content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.weex.tracing;
  
  import android.os.Looper;
  import android.util.SparseArray;
  
  import org.apache.weex.WXEnvironment;
  import org.apache.weex.WXSDKManager;
  import org.apache.weex.adapter.ITracingAdapter;
  import org.apache.weex.utils.WXLogUtils;
  
  import java.util.Map;
  import java.util.concurrent.atomic.AtomicInteger;
  
  /**
   * Created by moxun on 2017/6/6.
   */
  
  public class WXTracing {
    private static final AtomicInteger sIdGenerator = new AtomicInteger(0);
  
    public static int nextId() {
      return sIdGenerator.getAndIncrement();
    }
  
    public static boolean isAvailable() {
      return WXEnvironment.isApkDebugable();
    }
  
    public static synchronized void submit(TraceEvent event) {
      ITracingAdapter tracingAdapter = WXSDKManager.getInstance().getTracingAdapter();
      if (tracingAdapter != null) {
        tracingAdapter.submitTracingEvent(event);
      }
    }
  
    public static class TraceEvent {
      public String fname;
      public String tname;
      public String ph;
      public int traceId;
      public long ts;
      public String iid;
      public String ref;
      public String parentRef;
      public String name;
      public String classname;
      public int parentId = -1;
      public double duration;
  
      /**
       * Internal use
       */
      public SparseArray<TraceEvent> subEvents;
      public String payload;
      public double parseJsonTime;
      public boolean isSegment;
      public Map<String, Object> extParams;
      public boolean firstScreenFinish;
  
      private boolean submitted;
  
      public TraceEvent() {
        ts = System.currentTimeMillis();
        traceId = nextId();
        tname = currentThreadName();
      }
  
      public void submit() {
        if (!submitted) {
          submitted = true;
          WXTracing.submit(this);
        } else {
          WXLogUtils.w("WXTracing", "Event " + traceId + " has been submitted.");
        }
      }
    }
  
    public static String currentThreadName() {
      Thread thread = Thread.currentThread();
      String name = thread.getName();
  
      if ("WeexJSBridgeThread".equals(name)) {
        return "JSThread";
      } else if ("WeeXDomThread".equals(name)) {
        return "DOMThread";
      } else if (Looper.getMainLooper() == Looper.myLooper()) {
        return "UIThread";
      }
  
      return name;
    }
  
    public static TraceEvent newEvent(String fname, String instanceId, int parentId) {
      WXTracing.TraceEvent traceEvent = new TraceEvent();
      traceEvent.fname = fname;
      traceEvent.iid = instanceId;
      traceEvent.traceId = WXTracing.nextId();
      traceEvent.parentId = parentId;
      return traceEvent;
    }
  
    public static class TraceInfo {
      public int rootEventId;
      public long domQueueTime;
      public long uiQueueTime;
      public long domThreadStart = -1;
      public long domThreadNanos;
      public long uiThreadStart = -1;
      public long uiThreadNanos;
    }
  }
  