Class: Mappum::JavaSupport

Inherits:
Object show all
Defined in:
lib/mappum/java_transform.rb

Overview

Utility class providing some usefull methods in java.

Class Method Summary collapse

Class Method Details

.list_maps_on_cp(dir = "map") ⇒ Object

List map files on classpath.



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# File 'lib/mappum/java_transform.rb', line 121

def self.list_maps_on_cp(dir="map")
  dir="map" if dir.nil?
  thread = java.lang.Thread.new
  class_loader = thread.context_class_loader
  container_urls = class_loader.find_resources(dir).to_a
  maplist = []
  container_urls.each do |url|
    if url.protocol == "file"
      filelist = Dir.glob(File.join(url.path,"*.rb"))
      #make paths relative again
      maplist += filelist.collect{|f| f[(url.path.size-dir.size)..-1]}
    elsif url.protocol ==  "vfsfile"
      filelist = Dir.glob(File.join(url.path,"*.rb"))
      #make paths relative again
      maplist += filelist.collect{|f| f[(url.path.size-dir.size-1)..-1]}
    elsif url.protocol == "jar"
      #beware nestet url
      path = URI.new(url.path).path
      path = path[0..(path.rindex("!")-1)]
      zip = java.util.zip.ZipFile.new(path)
      names = zip.entries.to_a.collect{|ze| ze.name}
      maplist += names.select{|nm| nm.index("map") == 0 and nm[-3..-1] == ".rb"}
    else
      #ups
      puts "WARN: Unknown protocol #{url.protocol} on the classpath. When looking for #{dir} in #{__FILE__}"
    end
  end
  return maplist
end