defaultdebug.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;

/**
 * Simple implementation of <code>Debug</code> interface which writes
 * the trace lines to the <code>System.out</code> and provides simple
 * indentation. This is the class whose instance is assigned as a default
 * debug class to the <code>SmppObject</code>'s debug object.
 *
 * @see Debug
 * @see com.logica.smpp.SmppObject
 *
 * @author Logica Mobile Networks SMPP Open Source Team
 * @version 1.2, 16 Oct 2001
 */

/*
  25-09-01 [e-mail] added functions for grouping althoug grouping not
                           supported
  16-10-01 [e-mail] added method active(group)
*/

public class DefaultDebug implements Debug
{
    private int indent = 0;
    private boolean active = false;

    public void enter(int group, Object from, String name)
    {
        enter(from,name);
    }

    public void enter(Object from, String name)
    {
        if (active) {
            System.out.println(getDelimiter(true, from, name));
            indent++;
        }
    }

    public void write(int group, String msg)
    {
        write(msg);
    }

    public void write(String msg)
    {
        if (active) {
            System.out.println(getIndent() + " " + msg);
        }
    }

    public void exit(int group, Object from)
    {
        exit(from);
    }

    public void exit(Object from)
    {
        if (active) {
            indent--;
            if (indent < 0) {
                // it's your fault :-)
                indent = 0;
            }
            System.out.println(getDelimiter(false, from, ""));
        }
    }

    public void activate()   { active = true; }
    public void activate(int group) { }
    public void deactivate() { active = false; }
    public void deactivate(int group) { }

    public boolean active(int group) { return true; }

    private String getDelimiter(boolean start, Object from, String name)
    {
        String indentStr = getIndent();
        if (start) {
            indentStr += "-> ";
        } else {
            indentStr += "<- ";
        }
        return indentStr + from.toString() + (name == "" ? "" : " " + name);
    }

    private String getIndent()
    {
        String result = new String("");
        for (int i = 0; i<indent; i++) {
            result += "  ";
        }
        return result;
    }

}