Location.java

/* 
 * Copyright (C) 2007-2008 OpenIntents.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.openintents.provider;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.database.Cursor;
import android.graphics.Point;
import android.net.Uri;
import android.net.Uri.Builder;
import android.provider.BaseColumns;

/**
 * Definition for content provider related to location.
 */
public class Location {

    public static final class Locations implements BaseColumns {
        /**
         * The content:// style URL for this table
         */
        public static final Uri CONTENT_URI = Uri
                .parse("content://org.openintents.locations/locations");

        /**
         * The default sort order for this table
         */
        public static final String DEFAULT_SORT_ORDER = "modified DESC";

        /**
         * The latitude of the location
         * <p/>
         * Type: TEXT
         * </P>
         */
        public static final String LATITUDE = "latitude";

        /**
         * The longitude of the location
         * <p/>
         * Type: TEXT
         * </P>
         */
        public static final String LONGITUDE = "longitude";

        /**
         * The timestamp for when the note was created
         * <p/>
         * Type: INTEGER (long)
         * </P>
         */
        public static final String CREATED_DATE = "created";

        /**
         * The timestamp for when the note was last modified
         * <p/>
         * Type: INTEGER (long)
         * </P>
         */
        public static final String MODIFIED_DATE = "modified";

        /**
         * bundle/extra key for pick action, containing location uri with scheme
         * geo:
         */
        public static final String EXTRA_GEO = "geo";
    }

    public static final class Extras implements BaseColumns {

        public static final String LOCATION_ID = "locationId";
        public static final String KEY = "key";
        public static final String VALUE = "value";

        public static final String URI_PATH_EXTRAS = "extras";
        public static final Uri CONTENT_URI = Uri
                .parse("content://org.openintents.locations/extras");

    }

    private ContentResolver mResolver;

    public Location(ContentResolver resolver) {
        mResolver = resolver;
    }

    public Uri addLocation(android.location.Location location) {
        ContentValues values = new ContentValues(2);
        values.put(Locations.LATITUDE, location.getLatitude());
        values.put(Locations.LONGITUDE, location.getLongitude());
        return mResolver.insert(Locations.CONTENT_URI, values);
    }

    public int deleteLocation(long id) {

        return mResolver.delete(
                ContentUris.withAppendedId(Locations.CONTENT_URI, id), null,
                null);

    }

    public Point getPoint(long id) {
        Point p = null;
        Cursor cursor = mResolver.query(
                ContentUris.withAppendedId(Locations.CONTENT_URI, id),
                new String[]{Locations._ID, Locations.LATITUDE,
                        Locations.LONGITUDE}, null, null,
                Locations.DEFAULT_SORT_ORDER
        );
        if (cursor.moveToNext()) {
            int lat = Double.valueOf(cursor.getDouble(1) * 1E6).intValue();
            int lon = Double.valueOf(cursor.getDouble(2) * 1E6).intValue();
            p = new Point(lat, lon);
        } else {
        }
        cursor.close();
        return p;
    }

    /**
     * @param locationId
     * @return
     * @deprecated !! Warning !! Cursor has to be closed by caller. Alternative
     * API desired.
     */
    public Cursor queryExtras(long locationId) {
        Builder uri = Locations.CONTENT_URI.buildUpon()
                .appendPath(String.valueOf(locationId))
                .appendPath(Extras.URI_PATH_EXTRAS);
        return mResolver.query(uri.build(), new String[]{Extras._ID,
                Extras.KEY, Extras.VALUE}, null, null, Extras.KEY + ","
                + Extras.VALUE);
    }

    public void updateExtras(long locationId, long extrasId,
                             ContentValues values) {

    }

    public int deleteExtra(long extraId) {
        return mResolver.delete(
                ContentUris.withAppendedId(Extras.CONTENT_URI, extraId), null,
                null);

    }

    public Uri addExtra(long locationId) {
        Builder uri = Locations.CONTENT_URI.buildUpon()
                .appendPath(String.valueOf(locationId))
                .appendPath(Extras.URI_PATH_EXTRAS);
        return mResolver.insert(uri.build(), null);

    }
}