root / trunk / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_1_1 / WMSProtocolHandler1_1_1.java @ 7835
History | View | Annotate | Download (15 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.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 |
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 |
} catch(FileNotFoundException ex) { |
60 |
ex.printStackTrace(); |
61 |
} catch (IOException e) { |
62 |
e.printStackTrace(); |
63 |
} |
64 |
|
65 |
int tag;
|
66 |
KXmlParser kxmlParser = null;
|
67 |
kxmlParser = new KXmlParser();
|
68 |
try
|
69 |
{ |
70 |
kxmlParser.setInput(new FileInputStream(f), encoding); |
71 |
kxmlParser.nextTag(); |
72 |
if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
|
73 |
{ |
74 |
kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
|
75 |
tag = kxmlParser.nextTag(); |
76 |
while(tag != KXmlParser.END_DOCUMENT)
|
77 |
{ |
78 |
switch(tag)
|
79 |
{ |
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 |
} |
99 |
kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
100 |
} |
101 |
} |
102 |
catch(XmlPullParserException parser_ex){
|
103 |
parser_ex.printStackTrace(); |
104 |
} |
105 |
catch (IOException ioe) { |
106 |
ioe.printStackTrace(); |
107 |
} finally {
|
108 |
|
109 |
} |
110 |
// In the parsing process the layer has been filled
|
111 |
} |
112 |
|
113 |
/**
|
114 |
* <p>Parses the Service Information </p>
|
115 |
*/
|
116 |
private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
117 |
{ |
118 |
int currentTag;
|
119 |
boolean end = false; |
120 |
|
121 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
|
122 |
currentTag = parser.next(); |
123 |
|
124 |
while (!end)
|
125 |
{ |
126 |
switch(currentTag)
|
127 |
{ |
128 |
case KXmlParser.START_TAG:
|
129 |
if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
130 |
{ |
131 |
serviceInfo.name = parser.nextText(); |
132 |
} |
133 |
else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
134 |
{ |
135 |
serviceInfo.title = parser.nextText(); |
136 |
} |
137 |
else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
138 |
{ |
139 |
serviceInfo.abstr = parser.nextText(); |
140 |
} |
141 |
else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
142 |
{ |
143 |
String value = new String(); |
144 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
145 |
if (value != null){ |
146 |
serviceInfo.online_resource = value; |
147 |
} |
148 |
} |
149 |
else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
150 |
(parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
|
151 |
{ |
152 |
parser.skipSubTree(); |
153 |
} |
154 |
break;
|
155 |
case KXmlParser.END_TAG:
|
156 |
if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
157 |
end = true;
|
158 |
break;
|
159 |
case KXmlParser.TEXT:
|
160 |
break;
|
161 |
} |
162 |
if (!end)
|
163 |
currentTag = parser.next(); |
164 |
} |
165 |
parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
|
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 serviceInfo the supported formats for the exceptions????
|
191 |
} |
192 |
else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
193 |
{ |
194 |
WMSLayer1_1_1 lyr = new WMSLayer1_1_1();
|
195 |
lyr.parse(parser, layers); |
196 |
|
197 |
if (rootLayer == null) |
198 |
rootLayer = lyr; |
199 |
else {
|
200 |
// Handles when there is no general root layer, will use
|
201 |
// a fake non-queryable one.
