ca.uhn.fhir.rest.server.interceptor.IServerInterceptor java code examples

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private void myMethod () {
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}

/**
 * This method may be invoked by user code to notify interceptors that a nested
 * operation is being invoked which is denoted by this request details.
 */
public void notifyIncomingRequestPreHandled(RestOperationTypeEnum theOperationType) {
  RequestDetails requestDetails = getRequestDetails();
  if (requestDetails == null) {
    return;
  }
  IRestfulServerDefaults server = requestDetails.getServer();
  if (server == null) {
    return;
  }
  List<IServerInterceptor> interceptors = server.getInterceptors();
  for (IServerInterceptor next : interceptors) {
    next.incomingRequestPreHandled(theOperationType, this);
  }
}

  boolean continueProcessing = next.incomingRequestPreProcessed(theRequest, theResponse);
  if (!continueProcessing) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
  boolean continueProcessing = next.incomingRequestPostProcessed(requestDetails, theRequest, theResponse);
  if (!continueProcessing) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
  IServerInterceptor next = getInterceptors().get(i);
  try {
    next.processingCompletedNormally(requestDetails);
  } catch (Throwable t) {
    ourLog.error("Failure in interceptor method", t);
  if (!next.handleException(requestDetails, e, theRequest, theResponse)) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
    return;
for (int i = getInterceptors().size() - 1; i >= 0; i--) {
  IServerInterceptor next = getInterceptors().get(i);
  exception = next.preProcessOutgoingException(requestDetails, e, theRequest);
  if (exception != null) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
  if (!next.handleException(requestDetails, exception, theRequest, theResponse)) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
    return;

@Override
public Object invokeServer(IRestfulServer<?> theServer, RequestDetails theRequest) throws BaseServerResponseException, IOException {
  IBaseResource response = doInvokeServer(theServer, theRequest);
  Set<SummaryEnum> summaryMode = RestfulServerUtils.determineSummaryMode(theRequest);
  ResponseDetails responseDetails = new ResponseDetails();
  responseDetails.setResponseResource(response);
  responseDetails.setResponseCode(Constants.STATUS_HTTP_200_OK);
  HttpServletRequest servletRequest = null;
  HttpServletResponse servletResponse = null;
  if (theRequest instanceof ServletRequestDetails) {
    servletRequest = ((ServletRequestDetails) theRequest).getServletRequest();
    servletResponse = ((ServletRequestDetails) theRequest).getServletResponse();
  }
  for (int i = theServer.getInterceptors().size() - 1; i >= 0; i--) {
    IServerInterceptor next = theServer.getInterceptors().get(i);
    boolean continueProcessing = next.outgoingResponse(theRequest, response);
    if (!continueProcessing) {
      return null;
    }
    continueProcessing = next.outgoingResponse(theRequest, responseDetails, servletRequest, servletResponse);
    if (!continueProcessing) {
      return null;
    }
  }
  boolean prettyPrint = RestfulServerUtils.prettyPrintResponse(theServer, theRequest);
  return theRequest.getResponse().streamResponseAsResource(responseDetails.getResponseResource(), prettyPrint, summaryMode, responseDetails.getResponseCode(), null, theRequest.isRespondGzip(), isAddContentLocationHeader());
}

  boolean continueProcessing = next.incomingRequestPreProcessed(theRequest, theResponse);
  if (!continueProcessing) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
  boolean continueProcessing = next.incomingRequestPostProcessed(requestDetails, theRequest, theResponse);
  if (!continueProcessing) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
  IServerInterceptor next = getInterceptors().get(i);
  try {
    next.processingCompletedNormally(requestDetails);
  } catch (Throwable t) {
    ourLog.error("Failure in interceptor method", t);
  if (!next.handleException(requestDetails, e, theRequest, theResponse)) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
    return;
for (int i = getInterceptors().size() - 1; i >= 0; i--) {
  IServerInterceptor next = getInterceptors().get(i);
  exception = next.preProcessOutgoingException(requestDetails, e, theRequest);
  if (exception != null) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
  if (!next.handleException(requestDetails, exception, theRequest, theResponse)) {
    ourLog.debug("Interceptor {} returned false, not continuing processing");
    return;

