Keep debugging

asset-transfer-basic/chaincode-go/chaincode/smartcontract.go

@@ -10,6 +10,7 @@ import (
 	"log"
 	"crypto/sha256"
     "encoding/hex"
+	"reflect"
 )
 
 // SmartContract provides functions for managing an Asset
@@ -76,97 +77,87 @@ func (s *SmartContract) InitLedger(ctx contractapi.TransactionContextInterface,
 		return fmt.Errorf("failed to read 1st json files: %v", error_file)
 	} else {
 		
-		firstJsonFileHash, _ := s.Hash(InitData)
+		firstJsonFileHash, initDataHashError := s.Hash(ctx, InitData)
-		schemaJsonFileHash, _ := s.Hash(InitSchema)
+		schemaJsonFileHash, schemaHashError := s.Hash(ctx, InitSchema)
 		lastSchemaHash = schemaJsonFileHash
-
+		if initDataHashError != nil {
-		data := Data{
+			return fmt.Errorf("failed to calculate 1st json file hash: %v", initDataHashError)
+		} else if schemaHashError != nil {
+			return fmt.Errorf("failed to calculate schema hash: %v", schemaHashError)
+		} else{
+			data := Data{
 			Contributor: "pepitoperes@email.com", 
 			ContributorId: "ABC123", 
 			ContentHash: firstJsonFileHash, 
 			Id: "00000", 
 			Owners: []string{"CIA", "DEA", "FBI"}, 
 			JsonFileContent: firstJsonFileContent,
+			}
+
+			assetJSON, err := json.Marshal(data)
+			if err != nil {
+				return err
+			}
+
+			err = ctx.GetStub().PutState(data.ContentHash, assetJSON)
+			if err != nil {
+				return fmt.Errorf("failed to put to world state. %v", err)
+			}
+
+			//This is the definition of the Schema that we should use for validate all the JSON files from now on.
+			
+			initSchema := Schema{
+				Version: 1,
+				Hash: schemaJsonFileHash,
+				JsonSchemaContent: schemaJsonFileContent,
+			}
+		
+			assetJSON, err = json.Marshal(initSchema)
+			if err != nil {
+				return err
+			}
+
+			err = ctx.GetStub().PutState(initSchema.Hash, assetJSON)
+			if err != nil {
+				return fmt.Errorf("failed to put to world state. %v", err)
+			}
 		}
-
-		assetJSON, err := json.Marshal(data)
-		if err != nil {
-			return err
-		}
-
-		err = ctx.GetStub().PutState(data.ContentHash, assetJSON)
-		if err != nil {
-			return fmt.Errorf("failed to put to world state. %v", err)
-		}
-
-		//This is the definition of the Schema that we should use for validate all the JSON files from now on.
-		
-		initSchema := Schema{
-			Version: 1,
-			Hash: schemaJsonFileHash,
-			JsonSchemaContent: schemaJsonFileContent,
-		}
-	
-		assetJSON, err = json.Marshal(initSchema)
-		if err != nil {
-			return err
-		}
-
-		err = ctx.GetStub().PutState(initSchema.Hash, assetJSON)
-		if err != nil {
-			return fmt.Errorf("failed to put to world state. %v", err)
-		}
-		
-
 	}
 	return nil
 }
 
-func (s *SmartContract) LastSchemaHash() (string) {
+func (s *SmartContract) LastSchemaHash(ctx contractapi.TransactionContextInterface) (string) {
 	return lastSchemaHash
 }
 
-func (s *SmartContract) Hash(doc string) (string, error) {
+func (s *SmartContract) Hash(ctx contractapi.TransactionContextInterface, doc string) (string, error) {
-	result := s.isJSON(doc)
+	
-	if !result{
+	var v interface{}
-		return "HASH CRASH", fmt.Errorf("String passed as parameter is not in JSON format")
+	err := json.Unmarshal([]byte(doc), &v)
-	} else{
+	if err != nil{
-		var v interface{}
+		return "HASH CRASH", fmt.Errorf("Unable to unmarshal Json String passed as parameter. No hash calculation can be completed: %v", err)
-		err := json.Unmarshal([]byte(doc), &v)
+	} else {
+		cdoc, err := json.Marshal(v)
 		if err != nil{
-			return "HASH CRASH", fmt.Errorf("Unable to unmarshal Json String passed as parameter. No hash calculation can be completed: %v", err)
+			return "HASH CRASH", fmt.Errorf("Unable to re-marshal interface into json format. No hash calculation can be completed: %v", err)
-		} else {
+		} else{
-			cdoc, err := json.Marshal(v)
+			sum := sha256.Sum256(cdoc)
-			if err != nil{
+			return hex.EncodeToString(sum[0:]), nil
-				return "HASH CRASH", fmt.Errorf("Unable to re-marshal interface into json format. No hash calculation can be completed: %v", err)
-			} else{
-				sum := sha256.Sum256(cdoc)
-				return hex.EncodeToString(sum[0:]), nil
-			}
 		}
 	}
 }
 
-func (smct *SmartContract) isJSON(s string) bool {
-	var js interface{}
-	return json.Unmarshal([]byte(s), &js) == nil
-}
 
 func (s *SmartContract) JsonReader(ctx contractapi.TransactionContextInterface, content string) (map[string]interface{}, error) {
 
 	var payload map[string]interface{}
-	IsJson := s.isJSON(content)
+	// Now let's unmarshall the data into `payload`
-
+	err := json.Unmarshal([]byte(content), &payload)
-	if !IsJson {
+	if err != nil {
-		return payload, log.Fatal("The String passed is not in JSON format. Check String", interface{})
+		log.Fatal("Error during Unmarshal() of string into type Interface: ", err)
-	} else {
-		// Now let's unmarshall the data into `payload`
-		err := json.Unmarshal([]byte(content), &payload)
-		if err != nil {
-			log.Fatal("Error during Unmarshal() of string into type Interface: ", err)
-		}
-		return payload, nil
 	}
+	return payload, nil
+	
 }
 