|
202 |
if (!rootLayer.equals(getFakeRootLayer())){
|
203 |
WMSLayer1_1_1 aux = (WMSLayer1_1_1) rootLayer; |
204 |
rootLayer = getFakeRootLayer(); |
205 |
rootLayer.getChildren().add(aux); |
206 |
} |
207 |
rootLayer.getChildren().add(lyr); |
208 |
} |
209 |
|
210 |
if (lyr.getName()!=null) |
211 |
layers.put(lyr.getName(), lyr); |
212 |
|
213 |
// Collection layerCollection = layers.values();
|
214 |
// Iterator iter = layerCollection.iterator();
|
215 |
// while (iter.hasNext())
|
216 |
// {
|
217 |
// WMSLayer1_1_1 layer = (WMSLayer1_1_1)iter.next();
|
218 |
// //Add all the SRS that the layer supports to the WMSProtocolHandler if they dont exist already
|
219 |
// for (i=0;i<layer.getAllSrs().size();i++)
|
220 |
// {
|
221 |
//// if (!layer.srs.contains(layer.getAllSrs().elementAt(i)))
|
222 |
//// {
|
223 |
//// this.srs.add(layer.getAllSrs().elementAt(i));
|
224 |
//// }
|
225 |
// }
|
226 |
// }
|
227 |
} |
228 |
else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
229 |
(parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
|
230 |
|
231 |
{ |
232 |
parser.skipSubTree(); |
233 |
} |
234 |
break;
|
235 |
case KXmlParser.END_TAG:
|
236 |
if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
237 |
end = true;
|
238 |
break;
|
239 |
case KXmlParser.TEXT:
|
240 |
break;
|
241 |
} |
242 |
if (!end)
|
243 |
currentTag = parser.next(); |
244 |
} |
245 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
|
246 |
} |
247 |
|
248 |
/**
|
249 |
* <p>Parses the Request tag </p>
|
250 |
*/
|
251 |
private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
252 |
{ |
253 |
int currentTag;
|
254 |
boolean end = false; |
255 |
|
256 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
|
257 |
currentTag = parser.next(); |
258 |
|
259 |
while (!end)
|
260 |
{ |
261 |
switch(currentTag)
|
262 |
{ |
263 |
case KXmlParser.START_TAG:
|
264 |
if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
265 |
{ |
266 |
serviceInfo.operations.put(CapabilitiesTags.GETCAPABILITIES, null);
|
267 |
} |
268 |
else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
269 |
{ |
270 |
// put a null to this key?
|
271 |
// or leave it like it was with a CODE in a vector specifying this operation.
|
272 |
// WMSProtocolHandler.GETMAP_OPERATION
|
273 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
|
274 |
parseGetMapTag(parser); |
275 |
} |
276 |
else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
277 |
{ |
278 |
//serviceInfo.operations.put(WMSProtocolHandler.GETFEATUREINFO_OPERATION)
|
279 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
|
280 |
parseGetFeatureInfoTag(parser); |
281 |
} |
282 |
else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
283 |
{ |
284 |
//serviceInfo.operations.put(WMSProtocolHandler.DESCRIBELAYER_OPERATION)
|
285 |
serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
|
286 |
} |
287 |
else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
288 |
{ |
289 |
serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, null);
|
290 |
} |
291 |
break;
|
292 |
case KXmlParser.END_TAG:
|
293 |
if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
294 |
end = true;
|
295 |
break;
|
296 |
case KXmlParser.TEXT:
|
297 |
break;
|
298 |
} |
299 |
if(!end)
|
300 |
currentTag = parser.next(); |
301 |
} |
302 |
// TODO: does not get such a tag when arrives here!!!!!!
