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module Ohcount
module Gestalt
# Will yield one trigger per java import - each with the name of the imported
# namespace. Example java source file:
#
# import com.foo.bar;
#
# will yield a trigger with name='com.foo.bar'
class FindJavaImportsRule < FileRule
attr_reader :keywords, :language
def initialize(*args)
@trigger_hash = {}
super(*args)
end
def process_source_file(source_file)
return unless source_file.language_breakdown('java')
java_code = source_file.language_breakdown('java').code
java_code.scan(import_regexp).each do |matches|
name = matches[0]
@trigger_hash[name] = @trigger_hash[name].to_i + 1
end
end
# implement deep clone
def clone
self.class.new(:min => @min_count)
end
def triggers(gestalt_engine)
triggers = []
@trigger_hash.each do |k,v|
triggers << Trigger.new(:name => FindJavaImportsRule.truncate_name(k, 3), :count => v)
end
triggers
end
def import_regexp
/^\s*import\s+([a-zA-Z][\w\.\*\-]*)\b/
end
# Truncates the java import namespace to a maximum depth.
# For instance,
# truncate_name("com.sun.identity.authentication", 3) => "com.sun.identity"
def self.truncate_name(s, max_depth)
s.to_s.split('.')[0, max_depth].join('.')
end
end
end
end
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