001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2012 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * Sonar is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * Sonar is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public 017 * License along with Sonar; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 019 */ 020 package org.sonar.core.config; 021 022 import ch.qos.logback.classic.LoggerContext; 023 import ch.qos.logback.classic.joran.JoranConfigurator; 024 import ch.qos.logback.core.joran.spi.JoranException; 025 import ch.qos.logback.core.util.StatusPrinter; 026 import org.apache.commons.io.FileUtils; 027 import org.apache.commons.io.IOUtils; 028 import org.slf4j.LoggerFactory; 029 030 import java.io.File; 031 import java.io.FileInputStream; 032 import java.io.IOException; 033 import java.io.InputStream; 034 import java.util.Map; 035 036 /** 037 * Configure Logback 038 * 039 * @since 2.12 040 */ 041 public final class Logback { 042 043 private Logback() { 044 // only static methods 045 } 046 047 public static void configure(String classloaderPath, Map<String, String> substitutionVariables) { 048 InputStream input = Logback.class.getResourceAsStream(classloaderPath); 049 if (input == null) { 050 throw new IllegalArgumentException("Logback configuration not found in classloader: " + classloaderPath); 051 } 052 configure(input, substitutionVariables); 053 } 054 055 public static void configure(File logbackFile, Map<String, String> substitutionVariables) { 056 try { 057 FileInputStream input = FileUtils.openInputStream(logbackFile); 058 configure(input, substitutionVariables); 059 } catch (IOException e) { 060 throw new IllegalArgumentException("Fail to load the Logback configuration: " + logbackFile, e); 061 } 062 } 063 064 /** 065 * Note that this method closes the input stream 066 */ 067 private static void configure(InputStream input, Map<String, String> substitutionVariables) { 068 LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); 069 try { 070 JoranConfigurator configurator = new JoranConfigurator(); 071 configurator.setContext(configureContext(lc, substitutionVariables)); 072 configurator.doConfigure(input); 073 } catch (JoranException e) { 074 // StatusPrinter will handle this 075 } finally { 076 IOUtils.closeQuietly(input); 077 } 078 StatusPrinter.printInCaseOfErrorsOrWarnings(lc); 079 } 080 081 private static LoggerContext configureContext(LoggerContext context, Map<String, String> substitutionVariables) { 082 context.reset(); 083 for (Map.Entry<String, String> entry : substitutionVariables.entrySet()) { 084 context.putProperty(entry.getKey(), entry.getValue()); 085 } 086 return context; 087 } 088 }