| /* |
| * 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.slf4j.impl; |
| |
| import org.slf4j.helpers.MarkerIgnoringBase; |
| import org.slf4j.helpers.MessageFormatter; |
| |
| /** |
| * A simple logger that can be controlled from the ssh client |
| */ |
| public class SimpleLogger extends MarkerIgnoringBase { |
| |
| public static final int ERROR = 0; |
| public static final int WARN = 1; |
| public static final int INFO = 2; |
| public static final int DEBUG = 3; |
| public static final int TRACE = 4; |
| |
| private static int level = 0; |
| private static long startTime = System.currentTimeMillis(); |
| public static final String LINE_SEPARATOR = System.getProperty("line.separator"); |
| |
| public static int getLevel() { |
| return level; |
| } |
| |
| public static void setLevel(int level) { |
| SimpleLogger.level = level; |
| } |
| |
| private String name; |
| |
| SimpleLogger(String name) { |
| this.name = name; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public boolean isTraceEnabled() { |
| return isLogEnabled(TRACE); |
| } |
| |
| public void trace(String msg) { |
| log(TRACE, msg); |
| } |
| |
| public void trace(String format, Object arg) { |
| log(TRACE, format, arg); |
| } |
| |
| public void trace(String format, Object arg1, Object arg2) { |
| log(TRACE, format, arg1, arg2); |
| } |
| |
| public void trace(String format, Object[] argArray) { |
| log(TRACE, format, argArray); |
| } |
| |
| public void trace(String msg, Throwable t) { |
| log(TRACE, msg, t); |
| } |
| |
| public boolean isDebugEnabled() { |
| return isLogEnabled(DEBUG); |
| } |
| |
| public void debug(String msg) { |
| log(DEBUG, msg); |
| } |
| |
| public void debug(String format, Object arg) { |
| log(DEBUG, format, arg); |
| } |
| |
| public void debug(String format, Object arg1, Object arg2) { |
| log(DEBUG, format, arg1, arg2); |
| } |
| |
| public void debug(String format, Object[] argArray) { |
| log(DEBUG, format, argArray, null); |
| } |
| |
| public void debug(String msg, Throwable t) { |
| log(DEBUG, msg, t); |
| } |
| |
| public boolean isInfoEnabled() { |
| return isLogEnabled(INFO); |
| } |
| |
| public void info(String msg) { |
| log(INFO, msg); |
| } |
| |
| public void info(String format, Object arg) { |
| log(INFO, format, arg); |
| } |
| |
| public void info(String format, Object arg1, Object arg2) { |
| log(INFO, format, arg1, arg2); |
| } |
| |
| public void info(String format, Object[] argArray) { |
| log(INFO, format, argArray); |
| } |
| |
| public void info(String msg, Throwable t) { |
| log(INFO, msg, t); |
| } |
| |
| public boolean isWarnEnabled() { |
| return isLogEnabled(WARN); |
| } |
| |
| public void warn(String msg) { |
| log(WARN, msg); |
| } |
| |
| public void warn(String format, Object arg) { |
| log(WARN, format, arg); |
| } |
| |
| public void warn(String format, Object arg1, Object arg2) { |
| log(WARN, format, arg1, arg2); |
| } |
| |
| public void warn(String format, Object[] argArray) { |
| log(WARN, format, argArray); |
| } |
| |
| public void warn(String msg, Throwable t) { |
| log(WARN, msg, t); |
| } |
| |
| public boolean isErrorEnabled() { |
| return isLogEnabled(ERROR); |
| } |
| |
| public void error(String msg) { |
| log(ERROR, msg); |
| } |
| |
| public void error(String format, Object arg) { |
| log(ERROR, format, arg); |
| } |
| |
| public void error(String format, Object arg1, Object arg2) { |
| log(ERROR, format, arg1, arg2); |
| } |
| |
| public void error(String format, Object[] argArray) { |
| log(ERROR, format, argArray); |
| } |
| |
| public void error(String msg, Throwable t) { |
| log(ERROR, msg, t); |
| } |
| |
| protected boolean isLogEnabled(int level) { |
| return SimpleLogger.level >= level; |
| } |
| |
| protected void log(int level, String msg) { |
| if (isLogEnabled(level)) { |
| doLog(level, msg, null); |
| } |
| } |
| |
| protected void log(int level, String format, Object arg) { |
| if (isLogEnabled(level)) { |
| String msg = MessageFormatter.format(format, arg).getMessage(); |
| doLog(level, msg, null); |
| } |
| } |
| |
| protected void log(int level, String format, Object arg1, Object arg2) { |
| if (isLogEnabled(level)) { |
| String msg = MessageFormatter.format(format, arg1, arg2).getMessage(); |
| doLog(level, msg, null); |
| } |
| } |
| |
| protected void log(int level, String format, Object[] args) { |
| if (isLogEnabled(level)) { |
| String msg = MessageFormatter.format(format, args).getMessage(); |
| doLog(level, msg, null); |
| } |
| } |
| |
| protected void log(int level, String msg, Throwable t) { |
| if (isLogEnabled(level)) { |
| doLog(level, msg, t); |
| } |
| } |
| |
| protected void doLog(int level, String msg, Throwable t) { |
| StringBuffer buf = new StringBuffer(); |
| long millis = System.currentTimeMillis(); |
| buf.append(millis - startTime); |
| buf.append(" ["); |
| buf.append(Thread.currentThread().getName()); |
| buf.append("] "); |
| switch (level) { |
| case TRACE: |
| buf.append("TRACE"); break; |
| case DEBUG: |
| buf.append("DEBUG"); break; |
| case INFO: |
| buf.append("INFO"); break; |
| case WARN: |
| buf.append("WARN"); break; |
| case ERROR: |
| buf.append("ERROR"); break; |
| } |
| buf.append(" "); |
| buf.append(name); |
| buf.append(" - "); |
| buf.append(msg); |
| buf.append(LINE_SEPARATOR); |
| System.err.print(buf.toString()); |
| if (t != null) { |
| t.printStackTrace(System.err); |
| } |
| System.err.flush(); |
| } |
| } |