| /* |
| * 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.commons.vfs2.impl; |
| |
| import java.net.FileNameMap; |
| import java.net.URLConnection; |
| |
| import org.apache.commons.vfs2.FileContent; |
| import org.apache.commons.vfs2.FileContentInfo; |
| import org.apache.commons.vfs2.FileContentInfoFactory; |
| |
| /** |
| * The FileContentInfoFilenameFactory. |
| * <p> |
| * Uses the file name extension to determine the content-type. The content-encoding is not resolved. |
| * </p> |
| */ |
| public class FileContentInfoFilenameFactory implements FileContentInfoFactory { |
| |
| private static final FileContentInfo NULL_INSTANCE = new DefaultFileContentInfo(null, null); |
| |
| @Override |
| public FileContentInfo create(final FileContent fileContent) { |
| String contentType = null; |
| |
| final String name = fileContent.getFile().getName().getBaseName(); |
| if (name != null) { |
| contentType = URLConnection.getFileNameMap().getContentTypeFor(name); |
| } |
| |
| // optimize object creation for common case |
| if (contentType == null) { |
| return NULL_INSTANCE; |
| } |
| return new DefaultFileContentInfo(contentType, null); |
| } |
| } |