/**
* Copyright 2008-2016 Qualogy Solutions B.V.
*
* 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 com.qualogy.qafe.gwt.client.component.html5.geo;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Logger;
import com.google.code.gwt.geolocation.client.Coordinates;
import com.google.code.gwt.geolocation.client.Geolocation;
import com.google.code.gwt.geolocation.client.Position;
import com.google.code.gwt.geolocation.client.PositionCallback;
import com.google.code.gwt.geolocation.client.PositionError;
import com.google.gwt.user.client.Timer;
import com.qualogy.qafe.gwt.client.context.ClientApplicationContext;
import com.qualogy.qafe.gwt.client.vo.data.EventDataGVO;
public class GeolocationUtil {
public final static String LATITUDE = "lat";
public final static String LONGITUDE = "lon";
public final static String ACCURACY = "accuracy";
public final static String ALTITUDE = "alt";
public final static String ALTITUDE_ACCURACY = "alt-accuracy";
public final static String HEADING = "heading";
public final static String SPEED = "speed";
public final static double NO_VALUE = -1.0;
public static final String TIMESTAMP = "timestamp";
private static GeolocationUtil instance = new GeolocationUtil();
private Geolocation geo = null;
private boolean isSupported = false;
private boolean isInitialized = false;
private PositionCallback myCallback = null;
Logger logger = Logger.getLogger("GeoUtil");
private int initialIntervalToRequest = 0;
private int currentIntervalToRequest = 0;
private boolean isEnabledFromConfig = false;
public static GeolocationUtil getInstance() {
return instance;
}
private GeolocationUtil() {
isEnabledFromConfig = Boolean.valueOf(ClientApplicationContext.getInstance().getGlobalConfigurations().get("geo.location.enabled"));
if(isEnabledFromConfig) {
if (!Geolocation.isSupported()) {
log("Obtaining Geolocation FAILED! Geolocation API is not supported.");
} else {
isSupported = true;
}
geo = Geolocation.getGeolocation();
if (geo == null) {
log("Obtaining Geolocation FAILED! Object is null.");
} else {
isInitialized = true;
myCallback = new MyPositionCallback();
getInitialIntervalToRequest();
currentIntervalToRequest=0;
}
obtainPosition(geo);
}
}
private void getInitialIntervalToRequest() {
String initialIntervalFromGlobalConfiguration = ClientApplicationContext.getInstance().getGlobalConfigurations().get("geo.location.request.threshold");
if(initialIntervalFromGlobalConfiguration != null) {
initialIntervalToRequest = Integer.parseInt(ClientApplicationContext.getInstance().getGlobalConfigurations().get("geo.location.request.threshold"));
} else {
initialIntervalToRequest = 0;
}
}
public void obtainPosition() {
obtainPosition(geo);
}
private void obtainPosition(Geolocation geo) {
if (isSupported && isInitialized) {
geo.getCurrentPosition(myCallback);
}
}
private void log(String message) {
logger.info(message);
}
public Map<String, Double> getLocationDataMap() {
return ((MyPositionCallback)myCallback).getLocationDataMap();
}
private class MyPositionCallback implements PositionCallback {
private Map<String, Double> geoLocationMap = new HashMap<String, Double>();
public void onFailure(PositionError error) {
String message = "";
switch (error.getCode()) {
case PositionError.UNKNOWN_ERROR:
message = "Unknown Error";
break;
case PositionError.PERMISSION_DENIED:
message = "Permission Denied";
break;
case PositionError.POSITION_UNAVAILABLE:
message = "Position Unavailable";
break;
case PositionError.TIMEOUT:
message = "Time-out";
break;
default:
message = "Unknown error code.";
}
log("Obtaining position FAILED! Message: '" + error.getMessage()
+ "', code: " + error.getCode() + " (" + message + ")");
}
public void onSuccess(Position position) {
Coordinates c = position.getCoords();
geoLocationMap.put(LATITUDE, c.getLatitude());
geoLocationMap.put(LONGITUDE, c.getLongitude());
geoLocationMap.put(ACCURACY, c.getAccuracy());
geoLocationMap.put(ALTITUDE, c.hasAltitude() ? c.getAltitude()
: NO_VALUE);
geoLocationMap.put(ALTITUDE_ACCURACY,
c.hasAltitudeAccuracy() ? c.getAltitudeAccuracy()
: NO_VALUE);
geoLocationMap.put(HEADING, c.hasHeading() ? c.getHeading()
: NO_VALUE);
geoLocationMap.put(SPEED, c.hasSpeed() ? c.getSpeed() : NO_VALUE);
log("In OnSuccess:" + geoLocationMap.toString());
}
public Map<String, Double> getLocationDataMap() {
return geoLocationMap;
}
}
public static EventDataGVO addLocationData(final EventDataGVO eventDataObject) {
if (instance !=null && instance.isEnabledFromConfig){
if (instance.currentIntervalToRequest % instance.initialIntervalToRequest ==0 ) {
instance.obtainPosition();
instance.currentIntervalToRequest++;
eventDataObject.setLocationDataMap(instance.getLocationDataMap());
Timer timer = new Timer(){
@Override
public void run() {
eventDataObject.setLocationDataMap(instance.getLocationDataMap());
}
};
timer.schedule(250);
} else {
instance.currentIntervalToRequest++;
eventDataObject.setLocationDataMap(instance.getLocationDataMap());
}
}
return eventDataObject;
}
}