Class: Peacekeeper::Loader

Inherits:
Object
  • Object
show all
Defined in:
lib/peacekeeper/loader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Loader

Returns a new instance of Loader.



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# File 'lib/peacekeeper/loader.rb', line 5

def initialize(config)
  @config = config
  @source = config[:source]
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/peacekeeper/loader.rb', line 3

def config
  @config
end

#source ⇒ Object (readonly)

Returns the value of attribute source.



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# File 'lib/peacekeeper/loader.rb', line 3

def source
  @source
end

Instance Method Details

#active_record_config ⇒ Object 



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# File 'lib/peacekeeper/loader.rb', line 65

def active_record_config
  protocol = config['protocol'] || config['adapter'] || 'sqlite3'
  # Set the adapter (DB engine; i.e. mysql, sqlite3, postgres, etc.)

  database = config['database']
  ar_config = {
    adapter:  protocol,
    database: database
  }
  ar_config['host'] = config['host'] if config['host']
  ar_config['username'] = config['username'] if config['username']
  ar_config['password'] = config['password'] if config['password']
  ar_config['driver'] = config['driver'] if config['driver']
  ar_config
end

#load_source ⇒ Object 



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# File 'lib/peacekeeper/loader.rb', line 10

def load_source
  case source
  when :sequel
    require 'sequel'
    Sequel::Model.db = Sequel::DATABASES.find { |db| db.uri == sequel_db_uri } || Sequel.connect(sequel_db_uri)
  when :active_record
    require 'active_record'
    ActiveRecord::Base.establish_connection(active_record_config)
  when :api
    require 'nasreddin'
  when :mock
    require config[:mock_library] if config[:mock_library]
    #data_class # Trigger mock data_class creation
  end
end

#paramize(options) ⇒ Object 



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# File 'lib/peacekeeper/loader.rb', line 81

def paramize(options)
  params = options.map { |k, v| "#{k}=#{v}" }
  "#{params.join('&')}"
end

#sequel_db_uri ⇒ Object

Construct uri to connect to database Sequel: sequel.rubyforge.org/rdoc/files/doc/opening_databases_rdoc.html



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# File 'lib/peacekeeper/loader.rb', line 29

def sequel_db_uri
  # Set the protocol (DB engine; i.e. mysql, sqlite3, postgres, etc.)
  protocol = config['protocol'] || config['adapter'] || 'sqlite'
  if RUBY_ENGINE == 'jruby'
    protocol = "jdbc:#{protocol}" unless protocol.start_with? "jdbc:"
  end

  # Set the path (hostname & database name)
  path = "#{config['host'] || config['path']}/#{config['database']}"
  path = '' if path == '/' # Clear path if 'host', 'path', and 'database' are all unset

  # Set the user and password
  if RUBY_ENGINE == 'jruby' && protocol == 'jdbc:mysql'
    # Special case for JRuby and MySQL
    user_pass = "?user=#{config['username']}&password=#{config['password']}"
    server_path = "#{path}#{user_pass}"
  else
    user_pass = "#{config['username']}:#{config['password']}@"
    user_pass = '' if user_pass == ':@' # Clear user_pass if both 'username' and 'password' are unset
    server_path = "#{user_pass}#{path}"
  end

  # Finally, put the protocol and path components together
  server_path = "/#{server_path}" unless server_path.empty?
  uri = "#{protocol}:/#{server_path}"
  uri = 'jdbc:sqlite::memory:' if uri == 'jdbc:sqlite:/' && RUBY_ENGINE == 'jruby'
  if config['options']
    if uri =~ /\?/
      uri += "&#{paramize(config['options'])}"
    else
      uri += "?#{paramize(config['options'])}"
    end
  end
  uri
end