root / branches / v05 / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_1_1 / WMSProtocolHandler1_1_1.java @ 4036
History | View | Annotate | Download (14.4 KB)
1 |
|
---|---|
2 |
package org.gvsig.remoteClient.wms.wms_1_1_1; |
3 |
|
4 |
import java.io.ByteArrayInputStream; |
5 |
import java.io.File; |
6 |
import java.io.FileNotFoundException; |
7 |
import java.io.FileReader; |
8 |
import java.io.IOException; |
9 |
import java.io.InputStreamReader; |
10 |
import java.io.Reader; |
11 |
import java.util.ArrayList; |
12 |
import java.util.TreeMap; |
13 |
|
14 |
import org.gvsig.remoteClient.utils.CapabilitiesTags; |
15 |
import org.gvsig.remoteClient.utils.ExceptionTags; |
16 |
import org.kxml2.io.KXmlParser; |
17 |
import org.xmlpull.v1.XmlPullParserException; |
18 |
|
19 |
/**
|
20 |
* <p>
|
21 |
* Describes the handler to comunicate to a WMS 1.1.1
|
22 |
* </p>
|
23 |
*/
|
24 |
public class WMSProtocolHandler1_1_1 extends org.gvsig.remoteClient.wms.WMSProtocolHandler { |
25 |
private WMSLayer1_1_1 fakeRootLayer;
|
26 |
|
27 |
public WMSProtocolHandler1_1_1()
|
28 |
{ |
29 |
this.version = "1.1.1"; |
30 |
this.name = "WMS1.1.1"; |
31 |
this.serviceInfo = new ServiceInformation(); |
32 |
this.layers = new TreeMap(); |
33 |
} |
34 |
|
35 |
//------------------------------------------------------------------------------
|
36 |
// Parsing methods....
|
37 |
//------------------------------------------------------------------------------
|
38 |
/**
|
39 |
* <p>Parse the xml data retrieved from the WMS, it will parse the WMS Capabilities</p>
|
40 |
*
|
41 |
*/
|
42 |
public void parse(File f) |
43 |
{ |
44 |
FileReader reader = null; |
45 |
try
|
46 |
{ |
47 |
reader = new FileReader(f); |
48 |
} |
49 |
catch(FileNotFoundException ex) { |
50 |
ex.printStackTrace(); |
51 |
} |
52 |
|
53 |
int tag;
|
54 |
KXmlParser kxmlParser = null;
|
55 |
kxmlParser = new KXmlParser();
|
56 |
try
|
57 |
{ |
58 |
kxmlParser.setInput(reader); |
59 |
kxmlParser.nextTag(); |
60 |
if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
|
61 |
{ |
62 |
kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
|
63 |
tag = kxmlParser.nextTag(); |
64 |
while(tag != KXmlParser.END_DOCUMENT)
|
65 |
{ |
66 |
switch(tag)
|
67 |
{ |
68 |
|
69 |
case KXmlParser.START_TAG:
|
70 |
if (kxmlParser.getName().compareTo(CapabilitiesTags.SERVICE )==0) |
71 |
{ |
72 |
parseServiceTag(kxmlParser); |
73 |
} |
74 |
else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
75 |
{ |
76 |
parseCapabilityTag(kxmlParser); |
77 |
} |
78 |
break;
|
79 |
case KXmlParser.END_TAG:
|
80 |
break;
|
81 |
case KXmlParser.TEXT:
|
82 |
//System.out.println("[TEXT]["+kxmlParser.getText()+"]");
|
83 |
break;
|
84 |
} |
85 |
tag = kxmlParser.next(); |
86 |
} |
87 |
kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
88 |
} |
89 |
} |
90 |
catch(XmlPullParserException parser_ex){
|
91 |
parser_ex.printStackTrace(); |
92 |
} |
93 |
catch (IOException ioe) { |
94 |
ioe.printStackTrace(); |
95 |
} finally {
|
96 |
|
97 |
} |
98 |
// In the parsing process the layer has been filled
|
99 |
} |
100 |
|
101 |
/**
|
102 |
* <p>Parses the Service Information </p>
|
103 |
*/
|
104 |
private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
105 |
{ |
106 |
int currentTag;
|
107 |
boolean end = false; |
108 |
|
109 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
|
110 |
currentTag = parser.next(); |
111 |
|
112 |
while (!end)
|
113 |
{ |
114 |
switch(currentTag)
|
115 |
{ |
116 |
case KXmlParser.START_TAG:
|
117 |
if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
118 |
{ |
119 |
serviceInfo.name = parser.nextText(); |
120 |
} |
121 |
else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
122 |
{ |
123 |
serviceInfo.title = parser.nextText(); |
124 |
} |
125 |
else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
126 |
{ |
127 |
serviceInfo.abstr = parser.nextText(); |
128 |
} |
129 |
else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
130 |
{ |
131 |
String value = new String(); |
132 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
133 |
if (value != null){ |
134 |
serviceInfo.online_resource = value; |
135 |
} |
136 |
} |
137 |
else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
138 |
(parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
|
139 |
{ |
140 |
parser.skipSubTree(); |
141 |
} |
142 |
break;
|
143 |
case KXmlParser.END_TAG:
|
144 |
if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
145 |
end = true;
|
146 |
break;
|
147 |
case KXmlParser.TEXT:
|
148 |
break;
|
149 |
} |
150 |
if (!end)
|
151 |
currentTag = parser.next(); |
152 |
} |
153 |
parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
|
154 |
} |
155 |
/**
|
156 |
* <p>Parses the Capability Tag </p>
|
157 |
*/
|
158 |
private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
159 |
{ |
160 |
int currentTag;
|
161 |
boolean end = false; |
162 |
|
163 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
|
164 |
currentTag = parser.next(); |
165 |
|
166 |
while (!end)
|
167 |
{ |
168 |
switch(currentTag)
|
169 |
{ |
170 |
case KXmlParser.START_TAG:
|
171 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
172 |
{ |
173 |
parseRequestTag(parser); |
174 |
} |
175 |
else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
176 |
{ |
177 |
//TODO:
|
178 |
//Add to serviceInfo the supported formats for the exceptions????
