private boolean eval(PredicateContext ctx) {
if (CriteriaType.EXISTS == criteriaType) {
boolean exists = ((Boolean) right);
try {
Configuration c =
Configuration.builder()
.jsonProvider(ctx.configuration().jsonProvider())
.options(Option.REQUIRE_PROPERTIES)
.build();
((Path) left).evaluate(ctx.item(), ctx.root(), c).getValue();
return exists;
} catch (PathNotFoundException e) {
return !exists;
}
} else {
try {
Object leftVal = evaluateIfPath(left, ctx);
Object rightVal = evaluateIfPath(right, ctx);
return criteriaType.eval(rightVal, leftVal, ctx);
} catch (ValueCompareException e) {
return false;
} catch (PathNotFoundException e) {
return false;
}
}
}
private Object evaluateIfPath(Object target, PredicateContext ctx) {
Object res = target;
if (res instanceof Path) {
Path leftPath = (Path) target;
if (ctx instanceof PredicateContextImpl) {
// This will use cache for document ($) queries
PredicateContextImpl ctxi = (PredicateContextImpl) ctx;
res = ctxi.evaluate(leftPath);
} else {
Object doc = leftPath.isRootPath() ? ctx.root() : ctx.item();
res = leftPath.evaluate(doc, ctx.root(), ctx.configuration()).getValue();
}
}
return res;
}
@SuppressWarnings("unchecked")
@Override
public boolean apply(PredicateContext ctx) {
final Map<String, Object> items = ctx.item(Map.class);
if (items != null) {
for (Map.Entry<String, Object> entry : items.entrySet()) {
final String value = entry.getValue().toString();
if (isVariable(value)) {
final String variable = extractVariable(value);
final Object newValue = lookupContext.read(variable);
entry.setValue(newValue);
}
}
return isRootElement(items);
}
return false;
}