SonarLint: Invoke method(s) only conditionally on ZonedDateTime.now().format - spring

The ZonedDateTime.now().format(dateformat) in below code is causing SonarLint warning
Invoke method(s) only conditionally.
logger.info("{} : Return Code: {}", ZonedDateTime.now().format(dateformat), HttpStatus.OK);
what is the better way to do this so as not to cause this warning?

Related

How to fix Sonar Violation: Invoke methods only conditionally and Either Log or rethrow the exception

I have the below statements in my code which violates some Sonar Rules.
LOG.info("Fetched: {}", mapper.writeValueAsString(requests));
This one shows Invoke method(s) only conditionally for mapper.writeValueAsString(requests).
}catch (Exception e) {
LOG.error("Exception occurred while trying to fetch requests", e);
throw new GenericException(Error.FETCH_REQUEST_ERR_001.name(), e.getMessage(), Error.FETCH_REQUEST_ERR_001.value());
}
This one shows Either log this exception and handle it, or rethrow it with some contextual information. rule violation.
Any idea on how to resolve these. Appreciate any help.
I use IntelliJ and in a similar situation as yours SonarLint plugin accepted the following fix for me:
if(LOG.isInfoEnabled() && mapper != null){
LOG.info("Fetched: {}", mapper.writeValueAsString(requests)); // Your code
}

Spring aspect for crosscutting process pipeline usage

I want to use spring aspect for my crosscutting process like a before or after handler in my process execution lifetime.
For example
What I want before a method I want to execute my handler and due to its response I want to finialize myprocess and return custom response.
In example in stop condition should I throw custom exception to stop process that time how can I handle my return response ,I want to give meaningfull object at the client.What is the best way to do that?
#Before
MyHandler()
{
bool stop=checkvalue();
if(stop==false)
continue...
else
{
//break all process
and return custom response to client
//throw exception but meaningfullresponse??
}
}
Instead of using Before advice, I would use Around advice to wrap the method invocation and call checkValue() on beforehand:
#Around("someJoinpoint")
public Object MyHandler(ProceedingJoinPoint pjp) {
if (!checkvalue()) {
return pjp.proceed();
} else {
return someCustomResponseToClient();
}
}
More info on Around advice can be found in the Spring documentation.

How to safely ignore an error in a Dynamics CRM plugin?

I have a CRM plugin registered on Create (synchronous, post-operation) of a custom entity that performs some actions, and I want the Create operation to succeed in spite of errors in the plugin. For performance reasons, I also want the plugin to fire immediately when a record is created, so making the plugin asynchronous is undesirable. I've implemented this by doing something like the following:
public class FooPlugin : IPlugin
{
public FooPlugin(string unsecureInfo, string secureInfo) { }
public void Execute(IServiceProvider serviceProvider)
{
try
{
// Boilerplate
var context = (IPluginExecutionContext) serviceProvider.GetService(typeof (IPluginExecutionContext));
var serviceFactory = (IOrganizationServiceFactory) serviceProvider.GetService(typeof (IOrganizationServiceFactory));
IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);
// Additional validation omitted
var targetEntity = (Entity) context.InputParameters["Target"];
UpdateFrobber(service, (EntityReference)targetEntity["new_frobberid"]);
CreateFollowUpFlibber(service, targetEntity);
CloseTheEntity(service, targetEntity);
}
catch (Exception ex)
{
// Send an email but do not re-throw the exception
// because we don't want a failure to roll-back the transaction.
try
{
SendEmailForException(ex, context);
}
catch { }
}
}
}
However, when an error occurs (e.g. in UpdateFrobber(...)), the service client receives this exception:
System.ServiceModel.FaultException`1[Microsoft.Xrm.Sdk.OrganizationServiceFault]:
There is no active transaction. This error is usually caused by custom plug-ins
that ignore errors from service calls and continue processing.
Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ref ProxyRpc rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(ref MessageData msgData, Int32 type)
at Microsoft.Xrm.Sdk.IOrganizationService.Create(Entity entity)
at Microsoft.Xrm.Sdk.Client.OrganizationServiceProxy.CreateCore(Entity entity)
at Microsoft.Xrm.Sdk.Client.OrganizationServiceProxy.Create(Entity entity)
at Microsoft.Xrm.Client.Services.OrganizationService.<>c__DisplayClassd.<Create>b__c(IOrganizationService s)
at Microsoft.Xrm.Client.Services.OrganizationService.InnerOrganizationService.UsingService(Func`2 action)
at Microsoft.Xrm.Client.Services.OrganizationService.Create(Entity entity)
at MyClientCode() in MyClientCode.cs: line 100
My guess is that this happens because UpdateFrobber(...) uses the IOrganizationService instance derived from the plugin, so any CRM service calls that it makes participate in the same transaction as the plugin, and if those "child" operations fail, it causes the entire transaction to rollback. Is this correct? Is there a "safe" way to ignore an error from a "child" operation in a synchronous plugin? Perhaps a way of instantiating an IOrganizationService instance that doesn't re-use the plugin's context?
In case it's relevant, we're running CRM 2013, on-premises.
You cannot ignore unhandled exceptions from child plugins when your plugin is participating in a database transaction.
However, when your plugin is operating On Premise in partial trusted mode, you can actually create a OrganizationServiceProxy instance of your own and use that to access CRM. Be sure you reference the server your plugin is executing on to avoid "double hop" problems.
If really needed, I would create an ExecuteMultipleRequest with ContinueOnError = true, for your email you could just check the ExecuteMultipleResponse...
But it looks a bit overkill.
You can catch exceptions if running in async mode. Be sure to verify your mode when catching the exception.
Sample Code:
try
{
ExecuteTransactionResponse response =
(ExecuteTransactionResponse)service.Execute(exMultReq);
}
catch (Exception ex)
{
errored = true;
if (context.Mode == 0) //0 sync, 1 Async.
throw new InvalidPluginExecutionException(
$"Execute Multiple Transaction
Failed.\n{ex.Message}\n{innermessage}", ex);
}
if(errored == true)
{
//Do more stuff to handle it, such as Log the failure.
}
It is not possible to do so for a synchronous plugin.
A more detailed summary, explaining the execution mode and use case can be found on my blog: https://helpfulbit.com/handling-exceptions-in-plugins/
Cheers.

