Java Code Examples for com.igormaznitsa.jbbp.io.JBBPBitInputStream#readLong()

@Override
public ReadResult readFrom(final File file, final int index) throws IOException {
  final List<SCLCatalogItem> list = new ArrayList<>();
  final JBBPBitInputStream in = new JBBPBitInputStream(new FileInputStream(file));
  try {
    final long id = in.readLong(JBBPByteOrder.BIG_ENDIAN);
    if (id == 0x53494E434C414952L) {
      // it's scl
      final int fileNumber = in.readByte();
      for (int i = 0; i < fileNumber; i++) {
        final SCLCatalogItem item = CATALOG_PARSER.parse(in).mapTo(new SCLCatalogItem());
        list.add(item);
      }

      final SCLCatalogItem itemToRead = list.get(index);

      for (int i = 0; i < index; i++) {
        final int len = list.get(i).sectors * 256;
        if (len != in.skip(len)) {
          throw new IllegalStateException("Can't skip bytes:" + list.get(i).length);
        }
      }
      final long offset = in.getCounter();
      return new ReadResult(new ZXPolyData(
          new Info(itemToRead.name, itemToRead.type, itemToRead.start, itemToRead.length,
              (int) offset), this, in.readByteArray(itemToRead.sectors * 256)), null);

    } else {
      throw new IllegalArgumentException("It's not a SCl file: " + file);
    }
  } finally {
    JBBPUtils.closeQuietly(in);
  }
}
 

public ZXPolyData(final InputStream in, final List<AbstractFilePlugin> plugins)
    throws IOException {
  @Bin
  final class Parsed {

    int pluginId;
    byte[] info;
    byte[] array;
    byte[] mask;
    byte[] zxpoly0;
    byte[] zxpoly1;
    byte[] zxpoly2;
    byte[] zxpoly3;
  }

  final JBBPBitInputStream inStream = new JBBPBitInputStream(in);
  if (inStream.readLong(JBBPByteOrder.BIG_ENDIAN) != 0xABBAFAFABABE0123L) {
    throw new IOException("It is not a valid data block");
  }

  final Parsed parsed = PARSER.parse(inStream).mapTo(new Parsed());

  this.info = new Info(new ByteArrayInputStream(parsed.info));
  this.basedata = parsed.array;
  this.mask = parsed.mask;
  this.zxpoly = new byte[4][];
  this.zxpoly[0] = parsed.zxpoly0;
  this.zxpoly[1] = parsed.zxpoly1;
  this.zxpoly[2] = parsed.zxpoly2;
  this.zxpoly[3] = parsed.zxpoly3;

  AbstractFilePlugin plugin = null;
  for (final AbstractFilePlugin p : plugins) {
    if (parsed.pluginId == uid2int(p.getPluginUID())) {
      plugin = p;
      break;
    }
  }
  if (plugin == null) {
    throw new IOException("Can't find a plugin for UID [" + parsed.pluginId + ']');
  }
  this.basePlugin = plugin;

}
 

@Override
public JBBPAbstractField readVarField(Object sourceStruct, JBBPBitInputStream inStream, JBBPByteOrder byteOrder, JBBPNamedFieldInfo nullableNamedFieldInfo, int extraValue) throws IOException {
  return new JBBPFieldLong(nullableNamedFieldInfo, inStream.readLong(byteOrder));
}
 

@Override
public JBBPAbstractField readVarField(Object sourceStruct, JBBPBitInputStream inStream, JBBPByteOrder byteOrder, JBBPNamedFieldInfo nullableNamedFieldInfo, int extraValue) throws IOException {
  return new JBBPFieldLong(nullableNamedFieldInfo, inStream.readLong(byteOrder));
}