com.haulmont.cuba.gui.exception

Class HotDeployClassCastExceptionHandler

java.lang.Object

com.haulmont.cuba.gui.exception.AbstractUiExceptionHandler

com.haulmont.cuba.gui.exception.HotDeployClassCastExceptionHandler

All Implemented Interfaces:

UiExceptionHandler

@Component(value="cuba_HotDeployClassCastExceptionHandler")
public class HotDeployClassCastExceptionHandler
extends AbstractUiExceptionHandler

Handles a ClassCastException for the same classes that occurs during the hot deployment.

Nested Class Summary

Nested classes/interfaces inherited from interface com.haulmont.cuba.gui.exception.UiExceptionHandler

UiExceptionHandler.UiContext

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.util.regex.Pattern	HOT_DEPLOY_CLASS_CAST_REGEXP Regexp to find the same class names in the ClassCastException exception message.
protected Messages	messages

Fields inherited from class com.haulmont.cuba.gui.exception.AbstractUiExceptionHandler

classNames

Fields inherited from interface com.haulmont.cuba.gui.exception.UiExceptionHandler

HIGHEST_PLATFORM_PRECEDENCE, LOWEST_PLATFORM_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
HotDeployClassCastExceptionHandler()

Method Summary

Modifier and Type	Method and Description
protected boolean	canHandle(java.lang.String className, java.lang.String message, java.lang.Throwable throwable) Should be implemented in subclasses if the exception class name is not enough to determine the ability to handle the exception.
protected void	doHandle(java.lang.String className, java.lang.String message, java.lang.Throwable throwable, UiExceptionHandler.UiContext context) Perform exception handling.

Methods inherited from class com.haulmont.cuba.gui.exception.AbstractUiExceptionHandler

handle

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

HOT_DEPLOY_CLASS_CAST_REGEXP

protected static final java.util.regex.Pattern HOT_DEPLOY_CLASS_CAST_REGEXP

Regexp to find the same class names in the ClassCastException exception message.

Regexp explanation:

• ^(\w.+?)\b - matches the class name at the beginning of the string that consists of words separated by a dot and ends with a space
• (\w.+?)\b$ - matches the class name that consists of words separated by a dot and ends at the end of the string

Example:

      com.company.sample.web.screens.TestScreen cannot be cast to com.company.sample.web.screens.TestScreen
 

messages

@Inject
protected Messages messages

Constructor Detail

HotDeployClassCastExceptionHandler

public HotDeployClassCastExceptionHandler()

Method Detail

canHandle

protected boolean canHandle(java.lang.String className,
                            java.lang.String message,
                            @Nullable
                            java.lang.Throwable throwable)

Description copied from class: AbstractUiExceptionHandler

Should be implemented in subclasses if the exception class name is not enough to determine the ability to handle the exception.

Overrides:

canHandle in class AbstractUiExceptionHandler

Parameters:

className - exception class name

message - exception message

throwable - exception instance. Can be null if the exception occurred on the server side and this exception class isn't accessible by the client.

Returns:

true if the exception can be handled by this handler

doHandle

protected void doHandle(java.lang.String className,
                        java.lang.String message,
                        @Nullable
                        java.lang.Throwable throwable,
                        UiExceptionHandler.UiContext context)

Description copied from class: AbstractUiExceptionHandler

Perform exception handling.

Specified by:

doHandle in class AbstractUiExceptionHandler

Parameters:

className - actual exception class name

message - exception message

throwable - exception instance. Can be null if the exception occurred on the server side and this exception class isn't accessible by the client.

context - UI context