Calling a CAPI from Java

[J.M.]

Hi,


I'm trying to intantiate some processes from outside RMP, in my case, from Java.
My idea is the following:
In Java, I process a text file, in which, for each of his lines, I will make a call to a CAPI. The only task this CAPI has, is the instantiation of another process I have designed.

I know that making a request to the CAPI's URL is enough to launch it, however, I need to add some parameters in order to use them in my processes.

So, my question is...
¿How should I make the call to my CAPI, from Java, and adding some parameters?


I would appreciate a detailed answer, please.
Thanks in advance and regards.

[Murali]

Hi Javier,

Please refer to code example and guidelines as detailed in earlier resolved post and let us know if you are able to progress for the requirement.

RMP userguide ref: https://docs.runmyprocess.com/Developer_Guide/Composite_API/Composite_API_Example#third-party

Regards,
Murali
Fujitsu RunMyProcess Support

[javiermm...@gmail.com]

Hi Murali,

Thank you for the reply, It is very useful.
But I have some troubles in order to launch a CAPI instead of a process (as it's explained in the post you linked). I think the code is similar, buy I think the dataPOSTed should change, right?

How should the postData be?

Thanks again and regards.

[J.M.]

Hi again,

I'm trying to adapt the code of the mentioned post but I'm not getting it, and I don't know why. I'm getting the following error:
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:618)
at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:160)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1091)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250)
at es.fujitsu.rmp.peticion.PeticionRMP.post(PeticionRMP.java:48)
at es.fujitsu.rmp.peticion.PeticionRMPTest.testPost(PeticionRMPTest.java:56)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)


I attach my code too.



Also, I would like to know:
- Which is the correct way to launch a process from Java: instantiating a process (the code I attach) or calling a CAPI with parameters. What is the difference betweeen both options?
- How can I achieve a solution (for any of them)?
I'm trying to instantiate my process because of the example in the post, but I don't know if it is the correct way.

How can I solve the timeout error in my example?
How would the java code be for launching a CAPI with parameters from JAVA?

Please, help me finding a solution.


Regards.

[Pankaj Kumar]

Hi Javier,

You are using the same xml in java code that is shared by Murali. Please use the xml as per your process configuration. Please refer to attached screen-print for more details.

This code uses the Standard HttpURLConnection API to trigger the process corresponding connector/instantiate the process instance. To know the difference between process and Composite API, please refer to below.

https://docs.runmyprocess.com/Developer_Guide/Composite_API/#Definition

Thank you,

Pankaj Kumar

Fujitsu RunMyProcess Support

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