ContentNegotiationManagerFactoryBean (Spring Framework 4.1.2.RELEASE API)

java.lang.Object
- org.springframework.web.accept.ContentNegotiationManagerFactoryBean

All Implemented Interfaces:

Aware, FactoryBean<ContentNegotiationManager>, InitializingBean, ServletContextAware
```
public class ContentNegotiationManagerFactoryBean
extends java.lang.Object
implements FactoryBean<ContentNegotiationManager>, ServletContextAware, InitializingBean
```
A factory providing convenient access to a ContentNegotiationManager configured with one or more ContentNegotiationStrategy instances.
By default strategies for checking the extension of the request path and the Accept header are registered. The path extension check will perform lookups through the ServletContext and the Java Activation Framework (if present) unless media types are configured.

Since:

3.2

Author:

Rossen Stoyanchev

Constructor Summary

Constructors
Constructor and Description

ContentNegotiationManagerFactoryBean()

Constructors
Constructor and Description
`ContentNegotiationManagerFactoryBean()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addMediaType(java.lang.String fileExtension, MediaType mediaType)` Add a mapping from a file extension to a media type.
`void`	`addMediaTypes(java.util.Map<java.lang.String,MediaType> mediaTypes)` Add mappings from file extensions to media types.
`void`	`afterPropertiesSet()` Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
`ContentNegotiationManager`	`getObject()` Return an instance (possibly shared or independent) of the object managed by this factory.
`java.lang.Class<?>`	`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`	`setDefaultContentType(MediaType defaultContentType)` Set the default content type to use when no content type was requested.
`void`	`setDefaultContentTypeStrategy(ContentNegotiationStrategy defaultStrategy)` Configure a custom `ContentNegotiationStrategy` to use to determine the default content type to use when no content type was requested.
`void`	`setFavorParameter(boolean favorParameter)` Indicate whether a request parameter should be used to determine the requested media type with the 2nd highest priority, i.e.
`void`	`setFavorPathExtension(boolean favorPathExtension)` Indicate whether the extension of the request path should be used to determine the requested media type with the highest priority.
`void`	`setIgnoreAcceptHeader(boolean ignoreAcceptHeader)` Indicate whether the HTTP `Accept` header should be ignored altogether.
`void`	`setIgnoreUnknownPathExtensions(boolean ignoreUnknownPathExtensions)` Whether to ignore requests that have a file extension that does not match any mapped media types.
`void`	`setMediaTypes(java.util.Properties mediaTypes)` Add mappings from file extensions to media types represented as strings.
`void`	`setParameterName(java.lang.String parameterName)` Set the parameter name that can be used to determine the requested media type if the `setFavorParameter(boolean)` property is `true`.
`void`	`setServletContext(ServletContext servletContext)` Set the `ServletContext` that this object runs in.
`void`	`setUseJaf(boolean useJaf)` Indicate whether to use the Java Activation Framework as a fallback option to map from file extensions to media types.

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

- Constructor Detail
  - ContentNegotiationManagerFactoryBean
```
public ContentNegotiationManagerFactoryBean()
```
- Method Detail
  - setFavorPathExtension
```
public void setFavorPathExtension(boolean favorPathExtension)
```
    Indicate whether the extension of the request path should be used to determine the requested media type with the highest priority.
    By default this value is set to true in which case a request for /hotels.pdf will be interpreted as a request for "application/pdf" regardless of the Accept header.
  - setMediaTypes
```
public void setMediaTypes(java.util.Properties mediaTypes)
```
    Add mappings from file extensions to media types represented as strings.
    When this mapping is not set or when an extension is not found, the Java Action Framework, if available, may be used if enabled via setFavorPathExtension(boolean).
    
    See Also:
    
    addMediaType(String, MediaType), addMediaTypes(Map)
  - addMediaType
```
public void addMediaType(java.lang.String fileExtension,
                         MediaType mediaType)
```
    Add a mapping from a file extension to a media type.
    If no mapping is added or when an extension is not found, the Java Action Framework, if available, may be used if enabled via setFavorPathExtension(boolean).
  - addMediaTypes
```
public void addMediaTypes(java.util.Map<java.lang.String,MediaType> mediaTypes)
```
    Add mappings from file extensions to media types.
    If no mappings are added or when an extension is not found, the Java Action Framework, if available, may be used if enabled via setFavorPathExtension(boolean).
  - setIgnoreUnknownPathExtensions
```
public void setIgnoreUnknownPathExtensions(boolean ignoreUnknownPathExtensions)
```
    Whether to ignore requests that have a file extension that does not match any mapped media types. Setting this to false will result in a HttpMediaTypeNotAcceptableException when there is no match.
    By default this is set to true.
  - setUseJaf
```
public void setUseJaf(boolean useJaf)
```
    Indicate whether to use the Java Activation Framework as a fallback option to map from file extensions to media types. This is used only when setFavorPathExtension(boolean) is set to true.
    The default value is true.
    
