Class: RecordsKeeperRubyLib::Stream

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

Class Method Summary collapse

Class Method Details

.publish(address, stream, key, data) ⇒ Object

Function to publish data into the stream



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# File 'lib/RecordsKeeperRubyLib/stream.rb', line 37

def self.publish address, stream, key, data
 datahex1 = data.to_hex_string
 datahex = datahex1.delete(' ')
 auth = {:username => @user, :password => @password}
		options = {
			:headers => headers= {"Content-Type"=> "application/json","Cache-Control" => "no-cache"},
			:basic_auth => auth,
			:body => [ {"method":"publishfrom","params":[address, stream, key, datahex],"jsonrpc":2.0,"id":"curltext","chain_name":@chain}].to_json
		}
		response = HTTParty.get(@url, options)
		out = response.parsed_response

		txid = out[0]['result']

		if txid.nil?
			txid = out[0]['error']['message']
		end

		return txid;
end

.retrieve(stream, txid) ⇒ Object

Function to retrieve data against transaction id from the stream



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# File 'lib/RecordsKeeperRubyLib/stream.rb', line 59

def self.retrieve stream, txid
  auth = {:username => @user, :password => @password}
		options = {
:headers => headers= {"Content-Type"=> "application/json","Cache-Control" => "no-cache"},
:basic_auth => auth,
:body => [ {"method":"getstreamitem","params":[stream, txid],"jsonrpc":2.0,"id":"curltext","chain_name":@chain}].to_json
		}
		response = HTTParty.get(@url, options)
		out = response.parsed_response
		check = out[0]['result']

		if check.nil?
raw_data = out[0]['error']['message']
		else 
data = out[0]['result']['data']
     	raw_data = data.to_byte_string
    	end
		return raw_data;
end

.retrieveItems(stream, count) ⇒ Object

Function to list stream items on RecordsKeeper Blockchain



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# File 'lib/RecordsKeeperRubyLib/stream.rb', line 186

def self.retrieveItems stream, count
 auth = {:username => @user, :password => @password}
 options = {
   :headers => headers= {"Content-Type"=> "application/json","Cache-Control" => "no-cache"},
   :basic_auth => auth,
   :body => [ {"method":"liststreamitems","params":[stream, false ,count],"jsonrpc":2.0,"id":"curltext","chain_name":@chain}].to_json
 }
 response = HTTParty.get(@url, options)
 out = response.parsed_response

 check = out[0]['result']

		if check.nil?
			retrieveditems = out[0]['error']['message']
		else 
			address =[]
			key_value = []
			raw_data = []
			txid = []

			for i in 0...check.length
address.push(out[0]['result'][i]['publishers'])		        # returns publisher address
key_value.push(out[0]['result'][i]['key'])			          # returns key value of data
data = out[0]['result'][i]['data']					              # returns hex data
      raw_data.push(data.to_byte_string)                     	  # returns raw data
txid.push(out[0]['result'][i]['txid'])				            # returns tx id
			end
			retrieve = {:address => address,:key_value => key_value,:raw_data => raw_data,:txid => txid}
			retrieveditems = JSON.generate retrieve
		end
		return retrieveditems
end

.retrieveWithAddress(stream, address, count) ⇒ Object

Function to retrieve data against a particular publisher address



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# File 'lib/RecordsKeeperRubyLib/stream.rb', line 80

def self.retrieveWithAddress stream, address, count
 check = []
 auth = {:username => @user, :password => @password}
 options = {
   :headers => headers= {"Content-Type"=> "application/json","Cache-Control" => "no-cache"},
   :basic_auth => auth,
   :body => [ {"method":"liststreampublisheritems","params":[stream, address, false, count],"jsonrpc":2.0,"id":"curltext","chain_name":@chain}].to_json
 }
 response = HTTParty.get(@url, options)
 out = response.parsed_response


 check = out[0]['result']

 
 if check.empty?
 	retrievedinfo = "No published data found for this address"

 else
			key = []
  raw_data = []
  txid = []
			for i in 0...check.length
key.push(out[0]['result'][i]['key'])           	  #returns key value of the published data
      data = out[0]['result'][i]['data']                #returns hex data
      raw_data.push(data.to_byte_string)    						#returns raw data
      txid.push(out[0]['result'][i]['txid'])            #returns tx id
			end
			retrieve = {:key => key,:raw_data => raw_data,:txid => txid}
			retrievedinfo = JSON.generate retrieve
		end
		return retrievedinfo
end

.retrieveWithKey(stream, key, count) ⇒ Object

Function to retrieve data against a particular key value



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# File 'lib/RecordsKeeperRubyLib/stream.rb', line 115

def self.retrieveWithKey stream, key, count
  auth = {:username => @user, :password => @password}
  options = {
    :headers => headers= {"Content-Type"=> "application/json","Cache-Control" => "no-cache"},
    :basic_auth => auth,
    :body => [ {"method":"liststreamkeyitems","params":[stream, key, false, count],"jsonrpc":2.0,"id":"curltext","chain_name":@chain}].to_json
  }
  response = HTTParty.get(@url, options)
  out = response.parsed_response
  
  check = out[0]['result']

  if check.nil?
retrievedinfo = out[0]['error']['message']
		
		else

publisher = []
   raw_data = []
   txid = []

for i in 0...check.length
  publisher.push(out[0]['result'][i]['publishers'][0])    	#returns publisher's address of published data
     data = out[0]['result'][i]['data']                        #returns published hex data
     raw_data.push(data.to_byte_string)           				#returns data published
     txid.push(out[0]['result'][i]['txid'])                    #returns transaction id of published data
end
retrieve = {:publisher => publisher,:raw_data => raw_data,:txid => txid}
retrievedinfo = JSON.generate retrieve
return retrievedinfo
		end
end

.verifyData(stream, data, count) ⇒ Object

Function to verify data on RecordsKeeper Blockchain



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# File 'lib/RecordsKeeperRubyLib/stream.rb', line 149

def self.verifyData stream, data, count
  auth = {:username => @user, :password => @password}
  options = {
    :headers => headers= {"Content-Type"=> "application/json","Cache-Control" => "no-cache"},
    :basic_auth => auth,
    :body => [ {"method":"liststreamitems","params":[stream,false ,count],"jsonrpc":2.0,"id":"curltext","chain_name":@chain}].to_json
  }
  response = HTTParty.get(@url, options)
  out = response.parsed_response

  check = out[0]['result']

  if check.nil?
result = out[0]['error']['message']
		else 
raw_data = []
for i in 0...check.length
	result_data = out[0]['result'][i]['data']						       # returns hex data

   	if result_data.unicode_normalized?
		raw_data.push(result_data.to_byte_string)	                 # returns raw data
		
	else
     		raw_data.push("No data found")
   	end
   end

   if raw_data.include?data
	result = "Data is successfully verified."
else
	result = "Data not found."
   end
		end
		return result;
end