ApplicationHandler (Jersey 2.37 API)

java.lang.Object
- org.glassfish.jersey.server.ApplicationHandler

All Implemented Interfaces:

ContainerLifecycleListener
```
public final class ApplicationHandler
extends Object
implements ContainerLifecycleListener
```
Jersey server-side application handler.
Container implementations use the ApplicationHandler API to process requests by invoking the handle(request) method on a configured application handler instance.

ApplicationHandler provides two implementations of config that can be injected into the application classes. The first is resource config which implements Configuration itself and is configured by the user. The resource config is not modified by this application handler so the future reloads of the application is not disrupted by providers found on a classpath. This config can be injected only as ResourceConfig or Application. The second one can be injected into the Configuration parameters / fields and contains info about all the properties / provider classes / provider instances from the resource config and also about all the providers found during processing classes registered under server properties. After the application handler is initialized both configurations are marked as read-only.

Application handler instance also acts as an aggregate ContainerLifecycleListener instance for the associated application. It aggregates all the registered container lifecycle listeners under a single, umbrella listener, represented by this application handler instance, that delegates all container lifecycle listener method calls to all the registered listeners. Jersey containers are expected to invoke the container lifecycle methods directly on the active ApplicationHandler instance. The application handler will then make sure to delegate the lifecycle listener calls further to all the container lifecycle listeners registered within the application. Additionally, invoking the ContainerLifecycleListener.onShutdown(Container) method on this application handler instance will release all the resources associated with the underlying application instance as well as close the application-specific injection manager.

Author:

Pavel Bucek, Jakub Podlesak, Marek Potociar, Libor Kramolis

See Also:

ResourceConfig, Configuration, ContainerProvider

Constructor Summary

Constructors
Constructor and Description
`ApplicationHandler()` Create a new Jersey application handler using a default configuration.
`ApplicationHandler(javax.ws.rs.core.Application application)` Create a new Jersey server-side application handler configured by an instance of a `JAX-RS Application sub-class`.
`ApplicationHandler(javax.ws.rs.core.Application application, org.glassfish.jersey.internal.inject.Binder customBinder)` Create a new Jersey server-side application handler configured by an instance of a `ResourceConfig` and a custom `Binder`.
`ApplicationHandler(javax.ws.rs.core.Application application, org.glassfish.jersey.internal.inject.Binder customBinder, Object parentManager)` Create a new Jersey server-side application handler configured by an instance of a `ResourceConfig`, custom `Binder` and a parent used by `InjectionManager`.
`ApplicationHandler(Class<? extends javax.ws.rs.core.Application> jaxrsApplicationClass)` Create a new Jersey server-side application handler configured by a `JAX-RS Application (sub-)class`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Future<ContainerResponse>`	`apply(ContainerRequest requestContext)` Invokes a request and returns the `response future`.
`Future<ContainerResponse>`	`apply(ContainerRequest request, OutputStream outputStream)` Invokes a request and returns the `response future`.
`ResourceConfig`	`getConfiguration()` Get the application configuration.
`org.glassfish.jersey.internal.inject.InjectionManager`	`getInjectionManager()` Returns `InjectionManager` relevant to current application.
`void`	`handle(ContainerRequest request)` The main request/response processing entry point for Jersey container implementations.
`void`	`onReload(Container container)` Invoked when the `container` has been reloaded.
`void`	`onShutdown(Container container)` Invoke at the `container` shut-down.
`void`	`onStartup(Container container)` Invoked at the `container` start-up.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ApplicationHandler
```
public ApplicationHandler()
```
    Create a new Jersey application handler using a default configuration.
  - ApplicationHandler
```
public ApplicationHandler(Class<? extends javax.ws.rs.core.Application> jaxrsApplicationClass)
```
    Create a new Jersey server-side application handler configured by a JAX-RS Application (sub-)class.
    
