type.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;

/**
 * $Id: Type.java,v 1.2 2003/04/15 08:59:36 artyomr Exp $
 * @author Artem Rudoy
 */
public abstract class Type
{
    private static int iteratorCount = 0;

    private String name = null;

    public Type(String name)
    {
        this.name = name;
    }

    public String getName()
    {
        return name;
    }

    public abstract void generateLoadCode(IndentPrintStream ps, String attributeName, String dataInputName);

    public abstract void generateWriteCode(IndentPrintStream ps, String attributeName, String dataOutputName);

    public void generateLoadArrayCode(IndentPrintStream ps, String attributeName, String dataInputName)
    {
        ps.println("if(" + dataInputName + ".readBoolean())");
        ps.println("{");
        ps.increase();
        ps.println(attributeName + " = new " + getName() + "[" + dataInputName + ".readInt()];");
        String i = getInteratorName();
        ps.println("for(int " + i + " = 0; " + i + " < " + attributeName + ".length; " + i + "++)");
        ps.println("{");
        ps.increase();
        generateLoadCode(ps, attributeName + "[" + i + "]", dataInputName);
        ps.decrease();
        ps.println("}");
        ps.decrease();
        ps.println("}");
        ps.println("else");
        ps.increase();
        ps.println(attributeName + " = null;");
        ps.decrease();
    }

    public void generateWriteArrayCode(IndentPrintStream ps, String attributeName, String dataOutputName)
    {
        ps.println("if(" + attributeName + " == null)");
        ps.increase();
        ps.println(dataOutputName + ".writeBoolean(false);");
        ps.decrease();
        ps.println("else");
        ps.println("{");
        ps.increase();
        ps.println(dataOutputName + ".writeBoolean(true);");
        ps.println(dataOutputName + ".writeInt(" + attributeName + ".length);");
        String i = getInteratorName();
        ps.println("for(int " + i + " = 0; " + i + " < " + attributeName + ".length; " + i + "++)");
        ps.println("{");
        ps.increase();
        generateWriteCode(ps, attributeName + "[" + i + "]", dataOutputName);
        ps.decrease();
        ps.println("}");
        ps.decrease();
        ps.println("}");
    }

    public static String getInteratorName()
    {
        return "i" + (iteratorCount++);
    }
}