diff options
Diffstat (limited to 'ridljar/com/sun/star/lib/uno/adapter/XOutputStreamToByteArrayAdapter.java')
-rw-r--r-- | ridljar/com/sun/star/lib/uno/adapter/XOutputStreamToByteArrayAdapter.java | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/ridljar/com/sun/star/lib/uno/adapter/XOutputStreamToByteArrayAdapter.java b/ridljar/com/sun/star/lib/uno/adapter/XOutputStreamToByteArrayAdapter.java new file mode 100644 index 000000000..48871277a --- /dev/null +++ b/ridljar/com/sun/star/lib/uno/adapter/XOutputStreamToByteArrayAdapter.java @@ -0,0 +1,94 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ +package com.sun.star.lib.uno.adapter; + +import com.sun.star.io.*; +import com.sun.star.lib.uno.helper.ComponentBase; + +public final class XOutputStreamToByteArrayAdapter + extends ComponentBase + implements XOutputStream +{ + private static final int initialSize = 100240; // 10 kb + private int size = 0; + private int position = 0; + private boolean externalBuffer = false; + private byte[] buffer; + + /** Creates a new instance of ByteArrayXOutputStream */ + public XOutputStreamToByteArrayAdapter() { + this(null); + } + + public XOutputStreamToByteArrayAdapter(byte[] aBuffer) { + if (aBuffer != null) { + externalBuffer = true; + buffer = aBuffer; + size = buffer.length; + } else { + size = initialSize; + buffer = new byte[size]; + } + } + + public byte[] getBuffer() { + return buffer; + } + + public void closeOutput() + throws com.sun.star.io.NotConnectedException, + com.sun.star.io.BufferSizeExceededException, + com.sun.star.io.IOException + { + // trim buffer + if ( buffer.length > position && !externalBuffer ) + { + byte[] newBuffer = new byte[position]; + System.arraycopy(buffer, 0, newBuffer, 0, position); + buffer = newBuffer; + } + } + + public void flush() + throws com.sun.star.io.NotConnectedException, + com.sun.star.io.BufferSizeExceededException, + com.sun.star.io.IOException + { + } + + public void writeBytes(byte[] values) + throws com.sun.star.io.NotConnectedException, + com.sun.star.io.BufferSizeExceededException, + com.sun.star.io.IOException + { + if ( values.length > size-position ) + { + if ( externalBuffer ) + throw new BufferSizeExceededException("out of buffer space, cannot grow external buffer"); + while ( values.length > size-position ) { + size *= 2; + } + byte[] newBuffer = new byte[size]; + System.arraycopy(buffer, 0, newBuffer, 0, position); + buffer = newBuffer; + } + System.arraycopy(values, 0, buffer, position, values.length); + position += values.length; + } + +} |