svn-gvsig-desktop / tags / v1_0_2_Build_912 / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_3_0 / WMSProtocolHandler1_3_0.java @ 11422
History | View | Annotate | Download (15.7 KB)
1 |
|
---|---|
2 |
package org.gvsig.remoteClient.wms.wms_1_3_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 |
|
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 1.3.0
|
22 |
* </p>
|
23 |
*/
|
24 |
public class WMSProtocolHandler1_3_0 extends org.gvsig.remoteClient.wms.WMSProtocolHandler { |
25 |
private WMSLayer1_3_0 fakeRootLayer;
|
26 |
|
27 |
public WMSProtocolHandler1_3_0()
|
28 |
{ |
29 |
this.version = "1.3.0"; |
30 |
this.name = "WMS1.3.0"; |
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 |
rootLayer = null;
|
45 |
FileReader reader = null; |
46 |
try
|
47 |
{ |
48 |
reader = new FileReader(f); |
49 |
BufferedReader br = new BufferedReader(reader); |
50 |
char[] buffer = new char[100]; |
51 |
br.read(buffer); |
52 |
StringBuffer st = new StringBuffer(new String(buffer)); |
53 |
String searchText = "encoding=\""; |
54 |
int index = st.indexOf(searchText);
|
55 |
if (index>-1) { |
56 |
st.delete(0, index+searchText.length());
|
57 |
encoding = st.substring(0, st.indexOf("\"")); |
58 |
} |
59 |
} |
60 |
catch(FileNotFoundException ex) { |
61 |
ex.printStackTrace(); |
62 |
} catch (IOException e) { |
63 |
e.printStackTrace(); |
64 |
} |
65 |
|
66 |
int tag;
|
67 |
KXmlParser kxmlParser = null;
|
68 |
kxmlParser = new KXmlParser();
|
69 |
try
|
70 |
{ |
71 |
kxmlParser.setInput(new FileInputStream(f), encoding); |
72 |
kxmlParser.nextTag(); |
73 |
if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
|
74 |
{ |
75 |
kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_3_0);
|
76 |
tag = kxmlParser.nextTag(); |
77 |
while(tag != KXmlParser.END_DOCUMENT)
|
78 |
{ |
79 |
switch(tag)
|
80 |
{ |
81 |
case KXmlParser.START_TAG:
|
82 |
if (kxmlParser.getName().compareTo(CapabilitiesTags.SERVICE )==0) |
83 |
{ |
84 |
parseServiceTag(kxmlParser); |
85 |
} |
86 |
else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
87 |
{ |
88 |
parseCapabilityTag(kxmlParser); |
89 |
} |
90 |
break;
|
91 |
case KXmlParser.END_TAG:
|
92 |
break;
|
93 |
case KXmlParser.TEXT:
|
94 |
//System.out.println("[TEXT]["+kxmlParser.getText()+"]");
|
95 |
break;
|
96 |
} |
97 |
tag = kxmlParser.next(); |
98 |
}//while !END_DOCUMENT
|
99 |
} |
100 |
} |
101 |
catch(XmlPullParserException parser_ex){
|
102 |
parser_ex.printStackTrace(); |
103 |
} |
104 |
catch (IOException ioe) { |
105 |
ioe.printStackTrace(); |
106 |
} finally {
|
107 |
|
108 |
} |
109 |
// In the parsing process the layer has been filled
|
110 |
} |
111 |
|
112 |
/**
|
113 |
* <p>Parses the Service Information </p>
|
114 |
*/
|
115 |
private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
116 |
{ |
117 |
int currentTag;
|
118 |
boolean end = false; |
119 |
|
120 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
|
121 |
currentTag = parser.next(); |
122 |
|
123 |
while (!end)
|
124 |
{ |
125 |
switch(currentTag)
|
126 |
{ |
127 |
case KXmlParser.START_TAG:
|
128 |
if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
129 |
{ |
130 |
serviceInfo.name = parser.nextText(); |
131 |
} |
132 |
else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
133 |
{ |
134 |
serviceInfo.title = parser.nextText(); |
135 |
} |
136 |
else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
137 |
{ |
138 |
serviceInfo.abstr = parser.nextText(); |
139 |
} |
140 |
else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
141 |
{ |
142 |
String value = new String(); |
143 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
144 |
if (value != null){ |
145 |
serviceInfo.online_resource = value; |
146 |
} |
147 |
} |
148 |
else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
149 |
(parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
|
150 |
{ |
151 |
parser.skipSubTree(); |
152 |
} |
153 |
break;
|
154 |
case KXmlParser.END_TAG:
|
155 |
if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
156 |
end = true;
|
157 |
break;
|
158 |
case KXmlParser.TEXT:
|
159 |
break;
|
160 |
} |
161 |
if (!end)
|
162 |
currentTag = parser.next(); |
163 |
} |
164 |
parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
|
165 |
} |
166 |
|
167 |
/**
|
168 |
* <p>Parses the Capability Tag </p>
|
169 |
*/
|
170 |
private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
171 |
{ |
172 |
int currentTag;
|
173 |
boolean end = false; |
174 |
|
175 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
|
176 |
currentTag = parser.next(); |
177 |
|
178 |
while (!end)
|
179 |
{ |
180 |
switch(currentTag)
|
181 |
{ |
182 |
case KXmlParser.START_TAG:
|
183 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
184 |
{ |
185 |
parseRequestTag(parser); |
186 |
} |
187 |
else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
188 |
{ |
189 |
//TODO:
|
190 |
//Add to serviceInformation the supported exception formats.
