| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.sling.models.impl.via; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.wrappers.SlingHttpServletRequestWrapper; |
| import org.apache.sling.models.annotations.ViaProviderType; |
| import org.apache.sling.models.annotations.via.ChildResource; |
| import org.apache.sling.models.spi.ViaProvider; |
| import org.osgi.service.component.annotations.Component; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @Component(service=ViaProvider.class) |
| public class ChildResourceViaProvider implements ViaProvider { |
| |
| private static final Logger log = LoggerFactory.getLogger(ChildResourceViaProvider.class); |
| |
| @Override |
| public Class<? extends ViaProviderType> getType() { |
| return ChildResource.class; |
| } |
| |
| @Override |
| public Object getAdaptable(Object original, String value) { |
| if (StringUtils.isBlank(value)) { |
| return ORIGINAL; |
| } |
| if (original instanceof Resource) { |
| return ((Resource) original).getChild(value); |
| } else if (original instanceof SlingHttpServletRequest) { |
| final SlingHttpServletRequest request = (SlingHttpServletRequest) original; |
| final Resource resource = request.getResource(); |
| if (resource == null) { |
| return null; |
| } |
| Resource child = resource.getChild(value); |
| if (child == null) { |
| log.debug("Could not obtain child {} of resource {}", value, resource.getPath()); |
| return null; |
| } |
| return new ChildResourceRequestWrapper(request, child); |
| } else { |
| log.warn("Received unexpected adaptable of type {}.", original.getClass().getName()); |
| return null; |
| } |
| } |
| |
| private class ChildResourceRequestWrapper extends SlingHttpServletRequestWrapper { |
| |
| private final Resource resource; |
| |
| private ChildResourceRequestWrapper(SlingHttpServletRequest request, Resource resource) { |
| super(request); |
| this.resource = resource; |
| } |
| |
| @Override |
| public Resource getResource() { |
| return resource; |
| } |
| } |
| } |