org.springframework.remoting.support

Class SimpleHttpServerFactoryBean

java.lang.Object

org.springframework.remoting.support.SimpleHttpServerFactoryBean

All Implemented Interfaces:

DisposableBean, FactoryBean<com.sun.net.httpserver.HttpServer>, InitializingBean

@UsesSunHttpServer
public class SimpleHttpServerFactoryBean
extends java.lang.Object
implements FactoryBean<com.sun.net.httpserver.HttpServer>, InitializingBean, DisposableBean

FactoryBean that creates a simple HTTP server, based on the HTTP server that is included in Sun's JRE 1.6. Starts the HTTP server on initialization and stops it on destruction. Exposes the resulting HttpServer object.

Allows for registering HttpHandlers for specific context paths. Alternatively, register such context-specific handlers programmatically on the HttpServer itself.

Since:

2.5.1

Author:

Juergen Hoeller, Arjen Poutsma

See Also:

setPort(int), setContexts(java.util.Map<java.lang.String, com.sun.net.httpserver.HttpHandler>)

Field Summary

Fields

Modifier and Type	Field and Description
protected Log	logger

Constructor Summary

Constructors

Constructor and Description
SimpleHttpServerFactoryBean()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.
void	destroy() Invoked by the containing BeanFactory on destruction of a bean.
com.sun.net.httpserver.HttpServer	getObject() Return an instance (possibly shared or independent) of the object managed by this factory.
java.lang.Class<? extends com.sun.net.httpserver.HttpServer>	getObjectType() Return the type of object that this FactoryBean creates, or null if not known in advance.
boolean	isSingleton() Is the object managed by this factory a singleton? That is, will FactoryBean.getObject() always return the same object (a reference that can be cached)?
void	setAuthenticator(com.sun.net.httpserver.Authenticator authenticator) Register a common Authenticator to be applied to all locally registered contexts.
void	setBacklog(int backlog) Specify the HTTP server's TCP backlog.
void	setContexts(java.util.Map<java.lang.String,com.sun.net.httpserver.HttpHandler> contexts) Register HttpHandlers for specific context paths.
void	setExecutor(java.util.concurrent.Executor executor) Set the JDK concurrent executor to use for dispatching incoming requests.
void	setFilters(java.util.List<com.sun.net.httpserver.Filter> filters) Register common Filters to be applied to all locally registered contexts.
void	setHostname(java.lang.String hostname) Specify the HTTP server's hostname to bind to.
void	setPort(int port) Specify the HTTP server's port.
void	setShutdownDelay(int shutdownDelay) Specify the number of seconds to wait until HTTP exchanges have completed when shutting down the HTTP server.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Log logger

Constructor Detail

SimpleHttpServerFactoryBean

public SimpleHttpServerFactoryBean()

Method Detail

setPort

public void setPort(int port)

Specify the HTTP server's port. Default is 8080.

setHostname

public void setHostname(java.lang.String hostname)

Specify the HTTP server's hostname to bind to. Default is localhost; can be overridden with a specific network address to bind to.

setBacklog

public void setBacklog(int backlog)

Specify the HTTP server's TCP backlog. Default is -1, indicating the system's default value.

setShutdownDelay

public void setShutdownDelay(int shutdownDelay)

Specify the number of seconds to wait until HTTP exchanges have completed when shutting down the HTTP server. Default is 0.

setExecutor

public void setExecutor(java.util.concurrent.Executor executor)

Set the JDK concurrent executor to use for dispatching incoming requests.

See Also:

HttpServer.setExecutor(java.util.concurrent.Executor)

setContexts

public void setContexts(java.util.Map<java.lang.String,com.sun.net.httpserver.HttpHandler> contexts)

Register HttpHandlers for specific context paths.

