com.dwdesign.tweetings.model.ParcelableLocation.java Source code

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Here is the source code for com.dwdesign.tweetings.model.ParcelableLocation.java

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/*
 *            Tweetings - Twitter client for Android
 * 
 * Copyright (C) 2012-2013 RBD Solutions Limited <apps@tweetings.net>
 * Copyright (C) 2012 Mariotaku Lee <mariotaku.lee@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.dwdesign.tweetings.model;

import static com.dwdesign.tweetings.util.Utils.parseDouble;

import java.io.Serializable;

import twitter4j.GeoLocation;
import android.location.Location;
import android.os.Parcel;
import android.os.Parcelable;

public class ParcelableLocation implements Serializable, Parcelable {

    private static final long serialVersionUID = -1690848439775407442L;

    public final double latitude, longitude;

    public static final Parcelable.Creator<ParcelableLocation> CREATOR = new Parcelable.Creator<ParcelableLocation>() {
        @Override
        public ParcelableLocation createFromParcel(final Parcel in) {
            return new ParcelableLocation(in);
        }

        @Override
        public ParcelableLocation[] newArray(final int size) {
            return new ParcelableLocation[size];
        }
    };

    public ParcelableLocation(final double latitude, final double longitude) {
        this.latitude = latitude;
        this.longitude = longitude;
    }

    public ParcelableLocation(final GeoLocation location) {
        latitude = location != null ? location.getLatitude() : -1;
        longitude = location != null ? location.getLongitude() : -1;
    }

    public ParcelableLocation(final Location location) {
        latitude = location != null ? location.getLatitude() : -1;
        longitude = location != null ? location.getLongitude() : -1;
    }

    public ParcelableLocation(final Parcel in) {
        latitude = in.readDouble();
        longitude = in.readDouble();
    }

    public ParcelableLocation(final String location_string) {
        if (location_string == null) {
            latitude = -1;
            longitude = -1;
            return;
        }
        final String[] longlat = location_string.split(",");
        if (longlat == null || longlat.length != 2) {
            latitude = -1;
            longitude = -1;
        } else {
            latitude = parseDouble(longlat[0]);
            longitude = parseDouble(longlat[1]);
        }
    }

    @Override
    public int describeContents() {
        return hashCode();
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (!(obj instanceof ParcelableLocation))
            return false;
        final ParcelableLocation other = (ParcelableLocation) obj;
        if (Double.doubleToLongBits(latitude) != Double.doubleToLongBits(other.latitude))
            return false;
        if (Double.doubleToLongBits(longitude) != Double.doubleToLongBits(other.longitude))
            return false;
        return true;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        long temp;
        temp = Double.doubleToLongBits(latitude);
        result = prime * result + (int) (temp ^ temp >>> 32);
        temp = Double.doubleToLongBits(longitude);
        result = prime * result + (int) (temp ^ temp >>> 32);
        return result;
    }

    public boolean isValid() {
        return latitude >= 0 || longitude >= 0;
    }

    public GeoLocation toGeoLocation() {
        return isValid() ? new GeoLocation(latitude, longitude) : null;
    }

    @Override
    public String toString() {
        return "ParcelableLocation{latitude=" + latitude + ", longitude=" + longitude + "}";
    }

    @Override
    public void writeToParcel(final Parcel out, final int flags) {
        out.writeDouble(latitude);
        out.writeDouble(longitude);
    }

    public static ParcelableLocation fromString(final String string) {
        final ParcelableLocation location = new ParcelableLocation(string);
        if (ParcelableLocation.isValidLocation(location))
            return location;
        return null;
    }

    public static boolean isValidLocation(final ParcelableLocation location) {
        return location != null && location.isValid();
    }

    public static GeoLocation toGeoLocation(final ParcelableLocation location) {
        return isValidLocation(location) ? location.toGeoLocation() : null;
    }

    public static String toString(final ParcelableLocation location) {
        if (location == null)
            return null;
        return location.latitude + "," + location.longitude;
    }
}