Class: DataShift::MappingService

Inherits:
Object
  • Object
show all
Includes:
Logging
Defined in:
lib/datashift/mapping_service.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Logging

#logdir, #logger

Constructor Details

#initialize(klass) ⇒ MappingService

Returns a new instance of MappingService.



28
29
30
 
# File 'lib/datashift/mapping_service.rb', line 28

def initialize( klass )
  @mapped_class_name = klass.name
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object

OpenStruct not a hash .. supports form … config.path, config.full_name etc



54
55
56
57
 
# File 'lib/datashift/mapping_service.rb', line 54

def method_missing(method, *args, &block)
  #logger :debug, "method_missing called with : #{method}"
  @mapping_entry.send(method)
end

Instance Attribute Details

#map_file_name ⇒ Object (readonly)

N.B :all_config, :key_config are OpenStruct data structure that provides definition of config entries as attributes with their accompanying values. So if you had a top level config entries in the YAML called path & full_name, you can call

config.path
config.full_name etc

For a more Hash like representation use config.yaml or config



24
25
26
 
# File 'lib/datashift/mapping_service.rb', line 24

def map_file_name
  @map_file_name
end

#mapped_class_name ⇒ Object (readonly)

N.B :all_config, :key_config are OpenStruct data structure that provides definition of config entries as attributes with their accompanying values. So if you had a top level config entries in the YAML called path & full_name, you can call

config.path
config.full_name etc

For a more Hash like representation use config.yaml or config



24
25
26
 
# File 'lib/datashift/mapping_service.rb', line 24

def mapped_class_name
  @mapped_class_name
end

#mapping_entry ⇒ Object (readonly)

Returns the value of attribute mapping_entry.



26
27
28
 
# File 'lib/datashift/mapping_service.rb', line 26

def mapping_entry
  @mapping_entry
end

#raw_data ⇒ Object (readonly)

Returns the value of attribute raw_data.



26
27
28
 
# File 'lib/datashift/mapping_service.rb', line 26

def raw_data
  @raw_data
end

#yaml_data ⇒ Object (readonly)

Returns the value of attribute yaml_data.



26
27
28
 
# File 'lib/datashift/mapping_service.rb', line 26

def yaml_data
  @yaml_data
end

Instance Method Details

#read(file, key = nil) ⇒ Object 



32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/datashift/mapping_service.rb', line 32

def read( file, key = nil )

  @map_file_name = file

  unless(map_file_name && File.exists?(map_file_name))
    logger.error "Cannot open mapping file - #{map_file_name} - file does not exist."
    raise FileNotFound.new("Cannot open mapping file - #{map_file_name}")
  end

  begin
    # Load application configuration
    set_mapping( map_file_name )

    set_key_config!( key ) if key
  rescue => e
    puts e.inspect
    logger.error "Failed to parse config file #{map_file_name} - bad YAML ?"
    raise e
  end
end