Revision 3853 trunk/libraries/libRemoteServices/src/org/gvsig/remoteClient/wms/WMSProtocolHandler.java
| WMSProtocolHandler.java | ||
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import org.gvsig.remoteClient.exceptions.ServerErrorException; |
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import org.gvsig.remoteClient.exceptions.WMSException; |
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import org.gvsig.remoteClient.exceptions.WMSWrongSizeException; |
|
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import org.gvsig.remoteClient.utils.CapabilitiesTags; |
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import org.gvsig.remoteClient.utils.ExceptionTags; |
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import org.gvsig.remoteClient.utils.Utilities; |
| ... | ... | |
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public WMSLayer rootLayer; |
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public Vector srs; |
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// abstract methods to implement by the handlers that implement |
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// the connection to a WMS with certain version. |
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// public abstract String getName(); |
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// public abstract String getVersion(); |
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/** |
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* parses the data retrieved by the WMS in XML format. |
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* It will be mostly the WMS Capabilities, but the implementation |
| ... | ... | |
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port = _port; |
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} |
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|
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/** |
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* <p>Builds a GetCapabilities request that is sent to the WMS |
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* the response will be parse to extract the data needed by the |
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* WMS client</p> |
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*/ |
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public void getCapabilities() |
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{
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URL request = null; |
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try |
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{
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request = new URL(buildCapabilitiesRequest()); |
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} |
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catch(Exception e) |
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{
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e.printStackTrace(); |
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} |
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try |
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{
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File f = com.iver.andami.Utilities.downloadFile(request,"wms_capabilities.xml"); |
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parse(f); |
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} catch(Exception e) |
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{
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//TODO |
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e.printStackTrace(); |
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} |
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} |
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/** |
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* <p>It will send a GetFeatureInfo request to the WMS |
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* Parsing the response and redirecting the info to the WMS client</p> |
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*/ |
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public String getFeatureInfo(WMSStatus status, int x, int y, int featureCount) |
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{
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URL request = null; |
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StringBuffer output = new StringBuffer(); |
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String outputFormat = new String(); |
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String ServiceException = "ServiceExceptionReport"; |
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StringBuffer sb = new StringBuffer(); |
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sb.append("<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>");
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try |
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{
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//TODO: |
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//pass this buildXXXRequest to the WMSProtocolHandlerXXX: The request can depend on the WMS version. |
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request = new URL(buildGetFeatureInfoRequest(status, x, y)); |
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//TODO: |
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//see which output format is being requested. |
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} |
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catch(Exception e) |
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{
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e.printStackTrace(); |
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return ""; |
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} |
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try |
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{
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System.out.println(request.toString()); |
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byte[] buffer = new byte[1024*256]; |
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DataInputStream is = new DataInputStream(request.openStream()); |
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outputFormat = request.openConnection().getContentType(); |
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for (int i = is.read(buffer); i>0; i = is.read(buffer)) |
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{
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String str = new String(buffer,0,i); |
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output.append(str); |
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} |
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is.close(); |
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if ( (outputFormat == null) || (outputFormat.indexOf("xml") != -1)
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||output.toString().toLowerCase().startsWith("<?xml")
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||(outputFormat.indexOf("gml") != -1))
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{
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int tag; |
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KXmlParser kxmlParser = null; |
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kxmlParser = new KXmlParser(); |
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kxmlParser.setInput(new StringReader(output.toString())); |
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tag = kxmlParser.nextTag(); |
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while(tag != KXmlParser.END_DOCUMENT) |
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{
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switch(tag) |
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{
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case KXmlParser.START_TAG: |
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if (kxmlParser.getName().compareTo(ServiceException)==0) |
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{
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sb.append("<INFO>").append(parseException( output.toString().getBytes())).append("</INFO>");
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return sb.toString(); |
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} |
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else if (kxmlParser.getName().compareToIgnoreCase("ERROR")==0)
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return output.toString(); |
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else |
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sb.append("<" + kxmlParser.getName() + ">\n");
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break; |
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case KXmlParser.END_TAG: |
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sb.append("</" + kxmlParser.getName() + ">\n");
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break; |
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case KXmlParser.TEXT: |
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sb.append(kxmlParser.getText()); |
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break; |
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} |
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tag = kxmlParser.next(); |
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} |
