| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * 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.android.cts.verifier.location; |
| |
| import android.location.Location; |
| import android.location.LocationListener; |
| import android.location.LocationManager; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.SystemClock; |
| |
| public class LocationVerifier implements LocationListener, Handler.Callback { |
| public static final String TAG = "CtsVerifierLocation"; |
| |
| private static final int MSG_TIMEOUT = 1; |
| |
| private final LocationManager mLocationManager; |
| private final PassFailLog mCb; |
| private final String mProvider; |
| private final long mInterval; |
| private final long mMinInterval; |
| private final long mMaxInterval; |
| private final Handler mHandler; |
| private final int mRequestedUpdates; |
| |
| private long mLastTimestamp = -1; |
| private int mNumUpdates = 0; |
| private boolean mRunning = false; |
| |
| public LocationVerifier(PassFailLog cb, LocationManager locationManager, |
| String provider, long requestedInterval, int numUpdates) { |
| mProvider = provider; |
| mInterval = requestedInterval; |
| // Updates can be up to 100ms fast |
| mMinInterval = Math.max(0, requestedInterval - 100); |
| // timeout at 60 seconds |
| mMaxInterval = requestedInterval + 60 * 1000; |
| mRequestedUpdates = numUpdates; |
| mLocationManager = locationManager; |
| mCb = cb; |
| mHandler = new Handler(this); |
| } |
| |
| public void start() { |
| mCb.log("enabling " + mProvider + " for " + mInterval + "ms updates"); |
| mRunning = true; |
| expectNextUpdate(mMaxInterval); |
| mLastTimestamp = SystemClock.elapsedRealtime(); |
| mLocationManager.requestLocationUpdates(mProvider, mInterval, 0, |
| LocationVerifier.this); |
| } |
| |
| public void stop() { |
| mRunning = false; |
| mLocationManager.removeUpdates(LocationVerifier.this); |
| mHandler.removeMessages(MSG_TIMEOUT); |
| } |
| |
| private void pass() { |
| stop(); |
| mCb.log("disabling " + mProvider); |
| mCb.pass(); |
| } |
| |
| private void fail(String s) { |
| stop(); |
| mCb.log("disabling"); |
| mCb.fail(s); |
| } |
| |
| private void expectNextUpdate(long timeout) { |
| mHandler.removeMessages(MSG_TIMEOUT); |
| mHandler.sendMessageDelayed(mHandler.obtainMessage(MSG_TIMEOUT), timeout); |
| } |
| |
| @Override |
| public boolean handleMessage(Message msg) { |
| if (!mRunning) return true; |
| fail("timeout (" + mMaxInterval + "ms) waiting for " + |
| mProvider + " location change"); |
| return true; |
| } |
| |
| @Override |
| public void onLocationChanged(Location location) { |
| if (!mRunning) return; |
| |
| mNumUpdates++; |
| expectNextUpdate(mMaxInterval); |
| |
| long timestamp = SystemClock.elapsedRealtime(); |
| long delta = timestamp - mLastTimestamp; |
| mLastTimestamp = timestamp; |
| |
| if (delta > mMaxInterval) { |
| fail(mProvider + " location changed too slow: " + delta + "ms > " + |
| mMaxInterval + "ms"); |
| return; |
| } else if (mNumUpdates == 1) { |
| mCb.log("received " + mProvider + " location (1st update, " + delta + "ms)"); |
| } else if (delta < mMinInterval) { |
| fail(mProvider + " location updated too fast: " + delta + "ms < " + |
| mMinInterval + "ms"); |
| return; |
| } else { |
| mCb.log("received " + mProvider + " location (" + delta + "ms)"); |
| } |
| |
| if (!mProvider.equals(location.getProvider())) { |
| fail("wrong provider in callback, actual: " + location.getProvider() + |
| " expected: " + mProvider); |
| return; |
| } |
| |
| if (mNumUpdates >= mRequestedUpdates) { |
| pass(); |
| } |
| } |
| |
| @Override |
| public void onStatusChanged(String provider, int status, Bundle extras) { } |
| |
| @Override |
| public void onProviderEnabled(String provider) { } |
| |
| @Override |
| public void onProviderDisabled(String provider) { } |
| } |