daoas/daoadresseservice/OSMStreetnameHelper.java

package dk.daoas.daoadresseservice;

import java.net.URLEncoder;

import com.google.gson.Gson;

import com.google.common.util.concurrent.RateLimiter;


import dk.daoas.daoadresseservice.admin.ServiceConfig;
import dk.daoas.daoadresseservice.beans.OSMAddress;
import dk.daoas.daoadresseservice.beans.SearchRequest;
import dk.daoas.daoadresseservice.beans.SearchResult;
import dk.daoas.daoadresseservice.util.HttpUtil;
import dk.thoerup.circuitbreaker.CircuitBreaker;
import dk.thoerup.circuitbreaker.CircuitBreakerManager;
import dk.thoerup.circuitbreaker.CircuitInvocation;

public class OSMStreetnameHelper implements StreetnameHelper {
        
        ServiceConfig conf;
        RateLimiter limiter;
        
        public OSMStreetnameHelper(ServiceConfig conf) {
                this.conf = conf;

                limiter = RateLimiter.create( 10.0 ); //Max 10 requests pr sekund
        }

        @Override
        public String proposeStreetName(SearchRequest request, SearchResult result) {
                if (conf.useOpenStreetMaps == false)
                        return null;
                
                limiter.acquire();

                result.osm = true;
                
                try {

                        OSMInvocation wrapper = new OSMInvocation( conf, request.postnr, request.vejnavn );
                        CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("osm");

                        result.osmVej = (String) breaker.invoke(wrapper);
                        return result.osmVej;
                        
                } catch (Exception e) {
                        System.out.println( "OSMError: " + e.getClass().getName() +" / "+ e.getMessage() );
                }                                                               
                return null;
        }

        static class OSMInvocation implements CircuitInvocation {
                int postnr;
                String vejnavn;
                ServiceConfig conf;
                
                public OSMInvocation(ServiceConfig conf, int postnr, String vejnavn) {
                        this.conf = conf;
                        this.postnr= postnr;
                        this.vejnavn = vejnavn;                 
                }
                
                @Override
                public String proceed() throws Exception {
                        //TimingHelper timer = new TimingHelper();
                        String encVej = URLEncoder.encode(vejnavn, "UTF-8");
                        
                        
                        String url = conf.nominatimBase + "/search?country=DK&street=" + encVej + "&postalcode=" + postnr + "&format=json&addressdetails=1";
                        
                        //String url = "http://nominatim.openstreetmap.org/search?country=DK&street=" + encVej + "&format=json&addressdetails=1";
                        //System.out.println (url);
                        
                        String json = HttpUtil.getContentString(url, conf.osmTimeout);
                        //System.out.println(json);
                        
                        Gson gson = new Gson();
                        OSMAddress adrList[] = gson.fromJson(json, OSMAddress[].class);
                        
                        //timer.printElapsed("OSM elapsed");
                        
                        //System.out.println("Count: " + adrList.length);
                        if (adrList.length != 1)
                                return null;
                                
                        if (adrList[0].address != null) {
                                return adrList[0].address.road;
                        }

                        return null;
                }
        }

        
}
1	package dk.daoas.daoadresseservice;
2
3	import java.net.URLEncoder;
4
5	import com.google.gson.Gson;
6
7	import com.google.common.util.concurrent.RateLimiter;
8
9
10	import dk.daoas.daoadresseservice.admin.ServiceConfig;
11	import dk.daoas.daoadresseservice.beans.OSMAddress;
12	import dk.daoas.daoadresseservice.beans.SearchRequest;
13	import dk.daoas.daoadresseservice.beans.SearchResult;
14	import dk.daoas.daoadresseservice.util.HttpUtil;
15	import dk.thoerup.circuitbreaker.CircuitBreaker;
16	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
17	import dk.thoerup.circuitbreaker.CircuitInvocation;
18
19	public class OSMStreetnameHelper implements StreetnameHelper {
20
21	ServiceConfig conf;
22	RateLimiter limiter;
23
24	public OSMStreetnameHelper(ServiceConfig conf) {
25	this.conf = conf;
26
27	limiter = RateLimiter.create( 10.0 ); //Max 10 requests pr sekund
28	}
29
30	@Override
31	public String proposeStreetName(SearchRequest request, SearchResult result) {
32	if (conf.useOpenStreetMaps == false)
33	return null;
34
35	limiter.acquire();
36
37	result.osm = true;
38
39	try {
40
41	OSMInvocation wrapper = new OSMInvocation( conf, request.postnr, request.vejnavn );
42	CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("osm");
43
44	result.osmVej = (String) breaker.invoke(wrapper);
45	return result.osmVej;
46
47	} catch (Exception e) {
48	System.out.println( "OSMError: " + e.getClass().getName() +" / "+ e.getMessage() );
49	}
50	return null;
51	}
52
53	static class OSMInvocation implements CircuitInvocation {
54	int postnr;
55	String vejnavn;
56	ServiceConfig conf;
57
58	public OSMInvocation(ServiceConfig conf, int postnr, String vejnavn) {
59	this.conf = conf;
60	this.postnr= postnr;
61	this.vejnavn = vejnavn;
62	}
63
64	@Override
65	public String proceed() throws Exception {
66	//TimingHelper timer = new TimingHelper();
67	String encVej = URLEncoder.encode(vejnavn, "UTF-8");
68
69
70	String url = conf.nominatimBase + "/search?country=DK&street=" + encVej + "&postalcode=" + postnr + "&format=json&addressdetails=1";
71
72	//String url = "http://nominatim.openstreetmap.org/search?country=DK&street=" + encVej + "&format=json&addressdetails=1";
73	//System.out.println (url);
74
75	String json = HttpUtil.getContentString(url, conf.osmTimeout);
76	//System.out.println(json);
77
78	Gson gson = new Gson();
79	OSMAddress adrList[] = gson.fromJson(json, OSMAddress[].class);
80
81	//timer.printElapsed("OSM elapsed");
82
83	//System.out.println("Count: " + adrList.length);
84	if (adrList.length != 1)
85	return null;
86
87	if (adrList[0].address != null) {
88	return adrList[0].address.road;
89	}
90
91	return null;
92	}
93	}
94
95
96	}