svn-gvsig-desktop / trunk / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_1_0 / WMSProtocolHandler1_1_0.java @ 14705
History | View | Annotate | Download (15 KB)
1 |
|
---|---|
2 |
package org.gvsig.remoteClient.wms.wms_1_1_0; |
3 |
|
4 |
import java.io.BufferedReader; |
5 |
import java.io.ByteArrayInputStream; |
6 |
import java.io.File; |
7 |
import java.io.FileInputStream; |
8 |
import java.io.FileNotFoundException; |
9 |
import java.io.FileReader; |
10 |
import java.io.IOException; |
11 |
import java.util.ArrayList; |
12 |
import java.util.TreeMap; |
13 |
import org.gvsig.remoteClient.utils.CapabilitiesTags; |
14 |
import org.gvsig.remoteClient.utils.EncodingXMLParser; |
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 1.1.0
|
22 |
* </p>
|
23 |
*/
|
24 |
public class WMSProtocolHandler1_1_0 extends org.gvsig.remoteClient.wms.WMSProtocolHandler |
25 |
{ |
26 |
private WMSLayer1_1_0 fakeRootLayer;
|
27 |
|
28 |
public WMSProtocolHandler1_1_0()
|
29 |
{ |
30 |
this.version = "1.1.0"; |
31 |
this.name = "WMS1.1.0"; |
32 |
this.serviceInfo = new ServiceInformation(); |
33 |
this.layers = new TreeMap(); |
34 |
} |
35 |
|
36 |
//------------------------------------------------------------------------------
|
37 |
// Parsing methods....
|
38 |
//------------------------------------------------------------------------------
|
39 |
/**
|
40 |
* <p>Parse the xml data retrieved from the WMS, it will parse the WMS Capabilities</p>
|
41 |
*
|
42 |
*/
|
43 |
public void parse(File f) |
44 |
{ |
45 |
rootLayer = null;
|
46 |
int tag;
|
47 |
EncodingXMLParser kxmlParser = null;
|
48 |
kxmlParser = new EncodingXMLParser();
|
49 |
try
|
50 |
{ |
51 |
kxmlParser.setInput(f); |
52 |
kxmlParser.nextTag(); |
53 |
if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
|
54 |
{ |
55 |
kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
|
56 |
tag = kxmlParser.nextTag(); |
57 |
while(tag != KXmlParser.END_DOCUMENT)
|
58 |
{ |
59 |
switch(tag)
|
60 |
{ |
61 |
|
62 |
case KXmlParser.START_TAG:
|
63 |
if (kxmlParser.getName().compareTo(CapabilitiesTags.SERVICE )==0) |
64 |
{ |
65 |
parseServiceTag(kxmlParser); |
66 |
} |
67 |
else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
68 |
{ |
69 |
parseCapabilityTag(kxmlParser); |
70 |
} |
71 |
break;
|
72 |
case KXmlParser.END_TAG:
|
73 |
break;
|
74 |
case KXmlParser.TEXT:
|
75 |
|
76 |
break;
|
77 |
} |
78 |
tag = kxmlParser.next(); |
79 |
} |
80 |
|
81 |
kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
82 |
} |
83 |
} |
84 |
catch(XmlPullParserException parser_ex){
|
85 |
parser_ex.printStackTrace(); |
86 |
} |
87 |
catch (IOException ioe) { |
88 |
ioe.printStackTrace(); |
89 |
} finally {
|
90 |
|
91 |
} |
92 |
} |
93 |
|
94 |
/**
|
95 |
* <p>Parses the Service Information </p>
|
96 |
*/
|
97 |
private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
98 |
{ |
99 |
int currentTag;
|
100 |
boolean end = false; |
101 |
|
102 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
|
103 |
currentTag = parser.next(); |
104 |
|
105 |
while (!end)
|
106 |
{ |
107 |
switch(currentTag)
|
108 |
{ |
109 |
case KXmlParser.START_TAG:
|
110 |
if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
111 |
{ |
112 |
serviceInfo.name = parser.nextText(); |
113 |
} |
114 |
else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
115 |
{ |
116 |
serviceInfo.title = parser.nextText(); |
117 |
} |
118 |
else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
119 |
{ |
120 |
serviceInfo.abstr = parser.nextText(); |
121 |
} |
122 |
else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
123 |
{ |
124 |
String value = null; |
125 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
126 |
if (value != null){ |
127 |
serviceInfo.online_resource = value; |
128 |
} |
129 |
} |
130 |
else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
131 |
(parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
|
132 |
{ |
133 |
parser.skipSubTree(); |
134 |
} |
135 |
break;
|
136 |
case KXmlParser.END_TAG:
|
137 |
if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
138 |
end = true;
|
139 |
break;
|
140 |
case KXmlParser.TEXT:
|
141 |
break;
|
142 |
} |
143 |
if (!end)
|
144 |
currentTag = parser.next(); |
145 |
} |
146 |
parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
|
147 |
} |
148 |
|
149 |
/**
|
150 |
* <p>Parses the Capability Tag </p>
|
151 |
*/
|
152 |
private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
153 |
{ |
154 |
int currentTag;
|
155 |
boolean end = false; |
156 |
|
157 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
|
158 |
currentTag = parser.next(); |
159 |
|
160 |
while (!end)
|
161 |
{ |
162 |
switch(currentTag)
|
163 |
{ |
164 |
case KXmlParser.START_TAG:
|
165 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
166 |
{ |
167 |
parseRequestTag(parser); |
168 |
} |
169 |
else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
170 |
{ |
171 |
// TODO:
|
172 |
// add the exception formats supported.
