The servlet spec recommends removing path parameters from the
contextPath, servletPath, and pathInfo but not from the requestURI.
This poses a challenge for the UrlPathHelper, which determines the
lookup path by comparing the above.
This change introduces a method that matches the requestURI to the
contextPath and servletPath ignoring path parameters (i.e. matrix
variables) for comparison purposes while also preserving them in the
resulting lookup path.
The MVC namespace and the MVC Java config now allow configuring
CallableProcessingInterceptor and DeferredResultProcessingInterceptor
instances.
Issue: SPR-9914
New afterTimeout and afterCompletion callbacks
afterTimeout can provide a concurrent result to be used instead of the
one that could not be set or returned on time
Interceptor exceptions cause async processing to resume treating the
exception as the concurrent result
Adapter classes for convenient implementation of the interfaces
Issue: SPR-9914
Prior to this change, LocalJaxWsServiceFactory allowed specifying a WSDL
document URL. Now users may also specify a WSDL document represented as
a Spring Resource object for convenience.
Issue: SPR-9909
Some servlet containers (iPlanet) parse the Accept header and return
multiple values from request.getHeader("Accept"). The HttpHeaders
getAccept method has been updated to accommodate that hopefully
without causing any other issues.
The extra functionality is in effect only if we find only one
MediaType and there is more than one value for the 'Accept' header.
Issue: SPR-9655
Previously UriComponentsBuilder used a regular expression for parsing
query name-value pairs where both name and value were expected to not
contain neither '&', not '='. The idea is that the presence of reserved
characters makes it impossible to guess correctly how to parse the
query string (e.g. a=b&c).
This change relaxes the constraint on query param values, allowing them
to contain '='. In effect '&' is the ultimate separator of name-value
pairs, and any '=' in values is ignored. For example "q=1USD=?EUR" is
interpreted as "q equals '1USD=?EUR'".
Issue: SPR-9832
An additional update (after the last commit) of the "includes" and
"isCompatibleWith" methods of MediaType to accomodate wildcards
in media types with a suffix.
Issue: SPR-9841
The "includes" and "isCompatibleWith" methods of MediaType take into
account media types with suffices (e.g. application/soap+xml) including
wildcards with suffices (e.g. application/*+xml). However before this
change, the isWildcardSubtype() method returned true only for subtype
"*". Now a media type such as application/*+xml is also recognized as
having a wildcard subtype.
Issue: SPR-9841
Before this change the PathExtensionContentNegotiationStrategy accessed
the ServletContext via request.getServletContext, which is Servlet 3
specific. To work around it, there is now a Servlet-specific sub-class
that accepts a ServletContext as a constructor argument.
The ContentNegotiationManagerFactoryBean is now ServletContextAware and
if it has a ServletContext it creates the Servlet-specific sub-class
of PathExtensionContentNegotiationStrategy.
The ContentNegotiationManagerFactoryBean is now also used in several
places internally -- MVC namespace, MVC Java config, and the
ContentNegotiatingViewResolver -- to reduce duplication.
Issue: SPR-9826
Before this commit, UriComponentsBuilder did not handle opaque URIs at
all. After this commit it does.
Support is introduced by making UriComponents an abstract base class,
and having two concrete subclasses: HierarchicalUriComponents and
OpaqueUriComponents. The former is more or less the same as the old
UriComponents class.
Issue: SPR-9798
This new converter uses StringHttpMessageConverter internally combined
with a ConversionService for converting String content to and from the
target object type.
Issue: SPR-9738
LiveBeansView includes MBean exposure as well as Servlet exposure, with JSON as the initial output format. In order to identify an MBean per application, a new "getApplicationName()" method got introduced on the ApplicationContext interface, returning the Servlet container context path in case of a web application and defaulting to the empty String. MBean exposure can be driven by the "spring.liveBeansView.mbeanDomain" property, e.g. specifying "liveBeansView" as its value, leading to "liveBeansView:application=" or "liveBeansView:application=/myapp" style names for the per-application MBean.
Issue: SPR-9662
This change introduces two new interceptors with callback methods
for concurrent request handling. These interfaces are
CallableProcessingInterceptor and DeferredResultProcessingInterceptor.
Unlike a HandlerInterceptor, and its AsyncHandlerInterceptor sub-type,
which intercepts the invocation of a handler in he main request
processing thread, the two new interfaces are aimed at intercepting the
asynchronous execution of a Callable or a DeferredResult.
This allows for the registration of thread initialization logic in the
case of Callable executed with an AsyncTaskExecutor, or for centralized
tracking of the completion and/or expiration of a DeferredResult.
