public void Execute()
{
// Using the metadata source, we create an instance of a defined data domain
WonkaRefEnvironment RefEnv = WonkaRefEnvironment.GetInstance();
// To test whether the data domain has been created, we plan on retrieving the value
// of the "AccountStatus" Attribute
WonkaRefAttr AccountStsAttr = RefEnv.GetAttributeByAttrName("AccountStatus");
// Creating an instance of the rules engine using our rules and the metadata
WonkaBreRulesEngine RulesEngine =
new WonkaBreRulesEngine(new StringBuilder(msRulesContents), moMetadataSource);
// Gets a predefined data record that will be our analog for new data coming into the system
WonkaProduct NewProduct = GetNewProduct();
// Check that the data has been populated correctly on the "new" record - also, we will use
// it later for comparison purposes
string sStatusValueBefore = GetAttributeValue(NewProduct, AccountStsAttr);
// Since the rules can reference values from different records (like O.Price for the existing
// record's price and N.Price for the new record's price), we need to provide the delegate
// that can pull the existing (i.e., old) record from the blockchain using a key
RulesEngine.GetCurrentProductDelegate = GetOldProduct;
// Validate the new record using our rules engine and its initialized RuleTree
WonkaBre.Reporting.WonkaBreRuleTreeReport Report = RulesEngine.Validate(NewProduct);
// Now retrieve the AccountStatus value and see if the rules have altered it (which should
// not be the case)
string sStatusValueAfter = GetAttributeValue(NewProduct, AccountStsAttr);
// We will evaluate whether or not any failures of the rules were detected during the engine's execution
if (Report.OverallRuleTreeResult == ERR_CD.CD_SUCCESS)
{
// If successful, we will write the record back into the contract on the blockchain
Serialize(NewProduct);
}
else if (Report.GetRuleSetFailureCount() > 0)
{
throw new Exception("Oh heavens to Betsy! Something bad happened!");
}
else
{
throw new Exception("What in the world is happening?!");
}
}
public void Execute()
{
// Using the metadata source, we create an instance of a defined data domain
WonkaRefEnvironment RefEnv =
WonkaRefEnvironment.CreateInstance(false, moMetadataSource);
// To test whether the data domain has been created, we pull back one attribute
WonkaRefAttr AccountStsAttr = RefEnv.GetAttributeByAttrName("AccountStatus");
// Creating an instance of the rules engine using our rules and the metadata
WonkaBreRulesEngine RulesEngine =
new WonkaBreRulesEngine(new StringBuilder(msRulesContents), moMetadataSource);
// Gets a predefined data record that will be our analog for new data coming into the system
WonkaProduct NewProduct = GetNewProduct();
// Check that the data has been populated correctly on the "new" record
string sStatusValueBefore = GetAttributeValue(NewProduct, AccountStsAttr);
// Since the rules can reference values from different records (like O.Price for the existing
// record's price and N.Price for the new record's price), we need to provide the delegate
// that can pull the existing (i.e., old) record using a key
RulesEngine.GetCurrentProductDelegate = GetOldProduct;
// Validate the new record using our rules engine and its initialized RuleTree
WonkaBre.Reporting.WonkaBreRuleTreeReport Report = RulesEngine.Validate(NewProduct);
// Now retrieve the AccountStatus value and see if the rules have altered it (which should
// not be the case)
string sStatusValueAfter = GetAttributeValue(NewProduct, AccountStsAttr);
if (Report.GetRuleSetFailureCount() > 0)
{
throw new Exception("Oh heavens to Betsy! Something bad happened!");
}
}
public void Execute(string psOrchestrationTestAddress = null, bool pbValidateWithinTransaction = false)
{
WonkaRefEnvironment RefEnv = WonkaRefEnvironment.GetInstance();
Dictionary <string, WonkaBre.RuleTree.WonkaBreSource> SourceMap =
new Dictionary <string, WonkaBre.RuleTree.WonkaBreSource>();
string sDefaultSourceId = "S";
string sContractSourceId = sDefaultSourceId;
string sContractAddress = "";
string sContractAbi = "";
string sOrchGetterMethod = "";
string sOrchSetterMethod = "";
// These values indicate the Custom Operator "INVOKE_VAT_LOOKUP" which has been used in the markup -
// its implementation can be found in the method "lookupVATDenominator"
string sCustomOpId = "INVOKE_VAT_LOOKUP";
string sCustomOpMethod = "lookupVATDenominator";
// If a 'psOrchestrationTestAddress' value has been provided, it indicates that the user wishes
// to use Orchestration
