Module: VResource

Extended by:
Observable2
Defined in:
lib/vresource/vresource.rb,
lib/vresource/class_loader.rb,
lib/vresource/file_system_provider.rb,
lib/vresource/file_system_reloader.rb

Defined Under Namespace

Modules: ClassLoader Classes: FileSystemProvider, FileSystemReloader, NotExist

Class Method Summary collapse

Methods included from Observable2

add_observer, delete_observer, delete_observers, notify_observers, observers_count

Class Method Details

.add_resource_provider(provider) ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 12

def add_resource_provider provider
  @providers.unshift provider
end

.class_delete(class_name) ⇒ Object

Deletes in each Providers.



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# File 'lib/vresource/vresource.rb', line 59

def class_delete class_name
  providers.each{|p| p.class_delete class_name}
end

.class_exist?(class_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vresource/vresource.rb', line 54

def class_exist? class_name
  providers.any?{|p| p.class_exist? class_name}
end

.class_get(class_name) ⇒ Object

Returns from first Provider that contains this Class.



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# File 'lib/vresource/vresource.rb', line 30

def class_get class_name
  providers.each do |p|
    begin
      return p.class_get(class_name) 
    rescue NotExist;
    end
  end
  raise "Class '#{class_name}' doesn't exist!"
end

.class_set(class_name, data, *args) ⇒ Object

Search for first Provider that contains Class Namespace and creates Class in it, then exits.



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# File 'lib/vresource/vresource.rb', line 41

def class_set class_name, data, *args      
  namespace = Module.namespace_for class_name
  namespace = namespace ? namespace.to_s : nil
  found = false
  providers.each do |p|
    next unless !namespace or p.class_exist?(namespace)
    p.class_set class_name, data, *args
    found = true
    break
  end
  raise "Namespace '#{namespace}' doesn't exist!" unless found
end

.class_to_virtual_file(class_name) ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 126

def class_to_virtual_file class_name
  providers.each do |p|
    begin
      return p.class_to_virtual_file class_name 
    rescue NotExist;
    end
  end
  raise "Class '#{class_name}' doesn't exist!"          
end

.hook! ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 136

def hook!; ClassLoader.hook! end

.providers ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 16

def providers
  raise "There's no any Resource Provider!" if @providers.empty?
  @providers
end

.register_resource_extension(extension, load, save) ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 21

def register_resource_extension extension, load, save
  resource_extensions[extension] = load, save
end

.resource_delete(klass, resource_name) ⇒ Object

Deletes Resource in all Providers.



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# File 'lib/vresource/vresource.rb', line 92

def resource_delete klass, resource_name
  providers.each do |p|
    next unless p.class_exist?(klass.name)
    p.resource_delete klass.name, resource_name    
  end
end

.resource_exist?(klass, resource_name) ⇒ Boolean

Check also for Class existence.

Returns:

  • (Boolean) 


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# File 'lib/vresource/vresource.rb', line 119

def resource_exist? klass, resource_name
  providers.any? do |p|
    next unless p.class_exist?(klass.name)
    p.resource_exist? klass.name, resource_name
  end
end

.resource_extensions ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 10

def resource_extensions; @resource_extensions ||= {} end

.resource_get(klass, resource_name) ⇒ Object

Search each Provider that contains this Class and returns first found Resource.



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# File 'lib/vresource/vresource.rb', line 70

def resource_get klass, resource_name        
  providers.each do |p|
    next unless p.class_exist?(klass.name)
    begin
      data = p.resource_get(klass.name, resource_name)
      
      if data
        extension = File.extname(resource_name)
        if resource_extensions.include? extension
          load, save = resource_extensions[extension]
          data = load.call data, klass, resource_name
        end
      end
      
      return data
    rescue NotExist;
    end
  end
  raise "Resource '#{resource_name}' for Class '#{klass.name}' doesn't exist!"
end

.resource_set(klass, resource_name, data) ⇒ Object

Set Resource in fist Provider that contains this Class.



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# File 'lib/vresource/vresource.rb', line 100

def resource_set klass, resource_name, data
  extension = File.extname(resource_name)
  if resource_extensions.include? extension
    load, save = resource_extensions[extension]
    data = save.call data, klass, resource_name
  end
  
  found = false
  providers.each do |p|
    next unless p.class_exist?(klass.name)
    p.resource_set klass.name, resource_name, data
    found = true
    break
  end
  
  raise "Class '#{klass.name}' doesn't exist!" unless found
end

.unhook! ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 137

def unhook!; ClassLoader.unhook! end

.unregister_resource_extension(extension) ⇒ Object 



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# File 'lib/vresource/vresource.rb', line 25

def unregister_resource_extension extension
  resource_extensions.delete extension
end