|
173 |
} |
174 |
else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
175 |
{ |
176 |
WMSLayer1_1_0 lyr = new WMSLayer1_1_0();
|
177 |
if (rootLayer == null) |
178 |
rootLayer = lyr; |
179 |
else {
|
180 |
// Handles when there is no general root layer, will use
|
181 |
// a fake non-queryable one.
|
182 |
if (!rootLayer.equals(getFakeRootLayer())){
|
183 |
WMSLayer1_1_0 aux = (WMSLayer1_1_0) rootLayer; |
184 |
rootLayer = getFakeRootLayer(); |
185 |
rootLayer.getChildren().add(aux); |
186 |
} |
187 |
rootLayer.getChildren().add(lyr); |
188 |
} |
189 |
lyr.parse(parser, layers); |
190 |
|
191 |
if (lyr.getName()!=null) |
192 |
layers.put(lyr.getName(), lyr); |
193 |
} |
194 |
else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
195 |
(parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
|
196 |
|
197 |
{ |
198 |
parser.skipSubTree(); |
199 |
} |
200 |
break;
|
201 |
case KXmlParser.END_TAG:
|
202 |
if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
203 |
end = true;
|
204 |
break;
|
205 |
case KXmlParser.TEXT:
|
206 |
break;
|
207 |
} |
208 |
if (!end)
|
209 |
currentTag = parser.next(); |
210 |
} |
211 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
|
212 |
} |
213 |
|
214 |
/**
|
215 |
* <p>Parses the Request tag </p>
|
216 |
*/
|
217 |
private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
218 |
{ |
219 |
int currentTag;
|
220 |
boolean end = false; |
221 |
|
222 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
|
223 |
currentTag = parser.next(); |
224 |
|
225 |
while (!end)
|
226 |
{ |
227 |
switch(currentTag)
|
228 |
{ |
229 |
case KXmlParser.START_TAG:
|
230 |
if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
231 |
{ |
232 |
serviceInfo.operations.put(CapabilitiesTags.GETCAPABILITIES , null);
|
233 |
} |
234 |
else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
235 |
{ |
236 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
|
237 |
parseGetMapTag(parser); |
238 |
} |
239 |
else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
240 |
{ |
241 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
|
242 |
parseGetFeatureInfoTag(parser); |
243 |
} |
244 |
else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
245 |
{ |
246 |
serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
|
247 |
} |
248 |
else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
249 |
{ |
250 |
serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, null);
|
251 |
parseGetLegendGraphicTag(parser); |
252 |
} |
253 |
break;
|
254 |
case KXmlParser.END_TAG:
|
255 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
256 |
end = true;
|
257 |
break;
|
258 |
case KXmlParser.TEXT:
|
259 |
break;
|
260 |
} |
261 |
if(!end)
|
262 |
currentTag = parser.next(); |
263 |
} |
264 |
// TODO: does not get such a tag when arrives here!!!!!!
|
265 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
|
266 |
} |
267 |
|
268 |
/**
|
269 |
* <p>Parses the GetMap tag </p>
|
270 |
*/
|
271 |
private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
272 |
{ |
273 |
int currentTag;
|
274 |
boolean end = false; |
275 |
|
276 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
|
277 |
currentTag = parser.next(); |
278 |
|
279 |
while (!end)
|
280 |
{ |
281 |
switch(currentTag)
|
282 |
{ |
283 |
case KXmlParser.START_TAG:
|
284 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
285 |
{ |
286 |
serviceInfo.formats.add(parser.nextText()); |
287 |
} |
288 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
289 |
{ |
290 |
currentTag = parser.nextTag(); |
291 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
292 |
{ |
293 |
currentTag = parser.nextTag(); |
294 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
295 |
{ |
296 |
currentTag = parser.nextTag(); |
297 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
298 |
{ |
299 |
String value = new String(); |
300 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
301 |
if (value != null){ |
302 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
303 |
} |
304 |
} |
305 |
} |
306 |
} |
307 |
} |
308 |
break;
|
309 |
case KXmlParser.END_TAG:
|
310 |
if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
311 |
end = true;
|
312 |
break;
|
313 |
case KXmlParser.TEXT:
|
314 |
break;
|
315 |
} |
316 |
if(!end)
|
317 |
currentTag = parser.next(); |
318 |
} |
319 |
} |
320 |
|
321 |
/**
|
322 |
* <p>Parses the GetFeatureInfo tag </p>
|
323 |
*/
|
324 |
private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
325 |
{ |
326 |
int currentTag;
|
327 |
boolean end = false; |
328 |
|
329 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
|
330 |
currentTag = parser.next(); |
331 |
|
332 |
while (!end)
|
333 |
{ |
334 |
switch(currentTag)
|
335 |
{ |
336 |
case KXmlParser.START_TAG:
|
337 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
338 |
{ |
339 |
//TODO:
|
340 |
// add the supported formats by the GetFeatureInfo request
|
341 |
//serviceInfo.formats.add(parser.nextText());
|
342 |
} |
343 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
344 |
{ |
345 |
currentTag = parser.nextTag(); |
346 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
347 |
{ |
348 |
currentTag = parser.nextTag(); |
349 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
350 |
{ |
351 |
currentTag = parser.nextTag(); |
352 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
353 |
{ |
354 |
String value = new String(); |
355 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
356 |
if (value != null){ |
357 |
//serviceInfo.online_resource = value;
|
358 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
359 |
} |
360 |
} |
361 |
} |
362 |
} |
363 |
} |
364 |
break;
|
365 |
case KXmlParser.END_TAG:
|
366 |
if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
367 |
end = true;
|
368 |
break;
|
369 |
case KXmlParser.TEXT:
|
370 |
break;
|
371 |
} |
372 |
if(!end)
|
373 |
currentTag = parser.next(); |
374 |
} |
375 |
} |
376 |
|
377 |
/**
|
378 |
* <p>Parses the GetLegendGraphic tag </p>
|
379 |
*/
|
380 |
private void parseGetLegendGraphicTag(KXmlParser parser) throws IOException, XmlPullParserException |
381 |
{ |
382 |
int currentTag;
|
383 |
boolean end = false; |
384 |
|
385 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETLEGENDGRAPHIC);
|
386 |
currentTag = parser.next(); |
387 |
|
388 |
while (!end)
|
389 |
{ |
390 |
switch(currentTag)
|
391 |
{ |
392 |
case KXmlParser.START_TAG:
|
393 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
394 |
{ |
395 |
//TODO:
|
396 |
// add the supported formats by the GetLegendGraphic request
|
397 |
//serviceInfo.formats.add(parser.nextText());
|
398 |
} |
399 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
400 |
{ |
401 |
currentTag = parser.nextTag(); |
402 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
403 |
{ |
404 |
currentTag = parser.nextTag(); |
405 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
406 |
{ |
407 |
currentTag = parser.nextTag(); |
408 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
409 |
{ |
410 |
String value = new String(); |
411 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
412 |
if (value != null){ |
413 |
serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, value); |
414 |
} |
415 |
} |
416 |
} |
417 |
} |
418 |
} |
419 |
break;
|
420 |
case KXmlParser.END_TAG:
|
421 |
if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC) == 0) |
422 |
end = true;
|
423 |
break;
|
424 |
case KXmlParser.TEXT:
|
425 |
break;
|
426 |
} |
427 |
if(!end)
|
428 |
currentTag = parser.next(); |
429 |
} |
430 |
} |
431 |
|
432 |
private WMSLayer1_1_0 getFakeRootLayer(){
|
433 |
if (fakeRootLayer == null){ |
434 |
fakeRootLayer = new WMSLayer1_1_0();
|
435 |
fakeRootLayer.setTitle(serviceInfo.title); |
436 |
fakeRootLayer.setQueryable(false);
|
437 |
fakeRootLayer.setName(null);
|
438 |
} |
439 |
return fakeRootLayer;
|
440 |
} |
441 |
|
442 |
/* (non-Javadoc)
|
443 |
* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
|
444 |
*/
|
445 |
protected String parseException(byte[] data) { |
446 |
ArrayList errors = new ArrayList(); |
447 |
KXmlParser kxmlParser = new KXmlParser();
|
448 |
|
449 |
try
|
450 |
{ |
451 |
kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
452 |
kxmlParser.nextTag(); |
453 |
int tag;
|
454 |
if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
|
455 |
{ |
456 |
kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
|
457 |
tag = kxmlParser.nextTag(); |
458 |
while(tag != KXmlParser.END_DOCUMENT)
|
459 |
{ |
460 |
switch(tag)
|
461 |
{ |
462 |
case KXmlParser.START_TAG:
|
463 |
if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
464 |
String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
465 |
errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
466 |
String errorMessage = kxmlParser.nextText();
|
467 |
errors.add(errorCode+errorMessage); |
468 |
} |
469 |
break;
|
470 |
case KXmlParser.END_TAG:
|
471 |
break;
|
472 |
|
473 |
} |
474 |
tag = kxmlParser.nextTag(); |
475 |
} |
476 |
//kxmlParser.require(KXmlParser.END_DOCUMENT, null, null);
|
477 |
} |
478 |
} |
479 |
catch(XmlPullParserException parser_ex){
|
480 |
System.out.println(parser_ex.getMessage());
|
481 |
parser_ex.printStackTrace(); |
482 |
} |
483 |
catch (IOException ioe) { |
484 |
ioe.printStackTrace(); |
485 |
} |
486 |
String message = errors.size()>0? "" : null; |
487 |
for (int i = 0; i < errors.size(); i++) { |
488 |
message += (String) errors.get(i)+"\n"; |
489 |
} |
490 |
return message;
|
491 |
} |
492 |
|
493 |
} |