com.networknt.service

Class ServiceUtil

java.lang.Object

com.networknt.service.ServiceUtil

public class ServiceUtil
extends Object

Utility functions for instantiating objects that follow the configuration structure of the service.yml.

Author:

Nicholas Azar

Constructor Summary

Constructors

Constructor and Description
ServiceUtil()

Method Summary

Modifier and Type	Method and Description
static Object	construct(Object something) Instantiates and returns an object out of a given configuration.
static Object	constructByNamedParams(Class clazz, Map params) Build an object out of a given class and a map for field names to values.
static Object	constructByParameterizedConstructor(Class clazz, List parameters) Build an object out of a given class and a list of single element maps of object type to value.

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceUtil

public ServiceUtil()

Method Detail

construct

public static Object construct(Object something)
                        throws Exception

Instantiates and returns an object out of a given configuration. If the configuration is simply a class name, assume default empty constructor. If the configuration is a map, assume keyed by class name, with values being one of 2 options: - map: keys are field names, values are field values. - list: items are each maps of type to value, constructor is called with given set.

Throws:

Exception

constructByNamedParams

public static Object constructByNamedParams(Class clazz,
                                            Map params)
                                     throws Exception

Build an object out of a given class and a map for field names to values.

Parameters:

clazz - The class to be created.

params - A map of the parameters.

Returns:

An instantiated object.

Throws:

Exception

constructByParameterizedConstructor

public static Object constructByParameterizedConstructor(Class clazz,
                                                         List parameters)
                                                  throws Exception

Build an object out of a given class and a list of single element maps of object type to value. A constructor is searched for that matches the given set. If not found, the default is attempted.

Parameters:

clazz - The class to be created.

parameters - A list of single element maps of object type to value.

Returns:

An instantiated parameters.

Throws:

Exception