Package ca.uqac.lif.cep.apache

Class ParseCommonLog

  • All Implemented Interfaces:
    ca.uqac.lif.azrael.Printable, ca.uqac.lif.azrael.Readable, ca.uqac.lif.cep.Duplicable, ca.uqac.lif.cep.functions.DuplicableFunction
    public class ParseCommonLog
extends ca.uqac.lif.cep.functions.UnaryFunction<java.lang.String,​HttpRequest>
    Parses a line of an Apache log in the common log format and creates an HttpRequest object with it.
    Author:
    Sylvain Hallé

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static ParseCommonLog instance  
      protected java.util.Calendar m_calendar
      An instance of calendar to convert dates into timestamps
      protected static java.util.regex.Pattern s_linePattern
      The pattern to parse a line of the log
      protected static java.util.regex.Pattern s_urlPattern
      The pattern to parse a URL

      • Fields inherited from class ca.uqac.lif.cep.functions.Function

        s_maxInputArity

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      HttpRequest getValue​(java.lang.String log_line)  
      static java.lang.String methodToString​(HttpRequest.Method m)
      Creates a string out of a method
      static java.util.Map<java.lang.String,​java.lang.String> parseParameters​(java.lang.String param_string)  
      static long parseTime​(java.util.Calendar calendar, java.lang.String time_string)  
      static java.util.Map<java.lang.String,​java.lang.String> queryToMap​(java.lang.String query, HttpRequest.Method m)
      Convenience method to transform a GET query into a map of attribute-value pairs.
      static HttpRequest.Method stringToMethod​(java.lang.String s)  
      static int stringToMonth​(java.lang.String m)  

      • Methods inherited from class ca.uqac.lif.cep.functions.UnaryFunction

        duplicate, evaluate, getInputArity, getInputTypesFor, getOutputArity, getOutputTypeFor, reset

      • Methods inherited from class ca.uqac.lif.cep.functions.Function

        duplicate, evaluate, evaluate, evaluateLazy, evaluatePartial, print, printState, read, readState

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • m_calendar

        protected final java.util.Calendar m_calendar
        An instance of calendar to convert dates into timestamps

      • s_linePattern

        protected static final transient java.util.regex.Pattern s_linePattern
        The pattern to parse a line of the log

      • s_urlPattern

        protected static final transient java.util.regex.Pattern s_urlPattern
        The pattern to parse a URL

    • Method Detail

      • getValue

        public HttpRequest getValue​(java.lang.String log_line)
        Specified by:
        getValue in class ca.uqac.lif.cep.functions.UnaryFunction<java.lang.String,​HttpRequest>

      • parseTime

        public static long parseTime​(java.util.Calendar calendar,
                             java.lang.String time_string)

      • stringToMonth

        public static int stringToMonth​(java.lang.String m)

      • queryToMap

        public static java.util.Map<java.lang.String,​java.lang.String> queryToMap​(java.lang.String query,
                                                                                HttpRequest.Method m)
        Convenience method to transform a GET query into a map of attribute-value pairs. For example, given an URI object representing the URL "http://abc.com/xyz?a=1&b=2", the method will return an object mapping "a" to "1" and "b" to "2".
        Parameters:
        query - The URI to process
        m - The method (GET, POST, etc.) of the request
        Returns:
        A map of attribute-value pairs

      • methodToString

        public static final java.lang.String methodToString​(HttpRequest.Method m)
        Creates a string out of a method
        Parameters:
        m - The method
        Returns:
        The method in string

      • stringToMethod

        public static HttpRequest.Method stringToMethod​(java.lang.String s)

      • parseParameters

        public static java.util.Map<java.lang.String,​java.lang.String> parseParameters​(java.lang.String param_string)