/*
* 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 com.facebook.hiveio.input.parser.array;
import org.apache.hadoop.hive.serde2.SerDeException;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils;
import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.StructField;
import org.apache.hadoop.io.Writable;
import com.facebook.hiveio.input.parser.RecordParser;
import com.facebook.hiveio.record.HiveReadableRecord;
import java.io.IOException;
public class ArrayParser implements RecordParser {
private final ArrayParserData parserData;
private final ArrayRecord record;
public ArrayParser(String[] partitionValues, int numColumns, ArrayParserData parserData) {
this.parserData = parserData;
this.record = new ArrayRecord(numColumns, partitionValues, parserData.hiveTypes);
}
@Override
public HiveReadableRecord createRecord() {
return record;
}
@Override
public HiveReadableRecord parse(Writable value, HiveReadableRecord record)
throws IOException {
ArrayRecord arrayRecord = (ArrayRecord) record;
arrayRecord.reset();
Object rowData;
try {
rowData = parserData.deserializer.deserialize(value);
} catch (SerDeException e) {
throw new IOException(e);
}
for (int i = 0; i < parserData.columnIndexes.length; ++i) {
int columnIndex = parserData.columnIndexes[i];
StructField structField = parserData.structFields[columnIndex];
Object fieldData = parserData.inspector.getStructFieldData(rowData, structField);
if (fieldData == null) {
arrayRecord.setNull(columnIndex, true);
continue;
}
if (arrayRecord.getHiveType(columnIndex).isCollection()) {
ObjectInspector fieldInspector = structField.getFieldObjectInspector();
Object parsed = ObjectInspectorUtils.copyToStandardJavaObject(fieldData, fieldInspector);
arrayRecord.setObject(columnIndex, parsed);
} else {
parsePrimitive(arrayRecord, columnIndex, fieldData);
}
}
return arrayRecord;
}
private void parsePrimitive(ArrayRecord arrayRecord, int columnIndex, Object fieldData) {
PrimitiveObjectInspector fieldInspector = parserData.primitiveInspectors[columnIndex];
Object primitiveData = fieldInspector.getPrimitiveJavaObject(fieldData);
switch (arrayRecord.getNativeType(columnIndex)) {
case BOOLEAN:
arrayRecord.setBoolean(columnIndex, (Boolean) primitiveData);
break;
case LONG:
arrayRecord.setLong(columnIndex, ((Number) primitiveData).longValue());
break;
case DOUBLE:
arrayRecord.setDouble(columnIndex, ((Number) primitiveData).doubleValue());
break;
case STRING:
arrayRecord.setString(columnIndex, (String) primitiveData);
break;
}
}
}