P4 Provider Service NetWeaver CE

[Former Member]

Hi all,

I need to configure P4 over SSL on NetWeaver CE, on NW 7.0 the changes were done on Visual Administrator, how to make this changes on NetWeaver CE without Visual Administrator. I need configure it for Dispatcher Instance.

Using ConfigTool, I can change properties just for Java Instance, not for Dispatcher.

Best regards

[thulasi_td · Accepted solution]

Hi Isaias,

On NW CE version, there is no dispatcher node

Regards,

Thulasi

[Former Member · Accepted solution]

Hi,

In NetWeaver CE Dispatcher is replaced with ICM implementation for J2EE server.

Configurations for P4S port are in system profile. For exmaple:

icm/server_port_4 = PROT=P4SEC, PORT=5$(SAPSYSTEM)06

But you need also to configure SSL libraries. (.dll or .so files depending of your OS).

You may contact ICM responsibles for documentation regarding services's port related configurations.

[Former Member · Accepted solution]

Hi Thulasi,

I think that i've made the question on wrong way, the correct is what's the equivalent properties to dispatcher node, because CE doesn't have Dispatcher Node.

Best regards

[Former Member · Accepted solution]

Hi Tsvetko,

I've made this configuration previously, currently i've the https enabled on my NetWeaver CE.

But when I'm trying to connect using P4 over SSL, I'm getting the following error:

-

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CODE TO CONNECT -

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Context ctx = null;

Hashtable env = new Hashtable();

env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sap.engine.services.jndi.InitialContextFactoryImpl");

env.put(Context.PROVIDER_URL, "ceserver:50006");

env.put("TransportLayerQueue", "ssl");

env.put(Context.SECURITY_PRINCIPAL, "Administrator");

env.put(Context.SECURITY_CREDENTIALS, "password");

env.put(Context.URL_PKG_PREFIXES, "com.sap.engine.services");

ctx = new InitialContext(env);

-

---

Feb 5, 2009 11:24:29 AM [1233840269296]:Error : Thread[main,5,main] ....com.sap.engine.services.rmi_p4.ConnectionManager: Connection manager failed to initialize: java.io.IOException: Can't get ServerSocket. Reason:No registered factory for protocol: "ssl" was found in this port manager factory store.

Exception in thread "main" com.sap.engine.services.jndi.persistent.exceptions.NamingException: Exception while trying to get InitialContext. [Root exception is com.sap.engine.interfaces.cross.DestinationException: cannot establish connection with any of the available instances:

ceserver:50006 Reason: java.lang.NullPointerException]

at com.sap.engine.services.jndi.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:488)

at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)

at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)

at javax.naming.InitialContext.init(InitialContext.java:223)

at javax.naming.InitialContext.<init>(InitialContext.java:197)

at Main.main(Main.java:25)

Caused by: com.sap.engine.interfaces.cross.DestinationException: cannot establish connection with any of the available instances:

ceserver:50006 Reason: java.lang.NullPointerException

at com.sap.engine.interfaces.cross.Destination.getNextAvailableBroker(Destination.java:59)

at com.sap.engine.interfaces.cross.Destination.getRemoteBroker(Destination.java:35)

at com.sap.engine.services.jndi.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:352)

... 5 more

I think that i need to register the port on way equivalent to Dispatcher configurations on 7.0 version.

Best regards

[Former Member · Accepted solution]

Hi,

Are you sure, that in your client path there are jar files needed for client:

sap.com_tcje_clientlibimpl.jar;

sap.com_tclogging_javaimpl.jar;

sap.com_tcexception~impl.jar.

Such NullPointerException happens, when instead of clientlib are used different projects in client classpath that does not include P4 library.

Regarding connection via P4S port, you also need a valid certificate generated and imported in client's VM.

Best Regards,

Tsvetko Trendafilov

[Former Member · Accepted solution]

Hi,

I've the files, i can call the EJB without ssl transport layer.

I've the valid certificate, I'm consuming Web Services over HTTPS without problem.

Thanks

[Former Member · Accepted solution]

Hi again,

So when you remove:

env.put("TransportLayerQueue", "ssl");

And change port to 50004

env.put(Context.PROVIDER_URL, "ceserver:50004");

You do not receive any NullPointerExceptions and program works fine?

But in SSL port it throws you NullPointerException?!?

[Former Member · Accepted solution]

Hi,

Yes, without transport layer and with 50004 port works fine and with SSL and 50006 the error occurs

Maybe a configuration must be done, similar to configurations of Dispatcher P4 Properties on 7.0 version. But I didn't find references to it. Unfortunately the CE document talk about Dispatcher P4 properties only.

Thanks

[Former Member · Accepted solution]

Interesting...

What version of NetWeaver CE you are using? I mean which SP.

You can try replacing property with "P4S://" prefix in host name.

env.put(Context.PROVIDER_URL, "P4S://ceserver:50006");

//env.put("TransportLayerQueue", "ssl");

Best regards,

Tsvetko Trendafilov

[Former Member · Accepted solution]

Hi,

I'm using CE 7.1 SP 5

I've tried it previously but without success.

Thanks

[Former Member · Accepted solution]

Does this help:

http://help.sap.com/saphelp_nwce10/helpdata/en/09/392712944fc6478c9f1ff198b6b0a7/frameset.htm

http://help.sap.com/saphelp_nwce10/helpdata/en/46/dee8c819c840e0e10000000a1553f7/frameset.htm

[Former Member · Accepted solution]

Also I found some interesitng tip:

"

• If the adapters are to communicate using HTTPS, additional libraries to implement the SSL protocol are required. You can download the Java libraries iaik_jce.jar and iaik_ssl.jar from SAP Service Marketplace (service.sap.com) Software Distribution Center, under SAP Cryptographic Software, but ensure that you follow the regulations outlined there.

"

Could you try adding these libraries in client's classpath iaik_jce.jar and iaik_ssl.jar (if you haven't already done it).

[Former Member · Accepted solution]

Hi,

This tip solve the problem.

Best regards

[Former Member · Accepted solution]

I'm happy to read this