DefaultKBArticleSelectorFactory.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.knowledge.base.web.internal.selector;

import com.liferay.osgi.service.tracker.collections.map.ServiceTrackerMap;
import com.liferay.osgi.service.tracker.collections.map.ServiceTrackerMapFactory;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.model.ClassName;
import com.liferay.portal.kernel.service.ClassNameLocalService;

import org.osgi.framework.BundleContext;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Deactivate;
import org.osgi.service.component.annotations.Reference;

/**
 * @author Adolfo Pérez
 */
@Component(immediate = true, service = KBArticleSelectorFactory.class)
public class DefaultKBArticleSelectorFactory
	implements KBArticleSelectorFactory {

	@Override
	public KBArticleSelector getKBArticleSelector(long classNameId)
		throws PortalException {

		ClassName className = _classNameLocalService.getClassName(classNameId);

		return _serviceTrackerMap.getService(className.getClassName());
	}

	@Activate
	protected void activate(BundleContext bundleContext) {
		_serviceTrackerMap = ServiceTrackerMapFactory.openSingleValueMap(
			bundleContext, KBArticleSelector.class, "model.class.name");
	}

	@Deactivate
	protected void deactivate() {
		_serviceTrackerMap.close();
	}

	@Reference(unbind = "-")
	protected void setClassNameLocalService(
		ClassNameLocalService classNameLocalService) {

		_classNameLocalService = classNameLocalService;
	}

	private ClassNameLocalService _classNameLocalService;
	private ServiceTrackerMap<String, KBArticleSelector> _serviceTrackerMap;

}