org.jclouds.vfs.provider.blobstore.BlobStoreFileNameParser.java Source code

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Here is the source code for org.jclouds.vfs.provider.blobstore.BlobStoreFileNameParser.java

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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
 *
 * ====================================================================
 * Licensed 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.jclouds.vfs.provider.blobstore;

import java.net.URI;

import org.apache.commons.vfs.FileName;
import org.apache.commons.vfs.FileSystemException;
import org.apache.commons.vfs.FileType;
import org.apache.commons.vfs.provider.URLFileNameParser;
import org.apache.commons.vfs.provider.UriParser;
import org.apache.commons.vfs.provider.VfsComponentContext;
import org.jclouds.domain.Credentials;
import org.jclouds.http.HttpUtils;

/**
 * @author Adrian Cole
 */
public class BlobStoreFileNameParser extends URLFileNameParser {
    public static final BlobStoreFileNameParser INSTANCE = new BlobStoreFileNameParser();

    public static BlobStoreFileNameParser getInstance() {
        return INSTANCE;
    }

    public BlobStoreFileNameParser() {
        super(443);
    }

    public FileName parseUri(final VfsComponentContext context, FileName base, String filename)
            throws FileSystemException {

        // if there are unencoded characters in the password, things break.
        URI uri = HttpUtils.createUri(filename);

        filename = uri.toASCIIString();

        Credentials creds = Credentials.parse(uri);

        StringBuffer name = new StringBuffer();

        // Extract the scheme and authority parts
        Authority auth = extractToPath(filename, name);

        // Decode and adjust separators
        UriParser.canonicalizePath(name, 0, name.length(), this);
        UriParser.fixSeparators(name);

        // Extract the container
        String container = UriParser.extractFirstElement(name);
        if (container == null || container.length() == 0) {
            throw new FileSystemException("vfs.provider.blobstore/missing-container-name.error", filename);
        }

        // Normalise the path. Do this after extracting the container name
        FileType fileType = UriParser.normalisePath(name);
        String path = name.toString();

        return new BlobStoreFileName(auth.hostName, creds.identity, creds.credential, path, fileType, container);
    }

}