You can create a thread that starts a task in CICS by using the CICSExecutorService. If you use this service to create a thread, a CICS task is created that can use the JCICS API to access CICS services.
You have two options for creating a thread that starts a CICS task. If you want your code to be portable, you can use the ExecutorService in the OSGi framework. When the application is running in a JVM server, the OSGi framework automatically uses the CICS implementation to start a CICS task when a thread is created. If you are writing an application specifically for CICS, you can use the CICSExecutorService class directly using JCICS.
package com.ibm.cics.executor.test;
import com.ibm.cics.server.CICSExecutorService;
import com.ibm.cics.server.TSQ;
import com.ibm.cics.server.TSQType;
public class ExecutorTest
{
public static void main(String[] args)
{
// Inline the new Runnable class
class CICSJob implements Runnable
{
public void run()
{
// Create a temporary storage queue
TSQ test_tsq = new TSQ();
test_tsq.setType(TSQType.MAIN);
// Set the TSQ name
test_tsq.setName("TSQWRITE");
// Write to the temporary storage queue
// Use the CICS region local CCSID so it is readable
String test_string = "Hello from a non CICS Thread - "+ threadId;
try
{
test_tsq.writeItem(test_string.getBytes(System.getProperty("com.ibm.cics.jvmserver.local.ccsid")));
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
// Create and run the new CICSJob Runnable
Runnable task = new CICSJob();
CICSExecutorService.runAsCICS(task);
}
}