svn-gvsig-desktop / tags / v1_0_2_Build_916 / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_1_1 / WMSProtocolHandler1_1_1.java @ 12327
History | View | Annotate | Download (17 KB)
1 |
|
---|---|
2 |
package org.gvsig.remoteClient.wms.wms_1_1_1; |
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.io.StringReader; |
12 |
import java.util.ArrayList; |
13 |
import java.util.TreeMap; |
14 |
|
15 |
import org.gvsig.remoteClient.utils.CapabilitiesTags; |
16 |
import org.gvsig.remoteClient.utils.ExceptionTags; |
17 |
import org.kxml2.io.KXmlParser; |
18 |
import org.xmlpull.v1.XmlPullParserException; |
19 |
|
20 |
/**
|
21 |
* <p>
|
22 |
* Describes the handler to comunicate to a WMS 1.1.1
|
23 |
* </p>
|
24 |
*/
|
25 |
public class WMSProtocolHandler1_1_1 extends org.gvsig.remoteClient.wms.WMSProtocolHandler { |
26 |
private WMSLayer1_1_1 fakeRootLayer;
|
27 |
|
28 |
public WMSProtocolHandler1_1_1()
|
29 |
{ |
30 |
this.version = "1.1.1"; |
31 |
this.name = "WMS1.1.1"; |
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 |
FileReader reader = null; |
47 |
try
|
48 |
{ |
49 |
reader = new FileReader(f); |
50 |
BufferedReader br = new BufferedReader(reader); |
51 |
char[] buffer = new char[100]; |
52 |
br.read(buffer); |
53 |
String string = new String(buffer); |
54 |
|
55 |
// patch for ArcIMS + WMS connector > 9.0 bug
|
56 |
int a = string.toLowerCase().indexOf("<?xml"); |
57 |
if (a !=-1) |
58 |
string = string.substring(a, string.length()); |
59 |
// end patch
|
60 |
|
61 |
StringBuffer st = new StringBuffer(string); |
62 |
String searchText = "encoding=\""; |
63 |
int index = st.indexOf(searchText);
|
64 |
if (index>-1) { |
65 |
st.delete(0, index+searchText.length());
|
66 |
encoding = st.substring(0, st.indexOf("\"")); |
67 |
} |
68 |
} catch(FileNotFoundException ex) { |
69 |
ex.printStackTrace(); |
70 |
} catch (IOException e) { |
71 |
e.printStackTrace(); |
72 |
} |
73 |
|
74 |
int tag;
|
75 |
KXmlParser kxmlParser = null;
|
76 |
kxmlParser = new KXmlParser();
|
77 |
try
|
78 |
{ |
79 |
reader = new FileReader(f); |
80 |
BufferedReader br = new BufferedReader(reader); |
81 |
|
82 |
// patch for ArcIMS + WMS connector > 9.0 bug
|
83 |
char[] buffer = new char[(int) f.length()]; |
84 |
br.read(buffer); |
85 |
String string = new String(buffer); |
86 |
int a = string.toLowerCase().indexOf("<?xml"); |
87 |
if (a !=-1) { |
88 |
string = string.substring(a, string.length()); |
89 |
kxmlParser.setInput(new StringReader(string)); |
90 |
} else
|
91 |
// end patch
|
92 |
kxmlParser.setInput(new FileInputStream(f), encoding); |
93 |
|
94 |
kxmlParser.nextTag(); |
95 |
if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
|
96 |
{ |
97 |
kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
|
98 |
tag = kxmlParser.nextTag(); |
99 |
while(tag != KXmlParser.END_DOCUMENT)
|
100 |
{ |
101 |
switch(tag)
|
102 |
{ |
103 |
|
104 |
case KXmlParser.START_TAG:
|
105 |
if (kxmlParser.getName().compareTo(CapabilitiesTags.SERVICE )==0) |
106 |
{ |
107 |
parseServiceTag(kxmlParser); |
108 |
} |
109 |
else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
110 |
{ |
111 |
parseCapabilityTag(kxmlParser); |
112 |
} |
113 |
break;
|
114 |
case KXmlParser.END_TAG:
|
115 |
break;
|
116 |
case KXmlParser.TEXT:
|
117 |
//System.out.println("[TEXT]["+kxmlParser.getText()+"]");
|
118 |
break;
|
119 |
} |
120 |
tag = kxmlParser.next(); |
121 |
} |
122 |
kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
123 |
} |
124 |
} |
125 |
catch(XmlPullParserException parser_ex){
|
126 |
parser_ex.printStackTrace(); |
127 |
} |
128 |
catch (IOException ioe) { |
129 |
ioe.printStackTrace(); |
130 |
} finally {
|
131 |
|
132 |
} |
133 |
// In the parsing process the layer has been filled
|
134 |
} |
135 |
|
136 |
/**
|
137 |
* <p>Parses the Service Information </p>
|
138 |
*/
|
139 |
private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
140 |
{ |
141 |
int currentTag;
|
142 |
boolean end = false; |
143 |
|
144 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
|
145 |
currentTag = parser.next(); |
146 |
|
147 |
while (!end)
|
148 |
{ |
149 |
switch(currentTag)
|
150 |
{ |
151 |
case KXmlParser.START_TAG:
|
152 |
if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
153 |
{ |
154 |
