mirror of
https://codeberg.org/OpenTracksApp/OpenTracks.git
synced 2026-10-03 18:03:06 +02:00
Rebranding to OpenTracks (code).
This commit is contained in:
Dennis Guse
@@ -0,0 +1,613 @@
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/*
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* Copyright 2011 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package de.dennisguse.opentracks.content;
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import android.content.Context;
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import android.database.Cursor;
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import android.location.Location;
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import android.os.Handler;
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import android.os.HandlerThread;
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import android.util.Log;
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import androidx.annotation.VisibleForTesting;
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import de.dennisguse.opentracks.content.ContentProviderUtils.LocationIterator;
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import de.dennisguse.opentracks.util.LocationUtils;
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import de.dennisguse.opentracks.util.PreferencesUtils;
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import de.dennisguse.opentracks.R;
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import java.util.Collections;
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import java.util.EnumSet;
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import java.util.Set;
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/**
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* Track data hub. Receives data from {@link DataSource} and distributes it to
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* {@link TrackDataListener} after some processing.
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*
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* @author Rodrigo Damazio
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*/
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public class TrackDataHub implements DataSourceListener {
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/**
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* Target number of track points displayed by the map overlay. We may display
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* more than this number of points.
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*/
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public static final int TARGET_DISPLAYED_TRACK_POINTS = 5000;
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/**
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* Maximum number of waypoints to displayed.
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*/
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@VisibleForTesting
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static final int MAX_DISPLAYED_WAYPOINTS = 128;
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private static final String TAG = TrackDataHub.class.getSimpleName();
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private final Context context;
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private final TrackDataManager trackDataManager;
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private final ContentProviderUtils contentProviderUtils;
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private final int targetNumPoints;
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private boolean started;
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private HandlerThread handlerThread;
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private Handler handler;
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private DataSource dataSource;
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private DataSourceManager dataSourceManager;
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// Preference values
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private long selectedTrackId;
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private long recordingTrackId;
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private boolean recordingTrackPaused;
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private boolean metricUnits;
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private boolean reportSpeed;
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private int recordingGpsAccuracy;
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private int recordingDistanceInterval;
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// Track points sampling state
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private int numLoadedPoints;
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private long firstSeenLocationId;
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private long lastSeenLocationId;
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/**
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* Constructor.
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*
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* @param context the context
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* @param trackDataManager the track data manager
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* @param contentProviderUtils the content tracks provider utils
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* @param targetNumPoints the target number of points
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*/
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@VisibleForTesting
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TrackDataHub(Context context, TrackDataManager trackDataManager,
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ContentProviderUtils contentProviderUtils, int targetNumPoints) {
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this.context = context;
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this.trackDataManager = trackDataManager;
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this.contentProviderUtils = contentProviderUtils;
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this.targetNumPoints = targetNumPoints;
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resetSamplingState();
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}
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/**
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* Creates a new instance.
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*/
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public synchronized static TrackDataHub newInstance(Context context) {
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return new TrackDataHub(context, new TrackDataManager(), ContentProviderUtils.Factory.get(
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context), TARGET_DISPLAYED_TRACK_POINTS);
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}
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/**
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* Starts.
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*/
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public void start() {
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if (started) {
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Log.i(TAG, "TrackDataHub already started, ignoring start.");
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return;
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}
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started = true;
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handlerThread = new HandlerThread("TrackDataHubHandlerThread");
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handlerThread.start();
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handler = new Handler(handlerThread.getLooper());
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dataSource = newDataSource();
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dataSourceManager = new DataSourceManager(dataSource, this);
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notifyPreferenceChanged(null);
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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if (dataSourceManager != null) {
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dataSourceManager.updateListeners(trackDataManager.getRegisteredTrackDataTypes());
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loadDataForAll();
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}
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}
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});
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}
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/**
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* Stops.
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*/
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public void stop() {
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if (!started) {
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Log.i(TAG, "TrackDataHub not started, ignoring stop.");
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return;
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}
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started = false;
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dataSourceManager.unregisterAllListeners();
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if (handlerThread != null) {
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handlerThread.getLooper().quit();
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handlerThread = null;
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}
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handler = null;
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dataSource = null;
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dataSourceManager = null;
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}
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/**
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* Loads a track.
