F428435966 odtug web-logic for developers

WebLogic Server 11g for ADF/Forms
Developers

Mark Prichard
Java Platform Group, Oracle Fusion Middleware
mark.prichard@oracle.com

The following is intended to outline our general
product direction. It is intended for information
purposes only, and may not be incorporated into
any contract. It is not a commitment to deliver
any material, code, or functionality, and should
not be relied upon in making purchasing
decisions.
The development, release, and timing of any
features or functionality described for Oracle’s
products remains at the sole discretion of
Oracle.

Oracle WebLogic Suite
Strategic Runtime Across Oracle Product Lines

Java EE/ISV SOA WebCenter Content Identity Business
Apps Suite Suite Management Management Intelligence
Suite Suite Suite

WebLogic Suite
WebLogic Server
Enterprise Manager
Admin and Operations

Development Tools
Java EE: Reliability, Availability, Scalability & Performance

JDeveloper/Eclipse
Coherence
High Performance, Reliable, Scale Out for Java, C++ and .NET

JRockit Real Time
High Performance JVM with Extreme Low Latency

Proven to Best for
Outperform Oracle Portfolio

Lowest Cost of Operations

Integrated WebLogic Server

•  http://localhost:7101/console/
•  Log on with weblogic/weblogic1
•  C:Documents and Settings<user>Application DataJDeveloper...
DefaultDomainbin
•  (debug) -agentlib:jdwp=transport=dt_socket,server=y,address=1446

Domains and Servers
•  What is a domain?
–  a logically related group of WebLogic Server instances that you
manage from a single set of configuration artifacts.
•  What’s in a domain?
–  Servers
–  Clusters of servers
•  What is a WebLogic Server instance?
–  A configured instance to host applications and resources
•  WebApps, Enterprise Apps, Web Services, …
•  JMS, JDBC, Diagnostics, …
•  What types of servers are there?
–  Administration Server
–  Managed Server

Creating/Copying a WebLogic Domain

•  Configuration wizard: include at least Oracle JRF
•  Many ways to copy a domain: domain template
builder, pack/unpack, WebLogic Scripting Tool …

The Administration Server
•  What is it?
–  Central configuration controller for the
entire domain
•  What else does it do?
–  Hosts the Administration Console
–  Enables you to start and stop servers
from a central location
–  Enables you to migrate servers and
services within the domain
–  Enables you to deploy applications
within the domain
•  Guidelines:
–  There must be exactly one*
Administration Server in domain
–  An Administration Server controls only
one domain.
–  For production use, we recommend not
hosting application logic or resources
on the Administration Server

Managed Servers
•  What is it?
– A running instance that hosts applications and
resources needed by those applications - The real work
horses in a WebLogic domain
– Each Managed Server is independent of all other
Managed Servers in the domain (unless they are in a
cluster, defined later)
– You can have as many Managed Servers in a domain
as you need
– Individual Managed Servers are typically added for
capacity and application isolation

Managed Server Startup
•  The Administration Server stores the master copy of the
domain configuration, including the configuration for all
managed servers in the domain
•  Each Managed Server stores a local copy of its
configuration.
•  When a Managed Server starts, it connects to the
Administration Server to synchronize the configuration
•  When configuration is changed, the Administration Server
sends changed configuration to Managed Servers
•  How do I start a Managed Server?
–  With an Admin Server
–  In “Independence Mode”

Clusters and Machines
•  A cluster is a group of Managed Servers running
simultaneously and working together to provide increased
scalability and reliability
•  A cluster appears as a single instance to most clients.
•  Clusters enable some advanced features, such as Whole
Server Migration, Service Migration, and clustered JMS
destinations.
•  A machine definition is used to associate a computer with
the Managed Servers it hosts.
•  Used by Node Manager in restarting a failed Managed
Server
•  Used by a clustered Managed Server in selecting the best
location for storing replicated session data

Load Balancing in a Cluster
•  For JSPs and Servlets: load balancing is external
–  Web server proxy plug-in (round robin)
–  HTTP Proxy servlet (i.e., using WLS as a load balancer)
–  3rd party hw or sw load balancer
•  EJBs and RMI Objects: load balancing is done at
connection
–  Objects are cluster-aware
–  Load balancing algorithm is stored in the clustered object’s stub
–  Objects are available on all cluster members; remote objects
connect/use according the LB algorithm in the stub
–  Load balancing algorithms: Round robin, weighted, random, server
affinity

Failover in a Cluster

•  Servlets and JSPs:
– HTTP session state is replicated to a secondary server
in the cluster or to a database
•  EJBs and RMI Objects:
– Replicas available throughout the cluster
– Exceptions caught and retried on another instance
– For Stateful Session Beans, state is replicated on a
secondary server

WebLogic Node Manager

•  Utility/process running on a physical server that enables
you to start, stop, suspend, and restart WebLogic Server
instances remotely
•  Must run on each physical server that hosts WebLogic
Server instances that you want to control with Node
Manager
•  Not associated with a domain. Can start any server
instance that resides on the same physical server.
•  Optional, but required to start/stop servers using the
Administration Console
•  Required for Whole Server Migration and for some
configurations of Automatic Service Migration
•  Demo: How do I configure Node Manager?

