API Connect

Hello ,

I work with IIB 9.0 and i want to publish my EJB as API .

But I have an  error in the line 29 in my class (below)  the error is : cannot cast class java.lang.stub.java.rmi._Remote_Stub to interface ackNoAckHome

Public class CallAckNoAckEJB_JavaCompute extends MbJavaComputeNode {

public void evaluate(MbMessageAssembly inAssembly) throws MbException {
MbOutputTerminal out = getOutputTerminal("out");
MbOutputTerminal alt = getOutputTerminal("alternate");

MbMessage inMessage = inAssembly.getMessage();

// create new message
MbMessage outMessage = new MbMessage(inMessage);
MbMessageAssembly outAssembly = new MbMessageAssembly(inAssembly,outMessage);

try {
// ----------------------------------------------------------
// Add user code below

String response = null;
String responseMessage = null;

Properties properties = new Properties();
properties.put(Context.PROVIDER_URL, "iiop://localhost:2809");
properties.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.
WsnInitialContextFactory");

try {

Context initialContext = new InitialContext(properties);
Object obj = initialContext.lookup("ejb/com/acme/ejbs/AckNoAckHome");
AckNoAckHome ejbHome = (AckNoAckHome)javax.rmi.PortableRemoteObject.narrow(obj,AckNoAckHome.class);

AckNoAck ackNoAck = ejbHome.create();
responseMessage = ackNoAck.getAck();
response = "Ack";
} catch(Exception e) {
responseMessage = e.getMessage();
response = "NoAck";
}

MbElement cursor = outMessage.getRootElement().getFirstElementByPath("/XML/AckNoAck");
cursor.createElementAsLastChild(MbElement.TYPE_NAME,"Response",null);
cursor.getLastChild().createElementAsLastChild(MbElement.TYPE_NAME,response,null);
cursor.getLastChild().getLastChild().createElementAsLastChild(MbElement.TYPE_VALUE,null,
responseMessage);

// End of user code
// ----------------------------------------------------------

// The following should only be changed
// if not propagating message to the 'out' terminal
out.propagate(outAssembly);

} finally {
// clear the outMessage
outMessage.clearMessage();
}
}
}

Best Regrads
Adil

------------------------------
adil safieddine
------------------------------

I think you might have posted this in the wrong group. I think you want App Connect, not API Connect.

Try here: https://community.ibm.com/community/user/integration/communities/community-home?CommunityKey=77544459-9fda-40da-ae0b-fc8c76f0ce18

------------------------------
Chris Dudley
------------------------------

Original Message:
Sent: Tue July 05, 2022 11:47 AM
From: adil safieddine
Subject: Publish EJB as API

Hello ,

I work with IIB 9.0 and i want to publish my EJB as API .

But I have an  error in the line 29 in my class (below)  the error is : cannot cast class java.lang.stub.java.rmi._Remote_Stub to interface ackNoAckHome

Public class CallAckNoAckEJB_JavaCompute extends MbJavaComputeNode {

public void evaluate(MbMessageAssembly inAssembly) throws MbException {
MbOutputTerminal out = getOutputTerminal("out");
MbOutputTerminal alt = getOutputTerminal("alternate");

MbMessage inMessage = inAssembly.getMessage();

// create new message
MbMessage outMessage = new MbMessage(inMessage);
MbMessageAssembly outAssembly = new MbMessageAssembly(inAssembly,outMessage);

try {
// ----------------------------------------------------------
// Add user code below

String response = null;
String responseMessage = null;

Properties properties = new Properties();
properties.put(Context.PROVIDER_URL, "iiop://localhost:2809");
properties.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.
WsnInitialContextFactory");

try {

Context initialContext = new InitialContext(properties);
Object obj = initialContext.lookup("ejb/com/acme/ejbs/AckNoAckHome");
AckNoAckHome ejbHome = (AckNoAckHome)javax.rmi.PortableRemoteObject.narrow(obj,AckNoAckHome.class);

AckNoAck ackNoAck = ejbHome.create();
responseMessage = ackNoAck.getAck();
response = "Ack";
} catch(Exception e) {
responseMessage = e.getMessage();
response = "NoAck";
}

MbElement cursor = outMessage.getRootElement().getFirstElementByPath("/XML/AckNoAck");
cursor.createElementAsLastChild(MbElement.TYPE_NAME,"Response",null);
cursor.getLastChild().createElementAsLastChild(MbElement.TYPE_NAME,response,null);
cursor.getLastChild().getLastChild().createElementAsLastChild(MbElement.TYPE_VALUE,null,
responseMessage);

// End of user code
// ----------------------------------------------------------

// The following should only be changed
// if not propagating message to the 'out' terminal
out.propagate(outAssembly);

} finally {
// clear the outMessage
outMessage.clearMessage();
}
}
}

Best Regrads
Adil

------------------------------
adil safieddine
------------------------------

There are so many things wrong with your approach...

• IIB / ACE is not a J2EE server
• Your JCN node will never work

The right kind of approach would do this:

• run the EJB in your J2EE server of choice
• Have it consume the message put on a queue by IIB / ACE and put a response on a response queue if one is expected.
• run a flow from IIB / ACE that you can publish to APIC => here is your EJB as service
  • The flow receives the call from APIC, if need be changes content and puts message to EJB queue
  • The flow receives Response from EJB as put to a reply queue, if need be, it changes the content and sends response to APIC

Hope that helps some.

