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package dk.daoas.fulddaekning.osrm;
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import java.io.IOException;
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import java.util.Collection;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import net.minidev.json.JSONValue;
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import org.apache.http.HttpEntity;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.ClientProtocolException;
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import org.apache.http.client.ResponseHandler;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.util.EntityUtils;
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import com.google.gson.Gson;
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import dk.daoas.fulddaekning.Adresse;
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import dk.daoas.fulddaekning.HttpUtil;
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public class OSRMHelper {
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final static Logger logger = Logger.getLogger( OSRMHelper.class.toString() );
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Gson gson = new Gson();
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//static OSRMBinding binding = null;
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final String host = "127.0.0.1";
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//final String host = "10.30.2.103";
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final int port = 5000;
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final String base_url = "http://" + host + ":" + port;
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public Adresse getNearestTableHttp(Adresse a1, Collection<Adresse> haystack) {
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Adresse bedsteAdresse = null;
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Adresse hayArray[] = new Adresse[ haystack.size() ];
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haystack.toArray(hayArray);
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StringBuilder sb = new StringBuilder();
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sb.append(base_url);
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sb.append("/table?src=").append(a1.latitude).append(",").append(a1.longitude);
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for(int i = 0; i<hayArray.length; i++) {
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Adresse a = hayArray[i];
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sb.append("&dst=").append( a.latitude ).append(",").append(a.longitude);
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}
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try {
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String txtResponse = HttpUtil.getContentString(sb.toString(), 500, "UTF-8");
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//OSRMDistanceTable table = gson.fromJson(txtResponse, OSRMDistanceTable.class);
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OSRMDistanceTable table = JSONValue.parse(txtResponse, OSRMDistanceTable.class);
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if (table.status != 200) {
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logger.info("OSRM failed with message: " + table.status + " / "+ table.status_message);
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return null;
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}
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if ( table.distance_table[0].length != hayArray.length ) {
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logger.log(Level.SEVERE, "Wrong number of results in matrix " + table.distance_table[0].length);
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System.out.println("--------------");
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System.out.println("URL:");
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System.out.println(sb.toString());
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System.out.println("--------------");
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System.out.println("Response:");
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System.out.println(txtResponse);
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System.exit(0);
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}
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int bedsteTid = Integer.MAX_VALUE;
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for (int i = 0; i<table.distance_table[0].length; i++) {
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if (table.distance_table[0][i] < bedsteTid) {
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bedsteTid = table.distance_table[0][i];
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bedsteAdresse = hayArray[i];
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}
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}
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} catch (Exception e) {
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logger.log(Level.SEVERE, "Lookup failed", e);
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System.out.println( sb.toString() );
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System.out.println( a1 );
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System.exit(1);
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}
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//return gson.fromJson(txtResponse, OSRMResponse.class);
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return bedsteAdresse;
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}
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public Adresse getNearestViarouteHttp(Adresse a1, Collection<Adresse> haystack) {
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int bedsteAfstand = Integer.MAX_VALUE;
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Adresse bedsteAdresse = null;
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try (CloseableHttpClient httpclient = HttpClients.createDefault()) {
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String loc1 = a1.latitude + "," + a1.longitude;
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for(Adresse a2: haystack) {
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String loc2 = a2.latitude + "," + a2.longitude;
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String uri = base_url + "/viaroute?loc=" + loc1 + "&loc=" + loc2 + "&geometry=false&instructions=false&alt=false";
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HttpGet httpget = new HttpGet(uri);
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ResponseHandler<String> responseHandler = new ResponseHandler<String>() {
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@Override
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public String handleResponse(final HttpResponse response) throws ClientProtocolException, IOException {
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int status = response.getStatusLine().getStatusCode();
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if (status >= 200 && status < 300) {
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HttpEntity entity = response.getEntity();
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return entity != null ? EntityUtils.toString(entity) : null;
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} else {
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throw new ClientProtocolException("Unexpected response status: " + status);
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}
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}
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};
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String responseBody = httpclient.execute(httpget, responseHandler);
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OSRMResponse res = gson.fromJson(responseBody, OSRMResponse.class);
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if (res.status != 0) {
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System.out.println("OSRM Returned " + res.status + "/" + res.status_message );
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continue;
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}
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if (res.route_summary.total_distance == 0) {
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continue;
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}
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if (res.route_summary.total_distance < bedsteAfstand) {
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bedsteAfstand = res.route_summary.total_distance;
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bedsteAdresse = a2;
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}
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if (bedsteAfstand < 200) { //vejdistance er tæt nok på
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return bedsteAdresse;
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}
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}
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} catch (Exception e) {
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logger.log(Level.SEVERE, "Lookup failed", e);
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}
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return bedsteAdresse;
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}
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}
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