Class LoggingErrorHandlerFactory

All Implemented Interfaces:
ErrorHandler<Action>, ErrorHandlerFactory<Action>
Direct Known Subclasses:

public class LoggingErrorHandlerFactory extends Object implements ErrorHandlerFactory<Action>, ErrorHandler<Action>
Exception handler factory implementation that logs error messages using the default logging mechanism. This factory is it's own error handler and the implementation is thread-safe (once the level has been set).
Last modified
$Date: 2015-04-20 11:08:18 +0200 (må, 20 apr 2015) $
  • Field Details

  • Constructor Details

    • LoggingErrorHandlerFactory

      public LoggingErrorHandlerFactory()
      Create a new error-level loggin error handler factory.
    • LoggingErrorHandlerFactory

      public LoggingErrorHandlerFactory(String level)
      Create a new custom-level logging error handler factory.
  • Method Details

    • getErrorHandler

      public ErrorHandler<Action> getErrorHandler(InvokationContext<? extends Action> context)
      Description copied from interface: ErrorHandlerFactory
      Get an error handler for the current context. This method is called once for each request/use of an extension point. Errors that happen when processing things related to this extension point will be directed to the error handler returned by this method. The factory may create a new or it may re-use the same error handler for each request. If the error handler is re-used it must be thread-safe.
      Specified by:
      getErrorHandler in interface ErrorHandlerFactory<Action>
      context - The current invokation context which is an extension point context (the InvokationContext.getExtension() method is expected to return null)
    • handleError

      public void handleError(InvokationContext<? extends Action> context, Action action, String message, Throwable t)
      Description copied from interface: ErrorHandler
      Handle an exception that has happened. It is up to the error handler what should happen next. Typically, error should always be logged but the error handler may choose to re-throw the exception. If the exception isn't already a runtime exception it must be wrapped.

      Note that there are three stages in the extension mechanism, which may cause some of the parameters to be null:

      • Extension point intialization: Eg. when the render factory is being prepared (context and action are both null)
      • Extension intialization: Eg. when the action factory is being prepared (action is null)
      • Extension rendering: Eg. when rendering the actions of a single extension (context and action are non-null)
      Specified by:
      handleError in interface ErrorHandler<Action>
      context - The extension context, which can be null
      action - The action that was being rendered when the error happened, which can be null
      message - An optional error message
      t - The error
    • setLevel

      public void setLevel(String level)
      Set the level of the error handler.
    • setRememberLast

      public void setRememberLast(String remember)
      Set a flag indicating if errors should be remembered by the registry. The last error for an extension or extension point can be retreived by calling Registry.getLastExtensionError(String) and/or Registry.getLastExtensionPointError(String).
      remember - A string that evaluates to a boolean