com.bbc.remarc.servlet.ResourceServletContextListener.java Source code

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Here is the source code for com.bbc.remarc.servlet.ResourceServletContextListener.java

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/*
 * Copyright (C) 2016 BBC
 *
 * 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.bbc.remarc.servlet;

import java.io.File;
import java.io.IOException;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import org.apache.commons.io.FileUtils;
import org.apache.log4j.Logger;

import com.bbc.remarc.util.Configuration;

/**
 * Servlet context listener to create a directory on the web server containing
 * sample resources (images, audio, video) - will be replaced when admin/file
 * upload is complete
 * 
 * @author a170632
 *
 */
public class ResourceServletContextListener implements ServletContextListener {

    private final static Logger log = Logger.getLogger(ResourceServletContextListener.class);

    @Override
    public void contextInitialized(ServletContextEvent event) {
        log.debug("contextInitialized");

        String resourcesPath = System.getenv(Configuration.ENV_DATA_DIR_OPENSHIFT);

        if (resourcesPath == null || "".equals(resourcesPath)) {
            log.info("Not running on OpenShift. Falling back to local resource path");

            resourcesPath = System.getenv(Configuration.ENV_DATA_DIR_LOCAL);
        }

        createResourceFolders(resourcesPath);

        event.getServletContext().setAttribute(Configuration.ATT_DATA_DIR, resourcesPath);
    }

    @Override
    public void contextDestroyed(ServletContextEvent arg0) {
        log.debug("contextDestroyed");

    }

    private void createResourceFolders(String resourcesPath) {

        log.debug("checking resource internal folders...");

        File audioDir = new File(resourcesPath + Configuration.CONTENT_DIR + Configuration.AUDIO_DIR_NAME);
        File imagesDir = new File(resourcesPath + Configuration.CONTENT_DIR + Configuration.IMAGE_DIR_NAME);
        File videoDir = new File(resourcesPath + Configuration.CONTENT_DIR + Configuration.VIDEO_DIR_NAME);
        File uploadDir = new File(resourcesPath + Configuration.UPLOAD_DIR_NAME);

        try {

            // create the audio, images, video and upload folders
            if (!audioDir.exists()) {
                FileUtils.forceMkdir(audioDir);
                log.debug("audio folder created");
            }
            ;

            if (!imagesDir.exists()) {
                FileUtils.forceMkdir(imagesDir);
                log.debug("images folder created");
            }
            ;

            if (!videoDir.exists()) {
                FileUtils.forceMkdir(videoDir);
                log.debug("video folder created");
            }
            ;

            if (!uploadDir.exists()) {
                FileUtils.forceMkdir(uploadDir);
                log.debug("upload folder created");
            }
            ;

        } catch (IOException e) {
            log.error("Error creating resources content folders, may lead to unexpected behaviour: " + e);
        }
    }

}