protected final Object invokeServerMethod(IRestfulServer<?> theServer, RequestDetails theRequest, Object[] theMethodParams) {
  // Handle server action interceptors
  RestOperationTypeEnum operationType = getRestOperationType(theRequest);
  if (operationType != null) {
    for (IServerInterceptor next : theServer.getInterceptors()) {
      ActionRequestDetails details = new ActionRequestDetails(theRequest);
      populateActionRequestDetailsForInterceptor(theRequest, details, theMethodParams);
      next.incomingRequestPreHandled(operationType, details);
    }
  }
  // Actually invoke the method
  try {
    Method method = getMethod();
    return method.invoke(getProvider(), theMethodParams);
  } catch (InvocationTargetException e) {
    if (e.getCause() instanceof BaseServerResponseException) {
      throw (BaseServerResponseException) e.getCause();
    }
    throw new InternalErrorException("Failed to call access method: " + e.getCause(), e);
  } catch (Exception e) {
    throw new InternalErrorException("Failed to call access method: " + e.getCause(), e);
  }
}

boolean continueProcessing = next.outgoingResponse(theRequest, outcome);
if (!continueProcessing) {
  return null;
continueProcessing = next.outgoingResponse(theRequest, responseDetails, servletRequest, servletResponse);
if (!continueProcessing) {
  return null;

public void notifyInterceptors(RestOperationTypeEnum theOperationType, ActionRequestDetails theRequestDetails) {
  if (theRequestDetails.getId() != null && theRequestDetails.getId().hasResourceType() && isNotBlank(theRequestDetails.getResourceType())) {
    if (theRequestDetails.getId().getResourceType().equals(theRequestDetails.getResourceType()) == false) {
      throw new InternalErrorException(
        "Inconsistent server state - Resource types don't match: " + theRequestDetails.getId().getResourceType() + " / " + theRequestDetails.getResourceType());
    }
  }
  if (theRequestDetails.getUserData().get(PROCESSING_SUB_REQUEST) == Boolean.TRUE) {
    theRequestDetails.notifyIncomingRequestPreHandled(theOperationType);
  }
  List<IServerInterceptor> interceptors = getConfig().getInterceptors();
  for (IServerInterceptor next : interceptors) {
    next.incomingRequestPreHandled(theOperationType, theRequestDetails);
  }
}

@Override
public Object invokeServer(IRestfulServer<?> theServer, RequestDetails theRequest) throws BaseServerResponseException, IOException {
  IBaseResource response = doInvokeServer(theServer, theRequest);
  Set<SummaryEnum> summaryMode = RestfulServerUtils.determineSummaryMode(theRequest);
  ResponseDetails responseDetails = new ResponseDetails();
  responseDetails.setResponseResource(response);
  responseDetails.setResponseCode(Constants.STATUS_HTTP_200_OK);
  HttpServletRequest servletRequest = null;
  HttpServletResponse servletResponse = null;
  if (theRequest instanceof ServletRequestDetails) {
    servletRequest = ((ServletRequestDetails) theRequest).getServletRequest();
    servletResponse = ((ServletRequestDetails) theRequest).getServletResponse();
  }
  for (int i = theServer.getInterceptors().size() - 1; i >= 0; i--) {
    IServerInterceptor next = theServer.getInterceptors().get(i);
    boolean continueProcessing = next.outgoingResponse(theRequest, response);
    if (!continueProcessing) {
      return null;
    }
    continueProcessing = next.outgoingResponse(theRequest, responseDetails, servletRequest, servletResponse);
    if (!continueProcessing) {
      return null;
    }
  }
  boolean prettyPrint = RestfulServerUtils.prettyPrintResponse(theServer, theRequest);
  return theRequest.getResponse().streamResponseAsResource(responseDetails.getResponseResource(), prettyPrint, summaryMode, responseDetails.getResponseCode(), null, theRequest.isRespondGzip(), isAddContentLocationHeader());
}

