org.romaframework.aspect.view.html.transformer.jsp.JspTemplateManager.java Source code

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Here is the source code for org.romaframework.aspect.view.html.transformer.jsp.JspTemplateManager.java

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/*
 * Copyright 2011 Luigi Dell'Aquila (luigi.dellaquila--at--assetdata.it)
 *
 * 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 org.romaframework.aspect.view.html.transformer.jsp;

import java.io.IOException;
import java.io.Writer;

import javax.servlet.ServletException;
import javax.servlet.ServletRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.romaframework.aspect.view.html.HtmlViewAspectHelper;
import org.romaframework.aspect.view.html.area.HtmlViewRenderable;
import org.romaframework.aspect.view.html.constants.RequestConstants;
import org.romaframework.aspect.view.html.template.ViewTemplateManager;

public class JspTemplateManager implements ViewTemplateManager {

    private String templatesPath = "/WEB-INF/transformers/jsp/";
    protected Log log = LogFactory.getLog(getClass());

    protected boolean cacheTemplates = true;

    public String getTemplatesPath() {
        return templatesPath;
    }

    public void setTemplatesPath(String templatesPath) {
        this.templatesPath = templatesPath;
    }

    public boolean isCacheTemplates() {
        return false;
    }

    public void setCacheTemplates(boolean cacheTemplates) {
    }

    public void execute(String templateName, HtmlViewRenderable renderable, String part, Writer writer) {
        ServletRequest request = HtmlViewAspectHelper.getServletRequest();
        final String classJsp = getTemplatesPath() + templateName;
        final Object previousComponent = request.getAttribute(RequestConstants.CURRENT_COMPONENT_IN_TRANSFORMER);
        request.setAttribute(RequestConstants.CURRENT_COMPONENT_IN_TRANSFORMER, renderable);
        final Object previousPart = request.getAttribute(RequestConstants.CURRENT_COMPONENT_PART_IN_TRANSFORMER);
        request.setAttribute(RequestConstants.CURRENT_COMPONENT_PART_IN_TRANSFORMER, part);
        try {
            HtmlViewAspectHelper.getHtmlFromJSP(request, classJsp, writer);
        } catch (ServletException e) {
            log.error("error in jsp transformer", e.getRootCause() == null ? e : e.getRootCause());
        } catch (IOException e) {
            log.error("maybe wrong render defined", e);
        }
        request.setAttribute(RequestConstants.CURRENT_COMPONENT_IN_TRANSFORMER, previousComponent);
        request.setAttribute(RequestConstants.CURRENT_COMPONENT_PART_IN_TRANSFORMER, previousPart);
    }

}