While HandlerMethod instances are cached for lookup purposes, a new
ServletInvocableHandlerMethod instance has to be created prior to each
invocation since handlers may have non-singleton scope semantics.
This change reduces the overhead of creating per request instances
by using a logger with a fixed name rather than relying on getClass()
and also by copying introspected method parameters from the cached
HandlerMethod instance.
Issue: SPR-9747, SPR-9748
This change fixes a cyclical package dependency.
The change also improves the implementation of
WebAsyncManager.hasConcurrentResult() following the resolution of
Apache issue id=53632 and the release of Apache Tomcat 7.0.30 that
contains the fix.
This commit avoids eager creation of Environment instances, favoring
delegation of already existing Environment objects where possible. For
example, FrameworkServlet creates an ApplicationContext; both require
a StandardServletEnvironment instance, and prior to this change, two
instances were created where one would suffice - indeed these two
instances may reasonably be expected to be the same. Now, the
FrameworkServlet defers creation of its Environment, allowing users to
supply a custom instance via its #setEnvironment method (e.g. within a
WebApplicationInitializer); the FrameworkServlet then takes care to
delegate that instance to the ApplicationContext created
in #createWebApplicationContext.
This behavior produces more consistent behavior with regard to
delegation of the environment, saves unnecessary cycles by avoiding
needless instantiation and calls to methods like
StandardServletEnvironment#initPropertySources and leads to better
logging output, as the user sees only one Environment created and
initialized when working with the FrameworkServlet/DispatcherServlet.
This commit also mirrors these changes across the corresponding
Portlet* classes.
Issue: SPR-9763
A new @MatrixVariable annotation allows injecting matrix variables
into @RequestMapping methods. The matrix variables may appear in any
path segment and should be wrapped in a URI template for request
mapping purposes to ensure request matching is not affected by the
order or the presence/absence of such variables. The @MatrixVariable
annotation has an optional "pathVar" attribute that can be used to
refer to the URI template where a matrix variable is located.
Previously, ";" (semicolon) delimited content was removed from the
path used for request mapping purposes. To preserve backwards
compatibility that continues to be the case (except for the MVC
namespace and Java config) and may be changed by setting the
"removeSemicolonContent" property of RequestMappingHandlerMapping to
"false". Applications using the MVC namespace and Java config do not
need to do anything further to extract and use matrix variables.
Issue: SPR-5499, SPR-7818
Rename ExceptionHandlerSupport to ResponseEntityExceptionHandler and
emphasize the contrast to DefaultHandlerExceptionResovler -- i.e.
one returns a ResponseEntity and relies on message converters while
the other returns a ModelAndView and relies on view resolution.
Issue: SPR-9290
This change makes it possible to declare an @RequestBody argument with
a generic type (e.g. List<Foo>). If a GenericHttpMessageConverter
implementation supports the method argument, then the request will be
converted to the apropiate target type.
The new GenericHttpMessageConverter is implemented by the
MappingJacksonHttpMessageConverter and also by a new
Jaxb2CollectionHttpMessageConverter that can read read a generic
Collection where the generic type is a JAXB type annotated with
@XmlRootElement or @XmlType.
Issue: SPR-9570
This change makes it possible to use the RestTemplate to read an HTTP
response into a target generic type object. The RestTemplate has three
new exchange(...) methods that accept ParameterizedTypeReference -- a
new class that enables capturing and passing generic type info.
See the Javadoc of the three new methods in RestOperations for a
short example.
To support this feature, the HttpMessageConverter is now extended by
GenericHttpMessageConverter, which adds a method for reading an
HttpInputMessage to a specific generic type. The new interface
is implemented by the MappingJacksonHttpMessageConverter and also by a
new Jaxb2CollectionHttpMessageConverter that can read read a generic
Collection where the generic type is a JAXB type annotated with
@XmlRootElement or @XmlType.
Issue: SPR-7023
An @RequestBody or an @RequestPart argument can now be followed by an
Errors/BindingResult argument making it possible to handle validation
errors (as a result of an @Valid annotation) locally within the
@RequestMapping method.
Issue: SPR-7114
Methods returning DeferredResult can now specify a timeout value
through constructor arg while methods returning a Callable can wrap it
in an AsyncTask that also accepts a timeout and a specific task
executor.
Issue: SPR-9399
DeferredResult now has a setErrorResult method that can be set to an
Exception or an error object, error view, etc.
The new isSetOrExpired() method can be used to check pro-actively if
the DeferredResult is still usable or not.
The setDeferredResultHandler method is now public so tests may use it.
Issue: SPR-9690, SPR-9689
