gallery.web.controller.cms.CacheControlCms.java Source code

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Here is the source code for gallery.web.controller.cms.CacheControlCms.java

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/*
 *  Copyright 2010 demchuck.dima@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 gallery.web.controller.cms;

import common.cms.ICmsConfig;
import core.service.IRubricImageService;
import gallery.service.pages.IRubricationService;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.Ehcache;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

/**
 *
 * @author demchuck.dima@gmail.com
 */
public class CacheControlCms implements Controller {
    public static final String DO_PARAM = "do";
    public static final String PARAM_RUBRICATOR_CLEAR = "clear_rubricator";
    public static final String PARAM_RUBRICATOR_REFRESH = "refresh_rubricator";
    public static final String PARAM_RUBRICATOR_IMAGE_CLEAR = "clear_rub_img";
    public static final String PARAM_RUBRICATOR_IMAGE_REFRESH = "refresh_rub_img";
    public static final String PARAM_REGION_CLEAR = "region_clear";

    public static final String PARAM_REGION_NAME = "name";

    protected IRubricationService rubrication_service;
    protected IRubricImageService rubric_image_service;

    protected CacheManager cacheManager;

    protected ICmsConfig config;
    protected String content_url;
    protected String navigation_url;

    public void init() {
        StringBuilder sb = new StringBuilder();
        common.utils.MiscUtils.checkNotNull(rubrication_service, "rubrication_service", sb);
        common.utils.MiscUtils.checkNotNull(rubric_image_service, "rubric_image_service", sb);
        common.utils.MiscUtils.checkNotNull(cacheManager, "cacheManager", sb);
        common.utils.MiscUtils.checkNotNull(config, "config", sb);
        common.utils.MiscUtils.checkNotNull(content_url, "content_url", sb);
        common.utils.MiscUtils.checkNotNull(navigation_url, "navigation_url", sb);
        if (sb.length() > 0) {
            throw new NullPointerException(sb.toString());
        }
    }

    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
        //TODO: remake
        String do_param = request.getParameter(DO_PARAM);
        if (PARAM_RUBRICATOR_CLEAR.equals(do_param)) {
            rubrication_service.clearCache();
            common.CommonAttributes.addHelpMessage("operation_succeed", request);
        } else if (PARAM_RUBRICATOR_REFRESH.equals(do_param)) {
            rubrication_service.refreshCache();
            common.CommonAttributes.addHelpMessage("operation_succeed", request);
        } else if (PARAM_RUBRICATOR_IMAGE_CLEAR.equals(do_param)) {
            if (rubric_image_service.clearImages(null)) {
                common.CommonAttributes.addHelpMessage("operation_succeed", request);
            } else {
                common.CommonAttributes.addErrorMessage("operation_fail", request);
            }
        } else if (PARAM_RUBRICATOR_IMAGE_REFRESH.equals(do_param)) {
            if (rubric_image_service.refreshImages(null)) {
                common.CommonAttributes.addHelpMessage("operation_succeed", request);
            } else {
                common.CommonAttributes.addErrorMessage("operation_fail", request);
            }
        }
        if (PARAM_REGION_CLEAR.equals(do_param)) {
            String[] names = request.getParameterValues(PARAM_REGION_NAME);
            Map<String, Boolean> result = new HashMap<String, Boolean>();
            for (String name : names) {
                if (name != null) {
                    Ehcache cache = cacheManager.getEhcache(name);
                    if (cache == null) {
                        result.put(name, Boolean.FALSE);
                        common.CommonAttributes.addErrorMessage("operation_fail", request);
                    } else {
                        result.put(name, Boolean.TRUE);
                        cache.removeAll();
                        common.CommonAttributes.addHelpMessage("operation_succeed", request);
                    }
                }
            }
            request.setAttribute(config.getContentDataAttribute(), result);
        }
        request.setAttribute(config.getContentUrlAttribute(), content_url);
        request.setAttribute(config.getNavigationUrlAttribute(), navigation_url);

        request.setAttribute("title", " ");
        request.setAttribute("top_header", " ");

        return new ModelAndView(config.getTemplateUrl());
    }

    public void setRubrication_service(IRubricationService value) {
        this.rubrication_service = value;
    }

    public void setRubric_image_service(IRubricImageService value) {
        this.rubric_image_service = value;
    }

    public void setCacheManager(CacheManager value) {
        this.cacheManager = value;
    }

    public void setConfig(ICmsConfig value) {
        this.config = value;
    }

    public void setContentUrl(String value) {
        this.content_url = value;
    }

    public void setNavigationUrl(String value) {
        this.navigation_url = value;
    }

}