/**
* 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.hadoop.hive.serde2.io;
import junit.framework.Assert;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.ArrayList;
import org.apache.hadoop.hive.common.type.Decimal128;
import org.apache.hadoop.hive.common.type.HiveDecimal;
import org.apache.hive.common.util.Decimal128FastBuffer;
import org.junit.Before;
import org.junit.Test;
/**
* Unit tests for tsting the fast allocation-free conversion
* between HiveDecimalWritable and Decimal128
*/
public class TestHiveDecimalWritable {
private Decimal128FastBuffer scratch;
@Before
public void setUp() throws Exception {
scratch = new Decimal128FastBuffer();
}
private void doTestFastStreamForHiveDecimal(String valueString) {
BigDecimal value = new BigDecimal(valueString);
Decimal128 dec = new Decimal128();
dec.update(value);
HiveDecimalWritable witness = new HiveDecimalWritable();
witness.set(HiveDecimal.create(value));
int bufferUsed = dec.fastSerializeForHiveDecimal(scratch);
HiveDecimalWritable hdw = new HiveDecimalWritable();
hdw.set(scratch.getBytes(bufferUsed), dec.getScale());
HiveDecimal hd = hdw.getHiveDecimal();
BigDecimal readValue = hd.bigDecimalValue();
Assert.assertEquals(value, readValue);
// Now test fastUpdate from the same serialized HiveDecimal
Decimal128 decRead = new Decimal128().fastUpdateFromInternalStorage(
witness.getInternalStorage(), (short) witness.getScale());
Assert.assertEquals(dec, decRead);
// Test fastUpdate from it's own (not fully compacted) serialized output
Decimal128 decReadSelf = new Decimal128().fastUpdateFromInternalStorage(
hdw.getInternalStorage(), (short) hdw.getScale());
Assert.assertEquals(dec, decReadSelf);
}
@Test
public void testFastStreamForHiveDecimal() {
doTestFastStreamForHiveDecimal("0");
doTestFastStreamForHiveDecimal("-0");
doTestFastStreamForHiveDecimal("1");
doTestFastStreamForHiveDecimal("-1");
doTestFastStreamForHiveDecimal("2");
doTestFastStreamForHiveDecimal("-2");
doTestFastStreamForHiveDecimal("127");
doTestFastStreamForHiveDecimal("-127");
doTestFastStreamForHiveDecimal("128");
doTestFastStreamForHiveDecimal("-128");
doTestFastStreamForHiveDecimal("255");
doTestFastStreamForHiveDecimal("-255");
doTestFastStreamForHiveDecimal("256");
doTestFastStreamForHiveDecimal("-256");
doTestFastStreamForHiveDecimal("65535");
doTestFastStreamForHiveDecimal("-65535");
doTestFastStreamForHiveDecimal("65536");
doTestFastStreamForHiveDecimal("-65536");
doTestFastStreamForHiveDecimal("10");
doTestFastStreamForHiveDecimal("1000");
doTestFastStreamForHiveDecimal("1000000");
doTestFastStreamForHiveDecimal("1000000000");
doTestFastStreamForHiveDecimal("1000000000000");
doTestFastStreamForHiveDecimal("1000000000000000");
doTestFastStreamForHiveDecimal("1000000000000000000");
doTestFastStreamForHiveDecimal("1000000000000000000000");
doTestFastStreamForHiveDecimal("1000000000000000000000000");
doTestFastStreamForHiveDecimal("1000000000000000000000000000");
doTestFastStreamForHiveDecimal("1000000000000000000000000000000");
doTestFastStreamForHiveDecimal("-10");
doTestFastStreamForHiveDecimal("-1000");
doTestFastStreamForHiveDecimal("-1000000");
doTestFastStreamForHiveDecimal("-1000000000");
doTestFastStreamForHiveDecimal("-1000000000000");
doTestFastStreamForHiveDecimal("-1000000000000000000");
doTestFastStreamForHiveDecimal("-1000000000000000000000");
doTestFastStreamForHiveDecimal("-1000000000000000000000000");
doTestFastStreamForHiveDecimal("-1000000000000000000000000000");
doTestFastStreamForHiveDecimal("-1000000000000000000000000000000");
doTestFastStreamForHiveDecimal("0.01");
doTestFastStreamForHiveDecimal("-0.01");
doTestFastStreamForHiveDecimal("0.02");
doTestFastStreamForHiveDecimal("-0.02");
doTestFastStreamForHiveDecimal("0.0127");
doTestFastStreamForHiveDecimal("-0.0127");
