gazetteer.wfs.drivers; |
43 |
import java.io.File; |
44 |
import java.net.MalformedURLException; |
45 |
import java.net.URI; |
46 |
import java.net.URISyntaxException; |
47 |
import java.util.ArrayList; |
48 |
import java.util.Hashtable; |
49 |
import java.util.Iterator; |
50 |
import java.util.Vector; |
51 |
|
52 |
import org.gvsig.gpe.GPEParser; |
53 |
import org.gvsig.gpe.exceptions.GPEParserCreationException; |
54 |
import org.gvsig.gpe.gml.GPEGmlSFP0Parser; |
55 |
import org.gvsig.remoteClient.gml.exceptions.GMLException; |
56 |
import org.gvsig.remoteClient.gml.schemas.XMLElement; |
57 |
import org.gvsig.remoteClient.gml.types.XMLComplexType; |
58 |
import org.gvsig.remoteClient.wfs.WFSClient; |
59 |
import org.gvsig.remoteClient.wfs.WFSFeature; |
60 |
import org.gvsig.remoteClient.wfs.WFSStatus; |
61 |
import org.gvsig.remoteClient.wfs.filters.FilterEncoding; |
62 |
|
63 |
import com.iver.utiles.swing.jcomboServer.ServerData; |
64 |
|
65 |
import es.gva.cit.catalog.drivers.DiscoveryServiceCapabilities; |
66 |
import es.gva.cit.catalog.utils.CatalogConstants; |
67 |
import es.gva.cit.gazetteer.drivers.AbstractGazetteerServiceDriver; |
68 |
import es.gva.cit.gazetteer.drivers.GazetteerCapabilities; |
69 |
import es.gva.cit.gazetteer.querys.Feature; |
70 |
import es.gva.cit.gazetteer.querys.FeatureType; |
71 |
import es.gva.cit.gazetteer.querys.FeatureTypeAttribute; |
72 |
import es.gva.cit.gazetteer.querys.GazetteerQuery; |
73 |
import es.gva.cit.gazetteer.utils.GazetteerFormatter; |
74 |
|
75 |
/**
|
76 |
* Driver for the WFS protocol
|
77 |
* @author Jorge Piera Llodra (piera_jor@gva.es)
|
78 |
*/
|
79 |
public class WFSServiceDriver extends AbstractGazetteerServiceDriver { |
80 |
protected WFSClient client = null; |
81 |
protected WFSStatus status = null; |
82 |
|
83 |
/*
|
84 |
* (non-Javadoc)
|
85 |
* @see es.gva.cit.catalogClient.drivers.IDiscoveryServiceDriver#getCapabilities(java.net.URI)
|
86 |
*/
|
87 |
public DiscoveryServiceCapabilities getCapabilities(URI uri) { |
88 |
GazetteerCapabilities capabilities = new GazetteerCapabilities();
|
89 |
String sURL = null; |
90 |
try {
|
91 |
sURL = uri.toURL().toString(); |
92 |
} catch (MalformedURLException e) { |
93 |
setServerAnswerReady("errorServerNotFound");
|
94 |
return null; |
95 |
} |
96 |
status = new WFSStatus(sURL);
|
97 |
try {
|
98 |
client = new WFSClient(sURL);
|
99 |
client.getCapabilities(status, true, null); |
100 |
} catch (Exception e) { |
101 |
capabilities.setServerMessage(e.toString()); |
102 |
return capabilities;
|
103 |
} |
104 |
setServerAnswerReady(client.getServiceInformation().name); |
105 |
Hashtable features = client.getFeatures();
|
106 |
setFeatureTypes(convertFeatureNames(features)); |
107 |
capabilities.setServerMessage(client.getServiceInformation().name + |
108 |
client.getServiceInformation().abstr); |
109 |
capabilities.setFeatureTypes(getFeatureTypes()); |
110 |
return capabilities;
|
111 |
} |
112 |
|
113 |
/**
|
114 |
* Convert the features from the remote services format to
|
115 |
* the gazetteer format
