package jsp2.examples.simpletag; import java.io.IOException; import java.util.Random; import javax.servlet.jsp.JspException; import javax.servlet.jsp.tagext.JspFragment; import javax.servlet.jsp.tagext.SimpleTagSupport; /** * SimpleTag handler that accepts takes three attributes of type * JspFragment and invokes then in a random order. */ public class ShuffleSimpleTag extends SimpleTagSupport { // No need for this to use SecureRandom private static final Random random = new Random(); private JspFragment fragment1; private JspFragment fragment2; private JspFragment fragment3; @Override public void doTag() throws JspException, IOException { switch(random.nextInt(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; } }