How to make a custom chain/operation returning custom error code 500
Hi all
I'm implementing a custom operation and using chainException framework to capture exception thrown in a chain, based on:
https://doc.nuxeo.com/display/NXDOC/Automation+Chain+Exception
<extension point=“chainException”
target="org.nuxeo.ecm.core.operation.OperationServiceComponent"> <catchChain id="**customExceptionCatch**" onChainId="Document.Create"> <run chainId="**customExceptionReturn**" priority="0" rollBack="true" /> </catchChain><extension target="org.nuxeo.ecm.core.operation.OperationServiceComponent" point="chains"> <chain id="**customExceptionReturn**"> <operation id="**Custom.Exception.Create**" /> </chain>
And it works ok. I can select the chain to be thrown when my custom chain fails and I can return a custom exception from this chain. But the webEngine returns a HTTP 200 code when I want it to return a 500.
This is my Exception public class CustomException extends RestOperationException {}
and how is it used in operation Custom.Exception.Create :
@OperationMethod()
public CustomException run() throws CustomException{
CustomException retVal = null;
Object excName = ctx.get("exceptionName");
Object excObject = ctx.get("exceptionObject");
_log.error("Registering new CustomException: " + excObject);
retVal = (CustomException)excObject;
retVal.setStatus(500);
}
The exception is extracted correctly and I can set the correct message, but it throws a 200 code instead a 500 (as set in my code).
This is the result:
{
"entity-type": "org.custom.nuxeo.operations.exception.CustomException",
"value": {
"className": "org.custom.nuxeo.operations.exception.CustomException",
"status": 500,
"rollback": true,
"cause": null,
"message": "OLEEEE is not a registered core type",
"localizedMessage": "OLEEEE is not a registered core type",
...
And I want this this way:
{
"entity-type": "exception",
"code": "org.nuxeo.ecm.automation.TraceException",
"status": 500,
"stacktrace": "org.nuxeo.ecm.webengine.W
I've take a look at https://github.com/nuxeo/nuxeo/blob/6.0-HF27/nuxeo-features/rest-api/nuxeo-rest-api-server/src/main/java/org/nuxeo/ecm/restapi/server/jaxrs/adapters/OperationAdapter.java#L94
But I could not get it working.
Any ideas please?
Thanks
 |
Paco Alías
Member (699) 1 3 4 |
06/15/2016 ( History) |
Finally I found a solution,
1) Create your own Exception
public class MyException extends RestOperationException {
Be sure to extend RestOperationException
2) In your operation, throw your exception
...
MyException exc = new MyException(e.getMessage(), e);
...
If you are using a chain instead an operation, take a look at that https://doc.nuxeo.com/display/NXDOC/Automation+Chain+Exception
And, in your custom operation to catch the exception (chainExceptionA in the example) do this:
@OperationMethod()
public OperationException run() throws OperationException{
MyException retVal = null;
if (_log.isDebugEnabled()) {
_log.debug("Running operation: " + MyExceptionCreateOperation.ID);
}
Object excName = ctx.get("exceptionName");
Object excObject = ctx.get("exceptionObject");
_log.error("Registering new MyException: " + excObject, (Throwable)excObject);
int returnCode = 500;
if (excObject instanceof MyException) {
retVal = (MyException)excObject;
returnCode = 400;
} else if (excObject instanceof Throwable) {
Throwable t = (Throwable)excObject;
retVal = new MyException(t.getMessage());
} else {
if (StringUtils.isNullOrEmpty(message)) {
message = "Unexpected exception [" + excName + "]: "
+ excObject.getClass().getName();
}
retVal = new MyException(message);
}
((RestOperationContext)ctx).setHttpStatus(returnCode);
** retVal.setStatus(returnCode);**
return retVal;
}
|
Paco Alías
Member (699) 1 3 4 |
06/21/2016 ( History) |