diff options
Diffstat (limited to 'ridljar/com/sun/star/lib/uno/adapter/ByteArrayToXInputStreamAdapter.java')
-rw-r--r-- | ridljar/com/sun/star/lib/uno/adapter/ByteArrayToXInputStreamAdapter.java | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/ridljar/com/sun/star/lib/uno/adapter/ByteArrayToXInputStreamAdapter.java b/ridljar/com/sun/star/lib/uno/adapter/ByteArrayToXInputStreamAdapter.java new file mode 100644 index 000000000..2d3e9a848 --- /dev/null +++ b/ridljar/com/sun/star/lib/uno/adapter/ByteArrayToXInputStreamAdapter.java @@ -0,0 +1,117 @@ +/* + * 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.XInputStream; +import com.sun.star.io.XSeekable; +import com.sun.star.lib.uno.helper.ComponentBase; + +public final class ByteArrayToXInputStreamAdapter + extends ComponentBase + implements XInputStream, XSeekable +{ + + byte[] m_bytes; + int m_length; + int m_pos; + + boolean m_open; + + /** Creates a new instance of ByteArrayXInputStram */ + public ByteArrayToXInputStreamAdapter(byte[] bytes) { + init(bytes); + } + + public void init(byte[] bytes) { + m_bytes = bytes; + m_length = bytes.length; + m_pos = 0; + m_open = true; + } + + private void _check() throws com.sun.star.io.NotConnectedException, com.sun.star.io.IOException { + if (m_bytes == null) { + throw new com.sun.star.io.NotConnectedException("no bytes"); + } + if(!m_open) { + throw new com.sun.star.io.IOException("input closed"); + } + } + + public int available() throws com.sun.star.io.NotConnectedException, com.sun.star.io.IOException { + _check(); + long a = m_length - m_pos; + if (a != (int)a) + throw new com.sun.star.io.IOException("integer overflow"); + else { + return (int)a; + } + } + + public void closeInput() throws com.sun.star.io.NotConnectedException, com.sun.star.io.IOException { + _check(); + m_open = false; + } + + public int readBytes(byte[][] values, int param) throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException { + _check(); + try { + int remain = (m_length - m_pos); + if (param > remain) param = remain; + /* ARGH!!! */ + if (values[0] == null){ + values[0] = new byte[param]; + } + System.arraycopy(m_bytes, m_pos, values[0], 0, param); + m_pos += param; + return param; + } catch (ArrayIndexOutOfBoundsException ex) { + throw new com.sun.star.io.BufferSizeExceededException(ex, "buffer overflow"); + } catch (Exception ex) { + throw new com.sun.star.io.IOException(ex, "error accessing buffer"); + } + } + + public int readSomeBytes(byte[][] values, int param) throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException { + return readBytes(values, param); + } + + public void skipBytes(int param) throws com.sun.star.io.NotConnectedException, com.sun.star.io.BufferSizeExceededException, com.sun.star.io.IOException { + _check(); + if (param > (m_length - m_pos)) + throw new com.sun.star.io.BufferSizeExceededException("buffer overflow"); + m_pos += param; + } + + public long getLength() throws com.sun.star.io.IOException { + if (m_bytes != null) return m_length; + else throw new com.sun.star.io.IOException("no bytes"); + } + + public long getPosition() throws com.sun.star.io.IOException { + if (m_bytes != null) return m_pos; + else throw new com.sun.star.io.IOException("no bytes"); + } + + public void seek(long param) throws com.sun.star.lang.IllegalArgumentException, com.sun.star.io.IOException { + if (m_bytes != null){ + if (param < 0 || param > m_length) throw new com.sun.star.lang.IllegalArgumentException("invalid seek position"); + else m_pos = (int)param; + }else throw new com.sun.star.io.IOException("no bytes"); + } +} |