/**
 * This method may be invoked by user code to notify interceptors that a nested
 * operation is being invoked which is denoted by this request details.
 */
public void notifyIncomingRequestPreHandled(RestOperationTypeEnum theOperationType) {
  RequestDetails requestDetails = getRequestDetails();
  if (requestDetails == null) {
    return;
  }
  IRestfulServerDefaults server = requestDetails.getServer();
  if (server == null) {
    return;
  }
  List<IServerInterceptor> interceptors = server.getInterceptors();
  for (IServerInterceptor next : interceptors) {
    next.incomingRequestPreHandled(theOperationType, this);
  }
}

boolean continueProcessing = next.outgoingResponse(theRequest, outcome);
if (!continueProcessing) {
  return null;
continueProcessing = next.outgoingResponse(theRequest, responseDetails, servletRequest, servletResponse);
if (!continueProcessing) {
  return null;

protected final Object invokeServerMethod(IRestfulServer<?> theServer, RequestDetails theRequest, Object[] theMethodParams) {
  // Handle server action interceptors
  RestOperationTypeEnum operationType = getRestOperationType(theRequest);
  if (operationType != null) {
    for (IServerInterceptor next : theServer.getInterceptors()) {
      ActionRequestDetails details = new ActionRequestDetails(theRequest);
      populateActionRequestDetailsForInterceptor(theRequest, details, theMethodParams);
      next.incomingRequestPreHandled(operationType, details);
    }
  }
  // Actually invoke the method
  try {
    Method method = getMethod();
    return method.invoke(getProvider(), theMethodParams);
  } catch (InvocationTargetException e) {
    if (e.getCause() instanceof BaseServerResponseException) {
      throw (BaseServerResponseException) e.getCause();
    }
    throw new InternalErrorException("Failed to call access method: " + e.getCause(), e);
  } catch (Exception e) {
    throw new InternalErrorException("Failed to call access method: " + e.getCause(), e);
  }
}

public void notifyInterceptors(RestOperationTypeEnum theOperationType, ActionRequestDetails theRequestDetails) {
  if (theRequestDetails.getId() != null && theRequestDetails.getId().hasResourceType() && isNotBlank(theRequestDetails.getResourceType())) {
    if (theRequestDetails.getId().getResourceType().equals(theRequestDetails.getResourceType()) == false) {
      throw new InternalErrorException(
        "Inconsistent server state - Resource types don't match: " + theRequestDetails.getId().getResourceType() + " / " + theRequestDetails.getResourceType());
    }
  }
  if (theRequestDetails.getUserData().get(PROCESSING_SUB_REQUEST) == Boolean.TRUE) {
    theRequestDetails.notifyIncomingRequestPreHandled(theOperationType);
  }
  List<IServerInterceptor> interceptors = getConfig().getInterceptors();
  for (IServerInterceptor next : interceptors) {
    next.incomingRequestPreHandled(theOperationType, theRequestDetails);
  }
}

Javadoc

Provides methods to intercept requests and responses. Note that implementations of this interface may wish to use InterceptorAdapter in order to not need to implement every method.

See: See the server interceptor documentation for more information on how to use this class.

Most used methods

incomingRequestPreHandled
Invoked before an incoming request is processed. Note that this method is called after the server ha
handleException
This method is called upon any exception being thrown within the server's request processing code. T
incomingRequestPostProcessed
This method is called just before the actual implementing server method is invoked.
incomingRequestPreProcessed
This method is called before any other processing takes place for each incoming request. It may be u
outgoingResponse
This method is called after the server implementation method has been called, but before any attempt
preProcessOutgoingException
This method is called upon any exception being thrown within the server's request processing code. T
processingCompletedNormally
This method is called after all processing is completed for a request, but only if the request compl

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How to useIServerInterceptor in ca.uhn.fhir.rest.server.interceptor

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