TestGroupListener.java

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package com.griddynamics.jagger.engine.e1.collector.testgroup;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;

public abstract class TestGroupListener {

    public void onStart(TestGroupInfo infoStart){
    }

    public void onStop(TestGroupInfo infoStop){
    }

    public static class Composer extends TestGroupListener{
        private static Logger log = LoggerFactory.getLogger(Composer.class);

        private List<TestGroupListener> listenerList;

        private Composer(List<TestGroupListener> listenerList){
            this.listenerList = listenerList;
        }

        @Override
        public void onStart(TestGroupInfo testGroupInfo) {
            for (TestGroupListener listener : listenerList){
                try{
                    listener.onStart(testGroupInfo);
                }catch (RuntimeException ex){
                    log.error("Failed to call on start in {} test-group-listener", listener.toString(), ex);
                }
            }
        }

        @Override
        public void onStop(TestGroupInfo testGroupInfo) {
            for (TestGroupListener listener : listenerList){
                try{
                    listener.onStop(testGroupInfo);
                }catch (RuntimeException ex){
                    log.error("Failed to call on stop in {} test-group-listener", listener.toString(), ex);
                }
            }
        }

        public static TestGroupListener compose(List<TestGroupListener> listeners){
            return new Composer(listeners);
        }
    }
}