geo.ReverseGeoCode.java Source code

Introduction

Here is the source code for geo.ReverseGeoCode.java

Source

/*
 * Copyright 2007 Yusuke Yamamoto
 *
 * 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 geo;

import twitter4j.*;

/**
 * Given a latitude and a longitude, searches for up to 20 places that can be used as a place_id when updating a status.
 *
 * @author Yusuke Yamamoto - yusuke at mac.com
 */
public final class ReverseGeoCode {
    /**
     * Usage: java twitter4j.examples.geo.ReverseGeoCode [latitude] [longitude]
     *
     * @param args message
     */
    public static void main(String[] args) {
        if (args.length < 2) {
            System.out.println("Usage: java twitter4j.examples.geo.ReverseGeoCode [latitude] [longitude]");
            System.exit(-1);
        }
        try {
            Twitter twitter = new TwitterFactory().getInstance();
            GeoQuery query = new GeoQuery(
                    new GeoLocation(Double.parseDouble(args[0]), Double.parseDouble(args[1])));
            ResponseList<Place> places = twitter.reverseGeoCode(query);
            if (places.size() == 0) {
                System.out.println("No location associated with the specified lat/lang");
            } else {
                for (Place place : places) {
                    System.out.println("id: " + place.getId() + " name: " + place.getFullName());
                    Place[] containedWithinArray = place.getContainedWithIn();
                    if (containedWithinArray != null && containedWithinArray.length != 0) {
                        System.out.println("  contained within:");
                        for (Place containedWithinPlace : containedWithinArray) {
                            System.out.println("  id: " + containedWithinPlace.getId() + " name: "
                                    + containedWithinPlace.getFullName());
                        }
                    }
                }
            }
            System.exit(0);
        } catch (TwitterException te) {
            te.printStackTrace();
            System.out.println("Failed to retrieve places: " + te.getMessage());
            System.exit(-1);
        }
    }
}