ch.cyberduck.core.ftp.FTPAttributesFinderFeature.java Source code

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Here is the source code for ch.cyberduck.core.ftp.FTPAttributesFinderFeature.java

Source

package ch.cyberduck.core.ftp;

/*
 * Copyright (c) 2002-2014 David Kocher. All rights reserved.
 * http://cyberduck.io/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * Bug fixes, suggestions and comments should be sent to:
 * feedback@cyberduck.io
 */

import ch.cyberduck.core.AttributedList;
import ch.cyberduck.core.Cache;
import ch.cyberduck.core.DisabledListProgressListener;
import ch.cyberduck.core.Path;
import ch.cyberduck.core.PathAttributes;
import ch.cyberduck.core.exception.BackgroundException;
import ch.cyberduck.core.exception.InteroperabilityException;
import ch.cyberduck.core.features.AttributesFinder;

import org.apache.commons.net.ftp.FTPCmd;
import org.apache.commons.net.ftp.FTPReply;

import java.io.IOException;
import java.util.Arrays;

public class FTPAttributesFinderFeature implements AttributesFinder {

    private final FTPSession session;

    public FTPAttributesFinderFeature(FTPSession session) {
        this.session = session;
    }

    @Override
    public PathAttributes find(final Path file) throws BackgroundException {
        if (file.isRoot()) {
            return PathAttributes.EMPTY;
        }
        try {
            if (session.getClient().hasFeature(FTPCmd.MLST.getCommand())) {
                if (!FTPReply
                        .isPositiveCompletion(session.getClient().sendCommand(FTPCmd.MLST, file.getAbsolute()))) {
                    throw new FTPException(session.getClient().getReplyCode(),
                            session.getClient().getReplyString());
                }
                final FTPDataResponseReader reader = new FTPMlsdListResponseReader();
                final AttributedList<Path> attributes = reader.read(file.getParent(),
                        Arrays.asList(session.getClient().getReplyStrings()), new DisabledListProgressListener());
                if (attributes.contains(file)) {
                    return attributes.get(attributes.indexOf(file)).attributes();
                }
            }
            throw new InteroperabilityException("No support for MLST in reply to FEAT");
        } catch (IOException e) {
            throw new FTPExceptionMappingService().map("Failure to read attributes of {0}", e, file);
        }
    }

    @Override
    public AttributesFinder withCache(final Cache<Path> cache) {
        return this;
    }
}