272 lines
10 KiB
C++
272 lines
10 KiB
C++
/*
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open source routing machine
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Copyright (C) Dennis Luxen, others 2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU AFFERO General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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any later version.
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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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You should have received a copy of the GNU Affero General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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or see http://www.gnu.org/licenses/agpl.txt.
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*/
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#ifndef VIAROUTEPLUGIN_H_
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#define VIAROUTEPLUGIN_H_
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#include <cstdlib>
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#include <fstream>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "ObjectForPluginStruct.h"
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#include "BaseDescriptor.h"
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#include "BasePlugin.h"
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#include "RouteParameters.h"
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#include "GPXDescriptor.h"
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#include "KMLDescriptor.h"
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#include "JSONDescriptor.h"
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#include "../DataStructures/HashTable.h"
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#include "../DataStructures/StaticGraph.h"
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#include "../DataStructures/SearchEngine.h"
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#include "../Util/StringUtil.h"
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class ViaRoutePlugin : public BasePlugin {
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private:
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NodeInformationHelpDesk * nodeHelpDesk;
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std::vector<std::string> * names;
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StaticGraph<EdgeData> * graph;
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HashTable<std::string, unsigned> descriptorTable;
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std::string pluginDescriptorString;
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SearchEngine<EdgeData, StaticGraph<EdgeData> > * searchEngine;
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public:
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ViaRoutePlugin(ObjectsForQueryStruct * objects, std::string psd = "viaroute") : pluginDescriptorString(psd) {
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nodeHelpDesk = objects->nodeHelpDesk;
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graph = objects->graph;
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names = objects->names;
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searchEngine = new SearchEngine<EdgeData, StaticGraph<EdgeData> >(graph, nodeHelpDesk, names);
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descriptorTable.Set("", 0); //default descriptor
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descriptorTable.Set("kml", 0);
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descriptorTable.Set("json", 1);
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descriptorTable.Set("gpx", 2);
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}
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virtual ~ViaRoutePlugin() {
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DELETE( searchEngine );
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}
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std::string GetDescriptor() { return pluginDescriptorString; }
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std::string GetVersionString() { return std::string("0.3 (DL)"); }
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void HandleRequest(RouteParameters routeParameters, http::Reply& reply) {
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//check number of parameters
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if(0 == routeParameters.options["start"].size() || 0 == routeParameters.options["dest"].size() ) {
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reply = http::Reply::stockReply(http::Reply::badRequest);
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return;
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}
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//Get start and end Coordinate
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std::string start = routeParameters.options["start"];
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std::string dest = routeParameters.options["dest"];
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std::vector<std::string> textCoord = split (start, ',');
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int lat1 = static_cast<int>(100000.*atof(textCoord[0].c_str()));
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int lon1 = static_cast<int>(100000.*atof(textCoord[1].c_str()));
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textCoord = split (dest, ',');
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int lat2 = static_cast<int>(100000.*atof(textCoord[0].c_str()));
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int lon2 = static_cast<int>(100000.*atof(textCoord[1].c_str()));
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_Coordinate startCoord(lat1, lon1);
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_Coordinate targetCoord(lat2, lon2);
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RawRouteData rawRoute;
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if(false == checkCoord(startCoord) || false == checkCoord(targetCoord)) {
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reply = http::Reply::stockReply(http::Reply::badRequest);
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return;
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}
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rawRoute.rawViaNodeCoordinates.push_back(startCoord);
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// std::cout << "[debug] number of vianodes: " << routeParameters.viaPoints.size() << std::endl;
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for(unsigned i = 0; i < routeParameters.viaPoints.size(); i++) {
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textCoord = split (routeParameters.viaPoints[i], ',');
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if(textCoord.size() != 2) {
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reply = http::Reply::stockReply(http::Reply::badRequest);
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return;
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}
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int vialat = static_cast<int>(100000.*atof(textCoord[0].c_str()));
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int vialon = static_cast<int>(100000.*atof(textCoord[1].c_str()));
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// std::cout << "[debug] via" << i << ": " << vialat << "," << vialon << std::endl;
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_Coordinate viaCoord(vialat, vialon);
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if(false == checkCoord(viaCoord)) {
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reply = http::Reply::stockReply(http::Reply::badRequest);
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return;
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}
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rawRoute.rawViaNodeCoordinates.push_back(viaCoord);
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}
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rawRoute.rawViaNodeCoordinates.push_back(targetCoord);
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vector<PhantomNode> phantomNodeVector(rawRoute.rawViaNodeCoordinates.size());
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bool errorOccurredFlag = false;
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for(unsigned i = 0; i < rawRoute.rawViaNodeCoordinates.size(); i++) {
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searchEngine->FindPhantomNodeForCoordinate( rawRoute.rawViaNodeCoordinates[i], phantomNodeVector[i]);
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if(!rawRoute.rawViaNodeCoordinates[i].isSet()) {
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errorOccurredFlag = true;
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}
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}
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rawRoute.Resize();
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unsigned distance = 0;
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for(unsigned i = 0; i < phantomNodeVector.size()-1 && !errorOccurredFlag; i++) {
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PhantomNodes segmentPhantomNodes;
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segmentPhantomNodes.startPhantom = phantomNodeVector[i];
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segmentPhantomNodes.targetPhantom = phantomNodeVector[i+1];
