Class: ApacheCrunch::MostCommon

Inherits:
ProcedureRoutine show all
Defined in:
lib/procedure_dsl.rb

Overview

DSL routine that finds the most common n values for the given block.

Returns a list of lists, each of which is [value, count]. This list is sorted by count.

Instance Method Summary collapse

Methods inherited from ProcedureRoutine

#finish, #initialize, #method_missing

Constructor Details

This class inherits a constructor from ApacheCrunch::ProcedureRoutine

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class ApacheCrunch::ProcedureRoutine

Instance Method Details

#execute(n, &blk) ⇒ Object 



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# File 'lib/procedure_dsl.rb', line 257

def execute(n, &blk)
    counts = CountBy.new(@_log_parser).execute(&blk)

    # Sort the block values descending
    sorted_vals = counts.keys.sort do |val_a,val_b|
        - (counts[val_a] <=> counts[val_b])
    end

    sorted_vals[0..n].map do |val|
        [val, counts[val]]
    end
end