WebLogic Scripting Tool (WLST)

•  Scripting tool for administering a domain (create,
configure, manage, monitor, deploy applications)
•  Based on Jython – pure Java implementation of
Python
•  Great for automating repetitive tasks
•  Heavily used by customers and within BEA

•  Example: How does JDev shut down the
Integrated WebLogic Server instance?

WLST: Connection Modes
•  Offline: analogous to the Configuration Wizard
–  Uses the Offline Configuration Framework
•  Also used by the Configuration Wizard
•  Consistent results when using either tool
–  read and write access to the configuration data that is
persisted in the domain’s config directory or in a
domain template JAR
–  Intended to create a domain or modify a non-running
domain
–  Used during WLS install to create samples domains

•  Online: analogous to the Administration Console
–  JMX client
–  Interacts with a server’s MBeans
–  Intended as a runtime management tool:

WLST – with SSL + Custom Trust
java -Dweblogic.security.TrustKeyStore=CustomTrust -
Dweblogic.security.CustomTrustKeyStoreFileName=/home/
oracle/security/labTrustKeystore.jks -
Dweblogic.security.CustomTrustKeystoreType=JKS -
Dweblogic.security.CustomTrustKeyStorePassPhrase=labpassw
ord weblogic.WLST
wls:/offline> nmConnect
('oracle','oracle1','node1.localdomain',
5556,'labDomain','/home/oracle/wls1032/user_projects/
domains/labDomain','ssl')
wls:/nm/labDomain> storeUserConfig
('nm_user.config','nm_user.key',nm='true')

wls:/offline> nmConnect(userConfigFile=‘<path>/
nm_user.config',userKeyFile=‘<path>/
nm_user.key',host='node1.localdomain',port=5556,domainNam
e='labDomain',domainDir=‘<path>/labDomain',mType='ssl')

Java Keystores for Dev/Test
[oracle@node1 security]$ java utils.CertGen -certfile labcert1 -keyfile
labkey1 -keyfilepass labkeypass -cn "node1.localdomain" -o
"MyOrganization" -ou "FOR TESTING ONLY" -keyusage
digitalSignature,nonRepudiation,keyEncipherment,dataEncipherment,keyAgre
ement
[oracle@node1 security]$ cp /home/oracle/wls1032/wlserver_10.3/server/lib/
CertGenCA.der .
[oracle@node1 security]$ java utils.der2pem CertGenCA.der
[oracle@node1 security]$ cat labcert1.pem CertGenCA.pem > cert1.pem
[oracle@node1 security]$ mv cert1.pem labcert1.pem
[oracle@node1 security]$ keytool -printcert -file labcert1.pem
[oracle@node1 security]$ java utils.ImportPrivateKey -keystore
labIdentityKeystore.jks -storepass labpassword -alias labalias1 -keypass
labaliaspass -certfile labcert1.pem -keyfile labkey1.pem -keyfilepass
labkeypass
[oracle@node1 security]$ java utils.ImportPrivateKey -keystore
labIdentityKeystore.jks -storepass labpassword -alias labalias1 -keypass
labaliaspass -certfile labcert1.pem -keyfile labkey1.pem -keyfilepass
labkeypass
Trust this certificate? [no]: yes

Shared Libraries and Class Loaders

•  Shared Libraries used extensively by Oracle Applications
–  JRF, ADF, APPLCORE, etc
–  Applications explicitly declare a dependency on shared libraries
•  Understanding Shared Libraries is critical to avoiding Class
Loader related issues

Application shared libraries
App-1.ear App-lib.ear App-2.ear

my-web-1.war my-web-3.war my-web-2.war

my-ejb-1.jar my-ejb-2.jar

Deployment view
Runtime view
App-1.ear App-2.ear

my-web-1.war my-web-2.war

my-ejb-1.jar my-ejb-2.jar

my-web-3.war my-web-3.war

Webapp shared libraries
webapp-1.war

WEB-INF/web.xml webapp-1.war
WEB-INF/lib/x.jar
foo.jsp
bar.jsp WEB-INF/web.xml*
WEB-INF/lib/x.jar
WEB-INF/lib/y.jar
foo.jsp
bar.jsp
a.jsp
WEB-INF/web.xml b.html
Deployment view

WEB-INF/lib/y.jar
Runtime view

a.jsp
b.html

webapp-lib.war

Jar libraries

App-1.ear

my-web-1.war
library.jar my-web-2.war
my-ejb-1.jar

•  Jar files and Jar libraries can be referenced from
applications (EAR, WAR, JAR) via MANIFEST classpath or
descriptors.

