fulddaekning/osrm/OSRMHelper.java

package dk.daoas.fulddaekning.osrm;

import java.io.IOException;
import java.util.Collection;
import java.util.Iterator;

import com.google.gson.Gson;

import dk.daoas.fulddaekning.Adresse;
import dk.daoas.fulddaekning.HttpUtil;

public class OSRMHelper {
        
        Gson gson = new Gson();
        
        final String base_url = "http://10.30.2.61:5000";

        public Adresse getNearestViaTable(Adresse a1, Collection<Adresse> haystack) {
                
                Adresse bedsteAdresse = null;
                
                Adresse hayArray[] = new Adresse[ haystack.size() ];
                haystack.toArray(hayArray);
                
                StringBuilder sb = new StringBuilder();
                sb.append(base_url);
                sb.append("/table?loc=").append(a1.latitude).append(",").append(a1.longitude);
                
                for(int i = 0; i<hayArray.length; i++) {
                        Adresse a = hayArray[i];
                        sb.append("&loc=").append( a.latitude ).append(",").append(a.longitude);
                }
                
                try {
                        String txtResponse = HttpUtil.getContentString(sb.toString(), 500, "UTF-8");
                        OSRMDistanceTable table = gson.fromJson(txtResponse, OSRMDistanceTable.class);
                        int bedsteTid = Integer.MAX_VALUE;
                        
                        for (int i = 1; i<table.distance_table.length; i++) {
                                if (table.distance_table[0][i] < bedsteTid) {
                                        bedsteTid = table.distance_table[0][i];
                                        int idx = i-1;
                                        bedsteAdresse = hayArray[idx];
                                }
                        }

                } catch (Exception e) {
                        System.out.println( e.getMessage() );
                        System.exit(1);                 
                }
                
                //return gson.fromJson(txtResponse, OSRMResponse.class);
                
                
                return bedsteAdresse;
        }
        
        /*
         * Denne virker men table opslaget er 10 gange hurtigere
         * 
         */
        @Deprecated
        public Adresse getNearest(Adresse a1, Collection<Adresse> haystack) {
                int bedsteAfstand = 9999999;
                Adresse bedsteAdresse = null;
                
                Iterator<Adresse> it = haystack.iterator();
                while (it.hasNext()) {
                        Adresse a2 = it.next();
                        
                        try {
                                OSRMResponse res = getRoute(a1, a2);
                                
                                
                                if (res.route_summary.total_distance < bedsteAfstand) {
                                        bedsteAfstand = res.route_summary.total_distance;
                                        bedsteAdresse = a2;
                                }
                        } catch (IOException e) {
                                System.out.println( e.getMessage() );
                                System.exit(1);
                        }
        
                }
                
                return bedsteAdresse;
        }
        
        public OSRMResponse getRoute(Adresse a1, Adresse a2) throws IOException {
                
                String loc1 = a1.latitude + "," + a1.longitude;
                String loc2 = a2.latitude + "," + a2.longitude;
                
                String params = "loc=" + loc1 + "&loc=" + loc2 + "&geometry=false&instructions=false&alt=false";
                
                String url = base_url + "/viaroute?" + params;
                
                String txtResponse = HttpUtil.getContentString(url, 500, "UTF-8");
                
                return gson.fromJson(txtResponse, OSRMResponse.class);
        }
}
1	package dk.daoas.fulddaekning.osrm;
2
3	import java.io.IOException;
4	import java.util.Collection;
5	import java.util.Iterator;
6
7	import com.google.gson.Gson;
8
9	import dk.daoas.fulddaekning.Adresse;
10	import dk.daoas.fulddaekning.HttpUtil;
11
12	public class OSRMHelper {
13
14	Gson gson = new Gson();
15
16	final String base_url = "http://10.30.2.61:5000";
17
18	public Adresse getNearestViaTable(Adresse a1, Collection<Adresse> haystack) {
19
20	Adresse bedsteAdresse = null;
21
22	Adresse hayArray[] = new Adresse[ haystack.size() ];
23	haystack.toArray(hayArray);
24
25	StringBuilder sb = new StringBuilder();
26	sb.append(base_url);
27	sb.append("/table?loc=").append(a1.latitude).append(",").append(a1.longitude);
28
29	for(int i = 0; i<hayArray.length; i++) {
30	Adresse a = hayArray[i];
31	sb.append("&loc=").append( a.latitude ).append(",").append(a.longitude);
32	}
33
34	try {
35	String txtResponse = HttpUtil.getContentString(sb.toString(), 500, "UTF-8");
36	OSRMDistanceTable table = gson.fromJson(txtResponse, OSRMDistanceTable.class);
37	int bedsteTid = Integer.MAX_VALUE;
38
39	for (int i = 1; i<table.distance_table.length; i++) {
40	if (table.distance_table[0][i] < bedsteTid) {
41	bedsteTid = table.distance_table[0][i];
42	int idx = i-1;
43	bedsteAdresse = hayArray[idx];
44	}
45	}
46
47	} catch (Exception e) {
48	System.out.println( e.getMessage() );
49	System.exit(1);
50	}
51
52	//return gson.fromJson(txtResponse, OSRMResponse.class);
53
54
55	return bedsteAdresse;
56	}
57
58	/*
59	* Denne virker men table opslaget er 10 gange hurtigere
60	*
61	*/
62	@Deprecated
63	public Adresse getNearest(Adresse a1, Collection<Adresse> haystack) {
64	int bedsteAfstand = 9999999;
65	Adresse bedsteAdresse = null;
66
67	Iterator<Adresse> it = haystack.iterator();
68	while (it.hasNext()) {
69	Adresse a2 = it.next();
70
71	try {
72	OSRMResponse res = getRoute(a1, a2);
73
74
75	if (res.route_summary.total_distance < bedsteAfstand) {
76	bedsteAfstand = res.route_summary.total_distance;
77	bedsteAdresse = a2;
78	}
79	} catch (IOException e) {
80	System.out.println( e.getMessage() );
81	System.exit(1);
82	}
83
84	}
85
86	return bedsteAdresse;
87	}
88
89	public OSRMResponse getRoute(Adresse a1, Adresse a2) throws IOException {
90
91	String loc1 = a1.latitude + "," + a1.longitude;
92	String loc2 = a2.latitude + "," + a2.longitude;
93
94	String params = "loc=" + loc1 + "&loc=" + loc2 + "&geometry=false&instructions=false&alt=false";
95
96	String url = base_url + "/viaroute?" + params;
97
98	String txtResponse = HttpUtil.getContentString(url, 500, "UTF-8");
99
100	return gson.fromJson(txtResponse, OSRMResponse.class);
101	}
102	}