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*
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* @param trackId the track id
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*/
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public void loadTrack(final long trackId) {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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if (trackId == selectedTrackId) {
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Log.i(TAG, "Not reloading track " + trackId);
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return;
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}
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selectedTrackId = trackId;
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loadDataForAll();
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}
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});
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}
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/**
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* Registers a {@link TrackDataListener}.
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*
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* @param trackDataListener the track data listener
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* @param trackDataTypes the track data types
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*/
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public void registerTrackDataListener(final TrackDataListener trackDataListener, final EnumSet<TrackDataType> trackDataTypes) {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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trackDataManager.registerListener(trackDataListener, trackDataTypes);
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if (dataSourceManager != null) {
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dataSourceManager.updateListeners(trackDataManager.getRegisteredTrackDataTypes());
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loadDataForListener(trackDataListener);
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}
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}
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});
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}
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/**
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* Unregisters a {@link TrackDataListener}.
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*
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* @param trackDataListener the track data listener
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*/
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public void unregisterTrackDataListener(final TrackDataListener trackDataListener) {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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trackDataManager.unregisterListener(trackDataListener);
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if (dataSourceManager != null) {
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dataSourceManager.updateListeners(trackDataManager.getRegisteredTrackDataTypes());
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}
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}
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});
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}
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/**
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* Reloads data for a {@link TrackDataListener}.
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*/
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public void reloadDataForListener(final TrackDataListener trackDataListener) {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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loadDataForListener(trackDataListener);
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}
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});
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}
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/**
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* Returns true if the selected track is recording.
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*/
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public boolean isSelectedTrackRecording() {
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return selectedTrackId == recordingTrackId
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&& recordingTrackId != PreferencesUtils.RECORDING_TRACK_ID_DEFAULT;
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}
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/**
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* Returns true if the selected track is paused.
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*/
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public boolean isSelectedTrackPaused() {
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return selectedTrackId == recordingTrackId && recordingTrackPaused;
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}
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@Override
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public void notifyTracksTableUpdated() {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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notifyTracksTableUpdate(trackDataManager.getListeners(TrackDataType.TRACKS_TABLE));
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}
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});
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}
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@Override
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public void notifyWaypointsTableUpdated() {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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notifyWaypointsTableUpdate(trackDataManager.getListeners(TrackDataType.WAYPOINTS_TABLE));
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}
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});
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}
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@Override
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public void notifyTrackPointsTableUpdated() {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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notifyTrackPointsTableUpdate(
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true, trackDataManager.getListeners(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE),
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trackDataManager.getListeners(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE));
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}
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});
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}
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@Override
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public void notifyPreferenceChanged(final String key) {
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runInHanderThread(new Runnable() {
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@Override
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public void run() {
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if (key == null
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|| key.equals(PreferencesUtils.getKey(context, R.string.recording_track_id_key))) {
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recordingTrackId = PreferencesUtils.getLong(context, R.string.recording_track_id_key);
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}
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if (key == null
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|| key.equals(PreferencesUtils.getKey(context, R.string.recording_track_paused_key))) {
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recordingTrackPaused = PreferencesUtils.getBoolean(
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context, R.string.recording_track_paused_key,
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PreferencesUtils.RECORDING_TRACK_PAUSED_DEFAULT);
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}
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if (key == null
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|| key.equals(PreferencesUtils.getKey(context, R.string.stats_units_key))) {
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metricUnits = PreferencesUtils.isMetricUnits(context);
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if (key != null) {
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for (TrackDataListener trackDataListener :
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trackDataManager.getListeners(TrackDataType.PREFERENCE)) {
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if (trackDataListener.onMetricUnitsChanged(metricUnits)) {
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loadDataForListener(trackDataListener);