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return sb.toString(); |
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} |
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else |
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{
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sb.append("<INFO>").append(PluginServices.getText(this, "info_format_not_supported")).append("</INFO>");
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return sb.toString(); |
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} |
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} |
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catch(XmlPullParserException parserEx) |
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{
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if (output.toString().toLowerCase().indexOf("xml") != -1)
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{
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return output.toString().trim(); |
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} |
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else |
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{
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sb.append("<INFO>").append(PluginServices.getText(this, "info_format_not_supported")).append("</INFO>");
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return sb.toString(); |
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} |
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} |
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catch(Exception e) |
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{
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e.printStackTrace(); |
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sb.append("<INFO>").append(PluginServices.getText(this, "info_format_not_supported")).append("</INFO>");
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return sb.toString(); |
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} |
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} |
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/** |
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* <p>Builds a GetMap request that is sent to the WMS |
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* the response (image) will be redirect to the |
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* WMS client</p> |
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*/ |
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*/ |
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public byte[] getMap(WMSStatus status) throws ServerErrorException, WMSException |
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{
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URL request = null; |
| ... | ... | |
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URLConnection conn = request.openConnection(); |
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System.out.println(request.toString()); |
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String type = conn.getContentType(); |
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byte[] imageBytes = null; |
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byte[] buffer = new byte[1024*256]; |
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InputStream is = conn.getInputStream(); |
| ... | ... | |
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if ((type !=null && !type.subSequence(0,5).equals("image"))
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||(Utilities.isTextData(imageBytes))) |
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{
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WMSException wmsEx = null; |
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String exceptionMessage = parseException(imageBytes); |
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if (exceptionMessage!=null)
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if (exceptionMessage==null)
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{
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throw new WMSException(exceptionMessage); |
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} |
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else |
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{
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String error = new String(imageBytes); |
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String error = new String(imageBytes); |
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int pos = error.indexOf("<?xml");
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if (pos!= -1) |
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{
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String xml = error.substring(pos,error.length()); |
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exceptionMessage = parseException(xml.getBytes()); |
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if (exceptionMessage!=null) |
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throw new WMSException(exceptionMessage); |
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else |
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throw new ServerErrorException(new String(imageBytes)); |
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if (exceptionMessage == null) |
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exceptionMessage = new String(imageBytes); |
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} |
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throw new ServerErrorException(new String(imageBytes)); |
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} |
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//WMSWrongSizeException.check(exceptionMessage); |
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// error desconocido. |
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wmsEx = new WMSException(exceptionMessage); |
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wmsEx.setWMSMessage(new String(imageBytes)); |
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throw wmsEx; |
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} |
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return imageBytes; |
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|
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return imageBytes; |
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} |
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catch(IOException e) |
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{
|
| ... | ... | |
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//kxmlParser.require(KXmlParser.END_DOCUMENT, null, null); |
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} |
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} |
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catch(XmlPullParserException parser_ex){
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//System.out.println(parser_ex.getMessage()); |
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catch(XmlPullParserException parser_ex){
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parser_ex.printStackTrace(); |
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} |
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catch (IOException ioe) {
|
| ... | ... | |
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} |
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return message; |
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} |
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|
|
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/** |
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* <p>Builds a GetCapabilities request that is sent to the WMS |
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* the response will be parse to extract the data needed by the |
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* WMS client</p> |
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*/ |
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public void getCapabilities() |
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{
|
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URL request = null; |
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try |
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{
|
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request = new URL(buildCapabilitiesRequest()); |
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} |
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catch(Exception e) |
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{
|
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e.printStackTrace(); |
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} |
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try |
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{
|
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File f = com.iver.andami.Utilities.downloadFile(request,"wms_capabilities.xml"); |
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parse(f); |
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} catch(Exception e) |
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{
|
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//TODO |
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e.printStackTrace(); |
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} |
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} |
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|
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/** |
