/*
* GISToolkit - Geographical Information System Toolkit
* (C) 2002, Ithaqua Enterprises Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
package gistoolkit.server.mapservice;
import java.awt.Color;
import gistoolkit.server.MapRequest;
import java.io.*;
import gistoolkit.features.Envelope;
import gistoolkit.server.*;
import gistoolkit.display.Style;
/**
* Class to create a map request from the input parameters.
*/
public class OGC1_1_1Parser extends OGCParser{
public String getVersion(){return "1.1.1";}
/** Creates new OGCParser */
public OGC1_1_1Parser() {
}
public static final String REQUEST="REQUEST";
public static final String LAYERS="LAYERS";
public static final String QUERY_LAYERS="QUERY_LAYERS";
public static final String STYLES="STYLES";
public static final String SRS="SRS";
public static final String BBOX="BBOX";
public static final String WIDTH="WIDTH";
public static final String HEIGHT="HEIGHT";
public static final String FORMAT="FORMAT";
public static final String TRANSPARENT="TRANSPARENT";
public static final String BGCOLOR="BGCOLOR";
public static final String EXCEPTIONS="EXCEPTIONS";
public static final String SERVICE="SERVICE";
public static final String INFO_FORMAT="INFO_FORMAT";
public static final String X_POINT="X";
public static final String Y_POINT="Y";
public static final String FEATURE_COUNT="FEATURE_COUNT";
public static final String FILTER = "Filter";
/** Create a map request given the web request. */
public MapRequest getMapRequest(Request inRequest) throws Exception{
MapRequest tempRequest = new MapRequest();
// the request
tempRequest.setRequest(getRequest(inRequest.getParameter(REQUEST)));
if (tempRequest.getRequest() == MapRequest.REQUEST_GET_MAP){
// the layers
String tempString = inRequest.getParameter(LAYERS);
if (tempString == null) throw new Exception("The parameter "+LAYERS+" is required, it is a comma delimited list of layer names.");
tempRequest.setLayers(getListFromString(tempString));
// the Styles
tempRequest.setStyles(getListFromString(inRequest.getParameter(STYLES)));
// the SRS
setSRS(tempRequest, inRequest.getParameter(SRS));
// the Bounding Box
tempString = inRequest.getParameter(BBOX);
if (tempString == null) throw new Exception("Error Parsing "+BBOX+" minx,miny,maxx,maxy is required for request type "+inRequest.getParameter(REQUEST));
setBoundingBox(tempRequest, inRequest.getParameter(BBOX));
// the width
tempString = inRequest.getParameter(WIDTH);
if (tempString == null) throw new Exception("A value is required for "+WIDTH);
try{
tempRequest.setWidth(Integer.parseInt(tempString));
}
catch (Exception e){throw new Exception ("Error Parsing "+WIDTH+" Value="+tempString);}
// the Height
tempString = inRequest.getParameter(HEIGHT);
if (tempString == null) throw new Exception("A value is required for "+HEIGHT);
try{
tempRequest.setHeight(Integer.parseInt(tempString));
}
catch (Exception e){throw new Exception ("Error Parsing "+HEIGHT+" Value="+tempString);}
// the Format
tempRequest.setFormat(getFormat(inRequest.getParameter(FORMAT)));
// the transparency of the background.
tempString = inRequest.getParameter(TRANSPARENT);
if (tempString != null){
tempRequest.setTransparent(Boolean.getBoolean(tempString));
}
else tempRequest.setTransparent(false);
// the Background Color
tempString = inRequest.getParameter(BGCOLOR);
if (tempString != null){
try{
Color tempColor = new Color(Integer.parseInt(tempString));
tempRequest.setBackgroundColor(tempColor);
}
catch (Exception e){ throw new Exception("Error Parsing "+BGCOLOR+" Value="+tempString);}
}
else tempRequest.setBackgroundColor(Color.white);
// and filters that may be present. (Proprietary Parameter)
String tempFilters = inRequest.getParameter(FILTER);
if (tempFilters != null){
tempRequest.setFilters(getFilters(tempFilters));
}
}
// parse a capabilities request.
if (tempRequest.getRequest() == MapRequest.REQUEST_GET_CAPABILITIES){
// service parameter.