serviceInfo.name = parser.nextText(); |
155 |
} |
156 |
else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
157 |
{ |
158 |
serviceInfo.title = parser.nextText(); |
159 |
} |
160 |
else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
161 |
{ |
162 |
serviceInfo.abstr = parser.nextText(); |
163 |
} |
164 |
else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
165 |
{ |
166 |
String value = new String(); |
167 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
168 |
if (value != null){ |
169 |
serviceInfo.online_resource = value; |
170 |
} |
171 |
} |
172 |
else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
173 |
(parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
|
174 |
{ |
175 |
parser.skipSubTree(); |
176 |
} |
177 |
break;
|
178 |
case KXmlParser.END_TAG:
|
179 |
if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
180 |
end = true;
|
181 |
break;
|
182 |
case KXmlParser.TEXT:
|
183 |
break;
|
184 |
} |
185 |
if (!end)
|
186 |
currentTag = parser.next(); |
187 |
} |
188 |
parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
|
189 |
} |
190 |
/**
|
191 |
* <p>Parses the Capability Tag </p>
|
192 |
*/
|
193 |
private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
194 |
{ |
195 |
int currentTag;
|
196 |
boolean end = false; |
197 |
|
198 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
|
199 |
currentTag = parser.next(); |
200 |
|
201 |
while (!end)
|
202 |
{ |
203 |
switch(currentTag)
|
204 |
{ |
205 |
case KXmlParser.START_TAG:
|
206 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
207 |
{ |
208 |
parseRequestTag(parser); |
209 |
} |
210 |
else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
211 |
{ |
212 |
//TODO:
|
213 |
//Add to serviceInfo the supported formats for the exceptions????
|
214 |
} |
215 |
else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
216 |
{ |
217 |
WMSLayer1_1_1 lyr = new WMSLayer1_1_1();
|
218 |
lyr.parse(parser, layers); |
219 |
|
220 |
if (rootLayer == null) |
221 |
rootLayer = lyr; |
222 |
else {
|
223 |
// Handles when there is no general root layer, will use
|
224 |
// a fake non-queryable one.
|
225 |
if (!rootLayer.equals(getFakeRootLayer())){
|
226 |
WMSLayer1_1_1 aux = (WMSLayer1_1_1) rootLayer; |
227 |
rootLayer = getFakeRootLayer(); |
228 |
rootLayer.getChildren().add(aux); |
229 |
} |
230 |
rootLayer.getChildren().add(lyr); |
231 |
} |
232 |
|
233 |
if (lyr.getName()!=null) |
234 |
layers.put(lyr.getName(), lyr); |
235 |
|
236 |
// Collection layerCollection = layers.values();
|
237 |
// Iterator iter = layerCollection.iterator();
|
238 |
// while (iter.hasNext())
|
239 |
// {
|
240 |
// WMSLayer1_1_1 layer = (WMSLayer1_1_1)iter.next();
|
241 |
// //Add all the SRS that the layer supports to the WMSProtocolHandler if they dont exist already
|
242 |
// for (i=0;i<layer.getAllSrs().size();i++)
|
243 |
// {
|
244 |
//// if (!layer.srs.contains(layer.getAllSrs().elementAt(i)))
|
245 |
//// {
|
246 |
//// this.srs.add(layer.getAllSrs().elementAt(i));
|
247 |
//// }
|
248 |
// }
|
249 |
// }
|
250 |
} |
251 |
else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
252 |
(parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
|
253 |
|
254 |
{ |
255 |
parser.skipSubTree(); |
256 |
} |
257 |
break;
|
258 |
case KXmlParser.END_TAG:
|
259 |
if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
260 |
end = true;
|
261 |
break;
|
262 |
case KXmlParser.TEXT:
|
263 |
break;
|
264 |
} |
265 |
if (!end)
|
266 |
currentTag = parser.next(); |
267 |
} |
268 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
|
269 |
} |
270 |
|
271 |
/**
|
272 |
* <p>Parses the Request tag </p>
|
273 |
*/
|
274 |
private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
275 |
{ |
276 |
int currentTag;
|
277 |
boolean end = false; |
278 |
|
279 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
|
280 |
currentTag = parser.next(); |
281 |
|
282 |
while (!end)
|
283 |
{ |
284 |
switch(currentTag)
|
285 |
{ |
286 |
case KXmlParser.START_TAG:
|
287 |
if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
288 |
{ |
289 |
serviceInfo.operations.put(CapabilitiesTags.GETCAPABILITIES, null);
|
290 |
} |
291 |
else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
292 |
{ |
293 |
// put a null to this key?
