com.graphaware.runtime.config.util

Class ConfigUtils

java.lang.Object

com.graphaware.runtime.config.util.ConfigUtils

public final class ConfigUtils
extends Object

Utilities for runtime configurations.

Method Summary

Modifier and Type	Method and Description
static <T> T	instantiate(Map<String,String> config, String configKey, String tryingToInstantiateWhat, String whatHappensWhenInstantiationFails) Create an instance of a class specified in the config under configKey.

Methods inherited from class java.lang.Object

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

Method Detail

instantiate

public static <T> T instantiate(Map<String,String> config,
                                String configKey,
                                String tryingToInstantiateWhat,
                                String whatHappensWhenInstantiationFails)

Create an instance of a class specified in the config under configKey. This is done exclusively by using a no-arg getInstance() method, or a public no-arg constructor, in this order.

Type Parameters:

T - type of the class being instantiated.

Parameters:

config - in which to look for FQN of the class to instantiate.

configKey - under which to look.

tryingToInstantiateWhat - for logging purposes, what is it that is being instantiated.

whatHappensWhenInstantiationFails - for logging purposes, what will be the impact of failing to instantiate the class.

Returns:

instantiated class.