com.liferay.portal.kernel.bean.PortalBeanLocatorUtil.java Source code

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Here is the source code for com.liferay.portal.kernel.bean.PortalBeanLocatorUtil.java

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/**
 * 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.kernel.bean;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;

import java.util.Map;

/**
 * @author Brian Wing Shun Chan
 * @author Miguel Pastor
 * @author Raymond Aug
 */
public class PortalBeanLocatorUtil {

    public static BeanLocator getBeanLocator() {
        return _beanLocator;
    }

    public static <T> Map<String, T> locate(Class<T> clazz) {
        BeanLocator beanLocator = getBeanLocator();

        if (beanLocator == null) {
            _log.error("BeanLocator is null");

            throw new BeanLocatorException("BeanLocator is not set");
        }

        Thread currentThread = Thread.currentThread();

        ClassLoader contextClassLoader = currentThread.getContextClassLoader();

        ClassLoader beanClassLoader = beanLocator.getClassLoader();

        try {
            if (contextClassLoader != beanClassLoader) {
                currentThread.setContextClassLoader(beanClassLoader);
            }

            return beanLocator.locate(clazz);
        } finally {
            if (contextClassLoader != beanClassLoader) {
                currentThread.setContextClassLoader(contextClassLoader);
            }
        }
    }

    public static Object locate(String name) {
        BeanLocator beanLocator = getBeanLocator();

        if (beanLocator == null) {
            _log.error("BeanLocator is null");

            throw new BeanLocatorException("BeanLocator is not set");
        }

        Thread currentThread = Thread.currentThread();

        ClassLoader contextClassLoader = currentThread.getContextClassLoader();

        ClassLoader beanClassLoader = beanLocator.getClassLoader();

        try {
            if (contextClassLoader != beanClassLoader) {
                currentThread.setContextClassLoader(beanClassLoader);
            }

            return beanLocator.locate(name);
        } finally {
            if (contextClassLoader != beanClassLoader) {
                currentThread.setContextClassLoader(contextClassLoader);
            }
        }
    }

    public static void reset() {
        setBeanLocator(null);
    }

    public static void setBeanLocator(BeanLocator beanLocator) {
        if (_log.isDebugEnabled()) {
            if (beanLocator == null) {
                _log.debug("Setting BeanLocator " + beanLocator);
            } else {
                _log.debug("Setting BeanLocator " + beanLocator.hashCode());
            }
        }

        _beanLocator = beanLocator;
    }

    private static final Log _log = LogFactoryUtil.getLog(PortalBeanLocatorUtil.class);

    private static BeanLocator _beanLocator;

}