SearchFacetTracker.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.search.web.facet.util;

import com.liferay.portal.search.web.facet.SearchFacet;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.component.annotations.ReferenceCardinality;
import org.osgi.service.component.annotations.ReferencePolicy;
import org.osgi.service.component.annotations.ReferencePolicyOption;

/**
 * @author Eudaldo Alonso
 */
@Component(immediate = true, service = SearchFacetTracker.class)
public class SearchFacetTracker {

	public static List<SearchFacet> getSearchFacets() {
		return _searchFacets;
	}

	@Reference(
		cardinality = ReferenceCardinality.MULTIPLE,
		policy = ReferencePolicy.DYNAMIC,
		policyOption = ReferencePolicyOption.GREEDY,
		unbind = "removeSearchFacet"
	)
	protected void addSearchFacet(SearchFacet searchFacet) {
		_searchFacets.add(searchFacet);
	}

	protected void removeSearchFacet(SearchFacet searchFacet) {
		_searchFacets.remove(searchFacet);
	}

	private static final List<SearchFacet> _searchFacets =
		new CopyOnWriteArrayList<>();

}