Weblogic Portal Tech Cafe

Sample on Accessing the Web Service Context

2014-01-09T11:58:00.003-08:00

JAX-WS Sample
==============
package temp;

import javax.jws.*;
import javax.xml.ws.WebServiceContext;
import javax.xml.ws.handler.MessageContext;
import javax.servlet.http.HttpServletRequest;
import javax.annotation.Resource;
import javax.xml.ws.BindingType;
import javax.xml.ws.soap.SOAPBinding;

public class MyWS {

@Resource(name="wsContext")
private WebServiceContext wsContext;

public String hello() {
String reqInfo = getRequestInfo();
return reqInfo;
}

private String getRequestInfo() {
return ((HttpServletRequest)(wsContext.getMessageContext().get(MessageContext.SERVLET_REQUEST))).getRemoteAddr();
}

}

JAX-RPC Sample
=================
package test;

import javax.jws.*;
import javax.xml.rpc.handler.MessageContext;
import javax.xml.rpc.server.ServletEndpointContext;
import javax.xml.rpc.ServiceException;
import weblogic.wsee.message.WlMessageContext;
import weblogic.wsee.connection.Connection;
import weblogic.wsee.connection.transport.Transport;
import weblogic.wsee.connection.transport.servlet.HttpServerTransport;
import javax.xml.rpc.server.ServiceLifecycle;

import weblogic.webservice.context.*;

public class ServiceImpl implements ServiceLifecycle{

private WebServiceContext wsContext;
private ServletEndpointContext wsctx = null;

public void init(Object context) throws ServiceException {

System.out.println("ServletEndpointContext inited...");
wsctx = (ServletEndpointContext)context;

}

public String getRemoteAddress() {

WlMessageContext msgCtx = (WlMessageContext)wsctx.getMessageContext();
Connection conn = msgCtx.getDispatcher().getConnection();
Transport transport = conn.getTransport();

if (transport instanceof HttpServerTransport) {

return ((HttpServerTransport)transport).getRequest().getRemoteAddr();

}
else {

return null;

}

}

public void destroy() {}

public String helloWorld(){

String reqInfo = getRemoteAddress();
return "Hi";

}
}

Sample on Accessing the Web Service Context

2014-01-09T11:58:00.001-08:00

public class MyWS {

@Resource(name="wsContext")
private WebServiceContext wsContext;

public String hello() {
String reqInfo = getRequestInfo();
return reqInfo;
}

private String getRequestInfo() {
return ((HttpServletRequest)(wsContext.getMessageContext().get(MessageContext.SERVLET_REQUEST))).getRemoteAddr();
}

}

public class ServiceImpl implements ServiceLifecycle{

private WebServiceContext wsContext;
private ServletEndpointContext wsctx = null;

public void init(Object context) throws ServiceException {

System.out.println("ServletEndpointContext inited...");
wsctx = (ServletEndpointContext)context;

}

public String getRemoteAddress() {

return ((HttpServerTransport)transport).getRequest().getRemoteAddr();

}
else {

return null;

}

}

public void destroy() {}

public String helloWorld(){

String reqInfo = getRemoteAddress();
return "Hi";

}
}

Weblogic Web service Debug flags

2014-01-09T11:57:00.001-08:00

For advance debug logging in webservice, you can enable debugs on Weblgic webservice by adding the following -D flags to your server startup script, then restart Weblogic server:

Security related:

-Dweblogic.wsee.security.verbose=true
-Dweblogic.wsee.security.debug=true
-Dweblogic.debug.DebugSecurityCredMap=true
Crypto related:

-Dweblogic.xml.crypto.encrypt.verbose=true
-Dweblogic.xml.crypto.dsig.debug=true
-Dweblogic.xml.crypto.dsig.verbose=true
-Dweblogic.xml.crypto.wss.debug=true
-Dweblogic.xml.crypto.wss.verbose=true
-Dweblogic.xml.crypto.keyinfo.debug=true
-Dweblogic.xml.crypto.keyinfo.verbose=true
-Dweblogic.xml.crypto.dsig.debug=true
-Dweblogic.xml.crypto.dsig.verbose=true
-Dweblogic.xml.crypto.encrypt.debug=true
-Dweblogic.xml.crypto.encrypt.verbose=true
SAML related:

