javax.servlet.jsp.tagext.DynamicAttributes#javax.servlet.jsp.tagext.SimpleTag源码实例Demo

/**
 * If necessary, wraps a {@link SimpleTag} into a {@link Tag}.
 *
 * @param tag The tag to (possibly) wrap.
 * @return The wrapped tag, or the tag passed as parameter if it was not necessary.
 */
public static Tag wrapTag(JspTag tag) {
    if (tag == null) {
        return null;
    }
    if (tag instanceof Tag)
    {
        return (Tag) tag;
    }
    if (tag instanceof SimpleTag)
    {
        return new TagAdapter((SimpleTag) tag);
    }
    throw new VelocityToolsJspException(
            "Cannot get tag that is not a Tag nor a SimpleTag, class "
                    + tag.getClass().getCanonicalName());
}
 

/**
 * Test method for {@link org.apache.velocity.tools.view.jsp.jspimpl.JspUtils#executeSimpleTag(org.apache.velocity.context.InternalContextAdapter, org.apache.velocity.runtime.parser.node.Node, javax.servlet.jsp.PageContext, javax.servlet.jsp.tagext.SimpleTag)}.
 * @throws IOException If something goes wrong.
 * @throws JspException If something goes wrong.
 */
@Test
public void testExecuteSimpleTag() throws JspException, IOException
{
    InternalContextAdapter context = createMock(InternalContextAdapter.class);
    Node node = createMock(Node.class);
    PageContext pageContext = createMock(PageContext.class);
    SimpleTag tag = createMock(SimpleTag.class);
    ASTBlock block = createMock(ASTBlock.class);

    tag.setJspBody(isA(VelocityJspFragment.class));
    expect(node.jjtGetChild(1)).andReturn(block);
    tag.doTag();

    replay(context, node, pageContext, block, tag);
    JspUtils.executeSimpleTag(context, node, pageContext, tag);
    verify(context, node, pageContext, block, tag);
}
 

public CustomTag(String qName, String prefix, String localName,
        String uri, Attributes attrs, Attributes nonTaglibXmlnsAttrs,
        Attributes taglibAttrs, Mark start, Node parent,
        TagInfo tagInfo, Class<?> tagHandlerClass) {
    super(qName, localName, attrs, nonTaglibXmlnsAttrs, taglibAttrs,
            start, parent);

    this.uri = uri;
    this.prefix = prefix;
    this.tagInfo = tagInfo;
    this.tagFileInfo = null;
    this.tagHandlerClass = tagHandlerClass;
    this.customNestingLevel = makeCustomNestingLevel();
    this.childInfo = new ChildInfo();

    this.implementsIterationTag = IterationTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsBodyTag = BodyTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsTryCatchFinally = TryCatchFinally.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsSimpleTag = SimpleTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsDynamicAttributes = DynamicAttributes.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsJspIdConsumer = JspIdConsumer.class
            .isAssignableFrom(tagHandlerClass);
}
 

public CustomTag(String qName, String prefix, String localName,
        String uri, Attributes attrs, Attributes nonTaglibXmlnsAttrs,
        Attributes taglibAttrs, Mark start, Node parent,
        TagInfo tagInfo, Class<?> tagHandlerClass) {
    super(qName, localName, attrs, nonTaglibXmlnsAttrs, taglibAttrs,
            start, parent);

    this.uri = uri;
    this.prefix = prefix;
    this.tagInfo = tagInfo;
    this.tagHandlerClass = tagHandlerClass;
    this.customNestingLevel = makeCustomNestingLevel();
    this.childInfo = new ChildInfo();

    this.implementsIterationTag = IterationTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsBodyTag = BodyTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsTryCatchFinally = TryCatchFinally.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsSimpleTag = SimpleTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsDynamicAttributes = DynamicAttributes.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsJspIdConsumer = JspIdConsumer.class
            .isAssignableFrom(tagHandlerClass);
}
 

public CustomTag(String qName, String prefix, String localName,
        String uri, Attributes attrs, Attributes nonTaglibXmlnsAttrs,
        Attributes taglibAttrs, Mark start, Node parent,
        TagInfo tagInfo, Class<?> tagHandlerClass) {
    super(qName, localName, attrs, nonTaglibXmlnsAttrs, taglibAttrs,
            start, parent);

    this.uri = uri;
    this.prefix = prefix;
    this.tagInfo = tagInfo;
    this.tagHandlerClass = tagHandlerClass;
    this.customNestingLevel = makeCustomNestingLevel();
    this.childInfo = new ChildInfo();

    this.implementsIterationTag = IterationTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsBodyTag = BodyTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsTryCatchFinally = TryCatchFinally.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsSimpleTag = SimpleTag.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsDynamicAttributes = DynamicAttributes.class
            .isAssignableFrom(tagHandlerClass);
    this.implementsJspIdConsumer = JspIdConsumer.class
            .isAssignableFrom(tagHandlerClass);
}
 

public CustomTag(String jspVersion, String qName, String prefix,
                        String localName,
		 String uri, Attributes attrs,
		 Attributes nonTaglibXmlnsAttrs,
		 Attributes taglibAttrs,
		 Mark start, Node parent, TagInfo tagInfo,
		 Class tagHandlerClass) {
           super(qName, localName, attrs, nonTaglibXmlnsAttrs, taglibAttrs,
                 start, parent);

           this.jspVersion = Double.valueOf(jspVersion).doubleValue();
    this.uri = uri;
    this.prefix = prefix;
    this.tagInfo = tagInfo;
    this.tagHandlerClass = tagHandlerClass;
    this.customNestingLevel = makeCustomNestingLevel();
           this.childInfo = new ChildInfo();

    this.implementsIterationTag = 
	IterationTag.class.isAssignableFrom(tagHandlerClass);
    this.implementsBodyTag =
	BodyTag.class.isAssignableFrom(tagHandlerClass);
    this.implementsTryCatchFinally = 
	TryCatchFinally.class.isAssignableFrom(tagHandlerClass);
    this.implementsSimpleTag = 
	SimpleTag.class.isAssignableFrom(tagHandlerClass);
    this.implementsDynamicAttributes = 
	DynamicAttributes.class.isAssignableFrom(tagHandlerClass);
}
 

/**
 * Test method for {@link org.apache.velocity.tools.view.jsp.jspimpl.JspUtils#wrapTag(javax.servlet.jsp.tagext.JspTag)}.
 */
@Test
public void testWrapTag()
{
    Tag tag = createMock(Tag.class);
    SimpleTag simpleTag = createMock(SimpleTag.class);

    replay(tag, simpleTag);
    assertSame(tag, JspUtils.wrapTag(tag));
    assertSame(simpleTag, ((TagAdapter) JspUtils.wrapTag(simpleTag)).getAdaptee());
    verify(tag, simpleTag);
}
 

/**
 * Executes a {@link SimpleTag}.
 *
 * @param context The directive context.
 * @param node The main node of the directive.
 * @param pageContext The page context.
 * @param tag The tag to execute.
 * @throws JspException If something goes wrong.
 * @throws IOException If something goes wrong.
 */
public static void executeSimpleTag(InternalContextAdapter context,
        Node node, PageContext pageContext, SimpleTag tag)
        throws JspException, IOException
{
    tag.setJspBody(new VelocityJspFragment(pageContext, (ASTBlock) node
            .jjtGetChild(1), context));
    tag.doTag();
}