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.utils.batch;
  
  import java.util.Iterator;
  import java.util.concurrent.CopyOnWriteArrayList;
  
  /**
   * Created by sospartan on 8/24/16.
   */
  public class BatchOperationHelper implements Interceptor {
  
  
    private BactchExecutor mExecutor;
    private CopyOnWriteArrayList<Runnable> sRegisterTasks = new CopyOnWriteArrayList<>();
    private boolean isCollecting = false;
  
    public BatchOperationHelper(BactchExecutor executor){
      mExecutor = executor;
      executor.setInterceptor(this);
      isCollecting = true;
    }
  
    @Override
    public boolean take(Runnable runnable) {
      if(isCollecting){
        sRegisterTasks.add(runnable);
        return true;
      }
      return false;
    }
  
    /**
     * Post all tasks to executor. Can only be called once.
     */
    public void flush(){
      isCollecting = false;
      mExecutor.post(new Runnable() {
        @Override
        public void run() {
          Iterator<Runnable> iterator = sRegisterTasks.iterator();
          while(iterator.hasNext()){
            Runnable item = iterator.next();
            item.run();
  //          iterator.remove();
            sRegisterTasks.remove(item);
          }
        }
      });
      mExecutor.setInterceptor(null);
    }
  }
  