| /* |
| * Copyright 2004-2005 the original author or authors. |
| * |
| * 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.codehaus.groovy.grails.web.sitemesh; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import javax.servlet.http.HttpServletRequest; |
| |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import com.opensymphony.module.sitemesh.Config; |
| import com.opensymphony.module.sitemesh.Decorator; |
| import com.opensymphony.module.sitemesh.DecoratorMapper; |
| import com.opensymphony.module.sitemesh.Page; |
| import com.opensymphony.module.sitemesh.mapper.AbstractDecoratorMapper; |
| import com.opensymphony.module.sitemesh.mapper.DefaultDecorator; |
| /** |
| * Implements the SiteMesh decorator mapper interface and allows grails views to map to grails layouts |
| * |
| * @author Graeme Rocher |
| * @since Oct 10, 2005 |
| */ |
| public class GrailsLayoutDecoratorMapper extends AbstractDecoratorMapper implements DecoratorMapper { |
| |
| private static final String DEFAULT_DECORATOR_PATH = "/WEB-INF/jsp/layouts"; |
| private static final String DEFAULT_VIEW_TYPE = ".jsp"; |
| |
| private static final Log LOG = LogFactory.getLog( GrailsLayoutDecoratorMapper.class ); |
| |
| |
| private Map decoratorMap = new HashMap(); |
| |
| public void init(Config config, Properties properties, DecoratorMapper parent) throws InstantiationException { |
| super.init(config,properties,parent); |
| } |
| |
| public Decorator getDecorator(HttpServletRequest request, Page page) { |
| String layoutName = page.getProperty("meta.layout"); |
| if(StringUtils.isBlank(layoutName)) |
| return super.getDecorator(request, page); |
| |
| return getNamedDecorator(request, layoutName); |
| } |
| |
| public Decorator getNamedDecorator(HttpServletRequest request, String name) { |
| |
| if(decoratorMap.containsKey(name)) { |
| return (Decorator)decoratorMap.get(name); |
| } |
| else { |
| String decoratorName = name; |
| if(!name.matches("(.+)(\\.)(\\w{2}|\\w{3})")) { |
| name += DEFAULT_VIEW_TYPE; |
| } |
| String decoratorPage = DEFAULT_DECORATOR_PATH + '/' + name; |
| |
| if(LOG.isInfoEnabled()) |
| LOG.info("Using decorator " + decoratorPage); |
| |
| Decorator d = new DefaultDecorator(decoratorName,decoratorPage, Collections.EMPTY_MAP); |
| decoratorMap.put(decoratorName,d); |
| return d; |
| } |
| } |
| |
| } |