JPOS testing (Functional and Perf ) using Apache Jmeter - jmeter

Question

I want to perform functional test of JPOS based ISO message and response(TPS) using Jmeter.Can anyone guide me on this?Do I need to install any plugin in Jmeter.As I have tried to install the Jmeter in my system.But Can't see any Jpos plugin in listeners to start with.Dev is Using Socket connection in Jpos.

Answer 1

I don't think you will be able to find any plugin, however you should be able to use jPOS client library from the JSR223 Sampler
Download the jPOS and build it using Gradle
Copy jpos/build/libs/jpos-x.x.x.jar to JMeter Classpath (along with dependencies, if you don't have them yet)
Restart JMeter to pick the library up
Add JSR223 Sampler to your Test Plan and put the code, implementing your test scenario into "Script" area, an example would be something like:
import org.jpos.iso.ISOMsg
import org.jpos.iso.channel.ASCIIChannel
import org.jpos.iso.packager.ISO87APackager
def host = 'your_host'
def port = 1234
def channel = new ASCIIChannel(host, port, new ISO87APackager())
channel.connect()
def message = new ISOMsg()
message.setMTI("0800")
message.set(3, "000000")
message.set(41, "00000001")
message.set(70, "301")
channel.send(message)
ISOMsg response = channel.receive()
channel.disconnect()
More information:
jPOS Programmer’s Guide
Apache Groovy - Why and How You Should Use It

Answer 2

We can send a XML or rawMessage to jpos server from the Jmeter TCPSampler
You can also add TPS listeners
enter image description here
And JPosTCPClient can be implemented
public class JPosTCPClient extends TCPClientImpl {
private static final Logger log = LoggingManager.getLoggerForClass();
private String containsString = "</isomsg>";
private boolean filterEnabled = true;
public JPosTCPClient() {
filterEnabled = Boolean.parseBoolean(JMeterUtils.getPropDefault("jpos.tcp.use", "true"));
containsString = JMeterUtils.getPropDefault("jpos.tcp.contains", "</isomsg>");
}
/**
* Reads data until the defined EOL byte is reached.
* If there is no EOL byte defined, then reads until
* the end of the stream is reached.
*/
#Override
public String read(InputStream is) {
byte[] buffer = new byte[4096];
ByteArrayOutputStream w = new ByteArrayOutputStream();
int x = 0;
boolean contains = false;
try {
while ((x = is.read(buffer)) > -1) {
w.write(buffer, 0, x);
if(filterEnabled){
String response = new String(buffer);
if(response.contains(containsString)){
contains = true;
break;
} else {
System.out.println("Contents: " + response);
}
}
}
if(filterEnabled && !contains){
System.out.println("Skipped containsString checking, x length:" + x);
}
} catch (SocketTimeoutException e) {
// drop out to handle buffer
System.out.println(e.getMessage());
} catch (InterruptedIOException e) {
// drop out to handle buffer
System.out.println(e.getMessage());
} catch (IOException e) {
System.out.println(e.getMessage());
log.warn("Read error:" + e);
return "";
}
// do we need to close byte array (or flush it?)
log.debug("Read: " + w.size() + "\n" + w.toString());
return w.toString();
}
}