svn-gvsig-desktop / tags / v1_0_2_Build_901 / libraries / libRemoteServices / src / org / gvsig / remoteClient / wms / wms_1_1_1 / WMSProtocolHandler1_1_1.java @ 10571
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package org.gvsig.remoteClient.wms.wms_1_1_1; |
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import java.io.BufferedReader; |
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import java.io.ByteArrayInputStream; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.FileNotFoundException; |
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import java.io.FileReader; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.TreeMap; |
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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.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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/**
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* <p>
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* Describes the handler to comunicate to a WMS 1.1.1
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* </p>
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*/
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public class WMSProtocolHandler1_1_1 extends org.gvsig.remoteClient.wms.WMSProtocolHandler { |
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private WMSLayer1_1_1 fakeRootLayer;
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public WMSProtocolHandler1_1_1()
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{
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this.version = "1.1.1"; |
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this.name = "WMS1.1.1"; |
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this.serviceInfo = new ServiceInformation(); |
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this.layers = new TreeMap(); |
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} |
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//------------------------------------------------------------------------------
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// Parsing methods....
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//------------------------------------------------------------------------------
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/**
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* <p>Parse the xml data retrieved from the WMS, it will parse the WMS Capabilities</p>
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*
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*/
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public void parse(File f) |
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{
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rootLayer = null;
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FileReader reader = null; |
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try
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{
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reader = new FileReader(f); |
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BufferedReader br = new BufferedReader(reader); |
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char[] buffer = new char[100]; |
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br.read(buffer); |
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StringBuffer st = new StringBuffer(new String(buffer)); |
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String searchText = "encoding=\""; |
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int index = st.indexOf(searchText);
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if (index>-1) { |
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st.delete(0, index+searchText.length());
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encoding = st.substring(0, st.indexOf("\"")); |
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} |
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} catch(FileNotFoundException ex) { |
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ex.printStackTrace(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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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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try
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{
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kxmlParser.setInput(new FileInputStream(f), encoding); |
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kxmlParser.nextTag(); |
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if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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{
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kxmlParser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITIES_ROOT1_1_1);
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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(CapabilitiesTags.SERVICE )==0) |
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{
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parseServiceTag(kxmlParser); |
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} |
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else if (kxmlParser.getName().compareTo(CapabilitiesTags.CAPABILITY)==0) |
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{
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parseCapabilityTag(kxmlParser); |
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} |
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break;
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case KXmlParser.END_TAG:
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break;
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case KXmlParser.TEXT:
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//System.out.println("[TEXT]["+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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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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parser_ex.printStackTrace(); |
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} |
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catch (IOException ioe) { |
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ioe.printStackTrace(); |
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} finally {
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} |
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// In the parsing process the layer has been filled
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} |
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/**
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* <p>Parses the Service Information </p>
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*/
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private void parseServiceTag(KXmlParser parser) throws IOException, XmlPullParserException |
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{
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int currentTag;
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boolean end = false; |
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parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.SERVICE);
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currentTag = parser.next(); |
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while (!end)
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{
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switch(currentTag)
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{
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.NAME)==0) |
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{
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serviceInfo.name = parser.nextText(); |
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.TITLE)==0) |
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{
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serviceInfo.title = parser.nextText(); |
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.ABSTRACT)==0) |
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{
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serviceInfo.abstr = parser.nextText(); |
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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{
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String value = new String(); |
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value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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if (value != null){ |
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serviceInfo.online_resource = value; |
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} |
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} |
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else if ((parser.getName().compareTo(CapabilitiesTags.KEYWORDLIST)==0) || |
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(parser.getName().compareTo(CapabilitiesTags.CONTACTINFORMATION)==0))
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{
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parser.skipSubTree(); |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.SERVICE) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end)
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currentTag = parser.next(); |
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} |
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parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.SERVICE);
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} |
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/**
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* <p>Parses the Capability Tag </p>
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*/
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private void parseCapabilityTag(KXmlParser parser) throws IOException, XmlPullParserException |
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{
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int currentTag;
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boolean end = false; |
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parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.CAPABILITY);
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currentTag = parser.next(); |
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while (!end)
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{
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switch(currentTag)
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{
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.REQUEST)==0) |
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{
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parseRequestTag(parser); |
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.EXCEPTION)==0) |
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{
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//TODO:
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//Add to serviceInfo the supported formats for the exceptions????
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.LAYER)==0) |
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{
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WMSLayer1_1_1 lyr = new WMSLayer1_1_1();
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lyr.parse(parser, layers); |
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if (rootLayer == null) |
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rootLayer = lyr; |
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else {
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// Handles when there is no general root layer, will use
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// a fake non-queryable one.
