content: /*
   * 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.server.am;
  
  import android.app.IInstrumentationWatcher;
  import android.content.ComponentName;
  import android.os.Bundle;
  import android.os.Process;
  import android.os.RemoteException;
  import android.util.Slog;
  
  import java.util.ArrayList;
  
  public class InstrumentationReporter {
      static final boolean DEBUG = false;
      static final String TAG = ActivityManagerDebugConfig.TAG_AM;
  
      static final int REPORT_TYPE_STATUS = 0;
      static final int REPORT_TYPE_FINISHED = 1;
  
      final Object mLock = new Object();
      ArrayList<Report> mPendingReports;
      Thread mThread;
  
      final class MyThread extends Thread {
          public MyThread() {
              super("InstrumentationReporter");
              if (DEBUG) Slog.d(TAG, "Starting InstrumentationReporter: " + this);
          }
  
          @Override
          public void run() {
              Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
              boolean waited = false;
              while (true) {
                  ArrayList<Report> reports;
                  synchronized (mLock) {
                      reports = mPendingReports;
                      mPendingReports = null;
                      if (reports == null || reports.isEmpty()) {
                          if (!waited) {
                              // Sleep for a little bit, to avoid thrashing through threads.
                              try {
                                  mLock.wait(10000); // 10 seconds
                              } catch (InterruptedException e) {
                              }
                              waited = true;
                              continue;
                          } else {
                              mThread = null;
                              if (DEBUG) Slog.d(TAG, "Exiting InstrumentationReporter: " + this);
                              return;
                          }
                      }
                  }
  
                  waited = false;
  
                  for (int i=0; i<reports.size(); i++) {
                      final Report rep = reports.get(i);
                      try {
                          if (rep.mType == REPORT_TYPE_STATUS) {
                              if (DEBUG) Slog.d(TAG, "Dispatch status to " + rep.mWatcher
                                      + ": " + rep.mName.flattenToShortString()
                                      + " code=" + rep.mResultCode + " result=" + rep.mResults);
                              rep.mWatcher.instrumentationStatus(rep.mName, rep.mResultCode,
                                      rep.mResults);
                          } else {
                              if (DEBUG) Slog.d(TAG, "Dispatch finished to " + rep.mWatcher
                                      + ": " + rep.mName.flattenToShortString()
                                      + " code=" + rep.mResultCode + " result=" + rep.mResults);
                              rep.mWatcher.instrumentationFinished(rep.mName, rep.mResultCode,
                                      rep.mResults);
                          }
                      } catch (RemoteException e) {
                          Slog.i(TAG, "Failure reporting to instrumentation watcher: comp="
                                  + rep.mName + " results=" + rep.mResults);
                      }
                  }
              }
          }
      }
  
      final class Report {
          final int mType;
          final IInstrumentationWatcher mWatcher;
          final ComponentName mName;
          final int mResultCode;
          final Bundle mResults;
  
          Report(int type, IInstrumentationWatcher watcher, ComponentName name, int resultCode,
                  Bundle results) {
              mType = type;
              mWatcher = watcher;
              mName = name;
              mResultCode = resultCode;
              mResults = results;
          }
      }
  
      public void reportStatus(IInstrumentationWatcher watcher, ComponentName name, int resultCode,
              Bundle results) {
          if (DEBUG) Slog.d(TAG, "Report status to " + watcher
                  + ": " + name.flattenToShortString()
                  + " code=" + resultCode + " result=" + results);
          report(new Report(REPORT_TYPE_STATUS, watcher, name, resultCode, results));
      }
  
      public void reportFinished(IInstrumentationWatcher watcher, ComponentName name, int resultCode,
              Bundle results) {
          if (DEBUG) Slog.d(TAG, "Report finished to " + watcher
                  + ": " + name.flattenToShortString()
                  + " code=" + resultCode + " result=" + results);
          report(new Report(REPORT_TYPE_FINISHED, watcher, name, resultCode, results));
      }
  
      private void report(Report report) {
          synchronized (mLock) {
              if (mThread == null) {
                  mThread = new MyThread();
                  mThread.start();
              }
              if (mPendingReports == null) {
                  mPendingReports = new ArrayList<>();
              }
              mPendingReports.add(report);
              mLock.notifyAll();
          }
      }
  }
  