indentprintstream.java

MobilerRPC enables remote procedure calls between J2ME applications and java sevlet server.

/*
 * Copyright (c) 2003, Artem Rudoy
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package net.sourceforge.mobilerpc;

import java.io.PrintStream;

/**
 * $Id: IndentPrintStream.java,v 1.1.1.1 2003/02/08 08:20:28 artyomr Exp $
 * @author Artem Rudoy
 */
public class IndentPrintStream
{
    private PrintStream ps = null;
    private int indent = 0;
    private boolean isIndented = false;

    public IndentPrintStream(PrintStream ps)
    {
        this.ps = ps;
    }

    public void increase()
    {
        indent++;
    }

    public void decrease()
    {
        if(indent > 0)
            indent--;
    }

    public void println()
    {
        ps.println();
        isIndented = false;
    }

    public void println(String s)
    {
        printIndent();
        ps.println(s);
        isIndented = false;
    }

    public void print(String s)
    {
        printIndent();
        ps.print(s);
    }

    private void printIndent()
    {
        if(!isIndented)
        {
            for(int i = 0; i < indent; i++)
                ps.print("    ");
            isIndented = true;
        }
    }

    public void close()
    {
        ps.close();
    }
}