Package org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive

Source Code of org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive.LazyHiveVarcharObjectInspector

/**
* 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.primitive;


import org.apache.hadoop.hive.common.type.HiveVarchar;
import org.apache.hadoop.hive.serde2.io.HiveVarcharWritable;
import org.apache.hadoop.hive.serde2.lazy.LazyHiveVarchar;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.HiveVarcharObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorUtils.PrimitiveTypeEntry;
import org.apache.hadoop.hive.serde2.typeinfo.BaseTypeParams;
import org.apache.hadoop.hive.serde2.typeinfo.VarcharTypeParams;
import org.apache.hadoop.hive.serde2.typeinfo.ParameterizedPrimitiveTypeUtils;

public class LazyHiveVarcharObjectInspector
    extends AbstractPrimitiveLazyObjectInspector<HiveVarcharWritable>
    implements HiveVarcharObjectInspector {

  public LazyHiveVarcharObjectInspector(PrimitiveTypeEntry typeEntry) {
    super(typeEntry);
    if (typeEntry.primitiveCategory != PrimitiveCategory.VARCHAR) {
      throw new RuntimeException(
          "TypeEntry of type varchar expected, got " + typeEntry.primitiveCategory);
    }
  }

  @Override
  public Object copyObject(Object o) {
    if (o == null) {
      return null;
    }

    LazyHiveVarchar ret = new LazyHiveVarchar(this);
    ret.setValue((LazyHiveVarchar) o);
    return ret;
  }

  @Override
  public HiveVarchar getPrimitiveJavaObject(Object o) {
    if (o == null) {
      return null;
    }

    HiveVarchar ret = ((LazyHiveVarchar) o).getWritableObject().getHiveVarchar();
    if (!ParameterizedPrimitiveTypeUtils.doesPrimitiveMatchTypeParams(
        ret, (VarcharTypeParams) typeParams)) {
      HiveVarchar newValue = new HiveVarchar(ret, ((VarcharTypeParams) typeParams).length);
      return newValue;
    }
    return ret;
  }

  public String toString() {
    return getTypeName();
  }
}
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