Class: DbMeta::Oracle::Oracle

Inherits:
Abstract
  • Object
show all
Includes:
Helper
Defined in:
lib/db_meta/oracle/oracle.rb

Constant Summary

Constants inherited from Abstract

Abstract::TYPES

Instance Method Summary collapse

Methods included from Helper

#block, #create_folder, #pluralize, #remove_folder, #type_sequence, #write_buffer_to_file

Methods inherited from Abstract

from_type, register_type

Constructor Details

#initialize(args = {}) ⇒ Oracle

Returns a new instance of Oracle.



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# File 'lib/db_meta/oracle/oracle.rb', line 20

def initialize(args = {})
  super(args)

  Connection.instance.set(@username, @password, @instance, @worker)

  @objects = Objects.new
end

Instance Method Details

#extract(args = {}) ⇒ Object 



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# File 'lib/db_meta/oracle/oracle.rb', line 48

def extract(args = {})
  format = args[:format] || :sql

  # validate args
  raise "Format [#{format}] is not supported" unless EXTRACT_FORMATS.include?(format)

  remove_folder(@base_folder)
  create_folder(@base_folder)

  @objects.detect_system_objects
  @objects.merge_synonyms
  @objects.merge_grants
  @objects.embed_indexes
  @objects.embed_constraints
  @objects.merge_constraints
  @objects.embed_triggers
  @objects.handle_table_data(args)

  extract_summary
  extract_create_all(args)
  extract_drop_all(args)

  # extract all default objects
  @objects.default_each do |object|
    folder = File.join(@base_folder, "#{"%02d" % type_sequence(object.type)}_#{object.type}")
    create_folder(folder)

    filename = File.join(folder, "#{object.name}.#{format}")
    write_buffer_to_file(object.extract(args), filename)
  end
end

#fetch(args = {}) ⇒ Object 



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# File 'lib/db_meta/oracle/oracle.rb', line 28

def fetch(args = {})
  @include_pattern = args[:include]
  @exclude_pattern = args[:exclude]

  Objects.all.each do |object|
    if @exclude_pattern
      next if @exclude_pattern&.match?(object.name)
    end
    if @include_pattern
      next unless @include_pattern&.match?(object.name)
    end
    @objects << object
  end

  # parallel fetching of object details
  @objects.fetch
ensure
  Connection.instance.disconnect
end