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/*
* Copyright (C) 2016 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.loganalysis.rule;
import com.android.loganalysis.item.BugreportItem;
import com.android.loganalysis.item.LocationDumpsItem;
import com.android.loganalysis.item.LocationDumpsItem.LocationInfoItem;
import java.util.concurrent.TimeUnit;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONException;
import org.json.JSONObject;
/**
* Rules definition for Location usage
*/
public class LocationUsageRule extends AbstractPowerRule {
private static final String LOCATION_USAGE_ANALYSIS = "LOCATION_USAGE_ANALYSIS";
private static final float LOCATION_REQUEST_DURATION_THRESHOLD = 0.1f; // 10%
// GSA requests for location every 285 seconds, anything more frequent is an issue
private static final int LOCATION_INTERVAL_THRESHOLD = 285;
private List<LocationInfoItem> mOffendingLocationRequestList;
private BugreportItem mBugreportItem;
public LocationUsageRule (BugreportItem bugreportItem) {
super(bugreportItem);
mBugreportItem = bugreportItem;
}
@Override
public void applyRule() {
mOffendingLocationRequestList = new ArrayList<LocationInfoItem>();
if (mBugreportItem.getActivityService() == null || getTimeOnBattery() <= 0) {
return;
}
LocationDumpsItem locationDumpsItem = mBugreportItem.getActivityService()
.getLocationDumps();
if (locationDumpsItem == null) {
return;
}
final long locationRequestThresholdMs = (long) (getTimeOnBattery() *
LOCATION_REQUEST_DURATION_THRESHOLD);
for (LocationInfoItem locationClient : locationDumpsItem.getLocationClients()) {
final String priority = locationClient.getPriority();
final int effectiveIntervalSec = locationClient.getEffectiveInterval();
if (effectiveIntervalSec < LOCATION_INTERVAL_THRESHOLD &&
!priority.equals("PRIORITY_NO_POWER") &&
(TimeUnit.MINUTES.toMillis(locationClient.getDuration()) >
locationRequestThresholdMs)) {
mOffendingLocationRequestList.add(locationClient);
}
}
}
@Override
public JSONObject getAnalysis() {
JSONObject locationAnalysis = new JSONObject();
StringBuilder analysis = new StringBuilder();
if (mOffendingLocationRequestList == null || mOffendingLocationRequestList.size() <= 0) {
analysis.append("No apps requested for frequent location updates. ");
} else {
for (LocationInfoItem locationClient : mOffendingLocationRequestList) {
analysis.append(String.format("Package %s is requesting for location "
+"updates every %d secs with priority %s.", locationClient.getPackage(),
locationClient.getEffectiveInterval(), locationClient.getPriority()));
}
}
try {
locationAnalysis.put(LOCATION_USAGE_ANALYSIS, analysis.toString().trim());
} catch (JSONException e) {
// do nothing
}
return locationAnalysis;
}
}
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