|
179 |
} |
180 |
else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
181 |
{ |
182 |
WMSLayer1_1_1 lyr = new WMSLayer1_1_1();
|
183 |
lyr.parse(parser, layers); |
184 |
|
185 |
if (rootLayer == null) |
186 |
rootLayer = lyr; |
187 |
else {
|
188 |
// Handles when there is no general root layer, will use
|
189 |
// a fake non-queryable one.
|
190 |
if (!rootLayer.equals(getFakeRootLayer())){
|
191 |
WMSLayer1_1_1 aux = (WMSLayer1_1_1) rootLayer; |
192 |
rootLayer = getFakeRootLayer(); |
193 |
rootLayer.getChildren().add(aux); |
194 |
} |
195 |
rootLayer.getChildren().add(lyr); |
196 |
} |
197 |
|
198 |
if (lyr.getName()!=null) |
199 |
layers.put(lyr.getName(), lyr); |
200 |
|
201 |
// Collection layerCollection = layers.values();
|
202 |
// Iterator iter = layerCollection.iterator();
|
203 |
// while (iter.hasNext())
|
204 |
// {
|
205 |
// WMSLayer1_1_1 layer = (WMSLayer1_1_1)iter.next();
|
206 |
// //Add all the SRS that the layer supports to the WMSProtocolHandler if they dont exist already
|
207 |
// for (i=0;i<layer.getAllSrs().size();i++)
|
208 |
// {
|
209 |
//// if (!layer.srs.contains(layer.getAllSrs().elementAt(i)))
|
210 |
//// {
|
211 |
//// this.srs.add(layer.getAllSrs().elementAt(i));
|
212 |
//// }
|
213 |
// }
|
214 |
// }
|
215 |
} |
216 |
else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
217 |
(parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
|
218 |
|
219 |
{ |
220 |
parser.skipSubTree(); |
221 |
} |
222 |
break;
|
223 |
case KXmlParser.END_TAG:
|
224 |
if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
225 |
end = true;
|
226 |
break;
|
227 |
case KXmlParser.TEXT:
|
228 |
break;
|
229 |
} |
230 |
currentTag = parser.next(); |
231 |
} |
232 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
|
233 |
} |
234 |
|
235 |
/**
|
236 |
* <p>Parses the Request tag </p>
|
237 |
*/
|
238 |
private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
239 |
{ |
240 |
int currentTag;
|
241 |
boolean end = false; |
242 |
|
243 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
|
244 |
currentTag = parser.next(); |
245 |
|
246 |
while (!end)
|
247 |
{ |
248 |
switch(currentTag)
|
249 |
{ |
250 |
case KXmlParser.START_TAG:
|
251 |
if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
252 |
{ |
253 |
serviceInfo.operations.put(CapabilitiesTags.GETCAPABILITIES, null);
|
254 |
} |
255 |
else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
256 |
{ |
257 |
// put a null to this key?
|
258 |
// or leave it like it was with a CODE in a vector specifying this operation.
|
259 |
// WMSProtocolHandler.GETMAP_OPERATION
|
260 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
|
261 |
parseGetMapTag(parser); |
262 |
} |
263 |
else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
264 |
{ |
265 |
//serviceInfo.operations.put(WMSProtocolHandler.GETFEATUREINFO_OPERATION)
|
266 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
|
267 |
parseGetFeatureInfoTag(parser); |
268 |
} |
269 |
else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
270 |
{ |
271 |
//serviceInfo.operations.put(WMSProtocolHandler.DESCRIBELAYER_OPERATION)
|
272 |
serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
|
273 |
} |
274 |
break;
|
275 |
case KXmlParser.END_TAG:
|
276 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
277 |
end = true;
|
278 |
break;
|
279 |
case KXmlParser.TEXT:
|
280 |
break;
|
281 |
} |
282 |
currentTag = parser.next(); |
283 |
} |
284 |
// TODO: does not get such a tag when arrives here!!!!!!
