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/**************************************************************************
* AbstractMain
*
* $Revision: 1.67 $
* $Date: 2004/10/25 15:27:35 $
*
* Copyright (C) 2001 CERN - European Organization for Nuclear Research
* All rights reserved.
**************************************************************************/
package com.c2kernel.process;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.Enumeration;
import java.util.Properties;
import com.c2kernel.process.resource.BadArgumentsException;
import com.c2kernel.utils.FileStringUtility;
import com.c2kernel.utils.Logger;
/**
* @author abranson
* @author ogattaz
*
*/
abstract public class AbstractMain
{
public static boolean isServer = false;
private static ShutdownHandler shutdownHandler;
public static String MAIN_ARG_NONEWLOGSTREAM = "noNewLogStream";
public static String MAIN_ARG_CONFIG = "config";
public static String MAIN_ARG_LOGLEVEL = "logLevel";
public static String MAIN_ARG_LOGFILE = "logFile";
public static String MAIN_ARG_CONNECT = "connect";
public static String MAIN_ARG_HELP = "help";
/**
*
* @return a help text
*/
public static String getUsageHelpText() {
return "USAGE: com.c2kernel.process.AbstractMain \n"
+ " -config <server/client config file> \n"
+ " [-connect <LC connect file> ] (or LocalCentre in conf)\n"
+ " [-help] \n"
+ " [-noNewLogStream] (for embedded mode: the logger is already configured ) \n"
+ " [-logLevel 0-19] \n"
+ " [-logFile <path to log file>]";
}
/**************************************************************************
* reading and setting input paramaters
**************************************************************************
*
* Known arguments :
* <ul>
* <li>logLevel: the log level 0-9 (+10 to have time, +20 to have only one level)</li>
* <li>logFile: the full path of the target log file. if none, the Logstream is the stdOut</li>
* <li>noNewLogStream: if present no new Logstream is added to the logger (
* considers that the Logger is already configured)</li>
*
* <li>config</li>
* <li>connect</li>
* <li>LocalCentre</li>
* </ul>
*
*
* @param args
* @return
* @throws BadArgumentsException
*/
public static Properties readC2KArgs( String[] args ) throws BadArgumentsException {
Properties c2kProps;
Properties argProps = new Properties();
int logLevel = 0;
PrintStream logStream = System.out;
int i = 0;
while( i < args.length ) {
if (args[i].startsWith("-") && args[i].length()>1) {
String key = args[i].substring(1);
if (argProps.containsKey(key))
throw new BadArgumentsException("Argument "+args[i]+" given twice");
String value = "";
if (!args[i+1].startsWith("-"))
value = args[++i];
argProps.put(key, value);
i++;
}
else
throw new BadArgumentsException("Bad argument: "+args[i]);
}
// print the help and die
if (argProps.containsKey(MAIN_ARG_HELP)){
System.out.println();
System.out.println(getUsageHelpText());
Logger.die("Stop kernel");
}
if (argProps.containsKey("logFile"))
try {
logStream = new PrintStream(new FileOutputStream(argProps.getProperty("logFile"), true));
} catch (FileNotFoundException e) {
e.printStackTrace();
throw new BadArgumentsException("Logfile "+argProps.getProperty("logFile")+" cannot be created");
}
// if the optional arg "noNewLogStream" isn't present => add a
// new LogStream
boolean wMustAddNewLogStream = !argProps.contains(MAIN_ARG_NONEWLOGSTREAM);
if (wMustAddNewLogStream) {
// Set up log stream
if (argProps.containsKey("logLevel"))
logLevel = Integer.parseInt(argProps.getProperty("logLevel"));
Logger.addLogStream(logStream, logLevel);
}
if (wMustAddNewLogStream) Logger.msg(
String.format("New logStream added at logLevel %d: %s", logLevel, logStream.getClass().getName()));
// Dump params if log high enough
if (Logger.doLog(3)) for (Enumeration<?> e = argProps.propertyNames(); e.hasMoreElements();) {
String next = (String)e.nextElement();
System.out.println("AbstractMain: Param "+next+": "+argProps.getProperty(next));
}
String configPath = argProps.getProperty("config");
if (configPath == null)
throw new BadArgumentsException("Config file not specified");
if (!new File(configPath).exists())
throw new BadArgumentsException("Config file "+configPath+" not found");
else
Logger.msg(0, "Config file: "+configPath);
// Load config & connect files into c2kprops
c2kProps = FileStringUtility.loadConfigFile(argProps.getProperty("config") );
c2kProps.putAll(argProps); // args overlap config
String connectFile = c2kProps.getProperty("connect");
if (connectFile == null)
throw new BadArgumentsException("Connect file not specified");
if (!new File(connectFile).exists())
throw new BadArgumentsException("Connect file "+connectFile+" not found");
else
Logger.msg(0, "Connect file: "+connectFile);
FileStringUtility.appendConfigFile( c2kProps, connectFile);
if (!c2kProps.containsKey("LocalCentre")) {
String connectFileName = new File(connectFile).getName();
String centreId = connectFileName.substring(0, connectFileName.lastIndexOf(".clc"));
c2kProps.setProperty("LocalCentre", centreId);
}
c2kProps.putAll(argProps); // args override connect file too
Logger.msg(7, "AbstractMain::standardSetUp() - readC2KArgs() DONE.");
return c2kProps;
}
public static void setShutdownHandler(ShutdownHandler handler) {
shutdownHandler = handler;
}
public static void shutdown(int errCode) {
if (shutdownHandler!= null)
shutdownHandler.shutdown(errCode, isServer);
else
try {
Gateway.close();
} catch (Exception ex) {
Logger.error(ex);
}
}
}
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