gvsig-raster / org.gvsig.raster.wms / trunk / org.gvsig.raster.wms / org.gvsig.raster.wms.remoteclient / src / main / java / org / gvsig / remoteclient / wms / wms_1_3_0 / WMSProtocolHandler1_3_0.java @ 3325
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.remoteclient.wms.wms_1_3_0; |
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import java.io.ByteArrayInputStream; |
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import java.io.File; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Enumeration; |
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import java.util.TreeMap; |
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import org.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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import org.gvsig.compat.net.ICancellable; |
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import org.gvsig.remoteclient.epsg.CrsAxisOrder; |
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import org.gvsig.remoteclient.utils.BoundaryBox; |
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import org.gvsig.remoteclient.utils.CapabilitiesTags; |
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import org.gvsig.remoteclient.utils.EncodingXMLParser; |
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import org.gvsig.remoteclient.utils.ExceptionTags; |
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import org.gvsig.remoteclient.wms.WMSLayer; |
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import org.gvsig.remoteclient.wms.WMSServiceInformation; |
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import org.gvsig.remoteclient.wms.WMSStatus; |
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import org.gvsig.remoteclient.wms.request.WMSGetCapabilitiesRequest; |
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import org.gvsig.remoteclient.wms.request.WMSGetFeatureInfoRequest; |
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import org.gvsig.remoteclient.wms.request.WMSGetLegendGraphicRequest; |
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import org.gvsig.remoteclient.wms.request.WMSGetMapRequest; |
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import org.gvsig.remoteclient.wms.wms_1_1_1.WMSProtocolHandler1_1_1; |
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import org.gvsig.remoteclient.wms.wms_1_3_0.request.WMSGetCapabilitiesRequest1_3_0; |
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import org.gvsig.remoteclient.wms.wms_1_3_0.request.WMSGetFeatureInfoRequest1_1_3; |
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import org.gvsig.remoteclient.wms.wms_1_3_0.request.WMSGetLegendGraphicRequest1_1_3; |
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import org.gvsig.remoteclient.wms.wms_1_3_0.request.WMSGetMapRequest1_1_3; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* <p>
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* Describes the handler to comunicate to a WMS 1.3.0
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* </p>
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*/
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public class WMSProtocolHandler1_3_0 extends org.gvsig.remoteclient.wms.WMSProtocolHandler { |
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private static final Logger logger = LoggerFactory.getLogger(WMSProtocolHandler1_3_0.class); |
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private WMSLayer1_3_0 fakeRootLayer;
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public WMSProtocolHandler1_3_0()
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{
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this.version = "1.3.0"; |
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this.name = "WMS1.3.0"; |
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this.serviceInfo = new WMSServiceInformation(); |
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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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@Override
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public void getCapabilities(WMSStatus status, boolean override, |
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ICancellable cancel) {
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super.getCapabilities(status, override, cancel);
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if (rootLayer!=null && status!=null && !status.isXyAxisOrder()) { |
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/* WMSLayer parser gets no information about the user preferences regarding
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axis order, so the bboxes should be post-processed here,
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where we get the user preference from the WMSStatus
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*/
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processLayer(rootLayer); |
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} |
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} |
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/**
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* WMSLayer parser gets no information about the user preferences regarding
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* axis order, so the bboxes should be should be post-processed here,
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* where we get the information from at the
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* protocol hanlder
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* @param layer
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*/
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protected void processLayer(WMSLayer layer) { |
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if (layer.getBboxes()!=null) { |
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Collection<BoundaryBox> col = (Collection<BoundaryBox>) layer.getBboxes().values(); |
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for (BoundaryBox bbox: col) {
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if (!CrsAxisOrder.isXyAxisOrder(bbox.getSrs())) {
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bbox.setXmin(bbox.getYmin()); |
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bbox.setYmin(bbox.getXmin()); |
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bbox.setXmax(bbox.getYmax()); |
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bbox.setYmax(bbox.getXmax()); |
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} |
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} |
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} |
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ArrayList children = layer.getChildren();
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if (children!=null) { |
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for (int i=0; i<children.size(); i++) { |
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WMSLayer child = (WMSLayer) children.get(i); |
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processLayer(child); |
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} |
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} |
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} |
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public boolean parseCapabilities(File f) |
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{
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rootLayer = null;
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int tag;
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EncodingXMLParser kxmlParser = null;
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kxmlParser = new EncodingXMLParser();
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try
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{
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kxmlParser.setInput(f); |
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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_3_0);
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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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}//while !END_DOCUMENT
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} |
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} |
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catch(XmlPullParserException parser_ex){
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logger.warn("Error parsing capabilites.",parser_ex);
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return false; |
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} |
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catch (IOException ioe) { |
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logger.warn("Error parsing capabilites.",ioe);
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return false; |
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} finally {
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return true; |
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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 serviceInformation the supported exception formats.
