Thread: can't seem to find the log

Also these questions about how the Logger program is used in the Dukascopy environment:

How does your code call the Logger class's constructor? What statements have: new Logger() in them?
How does your code call the Logger class's methods?

Why do you think the Logger class is usable? Where did you get it?

If you did not write the code, how did it get this statement in it?

private String   logFile  = "C:/Users/Bob/Documents/BM_mod14.log";

What was in the code before you added that statement? If you look at the code in the constructor you can see that the value of logFile is replaced:

          logFile = lf;

so giving it any value is useless because it is replaced in the constructor.

--- Update ---

Try this:

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.io.*;    //IOException;
import java.util.HashSet;
import java.util.Vector;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Set;
import java.util.TimeZone;
 
 class IConsole {  
           PrintStream getOut() {
               return System.out;
           }
  }      
 
class Logger {
 
        private IConsole console = null;
        private String   logFile  = "C:/Users/Bob/Documents/BM_mod14.log";
        private boolean  info     = true;
        private boolean  error    = true;
        private boolean  debug    = true;
 
 
        public Logger(IConsole cons, String lf, boolean inf, boolean err, boolean dbg) {
            console = cons;
            logFile = lf;
            info    = inf;
            error   = err;
            debug   = dbg;    
            if (!"".equals(lf)) new File(logFile).delete();
        }
 
        public void info(String Data) {
            if (info) {
                Data = "INFO  : " + Data;
                Log(Data);
            }
        }
 
        public void error(String Data) {
            if (error) {
                Data = "ERROR :  " + Data;
                Log(Data);                
            }            
        }
 
        public void debug(String Data) {
            if (debug) {
                Data = "DEBUG :  " + Data;
                Log(Data);                
            }            
        }
 
        private void Log(String Data) {
             try {
                 if (console != null) console.getOut().println(Data);
                 LogToFile(Data);
             } catch (Exception e) {
             }
         }    
 
         private void LogToFile(String Data) {
             try {    
                 if ("".equals(Data)) return;
                 if ("".equals(logFile)) return;
 
                 File                 file = new File(logFile);                                
                 FileOutputStream     fos  = new FileOutputStream(file, true);
                 OutputStreamWriter   osw  = new OutputStreamWriter(fos, "Cp1252" /* "ISO-8859-1" */);
                 BufferedWriter       bw   = new BufferedWriter(osw);
                 try {
                     bw.write(Data + "\n");
                 } finally {
                     try {
                         bw.flush();
                         bw.close();
                     } catch (IOException e) {
                         System.out.println("Error: " + e.getMessage());
                         e.printStackTrace();
                     }
                     try {
                         osw.flush();
                         osw.close();
                     } catch (IOException e) {
                         System.out.println("Error: " + e.getMessage());
                         e.printStackTrace();
                     }
                     try {
                         fos.flush();
                         fos.close();
                     } catch (IOException e) {
                         System.out.println("Error: " + e.getMessage());
                         e.printStackTrace();
                     }
                 }
             } catch (IOException e) {
                    System.out.println("Error: " + e.getMessage());
                    e.printStackTrace();
                     }
 
         } // end LogToFile
 
      public static void main(String[] args) {
         //  add code here to declare an instance of the logger class
         Logger l = new Logger(new IConsole(), "BobsLog.txt", false, false, false);
         l.Log("This is  a test 2");
 
 
     }  // end main
 
 } // end of class Logger

You keep skipping these questions:

How does your code call the Logger class's constructor? What statements have: new Logger() in them?
How does your code call the Logger class's methods?

error: can't find main(String[]) method in class: IConsole

The command needs to be: java Logger
not Java IConsole.

Change the source by putting the IConsole class at the end of the source file.
Also add the word public before the class Logger: public class Logger {

How does your code call the Logger class's constructor? What statements have: new Logger() in them?

Logger l = new Logger(new IConsole(), "BobsLog.txt", false, false, false

How does your code call the Logger class's methods?

logger.info(FormatDate(askBar.getTime()) +  " LEVERAGE CONTROL: " + uol + " -- Orders closed");
 
logger.info(FormatDate(tick.getTime()) + ": openOrder " + label + " " + FormatString(command.toString(), 4) + " --> lot: " + FormatFloat(Amount) + " price: " + FormatFloat(price) + ", TakeProfit: " + FormatFloat(TakeProfit) + ", StopLoss: " + FormatFloat(StopLoss));
 
logger.error(e.getMessage());
 
logger.debug(FormatDate(tick.getTime()) + " ENTER_LONG ("+instrument.toString()+")  - NOT ALLOWED");