|
116 |
* @param features
|
117 |
* @return
|
118 |
*/
|
119 |
private FeatureType[] convertFeatureNames(Hashtable features) { |
120 |
Iterator it = features.keySet().iterator();
|
121 |
FeatureType[] featureTypes = new FeatureType[features.size()]; |
122 |
int i = 0; |
123 |
while (it.hasNext()){
|
124 |
String featureName = (String)it.next(); |
125 |
WFSFeature feature = (WFSFeature)features.get(featureName); |
126 |
featureTypes[i] = new FeatureType(featureName);
|
127 |
featureTypes[i].setTitle(feature.getTitle()); |
128 |
i++; |
129 |
} |
130 |
return featureTypes;
|
131 |
} |
132 |
|
133 |
/*
|
134 |
* (non-Javadoc)
|
135 |
* @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#describeFeatureType(java.net.URI, java.lang.String)
|
136 |
*/
|
137 |
public FeatureTypeAttribute[] describeFeatureType(URI uri, String feature) { |
138 |
status.setFeatureName(feature); |
139 |
try{
|
140 |
client.describeFeatureType(status, false, null); |
141 |
}catch (Exception e){ |
142 |
//Impossible to retrieve the attributes
|
143 |
return new FeatureTypeAttribute[0]; |
144 |
} |
145 |
WFSFeature wfsFeature = (WFSFeature)client.getFeatures().get(feature); |
146 |
if ((wfsFeature.getSrs() != null) && (wfsFeature.getSrs().size() > 0)){ |
147 |
this.setProjection((String)wfsFeature.getSrs().get(0)); |
148 |
} |
149 |
return covertFeatuteAttributes(wfsFeature);
|
150 |
} |
151 |
|
152 |
/*
|
153 |
* (non-Javadoc)
|
154 |
* @see es.gva.cit.gazetteer.drivers.AsbtractGazetteerServiceDriver#isDescribeFeatureTypeNeeded()
|
155 |
*/
|
156 |
public boolean isDescribeFeatureTypeNeeded(){ |
157 |
return true; |
158 |
} |
159 |
|
160 |
/**
|
161 |
* Convert the feature attributes
|
162 |
* @param feature
|
163 |
* a Remote clients feature
|
164 |
* @return
|
165 |
* A list of attributes
|
166 |
*/
|
167 |
private FeatureTypeAttribute[] covertFeatuteAttributes(WFSFeature feature) { |
168 |
XMLElement element = (XMLElement)feature.getFields().get(0);
|
169 |
XMLComplexType type = (XMLComplexType)element.getEntityType(); |
170 |
Vector fields = type.getAttributes();
|
171 |
FeatureTypeAttribute[] attributes = new FeatureTypeAttribute[fields.size()]; |
172 |
for (int i=0 ; i<fields.size(); i++){ |
173 |
XMLElement child = (XMLElement)fields.get(i); |
174 |
attributes[i] = new FeatureTypeAttribute(child.getName(),0,false,child.getEntityType().getName()); |
175 |
} |
176 |
return attributes;
|
177 |
} |
178 |
|
179 |
/*
|
180 |
* (non-Javadoc)
|
181 |
* @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#getFeature(java.net.URI, es.gva.cit.gazetteer.querys.Query)
|
182 |
*/
|
183 |
public Feature[] getFeature(URI uri, GazetteerQuery query) throws GMLException { |
184 |
//Set the filter
|
185 |
String sQuery = getFilterSQL(query);
|
186 |
if (sQuery != null){ |
187 |
status.setFilterQuery(sQuery); |
188 |
} |
189 |
status.setFields(new String[0]); |
190 |
try{
|
191 |
File file = client.getFeature(status, false, null); |
192 |
return parseOutputFile(file,query.getFieldAttribute());
|
193 |
}catch(Exception e){ |
194 |
