Examples of javax.servlet.jsp.tagext.TagSupport

javax.servlet.jsp.tagext.TagSupport
A base class for defining new tag handlers implementing Tag.
The TagSupport class is a utility class intended to be used as the base class for new tag handlers. The TagSupport class implements the Tag and IterationTag interfaces and adds additional convenience methods including getter methods for the properties in Tag. TagSupport has one static method that is included to facilitate coordination among cooperating tags.
Many tag handlers will extend TagSupport and only redefine a few methods.

   public int doEndTag()throws JspTagException {
      try {
         Definition definition = new Definition();
         HashMap screens = null;
         ArrayList params = null;
         TagSupport screen = null;


         screens = (HashMap) pageContext.getAttribute("screens", pageContext.APPLICATION_SCOPE);
         if (screens != null) { 
            params = (ArrayList) screens.get(screenId);
         }

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        }


        // Test for getParent method in TagSupport


        if ( "getParent".equalsIgnoreCase ( this.getAtt2() ) ) {
            TagSupport ts = new TagSupport();
            setParent( this );
            Tag tt = getParent();
            if ( tt == this ) {
                TestString = TestString + "Pass";
            } else {

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  public void testHasAncestorOfTypeWhereAncestorTagIsNotATagType() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        assertFalse(TagUtils.hasAncestorOfType(
            new TagSupport(), String.class));
      }
    }.runTest();
  }

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  }


  public void testHasAncestorOfTypeWithNullAncestorTagClassArgument() throws Exception {
    new AssertThrows(IllegalArgumentException.class) {
      public void test() throws Exception {
        assertFalse(TagUtils.hasAncestorOfType(new TagSupport(), null));
      }
    }.runTest();
  }

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  public void testJSPTag() throws Exception {
    Map<String, Object> attributes = facesContext.getViewRoot().getAttributes();
    
    Object ajaxBean = new Object();
    TagSupport ajaxTag = setupTag("coolBean", ajaxBean, true);
    
    ajaxTag.doStartTag();
    assertSame(ajaxBean, attributes.get(AjaxPhaseListener.AJAX_BEAN_PREFIX + "coolBean"));


    Object bean = new Object();
    TagSupport tag = setupTag("beBean", bean, false);
    
    tag.doStartTag();
    assertSame(bean, attributes.get(AjaxPhaseListener.VIEW_BEAN_PREFIX + "beBean"));
  }

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    TagUtils.getScope(null);
  }


  @Test(expected = IllegalArgumentException.class)
  public void hasAncestorOfTypeWhereAncestorTagIsNotATagType() throws Exception {
    assertFalse(TagUtils.hasAncestorOfType(new TagSupport(), String.class));
  }

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    assertFalse(TagUtils.hasAncestorOfType(null, TagSupport.class));
  }


  @Test(expected = IllegalArgumentException.class)
  public void hasAncestorOfTypeWithNullAncestorTagClassArgument() throws Exception {
    assertFalse(TagUtils.hasAncestorOfType(new TagSupport(), null));
  }

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     PageContextImpl pageContext;
    try {
      pageContext = new PageContextImpl(request, null);
      JspWriter out = pageContext.getOut();
      TagSupport js = getJspTagSupport(request);
      
      js.setPageContext(pageContext);
      js.setParent(null);


      int eval_html = js.doStartTag();
        // if (js.doEndTag() == Tag.SKIP_PAGE)


          xmlJScripts.appendChild(  document.createCDATASection( out.toString() )  );


      return xmlJScripts;

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    }


    public void testJSPTag() throws Exception {
        Map<String, Object> attributes = facesContext.getViewRoot().getAttributes();
        Object ajaxBean = new Object();
        TagSupport ajaxTag = setupTag("coolBean", ajaxBean, true);


        ajaxTag.doStartTag();
        assertSame(ajaxBean, attributes.get(AjaxPhaseListener.AJAX_BEAN_PREFIX + "coolBean"));


        Object bean = new Object();
        TagSupport tag = setupTag("beBean", bean, false);


        tag.doStartTag();
        assertSame(bean, attributes.get(AjaxPhaseListener.VIEW_BEAN_PREFIX + "beBean"));
    }

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