Camel 2.10.0 release (currently in progress)
New and Noteworthy
Welcome to the 2.10.0 release which approx XXX issues resolved (new features, improvements and bug fixes such as...)
- Internal code cleanup to reduce warnings reported by Eclipse
- Moved Spring Testing from
camel-test
tocamel-test-spring
component. - Camel Property Placeholders is now supported in embedded Expressions in the Camel routes.
- Added missing options in the XML DSL for the XPath language to control and set XPath Engine to use, etc.
- Added option
logNamespaces
to XPath language to haveINFO
logging of detected namespaces from message. Can be used to aid during issues with having XPath expression works as expected (as often its a namespace conflict). - Added
replyToCacheLevelName
option to JMS component, to allow to configure cache levels for persistent reply consumer, when doing request/reply over JMS. Some message brokers do not work well with caching, so users may need to configure this option toCACHE_NONE
. - Added
antInclude
andantExclude
options to File and FTP components, to make it easier to specify include/exclude using ANT style. - The Camel archetypes for java and scala, no longer generates project with Spring dependency.
- Improved
JdbcMessageIdRepository
in SQL to use custom sql statements/queries. - Added option to Properties to allow silently ignoring property locations not found, such as a .properties file.
- Added
managementNamePattern
attribute to<camelContext>
to make it very easy to customize and control the JMX naming of the Camel application. See details at Camel JMX. For example in OSGi environments you can explicit configure amanagementNamePattern
in case you do not want the bundleId as part of the MBean names. - Added streaming update support to Solr as well as support for SolrInputDocuments
- Improved Camel Mail to support the
replyTo
option - Added
traceEnabled
option to Jetty component so you have control over whether to allow HTTP TRACE calls against your Jetty endpoints. - Polished the Camel Maven Archetypes to let the projects be prepared for Testing and fixed any WARNs from Maven.
- Added
dumpRouteStatsAsXml
methods to JMX to make it easier to get the total performance stats as XML, and in one JMX call. - Graceful Shutdown is now more aggressive if timeout occurred during shutdown, now rejecting continue processing messages or redeliveries.
- Add
ShutdownPrepared
SPI to allow custom Services (also EIPs) in routes to do custom code preparing for shutdown. - The
camel-archetype-java
Camel Maven Archetypes is now a pure Java DSL based project (no longer Spring) - JMS consumer is less verbose when logging uncaught exceptions occurred during process a message. Added
errorHandlerLoggingLevel
, anderrorHandlerLogStackTrace
options to tweak the logging verbosity. - Added
messageId
as MDC logging key. - Improved Camel's Transaction Error Handler logging to better pinpoint and correlate redelivered messages (from eg a JMS broker), making reading the logs much easier.
- Added the timeout option to Spring Web Services for specifying the read timeout while invoking a webservice.
- Optimized Type Converter registry for possible concurrency contention when looking up a type converter.
- Improved Simple language to work better with floating point numbers in Predicates
- Camel is now less verbose when starting and stopping, whats being logged at
INFO
level.
Fixed issues
- Fixed memory leak issue when dynamic adding and removing a lot of routes at runtime.
- Fixed potential NPE in FTP consumer when using double slashes as starting directory.
- Fixed InterceptSendToEndpoint with a when and
skipSendToEndpoint=true
should only skip sending if the predicate was true. - Fixed issue with Bean Binding directly in method name not working properly with method call expressions.
- Fixed issue with using custom namespaces in XPath expressions when using OSGi Blueprint
- Fixed Validation to support
xs:import
in the schema files. - Fixed Poll Enrich where timeout was not explicit configured to use the blocking mode. Was wrongly using the non blocking mode.
- Fixed Threads EIP to handle rejected policies to ensure the Exchange will done the
UnitOfWork
, to ensure the Exchange will get de-registered from the inflight registry. - Fixed Delayer not working with a Bean expression to define the delay when using XML DSL
- Fixed JMS consumer will no longer complain by default about no errorHandler configured, if uncaught exception was thrown during processing a message.
- Fixed the String trim issue of the Simple expression.
- Fixed issue with Recipient List not triggering Error Handler for endpoints with non existing Components.
- Fixed issue with WARN logging running Camel as a WAR file in JBoss 7.
New Enterprise Integration Patterns
New Components
camel-avro
camel-aws
- AWS-DDB - Amazon DynamicDBcamel-beanio
camel-cdi
camel-gson
- For JSON data format using Google GSon projectcamel-mina2
camel-mongodb
- for MongoDB integrationcamel-ssh
- For executing commands on a SSH Servercamel-test-blueprint
- For Blueprint Testingcamel-test-spring
- For Spring Testingcamel-twitter
- For integrating with Twittercamel-websocket
- For using web socket
DSL Changes
New Annotations
New Data Formats
camel-avro
camel-beanio
camel-gson
- For JSON data format using Google GSon project
New Languages
New Examples
- There is a
camel-example-ssh
New Tutorials
API changes/breaking
- Added
shutdownForced
, andforceShutdown
methods toorg.apache.camel.spi.ShutdownStrategy
- Add boolean parameter to
prepareShutdown
onShutdownAware
Internal/Non API refactorings that may affect users
- Removed method
setManagementName
fromCamelContext
as it should not be used by Camel end users - Added
isTransactedRedelivered
method to Exchange
Known Issues
- The Tracer may not output all details for some situations such as when using
onCompletion
orintercept
etc. - The project cannot fully build the site using Maven (eg running
"mvn site"
. There is no plan to make this work as the project do not use the maven site. - The source code cannot fully build with JDK 7
Dependency Upgrades
- AHC 1.6.5 to 1.7.0
- AWS 1.2.2 to 1.3.0
- Commons-codec 1.4 to 1.6
- CXF 2.5.1 to 2.5.2
- Groovy 1.8.5 to 1.8.6
- Hadoop 0.20.203.0 to 1.0.0
- Hazelcast 1.9.4.4 to 1.9.4.6
- Jasypt 1.7 to 1.8
- Jetty 7.5.3 to 7.5.4
- Kratti 0.4.1 to 0.4.3
- Netty 3.2.6 to 3.3.1
- Shiro 1.1.0 to 1.2.0
- Spring 3.0.6 to 3.0.7
- Spring Integration 2.0.5 to 2.1.0
- Spring Security 3.0.7 to 3.1.0
- Tagsoup 1.2 to 1.2.1
Important changes to consider when upgrading
- Moved Spring Testing from
camel-test
tocamel-test-spring
component. - Combination of
skipSendToEndpoint=true
andwhen
predicate now triggers conditional skipping (you may be relying on unconditional skipping up until now) - The thread name pattern has changed tokens to avoid clashing with Using PropertyPlaceholder, see Threading Model for more details.
- The Poll Enrich will now block if no messages is available, if no explicit timeout value has been configured.
- Setting the option
lazyLoadTypeConverter=true
has been deprecated, and will be removed in a future release. Best practice is type converters is loaded as part of bootstrapping Camel. - The Camel Test kit do no longer load type converters lazy.
Notice
- If you want to deploy Apache Camel 2.9.0 into Apache Karaf, we highly recommend to use the 'jre.properties.cxf' configuration, which is part of Apache Karaf 2.2.5.
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