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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.Iterator;
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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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Gson gson = new Gson();
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final String base_url = "http://10.30.2.61:5000";
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public Adresse getNearestViaTable(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?loc=").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("&loc=").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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int bedsteTid = Integer.MAX_VALUE;
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for (int i = 1; i<table.distance_table.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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int idx = i-1;
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bedsteAdresse = hayArray[idx];
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}
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}
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} catch (Exception e) {
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System.out.println( e.getMessage() );
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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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/*
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* Denne virker men table opslaget er 10 gange hurtigere
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*
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*/
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@Deprecated
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public Adresse getNearest(Adresse a1, Collection<Adresse> haystack) {
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int bedsteAfstand = 9999999;
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Adresse bedsteAdresse = null;
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Iterator<Adresse> it = haystack.iterator();
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while (it.hasNext()) {
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Adresse a2 = it.next();
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try {
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OSRMResponse res = getRoute(a1, a2);
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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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} catch (IOException e) {
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System.out.println( e.getMessage() );
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System.exit(1);
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}
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}
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return bedsteAdresse;
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}
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public OSRMResponse getRoute(Adresse a1, Adresse a2) throws IOException {
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String loc1 = a1.latitude + "," + a1.longitude;
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String loc2 = a2.latitude + "," + a2.longitude;
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String params = "loc=" + loc1 + "&loc=" + loc2 + "&geometry=false&instructions=false&alt=false";
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String url = base_url + "/viaroute?" + params;
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String txtResponse = HttpUtil.getContentString(url, 500, "UTF-8");
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return gson.fromJson(txtResponse, OSRMResponse.class);
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}
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}
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