Java BodyTagSupport.findAncestorWithClass方法代码示例

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * {@inheritDoc}
 */
@Override
public int doStartTag() throws JspException {

    ListCommand command = ListTagUtil.getCurrentCommand(this, pageContext);
    ListTag parent = (ListTag) BodyTagSupport.findAncestorWithClass(this,
            ListTag.class);
    listName = parent.getUniqueName();
    int retval = BodyTagSupport.SKIP_BODY;
    setupRhnSet();
    if (command.equals(ListCommand.ENUMERATE)) {
        parent.addColumn();
        retval = BodyTagSupport.EVAL_PAGE;
    }
    else if (command.equals(ListCommand.COL_HEADER)) {
        renderHeader(parent);
        retval = BodyTagSupport.EVAL_PAGE;
    }
    else if (command.equals(ListCommand.RENDER)) {
        renderCheckbox();
    }
    return retval;
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * renders
 * //onclick="checkbox_clicked(this, '$rhnSet')"
 *
 */
private String getOnClickScript(String funcName, String boxName) {
    Object current = getCurrent();
    Object parent = getParentObject();
    String childIds = "[]";
    String memberIds = "[]";
    String parentId = "";
    ListTag parentTag = (ListTag)
        BodyTagSupport.findAncestorWithClass(this, ListTag.class);

    if (RhnListTagFunctions.isExpandable(current)) {
        childIds = getChildIds(current);
    }
    else {
        parentId = getParentId(current, parent);
        memberIds = getMemberIds(current, parent);
    }

    return String.format(CHECKBOX_CLICKED_SCRIPT, funcName, boxName,
                        rhnSet,  makeSelectAllCheckboxId(listName),
                        childIds, memberIds, parentId,
                        parentTag.isParentAnElement());

}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * {@inheritDoc}
 */
@Override
public int doStartTag() throws JspException {

    ListCommand command = ListTagUtil.getCurrentCommand(this, pageContext);
    ListTag parent = (ListTag) BodyTagSupport.findAncestorWithClass(this,
            ListTag.class);
    listName = parent.getUniqueName();
    int retval = BodyTagSupport.SKIP_BODY;

    if (command.equals(ListCommand.ENUMERATE)) {
        parent.addColumn();
        renderHiddenField();
        retval = BodyTagSupport.EVAL_PAGE;
    }
    else if (command.equals(ListCommand.COL_HEADER)) {
        renderHeader(parent);
        retval = BodyTagSupport.EVAL_PAGE;
    }
    else if (command.equals(ListCommand.RENDER)) {
        render(valueExpr);
    }
    return retval;
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
private ListDecorator getDecorator(String decName) throws JspException {
    if (decName != null) {
        ClassLoader cl = Thread.currentThread().getContextClassLoader();
        try {
            if (decName.indexOf('.') == -1) {
                decName = "com.redhat.rhn.frontend.taglibs.list.decorators." +
                                                        decName;
            }
            ListDecorator dec = (ListDecorator) cl.loadClass(decName)
                    .newInstance();
            ListSetTag parent = (ListSetTag) BodyTagSupport
                    .findAncestorWithClass(this, ListSetTag.class);
            dec.setEnvironment(pageContext, parent, getUniqueName());
            return dec;
        }
        catch (Exception e) {
            String msg = "Exception while adding Decorator [" + decName + "]";
            throw new JspException(msg, e);
        }
    }
    return null;

}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * ${@inheritDoc}
 */
public int doStartTag() throws JspException {
    ListCommand command = ListTagUtil.getCurrentCommand(this, pageContext);
    ListTag parent = (ListTag) BodyTagSupport.findAncestorWithClass(this,
            ListTag.class);
    int retval = BodyTagSupport.SKIP_BODY;
    currentSortDir = fetchSortDir();

    if (command.equals(ListCommand.ENUMERATE)) {
        parent.addColumn();
        retval = BodyTagSupport.EVAL_PAGE;
        if (isSortable()) {
            parent.setSortable(true);
        }
    }
    else if (command.equals(ListCommand.COL_HEADER)) {
        renderHeader();
        retval = BodyTagSupport.EVAL_PAGE;
    }
    else if (command.equals(ListCommand.RENDER)) {
        if (isBound) {
            renderBound();
            retval = BodyTagSupport.SKIP_BODY;
        }
        else {
            renderUnbound();
            retval = BodyTagSupport.EVAL_BODY_INCLUDE;
        }
    }
    return retval;
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * Gets the active sort direction for the column, or empty string if the list is not
 * sorted on this column.
 *
 * @return Active sort direction for the column
 */
private String fetchSortDir() {
    String sortName = getSortName();

    ListTag parent = (ListTag) BodyTagSupport.findAncestorWithClass(this,
            ListTag.class);

    if (isAlphaBarSelected() && parent.getAlphaBarColumn().equals(sortName)) {
        return RequestContext.SORT_ASC;
    }

