org.apache.lens.server.api.util

Class LensUtil

java.lang.Object

org.apache.lens.server.api.util.LensUtil

public final class LensUtil
extends Object

Utility methods for Lens

Method Summary

Modifier and Type	Method and Description
static Throwable	getCause(Throwable e)
static String	getCauseMessage(Throwable e) Get the message corresponding to base cause.
static <K,V> HashMap<K,V>	getHashMap(Object... args)
static <T> T	getImplementation(String factoryName, org.apache.hadoop.conf.Configuration conf)
static <T> com.google.common.collect.ImmutableSet<T>	getImplementations(String factoriesKey, org.apache.hadoop.conf.Configuration conf)
static <T> Set<T>	getImplementationsMutable(String factoriesKey, org.apache.hadoop.conf.Configuration conf)
static boolean	isSocketException(Throwable e)

Methods inherited from class java.lang.Object

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

Method Detail

getCauseMessage

public static String getCauseMessage(@NonNull
                                     Throwable e)

Get the message corresponding to base cause. If no cause is available or no message is available parent's message is returned.

Parameters:

e -

Returns:

message

getCause

public static Throwable getCause(@NonNull
                                 Throwable e)

isSocketException

public static boolean isSocketException(@NonNull
                                        Throwable e)

getImplementationsMutable

public static <T> Set<T> getImplementationsMutable(String factoriesKey,
                                                   org.apache.hadoop.conf.Configuration conf)

getImplementations

public static <T> com.google.common.collect.ImmutableSet<T> getImplementations(String factoriesKey,
                                                                               org.apache.hadoop.conf.Configuration conf)

getImplementation

public static <T> T getImplementation(String factoryName,
                                      org.apache.hadoop.conf.Configuration conf)

getHashMap

public static <K,V> HashMap<K,V> getHashMap(Object... args)