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.carbondata.core.scan.result.iterator;
  
  import org.apache.carbondata.common.CarbonIterator;
  import org.apache.carbondata.core.scan.result.RowBatch;
  
  public class PartitionSplitterRawResultIterator extends CarbonIterator<Object[]> {
  
    private CarbonIterator<RowBatch> iterator;
    private RowBatch batch;
    private int counter;
  
    public PartitionSplitterRawResultIterator(CarbonIterator<RowBatch> iterator) {
      this.iterator = iterator;
    }
  
    @Override
    public boolean hasNext() {
      if (null == batch || checkBatchEnd(batch)) {
        if (iterator.hasNext()) {
          batch = iterator.next();
          counter = 0;
        } else {
          return false;
        }
      }
  
      return !checkBatchEnd(batch);
    }
  
    @Override
    public Object[] next() {
      if (batch == null) {
        batch = iterator.next();
      }
      if (!checkBatchEnd(batch)) {
        return batch.getRawRow(counter++);
      } else {
        batch = iterator.next();
        counter = 0;
      }
      return batch.getRawRow(counter++);
    }
  
    /**
     * To check if the batch is processed completely
     * @param batch
     * @return
     */
    private boolean checkBatchEnd(RowBatch batch) {
      return !(counter < batch.getSize());
    }
  
  }
  