e.printStackTrace(); |
195 |
return new Feature[0]; |
196 |
} |
197 |
} |
198 |
|
199 |
/**
|
200 |
* Parses the GML file
|
201 |
* @param file
|
202 |
* @return
|
203 |
* @throws GPEParserCreationException
|
204 |
* @throws URISyntaxException
|
205 |
*/
|
206 |
protected Feature[] parseOutputFile(File file, String fieldAttribute) throws URISyntaxException, GPEParserCreationException { |
207 |
URI uri = file.toURI();
|
208 |
GPEParser parser = new GPEGmlSFP0Parser(null,null); |
209 |
WFSGPEErrorHandler errorHandler = new WFSGPEErrorHandler();
|
210 |
WFSGPEContentHandler contentHandler = new WFSGPEContentHandler(fieldAttribute);
|
211 |
parser.parse(contentHandler, errorHandler, uri); |
212 |
ArrayList features = contentHandler.getFeatures();
|
213 |
Feature[] auxFeatures = new Feature[features.size()]; |
214 |
for (int i=0 ; i<features.size() ; i++){ |
215 |
auxFeatures[i] = (Feature)features.get(i); |
216 |
} |
217 |
return auxFeatures;
|
218 |
} |
219 |
|
220 |
/**
|
221 |
* Creates a SQL filter to do the search
|
222 |
* @return
|
223 |
* A standard SQL query
|
224 |
*/
|
225 |
protected String getFilterSQL(GazetteerQuery query){ |
226 |
StringBuffer buffer = new StringBuffer(); |
227 |
if ((query.getName() == null) || (query.getName().equals(""))){ |
228 |
return null; |
229 |
} |
230 |
if (query.getNameFilter().equals(CatalogConstants.EXACT_WORDS)){
|
231 |
buffer.append("(" + query.getFieldAttribute() + " = " + query.getName() + ")"); |
232 |
}else{
|
233 |
String conector = null; |
234 |
if (query.getNameFilter().equals(CatalogConstants.ALL_WORDS)){
|
235 |
conector = "AND";
|
236 |
}else if (query.getNameFilter().equals(CatalogConstants.ANY_WORD)){ |
237 |
conector = "OR";
|
238 |
} |
239 |
String[] words = query.getName().split(" "); |
240 |
for (int i=0 ; i<words.length ; i++){ |
241 |
buffer.append("(" + query.getFieldAttribute() + " = " + words[i] + ")"); |
242 |
if (i < words.length - 1){ |
243 |
buffer.append(" " + conector + " "); |
244 |
} |
245 |
} |
246 |
} |
247 |
FilterEncoding fe = GazetteerFormatter.createFilter(); |
248 |
fe.setQuery(buffer.toString()); |
249 |
return fe.toString();
|
250 |
} |
251 |
|
252 |
/*
|
253 |
* (non-Javadoc)
|
254 |
* @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#isProtocolSupported(java.net.URI)
|
255 |
*/
|
256 |
public boolean isProtocolSupported(URI uri) { |
257 |
return true; |
258 |
} |
259 |
|
260 |
/*
|
261 |
* (non-Javadoc)
|
262 |
* @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#getDefaultPort()
|
263 |
*/
|
264 |
public int getDefaultPort() { |
265 |
return 80; |
266 |
} |
267 |
|
268 |
/*
|
269 |
* (non-Javadoc)
|
270 |
* @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#getDefaultSchema()
|
271 |
*/
|
272 |
public String getDefaultSchema() { |
273 |
return "http"; |
274 |
} |
275 |
|
276 |
/*
|
277 |
* (non-Javadoc)
|
278 |
* @see es.gva.cit.gazetteer.drivers.IGazetteerServiceDriver#getServiceName()
|
279 |
*/
|
280 |
public String getServiceName() { |
281 |
return ServerData.SERVER_SUBTYPE_GAZETTEER_WFS;
|
282 |
} |
283 |
} |