-Dweblogic.debug.DebugSecuritySAMLService=true
-Dweblogic.debug.DebugSecuritySAMLCredMap=true
-Dweblogic.debug.DebugSecuritySAMLAtn=true
-Dweblogic.debug.DebugSecuritySAMLLib=true
-Dweblogic.debug.DebugSecuritySAML2Service=true
-Dweblogic.debug.DebugSecuritySAML2CredMap=true
-Dweblogic.debug.DebugSecuritySAML2Atn=true
-Dweblogic.debug.DebugSecuritySAML2Lib=true
General:

-Dweblogic.log.StdoutSeverity=Debug
-Dweblogic.wsee.verbose=weblogic.wsee.conversation.*, weblogic.wsee.callback.*
-Dweblogic.webservice.verbose=true
-Dweblogic.wsee.debug=*
-Dweblogic.wsee.verbose.timestamp=true

For logging of http request and response with Metro webservice, add the following to your server startup script, and restart Weblogic Server:

General:
com.sun.xml.ws.transport.http.client.HttpTransportPipe.dump=true

You can selectively enable the relevant debug flags, as needed. By default, all logging goes to the WLS server log.

Note: You can add more verbose debugging from individual subsystem in webservice using -Dweblogic.wsee.verbose by listing the subsystems in comma-separated list, as shown above. Alternatively, you can use use -Dweblogic.wsee.verbose=* to output all the debug logging.

Weblogic Classloader Debug Flags

2014-01-09T11:56:00.002-08:00

Here's the list of Weblogic Server Classloader Debug flags that can be set in the start up scripts of weblogic server.

-Dweblogic.utils.classloaders.GenericClassLoader.Verbose=true
-Dweblogic.utils.classloaders.ChangeAwareClassLoader.Verbose=true
-Dweblogic.utils.classloaders.ClasspathClassFinder=true
-Dweblogic.utils.classloaders.DefaultFilteringClassLoader.Verbose=true
-Dweblogic.utils.classloaders.FilteringClassLoader.Verbose=true
-Dweblogic.utils.classloaders.FilteringClassLoader.ResourceDump=true
-Dweblogic.utils.classloaders.URLClassFinder.Verbose=true

Different ways to take thread dumps in WebLogic Server

2014-01-09T11:56:00.000-08:00

Different ways to take thread dumps in WebLogic Server

WebLogic Server (WLS) and Java offer several ways to generate thread dumps, they are detailed below. It is always recommended to obtain the thread dumps by using operating system (OS) commands rather than by using Java classes or the Administration Console, because if the console is hanging, users won't be able to connect to it to issue thread dumps.

Use operating system commands to get the thread dumps when WLS starts up from a command-line script:
- On Windows OSes, thread dumps can be created by
  + -- the thread dumps are generated in the server stdout
- On POSIX-compliant platforms (e.g. Solaris and Linux), first identify the process ID (pid) usingps -ef | grep java, then run
  kill -3 2>&1
  Signal 3 is equivalent to SIGQUIT. Note that in Solaris, the thread dump is generated in the current shell, but in Linux, the thread dump is generated in the shell which started the java process specified by the pid.
Using beasvc (up to WLS 10.3.5 included):
beasvc -dump -svcname:
- service_name is the Windows service that is running the server instance (e.g. mydomain_myserver)
Using wlsve (from 10.3.6/12.1.1):
wlsve -dump -svcname:
Using weblogic.WLST:
setDomain.cmd or setDomain.sh depending on the OS
java weblogic.WLST
connect("","","t3://:")
threadDump()
The thread dump will be generated in Thread_Dump_AdminServer.txt. Note 1274713.1 addresses WLST thread dump in more details with examples on how to define sleep time between each dump and number of dumps to take.
From a command line or shell, a thread dump can be generated via the following command (deprecated from WLS 9.0):
setDomain.cmd or setDomain.sh depending on the OS
java weblogic.Admin : -username -password THREAD_DUMP
The thread dump will be generated in the defined server stdout.
From the WLS Administration Console, a thread dump can be created by navigating to Server -> -> Monitoring -> Dump threads stack. This method could lead to truncated or incomplete thread dumps.
From the Services Administration Tools when WLS runs as a Windows Service, see Note 1348645.1
Java VisualVM can also be used to take thread dumps while applications are running, see http://docs.oracle.com/javase/6/docs/technotes/guides/visualvm/applications_local.html for more details
With jstack
jstack or jstack -l to print additional information about locks
From the JRockit command line:
jrcmd print_threads