    String requestLabel = pageContext.getRequest().
            getParameter(ListTagUtil.makeSortByLabel(getListName()));

    if (requestLabel != null && !requestLabel.equals(sortName)) {
        return "";
    }

    String sortDirectionKey = ListTagUtil.makeSortDirLabel(getListName());
    String sortDir = pageContext.getRequest().getParameter(sortDirectionKey);

    if (StringUtils.isBlank(sortDir)) {
        sortDir = defaultSortDir;
    }

    return StringUtils.isEmpty(sortDir) ? "" : sortDir;
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
protected void renderUnbound() throws JspException {
    ListTag parent = (ListTag)
        BodyTagSupport.findAncestorWithClass(this, ListTag.class);
    if (attributeName != null) {
        Object bean = parent.getCurrentObject();
        String value = ListTagUtil.getBeanValue(bean, attributeName);
        pageContext.setAttribute("beanValue", value, PageContext.PAGE_SCOPE);
    }
    writeStartingTd();
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
protected void renderBound() throws JspException {
    ListTag parent = (ListTag)
        BodyTagSupport.findAncestorWithClass(this, ListTag.class);
    Object bean = parent.getCurrentObject();
    writeStartingTd();
    ListTagUtil.write(pageContext, ListTagUtil.
                                    getBeanValue(bean, attributeName));
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
private void setupColumnFilter() throws JspException {
    ListTag parent = (ListTag)
            BodyTagSupport.findAncestorWithClass(this, ListTag.class);
    String key = headerKey;
    if (!StringUtils.isBlank(filterMessage)) {
        key = filterMessage;
    }
    ColumnFilter f = new ColumnFilter(key, filterAttr);
    parent.setColumnFilter(f);
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
private void verifyEnvironment() throws JspException {
    if (BodyTagSupport.findAncestorWithClass(this, this.getClass()) != null) {
        throw new JspException("ListSet tags may not be nested.");
    }
    if (pageContext.getRequest().getAttribute("parentUrl") == null) {
        throw new JspException("Request attribute 'parentUrl' must be set.");
    }
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * {@inheritDoc}
 */
public int doEndTag() throws JspException {
    ListCommand command = ListTagUtil.getCurrentCommand(this, pageContext);
    if (command.equals(ListCommand.ENUMERATE)) {
        if (!StringUtils.isBlank(name)) {
            ListTag parent = (ListTag) BodyTagSupport.findAncestorWithClass(this,
                    ListTag.class);

            try {
                ClassLoader cl = Thread.currentThread().getContextClassLoader();

                if (name.indexOf('.') == -1) {
                    name = "com.redhat.rhn.frontend.taglibs.list.row." +
                        name;
                }
                RowRenderer row = (RowRenderer) cl.loadClass(name)
                        .newInstance();
                if (!StringUtils.isEmpty(classes)) {
                    row.setRowClasses(classes);
                }
                parent.setRowRenderer(row);

            }
            catch (Exception e) {
                String msg = "Exception while adding Decorator [" + name + "]";
                throw new JspException(msg, e);
            }
        }
    }
    return super.doEndTag();
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * Locates the current ListCommand
 * @param caller tag calling the method
 * @param ctx caller's page context
 * @return ListCommand if found, otherwise null
 */
public static ListCommand getCurrentCommand(Tag caller, PageContext ctx) {
    ListTag parent = null;
    if (!(caller instanceof ListTag)) {
        parent = (ListTag) BodyTagSupport.findAncestorWithClass(caller, ListTag.class);
    }
    else {
        parent = (ListTag) caller;
    }
    if (parent != null) {
        return (ListCommand) ctx.getAttribute(parent.getUniqueName() + "_cmd");
    }
    return null;
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
private boolean isSelected() {
    if (!StringUtils.isBlank(selectExpr)) {
        return selectExpr.equalsIgnoreCase("true");
    }

    ListTag parent = (ListTag)BodyTagSupport.
                    findAncestorWithClass(this, ListTag.class);

    String selectionsKey = ListSessionSetHelper.makeSelectionsName(parent.getName());
    Map selections = (Map)pageContext.getRequest().getAttribute(selectionsKey);

    return selections != null && selections.containsKey(valueExpr);
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
/**
 * {@inheritDoc}
 */
public int doEndTag() throws JspException {
    ListCommand command = ListTagUtil.getCurrentCommand(this, pageContext);
    if (command.equals(ListCommand.ENUMERATE)) {
        if (!StringUtils.isBlank(name)) {
            ListTag parent = (ListTag) BodyTagSupport.findAncestorWithClass(this,
                    ListTag.class);
            parent.addDecorator(name);
        }
    }
    return super.doEndTag();
}
 

import javax.servlet.jsp.tagext.BodyTagSupport; //导入方法依赖的package包/类
protected TransactionLogTag getTransactionLogParent()
{
	return (TransactionLogTag)BodyTagSupport.findAncestorWithClass(this, TransactionLogTag.class);
}