Class | Needle::LoggingInterceptor |
In: |
lib/needle/logging-interceptor.rb
|
Parent: | Object |
A LoggingInterceptor is an interceptor object that logs method invocations and exceptions. It includes the IncludeExclude functionality.
Create a new LoggingInterceptor for the given service point, with the given list of include and exclude patterns. The logger object will be created as well, named with the service point’s full name.
# File lib/needle/logging-interceptor.rb, line 29 29: def initialize( point, parms ) 30: @log = point.container.logs.get( point.fullname ) 31: 32: @includes = build_map( parms[ :include ] ) 33: @excludes = build_map( parms[ :exclude ] ) 34: end
Processes a method invocation context. If the current log has debugging activated, and the requested method is not excluded by the interceptor’s exclude and include patterns, then a message will be written for the method’s invocation, its return code, and any exception that is thrown.
# File lib/needle/logging-interceptor.rb, line 41 41: def process( chain, context ) 42: if @log.debug? && match( context ) 43: args = context.args.map { |i| i.inspect } .join( ', ' ) 44: @log.debug "#{context.sym}( #{args} )" 45: 46: begin 47: result = chain.process_next( context ) 48: rescue Exception => e 49: @log.debug "#{context.sym} raised #{e.message.inspect} (#{e.class})" 50: raise 51: end 52: 53: @log.debug "#{context.sym} => #{result.inspect}" 54: return result 55: else 56: return chain.process_next( context ) 57: end 58: end