Package ai.preferred.venom

Class FatalHandlerException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

ai.preferred.venom.FatalHandlerException

All Implemented Interfaces:

java.io.Serializable

public class FatalHandlerException
extends java.lang.RuntimeException

This class defines fatal runtime exception for Handler. If Handler.handle(ai.preferred.venom.request.Request, ai.preferred.venom.response.VResponse, ai.preferred.venom.job.Scheduler, Session, Worker) encounters unexpected situation, it can signal Crawler to stop execution by throwing this exception.

Author:

Maksim Tkachenko

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
FatalHandlerException()	Constructs a new fatal handler exception with null as its detail message.
FatalHandlerException(java.lang.String message)	Constructs a new fatal handler exception with the specified detail message.
FatalHandlerException(java.lang.String message, java.lang.Throwable cause)	Constructs a new fatal handler exception with the specified detail message and cause.
FatalHandlerException(java.lang.Throwable cause)	Constructs a new fatal handler exception with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause).

Method Summary

Methods inherited from class java.lang.Throwable

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

Methods inherited from class java.lang.Object

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

Constructor Detail

FatalHandlerException

public FatalHandlerException()

Constructs a new fatal handler exception with null as its detail message. The cause is not initialized, and may subsequently be initialized by a call to Throwable.initCause(java.lang.Throwable).

FatalHandlerException

public FatalHandlerException(java.lang.String message)

Constructs a new fatal handler exception with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to Throwable.initCause(java.lang.Throwable).

Parameters:

message - the detail message. The detail message is saved for later retrieval by the Throwable.getMessage() method.

FatalHandlerException

public FatalHandlerException(java.lang.String message,
                             java.lang.Throwable cause)

Constructs a new fatal handler exception with the specified detail message and cause.

Note that the detail message associated with cause is not automatically incorporated in this runtime exception's detail message.

Parameters:

message - the detail message (which is saved for later retrieval by the Throwable.getMessage() method).

cause - the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

Since:

1.4

FatalHandlerException

public FatalHandlerException(java.lang.Throwable cause)

Constructs a new fatal handler exception with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause). This constructor is useful for runtime exceptions that are little more than wrappers for other throwables.

Parameters:

cause - the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

Since:

1.4