Example usage for javax.servlet.jsp.tagext BodyTag doInitBody

Introduction

In this page you can find the example usage for javax.servlet.jsp.tagext BodyTag doInitBody.

Prototype

void doInitBody() throws JspException;

Source Link

Document

Prepare for evaluation of the body.

Usage

From source file:de.micromata.genome.gwiki.page.gspt.TagSupport.java

/**
 * @return true if body should be included
 *//*  w w w.  java 2  s  . c o m*/
public static boolean initTag(Tag tag, List<Object> attributes, ChildPageContext ctx) throws Exception {
    Tag ptag = ctx.getCurrentTag();
    if (log.isDebugEnabled())
        log.debug("Init tag: " + tag.getClass().getName());

    PageContext pctx = ctx;
    if (ctx.isUseParentTagContext() == true)
        pctx = ctx.getParentPageContext();
    tag.setPageContext(pctx);
    tag.setParent(ptag);
    attributes = evalAttributes(tag, attributes, ctx);
    setAttributes(tag, attributes, ctx);
    ctx.setCurrentTag(tag);
    int r = tag.doStartTag();
    ctx.getTagStack().push(new Pair<Tag, Integer>(tag, r));
    JspWriter oout = pctx.getOut();
    ctx.setInternalGroovyOut(createPrintWriter(oout));
    if (r != javax.servlet.jsp.tagext.Tag.SKIP_BODY && r != javax.servlet.jsp.tagext.Tag.EVAL_BODY_INCLUDE
            && tag instanceof BodyTag) {

        BodyTag btag = (BodyTag) tag;

        JspWriter out = pctx.pushBody();
        PrintWriterPatched newPout = createPrintWriter(out, true);
        ctx.setInternalGroovyOut(newPout);

        btag.setBodyContent((javax.servlet.jsp.tagext.BodyContent) out);
        btag.doInitBody();
    }
    boolean ret = r != javax.servlet.jsp.tagext.Tag.SKIP_BODY;
    if (log.isDebugEnabled())
        log.debug("Init tag: " + tag.getClass().getName() + ": " + ret);
    return ret;
}

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From source file:org.apache.cactus.extension.jsp.JspTagLifecycle.java

/**
 * Internal method to invoke a tag without doing exception handling.
 * //from  w w w . j av a 2 s .  c  o m
 * @throws JspException If the tag throws an exception
 * @throws IOException If an error occurs when reading or writing the body
 *         content
 */
private void invokeInternal() throws JspException, IOException {
    int status = this.tag.doStartTag();
    if (this.tag instanceof IterationTag) {
        if (status != Tag.SKIP_BODY) {
            BodyContent body = null;
            try {
                IterationTag iterationTag = (IterationTag) this.tag;
                if ((status == BodyTag.EVAL_BODY_BUFFERED) && (this.tag instanceof BodyTag)) {
                    BodyTag bodyTag = (BodyTag) this.tag;
                    body = pageContext.pushBody();
                    if (log.isDebugEnabled()) {
                        log.debug("Pushed body content [" + body.getString() + "]");
                    }
                    bodyTag.setBodyContent(body);
                    bodyTag.doInitBody();
                }
                int iteration = 0;
                do {
                    fireEvalBody(iteration, body);
                    if (log.isDebugEnabled()) {
                        log.debug("Body evaluated for the [" + iteration + "] time");
                    }
                    status = iterationTag.doAfterBody();
                    iteration++;
                } while (status == IterationTag.EVAL_BODY_AGAIN);
                if (log.isDebugEnabled()) {
                    log.debug("Body skipped");
                }
                fireSkipBody();
            } finally {
                if (body != null) {
                    if (log.isDebugEnabled()) {
                        log.debug("Popping body content [" + body.getString() + "]");
                    }
                    pageContext.popBody();
                    body = null;
                }
            }
        } else {
            if (log.isDebugEnabled()) {
                log.debug("Body skipped");
            }
            fireSkipBody();
        }
    }
    status = tag.doEndTag();
}

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From source file:org.seasar.mayaa.impl.engine.processor.JspProcessor.java

public void doInitChildProcess() {
    Tag tag = getLoadedTag();/*from  w  ww.  ja v a2s  .c  o m*/
    if (tag instanceof BodyTag) {
        BodyTag bodyTag = (BodyTag) tag;
        try {
            bodyTag.doInitBody();
        } catch (JspException e) {
            throw createJspRuntimeException(getOriginalNode(), getInjectedNode(), e);
        }
    } else {
        throw new IllegalStateException();
    }
}

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