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}
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}
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}
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}
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if (key == null
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|| key.equals(PreferencesUtils.getKey(context, R.string.stats_rate_key))) {
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reportSpeed = PreferencesUtils.isReportSpeed(context);
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if (key != null) {
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for (TrackDataListener trackDataListener :
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trackDataManager.getListeners(TrackDataType.PREFERENCE)) {
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if (trackDataListener.onReportSpeedChanged(reportSpeed)) {
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loadDataForListener(trackDataListener);
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}
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}
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}
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}
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if (key == null
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|| key.equals(PreferencesUtils.getKey(context, R.string.recording_gps_accuracy_key))) {
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recordingGpsAccuracy = PreferencesUtils.getInt(context, R.string.recording_gps_accuracy_key,
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PreferencesUtils.RECORDING_GPS_ACCURACY_DEFAULT);
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if (key != null) {
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for (TrackDataListener trackDataListener :
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trackDataManager.getListeners(TrackDataType.PREFERENCE)) {
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if (trackDataListener.onRecordingGpsAccuracy(recordingGpsAccuracy)) {
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loadDataForListener(trackDataListener);
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}
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}
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}
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}
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if (key == null || key.equals(PreferencesUtils.getKey(context, R.string.recording_distance_interval_key))) {
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recordingDistanceInterval = PreferencesUtils.getInt(context, R.string.recording_distance_interval_key, PreferencesUtils.RECORDING_DISTANCE_INTERVAL_DEFAULT);
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if (key != null) {
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for (TrackDataListener trackDataListener : trackDataManager.getListeners(TrackDataType.PREFERENCE)) {
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if (trackDataListener.onRecordingDistanceIntervalChanged(recordingDistanceInterval)) {
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loadDataForListener(trackDataListener);
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}
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}
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}
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}
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}
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});
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}
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/**
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* Loads data for all listeners. To be run in the {@link #handler} thread.
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*/
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private void loadDataForAll() {
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resetSamplingState();
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if (trackDataManager.getNumberOfListeners() == 0) {
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return;
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}
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for (TrackDataListener trackDataListener : trackDataManager.getListeners(TrackDataType.PREFERENCE)) {
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trackDataListener.onMetricUnitsChanged(metricUnits);
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trackDataListener.onReportSpeedChanged(reportSpeed);
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trackDataListener.onRecordingGpsAccuracy(recordingGpsAccuracy);
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trackDataListener.onRecordingDistanceIntervalChanged(recordingDistanceInterval);
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}
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notifyTracksTableUpdate(trackDataManager.getListeners(TrackDataType.TRACKS_TABLE));
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for (TrackDataListener listener : trackDataManager.getListeners(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE)) {
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listener.clearTrackPoints();
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}
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notifyTrackPointsTableUpdate(true,
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trackDataManager.getListeners(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE),
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trackDataManager.getListeners(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE));
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notifyWaypointsTableUpdate(trackDataManager.getListeners(TrackDataType.WAYPOINTS_TABLE));
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}
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/**
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* Loads data for a listener. To be run in the {@link #handler} thread.
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*
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* @param trackDataListener the track data listener.
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*/
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private void loadDataForListener(TrackDataListener trackDataListener) {
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Set<TrackDataListener> trackDataListeners = Collections.singleton(trackDataListener);
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EnumSet<TrackDataType> trackDataTypes = trackDataManager.getTrackDataTypes(trackDataListener);
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||||
if (trackDataTypes.contains(TrackDataType.PREFERENCE)) {
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trackDataListener.onMetricUnitsChanged(metricUnits);
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trackDataListener.onReportSpeedChanged(reportSpeed);
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trackDataListener.onRecordingGpsAccuracy(recordingGpsAccuracy);
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trackDataListener.onRecordingDistanceIntervalChanged(recordingDistanceInterval);
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||||
}
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if (trackDataTypes.contains(TrackDataType.TRACKS_TABLE)) {
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notifyTracksTableUpdate(trackDataListeners);
|
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}
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||||
|
||||
boolean hasSampledIn = trackDataTypes.contains(TrackDataType.SAMPLED_IN_TRACK_POINTS_TABLE);
|
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boolean hasSampledOut = trackDataTypes.contains(TrackDataType.SAMPLED_OUT_TRACK_POINTS_TABLE);
|
||||
if (hasSampledIn || hasSampledOut) {
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trackDataListener.clearTrackPoints();
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boolean isOnlyListener = trackDataManager.getNumberOfListeners() == 1;
|
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if (isOnlyListener) {
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||||
resetSamplingState();
|
||||
}
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Set<TrackDataListener> sampledOutListeners = hasSampledOut ? trackDataListeners
|
||||
: Collections.<TrackDataListener>emptySet();
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||||
notifyTrackPointsTableUpdate(isOnlyListener, trackDataListeners, sampledOutListeners);
|
||||
}
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||||
|
||||
if (trackDataTypes.contains(TrackDataType.WAYPOINTS_TABLE)) {
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||||
notifyWaypointsTableUpdate(trackDataListeners);
|
||||
}
|
||||
}
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||||
|
||||
/**
|
||||
* Notifies track table update. To be run in the {@link #handler} thread.
