Class: NewsCrawler::Storage::YAMLStor::YAMLStorEngine

Inherits:
Object
  • Object
show all
Defined in:
lib/news_crawler/storage/yaml_stor/yaml_stor_engine.rb

Overview

Basic class for YAMLStor engine. Subclass and implement all its method to create new YAMLStor engine, you should keep methods’ singature unchanged

Direct Known Subclasses

MongoStorage

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.get_engines ⇒ Array

Get engine list

Returns:

  • (Array) —

    list of url queue engines



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# File 'lib/news_crawler/storage/yaml_stor/yaml_stor_engine.rb', line 36

def self.get_engines
  @engine_list = @engine_list || []
  @engine_list.inject({}) do | memo, klass |
    memo[klass::NAME.intern] = klass
    memo
  end
end

.inherited(klass) ⇒ Object 



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# File 'lib/news_crawler/storage/yaml_stor/yaml_stor_engine.rb', line 30

def self.inherited(klass)
  @engine_list = (@engine_list || []) + [klass]
end

Instance Method Details

#add(module_name, key, value) ⇒ Object

Add entry to raw data collection

Parameters:

  • module_name (String)
  • key (String)
  • value (Object)

Raises:

  • (NotImplementedError) 


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# File 'lib/news_crawler/storage/yaml_stor/yaml_stor_engine.rb', line 48

def add(module_name, key, value)
  raise NotImplementedError
end

#clear ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/news_crawler/storage/yaml_stor/yaml_stor_engine.rb', line 64

def clear
  raise NotImplementedError
end

#count ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/news_crawler/storage/yaml_stor/yaml_stor_engine.rb', line 60

def count
  raise NotImplementedError
end

#get(module_name, key) ⇒ Object?

Get entry to raw data collection

Parameters:

  • module_name (String)
  • key (String)

Returns:

  • (Object, nil) —

    Value or nil if key isn’t found

Raises:

  • (NotImplementedError) 


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# File 'lib/news_crawler/storage/yaml_stor/yaml_stor_engine.rb', line 56

def get(module_name, key)
  raise NotImplementedError
end