Package org.wildfly.common.rpc

Class RemoteExceptionCause

java.lang.Object

java.lang.Throwable

org.wildfly.common.rpc.RemoteExceptionCause

All Implemented Interfaces:

Serializable

public final class RemoteExceptionCause
extends Throwable

A remote exception cause. Instances of this class are intended to aid with diagnostics and are not intended to be directly thrown. They may be added to other exception types as a cause or suppressed throwable.

Author:

David M. Lloyd

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
RemoteExceptionCause(String msg, String exceptionClassName)	Constructs a new RemoteExceptionCause instance with an initial message.
RemoteExceptionCause(String msg, String exceptionClassName, Map<String,String> fields)	Constructs a new RemoteExceptionCause instance with an initial message.
RemoteExceptionCause(String msg, RemoteExceptionCause cause, String exceptionClassName)	Constructs a new RemoteExceptionCause instance with an initial message and cause.
RemoteExceptionCause(String msg, RemoteExceptionCause cause, String exceptionClassName, Map<String,String> fields)	Constructs a new RemoteExceptionCause instance with an initial message and cause.

Method Summary

Modifier and Type	Method	Description
RemoteExceptionCause	getCause()
String	getExceptionClassName()	Get the original exception class name.
Set<String>	getFieldNames()	Get the field names of the remote exception.
String	getFieldValue(String fieldName)	Get the string value of the given field name.
static RemoteExceptionCause	of(Throwable t)	Get a remote exception cause for the given Throwable.
static RemoteExceptionCause	readFromStream(DataInput input)
Throwable	toPlainThrowable()	Convert this remote exception cause to a plain throwable for sending to peers which use serialization and do not have this class present.
String	toString()	Get a string representation of this exception.
void	writeToStream(DataOutput output)	Write this remote exception cause to the given stream, without using serialization.

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace

Methods inherited from class java.lang.Object

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

Constructor Details

RemoteExceptionCause

public RemoteExceptionCause(String msg,
 String exceptionClassName)

Constructs a new RemoteExceptionCause instance with an initial message. No cause is specified.

Parameters:

msg - the message

exceptionClassName - the name of the exception's class (must not be null)

RemoteExceptionCause

public RemoteExceptionCause(String msg,
 RemoteExceptionCause cause,
 String exceptionClassName)

Constructs a new RemoteExceptionCause instance with an initial message and cause.

Parameters:

msg - the message

cause - the cause

exceptionClassName - the name of the exception's class (must not be null)

RemoteExceptionCause

public RemoteExceptionCause(String msg,
 String exceptionClassName,
 Map<String,String> fields)

Constructs a new RemoteExceptionCause instance with an initial message. No cause is specified.

Parameters:

msg - the message

exceptionClassName - the name of the exception's class (must not be null)

fields - the public fields of the remote exception (must not be null)

RemoteExceptionCause

public RemoteExceptionCause(String msg,
 RemoteExceptionCause cause,
 String exceptionClassName,
 Map<String,String> fields)

Constructs a new RemoteExceptionCause instance with an initial message and cause.

Parameters:

msg - the message

cause - the cause

exceptionClassName - the name of the exception's class (must not be null)

fields - the public fields of the remote exception (must not be null)

Method Details

of

public static RemoteExceptionCause of(Throwable t)

Get a remote exception cause for the given Throwable. All of the cause and suppressed exceptions will also be converted.

Parameters:

t - the throwable, or null

Returns:

the remote exception cause, or null if null was passed in

toPlainThrowable

public Throwable toPlainThrowable()

Convert this remote exception cause to a plain throwable for sending to peers which use serialization and do not have this class present. Note that this does not recursively apply; normally, a serialization framework will handle the recursive application of this operation through object resolution.

Returns:

the throwable (not null)

getExceptionClassName

public String getExceptionClassName()

Get the original exception class name.

Returns:

the original exception class name (not null)

getFieldNames

public Set<String> getFieldNames()

Get the field names of the remote exception.

Returns:

the field names of the remote exception

getFieldValue

public String getFieldValue(String fieldName)

Get the string value of the given field name.

Parameters:

fieldName - the name of the field (must not be null)

Returns:

the string value of the given field name

toString

public String toString()

Get a string representation of this exception. The representation will return an indication of the fact that this was a remote exception, the remote exception type, and optionally details of the exception content, followed by the exception message.

Overrides:

toString in class Throwable

Returns:

the string representation of the exception

writeToStream

public void writeToStream(DataOutput output)
                   throws IOException

Write this remote exception cause to the given stream, without using serialization.

Parameters:

output - the output stream (must not be null)

Throws:

IOException - if an error occurs writing the data

readFromStream

public static RemoteExceptionCause readFromStream(DataInput input)
                                           throws IOException

Throws:

IOException

getCause

public RemoteExceptionCause getCause()

Overrides:

getCause in class Throwable