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Improve your Developer Experiece using the WAS Liberty Profile with JRebel
- 1. D-05 Improve your Developer Experiece
using the WAS Liberty Profile with JRebel
Anton Arhipov | JRebel Product Lead | ZeroTurnaround
Tim deBoer | RAD & WDT Chief Architect | IBM
© IBM Corporation 2012
© IBM Corporation 2011
- 2. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Agenda
• WAS, RAD and WDT
• The WAS Liberty Profile
• JRebel
© IBM Corporation 2012
- 3. 3
IBM WebSphere Technical Convention 2012 – Berlin, Germany
WebSphere Application Server Family (V8.5)
WAS for WAS Hypervisor Edition WAS ND WAS for z/OS
Developers
Tools +Liberty +Liberty +Intelligent Tools +Liberty +Intelligent +Liberty +Intelligent
Edition Profile Profile Mgmt Edition Profile Mgmt Profile Mgmt
Enables efficient Optimized to instantly run Delivers near-continuous Takes full advantage of
development of in VMware and other availability, with advanced the z/OS Sysplex to deliver a
innovative apps server virtualization performance and mgmt highly secure, reliable, and
that will run on environments capabilities, for mission- resource efficient
WAS in production critical apps server experience
Available as a
no-charge edition
for the developer WAS
desktop and
Provides secure, high performance transaction engine for
includes Eclipse Tools +Liberty
moderately sized configurations with web tier clustering and
adapters Edition Profile
failover across up to five application server profiles
WAS Express WAS CE
An open source-based, small
A lower-cost, ready-to-go footprint foundation with no up-
+Liberty solution to build dynamic front acquisition costs
Profile
Web sites & apps
© IBM Corporation 2012
Built on a common code base
- 4. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Rational Application Developer and
the new WAS Developer Tools
Portal &
Comprehensive
Portlet JCA
SIP
iWidgets SCA Analysis
CEA
JSF Profiling
Batch
Web 2.0 Visualization
Cloud
Focused
& mobile OSGi
Java EE Team
WAS & Liberty debug Team code
Profile coverage
Basic Eclipse WAS Developer Tools Rational Application Developer
Freely available
Free Premium Offering
Supported for a fee
© IBM Corporation 2012
4
- 5. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Agenda
• WAS, RAD and WDT
• The WAS Liberty Profile
• JRebel
© IBM Corporation 2012
- 6. IBM WebSphere Technical Convention 2012 – Berlin, Germany
What Do Developers Care About?
• Common development tasks include:
fastest
• Modify file within an application
• Debug a problem in an application
Hourly • Restart/redeploy application
• Restart server
Daily • Share code with team
• Change app structure (add/remove a module/bundle) faster
• Make config change
Weekly
• Share config change with team
• Reproduce problem from another environment
Monthly • Upgrade to new service release
• Create application
• Install server fast
Time to complete
Frequency
• All tasks should be as painless as possible, with special emphasis on the more
frequent ones. If the time taken to accomplish these tasks is an impediment to
the development, the cost of the fidelity of the test server runtime is challenged
• These kind of capabilities reflect on the Application Server runtime as well as
6
the tools © IBM Corporation 2012
- 7. 7
IBM WebSphere Technical Convention 2012 – Berlin, Germany
WAS v8.5: Introduces the Lightweight “Liberty”
Profile – For Web, OSGi and Mobile Apps
A highly composable, dynamic Server profile
Dynamic Server Profile Developer First Focus
Not static like Web Profile – Simplified, shareable server config (like a
determines by app at a fine- dev. artifact). One XML file or several to
grained level simplify sharing & reuse of config
Incredibly fast: Small Download:
start times: < 5 secs < 50MB
Lightweight runtime Dynamic Runtime
Small memory footprint: Adding features & updating
WAS v8.5 configs does not require
(46MB for TradeLite)
Liberty Profile server restart
Integrated Tooling Integration with ND Job Mgr
Powerful tools. Simple Optionally manage server
Eclipse feature lifecycle through ND Job Mgr
Unzip Install & Deploy Popular Platforms Fidelity to full profile WAS
IM or unzip to install. Unzip Adds MAC OS for Same reliable containers & QOS
deploy of server + app + config development (easy migration from dev to ops)
© IBM Corporation 2012
- 8. IBM WebSphere Technical Convention 2012 – Berlin, Germany
No Hurdles to Install
• Tools and runtime are free for development. No time limit
• Eclipse feature install for tools; 40MB zip download for server profile.
