/// <summary>
/// Handles schema compare request
/// </summary>
/// <returns></returns>
public async Task HandleSchemaCompareRequest(SchemaCompareParams parameters, RequestContext <SchemaCompareResult> requestContext)
{
try
{
ConnectionInfo sourceConnInfo;
ConnectionInfo targetConnInfo;
ConnectionServiceInstance.TryFindConnection(
parameters.SourceEndpointInfo.OwnerUri,
out sourceConnInfo);
ConnectionServiceInstance.TryFindConnection(
parameters.TargetEndpointInfo.OwnerUri,
out targetConnInfo);
CurrentSchemaCompareTask = Task.Run(async() =>
{
SchemaCompareOperation operation = null;
try
{
operation = new SchemaCompareOperation(parameters, sourceConnInfo, targetConnInfo);
currentComparisonCancellationAction.Value[operation.OperationId] = operation.Cancel;
operation.Execute(parameters.TaskExecutionMode);
// add result to dictionary of results
schemaCompareResults.Value[operation.OperationId] = operation.ComparisonResult;
await requestContext.SendResult(new SchemaCompareResult()
{
OperationId = operation.OperationId,
Success = true,
ErrorMessage = operation.ErrorMessage,
AreEqual = operation.ComparisonResult.IsEqual,
Differences = operation.Differences
});
// clean up cancellation action now that the operation is complete (using try remove to avoid exception)
Action cancelAction = null;
currentComparisonCancellationAction.Value.TryRemove(operation.OperationId, out cancelAction);
}
catch (Exception e)
{
Logger.Write(TraceEventType.Error, "Failed to compare schema. Error: " + e);
await requestContext.SendResult(new SchemaCompareResult()
{
OperationId = operation != null ? operation.OperationId : null,
Success = false,
ErrorMessage = operation == null ? e.Message : operation.ErrorMessage,
});
}
});
}
catch (Exception e)
{
await requestContext.SendError(e);
}
}
private bool IsEqual(SchemaDifference difference, DiffEntry diffEntry)
{
bool result = true;
// Create a diff entry from difference and check if it matches the diff entry passed
DiffEntry entryFromDifference = SchemaCompareOperation.CreateDiffEntry(difference, null);
System.Reflection.PropertyInfo[] properties = diffEntry.GetType().GetProperties();
foreach (var prop in properties)
{
result = result &&
((prop.GetValue(diffEntry) == null &&
prop.GetValue(entryFromDifference) == null) ||
prop.GetValue(diffEntry).SafeToString().Equals(prop.GetValue(entryFromDifference).SafeToString()));
}
return(result);
}
