| /* |
| * 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.drill.exec.expr.fn.impl; |
| |
| import org.apache.drill.exec.expr.holders.NullableVarBinaryHolder; |
| import org.apache.drill.exec.expr.holders.NullableVarCharHolder; |
| import org.apache.drill.exec.expr.holders.VarBinaryHolder; |
| import org.apache.drill.exec.expr.holders.VarCharHolder; |
| |
| public class VarHelpers { |
| static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(VarHelpers.class); |
| |
| public static final int compare(VarBinaryHolder left, VarCharHolder right) { |
| for (int l = left.start, r = right.start; l < left.end && r < right.end; l++, r++) { |
| byte leftByte = left.buffer.getByte(l); |
| byte rightByte = right.buffer.getByte(r); |
| if (leftByte != rightByte) { |
| return ((leftByte & 0xFF) - (rightByte & 0xFF)) > 0 ? 1 : -1; |
| } |
| } |
| |
| int l = (left.end - left.start) - (right.end - right.start); |
| if (l > 0) { |
| return 1; |
| } else if (l == 0) { |
| return 0; |
| } else { |
| return -1; |
| } |
| |
| } |
| |
| public static final int compare(VarCharHolder left, VarCharHolder right) { |
| for (int l = left.start, r = right.start; l < left.end && r < right.end; l++, r++) { |
| byte leftByte = left.buffer.getByte(l); |
| byte rightByte = right.buffer.getByte(r); |
| if (leftByte != rightByte) { |
| return ((leftByte & 0xFF) - (rightByte & 0xFF)) > 0 ? 1 : -1; |
| } |
| } |
| |
| int l = (left.end - left.start) - (right.end - right.start); |
| if (l > 0) { |
| return 1; |
| } else if (l == 0) { |
| return 0; |
| } else { |
| return -1; |
| } |
| |
| } |
| |
| public static final int compare(NullableVarBinaryHolder left, NullableVarBinaryHolder right) { |
| if (left.isSet == 0) { |
| if (right.isSet == 0) { |
| return 0; |
| } |
| return -1; |
| } else if (right.isSet == 0) { |
| return 1; |
| } |
| |
| for (int l = left.start, r = right.start; l < left.end && r < right.end; l++, r++) { |
| byte leftByte = left.buffer.getByte(l); |
| byte rightByte = right.buffer.getByte(r); |
| if (leftByte != rightByte) { |
| return ((leftByte & 0xFF) - (rightByte & 0xFF)) > 0 ? 1 : -1; |
| } |
| } |
| |
| int l = (left.end - left.start) - (right.end - right.start); |
| if (l > 0) { |
| return 1; |
| } else if (l == 0) { |
| return 0; |
| } else { |
| return -1; |
| } |
| |
| } |
| |
| public static final int compare(NullableVarBinaryHolder left, NullableVarCharHolder right) { |
| if (left.isSet == 0) { |
| if (right.isSet == 0) { |
| return 0; |
| } |
| return -1; |
| } else if (right.isSet == 0) { |
| return 1; |
| } |
| |
| for (int l = left.start, r = right.start; l < left.end && r < right.end; l++, r++) { |
| byte leftByte = left.buffer.getByte(l); |
| byte rightByte = right.buffer.getByte(r); |
| if (leftByte != rightByte) { |
| return ((leftByte & 0xFF) - (rightByte & 0xFF)) > 0 ? 1 : -1; |
| } |
| } |
| |
| int l = (left.end - left.start) - (right.end - right.start); |
| if (l > 0) { |
| return 1; |
| } else if (l == 0) { |
| return 0; |
| } else { |
| return -1; |
| } |
| |
| } |
| |
| public static final int compare(NullableVarCharHolder left, NullableVarCharHolder right) { |
| if (left.isSet == 0) { |
| if (right.isSet == 0) { |
| return 0; |
| } |
| return -1; |
| } else if (right.isSet == 0) { |
| return 1; |
| } |
| |
| for (int l = left.start, r = right.start; l < left.end && r < right.end; l++, r++) { |
| byte leftByte = left.buffer.getByte(l); |
| byte rightByte = right.buffer.getByte(r); |
| if (leftByte != rightByte) { |
| return ((leftByte & 0xFF) - (rightByte & 0xFF)) > 0 ? 1 : -1; |
| } |
| } |
| |
| int l = (left.end - left.start) - (right.end - right.start); |
| if (l > 0) { |
| return 1; |
| } else if (l == 0) { |
| return 0; |
| } else { |
| return -1; |
| } |
| |
| } |
| |
| public static final int compare(VarBinaryHolder left, VarBinaryHolder right) { |
| for (int l = left.start, r = right.start; l < left.end && r < right.end; l++, r++) { |
| byte leftByte = left.buffer.getByte(l); |
| byte rightByte = right.buffer.getByte(r); |
| if (leftByte != rightByte) { |
| return ((leftByte & 0xFF) - (rightByte & 0xFF)) > 0 ? 1 : -1; |
| } |
| } |
| |
| int l = (left.end - left.start) - (right.end - right.start); |
| if (l > 0) { |
| return 1; |
| } else if (l == 0) { |
| return 0; |
| } else { |
| return -1; |
| } |
| |
| } |
| |
| } |