------------------------------
Francois Brandelik
------------------------------

Original Message:
Sent: Tue July 05, 2022 11:47 AM
From: adil safieddine
Subject: Publish EJB as API

Hello ,

I work with IIB 9.0 and i want to publish my EJB as API .

But I have an  error in the line 29 in my class (below)  the error is : cannot cast class java.lang.stub.java.rmi._Remote_Stub to interface ackNoAckHome

Public class CallAckNoAckEJB_JavaCompute extends MbJavaComputeNode {

public void evaluate(MbMessageAssembly inAssembly) throws MbException {
MbOutputTerminal out = getOutputTerminal("out");
MbOutputTerminal alt = getOutputTerminal("alternate");

MbMessage inMessage = inAssembly.getMessage();

// create new message
MbMessage outMessage = new MbMessage(inMessage);
MbMessageAssembly outAssembly = new MbMessageAssembly(inAssembly,outMessage);

try {
// ----------------------------------------------------------
// Add user code below

String response = null;
String responseMessage = null;

Properties properties = new Properties();
properties.put(Context.PROVIDER_URL, "iiop://localhost:2809");
properties.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.
WsnInitialContextFactory");

try {

Context initialContext = new InitialContext(properties);
Object obj = initialContext.lookup("ejb/com/acme/ejbs/AckNoAckHome");
AckNoAckHome ejbHome = (AckNoAckHome)javax.rmi.PortableRemoteObject.narrow(obj,AckNoAckHome.class);

AckNoAck ackNoAck = ejbHome.create();
responseMessage = ackNoAck.getAck();
response = "Ack";
} catch(Exception e) {
responseMessage = e.getMessage();
response = "NoAck";
}

MbElement cursor = outMessage.getRootElement().getFirstElementByPath("/XML/AckNoAck");
cursor.createElementAsLastChild(MbElement.TYPE_NAME,"Response",null);
cursor.getLastChild().createElementAsLastChild(MbElement.TYPE_NAME,response,null);
cursor.getLastChild().getLastChild().createElementAsLastChild(MbElement.TYPE_VALUE,null,
responseMessage);

// End of user code
// ----------------------------------------------------------

// The following should only be changed
// if not propagating message to the 'out' terminal
out.propagate(outAssembly);

} finally {
// clear the outMessage
outMessage.clearMessage();
}
}
}

Best Regrads
Adil

------------------------------
adil safieddine
------------------------------

Original Message:
Sent: 7/6/2022 4:32:00 AM
From: Francois Brandelik
Subject: RE: Publish EJB as API

There are so many things wrong with your approach...

• IIB / ACE is not a J2EE server
• Your JCN node will never work

The right kind of approach would do this:

• run the EJB in your J2EE server of choice
• Have it consume the message put on a queue by IIB / ACE and put a response on a response queue if one is expected.
• run a flow from IIB / ACE that you can publish to APIC => here is your EJB as service
  • The flow receives the call from APIC, if need be changes content and puts message to EJB queue
  • The flow receives Response from EJB as put to a reply queue, if need be, it changes the content and sends response to APIC

Hope that helps some.

------------------------------
Francois Brandelik
------------------------------

Original Message:
Sent: Tue July 05, 2022 11:47 AM
From: adil safieddine
Subject: Publish EJB as API

Hello ,

I work with IIB 9.0 and i want to publish my EJB as API .

But I have an  error in the line 29 in my class (below)  the error is : cannot cast class java.lang.stub.java.rmi._Remote_Stub to interface ackNoAckHome

Public class CallAckNoAckEJB_JavaCompute extends MbJavaComputeNode {

public void evaluate(MbMessageAssembly inAssembly) throws MbException {
MbOutputTerminal out = getOutputTerminal("out");
MbOutputTerminal alt = getOutputTerminal("alternate");

MbMessage inMessage = inAssembly.getMessage();

// create new message
MbMessage outMessage = new MbMessage(inMessage);
MbMessageAssembly outAssembly = new MbMessageAssembly(inAssembly,outMessage);

try {
// ----------------------------------------------------------
// Add user code below

String response = null;
String responseMessage = null;

Properties properties = new Properties();
properties.put(Context.PROVIDER_URL, "iiop://localhost:2809");
properties.put(Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.
WsnInitialContextFactory");

try {

Context initialContext = new InitialContext(properties);
Object obj = initialContext.lookup("ejb/com/acme/ejbs/AckNoAckHome");
AckNoAckHome ejbHome = (AckNoAckHome)javax.rmi.PortableRemoteObject.narrow(obj,AckNoAckHome.class);

AckNoAck ackNoAck = ejbHome.create();
responseMessage = ackNoAck.getAck();
response = "Ack";
} catch(Exception e) {
responseMessage = e.getMessage();
response = "NoAck";
}

MbElement cursor = outMessage.getRootElement().getFirstElementByPath("/XML/AckNoAck");
cursor.createElementAsLastChild(MbElement.TYPE_NAME,"Response",null);
cursor.getLastChild().createElementAsLastChild(MbElement.TYPE_NAME,response,null);
cursor.getLastChild().getLastChild().createElementAsLastChild(MbElement.TYPE_VALUE,null,
responseMessage);

// End of user code
// ----------------------------------------------------------

// The following should only be changed
// if not propagating message to the 'out' terminal
out.propagate(outAssembly);

} finally {
// clear the outMessage
outMessage.clearMessage();
}
}
}

Best Regrads
Adil

------------------------------
adil safieddine
------------------------------