cgrates/structmatcher

structmatcher

Query language for matching structures

The StructMatcher type will parse a condition string and match it against a given structure.

The condition syntax is a json encoded string similar to mongodb query language.

Examples:

• {"Weight":{"*gt":50}} checks for a balance with weight greater than 50
• {"*or":[{"Value":{"*eq":0}},{"Value":{"*gte":100}}] checks for a balance with value equal to 0 or equal or highr than 100

Available operators:

• *eq: equal
• *gt: greater than
• *gte: greater or equal than
• *lt: less then
• *lte: less or equal than
• *exp: expired
• *or: logical or
• *and: logical and
• *has: receives a list of elements and checks that the elements are present in the specified field (StringMap type)

Equal (*eq) and local and (*and) operators are implicit for shortcuts. In this way:

{"*and":[{"Value":{"*eq":3}},{"Weight":{"*eq":10}}]} is equivalent to: {"Value":3, "Weight":10}.