| /* |
| * 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.injectors; |
| |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.adapter.Adaptable; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.resource.ResourceResolver; |
| import org.apache.sling.api.resource.ValueMap; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Abstract base class for injectors to consolidate common functionality. |
| */ |
| abstract class AbstractInjector { |
| |
| protected ResourceResolver getResourceResolver(Object adaptable) { |
| ResourceResolver resolver = null; |
| if (adaptable instanceof Resource) { |
| resolver = ((Resource) adaptable).getResourceResolver(); |
| } else if (adaptable instanceof SlingHttpServletRequest) { |
| resolver = ((SlingHttpServletRequest) adaptable).getResourceResolver(); |
| } |
| return resolver; |
| } |
| |
| /** |
| * Retrieve the ValueMap from the given adaptable. This succeeds, if the adaptable is either |
| * <ul> |
| * <li>a {@link ValueMap},</li> |
| * <li>a {@link SlingHttpServletRequest}, in which case the returned {@link ValueMap} is the one derived from the request's resource or</li> |
| * <li>adaptable to a {@link ValueMap}.</li> |
| * </ul> |
| * Otherwise {@code null} is returned. |
| * @param adaptable |
| * @return a ValueMap or {@code null}. |
| */ |
| protected @Nullable ValueMap getValueMap(Object adaptable) { |
| if (adaptable instanceof ValueMap) { |
| return (ValueMap) adaptable; |
| } else if (adaptable instanceof SlingHttpServletRequest) { |
| final Resource resource = ((SlingHttpServletRequest)adaptable).getResource(); |
| // resource may be null for mocked adaptables, therefore do a check here |
| if (resource != null) { |
| return resource.adaptTo(ValueMap.class); |
| } else { |
| return null; |
| } |
| } else if (adaptable instanceof Adaptable) { |
| return ((Adaptable) adaptable).adaptTo(ValueMap.class); |
| } else { |
| return null; |
| } |
| } |
| |
| protected boolean isDeclaredTypeCollection(Type declaredType) { |
| boolean isCollection = false; |
| if (declaredType instanceof ParameterizedType) { |
| ParameterizedType type = (ParameterizedType) declaredType; |
| Class<?> collectionType = (Class<?>) type.getRawType(); |
| isCollection = collectionType.equals(Collection.class) |
| || collectionType.equals(List.class); |
| } |
| return isCollection; |
| } |
| |
| } |