com.gwos.server.services.AppsServiceImpl.java Source code

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/*
 * Copyright 2013 - Elian ORIOU <elian.oriou@gmail.com>
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.gwos.server.services;

import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import com.gwos.client.domain.impl.StatObject;
import com.gwos.client.domain.impl.User;
import com.gwos.client.services.AppsService;
import com.gwos.server.services.utils.ServiceUtils;
import org.apache.commons.io.FileUtils;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import java.io.File;
import java.util.HashMap;
import java.util.Map;

public class AppsServiceImpl extends RemoteServiceServlet implements AppsService {

    private static final long serialVersionUID = -535881530441219366L;
    private ServletConfig config;

    // //////////////////////////
    // // 0. WEB.XML PARAMETERS
    // //////////////////////////

    @Override
    public void init(ServletConfig config) throws ServletException {
        this.config = config;
    }

    @Override
    public ServletContext getServletContext() {
        if (config == null) {
            return null;
        }
        return config.getServletContext();
    }

    // //////////////////////////
    // // 1. STATS
    // //////////////////////////

    @Override
    public StatObject getMemoryStats() {
        StatObject stats = new StatObject();

        // The FS root dir
        File rootDir = new File(new ServiceUtils(getServletContext()).getFSPath());
        stats.fileSystemTotalSpace = FileUtils.sizeOfDirectory(rootDir);

        // Call the service
        SessionServiceImpl service = new SessionServiceImpl();
        try {
            service.init(this.config);
        } catch (ServletException e) {
            e.printStackTrace();
        }

        // Memory for each of app users
        Map<User, Long> memoryUsages = new HashMap<User, Long>();
        stats.memoryUsages = memoryUsages;
        for (User user : service.getAllUsers()) {
            File userDir = new File(rootDir.getAbsolutePath() + File.separator + user.getUsername());
            if (userDir.exists() == false) {
                continue;
            }
            memoryUsages.put(user, FileUtils.sizeOfDirectory(userDir));
        }

        return stats;
    }
}