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/*
* 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 helper;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.ucb.XSimpleFileAccess;
/**
* It simulates an input and output stream and
* implements the interfaces XInputStream, XOutputStream.
* So it can be used for testing loading/saving of documents
* using streams instead of URLs.
*
*/
public class StreamSimulator implements com.sun.star.io.XInputStream ,
com.sun.star.io.XOutputStream ,
com.sun.star.io.XSeekable
{
/**
* @member m_sFileName name of the corresponding file on disk
* @member m_xInStream the internal input stream for reading
* @member m_xOutStream the internal input stream for writing
* @member m_xSeek points at runtime to m_xInStream or m_xOutStream and make it seekable
*
* @member //m_aProtocol the external set protocol object for logging messages
* @member m_bInWasUsed indicates, that the input stream interface was used
* @member m_bOutWasUsed indicates, that the output stream interface was used
*/
private com.sun.star.io.XInputStream m_xInStream ;
private com.sun.star.io.XOutputStream m_xOutStream ;
private com.sun.star.io.XSeekable m_xSeek ;
/**
* construct a new instance of this class
* It set the name of the corresponding file on disk, which
* should be source or target for the following operations on
* this object. And it regulate if it should function as
* input or output stream.
*
* @param sFileName
* name of the file on disk
* Will be used as source (if param bInput==true)
* or as target (if param bInput==false).
*
* @param bInput
* it specify, which interface should work at this object.
* <TRUE/> => we simulate an input stream
* <FALSE/> => we simulate an output stream
*
* @throw com.sun.star.io.NotConnectedException
* in case the internal streams to the file on disk couldn't established.
* They are necessary. Otherwise this simulator can't really work.
*/
public StreamSimulator( String sFileName , boolean bInput ,
lib.TestParameters param ) throws com.sun.star.io.NotConnectedException
{
try
{
XSimpleFileAccess xHelper = UnoRuntime.queryInterface(XSimpleFileAccess.class,
param.getMSF().createInstance("com.sun.star.ucb.SimpleFileAccess"));
if (xHelper == null)
throw new com.sun.star.io.NotConnectedException("ucb helper not available. Can't create streams.");
if (bInput)
{
m_xInStream = xHelper.openFileRead(sFileName);
m_xSeek = UnoRuntime.queryInterface(
com.sun.star.io.XSeekable.class,
m_xInStream);
}
else
{
m_xOutStream = xHelper.openFileWrite(sFileName);
m_xSeek = UnoRuntime.queryInterface(
com.sun.star.io.XSeekable.class,
m_xOutStream);
}
}
catch(com.sun.star.uno.Exception exUno)
{
throw new com.sun.star.io.NotConnectedException(exUno);
}
}
/**
* following methods simulates the XInputStream.
* The notice all actions inside the internal protocol
* and try to map all necessary functions to the internal
* open in-stream.
*/
public int readBytes( /*OUT*/ byte[][] lData ,
/*IN*/ int nBytesToRead ) throws com.sun.star.io.NotConnectedException ,
com.sun.star.io.BufferSizeExceededException,
com.sun.star.io.IOException
{
if (m_xInStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
int nRead = 0;
try
{
nRead = m_xInStream.readBytes(lData,nBytesToRead);
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.BufferSizeExceededException exBuffer ) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
return nRead;
}
public int readSomeBytes( /*OUT*/ byte[][] lData ,
/*IN*/ int nMaxBytesToRead ) throws com.sun.star.io.NotConnectedException ,
com.sun.star.io.BufferSizeExceededException ,
com.sun.star.io.IOException
{
if (m_xInStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
int nRead = 0;
try
{
nRead = m_xInStream.readSomeBytes(lData,nMaxBytesToRead);
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.BufferSizeExceededException exBuffer ) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
return nRead;
}
public void skipBytes( /*IN*/ int nBytesToSkip ) throws com.sun.star.io.NotConnectedException ,
com.sun.star.io.BufferSizeExceededException ,
com.sun.star.io.IOException
{
if (m_xInStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
try
{
m_xInStream.skipBytes(nBytesToSkip);
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.BufferSizeExceededException exBuffer ) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
}
public int available() throws com.sun.star.io.NotConnectedException,
com.sun.star.io.IOException
{
if (m_xInStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
int nAvailable = 0;
try
{
nAvailable = m_xInStream.available();
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
return nAvailable;
}
public void closeInput() throws com.sun.star.io.NotConnectedException,
com.sun.star.io.IOException
{
if (m_xInStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
try
{
m_xInStream.closeInput();
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
}
/**
* following methods simulates the XOutputStream.
* The notice all actions inside the internal protocol
* and try to map all necessary functions to the internal
* open out-stream.
*/
public void writeBytes( /*IN*/byte[] lData ) throws com.sun.star.io.NotConnectedException ,
com.sun.star.io.BufferSizeExceededException ,
com.sun.star.io.IOException
{
if (m_xOutStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
try
{
m_xOutStream.writeBytes(lData);
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.BufferSizeExceededException exBuffer ) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
}
public void flush() throws com.sun.star.io.NotConnectedException ,
com.sun.star.io.BufferSizeExceededException ,
com.sun.star.io.IOException
{
if (m_xOutStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
try
{
m_xOutStream.flush();
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.BufferSizeExceededException exBuffer ) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
}
public void closeOutput() throws com.sun.star.io.NotConnectedException ,
com.sun.star.io.BufferSizeExceededException,
com.sun.star.io.IOException
{
if (m_xOutStream == null)
{
throw new com.sun.star.io.NotConnectedException("stream not open");
}
try
{
m_xOutStream.closeOutput();
}
catch (com.sun.star.io.NotConnectedException exConnect) {
}
catch (com.sun.star.io.BufferSizeExceededException exBuffer ) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
}
/**
* following methods simulates the XSeekable.
* The notice all actions inside the internal protocol
* and try to map all necessary functions to the internal
* open stream.
*/
public void seek( /*IN*/long nLocation ) throws com.sun.star.lang.IllegalArgumentException,
com.sun.star.io.IOException
{
if (m_xSeek == null)
{
throw new com.sun.star.io.IOException("stream not seekable");
}
try
{
m_xSeek.seek(nLocation);
}
catch (com.sun.star.lang.IllegalArgumentException exArg ) {
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
}
public long getPosition() throws com.sun.star.io.IOException
{
if (m_xSeek == null)
{
throw new com.sun.star.io.IOException("stream not seekable");
}
long nPos = 0;
try
{
nPos = m_xSeek.getPosition();
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
return nPos;
}
public long getLength() throws com.sun.star.io.IOException
{
if (m_xSeek == null)
{
throw new com.sun.star.io.IOException("stream not seekable");
}
long nLen = 0;
try
{
nLen = m_xSeek.getLength();
}
catch (com.sun.star.io.IOException exIO ) {
}
catch (com.sun.star.uno.RuntimeException exRuntime) {
}
return nLen;
}
}
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