|
294 |
// or leave it like it was with a CODE in a vector specifying this operation.
|
295 |
// WMSProtocolHandler.GETMAP_OPERATION
|
296 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
|
297 |
parseGetMapTag(parser); |
298 |
} |
299 |
else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
300 |
{ |
301 |
//serviceInfo.operations.put(WMSProtocolHandler.GETFEATUREINFO_OPERATION)
|
302 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
|
303 |
parseGetFeatureInfoTag(parser); |
304 |
} |
305 |
else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
306 |
{ |
307 |
//serviceInfo.operations.put(WMSProtocolHandler.DESCRIBELAYER_OPERATION)
|
308 |
serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
|
309 |
} |
310 |
else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
311 |
{ |
312 |
serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, null);
|
313 |
parseGetLegendGraphicTag(parser); |
314 |
} |
315 |
break;
|
316 |
case KXmlParser.END_TAG:
|
317 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
318 |
end = true;
|
319 |
break;
|
320 |
case KXmlParser.TEXT:
|
321 |
break;
|
322 |
} |
323 |
if(!end)
|
324 |
currentTag = parser.next(); |
325 |
} |
326 |
// TODO: does not get such a tag when arrives here!!!!!!
|
327 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
|
328 |
} |
329 |
|
330 |
/**
|
331 |
* <p>Parses the GetMap tag </p>
|
332 |
*/
|
333 |
private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
334 |
{ |
335 |
int currentTag;
|
336 |
boolean end = false; |
337 |
|
338 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
|
339 |
currentTag = parser.next(); |
340 |
|
341 |
while (!end)
|
342 |
{ |
343 |
switch(currentTag)
|
344 |
{ |
345 |
case KXmlParser.START_TAG:
|
346 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
347 |
{ |
348 |
serviceInfo.formats.add(parser.nextText()); |
349 |
} |
350 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
351 |
{ |
352 |
currentTag = parser.nextTag(); |
353 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
354 |
{ |
355 |
currentTag = parser.nextTag(); |
356 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
357 |
{ |
358 |
currentTag = parser.nextTag(); |
359 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
360 |
{ |
361 |
String value = new String(); |
362 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
363 |
if (value != null){ |
364 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
365 |
} |
366 |
} |
367 |
} |
368 |
} |
369 |
} |
370 |
break;
|
371 |
case KXmlParser.END_TAG:
|
372 |
if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
373 |
end = true;
|
374 |
break;
|
375 |
case KXmlParser.TEXT:
|
376 |
break;
|
377 |
} |
378 |
if(!end)
|
379 |
currentTag = parser.next(); |
380 |
} |
381 |
} |
382 |
|
383 |
/**
|
384 |
* <p>Parses the GetFeatureInfoTag tag </p>
|
385 |
*/
|
386 |
private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
387 |
{ |
388 |
int currentTag;
|
389 |
boolean end = false; |
390 |
|
391 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
|
392 |
currentTag = parser.next(); |
393 |
|
394 |
while (!end)
|
395 |
{ |
396 |
switch(currentTag)
|
397 |
{ |
398 |
case KXmlParser.START_TAG:
|
399 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
400 |
{ |
401 |
//TODO:
|
402 |
// add the supported formats by the GetFeatureInfo request
|
403 |
//serviceInfo.formats.add(parser.nextText());
|
404 |
} |
405 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
406 |
{ |
407 |
currentTag = parser.nextTag(); |
408 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
409 |
{ |
410 |
currentTag = parser.nextTag(); |
411 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
412 |
{ |
413 |
currentTag = parser.nextTag(); |
414 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
415 |
{ |
416 |
String value = new String(); |
417 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
418 |
if (value != null){ |
419 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
420 |
} |
