My application reads an XML request from WebSphere MQ and responds with single or multiple java object(s). While i can use JMS point-to-point sampler to post the XML request and subscriber sampler to catch the java object posted back by my application. Now i want the deserialization of the java objects to be able to assert the same. I have the required jar(s) that can help me in deserialization but i am not aware as to how i can perform this in jmeter. Can someone please provider directions as to how i can proceed?
You will need to have all the necessary dependencies in your JMeter's /lib folder.
You can then just add a JSR-223 sampler/post-processor that executes the Java code that you want using those dependencies. You can choose any of the scripting languages there, but be aware of the performance problems that some of them have (BeanShell caused GC lag for me).
Add JSR223 PostProcessor as a child of the JMS P2P Sampler and put the deserializing code into it. When you convert binary response to String you will be able to assign the value to a JMeter Variable as:
vars.put("variableName", variableValue);
and use it in Assertion (JMeter Assertions can target JMeter Variables).
It is recommended to use Groovy as JSR223 element language as JavaScript, Beanshell, etc. interpreters have some performance issues, besides they're quite out of date and Groovy scripts can be compiled into bytecode (assuming test element being properly configured) providing maximum performance.
See Beanshell vs JSR223 vs Java JMeter Scripting: The Performance-Off You've Been Waiting For! guide for instructions on how to setup groovy scripting engine support, best practices in regards to caching/using variables/etc. and some form of different scripting engines benchmark.
Related
Thread Group
BeanShell Sampler (calcuate parameter and put in user defined variable)
Loop
Java Sampler (with parameters).
Inside the Summary Report I see that the BeanShell Sampler are listed, and I don't want this as it affects the final average throughput ; how can this be remedied? Is there a substitute object?
I noticed that if I put in a BeanSell Pre Processor it gets called every time a Java sampler is run, which I don't want (tell me if I'm wrong).
You can invoke the following function anywhere in your Beanshell Sampler:
SampleResult.setIgnore();
More information: SampleResult.setIgnore() JavaDoc
Also be aware that starting from JMeter 3.1 it's recommended to use JSR223 Test Elements and Groovy language for scripting as Groovy has much better performance comparing to Beanshell, see Apache Groovy - Why and How You Should Use It for details.
I want using JMeter to benchmark server to server communication (Java Spring) with different data serialization format than JSON
Article Why not JSON? is suggesting MessagePack
MessagePack is an efficient binary serialization format. It lets you exchange data among multiple languages like JSON. But it's faster and smaller.
Can I use JMeter for benchmark sending JSON messages vs MessagePack and what can it compare? Can I check the time for getting request on receiver side or also time to prepare and send request on sender side? Or there are other considerations/known issues that prevent either?
You can use JMeter for literally anything, in case of MessagePack you can go for MessagePack Serializer for Java - this will allow you creating binary request payloads on JMeter side i.e. using JSR223 PreProcessor and Groovy language (it's 99.9% Java-compatible so example code will work just fine)
With regards to metrics, they should be the same as usually, your main targets should be:
Response time (lower is better)
Throughut - number of requests per unit of time (higher is better)
Given JSON and MessagePack are served by the same host network-specific metrics like Latency and Connect Time and be ignored. Check out JMeter Glossary for main metrics listed and explained.
I would also pay attention to server-side metrics like CPU or Memory usage as potentially deserialising binary data and serialising it back can be more resources intensive so my expectation is that MessagePack implementation will have larger footprint. You can use i.e. SSHMon Listener or JMeter PerfMon Plugin in order to check your system under test resources usage while your test is running - this way you will be able to correlate increasing load with increasing resources consumption.
Has someone embedd a simple script language in a JAVA application.
My purpose is todivide the application in 3 part
Part 1) Hardcoded in java the application read from 2 source(Db, file,scocket,..., mind) and store 2 object.
Part2) The application in conjuction with the embedded scripting language make a a decisionedit the object and at the end call an exposed function eg: if the 2 object has the same namecall the function do nthing, if the name of the second object the next step isto call the update function.
Part3) the java application do the job that has been called.
Now i'm doing this with an application that use a JAR file with a lot of interface. So if i wont to expose only the step 2 ican give the specification of interface. The idea is to copy JDBC. Anyway it's difficult for tecnichan to write and compile in pere JAVA and create a JAR. So i'm looking for a good replacement. But it has to simple but powerful as jar replacement. I'm not trying to compile evrything in a single JAR i need them well separated.
THANKS
There is the Java Scripting API for this purpose.
Groovy for example provides an implementation to load, compile, interface, and execute Groovy scripts from within your Java application.
You can also try MVEL http://mvel.codehaus.org/
MVEL is a powerful expression language for Java-based applications.
It is fast anf easy to use.
expression language = java as scripting language
I'm a java programmer. I use bash scripts a lot for text processing.
Utilities like grep,sed,awk,tr,wc,find, along with piping between commands gives such a powerful combination.
However bash programming lacks portability, testability and the more elegant programming constructs that exist in Java. It also makes it harder to integrate into our other Java products.
I was wondering if anyone knows of any Java text processing libraries out there which might offer what I'm looking for.
