@Override @SuppressWarnings( {"unchecked" } ) public <X> X unwrap(byte[] value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } if ( Byte[].class.isAssignableFrom( type ) ) { return (X) value; } if ( byte[].class.isAssignableFrom( type ) ) { return (X) value; } if ( InputStream.class.isAssignableFrom( type ) ) { return (X) new ByteArrayInputStream( value ); } if ( BinaryStream.class.isAssignableFrom( type ) ) { return (X) new BinaryStreamImpl( value ); } if ( Blob.class.isAssignableFrom( type ) ) { return (X) options.getLobCreator().createBlob( value ); } throw unknownUnwrap( type ); }
@SuppressWarnings({ "unchecked" }) public <X> X unwrap(byte[] value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } if ( byte[].class.isAssignableFrom( type ) ) { return (X) value; } if ( InputStream.class.isAssignableFrom( type ) ) { return (X) new ByteArrayInputStream( value ); } if ( BinaryStream.class.isAssignableFrom( type ) ) { return (X) new BinaryStreamImpl( value ); } if ( Blob.class.isAssignableFrom( type ) ) { return (X) options.getLobCreator().createBlob( value ); } throw unknownUnwrap( type ); }
@SuppressWarnings({ "unchecked" }) @Override public <X> X unwrap(Byte[] value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } if ( Byte[].class.isAssignableFrom( type ) ) { return (X) value; } if ( byte[].class.isAssignableFrom( type ) ) { return (X) unwrapBytes( value ); } if ( InputStream.class.isAssignableFrom( type ) ) { return (X) new ByteArrayInputStream( unwrapBytes( value ) ); } if ( BinaryStream.class.isAssignableFrom( type ) ) { return (X) new BinaryStreamImpl( unwrapBytes( value ) ); } if ( Blob.class.isAssignableFrom( type ) ) { return (X) options.getLobCreator().createBlob( unwrapBytes( value ) ); } throw unknownUnwrap( type ); }
@SuppressWarnings({ "unchecked" }) public <X> X unwrap(T value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } else if ( type.isInstance( value ) ) { return (X) value; } else if ( byte[].class.isAssignableFrom( type ) ) { return (X) toBytes( value ); } else if ( InputStream.class.isAssignableFrom( type ) ) { return (X) new ByteArrayInputStream( toBytes( value ) ); } else if ( BinaryStream.class.isAssignableFrom( type ) ) { return (X) new BinaryStreamImpl( toBytes( value ) ); } else if ( Blob.class.isAssignableFrom( type )) { return (X) options.getLobCreator().createBlob( toBytes(value) ); } throw unknownUnwrap( type ); }
@SuppressWarnings({"unchecked"}) @Override public <X> X unwrap(T value, Class<X> type, WrapperOptions options) { if (value == null) { return null; } else if (byte[].class.isAssignableFrom(type)) { return (X) toBytes(value); } else if (InputStream.class.isAssignableFrom(type)) { return (X) new ByteArrayInputStream(toBytes(value)); } else if (BinaryStream.class.isAssignableFrom(type)) { return (X) new BinaryStreamImpl(toBytes(value)); } else if (Blob.class.isAssignableFrom(type)) { return (X) options.getLobCreator().createBlob(toBytes(value)); } throw unknownUnwrap(type); }
/** * Extract a portion of the bytes from the given stream. * * @param inputStream The stream of bytes. * @param start The start position/offset (0-based, per general stream/reader contracts). * @param length The amount to extract * * @return The extracted bytes */ public static byte[] extractBytes(InputStream inputStream, long start, int length) { if ( BinaryStream.class.isInstance( inputStream ) && Integer.MAX_VALUE > start ) { byte[] data = ( (BinaryStream ) inputStream ).getBytes(); int size = Math.min( length, data.length ); byte[] result = new byte[size]; System.arraycopy( data, (int) start, result, 0, size ); return result; } ByteArrayOutputStream outputStream = new ByteArrayOutputStream( length ); try { long skipped = inputStream.skip( start ); if ( skipped != start ) { throw new HibernateException( "Unable to skip needed bytes" ); } byte[] buffer = new byte[BUFFER_SIZE]; int bytesRead = 0; while ( true ) { int amountRead = inputStream.read( buffer ); if ( amountRead == -1 ) { break; } outputStream.write( buffer, 0, amountRead ); if ( amountRead < buffer.length ) { // we have read up to the end of stream break; } bytesRead += amountRead; if ( bytesRead >= length ) { break; } } } catch ( IOException ioe ) { throw new HibernateException( "IOException occurred reading a binary value", ioe ); } return outputStream.toByteArray(); }