– Installation Manager also supported à same installed result.
• 2 minutes from “Nothing” to “Done”:
• Install WAS Developer Tools for Eclipse Feature
•
• Use the Tools to download the WAS Liberty Profile
or download 40MB zip from WASdev.net
www.wasdev.net
© IBM Corporation 2012
8
- 9. 9
IBM WebSphere Technical Convention 2012 – Berlin, Germany
Simplified Server Configuration
• Simplest case: One
XML file for all
server config
• Editable within the
workspace
• Exportable,
shareable,
versionable
No need for Admin Console, wsadmin,
or extended EARs
server.xml
X
resources.xml
etc.
ws-security.xml
© IBM Corporation 2012
- 10. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Highly Composable Runtime Based on ‘Features’
WAS Extensions
Java EE Support
jpa-2.0
jsp-2.2 restconnector-1.0
Runtime Services
& servlet-3.0 appsecurity-1.0
Config Model
Feature Manager HTTP Transport Application Manager
Full WAS Profile WAS v8.5 Liberty Profile
© IBM Corporation 2012
- 11. IBM WebSphere Technical Convention 2012 – Berlin, Germany
WAS V8.5 Feature Set
Programming Model Runtime
zosTransaction-1.0
zWlm-1.0 zosSecurity-1.0
beanvalidation-1.0
appSecurity-1.0
jaxrs-1.1 osgi-jpa-1.0
localConnector-1.0 restConnector-1.0
blueprint-1.0
ssl-1.0
jsf-2.0 jpa-2.0
json-1.0 monitor-1.0
jsp-2.2
sessionDatabase-1.0
servlet-3.0 wab-1.0
jndi-1.0 jdbc-4.0
jaxws-2.2
cdi-1.0 ejblite-3.1
Alpha © IBM Corporation 2012
- 12. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Liberty Profile – Startup & Footprint
• The problem of a lightweight
development environment in S tartu p
&
F o o tp rin t
C o mp aris o n
o f
v ario u s
lig h tweig h t
s erv ers
WebSphere has been
solved! 9.0 120
S ta rtu p
time
in
sec onds
(L ower
is
B etter)
8.0 7.8 104
– Liberty Profile startup & 93 100
7.0
footprint are on par with
Footprint
in
MB
(L ower
is
B etter)
6.0 80
5.3
Tomcat. 5.0
60
– Liberty Profile starts up in less 4.0 46
than half the time of JBoss 3.0 34
2.3
40
2.0 1.7
Web profile. 20
1.0
0.0 0
T omc a t
7.0.12 J B oss
7.0
Web
G la ssF ish
3.1
L iberty
P rofile
P rofile Web
P rofile
System Info:
Lenovo T60p - 2 x 2.16 GHz Intel Core Duo T2600 S tartup
time
2GB RAM, Windows XP 32-bit F ootprint
Apache Tomcat 7.0.12
JBoss Community Edition 7.0 Web Profile server Note: Tomcat , JBoss, and GlassFish were
GlassFish Server 3.1 Open Source Edition Web Profile
measured with the HotSpot JDK, while Liberty was
WAS V8.5 Liberty Profile
(All servers had the TradeLite benchmark application installed) measured with the IBM JDK.