Difference between '<'context:annotation-config'>' vs '<'context:component-scan'>'

2013-04-18T15:12:00.001-07:00

Please see the below link
http://stackoverflow.com/questions/7414794/difference-between-contextannotation-config-vs-contextcomponent-scan

Oracle Identity Analytics (OIA) 11g LDAP Integration for User Authentication

2013-04-14T11:29:00.002-07:00

http://www.youtube.com/watch?v=OExtDJe4D0s

Oracle Integration Using Oracle Fusion Middleware, SOA and BPEL

2013-04-14T11:29:00.000-07:00

http://www.youtube.com/watch?v=r25V4L_2HsE

Oracle SOA Introduction Video

2013-04-14T11:27:00.001-07:00

http://www.youtube.com/watch?v=aY4q99LSbzo

Oracle - Understanding WebLogic Architecture

2013-04-14T11:25:00.002-07:00

http://www.youtube.com/watch?v=5RfuuKNbVTU

Filetype(MIME type) check Using JMimeMagic

2013-04-13T20:33:00.001-07:00

Checking the file extension is not a very strong way to determine the file type. A more robust solution is possible with theJMimeMagic library. JMimeMagic is a Java library (LGLP licence) that retrieves file and stream mime types by checking magic headers.

See the below implementation of JMimeMagic to check the file MIME type

private String VIRUS_FILE_MIME_TYPE = "???";
private String RTF_FILE_MIME_TYPE = "rtf";
private String MSWORD_FILE_MIME_TYPE = "msword";
private String MIME_TYPE_NOTAVAILABLE = "text/plain";

//file extension check
byte[] buf = new byte[1024];

if(multipartFile.getBytes().length > 100){

fileIS.read(buf, 0, 100);

}else{

fileIS.read(buf, 0, multipartFile.getBytes().length);

}

MagicMatch match = null;

String mimeType = null;

try{

match = Magic.getMagicMatch(buf, false);

} catch (MagicParseException mpe){

logger.error("MagicParseException-->"+mpe);

} catch (MagicMatchNotFoundException mmf){

logger.error("MagicMatchNotFoundException-->"+mmf);

} catch (MagicException me){

logger.error("MagicException-->"+me);

}catch (Exception e){

logger.error("Magic Exception-->"+e);

}

if(match != null) {
mimeType = match.getMimeType();
}

logger.debug("MagicMatch mimeType(contenttype):"+mimeType);

String mimeTypeFirstSubStr="";
String mimeTypeSecondSubStr="";

if(mimeType != null && mimeType.length() >0){
int index = mimeType.indexOf("/");

if(index >0){
// In File MIMETYPE first part (ex. in application/rtf first part application and rtf is second part)
mimeTypeFirstSubStr = mimeType.substring(0, index);
// In File MIMETYPE second part
mimeTypeSecondSubStr = mimeType.substring(index+1, mimeType.length());
}
}

String contentType = multipartFile.getContentType();

logger.debug("File extension content type:"+contentType);

