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.feed.dataflow;
  
  import java.nio.ByteBuffer;
  
  import org.apache.asterix.common.exceptions.IExceptionHandler;
  import org.apache.asterix.external.util.FeedFrameUtil;
  import org.apache.hyracks.api.context.IHyracksTaskContext;
  import org.apache.hyracks.api.exceptions.ErrorCode;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.dataflow.common.comm.io.FrameTupleAccessor;
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  public class FeedExceptionHandler implements IExceptionHandler {
  
      private static final Logger LOGGER = LogManager.getLogger();
  
      // TODO: Enable logging
      private final IHyracksTaskContext ctx;
      private final FrameTupleAccessor fta;
  
      public FeedExceptionHandler(IHyracksTaskContext ctx, FrameTupleAccessor fta) {
          this.ctx = ctx;
          this.fta = fta;
      }
  
      @Override
      public ByteBuffer handle(HyracksDataException th, ByteBuffer frame) {
          try {
              if (th.matches(ErrorCode.ERROR_PROCESSING_TUPLE)) {
                  // TODO(amoudi): add check for cause. cause should be either cast or duplicate key
                  fta.reset(frame);
                  int tupleIndex = (int) (th.getParams()[0]);
                  try {
                      logExceptionCausingTuple(tupleIndex, th);
                  } catch (Exception ex) {
                      ex.addSuppressed(th);
                      if (LOGGER.isWarnEnabled()) {
                          LOGGER.warn("Unable to log exception causing tuple due to..." + ex.getMessage());
                      }
                  }
                  // TODO: Improve removeBadTuple. Right now, it creates lots of objects
                  return FeedFrameUtil.removeBadTuple(ctx, tupleIndex, fta);
              } else {
                  return null;
              }
          } catch (Exception exception) {
              exception.printStackTrace();
              if (LOGGER.isWarnEnabled()) {
                  LOGGER.warn("Unable to handle exception " + exception.getMessage());
              }
              return null;
          }
      }
  
      // TODO: Fix logging of exceptions
      private void logExceptionCausingTuple(int tupleIndex, Throwable e) throws HyracksDataException {
          LOGGER.log(Level.WARN, e.getMessage(), e);
      }
  }
  