Class: Usd

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(user, password = "", base_url = "http://localhost:8050", hash = {}) ⇒ Usd

Returns a new instance of Usd.



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# File 'lib/usd.rb', line 18

def initialize(user, password="", base_url = "http://localhost:8050", hash={})
  hash = {:expiration_date => 0, :access_key => "",:save_access_key => true }.update hash
  make_new = true
  @base_url = base_url
  @user = user
  @debug = false
  remfile = "#{ENV["HOME"]}/.usd"
  if File.exist?(remfile) and hash[:save_access_key]
    tt = YAML.load(File.open(remfile,"r"))
    if (tt.expiration_date - Time.now.to_i ) > 900 and tt.base_url == base_url
      @access_key = tt.access_key
      @expiration_date = tt.expiration_date
      make_new = false
      puts "cache key loaded..." if @debug
    end
  end
  if hash[:save_access_key] and hash[:access_key].length > 0
    if (hash[:expiration_date] - Time.now.to_i ) > 900
      @access_key = hash[:access_key]
      @expiration_date = hash[:expiration_date]
      make_new = false
      puts "use existing access_key ..." if @debug
    end
  end
  if make_new
    encoded=Base64.encode64( "#{@user}:#{password}")
    begin
      response = RestClient::Request.execute(method: :post, url: "#{@base_url}/caisd-rest/rest_access?_type=json",
        payload: '<rest_access/>',
        headers: {
          'content-type' => "application/xml",
          "accept" => "application/json",
          "authorization" =>  "Basic #{encoded}",
          "cache-control" => "no-cache"
        },
        log: Logger.new(STDOUT)
      )
      authData=JSON.parse(response.body)
      if authData['rest_access']['access_key'] > 0
        @access_key = authData['rest_access']['access_key']
        @expiration_date = authData['rest_access']['expiration_date']
        if hash[:save_access_key]
          f=File.open(remfile,"w")
          f.puts self.to_yaml
          f.close
        end
      else
        "keinen Accesskey erhalten. \nresponse.body:\n#{response.body}"
      end
    rescue RestClient::ExceptionWithResponse => e
      e.response
    end
  end
end

Instance Attribute Details

#access_key ⇒ Object (readonly)

Returns the value of attribute access_key.



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# File 'lib/usd.rb', line 15

def access_key
  @access_key
end

#base_url ⇒ Object (readonly)

Returns the value of attribute base_url.



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# File 'lib/usd.rb', line 15

def base_url
  @base_url
end

#debug ⇒ Object

Returns the value of attribute debug.



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# File 'lib/usd.rb', line 15

def debug
  @debug
end

#expiration_date ⇒ Object (readonly)

Returns the value of attribute expiration_date.



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# File 'lib/usd.rb', line 15

def expiration_date
  @expiration_date
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'lib/usd.rb', line 15

def user
  @user
end

Class Method Details

.loadcon ⇒ Object 



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# File 'lib/usd.rb', line 73

def self.loadcon
  # load from env
  Usd.new(ENV["usduser"],ENV["usdpass"],ENV["usdurl"])
end

Instance Method Details

#create(hash = {}) ⇒ Object 



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# File 'lib/usd.rb', line 118

def create(hash = {})
  hash = {:type => "ruby", :data => {}}.update hash
  case hash[:type]
  when "ruby"
    data = hash[:data]
  when "json"
    data = JSON.parse(hash[:data])
  when "yaml"
    data = YAML.load(hash[:data])
  else
    "Error: 'data[:type]': '#{hash[:data]}' not found!"
  end
  puts "create - data: #{JSON.pretty_generate(data)}" if @debug
  object = data.keys[0]
  uri = "/caisd-rest/#{object}"
  request("/caisd-rest/#{object}",{:method => "post", :json => data.to_json})
end

#header(hash = {}) ⇒ Object 



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# File 'lib/usd.rb', line 78

def header(hash={})
  hash = {
    'x-accesskey' => @access_key,
    'accept' => "application/json",
    "Content-Type" =>"application/json; charset=UTF-8",
    'X-Obj-Attrs' => "*",
    'cache-control'=> "no-cache"
  }.update hash
  hash
end