@SuppressWarnings({ "unchecked" }) public <X> X unwrap(Blob value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } try { if ( BinaryStream.class.isAssignableFrom( type ) ) { if ( BlobImplementer.class.isInstance( value ) ) { // if the incoming Blob is a wrapper, just pass along its BinaryStream return (X) ( (BlobImplementer) value ).getUnderlyingStream(); } else { // otherwise we need to build a BinaryStream... return (X) new BinaryStreamImpl( DataHelper.extractBytes( value.getBinaryStream() ) ); } } else if ( byte[].class.isAssignableFrom( type )) { if ( BlobImplementer.class.isInstance( value ) ) { // if the incoming Blob is a wrapper, just grab the bytes from its BinaryStream return (X) ( (BlobImplementer) value ).getUnderlyingStream().getBytes(); } else { // otherwise extract the bytes from the stream manually return (X) DataHelper.extractBytes( value.getBinaryStream() ); } } else if (Blob.class.isAssignableFrom( type )) { final Blob blob = WrappedBlob.class.isInstance( value ) ? ( (WrappedBlob) value ).getWrappedBlob() : value; return (X) blob; } } catch ( SQLException e ) { throw new HibernateException( "Unable to access blob stream", e ); } throw unknownUnwrap( type ); }
@Override public <X> BasicBinder<X> getBlobBinder(final JavaTypeDescriptor<X> javaTypeDescriptor) { return new BasicBinder<X>( javaTypeDescriptor, this ) { @Override protected void doBind(PreparedStatement st, X value, int index, WrapperOptions options) throws SQLException { final BinaryStream binaryStream = javaTypeDescriptor.unwrap( value, BinaryStream.class, options ); st.setBinaryStream( index, binaryStream.getInputStream(), binaryStream.getLength() ); } }; }
/** * Extract a portion of the bytes from the given stream. * * @param inputStream The stream of bytes. * @param start The start position/offset (0-based, per general stream/reader contracts). * @param length The amount to extract * * @return The extracted bytes */ public static byte[] extractBytes(InputStream inputStream, long start, int length) { if ( BinaryStream.class.isInstance( inputStream ) && Integer.MAX_VALUE > start ) { byte[] data = ( (BinaryStream) inputStream ).getBytes(); int size = Math.min( length, data.length ); byte[] result = new byte[size]; System.arraycopy( data, (int) start, result, 0, size ); return result; } ByteArrayOutputStream outputStream = new ByteArrayOutputStream( length ); try { long skipped = inputStream.skip( start ); if ( skipped != start ) { throw new HibernateException( "Unable to skip needed bytes" ); } byte[] buffer = new byte[BUFFER_SIZE]; int bytesRead = 0; while ( true ) { int amountRead = inputStream.read( buffer ); if ( amountRead == -1 ) { break; } outputStream.write( buffer, 0, amountRead ); if ( amountRead < buffer.length ) { // we have read up to the end of stream break; } bytesRead += amountRead; if ( bytesRead >= length ) { break; } } } catch ( IOException ioe ) { throw new HibernateException( "IOException occurred reading a binary value", ioe ); } return outputStream.toByteArray(); }
@Override public <X> X unwrap(BufferedContent value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } if ( BufferedContent.class.isAssignableFrom(type)){ return (X) value; } if ( BinaryStream.class.isAssignableFrom(type)) { return (X) new BinaryStreamImpl(DataHelper.extractBytes(value.getInputStream())); } throw unknownUnwrap( type ); }
@Override @SuppressWarnings({ "unchecked" }) public <X> X unwrap(Blob value, Class<X> type, WrapperOptions options) { if ( value == null ) { return null; } try { if ( BinaryStream.class.isAssignableFrom( type ) ) { if ( BlobImplementer.class.isInstance( value ) ) { // if the incoming Blob is a wrapper, just pass along its BinaryStream return (X) ( (BlobImplementer) value ).getUnderlyingStream(); } else { // otherwise we need to build a BinaryStream... return (X) new BinaryStreamImpl( DataHelper.extractBytes( value.getBinaryStream() ) ); } } else if ( byte[].class.isAssignableFrom( type )) { if ( BlobImplementer.class.isInstance( value ) ) { // if the incoming Blob is a wrapper, just grab the bytes from its BinaryStream return (X) ( (BlobImplementer) value ).getUnderlyingStream().getBytes(); } else { // otherwise extract the bytes from the stream manually return (X) DataHelper.extractBytes( value.getBinaryStream() ); } } else if (Blob.class.isAssignableFrom( type )) { final Blob blob = WrappedBlob.class.isInstance( value ) ? ( (WrappedBlob) value ).getWrappedBlob() : value; return (X) blob; } } catch ( SQLException e ) { throw new HibernateException( "Unable to access blob stream", e ); } throw unknownUnwrap( type ); }