/*
* Appends the page directive with the given attributes to the XML
* view.
*
* Since the import attribute of the page directive is the only page
* attribute that is allowed to appear multiple times within the same
* document, and since XML allows only single-value attributes,
* the values of multiple import attributes must be combined into one,
* separated by comma.
*
* If the given page directive contains just 'contentType' and/or
* 'pageEncoding' attributes, we ignore it, as we've already appended
* a page directive containing just these two attributes.
*/
private void appendPageDirective(Node.PageDirective n) {
boolean append = false;
Attributes attrs = n.getAttributes();
int len = (attrs == null) ? 0 : attrs.getLength();
for (int i = 0; i < len; i++) {
@SuppressWarnings("null") // If attrs==null, len == 0
String attrName = attrs.getQName(i);
if (!"pageEncoding".equals(attrName) && !"contentType".equals(attrName)) {
append = true;
break;
}
}
if (!append) {
return;
}
buf.append("<").append(n.getQName());
buf.append("\n");
// append jsp:id
buf.append(" ").append(jspIdPrefix).append(":id").append("=\"");
buf.append(jspId++).append("\"\n");
// append remaining attributes
for (int i = 0; i < len; i++) {
@SuppressWarnings("null") // If attrs==null, len == 0
String attrName = attrs.getQName(i);
if ("import".equals(attrName)
|| "contentType".equals(attrName)
|| "pageEncoding".equals(attrName)) {
/*
* Page directive's 'import' attribute is considered
* further down, and its 'pageEncoding' and 'contentType'
* attributes are ignored, since we've already appended
* a new page directive containing just these two
* attributes
*/
continue;
}
String value = attrs.getValue(i);
buf.append(" ").append(attrName).append("=\"");
buf.append(JspUtil.getExprInXml(value)).append("\"\n");
}
if (n.getImports().size() > 0) {
// Concatenate names of imported classes/packages
boolean first = true;
ListIterator<String> iter = n.getImports().listIterator();
while (iter.hasNext()) {
if (first) {
first = false;
buf.append(" import=\"");
} else {
buf.append(",");
}
buf.append(JspUtil.getExprInXml(iter.next()));
}
buf.append("\"\n");
}
buf.append("/>\n");
}
/*
* extends
*/
public void setExtends(String value, Node.PageDirective n) {
xtends = value;
/*
* If page superclass is top level class (i.e. not in a package)
* explicitly import it. If this is not done, the compiler will assume
* the extended class is in the same pkg as the generated servlet.
*/
if (value.indexOf('.') < 0) n.addImport(value);
}
