Example usage for org.apache.commons.compress.archivers.sevenz SevenZArchiveEntry setContentMethods

Introduction

In this page you can find the example usage for org.apache.commons.compress.archivers.sevenz SevenZArchiveEntry setContentMethods.

Prototype

public void setContentMethods(final Iterable<? extends SevenZMethodConfiguration> methods) 

Source Link

Document

Sets the (compression) methods to use for entry's content - the default is LZMA2.

Usage

From source file:at.treedb.backup.Export.java

/**
 * Writes an uncompressed binary archive data file.
 * //w  ww  . ja va 2 s . c  om
 * @param path
 *            archive path
 * @param data
 *            binary data
 * @param date
 *            file creation date
 * @throws IOException
 */
private void write(String path, byte data[], Date date) throws IOException {
    SevenZArchiveEntry entry = createFileEntry(path, date);
    entry.setContentMethods(Arrays.asList(new SevenZMethodConfiguration(SevenZMethod.COPY)));
    sevenZOutput.putArchiveEntry(entry);
    System.out.println(path);
    sevenZOutput.write(data);
    sevenZOutput.closeArchiveEntry();
}

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From source file:at.treedb.util.Compress.java

/**
 * Adds a file to the archive// w w  w .j  a v  a  2s  .c o  m
 * 
 * @param file
 *            file to be compressed
 * @throws IOException
 */
private void addFile(File file) throws IOException {
    if (!exclude.isEmpty()) {
        String extension = getFileExtension(file);
        if (!extension.isEmpty() && exclude.contains(extension.toLowerCase())) {
            return;
        }
    }

    SevenZArchiveEntry entry = new SevenZArchiveEntry();
    entry.setName(file.getAbsolutePath().substring(baseDir.length()).replace('\\', '/'));
    entry.setAccessDate(file.lastModified());
    entry.setCreationDate(file.lastModified());
    entry.setLastModifiedDate(file.lastModified());
    entry.setDirectory(false);

    sevenZOutput.putArchiveEntry(entry);

    FileInputStream is = new FileInputStream(file);
    long size = file.length();
    byte[] buffer = new byte[BUFFER_SIZE];
    boolean setCompressMethod = false;
    while (size > 0) {
        long read = Math.min(buffer.length, size);
        is.read(buffer, 0, (int) read);
        if (!setCompressMethod) {
            setCompressMethod = true;
            entry.setContentMethods(Arrays.asList(new SevenZMethodConfiguration(
                    Export.findBestCompressionMethod(buffer, compressionMehtod))));
        }
        sevenZOutput.write(buffer, 0, (int) read);
        size -= read;
    }
    is.close();
    sevenZOutput.closeArchiveEntry();
}

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From source file:at.treedb.backup.Export.java

/**
 * Writes the {@code DBFSblock} objects of a {@code DBfile} to an archive
 * file.//from   w  w  w.  j a  v  a 2  s .  c o m
 * 
 * @param directory
 *            archive directory
 * @param file
 *            {@code DBfile}
 * @param date
 *            file creation date
 * @throws IOException
 */
private void write(String directory, DBfile file, Date date) throws IOException {
    SevenZArchiveEntry entry = createFileEntry(directory + file.getHistId(), date);
    sevenZOutput.putArchiveEntry(entry);
    DBinputStream is = new DBinputStream(file, dao);
    long size = file.getSize();
    byte[] buffer = new byte[BUFFER_SIZE];
    boolean setCompressMethod = false;
    while (size > 0) {
        long read = Math.min(buffer.length, size);
        is.read(buffer, 0, (int) read);
        if (!setCompressMethod) {
            setCompressMethod = true;
            entry.setContentMethods(Arrays.asList(
                    new SevenZMethodConfiguration(findBestCompressionMethod(buffer, compressionMethod))));
        }
        sevenZOutput.write(buffer, 0, (int) read);
        size -= read;
    }
    is.close();
    sevenZOutput.closeArchiveEntry();

}

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From source file:org.apache.ant.compress.taskdefs.SevenZ.java

public SevenZ() {
    setFactory(new SevenZStreamFactory() {
        public ArchiveOutputStream getArchiveOutputStream(File f, String encoding) throws IOException {
            SevenZArchiveOutputStream o = (SevenZArchiveOutputStream) super.getArchiveOutputStream(f, encoding);
            if (contentCompression != null) {
                o.setContentCompression(asMethod(contentCompression));
            }// w w w  .  ja v  a 2s. c  o  m
            if (contentMethods != null) {
                o.setContentMethods(contentMethods);
            }
            return o;
        }
    });
    setEntryBuilder(new ArchiveBase.EntryBuilder() {
        public ArchiveEntry buildEntry(ArchiveBase.ResourceWithFlags r) {
            SevenZArchiveEntry entry = new SevenZArchiveEntry();
            entry.setName(r.getName());
            entry.setDirectory(r.getResource().isDirectory());
            entry.setLastModifiedDate(new Date(r.getResource().getLastModified()));
            entry.setSize(r.getResource().getSize());
            if (keepCompression && r.getResourceFlags().hasContentMethods()) {
                entry.setContentMethods(r.getResourceFlags().getContentMethods());
            }
            return entry;
        }
    });
    setFileSetBuilder(new ArchiveBase.FileSetBuilder() {
        public ArchiveFileSet buildFileSet(Resource dest) {
            ArchiveFileSet afs = new SevenZFileSet();
            afs.setSrcResource(dest);
            return afs;
        }
    });
}

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