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package gr.uoa.di.driver.util;
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import eu.dnetlib.api.DriverService;
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public class FallBackServiceLocator<S extends DriverService>
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implements ServiceLocator<S> {
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private ServiceLocator<S> mainLocator = null;
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private ServiceLocator<S> fallBackLocator = null;
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@Override
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public S getService() {
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S service = null;
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if (mainLocator != null)
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service = mainLocator.getService();
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if (service == null && fallBackLocator != null)
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service = fallBackLocator.getService();
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return service;
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}
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public FallBackServiceLocator(ServiceLocator<S> mainLocator,
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ServiceLocator<S> fallBackLocator) {
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this.mainLocator = mainLocator;
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this.fallBackLocator = fallBackLocator;
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}
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public void setMainLocator(ServiceLocator<S> mainLocator) {
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this.mainLocator = mainLocator;
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}
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public void setFallBackLocator(ServiceLocator<S> fallBackLocator) {
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this.fallBackLocator = fallBackLocator;
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}
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}
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