| /* |
| * 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.api.common.typeutils.base; |
| |
| import java.io.IOException; |
| import java.sql.Timestamp; |
| import org.apache.flink.annotation.Internal; |
| import org.apache.flink.core.memory.DataInputView; |
| import org.apache.flink.core.memory.MemorySegment; |
| |
| /** |
| * Comparator for comparing Java SQL Timestamps. |
| */ |
| @Internal |
| public final class SqlTimestampComparator extends BasicTypeComparator<java.util.Date> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public SqlTimestampComparator(boolean ascending) { |
| super(ascending); |
| } |
| |
| @Override |
| public int compareSerialized(DataInputView firstSource, DataInputView secondSource) throws IOException { |
| // compare Date part |
| final int comp = DateComparator.compareSerializedDate(firstSource, secondSource, ascendingComparison); |
| // compare nanos |
| if (comp == 0) { |
| final int i1 = firstSource.readInt(); |
| final int i2 = secondSource.readInt(); |
| final int comp2 = (i1 < i2 ? -1 : (i1 == i2 ? 0 : 1)); |
| return ascendingComparison ? comp2 : -comp2; |
| } |
| return comp; |
| } |
| |
| @Override |
| public boolean supportsNormalizedKey() { |
| return true; |
| } |
| |
| @Override |
| public int getNormalizeKeyLen() { |
| return 12; |
| } |
| |
| @Override |
| public boolean isNormalizedKeyPrefixOnly(int keyBytes) { |
| return keyBytes < 12; |
| } |
| |
| @Override |
| public void putNormalizedKey(java.util.Date record, MemorySegment target, int offset, int numBytes) { |
| // put Date key |
| DateComparator.putNormalizedKeyDate(record, target, offset, numBytes > 8 ? 8 : numBytes); |
| numBytes -= 8; |
| offset += 8; |
| if (numBytes <= 0) { |
| // nothing to do |
| } |
| // put nanos |
| else if (numBytes < 4) { |
| final int nanos = ((Timestamp) record).getNanos(); |
| for (int i = 0; numBytes > 0; numBytes--, i++) { |
| target.put(offset + i, (byte) (nanos >>> ((3-i)<<3))); |
| } |
| } |
| // put nanos with padding |
| else { |
| final int nanos = ((Timestamp) record).getNanos(); |
| target.putIntBigEndian(offset, nanos); |
| for (int i = 4; i < numBytes; i++) { |
| target.put(offset + i, (byte) 0); |
| } |
| } |
| } |
| |
| @Override |
| public SqlTimestampComparator duplicate() { |
| return new SqlTimestampComparator(ascendingComparison); |
| } |
| } |