lib/bives.rb in bives-0.2 vs lib/bives.rb in bives-0.3

@@ -4,19 +4,30 @@
 module Bives
   class ConversionException < Exception
 
   end
 
+  class InitialisationException < Exception
+
+  end
+
   JAR_FILENAME = "BiVeS-1.1.2-SNAPSHOT-fat.jar"
   JAR_FILEPATH = File.join File.dirname(__FILE__),"jars","#{JAR_FILENAME}"
 
   def self.included(mod)
     unless File.exist?(JAR_FILEPATH)
-      raise "Jar file #{JAR_FILEPATH} not found"
+      raise InitialisationException.new("Jar file #{JAR_FILEPATH} not found")
     end
   end
 
+  def check_jar
+    unless File.exist?(JAR_FILEPATH)
+      raise InitialisationException.new("Jar file #{JAR_FILEPATH} not found")
+    end
+  end
+
   def compare file1,file2,opts=["reportHtml"]
+    check_jar
     cmd_opts = opts.collect{|o| "--#{o}"}.join(" ")
     command = "java -jar #{JAR_FILEPATH} #{cmd_opts} #{file1} #{file2}"
 
     err_message = ""
     output = ""