Example usage for org.apache.poi.poifs.filesystem POIFSFileSystem getBigBlockSize

Introduction

In this page you can find the example usage for org.apache.poi.poifs.filesystem POIFSFileSystem getBigBlockSize.

Prototype

public int getBigBlockSize() 

Source Link

Usage

From source file:tv.amwa.maj.io.aaf.AAFBuilder.java

License:Apache License

/**
 * @param args/*from  ww  w .j  ava 2  s  . c  o  m*/
 */
public static void main(String[] args) throws IOException {

    if (args.length != 2)
        System.exit(1);

    final String inputFilename = args[0];
    final String outputFilename = args[1];

    POIFSReader r = new AAFReader();

    LocalAAFEventReader eventReader = new LocalAAFEventReader();
    r.registerListener(eventReader);

    AvidFactory.registerAvidExtensions();

    FileInputStream fis = null;

    long startTime = System.nanoTime();
    try {
        fis = new FileInputStream(inputFilename);
        r.read(new FileInputStream(inputFilename));
        eventReader.resolveEntries();
    } finally {
        if (fis != null)
            try {
                fis.close();
            } catch (Exception e) {
            }
    }
    long endTime = System.nanoTime();

    System.out.println("AAF file read in " + (endTime - startTime) + "ns.");

    ((PrefaceImpl) eventReader.getPreface()).setByteOrder(tv.amwa.maj.enumeration.ByteOrder.Big);
    System.out.println(eventReader.getPreface().getByteOrder());

    POIFSFileSystem outputFileSystem = new POIFSFileSystem();

    DirectoryEntry rootDir = outputFileSystem.getRoot();

    AAFWriterListener aafWriter = makeAAFWriterListener();
    DirectoryEntry metaDictionaryDir = rootDir.createDirectory(META_DICTIONARY_DIRNAME);
    DirectoryEntry prefaceDir = rootDir.createDirectory(PREFACE_DIRNAME);

    generateAAFStructure(prefaceDir, aafWriter, eventReader.getPreface());
    generateMetaDictionary(metaDictionaryDir, aafWriter, eventReader.getPreface());
    rootDir.createDocument(PROPERTIES_STREAMNAME, 70, aafWriter);
    rootDir.createDocument(REFERENCED_PROPERTIES_STREAMNAME, aafWriter.getReferencedPropertiesSize(),
            aafWriter);

    //       rootDir.setStorageClsid(
    //             (outputFileSystem.getBigBlockSize() == 4096) ?
    //                   new AAFClassID(AAFSignatureSSBin4K) :
    //                      new AAFClassID(AAFSignatureSSBinary));

    rootDir.setStorageClsid(new ClassID(rootEntryClassID, 0));

    FileOutputStream fos = null;
    try {
        fos = new FileOutputStream(outputFilename);
        outputFileSystem.writeFilesystem(fos);
    } finally {
        if (fos != null)
            try {
                fos.close();
            } catch (Exception e) {
            }
    }

    // AAF puts a signature in bytes 8-23 of the file
    // POIFS cannot write this

    RandomAccessFile fixFile = null;
    FileChannel fixChannel = null;
    try {
        fixFile = new RandomAccessFile(outputFilename, "rw");
        fixChannel = fixFile.getChannel();

        fixChannel.position(8);
        if (outputFileSystem.getBigBlockSize() == 4096)
            fixChannel.write(ByteBuffer.wrap(AAFSignatureSSBin4KBytes));
        else
            fixChannel.write(ByteBuffer.wrap(AAFSignatureSSBinaryBytes));
    } finally {
        if (fixChannel != null)
            fixChannel.close();
    }
}

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From source file:tv.amwa.maj.io.aaf.AAFFactory.java

License:Apache License

/**
 * <p>Write an AAF file with the given filename that is constructed from the given {@linkplain Preface preface}.<p>
 * /*from  ww w .  j ava2s .c  om*/
 * <p>Note that this version of MAJ only supports writing metadata-only files.</p>
 * 
 * @param preface Preface to use to construct an AAF file from.
 * @param outputFilename File path specification for the file to write the preface to.
 * 
 * @throws IOException An error occurred when writing the AAF file.
 * 
 * @see #readPreface(String)
 */
public final static void writePreface(Preface preface, String outputFilename) throws IOException {

    POIFSFileSystem outputFileSystem = new POIFSFileSystem();

    DirectoryEntry rootDir = outputFileSystem.getRoot();

    preface.updateDictionaries();
    //       System.out.println(preface);

    AAFWriterListener aafWriter = AAFBuilder.makeAAFWriterListener();
    DirectoryEntry metaDictionaryDir = rootDir.createDirectory(META_DICTIONARY_DIRNAME);
    DirectoryEntry prefaceDir = rootDir.createDirectory(PREFACE_DIRNAME);

    AAFBuilder.generateAAFStructure(prefaceDir, aafWriter, preface);
    AAFBuilder.generateMetaDictionary(metaDictionaryDir, aafWriter, preface);
    rootDir.createDocument(PROPERTIES_STREAMNAME, 70, aafWriter);
    rootDir.createDocument(REFERENCED_PROPERTIES_STREAMNAME, aafWriter.getReferencedPropertiesSize(),
            aafWriter);

    //       rootDir.setStorageClsid(
    //             (outputFileSystem.getBigBlockSize() == 4096) ?
    //                   new AAFClassID(AAFSignatureSSBin4K) :
    //                      new AAFClassID(AAFSignatureSSBinary));

    rootDir.setStorageClsid(new ClassID(rootEntryClassID, 0));

    FileOutputStream fos = null;
    try {
        fos = new FileOutputStream(outputFilename);
        outputFileSystem.writeFilesystem(fos);
    } finally {
        if (fos != null)
            try {
                fos.close();
            } catch (Exception e) {
            }
    }

    // AAF puts a signature in bytes 8-23 of the file
    // POIFS cannot write this

    RandomAccessFile fixFile = null;
    FileChannel fixChannel = null;
    try {
        fixFile = new RandomAccessFile(outputFilename, "rw");
        fixChannel = fixFile.getChannel();

        fixChannel.position(8);
        if (outputFileSystem.getBigBlockSize() == 4096)
            fixChannel.write(ByteBuffer.wrap(AAFSignatureSSBin4KBytes));
        else
            fixChannel.write(ByteBuffer.wrap(AAFSignatureSSBinaryBytes));
    } finally {
        if (fixChannel != null)
            fixChannel.close();
    }
}

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