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std::vector< _PathData > path;
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unsigned distanceOfSegment = searchEngine->ComputeRoute(segmentPhantomNodes, path);
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if(UINT_MAX == distanceOfSegment ) {
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errorOccurredFlag = true;
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// cout << "Error occurred, path not found" << endl;
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distance = UINT_MAX;
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break;
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} else {
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distance += distanceOfSegment;
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}
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//put segments at correct position of routes raw data
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rawRoute.segmentEndCoordinates[i] = (segmentPhantomNodes);
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rawRoute.routeSegments[i] = path;
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}
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reply.status = http::Reply::ok;
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BaseDescriptor<SearchEngine<EdgeData, StaticGraph<EdgeData> > > * desc;
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std::string JSONParameter = routeParameters.options.Find("jsonp");
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if("" != JSONParameter) {
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reply.content += JSONParameter;
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reply.content += "(\n";
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}
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_DescriptorConfig descriptorConfig;
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unsigned descriptorType = descriptorTable[routeParameters.options.Find("output")];
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unsigned short zoom = 18;
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if(routeParameters.options.Find("z") != ""){
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zoom = atoi(routeParameters.options.Find("z").c_str());
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if(18 < zoom)
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zoom = 18;
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}
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descriptorConfig.z = zoom;
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if(routeParameters.options.Find("instructions") == "false") {
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descriptorConfig.instructions = false;
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}
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if(routeParameters.options.Find("geometry") == "false" ) {
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descriptorConfig.geometry = false;
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}
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if("cmp" == routeParameters.options.Find("geomformat") || "cmp6" == routeParameters.options.Find("geomformat") ) {
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descriptorConfig.encodeGeometry = true;
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}
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switch(descriptorType){
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case 0:
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desc = new KMLDescriptor<SearchEngine<EdgeData, StaticGraph<EdgeData> > >();
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break;
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case 1:
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desc = new JSONDescriptor<SearchEngine<EdgeData, StaticGraph<EdgeData> > >();
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break;
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case 2:
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desc = new GPXDescriptor<SearchEngine<EdgeData, StaticGraph<EdgeData> > >();
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break;
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default:
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desc = new KMLDescriptor<SearchEngine<EdgeData, StaticGraph<EdgeData> > >();
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break;
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}
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PhantomNodes phantomNodes;
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phantomNodes.startPhantom = rawRoute.segmentEndCoordinates[0].startPhantom;
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phantomNodes.targetPhantom = rawRoute.segmentEndCoordinates[rawRoute.segmentEndCoordinates.size()-1].targetPhantom;
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desc->SetConfig(descriptorConfig);
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desc->Run(reply, rawRoute, phantomNodes, *searchEngine, distance);
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if("" != JSONParameter) {
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reply.content += ")\n";
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}
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reply.headers.resize(3);
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reply.headers[0].name = "Content-Length";
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std::string tmp;
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intToString(reply.content.size(), tmp);
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reply.headers[0].value = tmp;
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switch(descriptorType){
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case 0:
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reply.headers[1].name = "Content-Type";
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reply.headers[1].value = "application/vnd.google-earth.kml+xml; charset=UTF-8";
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reply.headers[2].name = "Content-Disposition";
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reply.headers[2].value = "attachment; filename=\"route.kml\"";
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break;
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case 1:
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if("" != JSONParameter){
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reply.headers[1].name = "Content-Type";
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reply.headers[1].value = "text/javascript";
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reply.headers[2].name = "Content-Disposition";
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reply.headers[2].value = "attachment; filename=\"route.js\"";
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} else {
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reply.headers[1].name = "Content-Type";
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reply.headers[1].value = "application/x-javascript";
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reply.headers[2].name = "Content-Disposition";
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reply.headers[2].value = "attachment; filename=\"route.json\"";
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}
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break;
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case 2:
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reply.headers[1].name = "Content-Type";
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reply.headers[1].value = "application/gpx+xml; charset=UTF-8";
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reply.headers[2].name = "Content-Disposition";
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reply.headers[2].value = "attachment; filename=\"route.gpx\"";
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break;
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default:
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reply.headers[1].name = "Content-Type";
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reply.headers[1].value = "application/vnd.google-earth.kml+xml; charset=UTF-8";
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reply.headers[2].name = "Content-Disposition";
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reply.headers[2].value = "attachment; filename=\"route.kml\"";
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break;
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}
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DELETE( desc );
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return;
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}
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private:
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inline bool checkCoord(const _Coordinate & c) {
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if(c.lat > 90*100000 || c.lat < -90*100000 || c.lon > 180*100000 || c.lon <-180*100000) {
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return false;
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}
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return true;
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}
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};
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#endif /* VIAROUTEPLUGIN_H_ */
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