| /******************************************************************************* |
| * Copyright (c) 2004-2008 Andras Schmidt, Andras Balogh, Istvan Rath and Daniel Varro |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Andras Schmidt, Andras Balogh, Istvan Rath - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.viatra2.logger; |
| |
| /** |
| * @author Istvan Rath |
| * |
| */ |
| |
| import java.io.FileOutputStream; |
| import java.io.PrintStream; |
| |
| import org.eclipse.viatra2.framework.properties.VPMProperties; |
| |
| public class SimpleLogger implements Logger { |
| |
| PrintStream out; |
| |
| public SimpleLogger() { |
| out = System.out; |
| } |
| |
| int level = 100; |
| |
| public void setLevel(int l) { |
| level = l; |
| } |
| |
| public void warning(String s) { |
| message(Logger.WARNING, s); |
| } |
| |
| public void error(String s) { |
| message(Logger.ERROR, s); |
| } |
| |
| public void debug(String s) { |
| message(Logger.DEBUG, s); |
| } |
| |
| public void fatal(String s) { |
| message(Logger.FATAL, s); |
| } |
| |
| public void info(String s) { |
| message(Logger.INFO, s); |
| } |
| |
| public void init(VPMProperties props) { |
| |
| try { |
| String outs = props.getRuntimeProperty("log", "output"); |
| if ( outs == null || outs.equals("screen") || outs.equals("") ) |
| out = System.out; |
| else |
| out = new PrintStream(new FileOutputStream(outs)); |
| } catch (Exception ex) { |
| System.out.println("Couldn't initialize logger."); |
| System.out.println("Stopping VPM session."); |
| System.exit(1); |
| } |
| } |
| |
| public void message(int level, String msg, Throwable cause) { |
| if (this.level >= level) { |
| out.println("[" + Logger.levelnames[level] + "] " + msg); |
| if (cause != null) { |
| out.println("[" + Logger.levelnames[level] |
| + "] Exception stack trace follows:"); |
| cause.printStackTrace(); |
| } |
| } |
| } |
| |
| public void message(int level, String msg) { |
| message(level, msg, null); |
| } |
| |
| public void printStackTrace(Throwable t) { |
| System.out.println("[exception track trace]"); |
| t.printStackTrace(); |
| } |
| } |