From b086f57f56bf0eb9dab9cf321a0f69aaaae84347 Mon Sep 17 00:00:00 2001 From: Andrew Branson Date: Wed, 30 May 2012 08:37:45 +0200 Subject: Initial Maven Conversion --- src/main/java/com/c2kernel/utils/Logger.java | 194 +++++++++++++++++++++++++++ 1 file changed, 194 insertions(+) create mode 100644 src/main/java/com/c2kernel/utils/Logger.java (limited to 'src/main/java/com/c2kernel/utils/Logger.java') diff --git a/src/main/java/com/c2kernel/utils/Logger.java b/src/main/java/com/c2kernel/utils/Logger.java new file mode 100644 index 0000000..45edbee --- /dev/null +++ b/src/main/java/com/c2kernel/utils/Logger.java @@ -0,0 +1,194 @@ +package com.c2kernel.utils; +import java.io.PrintStream; +import java.io.PrintWriter; +import java.io.StringWriter; +import java.sql.Timestamp; +import java.util.HashMap; +import java.util.Iterator; + +import javax.swing.JOptionPane; + +import org.omg.CORBA.UserException; +import org.tanukisoftware.wrapper.WrapperManager; + +import com.c2kernel.process.AbstractMain; +import com.c2kernel.process.Gateway; +import com.c2kernel.scripting.ScriptConsole; +import com.c2kernel.utils.server.SimpleTCPIPServer; +/** + * 
- message string should always contain the class name and the method name: Logger.msg(1,"ItemFact::createDir() - LifeCycle DB created"); - use meaningfull abbreviation and also use the dash to separate the 'header' from the message! - each method should start with this 'method signature' debug: Logger.msg(1,"ItemFact::createDir() - path:" + path);
+*
+ */ +public class Logger +{ + /** + * logging level 0 (only error & warning) => no logging ; 9 => maximum logging + * add ten to output time before each message + */ + private static int mHighestLogLevel = 0; + private static HashMap logStreams = new HashMap(); + static protected SimpleTCPIPServer mConsole = null; + + static private void printMessage(String message, int msgLogLevel) + { + synchronized(logStreams) { + for (Iterator iter = logStreams.keySet().iterator(); iter.hasNext();) { + PrintStream element = iter.next(); + int logLevel = logStreams.get(element).intValue(); + if (logLevel < msgLogLevel || (logLevel > 9 && logLevel - 10 < msgLogLevel)) + continue; + if (logLevel > 9) + { + Timestamp ts = new Timestamp(System.currentTimeMillis()); + String sTime = ts.toString(); + message = sTime + " - " + message; + } + try { + element.println(message); + } catch (Exception ex) { + iter.remove(); + } + } + } + } + + static private void printMessage(Throwable ex) { + StringWriter msgString = new StringWriter(); + PrintWriter msg = new PrintWriter(msgString); + msg.print(ex instanceof Exception ? "EXCEPTION:" : "JVM ERROR:"); + ex.printStackTrace(msg); + printMessage(msgString.toString(), 0); + } + + static public boolean doLog(int logLevel) + { + return mHighestLogLevel >= logLevel; + } + /** + * Use this only for temporary messages while developing/debugging When the code is stable, change calls to debug to + * message/warning/error with an appropriate log level This makes it easier to manage debug calls in the source. + * + * @param msg - + * the string to write to the console, or log file if specified in cmd line + */ + static public void debug(String msg) + { + msg("DEBUG : " + msg); + } + static public void debug(int logLevel, String msg) + { + msg(logLevel, "DEBUG : " + msg); + } + /** + * Use Logger.message to report information that will be useful for debugging a release + * + * @param level - + * log level of this message. If the current log level has been on the cmd line to be less that this number, the log message + * will not be displayed + * @param msg - + * the string to write to the console, or log file if specified in cmd line + */ + static public void msg(int level, String msg) + { + printMessage(msg, level); + } + static public void msg(String msg) + { + printMessage(msg, 0); + } + static public void error(String msg) + { + printMessage("ERROR : " + msg, 0); + } + static public void error(Throwable ex) + { + printMessage(ex); + } + static public void warning(String msg) + { + printMessage("WARNING: " + msg, 0); + } + static public void die(String msg) + { + printMessage("FATAL : " + msg, 0); + if (AbstractMain.runningAsWrapper) + WrapperManager.stop(1); + else + System.exit(1); + } + static public void exceptionDialog(Exception ex) + { + String className = ex.getClass().getName(); + className = className.substring(className.lastIndexOf('.') + 1); + String error = ex.getMessage(); + if (ex instanceof UserException) + error = error.substring(error.indexOf(' ') + 1); + JOptionPane.showMessageDialog(null, error, className, JOptionPane.ERROR_MESSAGE); + } + /** + * @param console + */ + public static void addLogStream(PrintStream console, int logLevel) { + try { + console.println("***********************************************************"); + console.println(" C2Kernel log started at level "+logLevel+" @"+new Timestamp(System.currentTimeMillis()).toString()); + console.println("***********************************************************"); + } catch (Exception ex) { + System.out.println("Exception accessing log stream"); + ex.printStackTrace(); + } + + synchronized(logStreams) { + logStreams.put(console, new Integer(logLevel)); + if (logLevel > 9) logLevel-=10; + if (logLevel > mHighestLogLevel) mHighestLogLevel = logLevel; + } + + } + /** + * @param console + */ + public static void removeLogStream(PrintStream console) { + synchronized(logStreams) { + Integer logIntObj = logStreams.get(console); + if (logIntObj == null) return; // not registered + int logLevel = (logIntObj).intValue(); + logStreams.remove(console); + + // recalculate lowest log level + if (logLevel == mHighestLogLevel || (logLevel > 9 && logLevel-10 == mHighestLogLevel)) { + mHighestLogLevel = -1; + for (Integer element : logStreams.values()) { + int thisLogLevel = element.intValue()>9?element.intValue()-10:element.intValue(); + if (thisLogLevel > mHighestLogLevel || mHighestLogLevel == -1) + mHighestLogLevel = thisLogLevel; + } + } + } + } + + static public void initConsole(String id) + { + String portString = Gateway.getProperty(id+".Console.port"); + int port = 0; + try { + port = Integer.parseInt(portString); + } catch (NumberFormatException ex) { + Logger.msg("No port defined for "+id+" console. Using any port."); + } + + mConsole = new SimpleTCPIPServer(port, ScriptConsole.class, 5); + mConsole.startListening(); + Gateway.setProperty(id+".Console.port", String.valueOf(mConsole.getPort())); + } + + static public int getConsolePort() { + return mConsole.getPort(); + } + + static public void closeConsole() + { + if (mConsole != null) + mConsole.stopListening(); + } +} -- cgit v1.2.3