Package org.apache.synapse.commons.evaluators

Class Parser

java.lang.Object
org.apache.synapse.commons.evaluators.Parser
public class Parser extends Object
This class is used to parse a Given HTTP request against a set of rules.

A Rule has a priority. If a HTTP request matches the Rule, parser returns the priority corresponding to that rule.

Here is the syntax of the configuration used to building the parser

 <conditions [defualtPriority = "int"]>
     <condition priority = "">
        <and/> | <or> | <not> | <match> | <equal>
     </condition>
 </conditions>

  • Constructor Summary

    Constructors
    Constructor
    Description
    Parser()
    Create a parser with the defualt priority set to -1.
    Parser(int defaultPriority)
    Create a parser with a default priority.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    init(org.apache.axiom.om.OMElement conditions)
    Build the parser from a given XML
    int
    parse(EvaluatorContext context)
    Parse the HTTP request against the condition set and return the matching priority.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Parser

      public Parser()
      Create a parser with the defualt priority set to -1. If a HTTP message doesn't obey any of the conditions parser will return -1.

    • Parser

      public Parser(int defaultPriority)
      Create a parser with a default priority. If none of the rules matches the given HTTP request, it returns the default priority.
      Parameters:
      defaultPriority - default priority

  • Method Details

    • parse

      public int parse(EvaluatorContext context)
      Parse the HTTP request against the condition set and return the matching priority.
      Parameters:
      context - context used for holding the HTTP information
      Returns:
      priority as an integer

    • init

      public void init(org.apache.axiom.om.OMElement conditions) throws EvaluatorException
      Build the parser from a given XML
      Parameters:
      conditions - set of conditions
      Throws:
      EvaluatorException - if the configuration is invalid