Android Open Source - rain Check Wipers Task

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License

The source code is released under:

Copyright (c) 2012 Ford Motor Company All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are me...

Java Source Code

package com.ford.openxc.rain;
//  www .ja v a  2 s  .c om
import java.util.TimerTask;

import java.io.IOException;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;

import org.apache.http.impl.client.DefaultHttpClient;

import com.openxc.measurements.Latitude;
import com.openxc.measurements.Longitude;
import com.openxc.measurements.UnrecognizedMeasurementTypeException;
import com.openxc.measurements.WindshieldWiperStatus;

import com.openxc.NoValueException;

import com.openxc.VehicleManager;

import android.os.Handler;

import android.util.Log;

import android.widget.TextView;

public class CheckWipersTask extends TimerTask {
    private final String TAG = "CheckWipersTask";
    private final String WUNDERGROUND_URL =
        "http://www.wunderground.com/weatherstation/VehicleWeatherUpdate.php";

    private VehicleManager mVehicle;
    private Handler mHandler;
    private TextView mWiperStatusView;

    public CheckWipersTask(VehicleManager vehicle, Handler handler,
            TextView wiperStatusView) {
        mVehicle = vehicle;
        mHandler = handler;
        mWiperStatusView = wiperStatusView;
    }

    public void run() {
        final Latitude latitude;
        final Longitude longitude;
        final WindshieldWiperStatus wiperStatus;
        try {
            latitude = (Latitude) mVehicle.get(Latitude.class);
            longitude = (Longitude) mVehicle.get(Longitude.class);
            wiperStatus = (WindshieldWiperStatus) mVehicle.get(
                    WindshieldWiperStatus.class);
        } catch(UnrecognizedMeasurementTypeException e) {
            return;
        } catch(NoValueException e) {
            Log.w(TAG, "One or more of the required measurements" +
                    " didn't have a value", e);
            return;
        }

        final boolean wiperStatusValue;
        wiperStatusValue = wiperStatus.getValue().booleanValue();

        mHandler.post(new Runnable() {
            public void run() {
                String wiperText;
                if(wiperStatusValue) {
                    wiperText = "on";
                } else {
                    wiperText = "off";
                }
                mWiperStatusView.setText(wiperText);
            }
        });
        uploadWiperStatus(latitude, longitude, wiperStatus);
    }

    private void uploadWiperStatus(Latitude latitude, Longitude longitude,
            final WindshieldWiperStatus wiperStatus) {
        double latitudeValue;
        double longitudeValue;
        boolean wiperStatusValue;
        latitudeValue = latitude.getValue().doubleValue();
        longitudeValue = longitude.getValue().doubleValue();
        wiperStatusValue = wiperStatus.getValue().booleanValue();

        if(!wiperStatusValue) {
            Log.d(TAG, "Wipers are off -- not uploading");
            return;
        }

        StringBuilder uriBuilder = new StringBuilder(WUNDERGROUND_URL);
        // TODO need to update API to accept boolean instead of speed
        int wiperSpeed = 0;
        if(wiperStatusValue) {
            wiperSpeed = 1;
        }
        uriBuilder.append("?wiperspd=" + wiperSpeed);
        uriBuilder.append("&lat=" + latitudeValue);
        uriBuilder.append("&lon=" + longitudeValue);
        final String finalUri = uriBuilder.toString();

        new Thread(new Runnable() {
            public void run() {
                final HttpClient client = new DefaultHttpClient();
                HttpGet request = new HttpGet(finalUri);
                try {
                    HttpResponse response = client.execute(request);
                    final int statusCode = response.getStatusLine().getStatusCode();
                    if(statusCode != HttpStatus.SC_OK) {
                        Log.w(TAG, "Error " + statusCode +
                            " while uploading wiper status");
                    } else {
                        Log.d(TAG, "Wiper status (" + wiperStatus + ") uploaded " +
                            "successfully");
                    }
                } catch(IOException e) {
                    Log.w(TAG, "Error while uploading wiper status", e);
                }
            }
        }).start();
    }
}

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