#request(uri, hash = {}) ⇒ Object 



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# File 'lib/usd.rb', line 89

def request(uri, hash={})
  RestClient.log = STDOUT if @debug
  hash = {:method => "get", :header => header(), :unchanged => false, :json => "", :base_url => @base_url}.update hash
  puts "request - hash: #{JSON.pretty_generate(hash)}" if @debug
  if (uri !~ /^http/)
    url = URI.escape("#{hash[:base_url]}#{uri}")
  else
    url = URI.escape(uri)
  end
  begin
    if hash[:method] == "get"
      response = RestClient::Request.execute(method: hash[:method], url: url, headers: hash[:header])
    elsif   hash[:method] == "post"
      response = RestClient.post(url, hash[:json], hash[:header])
    elsif   hash[:method] == "put"
      response = RestClient.put(url, hash[:json], hash[:header])
    elsif   hash[:method] =~ /delete/i
      response = RestClient.delete(url, hash[:header])
    end
    if hash[:unchanged]
      response.body
    else
      JSON.parse(response.body)
    end
  rescue RestClient::ExceptionWithResponse => e
    e
  end
end

#search(object, params = {}) ⇒ Object 



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# File 'lib/usd.rb', line 175

def search(object,params={})
  attr=[]
  attr.push set_url_parm(params,"SORT","id DESC")
  attr.push set_url_parm(params,"start","1")
  attr.push set_url_parm(params,"size","50")
  attr.push set_url_parm(params,"WC","")
  fields = set_param(params,"fields","COMMON_NAME,id")
  query_string=attr.join("&")
  res_rdata = request("/caisd-rest/#{object}?#{query_string}",{:method => "get", :header => header({'X-Obj-Attrs' => fields})})
  puts res_rdata if @debug
  count = res_rdata["collection_#{object}"]["@COUNT"].to_i
  start = res_rdata["collection_#{object}"]["@START"].to_i
  total_count = res_rdata["collection_#{object}"]["@TOTAL_COUNT"].to_i
  # turn throught the pages
  if count == 1
    [res_rdata["collection_#{object}"][object]]
  elsif count == 0
    []
  else
    retArray = res_rdata["collection_#{object}"][object]
    if total_count > (count + start - 1)
      new_params = {"start" => (start + 50)}
      params = params.update new_params
      retArray += search(object,params)
    end
    retArray
  end
end

#set_param(params_hash, attribute_name, default) ⇒ Object 



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# File 'lib/usd.rb', line 171

def set_param(params_hash,attribute_name,default)
  params_hash[attribute_name]?params_hash[attribute_name]:default
end

#set_url_parm(params_hash, attribute_name, default) ⇒ Object 



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# File 'lib/usd.rb', line 159

def set_url_parm(params_hash,attribute_name,default)
  # disable case
  params_hash.keys.each do |k|
    if k =~ /^#{attribute_name}$/i
      v = params_hash[k]
      params_hash.delete(k)
      params_hash[attribute_name] = v
    end
  end
  "#{attribute_name}=#{params_hash[attribute_name]?params_hash[attribute_name]:default}"
end

#update(hash = {}) ⇒ Object 



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# File 'lib/usd.rb', line 136

def update(hash = {})
  hash = {:type => "ruby", :data => {}}.update hash
  case hash[:type]
  when "ruby"
    data = hash[:data]
  when "json"
    data = JSON.parse(hash[:data])
  when "yaml"
    data = YAML.load(hash[:data])
  else
    "Error: 'data[:type]': '#{hash[:data]}' not found!"
  end
  puts "update - data: #{JSON.pretty_generate(data)}" if @debug
  object = data.keys[0]
  if  data[object].has_key?("@id")
    request("/caisd-rest/#{object}/#{data[object]["@id"]}",{:method => "put", :json => data.to_json, :header => header({'X-Obj-Attrs' => 'COMMON_NAME'})})
  elsif data[object].has_key?("@COMMON_NAME")
    request("/caisd-rest/#{object}/COMMON_NAME-#{data[object]["@COMMON_NAME"]}",{:method => "put", :json => data.to_json, :header => header({'X-Obj-Attrs' => 'COMMON_NAME'})})
  else
    puts "specify @COMMON_NAME or @id at least."
  end
end