© IBM Corporation 2012
12
- 13. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Agenda
• WAS, RAD and WDT
• The WAS Liberty Profile
• JRebel
© IBM Corporation 2012
- 15. IBM WebSphere Technical Convention 2012 – Berlin, Germany
The Typical Turnaround In Java EE Environment
Observe Make a
results change
Build,
deploy,
wait
© IBM Corporation 2012
- 16. IBM WebSphere Technical Convention 2012 – Berlin, Germany
AVG ~2.5 min
http://zeroturnaround.com/java-ee-productivity-report-2011/ © IBM Corporation 2012
- 17. IBM WebSphere Technical Convention 2012 – Berlin, Germany
The Typical Turnaround In Java EE Environment
Observe Make a
results change
Build,
deploy,
wait
© IBM Corporation 2012
- 18. IBM WebSphere Technical Convention 2012 – Berlin, Germany
The Turnaround Time Sink
1s – 5m 1s – 1m 0,5 – 10m ~1m
build
server startup
application initialization
in-app
navigation
© IBM Corporation 2012
- 19. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Build
Resolve dependencies
Copy static resources
Compile classes
Package modules into JARs
Package everything into WAR/EAR
© IBM Corporation 2012
- 21. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Resource Mapping
getResource(“hello.html”) read(“src/main/.../hello.html”)
© IBM Corporation 2012
- 22. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Build
Resolve dependencies
Copy static resources
Compile classes
Package modules into JARs
Package everything into WAR/EAR
© IBM Corporation 2012
- 23. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Build
Resolve dependencies
Copy static resources
Compile classes
Package modules into JARs
Package everything into WAR/EAR
© IBM Corporation 2012
- 24. IBM WebSphere Technical Convention 2012 – Berlin, Germany
HotSwap
Make changes in IDE
OldClassLoader
MyObject.class
HotSwap
New code
111000100 Debugger
101010010 New code
111000100
101010010
MyObject
© IBM Corporation 2012
- 25. IBM WebSphere Technical Convention 2012 – Berlin, Germany
JRebel vs HotSwap
HotSwap JRebel
Changing method bodies + +
Adding/removing methods IBM J9 +
Adding/removing constructors - +
Adding/removing fields - +
Adding/removing classes - +
Adding/removing annotations - +
Replacing super class - -
Adding/removing implemented - -
interfaces © IBM Corporation 2012
- 26. IBM WebSphere Technical Convention 2012 – Berlin, Germany
JRebel
Make changes in IDE
OldClassLoader
Framework
MyObject.clas
Code s
101000101
New code
JRebel
100010010
111000100
101010010
MyObject
Configuration
(XML, annotations,..)
© IBM Corporation 2012
- 28. IBM WebSphere Technical Convention 2012 – Berlin, Germany
The Turnaround Time Sink
1s – 5m 1s – 5m 0,5 – 10m ~1m
build
server startup
application initialization
in-app
navigation
© IBM Corporation 2012
- 29. IBM WebSphere Technical Convention 2012 – Berlin, Germany
JRebel for WebSphere
• WebSphere 6.1
• WebSphere 7.x
• WebSphere 8.x-8.5
• WebSphere 8.5 Liberty
• Including EJB support
© IBM Corporation 2012
- 30. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Available via Eclipse Marketplace
• Or the update site:
http://zeroturnaround.com/update-site/ © IBM Corporation 2012
- 34. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Questions?
As a reminder, please fill out a session evaluation
© IBM Corporation 2012
- 35. IBM WebSphere Technical Convention 2012 – Berlin, Germany
Copyright Information
• © Copyright IBM Corporation 2012. All Rights Reserved. IBM, the IBM logo, ibm.com, AppScan,
CICS, Cloudburst, Cognos, CPLEX, DataPower, DB2, FileNet, ILOG, IMS, InfoSphere, Lotus, Lotus
Notes, Maximo, Quickr, Rational, Rational Team Concert, Sametime, Tivoli, WebSphere, and z/OS
are trademarks or registered trademarks of International Business Machines Corporation in the
United States, other countries, or both. If these and other IBM trademarked terms are marked on
their first occurrence in this information with a trademark symbol (® or ™), these symbols indicate
U.S. registered or common law trademarks owned by IBM at the time this information was
published. Such trademarks may also be registered or common law trademarks in other countries.
A current list of IBM trademarks is available on the Web at “Copyright and trademark information” at
ibm.com/legal/copytrade.shtml.
• Coremetrics is a trademark or registered trademark of Coremetrics, Inc., an IBM Company.
• SPSS is a trademark or registered trademark of SPSS, Inc. (or its affiliates), an IBM Company.
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• Java and all Java-based trademarks and logos are trademarks of Oracle and/or its affiliates. Other
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© IBM Corporation 2012