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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_3_0 lyr = new WMSLayer1_3_0();
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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_3_0 aux = (WMSLayer1_3_0) 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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lyr.parse(parser, layers); |
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if (lyr.getName()!=null) |
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layers.put(lyr.getName(), lyr); |
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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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private WMSLayer1_3_0 getFakeRootLayer(){
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if (fakeRootLayer == null){ |
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fakeRootLayer = new WMSLayer1_3_0();
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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(); |
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KXmlParser kxmlParser = new KXmlParser();
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try
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{
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kxmlParser.setInput(new ByteArrayInputStream(data), encoding); |
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kxmlParser.nextTag(); |
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int tag;
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if ( kxmlParser.getEventType() != KXmlParser.END_DOCUMENT )
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{
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kxmlParser.require(KXmlParser.START_TAG, null, ExceptionTags.EXCEPTION_ROOT);
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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(ExceptionTags.SERVICE_EXCEPTION)==0){ |
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String errorCode = kxmlParser.getAttributeValue("", ExceptionTags.CODE); |
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errorCode = (errorCode != null) ? "["+errorCode+"] " : ""; |
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String errorMessage = kxmlParser.nextText();
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errors.add(errorCode+errorMessage); |
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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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} |
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tag = kxmlParser.nextTag(); |
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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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logger.warn("",parser_ex);
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} |
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catch (IOException ioe) { |
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logger.warn("",ioe);
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} |
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String message = errors.size()>0? "" : null; |
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for (int i = 0; i < errors.size(); i++) { |
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message += (String) errors.get(i)+"\n"; |
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} |
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return message;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#createGetFeatureInfoRequest(org.gvsig.remoteClient.wms.WMSStatus, int, int)
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*/
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protected WMSGetFeatureInfoRequest createGetFeatureInfoRequest(
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WMSStatus status, int x, int y) { |
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return new WMSGetFeatureInfoRequest1_1_3(status, this, x, y); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#createGetMapRequest(org.gvsig.remoteClient.wms.WMSStatus)
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*/
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protected WMSGetMapRequest createGetMapRequest(WMSStatus status) {
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return new WMSGetMapRequest1_1_3(status, this); |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.remoteClient.wms.WMSProtocolHandler#createGetLegendGraphicRequest(org.gvsig.remoteClient.wms.WMSStatus, java.lang.String)
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*/
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protected WMSGetLegendGraphicRequest createGetLegendGraphicRequest(
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WMSStatus status, String layerName) {
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return new WMSGetLegendGraphicRequest1_1_3(status, this, layerName); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.remoteclient.wms.WMSProtocolHandler#createGetCapabilitiesRequest(org.gvsig.remoteclient.wms.WMSStatus)
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*/
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protected WMSGetCapabilitiesRequest createGetCapabilitiesRequest(
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WMSStatus status) {
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return new WMSGetCapabilitiesRequest1_3_0(status, this); |
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} |
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} |