io.tracee.contextlogger.utility.GenericServiceLocator Maven / Gradle / Ivy

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Please refer to https://github.com/tracee/contextlogger.

There is a newer version: 0.11.0

package io.tracee.contextlogger.utility;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ServiceLoader;

/**
 * A generic service locator.
 */
public class GenericServiceLocator {

    private GenericServiceLocator() {
    }

    public static  T locate(final Class clazz) {
        final List services = locateAll(clazz);
        return services.isEmpty() ? (T)null : (T)services.get(0);
    }

    public static  List locateAll(final Class clazz) {

        final Iterator iterator = ServiceLoader.load(clazz).iterator();
        final List services = new ArrayList();

        while (iterator.hasNext()) {
            try {
                services.add(iterator.next());
            }
            catch (Error e) {
                e.printStackTrace(System.err);
            }
        }

        return services;

    }

}