private void init(boolean strict, GeometryFactory gf) throws IOException, ShapefileException {
geometryFactory = gf;
if (channel instanceof FileChannel && useMemoryMappedBuffer) {
FileChannel fc = (FileChannel) channel;
buffer = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
buffer.position(0);
this.currentOffset = 0;
} else {
// force useMemoryMappedBuffer to false
this.useMemoryMappedBuffer = false;
// start small
buffer = NIOUtilities.allocate(1024);
fill(buffer, channel);
buffer.flip();
this.currentOffset = 0;
}
header = new ShapefileHeader();
header.read(buffer, strict);
fileShapeType = header.getShapeType();
handler = fileShapeType.getShapeHandler(gf);
if (handler == null) {
throw new IOException("Unsuported shape type:" + fileShapeType);
}
headerTransfer = ByteBuffer.allocate(8);
headerTransfer.order(ByteOrder.BIG_ENDIAN);
// make sure the record end is set now...
record.end = this.toFileOffset(buffer.position());
}
private void init(WarningListener warningListener) throws IOException, ShapefileException {
header = readHeader(channel, warningListener);
fileShapeType = header.getShapeType();
handler = fileShapeType.getShapeHandler();
// recordHeader = ByteBuffer.allocateDirect(8);
// recordHeader.order(ByteOrder.BIG_ENDIAN);
if (handler == null) {
throw new IOException("Unsuported shape type:" + fileShapeType);
}
buffer = new ReadBufferManager(channel);
}