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if (!rootLayer.equals(getFakeRootLayer())){
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WMSLayer1_1_1 aux = (WMSLayer1_1_1) rootLayer; |
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rootLayer = getFakeRootLayer(); |
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rootLayer.getChildren().add(aux); |
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} |
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rootLayer.getChildren().add(lyr); |
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} |
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if (lyr.getName()!=null) |
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layers.put(lyr.getName(), lyr); |
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// Collection layerCollection = layers.values();
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// Iterator iter = layerCollection.iterator();
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// while (iter.hasNext())
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// {
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// WMSLayer1_1_1 layer = (WMSLayer1_1_1)iter.next();
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// //Add all the SRS that the layer supports to the WMSProtocolHandler if they dont exist already
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// for (i=0;i<layer.getAllSrs().size();i++)
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// {
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//// if (!layer.srs.contains(layer.getAllSrs().elementAt(i)))
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//// {
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//// this.srs.add(layer.getAllSrs().elementAt(i));
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//// }
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// }
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// }
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} |
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else if ((parser.getName().compareTo(CapabilitiesTags.VENDORSPECIFICCAPABILITIES)==0) || |
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(parser.getName().compareTo(CapabilitiesTags.USERDEFINEDSYMBOLIZATION )==0))
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{
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parser.skipSubTree(); |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.CAPABILITY) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end)
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currentTag = parser.next(); |
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} |
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//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.CAPABILITY);
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} |
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/**
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* <p>Parses the Request tag </p>
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*/
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private void parseRequestTag(KXmlParser parser) throws IOException, XmlPullParserException |
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{
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int currentTag;
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boolean end = false; |
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parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.REQUEST);
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currentTag = parser.next(); |
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while (!end)
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{
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switch(currentTag)
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{
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.GETCAPABILITIES)==0) |
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{
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serviceInfo.operations.put(CapabilitiesTags.GETCAPABILITIES, null);
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.GETMAP)==0) |
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{
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// put a null to this key?
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// or leave it like it was with a CODE in a vector specifying this operation.
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// WMSProtocolHandler.GETMAP_OPERATION
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serviceInfo.operations.put(CapabilitiesTags.GETMAP, null);
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parseGetMapTag(parser); |
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO)==0) |
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{
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//serviceInfo.operations.put(WMSProtocolHandler.GETFEATUREINFO_OPERATION)
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serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, null);
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parseGetFeatureInfoTag(parser); |
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.DESCRIBELAYER)==0) |
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{
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//serviceInfo.operations.put(WMSProtocolHandler.DESCRIBELAYER_OPERATION)
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serviceInfo.operations.put(CapabilitiesTags.DESCRIBELAYER, null);
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC)==0) |
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{
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serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, null);
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parseGetLegendGraphicTag(parser); |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.REQUEST) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if(!end)
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currentTag = parser.next(); |
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} |
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// TODO: does not get such a tag when arrives here!!!!!!
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//parser.require(KXmlParser.END_TAG, null, CapabilitiesTags.REQUEST);
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} |
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/**
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* <p>Parses the GetMap tag </p>
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*/
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private void parseGetMapTag(KXmlParser parser) throws IOException, XmlPullParserException |
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{
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int currentTag;
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boolean end = false; |
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parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETMAP);
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currentTag = parser.next(); |
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while (!end)
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{
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switch(currentTag)
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{
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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{
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serviceInfo.formats.add(parser.nextText()); |
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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{
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currentTag = parser.nextTag(); |
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if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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{
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currentTag = parser.nextTag(); |
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if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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{
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currentTag = parser.nextTag(); |
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if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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{
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String value = new String(); |
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value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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if (value != null){ |
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serviceInfo.operations.put(CapabilitiesTags.GETMAP, value); |
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} |
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} |
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} |
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} |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.GETMAP) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if(!end)
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currentTag = parser.next(); |
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} |
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} |
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/**
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* <p>Parses the GetFeatureInfoTag tag </p>
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*/
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private void parseGetFeatureInfoTag(KXmlParser parser) throws IOException, XmlPullParserException |
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{
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int currentTag;
