org.onebusaway.webapp.gwt.where_library.impl.CombinedSearchServiceImpl.java Source code

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Here is the source code for org.onebusaway.webapp.gwt.where_library.impl.CombinedSearchServiceImpl.java

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/**
 * Copyright (C) 2011 Brian Ferris <bdferris@onebusaway.org>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.onebusaway.webapp.gwt.where_library.impl;

import org.onebusaway.geospatial.model.CoordinateBounds;
import org.onebusaway.geospatial.services.SphericalGeometryLibrary;
import org.onebusaway.transit_data.model.SearchQueryBean;
import org.onebusaway.webapp.gwt.where_library.rpc.WebappServiceAsync;
import org.onebusaway.webapp.gwt.where_library.services.CombinedSearchResult;
import org.onebusaway.webapp.gwt.where_library.services.CombinedSearchService;

import com.google.gwt.maps.client.geocode.Geocoder;
import com.google.gwt.maps.client.geom.LatLng;
import com.google.gwt.maps.client.geom.LatLngBounds;
import com.google.gwt.search.client.AddressLookupMode;
import com.google.gwt.search.client.LocalSearch;
import com.google.gwt.user.client.rpc.AsyncCallback;

public class CombinedSearchServiceImpl implements CombinedSearchService {

    private static WebappServiceAsync _service = WebappServiceAsync.SERVICE;

    @Override
    public void search(SearchQueryBean query, int placeTimeoutMillis,
            AsyncCallback<CombinedSearchResult> callback) {

        LatLngBounds originalBounds = getBounds(query.getBounds());
        System.out.println(query.getBounds());
        System.out.println(originalBounds);

        LatLngBounds smallerBounds = null;
        if (originalBounds != null) {
            LatLng center = originalBounds.getCenter();
            CoordinateBounds cb2 = SphericalGeometryLibrary.bounds(center.getLatitude(), center.getLongitude(),
                    4000);
            smallerBounds = getBounds(cb2);
            System.out.println(cb2);
            System.out.println(smallerBounds);
        }

        CombinedSearchHandlerImpl handler = new CombinedSearchHandlerImpl(originalBounds, placeTimeoutMillis,
                callback);

        // Start the route and stop search
        _service.getRoutesAndStops(query, handler);

        // Google Maps Geocoder Search
        Geocoder geocoder = new Geocoder();
        if (smallerBounds != null)
            geocoder.setViewport(smallerBounds);
        geocoder.getLocations(query.getQuery(), handler);

        // Google Local Search
        LocalSearch search = new LocalSearch();
        search.setAddressLookupMode(AddressLookupMode.ENABLED);
        if (!smallerBounds.isEmpty())
            search.setCenterPoint(smallerBounds.getCenter());
        search.addSearchCompleteHandler(handler);
        search.execute(query.getQuery());
    }

    private LatLngBounds getBounds(CoordinateBounds bounds) {

        LatLngBounds b = LatLngBounds.newInstance();

        if (bounds != null) {
            b.extend(LatLng.newInstance(bounds.getMinLat(), bounds.getMinLon()));
            b.extend(LatLng.newInstance(bounds.getMaxLat(), bounds.getMaxLon()));
        }

        return b;
    }
}