/**
* Licensed 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.io.parquet.serde.primitive;
import org.apache.hadoop.hive.ql.io.parquet.writable.BinaryWritable;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.AbstractPrimitiveJavaObjectInspector;
import org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.SettableStringObjectInspector;
import org.apache.hadoop.io.Text;
import parquet.io.api.Binary;
/**
* The ParquetStringInspector inspects a BinaryWritable to give a Text or String.
*
*/
public class ParquetStringInspector extends AbstractPrimitiveJavaObjectInspector implements SettableStringObjectInspector {
ParquetStringInspector() {
super(TypeInfoFactory.stringTypeInfo);
}
@Override
public Text getPrimitiveWritableObject(final Object o) {
if (o == null) {
return null;
}
if (o instanceof BinaryWritable) {
return new Text(((BinaryWritable) o).getBytes());
}
if (o instanceof Text) {
return (Text) o;
}
if (o instanceof String) {
return new Text((String) o);
}
throw new UnsupportedOperationException("Cannot inspect " + o.getClass().getCanonicalName());
}
@Override
public String getPrimitiveJavaObject(final Object o) {
if (o == null) {
return null;
}
if (o instanceof BinaryWritable) {
return ((BinaryWritable) o).getString();
}
if (o instanceof Text) {
return ((Text) o).toString();
}
if (o instanceof String) {
return (String) o;
}
throw new UnsupportedOperationException("Cannot inspect " + o.getClass().getCanonicalName());
}
@Override
public Object set(final Object o, final Text text) {
return new BinaryWritable(text == null ? null : Binary.fromByteArray(text.getBytes()));
}
@Override
public Object set(final Object o, final String string) {
return new BinaryWritable(string == null ? null : Binary.fromString(string));
}
@Override
public Object create(final Text text) {
if (text == null) {
return null;
}
return text.toString();
}
@Override
public Object create(final String string) {
return string;
}
}