    Parameters:
    
    jaxrsApplicationClass - JAX-RS Application (sub-)class that will be instantiated and used to configure the new Jersey application handler.
  - ApplicationHandler
```
public ApplicationHandler(javax.ws.rs.core.Application application)
```
    Create a new Jersey server-side application handler configured by an instance of a JAX-RS Application sub-class.
    
    Parameters:
    
    application - an instance of a JAX-RS Application (sub-)class that will be used to configure the new Jersey application handler.
  - ApplicationHandler
```
public ApplicationHandler(javax.ws.rs.core.Application application,
                          org.glassfish.jersey.internal.inject.Binder customBinder)
```
    Create a new Jersey server-side application handler configured by an instance of a ResourceConfig and a custom Binder.
    
    Parameters:
    
    application - an instance of a JAX-RS Application (sub-)class that will be used to configure the new Jersey application handler.
    
    customBinder - additional custom bindings used to configure the application's.
  - ApplicationHandler
```
public ApplicationHandler(javax.ws.rs.core.Application application,
                          org.glassfish.jersey.internal.inject.Binder customBinder,
                          Object parentManager)
```
    Create a new Jersey server-side application handler configured by an instance of a ResourceConfig, custom Binder and a parent used by InjectionManager.
    
    Parameters:
    
    application - an instance of a JAX-RS Application (sub-)class that will be used to configure the new Jersey application handler.
    
    customBinder - additional custom bindings used during InjectionManager creation.
    
    parentManager - parent used in InjectionManager for a specific DI provider.
- Method Detail
  - apply
```
public Future<ContainerResponse> apply(ContainerRequest requestContext)
```
    Invokes a request and returns the response future.
    
    Parameters:
    
    requestContext - request data.
    
    Returns:
    
    response future.
  - apply
```
public Future<ContainerResponse> apply(ContainerRequest request,
                                       OutputStream outputStream)
```
    Invokes a request and returns the response future.
    
    Parameters:
    
    request - request data.
    
    outputStream - response output stream.
    
    Returns:
    
    response future.
  - handle
```
public void handle(ContainerRequest request)
```
    The main request/response processing entry point for Jersey container implementations.
    The method invokes the request processing of the provided container request context and uses the container response writer to suspend & resume the processing as well as write the response back to the container.
    
    The the security context stored in the container request context is bound as an injectable instance in the scope of the processed request context. Also, any custom scope injections are initialized in the current request scope.
    
    Parameters:
    
    request - container request context of the current request.
  - getInjectionManager
```
public org.glassfish.jersey.internal.inject.InjectionManager getInjectionManager()
```
    Returns InjectionManager relevant to current application.
    
    Returns:
    
    InjectionManager instance.
    
    Since:
    
    2.26
  - getConfiguration
```
public ResourceConfig getConfiguration()
```
    Get the application configuration.
    
    Returns:
    
    application configuration.
  - onStartup
```
public void onStartup(Container container)
```
    Description copied from interface: ContainerLifecycleListener
    
    Invoked at the container start-up. This method is invoked even when application is reloaded and new instance of application has started.
    
    Specified by:
    
    onStartup in interface ContainerLifecycleListener
    
    Parameters:
    
    container - container that has been started.
  - onReload
```
public void onReload(Container container)
```
    Description copied from interface: ContainerLifecycleListener
    
    Invoked when the container has been reloaded.
    
    Specified by:
    
    onReload in interface ContainerLifecycleListener
    
    Parameters:
    
    container - container that has been reloaded.
  - onShutdown
```
public void onShutdown(Container container)
```
    Description copied from interface: ContainerLifecycleListener
    
    Invoke at the container shut-down. This method is invoked even before the application is being stopped as a part of reload.
    
    Specified by:
    
    onShutdown in interface ContainerLifecycleListener
    
    Parameters:
    
    container - container that has been shut down.

Class ApplicationHandler

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ApplicationHandler

ApplicationHandler

ApplicationHandler

ApplicationHandler

ApplicationHandler

Method Detail

apply

apply

handle

getInjectionManager

getConfiguration

onStartup

onReload

onShutdown