How can I tread OpenDolphin client send HttpHostConnectException?

Is there way to handle situation when message is not delivered to server? Dolphin log infors about situation clearly, but I'would like to catch it from code. I was looking for some method like: onError to override like onFinished:
clientDolphin.send(message, new OnFinishedHandlerAdapter() {
#Override
public void onFinished(List<ClientPresentationModel> presentationModels) {
// Do something useful
}
}
});
, but there is nothing like that. Also wrapping send call in try/catch does not work(not suprising since send is not blocking its caller code).
I thing there is definitely some easy way to get informed about undelivered message, but I cant see it.
Thaks, in advace, for answers!
You can assign an onException handler to the ClientConnector - and you are actually supposed to do so. The exception handler will get the exception object passed in that happened in the asynchronous send action.
Below is the default handler that even tells you, what you should do ;-)
Closure onException = { Throwable up ->
def out = new StringWriter()
up.printStackTrace(new PrintWriter(out))
log.severe("onException reached, rethrowing in UI Thread, consider setting ClientConnector.onException\n${out.buffer}")
uiThreadHandler.executeInsideUiThread { throw up } // not sure whether this is a good default
}

About Spring Transaction Manager

Currently i am using spring declarative transaction manager in my application. During DB operations if any constraint violated i want to check the error code against the database. i mean i want to run one select query after the exception happened. So i am catching the DataIntegrityViolationException inside my Catch block and then i am trying to execute one more error code query. But that query is not get executed . I am assuming since i am using the transaction manager if any exception happened the next query is not getting executed. Is that right?. i want to execute that error code query before i am returning the results to the client. Any way to do this?
#Override
#Transactional
public LineOfBusinessResponse create(
CreateLineOfBusiness createLineOfBusiness)
throws GenericUpcException {
logger.info("Start of createLineOfBusinessEntity()");
LineOfBusinessEntity lineOfBusinessEntity =
setLineOfBusinessEntityProperties(createLineOfBusiness);
try {
lineOfBusinessDao.create(lineOfBusinessEntity);
return setUpcLineOfBusinessResponseProperties(lineOfBusinessEntity);
}
// Some db constraints is failed
catch (DataIntegrityViolationException dav) {
String errorMessage =
errorCodesBd.findErrorCodeByErrorMessage(dav.getMessage());
throw new GenericUpcException(errorMessage);
}
// General Exceptions handling
catch (Exception exc) {
logger.debug("<<<<Coming inside General >>>>");
System.out.print("<<<<Coming inside General >>>>");
throw new GenericUpcException(exc.getMessage());
}
}
public String findErrorCodeByErrorMessage(String errorMessage)throws GenericUpcException {
try{
int first=errorMessage.indexOf("[",errorMessage.indexOf("constraint"));
int last=errorMessage.indexOf("]",first);
String errorCode=errorMessage.substring(first+1, last);
//return errorCodesDao.find(errorCode);
return errorCode;
}
catch(Exception e)
{
throw new GenericUpcException(e.getMessage());
}
}
Please help me.
I don't think problem you're describing has anything to do with Transaction management. If DataIntegrityViolationException happens within your try() block you code within catch() should execute. Perhaps exception different from DataIntegrityViolationException happens or your findErrorCodeByErrorMessage() throwing another exception. In general, Transaction logic would be applied only once you return from your method call, until then you could do whatever you like using normal Java language constructs. I suggest you put breakpoint in your error error handler or some debug statements to see what's actually happening.

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