|
285 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
|
286 |
} |
287 |
|
288 |
/**
|
289 |
* <p>Parses the GetMap tag </p>
|
290 |
*/
|
291 |
private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
292 |
{ |
293 |
int currentTag;
|
294 |
boolean end = false; |
295 |
|
296 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
|
297 |
currentTag = parser.next(); |
298 |
|
299 |
while (!end)
|
300 |
{ |
301 |
switch(currentTag)
|
302 |
{ |
303 |
case KXmlParser.START_TAG:
|
304 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
305 |
{ |
306 |
serviceInfo.formats.add(parser.nextText()); |
307 |
} |
308 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
309 |
{ |
310 |
currentTag = parser.nextTag(); |
311 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
312 |
{ |
313 |
currentTag = parser.nextTag(); |
314 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
315 |
{ |
316 |
currentTag = parser.nextTag(); |
317 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
318 |
{ |
319 |
String value = new String(); |
320 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
321 |
if (value != null){ |
322 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
323 |
} |
324 |
} |
325 |
} |
326 |
} |
327 |
} |
328 |
break;
|
329 |
case KXmlParser.END_TAG:
|
330 |
if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
331 |
end = true;
|
332 |
break;
|
333 |
case KXmlParser.TEXT:
|
334 |
break;
|
335 |
} |
336 |
currentTag = parser.next(); |
337 |
} |
338 |
} |
339 |
|
340 |
/**
|
341 |
* <p>Parses the GetMap tag </p>
|
342 |
*/
|
343 |
private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
344 |
{ |
345 |
int currentTag;
|
346 |
boolean end = false; |
347 |
|
348 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
|
349 |
currentTag = parser.next(); |
350 |
|
351 |
while (!end)
|
352 |
{ |
353 |
switch(currentTag)
|
354 |
{ |
355 |
case KXmlParser.START_TAG:
|
356 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
357 |
{ |
358 |
//TODO:
|
359 |
// add the supported formats by the GetFeatureInfo request
|
360 |
//serviceInfo.formats.add(parser.nextText());
|
361 |
} |
362 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
363 |
{ |
364 |
currentTag = parser.nextTag(); |
365 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
366 |
{ |
367 |
currentTag = parser.nextTag(); |
368 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
369 |
{ |
370 |
currentTag = parser.nextTag(); |
371 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
372 |
{ |
373 |
String value = new String(); |
374 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
375 |
if (value != null){ |
376 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
377 |
} |
378 |
} |
379 |
} |
380 |
} |
381 |
} |
382 |
break;
|
383 |
case KXmlParser.END_TAG:
|
384 |
if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
385 |
end = true;
|
386 |
break;
|
387 |
case KXmlParser.TEXT:
|
388 |
break;
|
389 |
} |
390 |
currentTag = parser.next(); |
391 |
} |
392 |
} |
393 |
|
394 |
private WMSLayer1_1_1 getFakeRootLayer(){
|
395 |
if (fakeRootLayer == null){ |
396 |
fakeRootLayer = new WMSLayer1_1_1();
|
397 |
fakeRootLayer.setTitle(serviceInfo.title); |
398 |
fakeRootLayer.setQueryable(false);
|
399 |
fakeRootLayer.setName(null);
|
400 |
} |
401 |
return fakeRootLayer;
|
402 |
} |
403 |
/* (non-Javadoc)
|
404 |
* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
|
405 |
*/
|
406 |
protected String parseException(byte[] data) { |
407 |
ArrayList errors = new ArrayList(); |
408 |
KXmlParser kxmlParser = new KXmlParser();
|
409 |
Reader reader = new InputStreamReader(new ByteArrayInputStream(data)); |
410 |
try
|
411 |
{ |
412 |
kxmlParser.setInput(reader); |
413 |
int tag;
|
414 |
|
415 |
boolean end = false; |
416 |
tag = kxmlParser.nextTag(); |
417 |
|
418 |
kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
|
419 |
|
420 |
while (!end)
|
421 |
{ |
422 |
switch(tag)
|
423 |
{ |
424 |
case KXmlParser.START_TAG:
|
425 |
if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
426 |
String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
427 |
errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
428 |
String errorMessage = kxmlParser.nextText();
|
429 |
errors.add(errorCode+errorMessage); |
430 |
} |
431 |
break;
|
432 |
case KXmlParser.END_TAG:
|
433 |
if (kxmlParser.getName().compareTo(ExceptionTags.EXCEPTION_ROOT) == 0) |
434 |
end = true;
|
435 |
break;
|
436 |
} |
437 |
if (!end)
|
438 |
{ |
439 |
tag = kxmlParser.nextTag(); |
440 |
} |
441 |
} |
442 |
} |
443 |
catch(XmlPullParserException parser_ex){
|
444 |
System.out.println(parser_ex.getMessage());
|
445 |
parser_ex.printStackTrace(); |
446 |
} |
447 |
catch (IOException ioe) { |
448 |
ioe.printStackTrace(); |
449 |
} |
450 |
String message = errors.size()>0? "" : null; |
451 |
for (int i = 0; i < errors.size(); i++) { |
452 |
message += (String) errors.get(i)+"\n"; |
453 |
} |
454 |
return message;
|
455 |
} |
456 |
|
457 |
} |