| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| /* |
| * ByteArrayXInputStram.java |
| * |
| * Created on 10. April 2003, 15:45 |
| */ |
| |
| package com.sun.star.lib.uno.adapter; |
| |
| /** |
| * |
| * @author lo119109 |
| */ |
| |
| import com.sun.star.io.XInputStream; |
| import com.sun.star.io.XSeekable; |
| import com.sun.star.lib.uno.helper.ComponentBase; |
| |
| public 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) { |
| // System.err.println("ByteArrayXInputStream"); |
| 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) { |
| // System.err.println("check failed no bytes!"); |
| throw new com.sun.star.io.NotConnectedException("no bytes"); |
| } |
| if(!m_open) { |
| // System.err.println("check failed: closed"); |
| 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 { |
| // System.err.println("available() -> "+a); |
| return (int)a; |
| } |
| } |
| |
| public void closeInput() throws com.sun.star.io.NotConnectedException, com.sun.star.io.IOException { |
| // System.err.println("closeInput()"); |
| _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 { |
| // System.err.println("readbytes(..., "+param+")"); |
| _check(); |
| try { |
| int remain = (int)(m_length - m_pos); |
| if (param > remain) param = remain; |
| /* ARGH!!! */ |
| if (values[0] == null){ |
| values[0] = new byte[param]; |
| // System.err.println("allocated new buffer of "+param+" bytes"); |
| } |
| System.arraycopy(m_bytes, m_pos, values[0], 0, param); |
| // System.err.println("readbytes() -> "+param); |
| m_pos += param; |
| return param; |
| } catch (ArrayIndexOutOfBoundsException ae) { |
| // System.err.println("readbytes() -> ArrayIndexOutOfBounds"); |
| ae.printStackTrace(); |
| throw new com.sun.star.io.BufferSizeExceededException("buffer overflow"); |
| } catch (Exception e) { |
| // System.err.println("readbytes() -> Exception: "+e.getMessage()); |
| e.printStackTrace(); |
| throw new com.sun.star.io.IOException("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 { |
| // System.err.println("readSomebytes()"); |
| 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 { |
| // System.err.println("skipBytes("+param+")"); |
| _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 { |
| // System.err.println("getLength() -> "+m_length); |
| 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 { |
| // System.err.println("getPosition() -> "+m_pos); |
| 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 { |
| // System.err.println("seek("+param+")"); |
| 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"); |
| } |
| |
| public void finalize() throws Throwable{ |
| // System.err.println("finalizer called for ByteArrayXInputStream!"); |
| super.finalize(); |
| } |
| |
| } |