 // GetAllAssets returns all assets found in world state
@@ -187,11 +178,21 @@ func (s *SmartContract) GetAllAssets(ctx contractapi.TransactionContextInterface
 		}
 
 		var data Data
-		err = json.Unmarshal(queryResponse.Value, &data)
+		func PrintRandomDiv() {
+			defer func() {
+			  if panicInfo := recover(); panicInfo != nil {
+				fmt.Printf("%v, %s", panicInfo, string(debug.Stack()))
+			  }
+			}()  
+			err = json.Unmarshal(queryResponse.Value, &data)
+		  }
+		
 		if err != nil {
+			log.Fatal("Error during Unmarshal() of string into type Data: ", err)
 			return nil, err
 		}
 		dataSamples = append(dataSamples, &data)
+		
 	}
 
 	return dataSamples, nil
@@ -223,7 +224,7 @@ func (s *SmartContract) CreateNewSchema(ctx contractapi.TransactionContextInterf
 		return err
 	} else {
 		// Verify that an schema with exact same structure doesn't exist yet.
-		hashContent, _ := s.Hash(newSchemaContent)
+		hashContent, _ := s.Hash(ctx, newSchemaContent)
 		exists, err := s.SchemaExists(ctx, hashContent)
 		if exists{
 			return fmt.Errorf("Schema already exists: %v", err)
@@ -304,7 +305,7 @@ func (s *SmartContract) ValidJson(ctx contractapi.TransactionContextInterface, J
 
 	//m := schemas[len(schemas) - 1].JsonFileContent
 
-	CurrentSchemaHash := s.LastSchemaHash()
+	CurrentSchemaHash := s.LastSchemaHash(ctx)
 	schema, _ := s.ReadSchema(ctx, CurrentSchemaHash)
 
 	schemaLoader := gojsonschema.NewGoLoader(schema.JsonSchemaContent)
@@ -331,7 +332,7 @@ func (s *SmartContract) ValidJson(ctx contractapi.TransactionContextInterface, J
 func (s *SmartContract) CreateDataSample(ctx contractapi.TransactionContextInterface,
 	Contributor string, ContributorId string, Id string, JsonFileContent string) error {
 	
-	ContentHash, err := s.Hash(JsonFileContent)
+	ContentHash, err := s.Hash(ctx, JsonFileContent)
 	exists, err := s.AssetExists(ctx, ContentHash)
 	if err != nil {
 		return err

test-network/JsonSchemaValidationTests/Schema.json

@@ -8,3 +8,8 @@
     "additionalProperties": false,
     "required": [ "number", "street_name"]
   }
+
+  "{ \"bar\": { \"abc\": 12, \"baz\": true }, \"foo\": 12.3 "
+
+
+  "{\"type\": object, \"properties\": { \"number\": { \"type\": number }, \"street_name\": { \"type\": string }, \"street_type\": { \"enum\": [Street, Avenue,Boulevard] }}, \"additionalProperties\": false, \"required\": [ number, street_name]}"

test-network/JsonSchemaValidationTests/testFile.json

@@ -1 +1,3 @@
 { "number": 1600, "street_name": "Pennsylvania", "street_type": "Avenue" }
+
+"{ \"number\": 1600, \"street_name\": Pennsylvania, \"street_type\": Avenue }"

test-network/QuickCCTest Win.sh

@@ -69,13 +69,25 @@ peer lifecycle chaincode querycommitted --channelID mychannel --name basic --caf
 
 echo "========= CC Test of jsonRead Function ==========="
 
-peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"JsonReader","Args":["/home/chaincode/schema.json"]}'
+#peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"JsonReader","Args":["/home/chaincode/schema.json"]}'
+
+peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"JsonReader","Args":["{ \"number\": 1600, \"street_name\": \"Pennsylvania\", \"street_type\": \"Avenue\" }"]}'
 
 
 echo "========= CC Invoke: Inizialitation ==========="
 
 #peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"InitLedger","Args":[]}'
-peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"InitLedger","Args":["/home/chaincode/schema.json", "/home/chaincode/firstJson.json"]}'
+#peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"InitLedger","Args":["/home/chaincode/schema.json", "/home/chaincode/firstJson.json"]}'
+
+peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"InitLedger","Args":["  {\"type\": \"object\", \"properties\": { \"number\": { \"type\": \"number\" }, \"street_name\": { \"type\": \"string\" }, \"street_type\": { \"enum\": [\"Street\", \"Avenue\",\"Boulevard\"] }}, \"additionalProperties\": false, \"required\": [ \"number\", \"street_name\"]}", "{ \"number\": 1600, \"street_name\": \"Pennsylvania\", \"street_type\": \"Avenue\" }"]}'
+
+echo "========= CC Invoke: Query Last Schema ==========="
+
+peer chaincode query -C mychannel -n basic -c '{"Args":["LastSchemaHash"]}'
+
+echo "========= CC Invoke: Query Hash Calculation ==========="
+
+peer chaincode invoke -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" -C mychannel -n basic --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -c '{"function":"Hash","Args":["{ \"number\": 1600, \"street_name\": Pennsylvania,\"street_type\": Avenue}"]}'
 
 echo "========= CC Query: Get all DataSamples ==========="