org.apache.hadoop.hive.serde2.dynamic_type.DynamicSerDeTypeSet Maven / Gradle / Ivy
/**
* 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.dynamic_type;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import org.apache.hadoop.hive.serde2.SerDeException;
import org.apache.hadoop.hive.serde2.objectinspector.ListObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.protocol.TSet;
import org.apache.thrift.protocol.TType;
/**
* DynamicSerDeTypeSet.
*
*/
public class DynamicSerDeTypeSet extends DynamicSerDeTypeBase {
// production is: set
private static final int FD_TYPE = 0;
public DynamicSerDeTypeSet(int i) {
super(i);
}
public DynamicSerDeTypeSet(thrift_grammar p, int i) {
super(p, i);
}
// returns Set
@Override
public Class getRealType() {
try {
Class c = getElementType().getRealType();
Object o = c.newInstance();
Set l = Collections.singleton(o);
return l.getClass();
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
public DynamicSerDeTypeBase getElementType() {
return ((DynamicSerDeFieldType) jjtGetChild(FD_TYPE)).getMyType();
}
@Override
public String toString() {
return "set<" + getElementType().toString() + ">";
}
@Override
public byte getType() {
return TType.SET;
}
/**
* NOTE: Set is not supported by Hive yet.
*/
@Override
public Object deserialize(Object reuse, TProtocol iprot)
throws SerDeException, TException, IllegalAccessException {
TSet theset = iprot.readSetBegin();
if (theset == null) {
return null;
}
Set