|
303 |
//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
|
304 |
} |
305 |
|
306 |
/**
|
307 |
* <p>Parses the GetMap tag </p>
|
308 |
*/
|
309 |
private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
310 |
{ |
311 |
int currentTag;
|
312 |
boolean end = false; |
313 |
|
314 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
|
315 |
currentTag = parser.next(); |
316 |
|
317 |
while (!end)
|
318 |
{ |
319 |
switch(currentTag)
|
320 |
{ |
321 |
case KXmlParser.START_TAG:
|
322 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
323 |
{ |
324 |
serviceInfo.formats.add(parser.nextText()); |
325 |
} |
326 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
327 |
{ |
328 |
currentTag = parser.nextTag(); |
329 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
330 |
{ |
331 |
currentTag = parser.nextTag(); |
332 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
333 |
{ |
334 |
currentTag = parser.nextTag(); |
335 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
336 |
{ |
337 |
String value = new String(); |
338 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
339 |
if (value != null){ |
340 |
serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
341 |
} |
342 |
} |
343 |
} |
344 |
} |
345 |
} |
346 |
break;
|
347 |
case KXmlParser.END_TAG:
|
348 |
if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
349 |
end = true;
|
350 |
break;
|
351 |
case KXmlParser.TEXT:
|
352 |
break;
|
353 |
} |
354 |
if(!end)
|
355 |
currentTag = parser.next(); |
356 |
} |
357 |
} |
358 |
|
359 |
/**
|
360 |
* <p>Parses the GetMap tag </p>
|
361 |
*/
|
362 |
private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
363 |
{ |
364 |
int currentTag;
|
365 |
boolean end = false; |
366 |
|
367 |
parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
|
368 |
currentTag = parser.next(); |
369 |
|
370 |
while (!end)
|
371 |
{ |
372 |
switch(currentTag)
|
373 |
{ |
374 |
case KXmlParser.START_TAG:
|
375 |
if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
376 |
{ |
377 |
//TODO:
|
378 |
// add the supported formats by the GetFeatureInfo request
|
379 |
//serviceInfo.formats.add(parser.nextText());
|
380 |
} |
381 |
else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
382 |
{ |
383 |
currentTag = parser.nextTag(); |
384 |
if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
385 |
{ |
386 |
currentTag = parser.nextTag(); |
387 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
388 |
{ |
389 |
currentTag = parser.nextTag(); |
390 |
if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
391 |
{ |
392 |
String value = new String(); |
393 |
value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
|
394 |
if (value != null){ |
395 |
serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
396 |
} |
397 |
} |
398 |
} |
399 |
} |
400 |
} |
401 |
break;
|
402 |
case KXmlParser.END_TAG:
|
403 |
if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
404 |
end = true;
|
405 |
break;
|
406 |
case KXmlParser.TEXT:
|
407 |
break;
|
408 |
} |
409 |
if(!end)
|
410 |
currentTag = parser.next(); |
411 |
} |
412 |
} |
413 |
|
414 |
private WMSLayer1_1_1 getFakeRootLayer(){
|
415 |
if (fakeRootLayer == null){ |
416 |
fakeRootLayer = new WMSLayer1_1_1();
|
417 |
fakeRootLayer.setTitle(serviceInfo.title); |
418 |
fakeRootLayer.setQueryable(false);
|
419 |
fakeRootLayer.setName(null);
|
420 |
} |
421 |
return fakeRootLayer;
|
422 |
} |
423 |
/* (non-Javadoc)
|
424 |
* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
|
425 |
*/
|
426 |
protected String parseException(byte[] data) { |
427 |
ArrayList errors = new ArrayList(); |
428 |
KXmlParser kxmlParser = new KXmlParser();
|
429 |
try
|
430 |
{ |
431 |
kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
432 |
int tag;
|
433 |
|
434 |
boolean end = false; |
435 |
tag = kxmlParser.nextTag(); |
436 |
|
437 |
kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
|
438 |
|
439 |
while (!end)
|
440 |
{ |
441 |
switch(tag)
|
442 |
{ |
443 |
case KXmlParser.START_TAG:
|
444 |
if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
445 |
String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
446 |
errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
447 |
String errorMessage = kxmlParser.nextText();
|
448 |
errors.add(errorCode+errorMessage); |
449 |
} |
450 |
break;
|
451 |
case KXmlParser.END_TAG:
|
452 |
if (kxmlParser.getName().compareTo(ExceptionTags.EXCEPTION_ROOT) == 0) |
453 |
end = true;
|
454 |
break;
|
455 |
} |
456 |
if (!end)
|
457 |
{ |
458 |
tag = kxmlParser.nextTag(); |
459 |
} |
460 |
} |
461 |
} |
462 |
catch(XmlPullParserException parser_ex){
|
463 |
System.out.println(parser_ex.getMessage());
|
464 |
parser_ex.printStackTrace(); |
465 |
} |
466 |
catch (IOException ioe) { |
467 |
ioe.printStackTrace(); |
468 |
} |
469 |
String message = errors.size()>0? "" : null; |
470 |
for (int i = 0; i < errors.size(); i++) { |
471 |
message += (String) errors.get(i)+"\n"; |
472 |
} |
473 |
return message;
|
474 |
} |
475 |
|
476 |
} |