Preview – Classloader Analysis Tool

•  Used internally for several releases
•  Will be shipped and supported with PS3
•  Provided as web-app (wls-cat.war)
•  On-demand deployment (dev mode only)
•  URLs allow customization
•  Functionality:
–  View classloader hierarchies and entire classpath
for each classloader
–  Analyze classpath conflicts (filtering classloader
hints)
–  Search for a class/resource on a classloader
–  View class definitions, interfaces

Preview – Classloader Analysis Tool

WebLogic Diagnostic Framework

Pull
Log File Event • WLST API
Collector Accessor • JMX API
• WLDF Dashboard
Archiver

MBean Property
Harvester
Push • SNMP Trap
Watcher • JMS Message
Notifier
Code • JMX Notification
Instrumentor • SMTP Email
• Diagnostic Image

JRockit Flight
Recorder JRockit
Buffer Mission
Control

Capture Process Expose Retrieve

WLDF/JFR Integration Architecture

WLST, Console, EJB WebApp JDBC JTA WS Etc…
WLDF Watch/Notification WLDF Instrumentation Configuration (Instrumented at Build Time)

WLDF Instrumentation Engine
WLST Image Manager
WLDF Monitors and Action Groups

WLDF Flight Recorder Instrumentation Extension
Image Source WLDF Flight Recorder Actions
Extension Actions
JRFR Consumer API JRFR Producer API

JRockit Flight Recorder

Diagnostic Image File Extension Data
With Flight Recorder Data

Diagnostic Image File
Without Flight Recorder Data

Extension supplied JRockit Supplied WLDF File/Artifact Available if JRockit is Used

WLDF User-defined Pointcuts
<wldf-instrumentation-monitor>
<name>Trace_Servlet_Around_Service</name>
<action>TraceElapsedTimeAction</action>
<location-type>around</location-type>
<pointcut>
execution(* +javax.servlet.Servlet
service(+javax.servlet.ServletRequest,
+javax.servlet.ServletResponse))‫‏‬
OR execution(* +javax.servlet.http.HttpServlet
doPost(+javax.servlet.ServletRequest,
+javax.servlet.ServletResponse))‫‏‬
OR execution(* +javax.servlet.http.HttpServlet
doGet(+javax.servlet.ServletRequest,
+javax.servlet.ServletResponse))
</pointcut>
</wldf-instrumentation-monitor>

WLS 10.3.3, JFR R28 and JRMC 4.0.1
“Quick Start Guide”

•  Turn on JFR default recording
–  -XX:FlightRecorderOptions=defaultrecording=true
–  Flight recorder command line documentation
•  Configure WLS to use Platform MBean
Server
–  Admin console: domain->configuration->general
tab (Advanced)
–  Check Platform MBean Server Enabled (default in
10.3.3)
–  Check Platform MBean Server Used (off by
default)
–  NB: Platform MBean Server security
–  -

Working with JRockit Flight Recorder

•  Start JRMC, connect to WLS
•  Configure WLS Diagnostic Volume (admin
console: server->configuration->general, “High”)
•  Right mouse, select “Dump Default Recording”

WebLogic Server MBeans
via Platform MBean Server + JRMC

Preview – WebLogic Maven Plugin

•  WebLogic Maven Plugin
–  PS3: supports weblogic.Deployer functionality
•  weblogic:deploy
•  weblogic:undeploy
•  weblogic:redeploy
•  weblogic:update-app
•  weblogic:start-app
•  weblogic:stop-app
•  weblogic:list-apps
–  Same parameters as weblogic.Deployer
–  Other WLS Maven functionality planned for post-PS3

Preview – WebLogic Maven Plugin
•  Build plugin jar file with wljarbuilder.jar
java -jar wljarbuilder.jar -profile weblogic-maven-plugin
•  Install to local Maven repository
mvn install:install-file -Dfile=<path>/weblogic-maven-plugin.jar -
DgroupId=com.oracle.weblogic -DartifactId=weblogic-maven-plugin -
Dpackaging=maven-plugin -Dversion=10.3.4 -DgeneratePom=true
•  Add to Maven settings.xml
<pluginGroups>
<pluginGroup>com.oracle.weblogic</pluginGroup>
</pluginGroups>
•  Maven co-ordinates
<groupid>com.oracle.weblogic</groupid>
<artifactid>weblogic-maven-plugin</artifactid>
<version>10.3.4</version>

Maven example pom.xml (excerpt)
<plugin>
<groupId>com.oracle.weblogic</groupId>
<artifactId>weblogic-maven-plugin</artifactId>
<version>10.3.4</version>
<configuration>
<adminurl>${wls.adminurl}</adminurl>
<user>${wls.user}</user>
<password>${wls.password}</password>
<upload>false</upload>
<action>deploy</action>
<remote>false</remote>
<verbose>true</verbose>
<source>${project.build.directory}/${project.build.finalName}.
${project.packaging}</source>
<name>${project.build.finalName}</name>
</configuration>
</plugin>

Using Eclipse/OEPE with m2eclipse
•  Third-party m2eclipse plugin provides Maven support for
OEPE/Eclipse
•  POM editor, dependency graphs, repo browser, mvn tasks

Example: Eclipse/OEPE with the
m2eclipse plugin

F428435966 odtug web-logic for developers

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