Class: Skeletor::Skeletons::Validator

Inherits:
Object
  • Object
show all
Defined in:
lib/skeletor/skeletons/validator.rb

Constant Summary collapse

SCHEMA_FILE = 
File.join Skeletons::Loader::TEMPLATE_PATH,'template-schema.yml'

Instance Method Summary collapse

Constructor Details

#initialize(template, schema = SCHEMA_FILE) ⇒ Validator

Returns a new instance of Validator.



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# File 'lib/skeletor/skeletons/validator.rb', line 9

def initialize(template,schema=SCHEMA_FILE)
  @errors = []
  @template = template
  @schema = Loader.loadTemplate(schema)
  @types = @schema['types'] || {}
end

Instance Method Details

#check_type(node, expected_type, label, accept_nil = false) ⇒ Object 



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# File 'lib/skeletor/skeletons/validator.rb', line 152

def check_type(node,expected_type,label,accept_nil = false)
  
  valid_type = true;
  if(@types.has_key?(expected_type))
    valid_type = match_node(node,@types[expected_type],label)
  elsif node.class.to_s != expected_type && !(node.kind_of?(NilClass) && (expected_type=='empty' || accept_nil))
    valid_type = false
  end
 
  return valid_type
  
end

#match_node(node, expected, label) ⇒ Object 



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# File 'lib/skeletor/skeletons/validator.rb', line 52

def match_node(node,expected,label)
  
  #check type    
  if !check_type(node,expected['type'],label,expected['ok_empty'])
    return false
  end
  
  if (node.kind_of?(Hash) || node.kind_of?(Array))
    
    if node.empty? && !expected['ok_empty']
      @errors.push('Error: node ' + label + ' cannot be empty')
      return false
    elsif !node.empty? && expected.has_key?('accepts')
      valid_content = false
      
      if node.kind_of?(Hash)
        matched = []
        unmatched = []
        node.each_pair{
          |key,value|
          
          expected['accepts'].each{
            |accepts|
               
            result = check_type(value,accepts,key)
            
            if result
              matched.push(key)
              if !unmatched.find_index(key).nil?
                unmatched.slice(unmatched.find_index(key))
              end
              break
            else
              unmatched.push(key)
            end
           
          }
          
        }
                   
        if(matched.count==node.count)
          valid_content = true
         else
          unmatched.each{
            |node|
            
            @errors.push('Error: node ' + node + ' is not of an accepted type. Should be one of ' + expected['accepts'].join(', '))
          }
        end
        
      elsif node.kind_of?(Array)
        matched = []
        unmatched = []
        node.each_index{
          |n|
          
          expected['accepts'].each{
            |accepts|
            
            key = label + '[' + n.to_s + ']'
            result = check_type(node[n],accepts,key)
            
            if result
              
              matched.push(key)
              if !unmatched.find_index(key).nil?
                unmatched.slice(unmatched.find_index(key))
              end
              break
            else
              unmatched.push(key)
            end
            
          }
        }
        
        if(matched.count==node.count)
          valid_content = true
        else
          unmatched.each{
            |node|
            
            @errors.push('Error: node ' + node + ' is not of an accepted type. Should be one of ' + expected['accepts'].join(', '))
          }
        end
      
      end
      
      if !valid_content
        @errors.push('Error: node ' + label + ' contains an unaccepted type.')
        return false
      end
   end
   
  end
 
  return true
          
end

#validate ⇒ Object 



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# File 'lib/skeletor/skeletons/validator.rb', line 16

def validate()
  failed = []
  
  @schema['sections'].each{
    |section|
    
    #check required sections are there
    if (section['required'] && !@template.has_key?(section['name']))
      @errors.push('Error: missing required section - ' + section['name'])
      failed.push(section['name'])
    elsif @template.has_key?(section['name'])
      node = @template[section['name']]
      validated = match_node(node,section,section['name'])
      if(!validated)
        failed.push(section['name'])
      end
    end
         
  }
  
  puts 'Result: ' + (failed.empty? ? 'Validated Successfully!' : 'Validation Failed!')
  
  if !failed.empty? && !@errors.empty?
    puts 'Validation Failed with ' + @errors.count.to_s + ' errors';
    puts ''
    @errors.each{
      |error|
      puts error            
    }
    return false
  else
    return true
  end
  
end