com.liferay.docs.springmvc.PortletViewController.java Source code

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Here is the source code for com.liferay.docs.springmvc.PortletViewController.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.docs.springmvc;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;

import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.FrameworkUtil;
import org.osgi.util.tracker.ServiceTracker;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.portlet.bind.annotation.RenderMapping;

import com.liferay.portal.kernel.service.UserLocalService;
import com.liferay.portal.kernel.util.ReleaseInfo;

@Controller
@RequestMapping("VIEW")
public class PortletViewController {

    @PostConstruct
    public void init() {

        Bundle bundle = FrameworkUtil.getBundle(this.getClass());
        BundleContext bundleContext = bundle.getBundleContext();
        serviceTracker = new ServiceTracker<>(bundleContext, UserLocalService.class, null);
        serviceTracker.open();
    }

    @PreDestroy
    public void destroy() {

        serviceTracker.close();
        System.out.println("DESTROY");
    }

    @RenderMapping
    public String question(Model model) {
        model.addAttribute("releaseInfo", ReleaseInfo.getReleaseInfo());

        // Test a service tracker
        if (!serviceTracker.isEmpty()) {

            UserLocalService userLocalService = (UserLocalService) serviceTracker.getService();
            int count = userLocalService.getUsersCount();
            System.out.println(count);
        }
        return "test-springmvc-portlet/view";
    }

    ServiceTracker<?, ?> serviceTracker;
}