|
||||
*
|
||||
* @param trackDataListeners the track data listeners to notify
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||||
*/
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||||
private void notifyTracksTableUpdate(Set<TrackDataListener> trackDataListeners) {
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||||
if (trackDataListeners.isEmpty()) {
|
||||
return;
|
||||
}
|
||||
Track track = contentProviderUtils.getTrack(selectedTrackId);
|
||||
for (TrackDataListener trackDataListener : trackDataListeners) {
|
||||
trackDataListener.onTrackUpdated(track);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Notifies waypoint table update. Currently, reloads all the waypoints up to
|
||||
* {@link #MAX_DISPLAYED_WAYPOINTS}. To be run in the {@link #handler}
|
||||
* thread.
|
||||
*
|
||||
* @param trackDataListeners the track data listeners to notify
|
||||
*/
|
||||
private void notifyWaypointsTableUpdate(Set<TrackDataListener> trackDataListeners) {
|
||||
if (trackDataListeners.isEmpty()) {
|
||||
return;
|
||||
}
|
||||
|
||||
for (TrackDataListener trackDataListener : trackDataListeners) {
|
||||
trackDataListener.clearWaypoints();
|
||||
}
|
||||
|
||||
try (Cursor cursor = contentProviderUtils.getWaypointCursor(
|
||||
selectedTrackId, -1L, MAX_DISPLAYED_WAYPOINTS)) {
|
||||
if (cursor != null && cursor.moveToFirst()) {
|
||||
do {
|
||||
Waypoint waypoint = contentProviderUtils.createWaypoint(cursor);
|
||||
if (!LocationUtils.isValidLocation(waypoint.getLocation())) {
|
||||
continue;
|
||||
}
|
||||
for (TrackDataListener trackDataListener : trackDataListeners) {
|
||||
trackDataListener.onNewWaypoint(waypoint);
|
||||
}
|
||||
} while (cursor.moveToNext());
|
||||
}
|
||||
}
|
||||
|
||||
for (TrackDataListener trackDataListener : trackDataListeners) {
|
||||
trackDataListener.onNewWaypointsDone();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Notifies track points table update. To be run in the {@link #handler}
|
||||
* thread.
|
||||
*
|
||||
* @param updateSamplingState true to update the sampling state
|
||||
* @param sampledInListeners the sampled-in listeners
|
||||
* @param sampledOutListeners the sampled-out listeners
|
||||
*/
|
||||
private void notifyTrackPointsTableUpdate(boolean updateSamplingState,
|
||||
Set<TrackDataListener> sampledInListeners, Set<TrackDataListener> sampledOutListeners) {
|
||||
if (sampledInListeners.isEmpty() && sampledOutListeners.isEmpty()) {
|
||||
return;
|
||||
}
|
||||
if (updateSamplingState && numLoadedPoints >= targetNumPoints) {
|
||||
// Reload and resample the track at a lower frequency.
