The Reactor Environment (that's used by the TcpClient) manages a
number of threads. To ensure that these threads are cleaned up
Environment.shutdown() must be called when the Environment is no
longer needed.
Ensure any exception from calls to batchUpdate, on databases that
support batch operations, contains all the SQL statements. Prior to this
commit only the last SQL statement would be returned with the exception.
Issue: SPR-10677
A new type MessageHeaderAccesssor provides read/write access to
MessageHeaders along with typed getter/setter methods along the lines
of the existing MessageBuilder methods (internally MessageBuilder
merely delegates to MessageHeaderAccessor). This class is extensible
with sub-classes expected to provide typed getter/setter methods for
specific categories of message headers.
NativeMessageHeaderAccessor is one specific sub-class that further
provides read/write access to headers from some external message
source (e.g. STOMP headers). Native headers are stored in a separate
MultiValueMap and kept under a specific key.
Update MethodValidationPostProcessor.setValidator(...) to use
LocalValidatorFactoryBean.getValidator() when possible.
This is required because LocalValidatorFactoryBean does not directly
implement the forExecutables() method introduced in bean validation v1.1.
Issue: SPR-10644
Update the cached MethodExecutor in MethodReference to include the
method argument types. Prevents the incorrect use of the cache when the
SpEL expression refers to a class that has overloaded methods.
Issue: SPR-10657
Allow the @CachePut 'key' SpEL to refer to the result of the method call
via a '#result' variable.
This change is particularly useful when working with JPA entities that
have generated @Id values since the ID will often not be available
until the entity has been saved.
Issue: SPR-10664
Introduce new SimpleKeyGenerator class to supersede DefaultKeyGenerator.
Unlike DefaultKeyGenerator, no collisions will occur with the keys
generated by SimpleKeyGenerator as the full parameter values are
considered within the SimpleKey.equals(...) method.
The SimpleKeyGenerator is now the default class used when no explicit
generator is configured.
Issue: SPR-10237
Add EnhancedConfigurationBeanPostProcessor to inject the BeanFactory
into EnhancedConfiguration classes before the
AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues method
is called.
Prior to this commit it was possible for @Autowire in a @Configuration
class to invoke an enhanced configuration class method before the
BeanFactory was injected. This is due to the fact that the
AutowiredAnnotationBeanPostProcessor was called before
AbstractAutowireCapableBeanFactory.invokeAwareMethods().
Issue: SPR-10668
SPR-10402 in Spring Framework 3.2.3 treated empty request parameter
values as missing values, if the empty value was turned into a null
by a PropertyEditor or Converter. This caused the regression.
Issue: SPR-10578, SPR-10402, SPR-10584
Similar to @ExceptionHandler but for message processing. Such a method
can send messages to both the message broker channel and the client
channel provided the client is subscribed to the target destination.
The "system" STOMP session is established at startup and can be used
to send messages without a client session, e.g. to support broadcasting
from a REST/HTTP handler method.
MessageHolder holds the currently processed message in a ThreadLocal,
which allows PubSubMessageBuilder to automatically add a session id
to messages to be sent.
Rename to PubSubHeaderAccessor and StompHeaderAccessor
Move the renamed classes to support packages
Remove fromPayloadAndHeaders from MessageBuilder, just use
withPayload(..).copyHeaders(..) instead.
The use of an AtomicBoolean and no lock meant that it was possible
for a message to be queued and then never be flushed and sent to the
broker:
1. On t1, a message is received and isConnected is false. The message
will be queued.
2. On t2, CONNECTED is received from the broker. isConnected is set
to true, the queue is drained and the queued messages are forwarded
3. On t1, the message is added to the queue
To fix this, checking that isConnected is false (step 1 above) and the
queueing of a message (step 3 above) need to be performed as a unit
so that the flushing of the queued messages can't be interleaved. This
is achieved by synchronizing on a monitor and performing steps 1
and 3 and synchronizing on the same monitor while performing step 2.
The monitor is held while the messages are actually being forwarded
to the broker. An alternative would be to drain the queue into
a local variable, release the monitor, and then forward the messages.
The main advantage of this alternative is that the monitor is held for
less time. It also reduces the theoretical risk of deadlock by not
holding the monitor while making an alien call. The downside of the
alternative is that it may lead to messages being forwarded out of
order. For this reason the alternative approach was rejected.
When an annotated handler returns a Message from a @SubscribeEvent
or @MessageMapping method and it contains no destination in its
headers, use the received message's destination as the response
message's destination.
Without generics, extending AbstractPubSubChannelRegistry and using
a custom Message type requires some unpleasant casting and suppression
of warnings. By genericizing PubSubChannelRegistry and
AbstractPubSubChannelRegistry these problems can be avoided.
Prior to this commit, the longValue() in HeaderResultMatchers added the
expected response header name to generated assertion failure messages;
however, both string() methods did not. This made it more difficult to
analyze the cause of failed tests.
Furthermore, while investigating a solution for this issue it became
apparent that longValue() throws a NullPointerException if the response
does not contain the specified header.
This commit addresses these issues as follows:
- All methods in HeaderResultMatchers now include the response header
name in generated assertion failure messages.
- HeaderResultMatchers.longValue() now avoids NullPointerExceptions by
explicitly asserting that the response contains the specified header.
- The unit tests in HeaderAssertionTests have been expanded to test
most foreseeable use cases.
Issue: SPR-10659
Rossen Stoyanchev
Andy Wilkinson
Phillip Webb
Nick Williams
Sam Brannen