| /* |
| * 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.myfaces.extensions.scripting.springframework.monitor.resources; |
| |
| import org.apache.myfaces.extensions.scripting.monitor.resources.Resource; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| /** |
| * <p>A resource implementation that basically just adapts Spring resources such that |
| * you can use Spring resource objects within MyFaces Scripting as well. In doing so, |
| * you're able to use its pattern based resource resolving mechanisms as well.</p> |
| * |
| * @author Bernhard Huemer |
| */ |
| public class ResourceAdapter implements Resource { |
| |
| /** The underlying Spring resource object that we're delegating to. */ |
| private org.springframework.core.io.Resource resource; |
| |
| // ------------------------------------------ Constructors |
| |
| /** |
| * <p>Constructs a new resource adapter using the underlying Spring resource object |
| * that this adapter is delegating to afterwards.</p> |
| * |
| * @param resource the underlying Spring resource object |
| */ |
| public ResourceAdapter(org.springframework.core.io.Resource resource) { |
| if (resource == null) { |
| throw new IllegalArgumentException( |
| "The given resource object must not be null."); |
| } |
| |
| this.resource = resource; |
| } |
| |
| // ------------------------------------------ Resource methods |
| |
| /** |
| * <p>Returns a reference to this resource on the file system, |
| * i.e it returns a reference to a java.io.File object.</p> |
| * |
| * @return a reference to this resource on the file system |
| */ |
| public File getFile() { |
| try { |
| return resource.getFile(); |
| } catch (IOException ex) { |
| // This shouldn't happen as we're actually only dealing with Spring resource |
| // implementations that don't throw this exception, hence we rethrow this |
| // exception unchecked. |
| throw new IllegalStateException( |
| "The Spring resource object isn't supposed to throw an IOException!", ex); |
| } |
| } |
| |
| /** |
| * <p>Returns the time that the resource denoted by this reference was last modified.</p> |
| * |
| * @return A <code>long</code> value representing the time the file was |
| * last modified or <code>0L</code> if the file does not exist |
| * or if an I/O error occurs |
| */ |
| public long lastModified() { |
| try { |
| return resource.lastModified(); |
| } catch (IOException ex) { |
| return 0L; |
| } |
| } |
| |
| } |