| /* |
| * 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.openmeetings.web.util; |
| |
| import static org.apache.openmeetings.util.OpenmeetingsVariables.webAppRootKey; |
| import static org.red5.logging.Red5LoggerFactory.getLogger; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.openmeetings.db.entity.file.FileItem; |
| import org.apache.wicket.request.resource.IResource; |
| import org.apache.wicket.request.resource.IResource.Attributes; |
| import org.apache.wicket.resource.FileSystemResource; |
| import org.apache.wicket.resource.FileSystemResourceReference; |
| import org.slf4j.Logger; |
| |
| public abstract class FileItemResourceReference<T extends FileItem> extends FileSystemResourceReference { |
| private static final long serialVersionUID = 1L; |
| private static final Logger log = getLogger(FileItemResourceReference.class, webAppRootKey); |
| |
| public FileItemResourceReference(String name) { |
| super(name); |
| } |
| |
| @Override |
| public IResource getResource() { |
| return new FileSystemResource() { |
| private static final long serialVersionUID = 1L; |
| private File file; |
| private T r; |
| |
| @Override |
| protected String getMimeType() throws IOException { |
| return FileItemResourceReference.this.getMimeType(r); |
| } |
| |
| @Override |
| protected ResourceResponse newResourceResponse(Attributes attributes) { |
| r = getFileItem(attributes); |
| if (r != null) { |
| file = getFile(r); |
| ResourceResponse rr = createResourceResponse(file.toPath()); |
| rr.setFileName(getFileName(r)); |
| return rr; |
| } else { |
| log.debug("No file item was found"); |
| ResourceResponse rr = new ResourceResponse(); |
| rr.setError(HttpServletResponse.SC_NOT_FOUND); |
| return rr; |
| } |
| } |
| }; |
| } |
| |
| protected abstract String getMimeType(T r); |
| protected abstract String getFileName(T r); |
| protected abstract File getFile(T r); |
| protected abstract T getFileItem(Attributes attributes); |
| } |