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.asterix.external.operators;
  
  import java.nio.ByteBuffer;
  import java.util.Map;
  
  import org.apache.asterix.active.ActiveManager;
  import org.apache.asterix.active.ActiveRuntimeId;
  import org.apache.asterix.common.api.INcApplicationContext;
  import org.apache.asterix.external.feed.dataflow.FeedRuntimeInputHandler;
  import org.apache.asterix.external.feed.dataflow.SyncFeedRuntimeInputHandler;
  import org.apache.asterix.external.feed.management.FeedConnectionId;
  import org.apache.asterix.external.feed.policy.FeedPolicyAccessor;
  import org.apache.asterix.external.util.FeedUtils.FeedRuntimeType;
  import org.apache.hyracks.api.context.IHyracksTaskContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.dataflow.common.comm.io.FrameTupleAccessor;
  import org.apache.hyracks.dataflow.std.base.AbstractUnaryInputUnaryOutputOperatorNodePushable;
  
  /**
   * The first operator in a collect job in a feed.
   */
  public class FeedCollectOperatorNodePushable extends AbstractUnaryInputUnaryOutputOperatorNodePushable {
  
      private final int partition;
      private final FeedConnectionId connectionId;
      private final FeedPolicyAccessor policyAccessor;
      private final ActiveManager activeManager;
      private final IHyracksTaskContext ctx;
  
      public FeedCollectOperatorNodePushable(IHyracksTaskContext ctx, FeedConnectionId feedConnectionId,
              Map<String, String> feedPolicy, int partition) {
          this.ctx = ctx;
          this.partition = partition;
          this.connectionId = feedConnectionId;
          this.policyAccessor = new FeedPolicyAccessor(feedPolicy);
          this.activeManager = (ActiveManager) ((INcApplicationContext) ctx.getJobletContext().getServiceContext()
                  .getApplicationContext()).getActiveManager();
      }
  
      @Override
      public void initialize() throws HyracksDataException {
          try {
              ActiveRuntimeId runtimeId =
                      new ActiveRuntimeId(connectionId.getFeedId(), FeedRuntimeType.COLLECT.toString(), partition);
              FrameTupleAccessor tAccessor = new FrameTupleAccessor(recordDesc);
              if (policyAccessor.flowControlEnabled()) {
                  writer = new FeedRuntimeInputHandler(ctx, connectionId, runtimeId, writer, policyAccessor, tAccessor,
                          activeManager.getFramePool());
              } else {
                  writer = new SyncFeedRuntimeInputHandler(ctx, writer, tAccessor);
              }
          } catch (Exception e) {
              throw HyracksDataException.create(e);
          }
      }
  
      @Override
      public void open() throws HyracksDataException {
          writer.open();
      }
  
      @Override
      public void nextFrame(ByteBuffer buffer) throws HyracksDataException {
          writer.nextFrame(buffer);
      }
  
      @Override
      public void fail() throws HyracksDataException {
          writer.fail();
      }
  
      @Override
      public void flush() throws HyracksDataException {
          writer.flush();
      }
  
      @Override
      public void close() throws HyracksDataException {
          writer.close();
      }
  }
  