001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.commons.vfs2.provider.http;
018    
019    import org.apache.commons.httpclient.Header;
020    import org.apache.commons.httpclient.HeaderElement;
021    import org.apache.commons.vfs2.FileContent;
022    import org.apache.commons.vfs2.FileContentInfo;
023    import org.apache.commons.vfs2.FileContentInfoFactory;
024    import org.apache.commons.vfs2.FileSystemException;
025    import org.apache.commons.vfs2.impl.DefaultFileContentInfo;
026    import org.apache.commons.vfs2.util.FileObjectUtils;
027    
028    /**
029     * Creates the FileContentInfo.
030     *
031     * @author <a href="http://commons.apache.org/vfs/team-list.html">Commons VFS team</a>
032     */
033    public class HttpFileContentInfoFactory implements FileContentInfoFactory
034    {
035        public FileContentInfo create(FileContent fileContent) throws FileSystemException
036        {
037            HttpFileObject httpFile = (HttpFileObject) (FileObjectUtils
038                .getAbstractFileObject(fileContent.getFile()));
039    
040            String contentType = null;
041            String contentEncoding = null;
042    
043            Header header = httpFile.getHeadMethod().getResponseHeader("content-type");
044            if (header != null)
045            {
046                HeaderElement[] element = header.getElements();
047                if (element != null && element.length > 0)
048                {
049                    contentType = element[0].getName();
050                }
051            }
052    
053            contentEncoding = httpFile.getHeadMethod().getResponseCharSet();
054    
055            return new DefaultFileContentInfo(contentType, contentEncoding);
056        }
057    }