|
191 |
} |
192 |
else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
193 |
{ |
194 |
WMSLayer1_3_0 lyr = new WMSLayer1_3_0();
|
195 |
if (rootLayer == null) |
196 |
rootLayer = lyr; |
197 |
else {
|
198 |
// Handles when there is no general root layer, will use
|
199 |
// a fake non-queryable one.
|
200 |
if (!rootLayer.equals(getFakeRootLayer())){
|
201 |
WMSLayer1_3_0 aux = (WMSLayer1_3_0) rootLayer; |
202 |
rootLayer = getFakeRootLayer(); |
203 |
rootLayer.getChildren().add(aux); |
204 |
} |
205 |
rootLayer.getChildren().add(lyr); |
206 |
} |
207 |
lyr.parse(parser, layers); |
208 |
|
209 |
if (lyr.getName()!=null) |
210 |
layers.put(lyr.getName(), lyr); |
211 |
} |
212 |
else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
213 |
(parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
|
214 |
{ |
215 |
parser.skipSubTree(); |
216 |
} |
217 |
break;
|
218 |
case KXmlParser.END_TAG:
|
219 |
if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
220 |
end = true;
|
221 |
break;
|
222 |
case KXmlParser.TEXT:
|
223 |
break;
|
224 |
} |
225 |
if (!end)
|
226 |
currentTag = parser.next(); |
227 |
} |
228 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
|
229 |
} |
230 |
|
231 |
/**
|
232 |
* <p>Parses the Request tag </p>
|
233 |
*/
|
234 |
private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
235 |
{ |
236 |
int currentTag;
|
237 |
boolean end = false; |
238 |
|
239 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
|
240 |
currentTag = parser.next(); |
241 |
|
242 |
while (!end)
|
243 |
{ |
244 |
switch(currentTag)
|
245 |
{ |
246 |
case KXmlParser.START_TAG:
|
247 |
if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
248 |
{ |
249 |
//we could parse here the info of Capabilities request, but we actually never use it.
|
250 |
} |
251 |
else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
252 |
{ |
253 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
|
254 |
parseGetMapTag(parser); |
255 |
} |
256 |
else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
257 |
{ |
258 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
|
259 |
parseGetFeatureInfoTag(parser); |
260 |
} |
261 |
else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
262 |
{ |
263 |
serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
|
264 |
} |
265 |
else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
266 |
{ |
267 |
serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, null);
|
268 |
parseGetLegendGraphicTag(parser); |
269 |
} |
270 |
break;
|
271 |
case KXmlParser.END_TAG:
|
272 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
273 |
end = true;
|
274 |
break;
|
275 |
case KXmlParser.TEXT:
|
276 |
break;
|
277 |
} |
278 |
if (!end)
|
279 |
currentTag = parser.next(); |
280 |
} |
281 |
// TODO: does not get such a tag when arrives here!!!!!!
|
282 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
|
283 |
} |
284 |
|
285 |
/**
|
286 |
* <p>Parses the GetMap tag </p>
|
287 |
*/
|
288 |
private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
289 |
{ |
290 |
int currentTag;
|
291 |
boolean end = false; |
292 |
|
293 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
|
294 |
currentTag = parser.next(); |
295 |
|
296 |
while (!end)
|
297 |
{ |
298 |
switch(currentTag)
|
299 |
{ |
300 |
case KXmlParser.START_TAG:
|
301 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
302 |
{ |
303 |
serviceInfo.formats.add(parser.nextText()); |
304 |
} |
305 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
306 |
{ |
307 |
currentTag = parser.nextTag(); |
308 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
309 |
{ |
310 |
currentTag = parser.nextTag(); |
311 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
312 |
{ |
313 |
currentTag = parser.nextTag(); |
314 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
315 |
{ |
316 |
String value = new String(); |
317 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
318 |
if (value != null){ |
319 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
320 |
} |
321 |
} |
322 |
} |
323 |
} |
324 |
} |
325 |
break;
|
326 |
case KXmlParser.END_TAG:
|
327 |
if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
328 |
end = true;
|
329 |
break;
|
330 |
case KXmlParser.TEXT:
|
331 |
break;
|
332 |
} |
333 |
if(!end)
|
334 |
currentTag = parser.next(); |
335 |
} |
336 |
} |
337 |
|
338 |
/**
|
339 |
* <p>Parses the GetFeatureInfo tag </p>
|
340 |
*/
|
341 |
private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
342 |
{ |
343 |
int currentTag;
|
344 |
boolean end = false; |
345 |
|
346 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
|
347 |
currentTag = parser.next(); |
348 |
|
349 |
while (!end)
|
350 |
{ |
351 |
switch(currentTag)
|
352 |
{ |
353 |