doTestFastStreamForHiveDecimal("0.0128");
doTestFastStreamForHiveDecimal("-0.0128");
doTestFastStreamForHiveDecimal("0.0255");
doTestFastStreamForHiveDecimal("-0.0255");
doTestFastStreamForHiveDecimal("0.0256");
doTestFastStreamForHiveDecimal("-0.0256");
doTestFastStreamForHiveDecimal("0.065535");
doTestFastStreamForHiveDecimal("-0.065535");
doTestFastStreamForHiveDecimal("0.065536");
doTestFastStreamForHiveDecimal("-0.065536");
doTestFastStreamForHiveDecimal("0.101");
doTestFastStreamForHiveDecimal("0.10001");
doTestFastStreamForHiveDecimal("0.10000001");
doTestFastStreamForHiveDecimal("0.10000000001");
doTestFastStreamForHiveDecimal("0.10000000000001");
doTestFastStreamForHiveDecimal("0.10000000000000001");
doTestFastStreamForHiveDecimal("0.10000000000000000001");
doTestFastStreamForHiveDecimal("0.10000000000000000000001");
doTestFastStreamForHiveDecimal("0.10000000000000000000000001");
doTestFastStreamForHiveDecimal("0.10000000000000000000000000001");
doTestFastStreamForHiveDecimal("0.10000000000000000000000000000001");
doTestFastStreamForHiveDecimal("-0.101");
doTestFastStreamForHiveDecimal("-0.10001");
doTestFastStreamForHiveDecimal("-0.10000001");
doTestFastStreamForHiveDecimal("-0.10000000001");
doTestFastStreamForHiveDecimal("-0.10000000000001");
doTestFastStreamForHiveDecimal("-0.10000000000000000001");
doTestFastStreamForHiveDecimal("-0.10000000000000000000001");
doTestFastStreamForHiveDecimal("-0.10000000000000000000000001");
doTestFastStreamForHiveDecimal("-0.10000000000000000000000000001");
doTestFastStreamForHiveDecimal("-0.10000000000000000000000000000001");
doTestFastStreamForHiveDecimal(Integer.toString(Integer.MAX_VALUE));
doTestFastStreamForHiveDecimal(Integer.toString(Integer.MIN_VALUE));
doTestFastStreamForHiveDecimal(Long.toString(Long.MAX_VALUE));
doTestFastStreamForHiveDecimal(Long.toString(Long.MIN_VALUE));
doTestFastStreamForHiveDecimal(Decimal128.MAX_VALUE.toFormalString());
doTestFastStreamForHiveDecimal(Decimal128.MIN_VALUE.toFormalString());
// Test known serialization tricky values
int[] values = new int[] {
0x80,
0x8000,
0x800000,
0x80000000,
0x81,
0x8001,
0x800001,
0x80000001,
0x7f,
0x7fff,
0x7fffff,
0x7fffffff,
0xff,
0xffff,
0xffffff,
0xffffffff};
for(int value: values) {
for (int i = 0; i < 4; ++i) {
int[] pos = new int[] {1, 0, 0, 0, 0};
int[] neg = new int[] {0xff, 0, 0, 0, 0};
pos[i+1] = neg[i+1] = value;
doTestDecimalWithBoundsCheck(new Decimal128().update32(pos, 0));
doTestDecimalWithBoundsCheck(new Decimal128().update32(neg, 0));
doTestDecimalWithBoundsCheck(new Decimal128().update64(pos, 0));
doTestDecimalWithBoundsCheck(new Decimal128().update64(neg, 0));
doTestDecimalWithBoundsCheck(new Decimal128().update96(pos, 0));
doTestDecimalWithBoundsCheck(new Decimal128().update96(neg, 0));
doTestDecimalWithBoundsCheck(new Decimal128().update128(pos, 0));
doTestDecimalWithBoundsCheck(new Decimal128().update128(neg, 0));
}
}
}
void doTestDecimalWithBoundsCheck(Decimal128 value) {
if ((value.compareTo(Decimal128.MAX_VALUE)) > 0 ||
(value.compareTo(Decimal128.MIN_VALUE)) < 0) {
// Ignore this one, out of bounds and HiveDecimal will NPE
return;
}
doTestFastStreamForHiveDecimal(value.toFormalString());
}
@Test
public void testHive6594() {
String[] vs = new String[] {
"-4033.445769230769",
"6984454.211097692"};
Decimal128 d = new Decimal128(0L, (short) 14);
for (String s:vs) {
Decimal128 p = new Decimal128(s, (short) 14);
d.addDestructive(p, (short) (short) 14);
}
int bufferUsed = d.fastSerializeForHiveDecimal(scratch);
HiveDecimalWritable hdw = new HiveDecimalWritable();
hdw.set(scratch.getBytes(bufferUsed), d.getScale());
HiveDecimal hd = hdw.getHiveDecimal();
BigDecimal readValue = hd.bigDecimalValue();
Assert.assertEquals(d.toBigDecimal().stripTrailingZeros(),
readValue.stripTrailingZeros());
}
}