filelog.java

Logica lastest SMPP API

/*
 * Copyright (c) 1996-2001
 * Logica Mobile Networks Limited
 * All rights reserved.
 *
 * This software is distributed under Logica Open Source License Version 1.0
 * ("Licence Agreement"). You shall use it and distribute only in accordance
 * with the terms of the License Agreement.
 *
 */
package com.logica.smpp.debug;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

/**
 * @author Logica Mobile Networks SMPP Open Source Team
 * @version 1.0, 11 Jun 2001
 */

public class FileLog
{
	private boolean active = false;
	// filesize defaults to 1 MB
	private long filesize = 1024000;
	private String fileExtension = "";
	private String endLine = ""; // the system-specific end-of-line character
	private String fileName = "";
	private String fileDir = "";

	private File logFile;
	private BufferedWriter fileOut;
	private char currentFileIndex = '0';

	private static String WEEK_DAYS[] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
	private static String MONTHS[] = {"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};

	public FileLog()
	{
		endLine = System.getProperty("line.separator","");
	}

	public FileLog(String dir, String name)
	{
		endLine = System.getProperty("line.separator","");
		setCurrentFileIndex('0');
		setFileDir(dir);
		if (name != "") {
			setFileName(name.substring(0,name.length()-4));
			setFileExtension(name.substring(name.length()-4,name.length()));
			openFile(getFullName());
		} else {
			deactivate();
		}
	}

	public void finalize()
	{
		try {
			fileOut.flush();
			fileOut.close();
		} catch (IOException e) {
			// too late for exceptions
		}
	}


	protected void setCurrentFileIndex(char c)        { currentFileIndex = c; }
	protected void setFileDir(String fd)              { fileDir = fd;    }
	protected void setFileName(String fnr)            { fileName = fnr;}
	public void setFileSize(int size)                 { filesize = size;}
	protected void setFileExtension(String extension) { fileExtension = extension;}
	protected char getCurrentFileIndex()   { return currentFileIndex; }
	protected String getFileDir()       { return fileDir; }
	protected String getFileName()      { return fileName; }
	protected String getFileExtension() { return(fileExtension); }
	protected String getFullName() {
		return new String(getFileDir() +
						  getFileName() +
						  getFileExtension() +
						  getCurrentFileIndex());
	}

	public void activate()    { active = true; }
	public void deactivate()  { active = false; }
	public boolean isActive() { return active; }

	protected void openFile(String filename)
	{
		try {
			logFile = new File(filename);
			fileOut = new BufferedWriter(new FileWriter(filename,false));
		} catch (Exception e) {
			System.err.println("The file stream could not be opened in openFile() " + e);
		}
	}

	private void changeFile()
	{
		if (getCurrentFileIndex()<'2') {
			setCurrentFileIndex((char)((int)(getCurrentFileIndex()+1)));
		} else {
			setCurrentFileIndex('0');
		}

		try {
			fileOut = new BufferedWriter(new FileWriter(getFullName()));
		} catch(Exception e) {
			System.err.println("Error setting fileOut to next file in changeFile() " + e);
		}
		logFile = new File(getFullName());
	}

	synchronized protected void genericWrite(String msg)
	{
		long size = logFile.length();
		try {
			if (size >= filesize) {
				changeFile();
			}
			String tmStamp = getLineTimeStamp();
			fileOut.write(tmStamp+" "+msg+endLine);
			fileOut.flush();
		} catch(Exception e) {
			System.err.println("Event log failure in genericWrite() "+e);
		}
	}


	/**
	 * Paolo - increased resolution.
	 */
	public static String getLineTimeStamp()
	{
		return (new java.sql.Timestamp(System.currentTimeMillis())).toString();
	}

/*
	public static String getLineTimeStamp()
	{
		String retDate = "";
		String padString = "";
		Calendar fullCalendar = Calendar.getInstance();
		Integer convert = new Integer(0);

		//for naming Validations, the array goes from 0-6 DAY_OF_WEEK is 1-7
		padString = convert.toString(fullCalendar.get(fullCalendar.HOUR));
		retDate += zeroPad(2,padString);
		padString = convert.toString(fullCalendar.get(fullCalendar.MINUTE));
		retDate += ":"+zeroPad(2,padString);
		padString = convert.toString(fullCalendar.get(fullCalendar.SECOND));
		retDate += ":"+zeroPad(2,padString);
		return retDate;
	}
*/

	protected static String zeroPad(int length,String toPad)
	{
		int numberOfZeroes = length - toPad.length();
		for(int counter=0;counter<numberOfZeroes;counter++) {
			toPad = "0" + toPad;
		}
		return toPad;
	}

	synchronized protected void blankLine()
	{
		try {
			if (logFile.length() < filesize)
			{
				fileOut.write(endLine);
				fileOut.flush();
			}
		} catch(Exception e) {
			System.err.println("Event log failure in blankLine() "+e);
		}
	}
}