@Override
protected String parseFromInternal(String expression) {
// first the boolean operator for this clause
if (expression.startsWith("|| ")) {
m_isAnOr = true;
}
if (expression.startsWith("|| ") || expression.startsWith("&& ")) {
// strip the boolean operator
expression = expression.substring(3, expression.length());
}
if (expression.charAt(0) == '!') {
setNegated(true);
expression = expression.substring(1, expression.length());
}
if (expression.charAt(0) != '[') {
throw new IllegalArgumentException("Was expecting a \"[\" to start this ExpressionClause!");
}
expression = expression.substring(1, expression.length());
m_lhsAttributeName = expression.substring(0, expression.indexOf("@EC@"));
expression = expression.substring(expression.indexOf("@EC@") + 4, expression.length());
String oppName = expression.substring(0, expression.indexOf("@EC@"));
expression = expression.substring(expression.indexOf("@EC@") + 4, expression.length());
for (ExpressionType n : ExpressionType.values()) {
if (n.toString().equals(oppName)) {
m_operator = n;
break;
}
}
if (expression.startsWith("@@")) {
// rhs is an attribute
expression = expression.substring(2, expression.length()); // strip off
// "@@"
m_rhsIsAttribute = true;
}
m_rhsOperand = expression.substring(0, expression.indexOf(']'));
expression =
expression.substring(expression.indexOf(']') + 1, expression.length()); // remove "]"
if (expression.charAt(0) == ' ') {
expression = expression.substring(1, expression.length());
}
return expression;
}
