thomasmueller commented on code in PR #3139:
URL: https://github.com/apache/jackrabbit-oak/pull/3139#discussion_r4082840212
##########
oak-search/src/main/java/org/apache/jackrabbit/oak/plugins/index/search/util/FunctionIndexProcessor.java:
##########
@@ -105,11 +122,59 @@ public static String[] getFunctionCode(String
functionDescription) {
if (functionDescription == null) {
return null;
}
- return functionDescription.split("\\*");
+ ArrayList<String> tokens = new ArrayList<>();
+ StringBuilder current = new StringBuilder();
+ boolean inLiteral = false;
+ for (int i = 0; i < functionDescription.length(); i++) {
+ char c = functionDescription.charAt(i);
+ if (inLiteral) {
+ current.append(c);
+ if (c == '\'') {
+ if (i + 1 < functionDescription.length() &&
functionDescription.charAt(i + 1) == '\'') {
+ // an escaped quote within the literal
+ current.append('\'');
+ i++;
+ } else {
+ inLiteral = false;
+ }
+ }
+ } else if (c == '\'') {
+ inLiteral = true;
+ current.append(c);
+ } else if (c == '*') {
+ tokens.add(current.toString());
+ current.setLength(0);
+ } else {
+ current.append(c);
+ }
+ }
+ tokens.add(current.toString());
+ return tokens.toArray(new String[0]);
}
private static PropertyState calculateFunction(String functionName,
Deque<PropertyState> stack)
{
+ if ("if".equals(functionName)) {
+ // if(condition, trueValue, falseValue)
+ PropertyState condition = stack.pop();
+ PropertyState trueValue = stack.pop();
+ PropertyState falseValue = stack.pop();
+ return isTruthy(condition) ? trueValue : falseValue;
+ }
+ if ("exists".equals(functionName)) {
+ PropertyState operand = stack.pop();
+ return PropertyStates.createProperty("value",
+ operand != EMPTY_PROPERTY_STATE, Type.BOOLEAN);
+ }
+ if ("op".equals(functionName)) {
+ // op(a, operator, b); operator is typically a quoted string
+ // literal, but can be any operand that evaluates to one of the
+ // known operator strings (e.g. a property reference)
+ PropertyState a = stack.pop();
+ PropertyState operator = stack.pop();
+ PropertyState b = stack.pop();
+ return calculateOp(a, operator, b);
+ }
PropertyState ps = stack.pop();
Review Comment:
I changed the code such that all new code is at the top, the rest is
unchanged.
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