stream.runtime.setup.factory

Class ObjectFactory

java.lang.Object

stream.util.Variables

stream.runtime.setup.factory.ObjectFactory

All Implemented Interfaces:

Serializable, Map<String,String>

public class ObjectFactory
extends Variables

This class implements a generic object factory that is able to instantiate objects from XML elements.

Author:

Christian Bockermann <chris@jwall.org>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
(package private) RuntimeClassLoader	classLoader
(package private) static Map<String,String>	classNames
(package private) static String[]	DEFAULT_PACKAGES
(package private) static Map<String,Integer>	globalObjectNumbers
(package private) static org.slf4j.Logger	log
(package private) static List<ObjectCreator>	objectCreators
(package private) List<String>	searchPath
private static long	serialVersionUID
(package private) Set<URL>	urls

Fields inherited from class stream.util.Variables

VAR_PREFIX, VAR_SUFFIX, variables

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ObjectFactory()

Method Summary

Modifier and Type	Method and Description
void	addClassPathUrls(Collection<URL> newUrls)
void	addPackage(String pkg)
Object	create(Element node)
Object	create(Element node, Map<String,String> params, Variables local)
Object	create(String className, Map<String,String> parameter, Element config)
Object	create(String className, Map<String,String> parameter, Element config, Variables local)
static Element	createConfigDocument(Element node) Extract the config Element as a new Document.
String	findClassForElement(Element node)
private URL	findDocumentation(String className)
Map<String,String>	getAttributes(Node node)
static String	getNextIdentifier(String obj)
List<String>	getSearchPaths()
static ObjectFactory	newInstance()
static void	register(String name, Class<?> clazz)
static void	registerObjectCreator(ObjectCreator creator)

Methods inherited from class stream.util.Variables

addVariables, clear, containsKey, containsKey, containsValue, entrySet, expand, expand, expand, expandAll, expandAndAdd, get, get, isEmpty, keySet, load, put, putAll, remove, set, size, substitute, toString, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

log

static org.slf4j.Logger log

globalObjectNumbers

static Map<String,Integer> globalObjectNumbers

classNames

static final Map<String,String> classNames

DEFAULT_PACKAGES

static final String[] DEFAULT_PACKAGES

classLoader

final RuntimeClassLoader classLoader

urls

final Set<URL> urls

searchPath

final List<String> searchPath

objectCreators

static final List<ObjectCreator> objectCreators

Constructor Detail

ObjectFactory

protected ObjectFactory()

Method Detail

createConfigDocument

public static final Element createConfigDocument(Element node)
                                          throws ParserConfigurationException

Extract the config Element as a new Document.

Parameters:

node -

Returns:

Throws:

ParserConfigurationException

addClassPathUrls

public void addClassPathUrls(Collection<URL> newUrls)

addPackage

public void addPackage(String pkg)

getSearchPaths

public List<String> getSearchPaths()

register

public static void register(String name,
                            Class<?> clazz)

registerObjectCreator

public static void registerObjectCreator(ObjectCreator creator)

newInstance

public static ObjectFactory newInstance()

getNextIdentifier

public static String getNextIdentifier(String obj)

create

public Object create(Element node)
              throws Exception

Throws:

Exception

create

public Object create(Element node,
                     Map<String,String> params,
                     Variables local)
              throws Exception

Parameters:

node -

variables -

Returns:

Throws:

Exception

create

public Object create(String className,
                     Map<String,String> parameter,
                     Element config)
              throws Exception

Throws:

Exception

create

public Object create(String className,
                     Map<String,String> parameter,
                     Element config,
                     Variables local)
              throws Exception

Throws:

Exception

getAttributes

public Map<String,String> getAttributes(Node node)

Parameters:

node -

Returns:

findClassForElement

public String findClassForElement(Element node)
                           throws Exception

Throws:

Exception

findDocumentation

private URL findDocumentation(String className)