    /**
     * Copyright (c) 1999 The Apache Software Foundation.  All rights
     * reserved.
     */

    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;
        }
    }