org.apache.hadoop.hive.ql.io.parquet.timestamp.NanoTime Maven / Gradle / Ivy
/**
* 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.timestamp;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import parquet.Preconditions;
import parquet.io.api.Binary;
import parquet.io.api.RecordConsumer;
/**
* Provides a wrapper representing a parquet-timestamp, with methods to
* convert to and from binary.
*/
public class NanoTime {
private final int julianDay;
private final long timeOfDayNanos;
public static NanoTime fromBinary(Binary bytes) {
Preconditions.checkArgument(bytes.length() == 12, "Must be 12 bytes");
ByteBuffer buf = bytes.toByteBuffer();
buf.order(ByteOrder.LITTLE_ENDIAN);
long timeOfDayNanos = buf.getLong();
int julianDay = buf.getInt();
return new NanoTime(julianDay, timeOfDayNanos);
}
public NanoTime(int julianDay, long timeOfDayNanos) {
this.julianDay = julianDay;
this.timeOfDayNanos = timeOfDayNanos;
}
public int getJulianDay() {
return julianDay;
}
public long getTimeOfDayNanos() {
return timeOfDayNanos;
}
public Binary toBinary() {
ByteBuffer buf = ByteBuffer.allocate(12);
buf.order(ByteOrder.LITTLE_ENDIAN);
buf.putLong(timeOfDayNanos);
buf.putInt(julianDay);
buf.flip();
return Binary.fromByteBuffer(buf);
}
public void writeValue(RecordConsumer recordConsumer) {
recordConsumer.addBinary(toBinary());
}
@Override
public String toString() {
return "NanoTime{julianDay="+julianDay+", timeOfDayNanos="+timeOfDayNanos+"}";
}
}