Parameters:

contexts - a Map with context paths as keys and HttpHandler objects as values

See Also:

SimpleHttpInvokerServiceExporter, SimpleHessianServiceExporter

setFilters

public void setFilters(java.util.List<com.sun.net.httpserver.Filter> filters)

Register common Filters to be applied to all locally registered contexts.

setAuthenticator

public void setAuthenticator(com.sun.net.httpserver.Authenticator authenticator)

Register a common Authenticator to be applied to all locally registered contexts.

afterPropertiesSet

public void afterPropertiesSet()
                        throws java.io.IOException

Description copied from interface: InitializingBean

Invoked by the containing BeanFactory after it has set all bean properties and satisfied BeanFactoryAware, ApplicationContextAware etc.

This method allows the bean instance to perform validation of its overall configuration and final initialization when all bean properties have been set.

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

java.io.IOException

getObject

public com.sun.net.httpserver.HttpServer getObject()

Description copied from interface: FactoryBean

Return an instance (possibly shared or independent) of the object managed by this factory.

As with a BeanFactory, this allows support for both the Singleton and Prototype design pattern.

If this FactoryBean is not fully initialized yet at the time of the call (for example because it is involved in a circular reference), throw a corresponding FactoryBeanNotInitializedException.

As of Spring 2.0, FactoryBeans are allowed to return null objects. The factory will consider this as normal value to be used; it will not throw a FactoryBeanNotInitializedException in this case anymore. FactoryBean implementations are encouraged to throw FactoryBeanNotInitializedException themselves now, as appropriate.

Specified by:

getObject in interface FactoryBean<com.sun.net.httpserver.HttpServer>

Returns:

an instance of the bean (can be null)

See Also:

FactoryBeanNotInitializedException

getObjectType

public java.lang.Class<? extends com.sun.net.httpserver.HttpServer> getObjectType()

Description copied from interface: FactoryBean

Return the type of object that this FactoryBean creates, or null if not known in advance.

This allows one to check for specific types of beans without instantiating objects, for example on autowiring.

In the case of implementations that are creating a singleton object, this method should try to avoid singleton creation as far as possible; it should rather estimate the type in advance. For prototypes, returning a meaningful type here is advisable too.

This method can be called before this FactoryBean has been fully initialized. It must not rely on state created during initialization; of course, it can still use such state if available.

NOTE: Autowiring will simply ignore FactoryBeans that return null here. Therefore it is highly recommended to implement this method properly, using the current state of the FactoryBean.

Specified by:

getObjectType in interface FactoryBean<com.sun.net.httpserver.HttpServer>

Returns:

the type of object that this FactoryBean creates, or null if not known at the time of the call

See Also:

ListableBeanFactory.getBeansOfType(java.lang.Class<T>)

isSingleton

public boolean isSingleton()

Description copied from interface: FactoryBean

Is the object managed by this factory a singleton? That is, will FactoryBean.getObject() always return the same object (a reference that can be cached)?

NOTE: If a FactoryBean indicates to hold a singleton object, the object returned from getObject() might get cached by the owning BeanFactory. Hence, do not return true unless the FactoryBean always exposes the same reference.

The singleton status of the FactoryBean itself will generally be provided by the owning BeanFactory; usually, it has to be defined as singleton there.

NOTE: This method returning false does not necessarily indicate that returned objects are independent instances. An implementation of the extended SmartFactoryBean interface may explicitly indicate independent instances through its SmartFactoryBean.isPrototype() method. Plain FactoryBean implementations which do not implement this extended interface are simply assumed to always return independent instances if the isSingleton() implementation returns false.

The default implementation returns true, since a FactoryBean typically manages a singleton instance.

Specified by:

isSingleton in interface FactoryBean<com.sun.net.httpserver.HttpServer>

Returns:

whether the exposed object is a singleton

See Also:

FactoryBean.getObject(), SmartFactoryBean.isPrototype()

destroy

public void destroy()

Description copied from interface: DisposableBean

Invoked by the containing BeanFactory on destruction of a bean.

Specified by:

destroy in interface DisposableBean