case KXmlParser.START_TAG:
|
354 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
355 |
{ |
356 |
//TODO:
|
357 |
// add the supported formats by the GetFeatureInfo request
|
358 |
//serviceInfo.formats.add(parser.nextText());
|
359 |
} |
360 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
361 |
{ |
362 |
currentTag = parser.nextTag(); |
363 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
364 |
{ |
365 |
currentTag = parser.nextTag(); |
366 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
367 |
{ |
368 |
currentTag = parser.nextTag(); |
369 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
370 |
{ |
371 |
String value = new String(); |
372 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
373 |
if (value != null){ |
374 |
//serviceInfo.online_resource = value;
|
375 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
376 |
} |
377 |
} |
378 |
} |
379 |
} |
380 |
} |
381 |
break;
|
382 |
case KXmlParser.END_TAG:
|
383 |
if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
384 |
end = true;
|
385 |
break;
|
386 |
case KXmlParser.TEXT:
|
387 |
break;
|
388 |
} |
389 |
if(!end)
|
390 |
currentTag = parser.next(); |
391 |
} |
392 |
} |
393 |
|
394 |
/**
|
395 |
* <p>Parses the GetLegendGraphic tag </p>
|
396 |
*/
|
397 |
private void parseGetLegendGraphicTag(KXmlParser parser) throws IOException, XmlPullParserException |
398 |
{ |
399 |
int currentTag;
|
400 |
boolean end = false; |
401 |
|
402 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETLEGENDGRAPHIC);
|
403 |
currentTag = parser.next(); |
404 |
|
405 |
while (!end)
|
406 |
{ |
407 |
switch(currentTag)
|
408 |
{ |
409 |
case KXmlParser.START_TAG:
|
410 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
411 |
{ |
412 |
//TODO:
|
413 |
// add the supported formats by the GetLegendGraphic request
|
414 |
//serviceInfo.formats.add(parser.nextText());
|
415 |
} |
416 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
417 |
{ |
418 |
currentTag = parser.nextTag(); |
419 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
420 |
{ |
421 |
currentTag = parser.nextTag(); |
422 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
423 |
{ |
424 |
currentTag = parser.nextTag(); |
425 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
426 |
{ |
427 |
String value = new String(); |
428 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
429 |
if (value != null){ |
430 |
serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, value); |
431 |
} |
432 |
} |
433 |
} |
434 |
} |
435 |
} |
436 |
break;
|
437 |
case KXmlParser.END_TAG:
|
438 |
if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC) == 0) |
439 |
end = true;
|
440 |
break;
|
441 |
case KXmlParser.TEXT:
|
442 |
break;
|
443 |
} |
444 |
if(!end)
|
445 |
currentTag = parser.next(); |
446 |
} |
447 |
} |
448 |
|
449 |
private WMSLayer1_3_0 getFakeRootLayer(){
|
450 |
if (fakeRootLayer == null){ |
451 |
fakeRootLayer = new WMSLayer1_3_0();
|
452 |
fakeRootLayer.setTitle(serviceInfo.title); |
453 |
fakeRootLayer.setQueryable(false);
|
454 |
fakeRootLayer.setName(null);
|
455 |
} |
456 |
return fakeRootLayer;
|
457 |
} |
458 |
/* (non-Javadoc)
|
459 |
* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
|
460 |
*/
|
461 |
protected String parseException(byte[] data) { |
462 |
ArrayList errors = new ArrayList(); |
463 |
KXmlParser kxmlParser = new KXmlParser();
|
464 |
try
|
465 |
{ |
466 |
kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
467 |
kxmlParser.nextTag(); |
468 |
int tag;
|
469 |
if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
|
470 |
{ |
471 |
kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
|
472 |
tag = kxmlParser.nextTag(); |
473 |
while(tag != KXmlParser.END_DOCUMENT)
|
474 |
{ |
475 |
switch(tag)
|
476 |
{ |
477 |
case KXmlParser.START_TAG:
|
478 |
if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
479 |
String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
480 |
errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
481 |
String errorMessage = kxmlParser.nextText();
|
482 |
errors.add(errorCode+errorMessage); |
483 |
} |
484 |
break;
|
485 |
case KXmlParser.END_TAG:
|
486 |
break;
|
487 |
|
488 |
} |
489 |
tag = kxmlParser.nextTag(); |
490 |
} |
491 |
//kxmlParser.require(KXmlParser.END_DOCUMENT, null, null);
|
492 |
} |
493 |
} |
494 |
catch(XmlPullParserException parser_ex){
|
495 |
System.out.println(parser_ex.getMessage());
|
496 |
parser_ex.printStackTrace(); |
497 |
} |
498 |
catch (IOException ioe) { |
499 |
ioe.printStackTrace(); |
500 |
} |
501 |
String message = errors.size()>0? "" : null; |
502 |
for (int i = 0; i < errors.size(); i++) { |
503 |
message += (String) errors.get(i)+"\n"; |
504 |
} |
505 |
return message;
|
506 |
} |
507 |
|
508 |
} |