public void checkArguments(StaticContext env) throws XPathException {
if (checked) return;
checked = true;
super.checkArguments(env);
Optimizer opt = env.getConfiguration().getOptimizer();
argument[1] = ExpressionTool.unsorted(opt, argument[1], false);
if (argument[0] instanceof StringValue) {
// common case, key name is supplied as a constant
try {
keyFingerprint =
((ExpressionContext) env)
.getFingerprint(((StringValue) argument[0]).getStringValue(), false);
} catch (XPathException e) {
StaticError err =
new StaticError(
"Error in key name "
+ ((StringValue) argument[0]).getStringValue()
+ ": "
+ e.getMessage());
err.setLocator(this);
err.setErrorCode("XTDE1260");
throw err;
}
if (keyFingerprint == -1) {
StaticError err =
new StaticError(
"Key " + ((StringValue) argument[0]).getStringValue() + " has not been defined");
err.setLocator(this);
err.setErrorCode("XTDE1260");
throw err;
}
} else {
// we need to save the namespace context
nsContext = env.getNamespaceResolver();
}
}
protected static void checkContentSequence(
StaticContext env, Expression content, int validation, SchemaType type)
throws XPathException {
Expression[] components;
if (content instanceof Block) {
components = ((Block) content).getChildren();
} else {
components = new Expression[] {content};
}
int elementCount = 0;
boolean isXSLT = content.getHostLanguage() == Configuration.XSLT;
TypeHierarchy th = env.getConfiguration().getTypeHierarchy();
for (int i = 0; i < components.length; i++) {
ItemType it = components[i].getItemType(th);
if (it instanceof NodeTest) {
int possibleNodeKinds = ((NodeTest) it).getNodeKindMask();
if (possibleNodeKinds == 1 << Type.ATTRIBUTE) {
XPathException de =
new XPathException("Cannot create an attribute node whose parent is a document node");
de.setErrorCode(isXSLT ? "XTDE0420" : "XPTY0004");
de.setLocator(components[i]);
throw de;
} else if (possibleNodeKinds == 1 << Type.NAMESPACE) {
XPathException de =
new XPathException("Cannot create a namespace node whose parent is a document node");
de.setErrorCode(isXSLT ? "XTDE0420" : "XQTY0024");
de.setLocator(components[i]);
throw de;
}
if (possibleNodeKinds == 1 << Type.ELEMENT) {
elementCount++;
if (elementCount > 1
&& (validation == Validation.STRICT
|| validation == Validation.LAX
|| type != null)) {
XPathException de =
new XPathException("A valid document must have only one child element");
if (isXSLT) {
de.setErrorCode("XTTE1550");
} else {
de.setErrorCode("XQDY0061");
}
de.setLocator(components[i]);
throw de;
}
if (validation == Validation.STRICT && components[i] instanceof FixedElement) {
SchemaDeclaration decl =
env.getConfiguration()
.getElementDeclaration(
((FixedElement) components[i]).getNameCode(null) & NamePool.FP_MASK);
if (decl != null) {
((FixedElement) components[i])
.getContentExpression()
.checkPermittedContents(decl.getType(), env, true);
}
}
}
}
}
}
