javax.servlet.jsp.tagext.VariableInfo#getVarName ( )源码实例Demo

protected String createBeanVarDeclarations(List<String> localBeans) {
    //TODO: the parser data contains no information about offsets and
    //therefore it is not possible to create proper java embeddings
    //inside bean declarations. We need a similar solution to what was
    //done for imports, see issue #161246
    StringBuilder beanDeclarationsBuff = new StringBuilder();

    PageInfo pageInfo = getPageInfo();

    if (pageInfo != null) {
        PageInfo.BeanData[] beanData = getBeanData();

        if (beanData != null) {
            for (PageInfo.BeanData bean : beanData) {
                if (!localBeans.contains(bean.getId())) {
                    beanDeclarationsBuff.append(bean.getClassName() + " " + bean.getId() + ";\n"); //NOI18N
                }
            }
        }

        if (pageInfo.isTagFile()) {
            for (TagAttributeInfo info : pageInfo.getTagInfo().getAttributes()) {
                if (info.getTypeName() != null) { // will be null e.g. for fragment attrs
                    if (!localBeans.contains(info.getName())) {
                        beanDeclarationsBuff.append(info.getTypeName() + " " + info.getName() + ";\n"); //NOI18N
                    }
                }
            }
        }
    }

    JspSyntaxSupport syntaxSupport = JspSyntaxSupport.get(doc);
    JspColoringData coloringData = getParserData().getColoringData();

    if (coloringData != null && coloringData.getPrefixMapper() != null) {
        Collection<String> prefixes = coloringData.getPrefixMapper().keySet();
        TagData fooArg = new TagData((Object[][]) null);

        for (String prefix : prefixes) {
            List<TagInfo> tags = syntaxSupport.getAllTags(prefix, false); //do not require fresh data - #146762

            for (TagInfo tag : tags) {
                // #146754 - prevent NPE:
                if (tag == null) {
                    continue;
                }
                VariableInfo vars[] = tag.getVariableInfo(fooArg);

                if (vars != null) {
                    for (VariableInfo var : vars) {
                        // Create Variable Definitions
                        if (var != null && var.getVarName() != null && var.getClassName() != null && var.getDeclare()) {
                            String varDeclaration = var.getClassName() + " " + var.getVarName() + ";\n";
                            beanDeclarationsBuff.append(varDeclaration);
                        }
                    }
                }
            }
        }
    }

    return beanDeclarationsBuff.toString();
}