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* <p>It will send a GetFeatureInfo request to the WMS |
|
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* Parsing the response and redirecting the info to the WMS client</p> |
|
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*/ |
|
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public String getFeatureInfo(WMSStatus status, int x, int y, int featureCount) |
|
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{
|
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URL request = null; |
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StringBuffer output = new StringBuffer(); |
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String outputFormat = new String(); |
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String ServiceException = "ServiceExceptionReport"; |
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|
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StringBuffer sb = new StringBuffer(); |
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sb.append("<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>");
|
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|
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try |
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{
|
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//TODO: |
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//pass this buildXXXRequest to the WMSProtocolHandlerXXX: The request can depend on the WMS version. |
|
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request = new URL(buildGetFeatureInfoRequest(status, x, y)); |
|
| 278 |
|
|
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//TODO: |
|
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//see which output format is being requested. |
|
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} |
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catch(Exception e) |
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{
|
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e.printStackTrace(); |
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} |
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|
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try |
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{
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System.out.println(request.toString()); |
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//File f = new File("c:\\featureInfo.xml");
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//DataOutputStream dos = new DataOutputStream(new FileOutputStream(f)); |
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byte[] buffer = new byte[1024*256]; |
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DataInputStream is = new DataInputStream(request.openStream()); |
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outputFormat = request.openConnection().getContentType(); |
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|
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for (int i = is.read(buffer); i>0; i = is.read(buffer)){
|
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//dos.write(buffer, 0, i); |
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String str = new String(buffer,0,i); |
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//System.out.println("str:" + str);
|
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output.append(str); |
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//System.out.println("output:" +output.toString());
|
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} |
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|
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//dos.close(); |
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is.close(); |
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if ( (outputFormat == null) || (outputFormat.indexOf("xml") != -1)
|
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||output.toString().toLowerCase().startsWith("<?xml")
|
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||(outputFormat.indexOf("gml") != -1))
|
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{
|
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int tag; |
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KXmlParser kxmlParser = null; |
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kxmlParser = new KXmlParser(); |
|
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//kxmlParser.setInput(new FileReader(f)); |
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kxmlParser.setInput(new StringReader(output.toString())); |
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|
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tag = kxmlParser.nextTag(); |
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//if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT ) |
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{
|
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while(tag != KXmlParser.END_DOCUMENT) |
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{
|
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switch(tag) |
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{
|
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case KXmlParser.START_TAG: |
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if (kxmlParser.getName().compareTo(ServiceException)==0) |
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{
|
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sb.append("<INFO>").append(parseException( output.toString().getBytes())).append("</INFO>");
|
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return sb.toString(); |
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} |
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else if (kxmlParser.getName().compareToIgnoreCase("ERROR")==0)
|
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return output.toString(); |
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else |
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sb.append("<" + kxmlParser.getName() + ">\n");
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break; |
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case KXmlParser.END_TAG: |
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sb.append("</" + kxmlParser.getName() + ">\n");
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break; |
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case KXmlParser.TEXT: |
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sb.append(kxmlParser.getText()); |
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break; |
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} |
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tag = kxmlParser.next(); |
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} |
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} |
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//System.out.println(sb.toString()); |
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return sb.toString(); |
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} |
|
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else |
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{
|
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sb.append("<INFO>").append(PluginServices.getText(this, "info_format_not_supported")).append("</INFO>");
|
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return sb.toString(); |
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} |
|
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} |
|
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catch(XmlPullParserException parserEx) |
|
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{
|
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| 355 |
if (output.toString().toLowerCase().indexOf("xml") != -1)
|
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return output.toString().trim(); |
|
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else |
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{
|
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sb.append("<INFO>").append(PluginServices.getText(this, "info_format_not_supported")).append("</INFO>");
|
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return sb.toString(); |
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} |
|
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} |
|
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catch(Exception e) |
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{
|
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| 365 |
e.printStackTrace(); |
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sb.append("<INFO>").append(PluginServices.getText(this, "info_format_not_supported")).append("</INFO>");
|
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return sb.toString(); |
|
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|
|
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} |
|
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} |
|
| 371 | 354 |
|
| 372 | 355 |
/** |
| 373 | 356 |
* Builds the GetCapabilitiesRequest according to the OGC WMS Specifications |
| ... | ... | |
| 483 | 466 |
if (status.getTransparency()) {
|
| 484 | 467 |
req += "&TRANSPARENT=TRUE"; |
| 485 | 468 |
} |
| 486 |
|
|
| 487 | 469 |
// |
| 488 | 470 |
// if (status.getBGColor() != null) {
|
| 489 | 471 |
// req += ("&COLOR=" + status.getBGColor());
|
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