Using a Java program as a working node for celery

Celery is a python implementation of the distributed scheduling framework, sometimes want to use celery to invoke the Java service, there is a Celery-java library can be used, to achieve this effect, record:

Add Dependencies First:

        <dependency>            <groupId>com.geneea.celery</groupId>            <artifactId>celery-java</artifactId>            <version>1.10.4</version>        </dependency>

Define task Classes FirstTestTask.java

import com.geneea.celery.CeleryTask;@CeleryTaskpublic class TestTask {    public int sum(int x, int y){        return x + y;    }}

Re-defining the work entry classMyWorker.java

import com.geneea.celery.CeleryWorkerCLI;public class MyWorker {    public static void main(String[] args) throws Exception {        //注意broker的url的末尾/必须用转义符%2F        args = new String[]{"--queue","celery",                            "--concurrency","2",                            "--broker","amqp://guest:[email protected]:5672/%2F"};        CeleryWorkerCLI.main(args);    }}

Run MyWorker a bootable java version of the celery work node:

Started consuming tasks from queue celery.Known tasks:  - cn.main.celery.TestTask

Then define the celery Task Scheduler test.py :

import celeryapp = celery.Celery(broker="amqp://guest:[email protected]:5672//", backend="rpc://guest:[email protected]:5672//")#调度任务格式为pacakage.class#func result = app.signature("cn.main.celery.TestTask#sum", [1, 2]).delay().get()print("result is %s" % result)

The running test.py program responds as follows:

C:\ProgramData\Anaconda3\python.exe D:/Test/python/celerys/javatest.pyresult is 3Process finished with exit code 0

19:06:43.685 INFO  [pool-1-thread-1] c.g.c.CeleryWorkerCore:126 - CeleryTask cn.main.celery.TestTask#sum[2c1476a0-0d64-47c8-afce-6ddc99915ea9] succeeded in 338.9 μs

Reference Links:

Https://bitbucket.org/geneea/celery-java

Using a Java program as a working node for celery