Contents

require 'sanford/exceptions'
require 'sanford/service_handler'

module Sanford

  class HostData

    # When trying to run a server for a host, we need to build up the host's
    # data to increase the performance of the server. This is done by
    # constantizing a host's handlers and merging a host's configuration with
    # optional overrides.

    attr_reader :name, :ip, :port, :pid_dir, :logger, :verbose, :error_proc

    def initialize(service_host, options = nil)
      configuration = service_host.configuration.to_hash.merge(remove_nil_values(options || {}))

      @name               = configuration[:name]
      @ip, @port          = configuration[:ip], configuration[:port]
      @pid_dir            = configuration[:pid_dir]
      @logger, @verbose   = configuration[:logger], configuration[:verbose_logging]
      @error_proc         = configuration[:error_proc]

      @handlers = service_host.versioned_services.inject({}) do |hash, (version, services)|
        hash.merge({ version => self.constantize_services(services) })
      end

      raise Sanford::InvalidHostError.new(service_host) if !self.port
    end

    def handler_class_for(version, service)
      version_group = @handlers[version] || {}
      version_group[service] || raise(Sanford::NotFoundError)
    end

    protected

    def constantize_services(services)
      services.inject({}) do |hash, (name, handler_class_name)|
        hash.merge({ name => self.constantize(handler_class_name) })
      end
    end

    def constantize(handler_class_name)
      Sanford::ServiceHandler.constantize(handler_class_name) ||
        raise(Sanford::NoHandlerClassError.new(handler_class_name))
    end

    def remove_nil_values(hash)
      hash.inject({}){|h, (k, v)| !v.nil? ? h.merge({ k => v }) : h }
    end

  end

end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
sanford-0.3.0	lib/sanford/host_data.rb
sanford-0.2.0	lib/sanford/host_data.rb