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com.newstep.solid.management

Class DefaultErrorHandler

com.newstep.solid.management.ErrorHandler

+--com.newstep.solid.management.DefaultErrorHandler

public class DefaultErrorHandler

provides a default error handling implementation that logs unhandled
exceptions, runtime exceptions, and errors.

NOTE: In the case of OutOfMemoryError the default handler first releases
a memory reservoir in order to provide memory to attempt to log the error

Links:

Kernel Association Association Link

to Class MemoryReservoir

memory reservoir used to block memory that may be released in order to allow
graceful handling of even in severe out of memory conditions

Associates type:

association

Client cardinality:

Client navigability:

NOT NAVIGABLE

Client visibility:

private

Supplier cardinality:

Supplier navigability:

NAVIGABLE

Supplier visibility:

private

Generalization Generalization Link

to Class ErrorHandler

provides a default error handling implementation that logs unhandled
exceptions, runtime exceptions, and errors.

NOTE: In the case of OutOfMemoryError the default handler first releases
a memory reservoir in order to provide memory to attempt to log the error

Field Summary
private final static String	className
private static Logger	logger
private static MemoryReservoir	memoryReservoir

Constructor Summary
public void	DefaultErrorHandler()

Method Summary
public void	doHandle(Throwable throwable)
private void	handleOutOfMemory(Throwable throwable)
public void	init(ErrorHandlerConfig config)

Field Detail

className

private final static String className

Final.

Multiplicity:

Static.

logger

private static Logger logger

logging members

Multiplicity:

Static.

memoryReservoir

private static MemoryReservoir memoryReservoir

memory reservoir used to block memory that may be released in order to allow
graceful handling of even in severe out of memory conditions

Multiplicity:

Static.

Constructor Detail

DefaultErrorHandler

public void DefaultErrorHandler ()

default constructor

Stereotype:

create

Method Detail

doHandle

public void doHandle (Throwable throwable)

logs the unhandled throwable

handleOutOfMemory

private void handleOutOfMemory (Throwable throwable)

handle the out of memory by logging and alarming. If handling fails due
to lack of memory, the handle method attempts to regain some memory from
its reserves and retry the handling

NOTE: must be careful that attempted handling does not enter
undefined state if OutOfMemory generated so it can be retried

Parameters:

throwable the unhandled Throwable to be handled

init

public void init (ErrorHandlerConfig config)

initializes the memory reservoir base on the specified configuration

Parameters:

config the DefaultErrorHandlerConfig to apply to the handler