CheckValidWidgetTag.java

/*
 * Copyright 2015-Present Entando Inc. (http://www.entando.com) All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.agiletec.plugins.jpmyportalplus.aps.tags;

import java.util.Set;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.agiletec.aps.system.RequestContext;
import com.agiletec.aps.system.SystemConstants;
import com.agiletec.aps.system.services.page.Widget;
import com.agiletec.aps.util.ApsWebApplicationUtils;
import com.agiletec.plugins.jpmyportalplus.aps.system.JpmyportalplusSystemConstants;
import com.agiletec.plugins.jpmyportalplus.aps.system.services.config.IMyPortalConfigManager;

/**
 * Toggle the visibility of the elements contained in body tag,
 * depending on the presents of showlet type into the allowed types of MyPortal Service.
 * Is possible to insert the result of the check in a variable placed in the page context.
 * @author E.Santoboni
 */
public class CheckValidWidgetTag extends TagSupport {

	private static final Logger _logger = LoggerFactory.getLogger(CheckValidWidgetTag.class);
	
	@Override
	public int doStartTag() throws JspException {
		IMyPortalConfigManager myPortalConfigManager = (IMyPortalConfigManager) ApsWebApplicationUtils.getBean(JpmyportalplusSystemConstants.MYPORTAL_CONFIG_MANAGER, pageContext);
		HttpServletRequest req =  (HttpServletRequest) this.pageContext.getRequest();
		try {
			boolean check = false;
			RequestContext reqCtx = (RequestContext) req.getAttribute(RequestContext.REQCTX);
			Widget currentShowlet = (Widget) reqCtx.getExtraParam(SystemConstants.EXTRAPAR_CURRENT_WIDGET);
			if (null != currentShowlet && null != currentShowlet.getType()) {
				String typeCode = currentShowlet.getType().getCode();
				Set<String> showletTypeCodes = myPortalConfigManager.getConfig().getAllowedShowlets();
				check = showletTypeCodes.contains(typeCode);
			}
			if (null != this.getVar()) {
				this.pageContext.setAttribute(this.getVar(), new Boolean(check));
			}
			if (check) {
				return EVAL_BODY_INCLUDE;
			} else {
				return SKIP_BODY;
			}
		} catch (Throwable t) {
			_logger.error("error in doStartTag", t);
			throw new JspException("Error on doStartTag", t);
		}
	}

	public String getVar() {
		return _var;
	}
	public void setVar(String var) {
		this._var = var;
	}

	private String _var;

}