| /* |
| * 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.phoenix.schema; |
| |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.phoenix.expression.LiteralExpression; |
| import org.apache.phoenix.hbase.index.util.ImmutableBytesPtr; |
| import org.apache.phoenix.schema.types.PChar; |
| import org.apache.phoenix.schema.types.PDataType; |
| import org.junit.Test; |
| |
| public class PCharPadTest { |
| |
| public void test(String value, PDataType dataType, int length, SortOrder sortOrder, byte[] result) throws SQLException { |
| LiteralExpression expr = LiteralExpression.newConstant(value, dataType, sortOrder); |
| ImmutableBytesPtr ptr = new ImmutableBytesPtr(expr.getBytes()); |
| dataType.pad(ptr, length, sortOrder); |
| String resultValue = (String) dataType.toObject(ptr, dataType, sortOrder); |
| assertTrue(Arrays.equals(result, ptr.get())); |
| assertEquals(value, resultValue); |
| } |
| |
| @Test |
| public void testCharPaddingAsc1() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "hellow"; |
| byte[] result = new byte[]{104, 101, 108, 108, 111, 119, 32, 32, 32, 32}; |
| test(str, dataType, 10, SortOrder.ASC, result); |
| } |
| |
| @Test |
| public void testCharPaddingAsc2() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "phoenix"; |
| byte[] result = new byte[]{112, 104, 111, 101, 110, 105, 120, 32, 32, 32, 32, 32, 32, 32}; |
| test(str, dataType, 14, SortOrder.ASC, result); |
| } |
| |
| @Test |
| public void testCharPaddingAsc3() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "phoenix"; |
| byte[] result = new byte[]{112, 104, 111, 101, 110, 105, 120}; |
| test(str, dataType, 7, SortOrder.ASC, result); |
| } |
| |
| @Test |
| public void testCharPaddingAsc4() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "hello world"; |
| byte[] result = new byte[]{104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100, 32, 32, 32, 32, 32}; |
| test(str, dataType, 16, SortOrder.ASC, result); |
| } |
| |
| @Test |
| public void testCharPaddingDesc1() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "hellow"; |
| byte[] result = new byte[]{-105, -102, -109, -109, -112, -120, -33, -33, -33, -33}; |
| test(str, dataType, 10, SortOrder.DESC, result); |
| } |
| |
| @Test |
| public void testCharPaddingDesc2() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "phoenix"; |
| byte[] result = new byte[]{-113, -105, -112, -102, -111, -106, -121, -33, -33, -33, -33, -33, -33, -33, -33}; |
| test(str, dataType, 15, SortOrder.DESC, result); |
| } |
| |
| @Test |
| public void testCharPaddingDesc3() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "phoenix"; |
| byte[] result = new byte[]{-113, -105, -112, -102, -111, -106, -121}; |
| test(str, dataType, 7, SortOrder.DESC, result); |
| } |
| |
| @Test |
| public void testCharPaddingDesc4() throws SQLException { |
| PDataType dataType = PChar.INSTANCE; |
| String str = "hello world"; |
| byte[] result = new byte[]{-105, -102, -109, -109, -112, -33, -120, -112, -115, -109, -101, -33, -33, -33, -33, -33}; |
| test(str, dataType, 16, SortOrder.DESC, result); |
| } |
| |
| @Test |
| public void testRelativeByteArrayOrder() throws SQLException { |
| String[] inputs = {"foo", "foo!", "fooA", "foo~"}; |
| PDataType dataType = PChar.INSTANCE; |
| Arrays.sort(inputs); |
| List<byte[]> ascOrderedInputs = new ArrayList<>(inputs.length); |
| SortOrder sortOrder = SortOrder.ASC; |
| for (String input : inputs) { |
| LiteralExpression expr = LiteralExpression.newConstant(input, dataType, sortOrder); |
| ImmutableBytesPtr ptr = new ImmutableBytesPtr(expr.getBytes()); |
| dataType.pad(ptr, 8, sortOrder); |
| ascOrderedInputs.add(ptr.copyBytes()); |
| } |
| Collections.sort(ascOrderedInputs, Bytes.BYTES_COMPARATOR); |
| for (int i = 0; i < inputs.length; i++) { |
| byte[] bytes = ascOrderedInputs.get(i); |
| String resultValue = (String) dataType.toObject(bytes, 0, bytes.length, dataType, sortOrder); |
| assertEquals(inputs[i], resultValue); |
| } |
| |
| List<byte[]> descOrderedInputs = new ArrayList<>(inputs.length); |
| sortOrder = SortOrder.DESC; |
| for (String input : inputs) { |
| LiteralExpression expr = LiteralExpression.newConstant(input, dataType, sortOrder); |
| ImmutableBytesPtr ptr = new ImmutableBytesPtr(expr.getBytes()); |
| dataType.pad(ptr, 8, sortOrder); |
| descOrderedInputs.add(ptr.copyBytes()); |
| } |
| Collections.sort(descOrderedInputs, Bytes.BYTES_COMPARATOR); |
| for (int i = 0; i < inputs.length; i++) { |
| byte[] bytes = descOrderedInputs.get(i); |
| String resultValue = (String) dataType.toObject(bytes, 0, bytes.length, dataType, sortOrder); |
| assertEquals(inputs[inputs.length - 1 - i], resultValue); |
| } |
| } |
| } |