    See Also:
    
    setParameterName(java.lang.String), setMediaTypes(java.util.Properties)
  - setFavorParameter
```
public void setFavorParameter(boolean favorParameter)
```
    Indicate whether a request parameter should be used to determine the requested media type with the 2nd highest priority, i.e. after path extensions but before the Accept header.
    The default value is false. If set to to true, a request for /hotels?format=pdf will be interpreted as a request for "application/pdf" regardless of the Accept header.
    To use this option effectively you must also configure the MediaType type mappings via setMediaTypes(Properties).
    
    See Also:
    
    setParameterName(java.lang.String)
  - setParameterName
```
public void setParameterName(java.lang.String parameterName)
```
    Set the parameter name that can be used to determine the requested media type if the setFavorParameter(boolean) property is true.
    The default parameter name is "format".
  - setIgnoreAcceptHeader
```
public void setIgnoreAcceptHeader(boolean ignoreAcceptHeader)
```
    Indicate whether the HTTP Accept header should be ignored altogether. If set the Accept header is checked at the 3rd highest priority, i.e. after the request path extension and possibly a request parameter if configured.
    By default this value is set to false.
  - setDefaultContentType
```
public void setDefaultContentType(MediaType defaultContentType)
```
    Set the default content type to use when no content type was requested.
    Note that internally this method creates and adds a FixedContentNegotiationStrategy. Alternatively you can also provide a custom strategy via setDefaultContentTypeStrategy(org.springframework.web.accept.ContentNegotiationStrategy).
  - setDefaultContentTypeStrategy
```
public void setDefaultContentTypeStrategy(ContentNegotiationStrategy defaultStrategy)
```
    Configure a custom ContentNegotiationStrategy to use to determine the default content type to use when no content type was requested.
    However also consider using setDefaultContentType(org.springframework.http.MediaType) which provides a simpler alternative to doing the same.
    
    Since:
    
    4.1.2
  - setServletContext
```
public void setServletContext(ServletContext servletContext)
```
    Description copied from interface: ServletContextAware
    
    Set the ServletContext that this object runs in.
    Invoked after population of normal bean properties but before an init callback like InitializingBean's afterPropertiesSet or a custom init-method. Invoked after ApplicationContextAware's setApplicationContext.
    
    Specified by:
    
    setServletContext in interface ServletContextAware
    
    Parameters:
    
    servletContext - ServletContext object to be used by this object
    
    See Also:
    
    InitializingBean.afterPropertiesSet(), ApplicationContextAware.setApplicationContext(org.springframework.context.ApplicationContext)
  - afterPropertiesSet
```
public void afterPropertiesSet()
```
    Description copied from interface: InitializingBean
    
    Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
    This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.
    
    Specified by:
    
    afterPropertiesSet in interface InitializingBean
  - getObject
```
public ContentNegotiationManager 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<ContentNegotiationManager>
    
    Returns:
    
    an instance of the bean (can be null)
    
    See Also:
    
    FactoryBeanNotInitializedException
  - getObjectType
```
public java.lang.Class<?> 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<ContentNegotiationManager>
    
    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.
    
    Specified by:
    
    isSingleton in interface FactoryBean<ContentNegotiationManager>
    
    Returns:
    
    whether the exposed object is a singleton
    
    See Also:
    
    FactoryBean.getObject(), SmartFactoryBean.isPrototype()

Class ContentNegotiationManagerFactoryBean

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ContentNegotiationManagerFactoryBean

Method Detail

setFavorPathExtension

setMediaTypes

addMediaType

addMediaTypes

setIgnoreUnknownPathExtensions

setUseJaf

setFavorParameter

setParameterName

setIgnoreAcceptHeader

setDefaultContentType

setDefaultContentTypeStrategy

setServletContext

afterPropertiesSet

getObject

getObjectType

isSingleton