421 |
} |
422 |
} |
423 |
} |
424 |
} |
425 |
break;
|
426 |
case KXmlParser.END_TAG:
|
427 |
if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
428 |
end = true;
|
429 |
break;
|
430 |
case KXmlParser.TEXT:
|
431 |
break;
|
432 |
} |
433 |
if(!end)
|
434 |
currentTag = parser.next(); |
435 |
} |
436 |
} |
437 |
|
438 |
/**
|
439 |
* <p>Parses the GetFeatureInfoTag tag </p>
|
440 |
*/
|
441 |
private void parseGetLegendGraphicTag(KXmlParser parser) throws IOException, XmlPullParserException |
442 |
{ |
443 |
int currentTag;
|
444 |
boolean end = false; |
445 |
|
446 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETLEGENDGRAPHIC);
|
447 |
currentTag = parser.next(); |
448 |
|
449 |
while (!end)
|
450 |
{ |
451 |
switch(currentTag)
|
452 |
{ |
453 |
case KXmlParser.START_TAG:
|
454 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
455 |
{ |
456 |
//TODO:
|
457 |
// add the supported formats by the GetLegendGraphic request
|
458 |
//serviceInfo.formats.add(parser.nextText());
|
459 |
} |
460 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
461 |
{ |
462 |
currentTag = parser.nextTag(); |
463 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
464 |
{ |
465 |
currentTag = parser.nextTag(); |
466 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
467 |
{ |
468 |
currentTag = parser.nextTag(); |
469 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
470 |
{ |
471 |
String value = new String(); |
472 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
473 |
if (value != null){ |
474 |
serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, value); |
475 |
} |
476 |
} |
477 |
} |
478 |
} |
479 |
} |
480 |
break;
|
481 |
case KXmlParser.END_TAG:
|
482 |
if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC) == 0) |
483 |
end = true;
|
484 |
break;
|
485 |
case KXmlParser.TEXT:
|
486 |
break;
|
487 |
} |
488 |
if(!end)
|
489 |
currentTag = parser.next(); |
490 |
} |
491 |
} |
492 |
|
493 |
|
494 |
private WMSLayer1_1_1 getFakeRootLayer(){
|
495 |
if (fakeRootLayer == null){ |
496 |
fakeRootLayer = new WMSLayer1_1_1();
|
497 |
fakeRootLayer.setTitle(serviceInfo.title); |
498 |
fakeRootLayer.setQueryable(false);
|
499 |
fakeRootLayer.setName(null);
|
500 |
} |
501 |
return fakeRootLayer;
|
502 |
} |
503 |
/* (non-Javadoc)
|
504 |
* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
|
505 |
*/
|
506 |
protected String parseException(byte[] data) { |
507 |
ArrayList errors = new ArrayList(); |
508 |
KXmlParser kxmlParser = new KXmlParser();
|
509 |
try
|
510 |
{ |
511 |
kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
512 |
int tag;
|
513 |
|
514 |
boolean end = false; |
515 |
tag = kxmlParser.nextTag(); |
516 |
|
517 |
//Comentar temporalmente para subsanar el hecho de que SimonCit me devuelve las capabilities en un GetLegendGraphic!!!
|
518 |
kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
|
519 |
|
520 |
while (!end)
|
521 |
{ |
522 |
switch(tag)
|
523 |
{ |
524 |
case KXmlParser.START_TAG:
|
525 |
if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
526 |
String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
527 |
errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
528 |
String errorMessage = kxmlParser.nextText();
|
529 |
errors.add(errorCode+errorMessage); |
530 |
} |
531 |
break;
|
532 |
case KXmlParser.END_TAG:
|
533 |
if (kxmlParser.getName().compareTo(ExceptionTags.EXCEPTION_ROOT) == 0) |
534 |
end = true;
|
535 |
break;
|
536 |
} |
537 |
if (!end)
|
538 |
{ |
539 |
tag = kxmlParser.nextTag(); |
540 |
} |
541 |
} |
542 |
} |
543 |
catch(XmlPullParserException parser_ex){
|
544 |
System.out.println(parser_ex.getMessage());
|
545 |
parser_ex.printStackTrace(); |
546 |
} |
547 |
catch (IOException ioe) { |
548 |
ioe.printStackTrace(); |
549 |
} |
550 |
String message = errors.size()>0? "" : null; |
551 |
for (int i = 0; i < errors.size(); i++) { |
552 |
message += (String) errors.get(i)+"\n"; |
553 |
} |
554 |
return message;
|
555 |
} |
556 |
|
557 |
} |