if (!String.IsNullOrEmpty(psOrchestrationTestAddress))
{
sContractAddress = psOrchestrationTestAddress;
sContractAbi = msAbiOrchTest;
sOrchGetterMethod = "getAttrValueBytes32";
sOrchSetterMethod = "setAttrValueBytes32";
}
else
{
sContractAddress = msContractAddress;
sContractAbi = msAbiWonka;
sOrchGetterMethod = "getValueOnRecord";
sOrchSetterMethod = "";
}
WonkaBreSource DefaultSource =
new WonkaBreSource(sContractSourceId, msSenderAddress, msPassword, sContractAddress, sContractAbi, sOrchGetterMethod, sOrchSetterMethod, RetrieveValueMethod);
// Here a mapping is created, where each Attribute points to a specific contract and its "accessor" methods
// - the class that contains this information (contract, accessors, etc.) is of the WonkaBreSource type
foreach (WonkaRefAttr TempAttr in moTargetAttrList)
{
SourceMap[TempAttr.AttrName] = DefaultSource;
}
Dictionary <string, WonkaBreSource> CustomOpSourceMap = new Dictionary <string, WonkaBreSource>();
// Here a mapping is created, where each Custom Operator points to a specific contract and its "implementation" method
// - the class that contains this information (contract, accessors, etc.) is of the WonkaBreSource type
WonkaBreSource CustomOpSource =
new WonkaBreSource(sCustomOpId, msSenderAddress, msPassword, sContractAddress, sContractAbi, LookupVATDenominator, sCustomOpMethod);
CustomOpSourceMap[sCustomOpId] = CustomOpSource;
// Creating an instance of the rules engine using our rules and the metadata
WonkaBreRulesEngine RulesEngine =
new WonkaBreRulesEngine(new StringBuilder(msRulesContents), SourceMap, CustomOpSourceMap, moMetadataSource, false);
RulesEngine.DefaultSource = sDefaultSourceId;
// The contract dictates that the RuleTree (and its other info, like the Orchestration and CU metadata)
// is serialized to the blockchain before interacting with it
SerializeRulesEngineToBlockchain(RulesEngine);
WonkaRefAttr NewSellTaxAmountAttr = RefEnv.GetAttributeByAttrName("NewSellTaxAmount");
WonkaRefAttr NewVATAmountForHMRCAttr = RefEnv.GetAttributeByAttrName("NewVATAmountForHMRC");
// Gets a predefined data record that will be our analog for new data coming into the system
// We are only using this record to test the .NET implementation
WonkaProduct NewProduct = GetNewProduct();
string sSellAmtBefore = GetAttributeValue(NewProduct, NewSellTaxAmountAttr);
string sVATAmtBefore = GetAttributeValue(NewProduct, NewVATAmountForHMRCAttr);
/**
** Test the .NET side
*/
WonkaBre.Reporting.WonkaBreRuleTreeReport Report = RulesEngine.Validate(NewProduct);
string sSellAmtAfter = GetAttributeValue(NewProduct, NewSellTaxAmountAttr);
string sVATAmtAfter = GetAttributeValue(NewProduct, NewVATAmountForHMRCAttr);
if (Report.OverallRuleTreeResult == ERR_CD.CD_SUCCESS)
{
// NOTE: This should only be used for further testing
// Serialize(NewProduct);
}
else if (Report.GetRuleSetFailureCount() > 0)
{
System.Console.WriteLine(".NET Engine says \"Oh heavens to Betsy! Something bad happened!\"");
}
else
{
System.Console.WriteLine(".NET Engine says \"What in the world is happening?\"");
}
// If a 'psOrchestrationTestAddress' value has been provided, it indicates that the user wishes
// to use Orchestration
if (!String.IsNullOrEmpty(psOrchestrationTestAddress))
{
/**
** Now execute the rules engine on the blockchain, using both Orchestration to call accessors
** on other contract(s) and Custom Operators to invoke the "INVOKE_VAT_LOOKUP" operator
** (i.e., the "lookupVATDenominator()" method) implemented on a contract.
**
** NOTE: Based on the value of the argument 'pbValidateWithinTransaction', we will act accordingly -
** If set to 'true', we issue a call() when we execute the rules engine, since we are only
** looking to validate here. However, if the value if 'false', we issue a sendTransaction()
** so that we can attempts to set values (i.e., change the blockchain) will take effect.
** In that case, we might want to pull back the record afterwards with a subsequent function
** call, in order to examine the record here.
**
**/
var BlockchainReport = ExecuteWithReport(RulesEngine, pbValidateWithinTransaction, SourceMap[NewSellTaxAmountAttr.AttrName], psOrchestrationTestAddress);
if (BlockchainReport.NumberOfRuleFailures == 0)
{
// Indication of a success
}
else if (BlockchainReport.NumberOfRuleFailures > 0)
{
throw new Exception("Oh heavens to Betsy! Something bad happened!");
}
else
{
throw new Exception("Seriously, what in the world is happening?!");
}
}
}