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/*
* Copyright (C) 2015 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.settings.applications;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.Log;
import com.android.settings.R;
import com.android.settings.Utils;
import java.util.ArrayList;
public class ProcStatsPackageEntry implements Parcelable {
private static final String TAG = "ProcStatsEntry";
private static boolean DEBUG = ProcessStatsUi.DEBUG;
private static final float ALWAYS_THRESHOLD = .95f;
private static final float SOMETIMES_THRESHOLD = .25f;
final String mPackage;
final ArrayList<ProcStatsEntry> mEntries = new ArrayList<ProcStatsEntry>();
long mBgDuration;
long mAvgBgMem;
long mMaxBgMem;
double mBgWeight;
long mRunDuration;
long mAvgRunMem;
long mMaxRunMem;
double mRunWeight;
public ApplicationInfo mUiTargetApp;
public String mUiLabel;
private long mWindowLength;
public ProcStatsPackageEntry(String pkg, long windowLength) {
mPackage = pkg;
mWindowLength = windowLength;
}
public ProcStatsPackageEntry(Parcel in) {
mPackage = in.readString();
in.readTypedList(mEntries, ProcStatsEntry.CREATOR);
mBgDuration = in.readLong();
mAvgBgMem = in.readLong();
mMaxBgMem = in.readLong();
mBgWeight = in.readDouble();
mRunDuration = in.readLong();
mAvgRunMem = in.readLong();
mMaxRunMem = in.readLong();
mRunWeight = in.readDouble();
}
public CharSequence getRunningFrequency(Context context) {
float amountRunning = mRunDuration / (float) mWindowLength;
return getFrequency(amountRunning, context);
}
public CharSequence getBackgroundFrequency(Context context) {
float amountRunning = mBgDuration / (float) mWindowLength;
return getFrequency(amountRunning, context);
}
public void addEntry(ProcStatsEntry entry) {
mEntries.add(entry);
}
public void updateMetrics() {
mBgDuration = mAvgBgMem = mMaxBgMem = 0;
mBgWeight = 0;
mRunDuration = mAvgRunMem = mMaxRunMem = 0;
mRunWeight = 0;
final int N = mEntries.size();
for (int i=0; i < N; i++) {
ProcStatsEntry entry = mEntries.get(i);
mBgDuration = Math.max(entry.mBgDuration, mBgDuration);
mAvgBgMem += entry.mAvgBgMem;
mBgWeight += entry.mBgWeight;
mRunDuration = Math.max(entry.mRunDuration, mRunDuration);
mAvgRunMem += entry.mAvgRunMem;
mRunWeight += entry.mRunWeight;
// Each entry is generally a process or something similar. Since it is extremely
// unlikely that any apps are going to avoid running processes at the same time
// to avoid memory usage, we will sum the maximum memory usage to create a
// hypothetical worst case scenario of memory.
mMaxBgMem += entry.mMaxBgMem;
mMaxRunMem += entry.mMaxRunMem;
}
mAvgBgMem /= N;
mAvgRunMem /= N;
}
public void retrieveUiData(Context context, PackageManager pm) {
mUiTargetApp = null;
mUiLabel = mPackage;
// Only one app associated with this process.
try {
if ("os".equals(mPackage)) {
mUiTargetApp = pm.getApplicationInfo("android",
PackageManager.MATCH_DISABLED_COMPONENTS |
PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS |
PackageManager.MATCH_ANY_USER);
mUiLabel = context.getString(R.string.process_stats_os_label);
} else {
mUiTargetApp = pm.getApplicationInfo(mPackage,
PackageManager.MATCH_DISABLED_COMPONENTS |
PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS |
PackageManager.MATCH_ANY_USER);
mUiLabel = mUiTargetApp.loadLabel(pm).toString();
}
} catch (PackageManager.NameNotFoundException e) {
Log.d(TAG, "could not find package: " + mPackage);
}
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(mPackage);
dest.writeTypedList(mEntries);
dest.writeLong(mBgDuration);
dest.writeLong(mAvgBgMem);
dest.writeLong(mMaxBgMem);
dest.writeDouble(mBgWeight);
dest.writeLong(mRunDuration);
dest.writeLong(mAvgRunMem);
dest.writeLong(mMaxRunMem);
dest.writeDouble(mRunWeight);
}
public static final Parcelable.Creator<ProcStatsPackageEntry> CREATOR
= new Parcelable.Creator<ProcStatsPackageEntry>() {
public ProcStatsPackageEntry createFromParcel(Parcel in) {
return new ProcStatsPackageEntry(in);
}
public ProcStatsPackageEntry[] newArray(int size) {
return new ProcStatsPackageEntry[size];
}
};
// TODO: Find better place for this.
public static CharSequence getFrequency(float amount, Context context) {
if (amount > ALWAYS_THRESHOLD) {
return context.getString(R.string.always_running,
Utils.formatPercentage((int) (amount * 100)));
} else if (amount > SOMETIMES_THRESHOLD) {
return context.getString(R.string.sometimes_running,
Utils.formatPercentage((int) (amount * 100)));
} else {
return context.getString(R.string.rarely_running,
Utils.formatPercentage((int) (amount * 100)));
}
}
public double getRunWeight() {
return mRunWeight;
}
public double getBgWeight() {
return mBgWeight;
}
public ArrayList<ProcStatsEntry> getEntries() {
return mEntries;
}
}
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