org.tinygroup.springmvc.view.TinyTemplateLayoutView.java Source code

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Here is the source code for org.tinygroup.springmvc.view.TinyTemplateLayoutView.java

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/**
 *  Copyright (c) 1997-2013, www.tinygroup.org (luo_guo@icloud.com).
 *
 *  Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
 *
 *  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 org.tinygroup.springmvc.view;

import org.apache.commons.lang.StringUtils;
import org.springframework.web.servlet.view.AbstractTemplateView;
import org.tinygroup.logger.LogLevel;
import org.tinygroup.logger.Logger;
import org.tinygroup.logger.LoggerFactory;
import org.tinygroup.springmvc.support.TinyWebTemplateContext;
import org.tinygroup.template.TemplateContext;
import org.tinygroup.template.TemplateEngine;
import org.tinygroup.weblayer.webcontext.util.WebContextUtil;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.util.Locale;
import java.util.Map;

/**
 * tiny?view
 * 
 * @author renhui
 * 
 */
public class TinyTemplateLayoutView extends AbstractTemplateView {

    private TemplateEngine templateEngine;

    private static final String VIEW_EXT_FILENAME = "page";// ??

    private static final String PAGELET_EXT_FILE_NAME = "pagelet";

    private String viewExtFileName = VIEW_EXT_FILENAME;

    private String noLayoutExtFileName = PAGELET_EXT_FILE_NAME;

    private static final Logger logger = LoggerFactory.getLogger(TinyTemplateLayoutView.class);

    public TemplateEngine getTemplateEngine() {
        return templateEngine;
    }

    public void setTemplateEngine(TemplateEngine templateEngine) {
        this.templateEngine = templateEngine;
    }

    public void setViewExtFileName(String viewExtFileName) {
        this.viewExtFileName = viewExtFileName;
    }

    public void setNoLayoutExtFileName(String noLayoutExtFileName) {
        this.noLayoutExtFileName = noLayoutExtFileName;
    }

    @Override
    protected void renderMergedTemplateModel(Map<String, Object> model, HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        long startTime = System.currentTimeMillis();
        response.setContentType(getContentType());
        model.put("uiengine", getApplicationContext().getBean("uiComponentManager"));
        TemplateContext templateContext = new TinyWebTemplateContext(model, WebContextUtil.getWebContext(request));
        String path = getUrl();
        String extFileName = getExtFileName(path);
        if (isPagelet(path)) {
            templateEngine.renderTemplateWithOutLayout(extFileName, templateContext, response.getOutputStream());
        } else {
            templateEngine.renderTemplate(extFileName, templateContext, response.getOutputStream());
        }
        logger.logMessage(LogLevel.DEBUG, "<{}>?{}ms", path,
                System.currentTimeMillis() - startTime);

    }

    public boolean checkResource(Locale locale) throws Exception {
        String path = getExtFileName(getUrl());
        try {
            templateEngine.findTemplate(path);
            return true;
        } catch (Exception e) {
            logger.logMessage(LogLevel.DEBUG, "Could not load tiny template for URL [{0}]", path);
        }
        return false;
    }

    private boolean isPagelet(String path) {
        return StringUtils.endsWith(path, noLayoutExtFileName);
    }

    private String getExtFileName(String path) {
        if (isPagelet(path)) {
            return StringUtils.substringBeforeLast(path, noLayoutExtFileName) + viewExtFileName;
        }
        return path;
    }

    // ??
    @Override
    protected void applyContentType(HttpServletResponse response) {

    }

}