String contentTypeFirstSubStr="";
String contentTypeSecondSubStr="";

if(contentType != null && contentType.length() >0){
int index = contentType.indexOf("/");

if(index >0){
// In File CONTENTTYPE first part (ex. in application/rtf first part application and rtf is second part)
contentTypeFirstSubStr = contentType.substring(0, index);
// In File CONTENTTYPE second part
contentTypeSecondSubStr = contentType.substring(index+1, contentType.length());

}

}

logger.info("File original content type "+ mimeType + " extension content type:"+contentType);

//MIME TYPE check logic
if(mimeType != null && !"".equalsIgnoreCase(mimeType) && !MIME_TYPE_NOTAVAILABLE.equalsIgnoreCase(mimeType)){

if(!"".equalsIgnoreCase(mimeTypeFirstSubStr)&&!"".equalsIgnoreCase(contentTypeFirstSubStr)){
if(!mimeTypeFirstSubStr.equalsIgnoreCase(contentTypeFirstSubStr)){
if((!"".equalsIgnoreCase(mimeTypeSecondSubStr) && !"".equalsIgnoreCase(contentTypeSecondSubStr)) && (!mimeTypeSecondSubStr.equalsIgnoreCase(contentTypeSecondSubStr))){

//If RTF file is converted to MSWORD or MSWORD file is converted to RTF
if(!(RTF_FILE_MIME_TYPE.equalsIgnoreCase(mimeTypeSecondSubStr) && MSWORD_FILE_MIME_TYPE.equalsIgnoreCase(contentTypeSecondSubStr)) &&
!(MSWORD_FILE_MIME_TYPE.equalsIgnoreCase(mimeTypeSecondSubStr) && RTF_FILE_MIME_TYPE.equalsIgnoreCase(contentTypeSecondSubStr))){
notAllowedFile = true;
}

}
}
//For virus files
}else if(mimeType != null && !"".equalsIgnoreCase(mimeType) && VIRUS_FILE_MIME_TYPE.equalsIgnoreCase(mimeType)){
notAllowedFile = true;
}
}

if(notAllowedFile){
String message = String.valueOf(XMLConfigurationManager.getInstance().getConfig().getList("CustomerMessage.Errors.DocNotAllowedFileTypeMsg"));
message = message.substring(1,message.length()-1);
customerMessageService.setErrorMessage(message);
}

Sorting problem with Displaytag + Webflow

2013-04-13T20:12:00.000-07:00

Please modify the display tag implementation like below .

excludedParams="*"

defaultsort="1" defaultorder="ascending" sort="page" requestURI="${myURL}_eventId=redisplay" pagesize="${fileupload_table_pagesize}">
There is -no- problem with this. Sorting links will work fine, paging links will work fine, no javascript, no hassle, just plain elegant code.

It Solves the below errorError

Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 0): Field or property 'd' cannot be found on object of type 'com.test..model.entity.Application'

at org.springframework.expression.spel.ast.PropertyOrFieldReference.readProperty(PropertyOrFieldReference.java:208)

2013-04-13T19:35:00.002-07:00

Good evening guys .. from today I will start writing about spring frame work with Weblogic portal

Thanks,
Venkata Sarvabatla

JSR 168 VS JSR 286

2012-04-29T21:29:00.003-07:00

Simple format

The major improvements from JSR 168, (as noted in the JSR 286 document)

Events – enabling a portlet to send and receive events and perform state changes or send further events as a result of processing an event.
Public render parameters – allowing portlets to share parameters with other portlets.
Resource serving – provides the ability for a portlet to serve a resource.
Portlet filter – allowing on -the -fly transformations of information in both the request to and the response from a portlet.

