ch.cyberduck.core.b2.B2TouchFeature.java Source code

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Here is the source code for ch.cyberduck.core.b2.B2TouchFeature.java

Source

package ch.cyberduck.core.b2;

/*
 * Copyright (c) 2002-2016 iterate GmbH. All rights reserved.
 * https://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.
 */

import ch.cyberduck.core.DisabledConnectionCallback;
import ch.cyberduck.core.Path;
import ch.cyberduck.core.PathAttributes;
import ch.cyberduck.core.exception.BackgroundException;
import ch.cyberduck.core.features.Touch;
import ch.cyberduck.core.features.Write;
import ch.cyberduck.core.io.Checksum;
import ch.cyberduck.core.io.DefaultStreamCloser;
import ch.cyberduck.core.io.StatusOutputStream;
import ch.cyberduck.core.transfer.TransferStatus;

import org.apache.commons.io.input.NullInputStream;

import synapticloop.b2.response.B2FileResponse;
import synapticloop.b2.response.BaseB2Response;

public class B2TouchFeature implements Touch<BaseB2Response> {

    private Write<BaseB2Response> writer;

    public B2TouchFeature(final B2Session session) {
        this.writer = new B2WriteFeature(session);
    }

    @Override
    public Path touch(final Path file, final TransferStatus status) throws BackgroundException {
        if (Checksum.NONE == status.getChecksum()) {
            status.setChecksum(writer.checksum(file).compute(new NullInputStream(0L), status));
        }
        status.setTimestamp(System.currentTimeMillis());
        final StatusOutputStream<BaseB2Response> out = writer.write(file, status, new DisabledConnectionCallback());
        new DefaultStreamCloser().close(out);
        return new Path(file.getParent(), file.getName(), file.getType(), new PathAttributes(file.attributes())
                .withVersionId(((B2FileResponse) out.getStatus()).getFileId()));
    }

    @Override
    public boolean isSupported(final Path workdir) {
        // Creating files is only possible inside a bucket.
        return !workdir.isRoot();
    }

    @Override
    public B2TouchFeature withWriter(final Write<BaseB2Response> writer) {
        this.writer = writer;
        return this;
    }
}