Package org.apache.hadoop.service

Class ServiceStateException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.apache.hadoop.service.ServiceStateException

All Implemented Interfaces:

Serializable, org.apache.hadoop.util.ExitCodeProvider

@Public
@Evolving
public class ServiceStateException
extends RuntimeException
implements org.apache.hadoop.util.ExitCodeProvider

Exception that can be raised on state change operations, whose exit code can be explicitly set, determined from that of any nested cause, or a default value of LauncherExitCodes.EXIT_SERVICE_LIFECYCLE_EXCEPTION.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ServiceStateException(int exitCode, String message, Throwable cause)	Instantiate, using the specified exit code as the exit code of the exception, irrespetive of any exit code supplied by any inner cause.
ServiceStateException(String message)	Instantiate
ServiceStateException(String message, Throwable cause)	Instantiate with a message and cause; if the cause has an exit code then it is used, otherwise the generic LauncherExitCodes.EXIT_SERVICE_LIFECYCLE_EXCEPTION exit code is used.
ServiceStateException(Throwable cause)

Method Summary

Modifier and Type	Method	Description
static RuntimeException	convert(String text, Throwable fault)	Convert any exception into a RuntimeException.
static RuntimeException	convert(Throwable fault)	Convert any exception into a RuntimeException.
int	getExitCode()	Method to get the exit code.

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 Details

ServiceStateException

public ServiceStateException(String message)

Instantiate

Parameters:

message - error message

ServiceStateException

public ServiceStateException(String message,
 Throwable cause)

Instantiate with a message and cause; if the cause has an exit code then it is used, otherwise the generic LauncherExitCodes.EXIT_SERVICE_LIFECYCLE_EXCEPTION exit code is used.

Parameters:

message - exception message

cause - optional inner cause

ServiceStateException

public ServiceStateException(int exitCode,
 String message,
 Throwable cause)

Instantiate, using the specified exit code as the exit code of the exception, irrespetive of any exit code supplied by any inner cause.

Parameters:

exitCode - exit code to declare

message - exception message

cause - inner cause

ServiceStateException

public ServiceStateException(Throwable cause)

Method Details

getExitCode

public int getExitCode()

Description copied from interface: org.apache.hadoop.util.ExitCodeProvider

Method to get the exit code.

Specified by:

getExitCode in interface org.apache.hadoop.util.ExitCodeProvider

Returns:

the exit code

convert

public static RuntimeException convert(Throwable fault)

Convert any exception into a RuntimeException. All other exception types are wrapped in a new instance of ServiceStateException.

Parameters:

fault - exception or throwable

Returns:

a RuntimeException to rethrow

convert

public static RuntimeException convert(String text,
 Throwable fault)

Convert any exception into a RuntimeException. If the caught exception is already of that type, it is typecast to a RuntimeException and returned. All other exception types are wrapped in a new instance of ServiceStateException.

Parameters:

text - text to use if a new exception is created

fault - exception or throwable

Returns:

a RuntimeException to rethrow