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• 2.0
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• ServiceLookup.java

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com.levigo.jbig2.util.ServiceLookup Maven / Gradle / Ivy

/**
 * Copyright (C) 1995-2015 levigo holding gmbh.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */

package com.levigo.jbig2.util;

import java.util.Iterator;
import java.util.ServiceLoader;

public class ServiceLookup {

  public Iterator getServices(Class cls) {
    return getServices(cls, null);
  }

  public Iterator getServices(Class cls, ClassLoader clsLoader) {
    Iterator services = ServiceLoader.load(cls).iterator();

    if (!services.hasNext()) {
      services = ServiceLoader.load(cls, cls.getClass().getClassLoader()).iterator();
    }

    if (!services.hasNext() && clsLoader != null) {
      services = ServiceLoader.load(cls, clsLoader).iterator();
    }

    return services;
  }

}