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/**
* 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.serde2.lazy.objectinspector;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.io.Text;
/**
* ObjectInspectorFactory is the primary way to create new ObjectInspector
* instances.
*
* SerDe classes should call the static functions in this library to create an
* ObjectInspector to return to the caller of SerDe2.getObjectInspector().
*
* The reason of having caches here is that ObjectInspectors do not have an
* internal state - so ObjectInspectors with the same construction parameters
* should result in exactly the same ObjectInspector.
*/
public final class LazyObjectInspectorFactory {
static ConcurrentHashMap, LazySimpleStructObjectInspector> cachedLazySimpleStructObjectInspector =
new ConcurrentHashMap, LazySimpleStructObjectInspector>();
public static LazySimpleStructObjectInspector getLazySimpleStructObjectInspector(
List structFieldNames,
List structFieldObjectInspectors, byte separator,
Text nullSequence, boolean lastColumnTakesRest, boolean escaped,
byte escapeChar) {
return getLazySimpleStructObjectInspector(structFieldNames,
structFieldObjectInspectors, null, separator, nullSequence,
lastColumnTakesRest, escaped, escapeChar);
}
public static LazySimpleStructObjectInspector getLazySimpleStructObjectInspector(
List structFieldNames,
List structFieldObjectInspectors, List structFieldComments,
byte separator, Text nullSequence, boolean lastColumnTakesRest,
boolean escaped,byte escapeChar) {
ArrayList