fr.inria.ucn.collectors.RunningAppsCollector.java Source code

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Here is the source code for fr.inria.ucn.collectors.RunningAppsCollector.java

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/*******************************************************************************
 * Copyright (C) 2014 MUSE team Inria Paris - Rocquencourt
 * 
 * This file is part of UCNDataCollector.
 * 
 * UCNDataCollector is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * UCNDataCollector is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero Public License for more details.
 * 
 * You should have received a copy of the GNU Affero Public License
 * along with UCNDataCollector.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package fr.inria.ucn.collectors;

import java.util.List;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import fr.inria.ucn.Constants;
import fr.inria.ucn.Helpers;

import android.annotation.SuppressLint;
import android.app.ActivityManager;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.util.Log;

/**
 * Records the list of running apps, foreground app, ..
 * 
 * @author Anna-Kaisa Pietilainen <anna-kaisa.pietilainen@inria.fr>
 *
 */
public class RunningAppsCollector implements Collector {

    /* (non-Javadoc)
     * @see fr.inria.ucn.collectors.Collector#run()
     */
    @SuppressLint("NewApi")
    @Override
    public void run(Context c, long ts) {
        try {
            ActivityManager am = (ActivityManager) c.getSystemService(Context.ACTIVITY_SERVICE);
            PackageManager pm = c.getPackageManager();

            JSONObject data = new JSONObject();

            // running tasks
            JSONArray runTaskArray = new JSONArray();
            List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(50);
            boolean first = true;
            for (ActivityManager.RunningTaskInfo info : taskInfo) {
                JSONObject jinfo = new JSONObject();
                jinfo.put("task_id", info.id);
                jinfo.put("task_num_activities", info.numActivities);
                jinfo.put("task_num_running", info.numRunning);

                // is this the foreground process ?
                jinfo.put("task_foreground", first);
                if (first) {
                    first = false;
                }

                if (info.topActivity != null) {
                    jinfo.put("task_top_class_name", info.topActivity.getClassName());
                    jinfo.put("task_top_package_name", info.topActivity.getPackageName());
                    try {
                        // map package name to app label
                        CharSequence appLabel = pm.getApplicationLabel(pm.getApplicationInfo(
                                info.topActivity.getPackageName(), PackageManager.GET_META_DATA));
                        jinfo.put("task_app_label", appLabel.toString());
                    } catch (NameNotFoundException e) {
                    }
                }

                runTaskArray.put(jinfo);
            }
            data.put("runningTasks", runTaskArray);

            // processes
            JSONArray runProcArray = new JSONArray();
            for (ActivityManager.RunningAppProcessInfo pinfo : am.getRunningAppProcesses()) {
                JSONObject jinfo = new JSONObject();
                jinfo.put("proc_uid", pinfo.uid);
                jinfo.put("proc_name", pinfo.processName);
                jinfo.put("proc_packages", Helpers.getPackagesForUid(c, pinfo.uid));
                runProcArray.put(jinfo);
            }
            data.put("runningAppProcesses", runProcArray);

            // done
            Helpers.sendResultObj(c, "running_apps", ts, data);

        } catch (JSONException jex) {
            Log.w(Constants.LOGTAG, "failed to create json obj", jex);
        }
    }
}