AppResolverHookFactory.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.portal.app.license.resolver;

import com.liferay.portal.app.license.AppLicenseVerifier;

import java.util.Collection;

import org.osgi.framework.BundleContext;
import org.osgi.framework.hooks.resolver.ResolverHook;
import org.osgi.framework.hooks.resolver.ResolverHookFactory;
import org.osgi.framework.wiring.BundleRevision;
import org.osgi.util.tracker.ServiceTracker;

/**
 * @author Amos Fong
 */
public class AppResolverHookFactory implements ResolverHookFactory {

	public AppResolverHookFactory(BundleContext bundleContext) {
		_serviceTracker = new ServiceTracker<>(
			bundleContext, AppLicenseVerifier.class, null);

		_serviceTracker.open();
	}

	@Override
	public ResolverHook begin(Collection<BundleRevision> triggers) {
		return new AppResolverHook(_serviceTracker);
	}

	public void close() {
		_serviceTracker.close();
	}

	private final ServiceTracker<AppLicenseVerifier, AppLicenseVerifier>
		_serviceTracker;

}