It would be so cool to be able to write:
Text.createFromFile("blah.txt).grep("-v","ERROR.*").sed("s/ERROR/blah/g").awk("print $1").writeTo("output.txt")
This might be pie-in-in-the-sky stuff. But thought I'd put the question out there anyway.
Unix4j implements some basic unix commands, mainly focussing on text-processing (with support for piping between commands): http://www.unix4j.org
Example (Ben's example, but without awk as this is not currently supported):
Unix4j.fromStrings("1:here is no error", "2:ERRORS everywhere", "3:another ERROR", "4:nothing").toFile("blah.txt");
Unix4j.fromFile("blah.txt").grep(Grep.Options.v, "ERROR.*").sed("s/ERROR/blah/g").toFile("output.txt");
Unix4j.fromFile("output.txt").toStdOut();
>>>
1:here is no error
4:nothing
Note:
the author of the question is involved in the unix4j project
Believe it or not, but I used embedded Ant for many of those tasks.
Update
Ant has Java api's that allow it to be called from Java projects. This is embedded mode. This is a reference to And Api 1.6.1. Distribution should include docs as well.
To use it, you would create new task object, set appropriate parameters and execute it just as you would in build.xml but via Java Api. Than you can run your task.
Something like
ReplaceRegExp regexp = new ReplaceRegExp();
regexp.setMatch("bla");
regexp.setFile(new File("inputFile"));
regexp.execute();
You may need to set up some other stuff as well.
Not sure if it solves your problem, but Ant has a lot of code to do things. Just search through docs.
I'm looking for a Java library for SWIFT messages. I want to
parse SWIFT messages into an object model
validate SWIFT messages (including SWIFT network validation rules)
build / change SWIFT messages by using an object model
Theoretically, I need to support all SWIFT message types. But at the moment I need MT103+, MT199, MT502, MT509, MT515 and MT535.
So far I've looked at two libraries
AnaSys Message Objects (link text)
Datamation SWIFT Message Suite (link text)
Both libraries allow to accomplish the tasks mentioned above but in both cases I'm not really happy.
AnaSys uses a internal XML representation for all SWIFT messages which you need to know in order to access the fields of a message. And you need to operate on the DOM of the XML representation, there is no way to say "get the contents of field '50K' of the SWIFT message".
And the Datamation library seems to have the nicer API but does not find all errors.
So does anyone know other SWIFT libraries to use?
Have you looked at WIFE? We use that in our application which translates SWIFT messages to an internal XML format and back again. We haven't had any problems with it. Also, it's licensed under the LGPL, so you can hack it up if you need to. Check it out.
SWIFT is releasing a "Standards Developer Kit" which includes an "MT/XML Schema Library".
From the doc:
"The MT/XML Schema Library is a complete set of XML schema definitions for MT messages, and software which shows how to convert messages from an MT format to an MT XML representation and back. This approach allows XML integration between applications while the MT (FIN) format will continue to be transported over the SWIFT network."
Java source code will also be made available, again from the doc:
"Working sample Java source code that converts a message in MT format to an XML instance and from an XML instance to a message in MT format."
See: http://www.swift.com/support/drc/develop/standards.page
This can be a great aid in dealing with FIN messages in XML syntax.
You can combine the open source implementation WIFE with the commercial validation component from http://www.prowidesoftware.com. It validates that the messages you create with the model or XML representation are good through SWIFT network validation rules.
There is a product call Volanté that make a great job. Their solution is certified by SWIFT and the integration is easy ( I sound like I'm working for them ... I'm not). I've been using it since a couple of month .
IBM is also offering a solution (cannot remember to name right now) but then you are committed to the big blue.
If your company is not comfortable with the LGPL license, You might want to check Progress Sonic ESB, or ArtixDS (recently acquired), TIBCO ActiveWhatever or Oracle/BEA Aqualogic. Chances are you are already using something from these companies and you can get decent discount.
Along with jodonnell, we also use WIFE. It works very well. I'm not sure if it does the network validation rules (#2 on your list) though.
paymentcomponents (http://www.paymentcomponents.com/) parser was easy to use and found all errors. Their site definitely needs work but if u look there, u'll find what u r looking for
I can not really help you out with a Java implementation. Microsoft of course, have their own Biztalk adapter for ISO15022 and 20022. And they will actually do the validation fairly well. But as you say you are actually looking for a java solution.
You might find, as I did when I researched this 6 years ago, that mapping FIN messages to XML and then to into objects, a standard library will only get you partly to your goal. You will have to integrate this with your backend application and whatever market practices you face in the particular messages you need to support.
I finally ended up writing a generic FIN parser /150022 class library in c++.
Anyway, good luck. An idea is to be more specific in your question. What types of messages do you need to support?
Datamation's libraries have evolved since then. If you need a corresponding solution in 2021, you can check FINaplo by PaymentComponents (formerly called Datamation), a multi-purpose implementation for financial messages.
It provides online validation/parse/translation/envelope services, Java SDKs, as well as REST solutions, all including error specifications. I am actually one of the authors.
A demo for a SWIFT MT Java library can be found in this GitHub link.