LanguageExtender.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.language.extender.internal;

import com.liferay.osgi.felix.util.AbstractExtender;

import java.util.List;

import org.apache.felix.utils.extender.Extension;
import org.apache.felix.utils.log.Logger;

import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.wiring.BundleCapability;
import org.osgi.framework.wiring.BundleWiring;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Deactivate;

/**
 * @author Carlos Sierra Andrés
 */
@Component(immediate = true)
public class LanguageExtender extends AbstractExtender {

	@Activate
	protected void activate(BundleContext bundleContext) throws Exception {
		_logger = new Logger(bundleContext);

		start(bundleContext);
	}

	@Deactivate
	protected void deactivate(BundleContext bundleContext) throws Exception {
		stop(bundleContext);
	}

	@Override
	protected void debug(Bundle bundle, String s) {
		_logger.log(Logger.LOG_DEBUG, "[" + bundle + "] " + s);
	}

	@Override
	protected Extension doCreateExtension(Bundle bundle) throws Exception {
		BundleWiring bundleWiring = bundle.adapt(BundleWiring.class);

		List<BundleCapability> bundleCapabilities =
			bundleWiring.getCapabilities("liferay.resource.bundle");

		if (bundleCapabilities == null) {
			return null;
		}

		return new LanguageExtension(
			getBundleContext(), bundle, bundleCapabilities, _logger);
	}

	@Override
	protected void error(String s, Throwable throwable) {
		_logger.log(Logger.LOG_ERROR, s, throwable);
	}

	@Override
	protected void warn(Bundle bundle, String s, Throwable throwable) {
		_logger.log(Logger.LOG_WARNING, "[" + bundle + "] " + s);
	}

	private Logger _logger;

}