Apart for these major differences,there are many minor changes like

getNamespace() – this method gives unique value for the portlet window
getWindowsID()- this method returns portlet window ID
Portlet Cookies- Can beset on particular phase and retrieved on the subsequest phase
Additions to PortletRequestDispatcher
Portlet container runtime options
New CSS classess

JSR168 vs JSR 286

2012-04-29T21:22:00.001-07:00

JSR-168 – What is missing?
• inter-portlet communication
• serving non-html resources (pdf, doc, images etc.)
• contributing javascript or css to , using cookies
• proper support for common web frameworks
• portlet filters
Inter-portlet communication
• only supported within the same portlet application
using session attributes
• target portlets will only “see” messages during next
render request
• portlets cannot (should not) update their state during a
render request: “event” handling not really possible
Serving non-html resources
• A portlet can only render html fragments
• Have to fallback/delegate to the servlet container
• Requires coordination between portlet and servlet
Contributing to , setting cookies
• javascript or css can only be embedded withing the
content markup; no body onLoad handling hooks
• API forbids adding cookies: only client side setting of
cookies using javascript is possible
Proper support for common web frameworks
• Most web frameworks are Servlet API only
• Servlet dispatching not supported from processAction
• Needs Portals Bridges or similar solutions
• JSTL support very limited:
ut value=”<%= ((FooBean)renderRequest.getSession()
.getAttribute("fooBean",PortletSession.PORTLET_SCOPE))
.getBeanValue() %>"/>

JSR-286 - Coming up

• Portlet Specification 2.0
• Expert Group started January 2006
• 1st Early Public Draft released August 2006
covering most, but not yet all, planned features
• 2nd Early Public Draft November 2006
covering all features
• 1st Public Draft December 2006
• Final Release May 2007
• RI will be done under Apache Pluto umbrella with help
from a group at University of Jena
• Binary compatible with JSR-168
• Alignment with J2EE 1.4, WSRP 2.0
• Portlet coordination
• Public render parameters
• Shared session state across applications (maybe)
• Portlet events
• Resource serving
• AJAX support
• Portlet filters
• Extended cache support
• Improved support for common web frameworks
• ... and more

WebCenter Quick Install Guide

2011-11-02T15:09:00.000-07:00

You can get all the software from the following link - http://www.oracle.com/technology/software/products/middleware/htdocs/fmw_11_download.html

1.Oracle Database 10g Express
2.Repository Creation Utility (RCU 11.1.1.2.0) - used to create the necessary repositories
3.WebLogic Server (10.3.2) - wls1032_linux32.bin
4.Web Tier Utilities (11.1.1.2.0) - Oracle Apache installer
5.WebCenter Suite (11.1.1.2.0) - WebCenter installer
6.Content Management for WebCenter (10.1.3.5.1) - directory with Content Server install - to be used during WebCenter installation

Before you Continue...
Check out George Maggessy's great post about installation, with lots of screenshots that help visualize the steps below.

Missing em.ear file while installing 11gR2 in Windows XP

2011-08-15T13:21:00.000-07:00

I downloaded the files from OTN with following names:

win64_11gR2_database_1of2.zip
win64_11gR2_database_2of2.zip

Extracted both into the SAME directory with these names

C:\Oracle\Disk1
C:\Oracle\Disk2

Started the installation from C:\Oracle\Disk1\database\setup.exe

And the Installation failed due to file not found of {C:\app\11g\product\11.2.0\dbhome_1\oc4j\j2ee\oc4j_applications\WFMLRSVCApp.ear and some other files too}

I went through the http://download.oracle.com/docs/cd/E11882_01/install.112/e10843/toc.htm but there was nothing which mentioned where or how to rename the directories.

All my downloaded files were in the same directory but still I was facing the problem.

As both zip files contained database folder so I couldn't override the files.

I solved the file not found issue by coping all the folders under C:\Oracle\Disk2\database\stage\Components to C:\Oracle\Disk1\database\stage\Components

After restarting the installation it went like a charm and without any issues.

Thanks,
Venkata Sarvabatla

administrator password reset procedure in weblogic

2011-08-12T13:32:00.000-07:00

hi,

I have followed the following steps on WLS 11g and I was able to start the AdminServer with new username/password.

Steps:
1: open a command prompt.