String tempString = inRequest.getParameter(SERVICE);
if (tempString == null) throw new Exception("Error Parsing "+SERVICE+" This parameter must be present and set to the value \"WMS\"");
if (!tempString.equals("WMS")) throw new Exception("Error "+SERVICE+" parameter must equal WMS");
}
// parse a feature info request.
if (tempRequest.getRequest() == MapRequest.REQUEST_GET_FEATURE_INFO){
// the layers
String tempString = inRequest.getParameter(QUERY_LAYERS);
if (tempString == null) throw new Exception("The parameter "+QUERY_LAYERS+" is required, it is a comma delimited list of layer names.");
tempRequest.setLayers(getListFromString(tempString));
// the SRS
setSRS(tempRequest, inRequest.getParameter(SRS));
// the Bounding Box
tempString = inRequest.getParameter(BBOX);
if (tempString == null) throw new Exception("Error Parsing "+BBOX+" minx,miny,maxx,maxy is required for request type "+inRequest.getParameter(REQUEST));
setBoundingBox(tempRequest, inRequest.getParameter(BBOX));
// the width
tempString = inRequest.getParameter(WIDTH);
if (tempString == null) throw new Exception("A value is required for "+WIDTH);
try{
tempRequest.setWidth(Integer.parseInt(tempString));
}
catch (Exception e){throw new Exception ("Error Parsing "+WIDTH+" Value="+tempString);}
// the Height
tempString = inRequest.getParameter(HEIGHT);
if (tempString == null) throw new Exception("A value is required for "+HEIGHT);
try{
tempRequest.setHeight(Integer.parseInt(tempString));
}
catch (Exception e){throw new Exception ("Error Parsing "+HEIGHT+" Value="+tempString);}
// The Info Format.
tempString = inRequest.getParameter(INFO_FORMAT);
tempRequest.setFormat(tempString);
// The Number of features to return information about, default is 1.
tempString = inRequest.getParameter(FEATURE_COUNT);
if (tempString != null){
try{
tempRequest.setFeatureCount(Integer.parseInt(tempString));
}
catch(Exception e){
throw new Exception("Error Parsing "+FEATURE_COUNT+" Must be an integer, value = "+tempString);
}
}
// The X coordinate
tempString = inRequest.getParameter(X_POINT);
if (tempString == null) throw new Exception("Error Parsing "+X_POINT+" A value is required.");
int tempXPoint = 0;
try{tempXPoint = Integer.parseInt(tempString);}catch (Exception e){throw new Exception("Error parsing "+X_POINT+" Not a valid integer Value="+tempString);}
tempRequest.setXPoint(tempXPoint);
// the Y coordinate
tempString = inRequest.getParameter(Y_POINT);
if (tempString == null) throw new Exception("Error Parsing "+Y_POINT+" A value is required.");
int tempYPoint = 0;
try{tempYPoint = Integer.parseInt(tempString);}catch (Exception e){throw new Exception("Error parsing "+Y_POINT+" Not a valid integer Value="+tempString);}
tempRequest.setYPoint(tempYPoint);
}
return tempRequest;
}
private static String getRequest(String inRequest) throws Exception{
if (inRequest == null) throw new Exception ("A value for "+REQUEST+" is required");
if (inRequest.equalsIgnoreCase("Map")) return MapRequest.REQUEST_GET_MAP;
if (inRequest.equalsIgnoreCase("GetMap")) return MapRequest.REQUEST_GET_MAP;
if (inRequest.equalsIgnoreCase("Capabilities")) return MapRequest.REQUEST_GET_CAPABILITIES;
if (inRequest.equalsIgnoreCase("GetCapabilities")) return MapRequest.REQUEST_GET_CAPABILITIES;
if (inRequest.equalsIgnoreCase("Feature_info")) return MapRequest.REQUEST_GET_FEATURE_INFO;
if (inRequest.equalsIgnoreCase("GetFeatureInfo")) return MapRequest.REQUEST_GET_FEATURE_INFO;
throw new Exception("Unrecognized Request "+inRequest);
}
/** get the capabilities request. */
public void getCapabilitiesRequest(MapRequest inRequest, Response inResponse, Server inServer) throws Exception{
// find the service.