|
||||
Log.i(TAG, "Resampling track after " + numLoadedPoints + " points.");
|
||||
resetSamplingState();
|
||||
for (TrackDataListener listener : sampledInListeners) {
|
||||
listener.clearTrackPoints();
|
||||
}
|
||||
}
|
||||
|
||||
int localNumLoadedPoints = updateSamplingState ? numLoadedPoints : 0;
|
||||
long localFirstSeenLocationId = updateSamplingState ? firstSeenLocationId : -1L;
|
||||
long localLastSeenLocationId = updateSamplingState ? lastSeenLocationId : -1L;
|
||||
long maxPointId = updateSamplingState ? -1L : lastSeenLocationId;
|
||||
|
||||
long lastTrackPointId = contentProviderUtils.getLastTrackPointId(selectedTrackId);
|
||||
int samplingFrequency = -1;
|
||||
boolean includeNextPoint = false;
|
||||
LocationIterator locationIterator = null;
|
||||
|
||||
try {
|
||||
locationIterator = contentProviderUtils.getTrackPointLocationIterator(selectedTrackId,
|
||||
localLastSeenLocationId + 1, false, ContentProviderUtils.DEFAULT_LOCATION_FACTORY);
|
||||
|
||||
while (locationIterator.hasNext()) {
|
||||
Location location = locationIterator.next();
|
||||
long locationId = locationIterator.getLocationId();
|
||||
|
||||
// Stop if past the last wanted point
|
||||
if (maxPointId != -1L && locationId > maxPointId) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (localFirstSeenLocationId == -1) {
|
||||
localFirstSeenLocationId = locationId;
|
||||
}
|
||||
|
||||
if (samplingFrequency == -1) {
|
||||
long numTotalPoints = Math.max(0L, lastTrackPointId - localFirstSeenLocationId);
|
||||
samplingFrequency = 1 + (int) (numTotalPoints / targetNumPoints);
|
||||
}
|
||||
|
||||
if (!LocationUtils.isValidLocation(location)) {
|
||||
// TODO: also include the last valid point before a split
|
||||
for (TrackDataListener trackDataListener : sampledInListeners) {
|
||||
trackDataListener.onSegmentSplit(location);
|
||||
includeNextPoint = true;
|
||||
}
|
||||
} else {
|
||||
// Also include the last point if the selected track is not recording.
|
||||
if (includeNextPoint || (localNumLoadedPoints % samplingFrequency == 0)
|
||||
|| (locationId == lastTrackPointId && !isSelectedTrackRecording())) {
|
||||
includeNextPoint = false;
|
||||
for (TrackDataListener trackDataListener : sampledInListeners) {
|
||||
trackDataListener.onSampledInTrackPoint(location);
|
||||
}
|
||||
} else {
|
||||
for (TrackDataListener trackDataListener : sampledOutListeners) {
|
||||
trackDataListener.onSampledOutTrackPoint(location);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
localNumLoadedPoints++;
|
||||
localLastSeenLocationId = locationId;
|
||||
}
|
||||
} finally {
|
||||
if (locationIterator != null) {
|
||||
locationIterator.close();
|
||||
}
|
||||
}
|
||||
|
||||
if (updateSamplingState) {
|
||||
numLoadedPoints = localNumLoadedPoints;
|
||||
firstSeenLocationId = localFirstSeenLocationId;
|
||||
lastSeenLocationId = localLastSeenLocationId;
|
||||
}
|
||||
|
||||
for (TrackDataListener listener : sampledInListeners) {
|
||||
listener.onNewTrackPointsDone();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Resets the track points sampling states.
|
||||
*/
|
||||
private void resetSamplingState() {
|
||||
numLoadedPoints = 0;
|
||||
firstSeenLocationId = -1L;
|
||||
lastSeenLocationId = -1L;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a {@link DataSource}.
|
||||
*/
|
||||
@VisibleForTesting
|
||||
protected DataSource newDataSource() {
|
||||
return new DataSource(context);
|
||||
}
|
||||
|
||||
/**
|
||||
* Run in the handler thread.
|
||||
*
|
||||
* @param runnable the runnable
|
||||
*/
|
||||
@VisibleForTesting
|
||||
protected void runInHanderThread(Runnable runnable) {
|
||||
if (handler == null) {
|
||||
// Use a Throwable to ensure the stack trace is logged.
|
||||
Log.d(TAG, "handler is null.", new Throwable());
|
||||
return;
|
||||
}
|
||||
handler.post(runnable);
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the value selectedTrackId.
|
||||
*
|
||||
* @return the selectedTrackId
|
||||
*/
|
||||
public long getSelectedTrackId() {
|
||||
return selectedTrackId;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the recordingGpsAccuracy.
|
||||
*/
|
||||
@VisibleForTesting
|
||||
int getRecordingGpsAccuracy() {
|
||||
return recordingGpsAccuracy;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the metricUnits.
|
||||
*
|
||||
* @return the metricUnits
|
||||
*/
|
||||
@VisibleForTesting
|
||||
boolean isMetricUnits() {
|
||||
return metricUnits;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the reportSpeed.
|
||||
*
|
||||
* @return the reportSpeed
|
||||
*/
|
||||
@VisibleForTesting
|
||||
boolean isReportSpeed() {
|
||||
return reportSpeed;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user