/**
* 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.hadoop.hive.ql.parse.spark;
import java.util.Stack;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.hive.ql.exec.FileSinkOperator;
import org.apache.hadoop.hive.ql.lib.Node;
import org.apache.hadoop.hive.ql.lib.NodeProcessor;
import org.apache.hadoop.hive.ql.lib.NodeProcessorCtx;
import org.apache.hadoop.hive.ql.parse.SemanticException;
/**
* FileSinkProcessor handles addition of merge, move and stats tasks for filesinks.
* Cloned from tez's FileSinkProcessor.
*/
public class SparkFileSinkProcessor implements NodeProcessor {
private static final Logger LOGGER = LoggerFactory.getLogger(SparkFileSinkProcessor.class.getName());
/*
* (non-Javadoc)
* we should ideally not modify the tree we traverse.
* However, since we need to walk the tree at any time when we modify the operator,
* we might as well do it here.
*/
@Override
public Object process(Node nd, Stack<Node> stack,
NodeProcessorCtx procCtx, Object... nodeOutputs)
throws SemanticException {
GenSparkProcContext context = (GenSparkProcContext) procCtx;
FileSinkOperator fileSink = (FileSinkOperator) nd;
// just remember it for later processing
context.fileSinkSet.add(fileSink);
return true;
}
}