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/*
* Copyright 2015 ARM Limited
*
* Licensed 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.linaro.bench;
public class SimpleLogger {
public enum LogLevel {
DEBUG, INFO, WARN, ERROR, FATAL,
};
private LogLevel logLevel;
static class SingletonHolder {
// default log level: ERROR.
static SimpleLogger instance = new SimpleLogger(LogLevel.ERROR);
}
public static SimpleLogger getInstance() {
return SingletonHolder.instance;
}
public void setLogLevel(String level) {
if (level.equals("DEBUG")) {
setLogLevel(LogLevel.DEBUG);
} else if (level.equals("INFO")) {
setLogLevel(LogLevel.INFO);
} else if (level.equals("WARN")) {
setLogLevel(LogLevel.WARN);
} else if (level.equals("ERROR")) {
setLogLevel(LogLevel.ERROR);
} else if (level.equals("FATAL")) {
setLogLevel(LogLevel.FATAL);
} else {
fatal("Unknown log level.");
}
}
private SimpleLogger(LogLevel level) {
logLevel = level;
}
public void setLogLevel(LogLevel level) {
logLevel = level;
}
public LogLevel getLogLevel() {
return this.logLevel;
}
public void log(LogLevel thisLevel, String msg) {
if (thisLevel.ordinal() < logLevel.ordinal()) {
return;
}
System.err.println(thisLevel.toString() + ": " + msg);
if (thisLevel.compareTo(LogLevel.FATAL) == 0) {
System.exit(1);
}
}
public void info(String msg) {
log(LogLevel.INFO, msg);
}
public void debug(String msg) {
log(LogLevel.DEBUG, msg);
}
public void error(String msg) {
log(LogLevel.ERROR, msg);
}
public void fatal(String msg) {
log(LogLevel.FATAL, msg);
}
}
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