| /* |
| * 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; |
| |
| import org.apache.drill.exec.expr.DrillSimpleFunc; |
| import org.apache.drill.exec.expr.annotations.FunctionTemplate; |
| import org.apache.drill.exec.expr.annotations.FunctionTemplate.FunctionScope; |
| import org.apache.drill.exec.expr.annotations.Output; |
| import org.apache.drill.exec.expr.annotations.Param; |
| import org.apache.drill.exec.expr.holders.BigIntHolder; |
| import org.apache.drill.exec.expr.holders.VarCharHolder; |
| |
| public class ExceptionFunction { |
| |
| public static final String EXCEPTION_FUNCTION_NAME = "__throwException"; |
| |
| @FunctionTemplate(name = EXCEPTION_FUNCTION_NAME, isRandom = true, |
| scope = FunctionScope.SIMPLE, nulls = FunctionTemplate.NullHandling.NULL_IF_NULL) |
| public static class ThrowException implements DrillSimpleFunc { |
| |
| @Param VarCharHolder message; |
| @Output BigIntHolder out; |
| |
| public void setup() { |
| } |
| |
| public void eval() { |
| String msg = org.apache.drill.exec.expr.fn.impl.StringFunctionHelpers.toStringFromUTF8(message.start, message.end, message.buffer); |
| org.apache.drill.exec.expr.fn.ExceptionFunction.throwException(msg); |
| } |
| } |
| |
| public static void throwException(String message) { |
| throw new org.apache.drill.common.exceptions.DrillRuntimeException(message); |
| } |
| } |