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 */
017package org.apache.commons.vfs2.provider.http;
018
019import java.io.IOException;
020
021import org.apache.commons.httpclient.Header;
022import org.apache.commons.httpclient.HeaderElement;
023import org.apache.commons.httpclient.methods.HeadMethod;
024import org.apache.commons.lang3.ArrayUtils;
025import org.apache.commons.vfs2.FileContent;
026import org.apache.commons.vfs2.FileContentInfo;
027import org.apache.commons.vfs2.FileContentInfoFactory;
028import org.apache.commons.vfs2.FileSystemException;
029import org.apache.commons.vfs2.impl.DefaultFileContentInfo;
030import org.apache.commons.vfs2.util.FileObjectUtils;
031
032/**
033 * Creates FileContentInfo instances for HTTP.
034 *
035 * @deprecated Use {@link org.apache.commons.vfs2.provider.http5}.
036 */
037@Deprecated
038public class HttpFileContentInfoFactory implements FileContentInfoFactory {
039
040    /**
041     * Constructs a new instance.
042     */
043    public HttpFileContentInfoFactory() {
044        // empty
045    }
046
047    @Override
048    public FileContentInfo create(final FileContent fileContent) throws FileSystemException {
049
050        String contentType = null;
051
052        final HeadMethod headMethod;
053        try (HttpFileObject<HttpFileSystem> httpFile = (HttpFileObject<HttpFileSystem>) FileObjectUtils
054                .getAbstractFileObject(fileContent.getFile())) {
055            headMethod = httpFile.getHeadMethod();
056        } catch (final IOException e) {
057            throw new FileSystemException(e);
058        }
059        final Header header = headMethod.getResponseHeader("content-type");
060        if (header != null) {
061            final HeaderElement[] element = header.getElements();
062            if (!ArrayUtils.isEmpty(element)) {
063                contentType = element[0].getName();
064            }
065        }
066
067        return new DefaultFileContentInfo(contentType, headMethod.getResponseCharSet());
068    }
069}