Class: JavaClass::Classpath::CompositeClasspath

Inherits:
Object
  • Object
show all
Defined in:
lib/javaclass/classpath/composite_classpath.rb

Overview

List of class path elements.

Author

Peter Kofler

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CompositeClasspath

Return the list of classnames found in this path.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 10

def initialize
  @elements = []
end

Instance Method Details

#add_element(elem) ⇒ Object

Add the elem classpath element to the list.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 48

def add_element(elem)
  @elements << elem unless @elements.find { |cpe| cpe == elem }
  elem.additional_classpath.each do |acpe|
    # referred classpath elements may be missing
    if FileTest.exist? acpe
      add_element(JarClasspath.new(acpe)) 
    end 
  end
end

#add_file_name(name) ⇒ Object

Add the name class path file/folder name to the list.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 39

def add_file_name(name)
  if FileTest.directory? name
    add_element(FolderClasspath.new(name))
  else
    add_element(JarClasspath.new(name))
  end
end

#additional_classpath ⇒ Object

Return an empty array.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 64

def additional_classpath
  []
end

#count ⇒ Object

Return the number of classes in this jar.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 88

def count
  @elements.inject(0) { |s,e| s + e.count }
end

#elements ⇒ Object

Return the classpath elements of this path.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 15

def elements
  @elements.dup
end

#find_jars(path) ⇒ Object

Search the given path recursievely for zips or jars. Add all found jars to this classpath.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 20

def find_jars(path)
  current = Dir.getwd
  begin
    Dir.chdir File.expand_path(path)

    Dir['*'].collect do |name|
      if FileTest.directory?(name)
        find_jars(name)
      elsif name =~ /\.jar$|\.zip$/
        add_file_name File.expand_path(name)
      end
    end

  ensure
    Dir.chdir current
  end
end

#includes?(classname) ⇒ Boolean

Return if classname is included in this classpath.

Returns:

  • (Boolean) 


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# File 'lib/javaclass/classpath/composite_classpath.rb', line 74

def includes?(classname)
  @elements.find { |e| e.includes?(classname) } != nil
end

#jar? ⇒ Boolean

Return false.

Returns:

  • (Boolean) 


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# File 'lib/javaclass/classpath/composite_classpath.rb', line 59

def jar?
  false
end

#load_binary(classname) ⇒ Object

Load the binary data of the file name or class name classname from this classpath.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 79

def load_binary(classname)
  found = @elements.find { |e| e.includes?(classname) }
  if (found)
    return found.load_binary(classname)
  end
  raise "class #{classname} not found in classpath #{to_s}"
end

#names ⇒ Object

Return the list of class names found in this classpath.



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 69

def names
  @elements.collect { |e| e.names }.flatten.uniq
end

#to_s ⇒ Object 



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# File 'lib/javaclass/classpath/composite_classpath.rb', line 92

def to_s
  @elements.collect { |e| e.to_s }.join(',')
end