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package @java_package@;

import java.util.List;
import java.util.ArrayList;

public class BackendControllerFactory {

    private static BackendControllerFactory singleton = null;


    public static BackendControllerFactory getInstance() {
        if ( null != singleton ) return singleton;
        synchronized ( BackendControllerFactory.class.getName()) {
            if ( null != singleton ) return singleton;
            singleton = new BackendControllerFactory();
        }
        return singleton;
    }

    public List pipelines = new ArrayList<>();

    public void register(AbstractBackendController pipeline) {
        pipelines.add(pipeline);
    }

    public int deregister(String name) {
        for ( AbstractBackendController pipeline: pipelines) {
            if  ( name.equals( pipeline.getName() ) ) {
                pipelines.remove(pipeline);
                return 1;
            }
        }
        return 0;
    }

}