com.vaadin.flow.server.DefaultErrorHandler API 24.7.0.alpha6 | Vaadin

com.vaadin.flow.server.

java.lang.Object

com.vaadin.flow.server.DefaultErrorHandler

All Implemented Interfaces:

ErrorHandler, Serializable

public class DefaultErrorHandler extends Object implements ErrorHandler

The default implementation of ErrorHandler. This implementation logs the exception at ERROR level, unless the exception is in the ignore list. By default, the following exceptions are ignored to prevent logs to be flooded by errors that are usually not raised by application logic, but are caused by external event, such as broken connections or network issues.

java.net.SocketException
java.net.SocketTimeoutException
java.io.EOFException
org.apache.catalina.connector.ClientAbortException
org.eclipse.jetty.io.EofException

If the handler logger is set to DEBUG level, all exceptions are logged, despite they are in the ignore list.

Since:

1.0

Author:

Vaadin Ltd

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier

Constructor

Description

DefaultErrorHandler()

protected

DefaultErrorHandler(Set<String> ignoredExceptions)

protected

DefaultErrorHandler(Set<String> ignoredExceptions, Set<String> routeConfigurationExceptions)
Method Summary

Modifier and Type

Method

Description

void

error(ErrorEvent event)

Invoked when an error occurs.

static Throwable

findRelevantThrowable(Throwable t)

Vaadin wraps exceptions in its own and due to reflection usage there might be also other irrelevant exceptions that make no sense for Vaadin users (~developers using Vaadin).

protected boolean

shouldHandle(Throwable t)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- DefaultErrorHandler
  
  protected DefaultErrorHandler(Set<String> ignoredExceptions)
- DefaultErrorHandler
  
  protected DefaultErrorHandler(Set<String> ignoredExceptions, Set<String> routeConfigurationExceptions)
- DefaultErrorHandler
  
  public DefaultErrorHandler()
Method Details
- error
  
  public void error(ErrorEvent event)
  
  Description copied from interface: ErrorHandler
  
  Invoked when an error occurs.
  
  Specified by:
  
  error in interface ErrorHandler
  
  Parameters:
  
  event - the fired event.
- shouldHandle
  
  protected boolean shouldHandle(Throwable t)
- findRelevantThrowable
  
  public static Throwable findRelevantThrowable(Throwable t)
  
  Vaadin wraps exceptions in its own and due to reflection usage there might be also other irrelevant exceptions that make no sense for Vaadin users (~developers using Vaadin). This method tries to choose the relevant one to be reported.
  
  Parameters:
  
  t - a throwable passed to ErrorHandler
  
  Returns:
  
  the throwable that is relevant for Vaadin users