48 Citrix NetScaler Policy Configuration and Reference Guide
Compound Operations for Numbers
You can configure compound numeric expressions. For example, the following
expression returns a numeric value that is the sum of an HTTP header length and
a URL length:
http.req.header.length + http.req.url.length
The following table describes operators that you can use to configure compound
expressions for numeric data.
bool &&
bool This operator is a logical AND. When evaluating the components of the
compound expression, all components that are joined by the AND must
evaluate to TRUE. Following is an example:
http.req.method.eq(GET) &&
http.req.url.query.contains("viewReport &&
my_pagelabel")
bool || bool This operator is a logical OR. When evaluating the components of the
compound expression, if any component of the expression that is joined by
the OR evaluates to TRUE, the entire expression is TRUE. Following is an
example:
http.req.url.contains(".js") ||
http.res.header.("Content-
Type").contains("javascript")
!bool Performs a logical NOT on the expression.
Arithmetic Operations for Compound Advanced Expressions
Operator Description
Arithmetic operations on number
num + num Add the value of the expression on the left of the operator to the
value of the expression on the right. Following is an example:
http.req.content_length + http.req.url.length
num – num Subtract the value of the expression on the right of the operator from
the value of the expression on the left.
num * num Multiply the value of the expression on the left of the operator with
the value of the expression on the right. Following is an example:
client.interface.rxthroughput * 9
num / num Divide the value of the expressio n on the left of the operator by the
value of the expression on the right.
String-Based Operations for Compound Advanced Expressions
All string operations