2: go to the %BEA_HOME%/user_projects/domains/base_domain/bin dir
cd %BEA_HOME%/user_projects/domains/base_domain/bin

3: run the setDomainEnv.cmd file.
4: This will bring you to base_domain dir. Now run the following command:
java weblogic.security.utils.AdminAccount weblogic welcome1 .

Do not forget to use the last "." which is going to inform the utility to create the DefaultAuthenticatorInit.ldift in the Domain_Home dir.

5: Also try to use a password with atleast 8 chars and with at least one numeric digit.

6: then rename the DefaultAuthenticatorInit.ldift that is already present in the %Domain_Home %/security dir to
DefaultAuthenticatorInit_old.ldift and place the newly generated DefaultAuthenticatorInit.ldift file in the %Domain_Home %/security dir.

7: Also delete the %Domain_Home %/servers/AdminServer/security/boot.properties file.

8: Rename the %Domain_Home %/servers/AdminServer/data/ldap/DefaultAuthenticatormyrealmInit.initialized file to DefaultAuthenticatormyrealmInit_old.initialized

9: Now you can try to start the Admin Server with through the command prompt using startWeblogic.cmd file.

Let me know if this resolves the issue or not.

Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine.

2011-08-12T11:12:00.000-07:00

Error :
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.

Answer :
Cause of the error is : Heap size is larger than your computer's physical memory.

try with the below heap sizes

set DEFAULT_MEM_ARGS=-Xms1024m -Xmx1024m
set PORT_MEM_ARGS=-Xms768m -Xmx1536m

if "%JAVA_VENDOR%" == "Oracle" goto OracleJVM
set DEFAULT_MEM_ARGS=%DEFAULT_MEM_ARGS% -XX:PermSize=256m -XX:MaxPermSize=256m
set PORT_MEM_ARGS=%PORT_MEM_ARGS% -XX:PermSize=256m -XX:MaxPermSize=512m

see the below link also :

http://javahowto.blogspot.com/2006/06/6-common-errors-in-setting-java-heap.html

Difference between JSR 168 and JSR 286 portlets

2011-08-10T13:33:00.001-07:00

Java Portlet spefication168 (v1.0) has very basic portlet porgramming model and had lot of limitations for portlet development. Java Portlet spefication286 (v2.0) was developed to overcome the shortcomings on v1.0 specs(JSR 168) such as:

1. Inter portlet communicaiton (IPC) - IPC through events and public render parameters
2. Support for WSRP 2.0
3. Public render paremeters - Allows portlets to share parameters with other portlets.
4. Portlet filters and listeners.
5. Resource serving - Provide ability for portlets to server a resource
6. AJAX support

Configuring and using XA distributed transactions in WebSphere Studio

2011-04-04T16:10:00.001-07:00

Go through the below link

http://www.ibm.com/developerworks/websphere/library/techarticles/0407_woolf/0407_woolf.html

Weblogic:jdbc: java.sql.SQLException: Transaction timed out after 33 seconds

2011-04-01T16:43:00.000-07:00

java.sql.SQLException: Unexpected exception while enlisting XAConnection java.sql.SQLException: Transaction rolled back: Transaction timed out after 33 seconds
BEA1-14053C014C88
at weblogic.jdbc.jta.DataSource.enlist(DataSource.java:1418)
at weblogic.jdbc.jta.DataSource.refreshXAConnAndEnlist(DataSource.java:1330)
at weblogic.jdbc.jta.DataSource.getConnection(DataSource.java:425)
at weblogic.jdbc.jta.DataSource.connect(DataSource.java:382)
at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:338)
at com.ibatis.sqlmap.engine.transaction.external.ExternalTransaction.init(ExternalTransaction.java:53)
at com.ibatis.sqlmap.engine.transaction.external.ExternalTransaction.getConnection(ExternalTransaction.java:90)
at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:615)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:589)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:95)

Solution :

I increased the JTA default timeout from 30s to 120s and I stopped getting that error.

You can goto the weblogic console (http://localhost:7001/console) and once you login goto ->services->JTA. Hope this helps.