public boolean evaluateConfirmationExpression(
UserType user,
ShadowType shadow,
ExpressionType expressionType,
Task task,
OperationResult result)
throws ExpressionEvaluationException, ObjectNotFoundException, SchemaException {
Validate.notNull(user, "User must not be null.");
Validate.notNull(shadow, "Resource object shadow must not be null.");
Validate.notNull(expressionType, "Expression must not be null.");
Validate.notNull(result, "Operation result must not be null.");
ResourceType resource = resolveResource(shadow, result);
ExpressionVariables variables = getDefaultXPathVariables(user, shadow, resource);
String shortDesc = "confirmation expression for " + resource.asPrismObject();
PrismPropertyDefinition<Boolean> outputDefinition =
new PrismPropertyDefinition<>(
ExpressionConstants.OUTPUT_ELMENT_NAME, DOMUtil.XSD_BOOLEAN, prismContext);
Expression<PrismPropertyValue<Boolean>, PrismPropertyDefinition<Boolean>> expression =
expressionFactory.makeExpression(expressionType, outputDefinition, shortDesc, task, result);
ExpressionEvaluationContext params =
new ExpressionEvaluationContext(null, variables, shortDesc, task, result);
PrismValueDeltaSetTriple<PrismPropertyValue<Boolean>> outputTriple =
ModelExpressionThreadLocalHolder.evaluateExpressionInContext(
expression, params, task, result);
Collection<PrismPropertyValue<Boolean>> nonNegativeValues = outputTriple.getNonNegativeValues();
if (nonNegativeValues == null || nonNegativeValues.isEmpty()) {
throw new ExpressionEvaluationException(
"Expression returned no value (" + nonNegativeValues.size() + ") in " + shortDesc);
}
if (nonNegativeValues.size() > 1) {
throw new ExpressionEvaluationException(
"Expression returned more than one value ("
+ nonNegativeValues.size()
+ ") in "
+ shortDesc);
}
PrismPropertyValue<Boolean> resultpval = nonNegativeValues.iterator().next();
if (resultpval == null) {
throw new ExpressionEvaluationException(
"Expression returned no value (" + nonNegativeValues.size() + ") in " + shortDesc);
}
Boolean resultVal = resultpval.getValue();
if (resultVal == null) {
throw new ExpressionEvaluationException(
"Expression returned no value (" + nonNegativeValues.size() + ") in " + shortDesc);
}
return resultVal;
}
public String evaluateExpression(
ShadowType shadow,
ExpressionType expressionType,
String shortDesc,
Task task,
OperationResult result)
throws ExpressionEvaluationException, ObjectNotFoundException, SchemaException {
Validate.notNull(shadow, "Resource object shadow must not be null.");
Validate.notNull(expressionType, "Expression must not be null.");
Validate.notNull(result, "Operation result must not be null.");
ResourceType resource = resolveResource(shadow, result);
ExpressionVariables variables = getDefaultXPathVariables(null, shadow, resource);
PrismPropertyDefinition<String> outputDefinition =
new PrismPropertyDefinition<>(
ExpressionConstants.OUTPUT_ELMENT_NAME, DOMUtil.XSD_STRING, prismContext);
Expression<PrismPropertyValue<String>, PrismPropertyDefinition<String>> expression =
expressionFactory.makeExpression(expressionType, outputDefinition, shortDesc, task, result);
ExpressionEvaluationContext params =
new ExpressionEvaluationContext(null, variables, shortDesc, task, result);
PrismValueDeltaSetTriple<PrismPropertyValue<String>> outputTriple =
ModelExpressionThreadLocalHolder.evaluateExpressionInContext(
expression, params, task, result);
if (outputTriple == null) {
return null;
}
Collection<PrismPropertyValue<String>> nonNegativeValues = outputTriple.getNonNegativeValues();
if (nonNegativeValues == null || nonNegativeValues.isEmpty()) {
return null;
}
if (nonNegativeValues.size() > 1) {
throw new ExpressionEvaluationException(
"Expression returned more than one value ("
+ nonNegativeValues.size()
+ ") in "
+ shortDesc);
}
return nonNegativeValues.iterator().next().getValue();
}