String tempServiceName = inRequest.getServiceName();
if (tempServiceName == null) throw new Exception("Service Name is required for capabilities.");
Service tempService = inServer.getService(tempServiceName);
if (tempService == null) throw new Exception("Can not find Service "+tempServiceName+" on this server.");
// parse out the prefix of the called URL
String tempCalledURL = inRequest.getCalledURL();
String tempCalledURLBase = inRequest.getCalledURL();
if (tempCalledURL != null){
int tempIndex = tempCalledURL.lastIndexOf("/");
if (tempIndex != -1){
tempCalledURLBase = tempCalledURL.substring(0, tempIndex);
}
}
inResponse.setContentType("text/plain");
PrintWriter out = inResponse.getWriter();
out.println("<?xml version='1.0' encoding=\"UTF-8\" standalone=\"no\" ?>");
out.println("<!DOCTYPE WMT_MS_Capabilities SYSTEM \""+tempCalledURLBase+"/DTD?VERSION="+getVersion()+"\">");
out.println("<WMT_MS_Capabilities version=\""+getVersion()+"\">");
out.println("<Service>");
out.println("\t<Name>OGC:WMS</Name>");
out.println("\t<Title>"+tempService.getServiceTitle()+"</Title>");
out.println("\t<OnlineResource xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:type=\"simple\" xlink:href=\""+tempService.getServiceLink()+"\" />");
out.println("\t<Fees>none</Fees>");
out.println("\t<AccessConstraints>none</AccessConstraints>");
out.println("</Service>");
out.println("<Capability>");
out.println("\t<Request>");
out.println("\t\t<GetCapabilities>");
out.println("\t\t\t<Format>application/vnd.ogc.wms_xml</Format>");
out.println("\t\t\t<DCPType>");
out.println("\t\t\t\t<HTTP>");
out.println("\t\t\t\t\t<Get>");
out.println("\t\t\t\t\t\t<OnlineResource xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:type=\"simple\" xlink:href=\""+inRequest.getCalledURL()+"\"/>");
out.println("\t\t\t\t\t</Get>");
out.println("\t\t\t\t</HTTP>");
out.println("\t\t\t</DCPType>");
out.println("\t\t</GetCapabilities>");
out.println("\t\t<GetMap>");
out.println("\t\t\t<Format>image/jpg</Format>");
out.println("\t\t\t<Format>image/png</Format>");
out.println("\t\t\t<DCPType>");
out.println("\t\t\t\t<HTTP>");
out.println("\t\t\t\t\t<Get>");
out.println("\t\t\t\t\t\t<OnlineResource xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:type=\"simple\" xlink:href=\""+inRequest.getCalledURL()+"\"/>");
out.println("\t\t\t\t\t</Get>");
out.println("\t\t\t\t</HTTP>");
out.println("\t\t\t</DCPType>");
out.println("\t\t</GetMap>");
out.println("\t\t<GetFeatureInfo>");
out.println("\t\t\t<Format>text/plain</Format>");
out.println("\t\t\t<Format>text/html</Format>");
out.println("\t\t\t<DCPType>");
out.println("\t\t\t\t<HTTP>");
out.println("\t\t\t\t\t<Get>");
out.println("\t\t\t\t\t\t<OnlineResource xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:type=\"simple\" xlink:href=\""+inRequest.getCalledURL()+"\"/>");
out.println("\t\t\t\t\t</Get>");
out.println("\t\t\t\t</HTTP>");
out.println("\t\t\t</DCPType>");
out.println("\t\t</GetFeatureInfo>");
out.println("\t</Request>");
out.println("\t<Exception>");
out.println("\t\t<Format>application/vnd.ogc.se_xml</Format>");
out.println("\t</Exception>");
out.println("\t<Layer>");
out.println("\t\t<Title>"+tempService.getServiceTitle()+"</Title>");
out.println("\t\t<SRS>"+tempService.getSRS()+"</SRS>");
// list the layers for this service
LayerDefinition[] tempLayerDefinitions = tempService.getLayerDefinitions();
for (int i=0; i<tempLayerDefinitions.length; i++){
out.println("\t\t<Layer>");
out.println("\t\t\t<Name>"+tempLayerDefinitions[i].getLayerName()+"</Name>");
out.println("\t\t\t<Title>"+tempLayerDefinitions[i].getLayerTitle()+"</Title>");
Envelope tempEnvelope = tempLayerDefinitions[i].getLatLonEnvelope();
out.println("\t\t\t<LatLongBoundingBox minx=\""+tempEnvelope.getMinX()+"\" miny=\""+tempEnvelope.getMinY()+"\" maxx=\""+tempEnvelope.getMaxX()+"\" maxy=\""+tempEnvelope.getMaxY()+"\" />");
// loop through the styles, listing the available ones.
Style[] tempStyles = tempLayerDefinitions[i].getStyles();
for (int j=0; j<tempStyles.length; j++){
out.println("\t\t\t<Style>");
out.println("\t\t\t\t<Name>"+tempStyles[j].getStyleName()+"</Name>");
out.println("\t\t\t\t<Title>"+tempStyles[j].getStyleTitle()+"</Title>");
out.println("\t\t\t</Style>");
}
out.println("\t\t</Layer>");
}
out.println("\t</Layer>");
out.println("</Capability>");
out.println("</WMT_MS_Capabilities>");
}
}