| /* |
| * 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.wicket.request.resource; |
| |
| import java.util.Locale; |
| |
| import jakarta.servlet.http.HttpServletResponse; |
| |
| import org.apache.wicket.Application; |
| |
| /** |
| * A {@link ResourceReference} which should be used to lookup a {@link IResource} from the globally |
| * registered ones (also known as application shared resources). If there is no shared resource with |
| * such {@link Key key} then it checks whether there is a {@link PackageResource} with this |
| * {@link Key key} and registers it automatically if it exists. |
| * <p> |
| * Note: Cannot be registered in {@link ResourceReferenceRegistry} because |
| * {@link SharedResourceReference} is just a shortcut to the {@link IResource resource} of another |
| * {@link ResourceReference} |
| */ |
| public class SharedResourceReference extends ResourceReference |
| { |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * Construct. |
| * |
| * @param scope |
| * Scope of resource |
| * @param name |
| * Logical name of resource |
| * @param locale |
| * The locale of the resource |
| * @param style |
| * The resource style (see {@link org.apache.wicket.Session}) |
| * @param variation |
| * The component specific variation of the style |
| */ |
| public SharedResourceReference(Class<?> scope, String name, Locale locale, String style, |
| String variation) |
| { |
| super(scope, name, locale, style, variation); |
| } |
| |
| /** |
| * Construct. |
| * |
| * @param scope |
| * Scope of resource |
| * @param name |
| * Logical name of resource |
| */ |
| public SharedResourceReference(Class<?> scope, String name) |
| { |
| super(scope, name); |
| } |
| |
| /** |
| * Construct. |
| * |
| * @param name |
| * resource name |
| */ |
| public SharedResourceReference(String name) |
| { |
| super(name); |
| } |
| |
| @Override |
| public IResource getResource() |
| { |
| ResourceReference ref = Application.get() |
| .getResourceReferenceRegistry() |
| .getResourceReference(getScope(), getName(), getLocale(), getStyle(), getVariation(), |
| false, true); |
| |
| if (ref == null) |
| { |
| return new AbstractResource() |
| { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| protected ResourceResponse newResourceResponse(Attributes attributes) |
| { |
| ResourceResponse res = new ResourceResponse(); |
| res.setError(HttpServletResponse.SC_NOT_FOUND); |
| return res; |
| } |
| }; |
| } |
| else if (ref != this) |
| { |
| return ref.getResource(); |
| } |
| else |
| { |
| throw new IllegalStateException( |
| "SharedResourceReference can not be registered globally. See the documentation of this class."); |
| } |
| } |
| |
| @Override |
| public boolean canBeRegistered() |
| { |
| return false; |
| } |
| } |