de.schlichtherle.io.archive.zip.OdfOutputArchive Maven / Gradle / Ivy

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TrueZIP is a Java based Virtual File System (VFS) to enable transparent, multi-threaded read/write access to archive files (ZIP, TAR etc.) as if they were directories. Archive files may be arbitrarily nested and the nesting level is only limited by heap and file system size.

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/*
 * Copyright (C) 2007-2010 Schlichtherle IT Services
 *
 * 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 de.schlichtherle.io.archive.zip;

import de.schlichtherle.io.archive.spi.ArchiveEntry;
import de.schlichtherle.io.archive.spi.MultiplexedOutputArchive;
import de.schlichtherle.io.archive.spi.OutputArchive;
import java.io.IOException;
import java.io.OutputStream;

/**
 * Created by {@link OdfDriver} to meet the special requirements of
 * OpenDocument Format (ODF) files.
 *
 * @author Christian Schlichtherle
 * @version $Id: OdfOutputArchive.java,v 1.4 2010/08/20 13:09:51 christian_schlichtherle Exp $
 */
public class OdfOutputArchive extends MultiplexedOutputArchive {

    /** The name of the entry to receive tender, loving care. */
    private static final String MIMETYPE = "mimetype";

    /** Whether we have started to write the mimetype entry or not. */
    private boolean mimetype;

    /** Creates a new {@code OdfOutputArchive}. */
    public OdfOutputArchive(OutputArchive target) {
        super(target);
    }

    public OutputStream getOutputStream(
            final ArchiveEntry entry,
            final ArchiveEntry srcEntry)
    throws IOException {
        final ZipEntry zipEntry = (ZipEntry) entry;

        if (MIMETYPE.equals(zipEntry.getName())) {
            mimetype = true;
            if (zipEntry.getMethod() == ZipEntry.UNKNOWN)
                zipEntry.setMethod(ZipEntry.STORED);
        }
        return super.getOutputStream(zipEntry, srcEntry);
    }

    public boolean isTargetBusy() {
        return !mimetype || super.isTargetBusy();
    }

    public void close() throws IOException {
        mimetype = true; // trigger writing temps
        super.close();
    }
}