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boolean end = false; |
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parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETFEATUREINFO);
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currentTag = parser.next(); |
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while (!end)
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{
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switch(currentTag)
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{
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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{
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//TODO:
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// add the supported formats by the GetFeatureInfo request
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//serviceInfo.formats.add(parser.nextText());
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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{
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currentTag = parser.nextTag(); |
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if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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{
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currentTag = parser.nextTag(); |
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if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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{
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currentTag = parser.nextTag(); |
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if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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{
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String value = new String(); |
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value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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if (value != null){ |
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serviceInfo.operations.put(CapabilitiesTags.GETFEATUREINFO, value); |
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} |
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} |
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} |
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} |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.GETFEATUREINFO) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
|
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} |
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if(!end)
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currentTag = parser.next(); |
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} |
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} |
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|
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/**
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* <p>Parses the GetFeatureInfoTag tag </p>
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*/
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private void parseGetLegendGraphicTag(KXmlParser parser) throws IOException, XmlPullParserException |
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{
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int currentTag;
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boolean end = false; |
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parser.require(KXmlParser.START_TAG, null, CapabilitiesTags.GETLEGENDGRAPHIC);
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currentTag = parser.next(); |
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|
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while (!end)
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{
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switch(currentTag)
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{
|
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case KXmlParser.START_TAG:
|
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if (parser.getName().compareTo(CapabilitiesTags.FORMAT)==0) |
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{
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//TODO:
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// add the supported formats by the GetLegendGraphic request
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//serviceInfo.formats.add(parser.nextText());
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} |
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else if (parser.getName().compareTo(CapabilitiesTags.DCPTYPE)==0) |
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{
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currentTag = parser.nextTag(); |
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if(parser.getName().compareTo(CapabilitiesTags.HTTP)==0) |
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{
|
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currentTag = parser.nextTag(); |
| 443 |
if(parser.getName().compareTo(CapabilitiesTags.GET)==0) |
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{
|
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currentTag = parser.nextTag(); |
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if (parser.getName().compareTo(CapabilitiesTags.ONLINERESOURCE)==0) |
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{
|
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String value = new String(); |
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value = parser.getAttributeValue("", CapabilitiesTags.XLINK_HREF);
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if (value != null){ |
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serviceInfo.operations.put(CapabilitiesTags.GETLEGENDGRAPHIC, value); |
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} |
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} |
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} |
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} |
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} |
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo(CapabilitiesTags.GETLEGENDGRAPHIC) == 0) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if(!end)
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currentTag = parser.next(); |
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} |
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} |
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|
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|
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private WMSLayer1_1_1 getFakeRootLayer(){
|
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if (fakeRootLayer == null){ |
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fakeRootLayer = new WMSLayer1_1_1();
|
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fakeRootLayer.setTitle(serviceInfo.title); |
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fakeRootLayer.setQueryable(false);
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fakeRootLayer.setName(null);
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} |
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return fakeRootLayer;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#parseException(byte[])
|
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*/
|
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protected String parseException(byte[] data) { |
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ArrayList errors = new ArrayList(); |
| 485 |
KXmlParser kxmlParser = new KXmlParser();
|
| 486 |
try
|
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{
|
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kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
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int tag;
|
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|
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boolean end = false; |
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tag = kxmlParser.nextTag(); |
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|
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//Comentar temporalmente para subsanar el hecho de que SimonCit me devuelve las capabilities en un GetLegendGraphic!!!
|
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kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
|
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|
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while (!end)
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{
|
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switch(tag)
|
| 500 |
{
|
| 501 |
case KXmlParser.START_TAG:
|
| 502 |
if (kxmlParser.getName().compareTo(ExceptionTags.SERVICE_EXCEPTION)==0){ |
| 503 |
String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
| 504 |
errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
| 505 |
String errorMessage = kxmlParser.nextText();
|
| 506 |
errors.add(errorCode+errorMessage); |
| 507 |
} |
| 508 |
break;
|
| 509 |
case KXmlParser.END_TAG:
|
| 510 |
if (kxmlParser.getName().compareTo(ExceptionTags.EXCEPTION_ROOT) == 0) |
| 511 |
end = true;
|
| 512 |
break;
|
| 513 |
} |
| 514 |
if (!end)
|
| 515 |
{
|
| 516 |
tag = kxmlParser.nextTag(); |
| 517 |
} |
| 518 |
} |
| 519 |
} |
| 520 |
catch(XmlPullParserException parser_ex){
|
| 521 |
System.out.println(parser_ex.getMessage());
|
| 522 |
parser_ex.printStackTrace(); |
| 523 |
} |
| 524 |
catch (IOException ioe) { |
| 525 |
ioe.printStackTrace(); |
| 526 |
} |
| 527 |
String message = errors.size()>0? "" : null; |
| 528 |
for (int i = 0; i < errors.size(); i++) { |
| 529 |
message += (String) errors.get(i)+"\n"; |
| 530 |
} |
| 531 |
return message;
|
| 532 |
} |
| 533 |
|
| 534 |
} |