org.apache.ambari.server.utils

Class LoggingPreconditions

java.lang.Object

org.apache.ambari.server.utils.LoggingPreconditions

public class LoggingPreconditions
extends Object

Constructor Summary

Constructors

Constructor and Description
LoggingPreconditions(org.slf4j.Logger logger)

Method Summary

Modifier and Type	Method and Description
void	checkArgument(boolean expression, String errorMessage, Object... messageParams)
void	checkNotNull(Object o, String errorMessage, Object... messageParams)
void	checkState(boolean expression, String errorMessage, Object... messageParams)
void	logAndThrow(Function<String,RuntimeException> exceptionCreator, String errorMessage, Object... messageParams) Formats an error message with parameters using String.format, logs it using logger, and throws an unchecked exception with the same message created by exceptionCreator.
<T> T	wrapInUnchecked(Exception exception, BiFunction<String,Exception,RuntimeException> uncheckedWrapper, String errorMessage, Object... messageParams) Wraps exception in an unchecked exception created by uncheckedWrapper, and always throws the unchecked exception.

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggingPreconditions

public LoggingPreconditions(org.slf4j.Logger logger)

Method Detail

checkNotNull

public void checkNotNull(Object o,
                         String errorMessage,
                         Object... messageParams)

checkArgument

public void checkArgument(boolean expression,
                          String errorMessage,
                          Object... messageParams)

checkState

public void checkState(boolean expression,
                       String errorMessage,
                       Object... messageParams)

wrapInUnchecked

public <T> T wrapInUnchecked(Exception exception,
                             BiFunction<String,Exception,RuntimeException> uncheckedWrapper,
                             String errorMessage,
                             Object... messageParams)

Wraps exception in an unchecked exception created by uncheckedWrapper, and always throws the unchecked exception.

Returns:

null to make the compiler happy

logAndThrow

public void logAndThrow(Function<String,RuntimeException> exceptionCreator,
                        String errorMessage,
                        Object... messageParams)

Formats an error message with parameters using String.format, logs it using logger, and throws an unchecked exception with the same message created by exceptionCreator.