org.apache.hadoop.hive.metastore

Class ExceptionHandler

java.lang.Object

org.apache.hadoop.hive.metastore.ExceptionHandler

public final class ExceptionHandler
extends Object

Provides a simplified way of handling complex exceptions instead of catching the targeted exceptions differently for some transformations of exceptions.

Method Summary

Modifier and Type	Method and Description
<S extends Exception,T extends org.apache.thrift.TException> ExceptionHandler	convertIfInstance(Class<S> source, Class<T> target) Converts the input exception to the target instance of class target, if the input exception is the instance of class source, throws the converted target exception.
MetaException	defaultMetaException()
RuntimeException	defaultRuntimeException() Converts the input exception to RuntimeException and returns.
org.apache.thrift.TException	defaultTException()
static ExceptionHandler	handleException(Exception e)
static MetaException	newMetaException(Exception e) Converts the input exception to MetaException and returns.
static void	rethrowException(Exception e) Throws if the input exception is the instance of MetaException, NoSuchObjectException or TException, otherwise converts the exception to the MetaException and throws.
<T extends Exception> ExceptionHandler	throwIfInstance(Class<T> t) Throws if the input exception is the instance of the input class
<T1 extends Exception,T2 extends Exception> ExceptionHandler	throwIfInstance(Class<T1> te1, Class<T2> te2) Throws if the input exception is the instance of the one in the input classes
<T1 extends Exception,T2 extends Exception,T3 extends Exception> ExceptionHandler	throwIfInstance(Class<T1> te1, Class<T2> te2, Class<T3> te3) Throws if the input exception is the instance of the one in the input classes
static void	throwMetaException(Exception e) Throws if the input exception is the instance of MetaException or NoSuchObjectException, otherwise converts the exception to the MetaException and throws.
ExceptionHandler	toMetaExceptionIfInstance(String message, Class<?>... clzs) Creates the MetaException with the given message, if the input exception is the instance of the one in the input classes, throws the created MetaException.

Methods inherited from class java.lang.Object

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

Method Detail

handleException

public static ExceptionHandler handleException(Exception e)

throwIfInstance

public <T extends Exception> ExceptionHandler throwIfInstance(Class<T> t)
                                                       throws T extends Exception

Throws if the input exception is the instance of the input class

Throws:

T extends Exception

throwIfInstance

public <T1 extends Exception,T2 extends Exception> ExceptionHandler throwIfInstance(Class<T1> te1,
                                                                                    Class<T2> te2)
                                                                             throws T1 extends Exception,
                                                                                    T2 extends Exception

Throws if the input exception is the instance of the one in the input classes

Throws:

T1 extends Exception

throwIfInstance

public <T1 extends Exception,T2 extends Exception,T3 extends Exception> ExceptionHandler throwIfInstance(Class<T1> te1,
                                                                                                         Class<T2> te2,
                                                                                                         Class<T3> te3)
                                                                                                  throws T1 extends Exception,
                                                                                                         T2 extends Exception,
                                                                                                         T3 extends Exception

Throws if the input exception is the instance of the one in the input classes

Throws:

T1 extends Exception

convertIfInstance

public <S extends Exception,T extends org.apache.thrift.TException> ExceptionHandler convertIfInstance(Class<S> source,
                                                                                                       Class<T> target)
                                                                                                throws T extends org.apache.thrift.TException

Converts the input exception to the target instance of class target, if the input exception is the instance of class source, throws the converted target exception.

Throws:

T extends org.apache.thrift.TException

toMetaExceptionIfInstance

public ExceptionHandler toMetaExceptionIfInstance(String message,
                                                  Class<?>... clzs)
                                           throws MetaException

Creates the MetaException with the given message, if the input exception is the instance of the one in the input classes, throws the created MetaException.

Throws:

MetaException

rethrowException

public static void rethrowException(Exception e)
                             throws org.apache.thrift.TException

Throws if the input exception is the instance of MetaException, NoSuchObjectException or TException, otherwise converts the exception to the MetaException and throws.

Throws:

org.apache.thrift.TException

throwMetaException

public static void throwMetaException(Exception e)
                               throws MetaException,
                                      NoSuchObjectException

Throws if the input exception is the instance of MetaException or NoSuchObjectException, otherwise converts the exception to the MetaException and throws.

Throws:

MetaException

NoSuchObjectException

newMetaException

public static MetaException newMetaException(Exception e)

Converts the input exception to MetaException and returns.

defaultRuntimeException

public RuntimeException defaultRuntimeException()

Converts the input exception to RuntimeException and returns.

defaultMetaException

public MetaException defaultMetaException()

defaultTException

public org.apache.thrift.TException defaultTException()