001/* 002 * Copyright 2002-2012 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; 021 022/** 023 * Simple {@link ProblemReporter} implementation that exhibits fail-fast 024 * behavior when errors are encountered. 025 * 026 * <p>The first error encountered results in a {@link BeanDefinitionParsingException} 027 * being thrown. 028 * 029 * <p>Warnings are written to 030 * {@link #setLogger(org.apache.commons.logging.Log) the log} for this class. 031 * 032 * @author Rob Harrop 033 * @author Juergen Hoeller 034 * @author Rick Evans 035 * @since 2.0 036 */ 037public class FailFastProblemReporter implements ProblemReporter { 038 039 private Log logger = LogFactory.getLog(getClass()); 040 041 042 /** 043 * Set the {@link Log logger} that is to be used to report warnings. 044 * <p>If set to {@code null} then a default {@link Log logger} set to 045 * the name of the instance class will be used. 046 * @param logger the {@link Log logger} that is to be used to report warnings 047 */ 048 public void setLogger(Log logger) { 049 this.logger = (logger != null ? logger : LogFactory.getLog(getClass())); 050 } 051 052 053 /** 054 * Throws a {@link BeanDefinitionParsingException} detailing the error 055 * that has occurred. 056 * @param problem the source of the error 057 */ 058 @Override 059 public void fatal(Problem problem) { 060 throw new BeanDefinitionParsingException(problem); 061 } 062 063 /** 064 * Throws a {@link BeanDefinitionParsingException} detailing the error 065 * that has occurred. 066 * @param problem the source of the error 067 */ 068 @Override 069 public void error(Problem problem) { 070 throw new BeanDefinitionParsingException(problem); 071 } 072 073 /** 074 * Writes the supplied {@link Problem} to the {@link Log} at {@code WARN} level. 075 * @param problem the source of the warning 076 */ 077 @Override 078 public void warning(Problem problem) { 079 this.logger.warn(problem, problem.getRootCause()); 080 } 081 082}