001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.beans.factory.parsing; 018 019import org.apache.commons.logging.Log; 020import org.apache.commons.logging.LogFactory; 021 022import org.springframework.lang.Nullable; 023 024/** 025 * Simple {@link ProblemReporter} implementation that exhibits fail-fast 026 * behavior when errors are encountered. 027 * 028 * <p>The first error encountered results in a {@link BeanDefinitionParsingException} 029 * being thrown. 030 * 031 * <p>Warnings are written to 032 * {@link #setLogger(org.apache.commons.logging.Log) the log} for this class. 033 * 034 * @author Rob Harrop 035 * @author Juergen Hoeller 036 * @author Rick Evans 037 * @since 2.0 038 */ 039public class FailFastProblemReporter implements ProblemReporter { 040 041 private Log logger = LogFactory.getLog(getClass()); 042 043 044 /** 045 * Set the {@link Log logger} that is to be used to report warnings. 046 * <p>If set to {@code null} then a default {@link Log logger} set to 047 * the name of the instance class will be used. 048 * @param logger the {@link Log logger} that is to be used to report warnings 049 */ 050 public void setLogger(@Nullable Log logger) { 051 this.logger = (logger != null ? logger : LogFactory.getLog(getClass())); 052 } 053 054 055 /** 056 * Throws a {@link BeanDefinitionParsingException} detailing the error 057 * that has occurred. 058 * @param problem the source of the error 059 */ 060 @Override 061 public void fatal(Problem problem) { 062 throw new BeanDefinitionParsingException(problem); 063 } 064 065 /** 066 * Throws a {@link BeanDefinitionParsingException} detailing the error 067 * that has occurred. 068 * @param problem the source of the error 069 */ 070 @Override 071 public void error(Problem problem) { 072 throw new BeanDefinitionParsingException(problem); 073 } 074 075 /** 076 * Writes the supplied {@link Problem} to the {@link Log} at {@code WARN} level. 077 * @param problem the source of the warning 078 */ 079 @Override 080 public void warning(Problem problem) { 081 logger.warn(problem, problem.getRootCause()); 082 } 083 084}