| /* |
| * 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.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.models.spi.ViaProvider; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public abstract class AbstractResourceTypeViaProvider implements ViaProvider { |
| |
| protected final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Override |
| public Object getAdaptable(Object original, String value) { |
| if (!handle(value)) { |
| return ORIGINAL; |
| } |
| if (original instanceof Resource) { |
| final Resource resource = (Resource) original; |
| final String resourceType = getResourceType(resource, value); |
| if (resourceType == null) { |
| log.warn("Could not determine forced resource type for {} using via value {}.", resource, value); |
| return null; |
| } |
| return new ResourceTypeForcingResourceWrapper(resource, resourceType); |
| } else if (original instanceof SlingHttpServletRequest) { |
| final SlingHttpServletRequest request = (SlingHttpServletRequest) original; |
| final Resource resource = request.getResource(); |
| if (resource == null) { |
| return null; |
| } |
| final String resourceType = getResourceType(resource, value); |
| if (resourceType == null) { |
| log.warn("Could not determine forced resource type for {} using via value {}.", resource, value); |
| return null; |
| } |
| return new ResourceTypeForcingRequestWrapper(request, resource, resourceType); |
| } else { |
| log.warn("Received unexpected adaptable of type {}.", original.getClass().getName()); |
| return null; |
| } |
| } |
| |
| protected abstract boolean handle(@NotNull String value); |
| |
| protected abstract @Nullable String getResourceType(@NotNull Resource resource, @NotNull String value); |
| |
| } |