/* * 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 com.alipay.sofa.common.log; import com.alipay.sofa.common.utils.StringUtil; import java.util.HashMap; import java.util.Map; import static com.alipay.sofa.common.log.Constants.SOFA_MIDDLEWARE_LOG_INTERNAL_LEVEL; /** * This class used to output log statements from within the sofa-common-tools package. * <p> * And also it is used to output log statements to console appender. * * @author qilong.zql * @since 1.0.15 */ public class LogLog { private static final String DEBUG_PREFIX = "Sofa-Middleware-Log:DEBUG "; private static final String INFO_PREFIX = "Sofa-Middleware-Log:INFO "; private static final String ERR_PREFIX = "Sofa-Middleware-Log:ERROR "; private static final String WARN_PREFIX = "Sofa-Middleware-Log:WARN "; private static final Map<String, Level> LEVELS = new HashMap<String, Level>(); private volatile static Level consoleLogLevel = Level.WARN; static { LEVELS.put("DEBUG", Level.DEBUG); LEVELS.put("INFO", Level.INFO); LEVELS.put("WARN", Level.WARN); LEVELS.put("ERROR", Level.ERROR); } public static void setConsoleLevel(String level) { Level value = LEVELS.get(level.toUpperCase()); if (!StringUtil.isBlank(level) && value != null) { consoleLogLevel = value; } } public static void debug(String msg) { if (isDebug()) { System.out.println(DEBUG_PREFIX + msg); } } public static void info(String msg) { if (isInfo()) { System.out.println(INFO_PREFIX + msg); } } public static void warn(String msg) { if (isWarn()) { System.err.println(WARN_PREFIX + msg); } } public static void error(String msg, Throwable throwable) { if (isError()) { System.err.println(ERR_PREFIX + msg); if (throwable != null) { throwable.printStackTrace(); } } } private static boolean isDebug() { setConsoleLevel(System.getProperty(SOFA_MIDDLEWARE_LOG_INTERNAL_LEVEL, "WARN")); return consoleLogLevel.equals(Level.DEBUG); } private static boolean isInfo() { return isDebug() || consoleLogLevel.equals(Level.INFO); } private static boolean isWarn() { return isInfo() || consoleLogLevel.equals(Level.WARN); } private static boolean isError() { return isWarn() || consoleLogLevel.equals(Level.ERROR); } enum Level { DEBUG, INFO, WARN, ERROR } }