Error:-
c:\Users\rgmat\Desktop>java logger.java
logger.java:106: error: non-static variable this cannot be referenced from a static context
Logger l = new Logger(new IConsole(), "BobsLog.txt", false, false, false);
^
1 error

Current code:-

        import java.io.BufferedWriter;
        import java.io.File;
        import java.io.FileOutputStream;
        import java.io.OutputStreamWriter;
        import java.io.*;    //IOException;
        import java.util.HashSet;
        import java.util.Vector;
        import java.text.DecimalFormat;
        import java.text.SimpleDateFormat;
        import java.util.Calendar;
        import java.util.Date;
        import java.util.List;
        import java.util.Set;
        import java.util.TimeZone;
 
        public class Logger {
 
                private IConsole console = null;
                private String   logFile  = "";
                private boolean  info     = true;
                private boolean  error    = true;
                private boolean  debug    = true;
 
 
                public Logger(IConsole cons, String lf, boolean inf, boolean err, boolean dbg) {
                    console = cons;
                    logFile = lf;
                    info    = inf;
                    error   = err;
                    debug   = dbg;    
                    if (!"".equals(lf)) new File(logFile).delete();
                }
 
                public void info(String Data) {
                    if (info) {
                        Data = "INFO  : " + Data;
                        Log(Data);
                    }
                }
 
                public void error(String Data) {
                    if (error) {
                        Data = "ERROR :  " + Data;
                        Log(Data);                
                    }            
                }
 
                public void debug(String Data) {
                    if (debug) {
                        Data = "DEBUG :  " + Data;
                        Log(Data);                
                    }            
                }
 
                private void Log(String Data) {
                     try {
                         if (console != null) console.getOut().println(Data);
                         LogToFile(Data);
                     } catch (Exception e) {
                     }
                 }    
 
                 private void LogToFile(String Data) {
                     try {    
                         if ("".equals(Data)) return;
                         if ("".equals(logFile)) return;
 
                         File                 file = new File(logFile);                                
                         FileOutputStream     fos  = new FileOutputStream(file, true);
                         OutputStreamWriter   osw  = new OutputStreamWriter(fos, "Cp1252" /* "ISO-8859-1" */);
                         BufferedWriter       bw   = new BufferedWriter(osw);
                         try {
                             bw.write(Data + "\n");
                         } finally {
                             try {
                                 bw.flush();
                                 bw.close();
                             } catch (IOException e) {
                                 System.out.println("Error: " + e.getMessage());
                                 e.printStackTrace();
                             }
                             try {
                                 osw.flush();
                                 osw.close();
                             } catch (IOException e) {
                                 System.out.println("Error: " + e.getMessage());
                                 e.printStackTrace();
                             }
                             try {
                                 fos.flush();
                                 fos.close();
                             } catch (IOException e) {
                                 System.out.println("Error: " + e.getMessage());
                                 e.printStackTrace();
                             }
                         }
                     } catch (IOException e) {
                            System.out.println("Error: " + e.getMessage());
                            e.printStackTrace();
                             }
 
                 } // end LogToFile
 
              public static void main(String[] args) {
                 //  add code here to declare an instance of the logger class
                 Logger l = new Logger(new IConsole(), "BobsLog.txt", false, false, false);
                 l.Log("This is  a test 2");
 
 
             }  // end main
 
		 class IConsole {  
                   PrintStream getOut() {
                       return System.out;
                   }
          }      
 
 
         } // end of class Logger

Move the IConsole class's definition outside of the Logger class (past the line: } // end of class Logger) at the end of the source file.

How does your code call the Logger class's constructor? What statements have: new Logger() in them?

Logger l = new Logger(new IConsole(), "BobsLog.txt", false, false, false

That is my code for testing.
What is in your code on the Dukascopy system? How do you expect to use the Logger class in the Dukascopy system?

new BM_mod14.Logger(console, "", true, true, false);

That statement says the path to the logger file is "". Where is that location????

Note this statement:

                  if ("".equals(logFile)) return;

Try this with a good path in the original code:

   new BM_mod14.Logger(console, "GoodPath.log", true, true, false);

java.io.IOException: Stream closed
at java.base/sun.nio.cs.StreamEncoder.ensureOpen(StreamEncoder. java:51)
at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java: 158)
at java.base/java.io.OutputStreamWriter.flush(OutputStreamWrite r.java:251)
at Logger.LogToFile(logger.java:83)

That says the code calls the flush method on line 83 for an output stream that is already closed.
The code has 3 calls to the close method but it only needs one. Remove the other 2 calls to close.

Was the log file created and written to?

I think only 1 close is required. The API doc for the close method says: Closes the stream, flushing it first.

yes - logfile is written ...

Have you solved the problem?

Great. I am glad you got it working.