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package dk.daoas.daoadresseservice;
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import java.util.List;
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import com.google.code.geocoder.Geocoder;
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import com.google.code.geocoder.GeocoderRequestBuilder;
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import com.google.code.geocoder.model.GeocodeResponse;
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import com.google.code.geocoder.model.GeocoderAddressComponent;
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import com.google.code.geocoder.model.GeocoderRequest;
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import com.google.code.geocoder.model.GeocoderResult;
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import com.google.code.geocoder.model.GeocoderStatus;
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import com.google.common.util.concurrent.RateLimiter;
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import dk.daoas.daoadresseservice.admin.ServiceConfig;
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import dk.daoas.daoadresseservice.beans.SearchRequest;
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import dk.daoas.daoadresseservice.beans.SearchResult;
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import dk.thoerup.circuitbreaker.CircuitBreaker;
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import dk.thoerup.circuitbreaker.CircuitBreakerManager;
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import dk.thoerup.circuitbreaker.CircuitInvocation;
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public class GoogleStreetnameHelper implements StreetnameHelper {
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ServiceConfig conf;
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RateLimiter limiter;
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public GoogleStreetnameHelper(ServiceConfig conf) {
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this.conf = conf;
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limiter = RateLimiter.create( 10.0 ); //max 10 req /sec
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}
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@Override
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public String proposeStreetName(SearchRequest request, SearchResult result) {
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if (conf.useGoogle == false)
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return null;
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limiter.acquire();
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result.google = true;
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try {
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GoogleInvocation wrapper = new GoogleInvocation( conf, request.postnr, request.vejnavn );
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CircuitBreaker breaker = CircuitBreakerManager.getManager().getCircuitBreaker("google");
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result.googleVej = (String) breaker.invoke(wrapper);
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return result.googleVej;
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} catch (Exception e) {
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System.out.println( "GoogleError: " + e.getClass().getName() +" / "+ e.getMessage() );
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}
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return null;
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}
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static class GoogleInvocation implements CircuitInvocation {
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ServiceConfig conf;
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int postnr;
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String vejnavn;
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public GoogleInvocation(ServiceConfig conf, int postnr, String vejnavn) {
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this.conf = conf;
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this.postnr= postnr;
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this.vejnavn = vejnavn;
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}
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@Override
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public String proceed() throws Exception {
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final Geocoder geocoder;
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if ( conf.googleApiKey != null ) {
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geocoder = new Geocoder(conf.googleApiUser, conf.googleApiKey); //Throws InvalidKeyException
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} else {
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geocoder = new Geocoder();
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}
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//TimingHelper timer = new TimingHelper();
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String search = vejnavn + ", " + postnr + ", Denmark";
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GeocoderRequest geocoderRequest = new GeocoderRequestBuilder().setAddress(search).setLanguage("en").getGeocoderRequest();
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GeocodeResponse geocoderResponse = geocoder.geocode(geocoderRequest);
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//timer.printElapsed("Google elapsed");
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//System.out.println( "Status: >" + geocoderResponse.getStatus() + "<");
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if ( geocoderResponse.getStatus() != GeocoderStatus.OK) {
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if (geocoderResponse.getStatus() == GeocoderStatus.ZERO_RESULTS) {
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return null;
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} else {
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System.out.println("Google responded with " + geocoderResponse.getStatus() );
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//Hvis det er alvorlige fejl skal vi afbryde med exception og trigger circuitbreakeren
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throw new Exception("Google responded with " + geocoderResponse.getStatus() );
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}
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}
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List<GeocoderResult> resList = geocoderResponse.getResults();
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//System.out.println( "Count: " + resList.size() );
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if (resList.size() != 1) {
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return null;
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}
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GeocoderResult res = resList.get(0);
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List<GeocoderAddressComponent> compList = res.getAddressComponents();
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for (GeocoderAddressComponent c : compList) {
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//System.out.println(c);
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if (c.getTypes().contains("route")) {
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return c.getLongName();
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}
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}
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return null;
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}
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}
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}
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