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ShuffleSimpleTag.javaAPI DocGlassfish v2 API3948Fri May 04 22:34:22 BST 2007jsp2.examples.simpletag

ShuffleSimpleTag.java

/*
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 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * Portions Copyright Apache Software Foundation.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * Header, with the fields enclosed by brackets [] replaced by your own
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 * elects to include this software in this distribution under the [CDDL or GPL
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package jsp2.examples.simpletag;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.JspFragment;
import javax.servlet.jsp.tagext.SimpleTagSupport;
import java.util.HashMap;
import java.io.IOException;

/**
 * SimpleTag handler that accepts takes three attributes of type
 * JspFragment and invokes then in a random order.
 */
public class ShuffleSimpleTag extends SimpleTagSupport {
    private JspFragment fragment1;
    private JspFragment fragment2;
    private JspFragment fragment3;

    public void doTag() throws JspException, IOException {
        switch( (int)(Math.random() * 6) ) {
            case 0:
                fragment1.invoke( null );
                fragment2.invoke( null );
                fragment3.invoke( null );
                break;
            case 1:
                fragment1.invoke( null );
                fragment3.invoke( null );
                fragment2.invoke( null );
                break;
            case 2:
                fragment2.invoke( null );
                fragment1.invoke( null );
                fragment3.invoke( null );
                break;
            case 3:
                fragment2.invoke( null );
                fragment3.invoke( null );
                fragment1.invoke( null );
                break;
            case 4:
                fragment3.invoke( null );
                fragment1.invoke( null );
                fragment2.invoke( null );
                break;
            case 5:
                fragment3.invoke( null );
                fragment2.invoke( null );
                fragment1.invoke( null );
                break;
        }
    }

    public void setFragment1( JspFragment fragment1 ) {
        this.fragment1 = fragment1;
    }
    
    public void setFragment2( JspFragment fragment2 ) {
        this.fragment2 = fragment2;
    }
    
    public void setFragment3( JspFragment fragment3 ) {
        this.fragment3 = fragment3;
    }
}