org.apache.flink.table.runtime.arrow.writers.TimeWriter Maven / Gradle / Ivy
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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.flink.table.runtime.arrow.writers;
import org.apache.flink.annotation.Internal;
import org.apache.flink.table.data.ArrayData;
import org.apache.flink.table.data.RowData;
import org.apache.flink.util.Preconditions;
import org.apache.arrow.vector.BaseFixedWidthVector;
import org.apache.arrow.vector.TimeMicroVector;
import org.apache.arrow.vector.TimeMilliVector;
import org.apache.arrow.vector.TimeNanoVector;
import org.apache.arrow.vector.TimeSecVector;
import org.apache.arrow.vector.ValueVector;
/** {@link ArrowFieldWriter} for Time. */
@Internal
public abstract class TimeWriter extends ArrowFieldWriter {
public static TimeWriter forRow(ValueVector valueVector) {
return new TimeWriterForRow(valueVector);
}
public static TimeWriter forArray(ValueVector valueVector) {
return new TimeWriterForArray(valueVector);
}
// ------------------------------------------------------------------------------------------
private TimeWriter(ValueVector valueVector) {
super(valueVector);
Preconditions.checkState(
valueVector instanceof TimeSecVector
|| valueVector instanceof TimeMilliVector
|| valueVector instanceof TimeMicroVector
|| valueVector instanceof TimeNanoVector);
}
abstract boolean isNullAt(T in, int ordinal);
abstract int readTime(T in, int ordinal);
@Override
public void doWrite(T in, int ordinal) {
ValueVector valueVector = getValueVector();
if (isNullAt(in, ordinal)) {
((BaseFixedWidthVector) valueVector).setNull(getCount());
} else if (valueVector instanceof TimeSecVector) {
((TimeSecVector) valueVector).setSafe(getCount(), readTime(in, ordinal) / 1000);
} else if (valueVector instanceof TimeMilliVector) {
((TimeMilliVector) valueVector).setSafe(getCount(), readTime(in, ordinal));
} else if (valueVector instanceof TimeMicroVector) {
((TimeMicroVector) valueVector).setSafe(getCount(), readTime(in, ordinal) * 1000L);
} else {
((TimeNanoVector) valueVector).setSafe(getCount(), readTime(in, ordinal) * 1000000L);
}
}
// ------------------------------------------------------------------------------------------
/** {@link TimeWriter} for {@link RowData} input. */
public static final class TimeWriterForRow extends TimeWriter {
private TimeWriterForRow(ValueVector valueVector) {
super(valueVector);
}
@Override
boolean isNullAt(RowData in, int ordinal) {
return in.isNullAt(ordinal);
}
@Override
int readTime(RowData in, int ordinal) {
return in.getInt(ordinal);
}
}
/** {@link TimeWriter} for {@link ArrayData} input. */
public static final class TimeWriterForArray extends TimeWriter {
private TimeWriterForArray(ValueVector valueVector) {
super(valueVector);
}
@Override
boolean isNullAt(ArrayData in, int ordinal) {
return in.isNullAt(ordinal);
}
@Override
int readTime(ArrayData in, int ordinal) {
return in.getInt(ordinal);
}
}
}