Package nl.basjes.parse.useragent.analyze.treewalker

Class TreeExpressionEvaluator

java.lang.Object
nl.basjes.parse.useragent.analyze.treewalker.TreeExpressionEvaluator
All Implemented Interfaces:
Serializable
public class TreeExpressionEvaluator extends Object implements Serializable
This class gets the symbol table (1 value) uses that to evaluate the expression against the parsed user agent
See Also:

  • Constructor Details

    • TreeExpressionEvaluator

      public TreeExpressionEvaluator(org.antlr.v4.runtime.ParserRuleContext requiredPattern, Matcher matcher, boolean verbose)

  • Method Details

    • isEmpty

      public boolean isEmpty()

    • destroy

      public void destroy()

    • getFixedValue

      public String getFixedValue()
      Returns:
      The fixed value in case of a fixed value. NULL if a dynamic value

    • evaluate

      public WalkList.WalkResult evaluate(org.antlr.v4.runtime.tree.ParseTree tree, String key, String value)

    • mustHaveMatches

      public boolean mustHaveMatches()

    • getWalkListForUnitTesting

      public WalkList getWalkListForUnitTesting()

    • pruneTrailingStepsThatCannotFail

      public long pruneTrailingStepsThatCannotFail()