svl/source/fsstor/ostreamcontainer.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "ostreamcontainer.hxx"
  21
  22 #include <cppuhelper/queryinterface.hxx>
  23
  24
  25 using namespace ::com::sun::star;
  26
  27 OFSStreamContainer::OFSStreamContainer( const uno::Reference < io::XStream >& xStream )
  28 : m_bDisposed( false )
  29 , m_bInputClosed( false )
  30 , m_bOutputClosed( false )
  31 , m_pListenersContainer( NULL )
  32 , m_pTypeCollection( NULL )
  33 {
  34     try
  35     {
  36         m_xStream = xStream;
  37         if ( !m_xStream.is() )
  38             throw uno::RuntimeException();
  39
  40         m_xSeekable = uno::Reference< io::XSeekable >( xStream, uno::UNO_QUERY );
  41         m_xInputStream = xStream->getInputStream();
  42         m_xOutputStream = xStream->getOutputStream();
  43         m_xTruncate = uno::Reference< io::XTruncate >( m_xOutputStream, uno::UNO_QUERY );
  44         m_xAsyncOutputMonitor = uno::Reference< io::XAsyncOutputMonitor >( m_xOutputStream, uno::UNO_QUERY );
  45     }
  46     catch( uno::Exception& )
  47     {
  48         m_xStream = uno::Reference< io::XStream >();
  49         m_xSeekable = uno::Reference< io::XSeekable >();
  50         m_xInputStream = uno::Reference< io::XInputStream >();
  51         m_xOutputStream = uno::Reference< io::XOutputStream >();
  52         m_xTruncate = uno::Reference< io::XTruncate >();
  53         m_xAsyncOutputMonitor = uno::Reference< io::XAsyncOutputMonitor >();
  54     }
  55 }
  56
  57 OFSStreamContainer::~OFSStreamContainer()
  58 {
  59     if ( m_pListenersContainer )
  60     {
  61         delete m_pListenersContainer;
  62         m_pListenersContainer = NULL;
  63     }
  64 }
  65
  66 // XInterface
  67 uno::Any SAL_CALL OFSStreamContainer::queryInterface( const uno::Type& rType )
  68         throw( uno::RuntimeException, std::exception )
  69 {
  70     uno::Any aReturn;
  71
  72     aReturn <<= ::cppu::queryInterface
  73                 (   rType
  74                     ,   static_cast<lang::XTypeProvider*> ( this )
  75                     ,   static_cast<io::XStream*> ( this )
  76                     ,   static_cast<embed::XExtendedStorageStream*> ( this )
  77                     ,   static_cast<lang::XComponent*> ( this ) );
  78
  79     if ( aReturn.hasValue() )
  80         return aReturn ;
  81
  82     if ( m_xSeekable.is() )
  83     {
  84         aReturn <<= ::cppu::queryInterface
  85                 (   rType
  86                     ,   static_cast<io::XSeekable*> ( this ) );
  87
  88         if ( aReturn.hasValue() )
  89             return aReturn ;
  90     }
  91
  92     if ( m_xInputStream.is() )
  93     {
  94         aReturn <<= ::cppu::queryInterface
  95                 (   rType
  96                     ,   static_cast<io::XInputStream*> ( this ) );
  97
  98         if ( aReturn.hasValue() )
  99             return aReturn ;
 100     }
 101     if ( m_xOutputStream.is() )
 102     {
 103         aReturn <<= ::cppu::queryInterface
 104                 (   rType
 105                     ,   static_cast<io::XOutputStream*> ( this ) );
 106
 107         if ( aReturn.hasValue() )
 108             return aReturn ;
 109     }
 110     if ( m_xTruncate.is() )
 111     {
 112         aReturn <<= ::cppu::queryInterface
 113                 (   rType
 114                     ,   static_cast<io::XTruncate*> ( this ) );
 115
 116         if ( aReturn.hasValue() )
 117             return aReturn ;
 118     }
 119     if ( m_xAsyncOutputMonitor.is() )
 120     {
 121         aReturn <<= ::cppu::queryInterface
 122                 (   rType
 123                     ,   static_cast<io::XAsyncOutputMonitor*> ( this ) );
 124
 125         if ( aReturn.hasValue() )
 126             return aReturn ;
 127     }
 128
 129     return OWeakObject::queryInterface( rType );
 130 }
 131
 132 void SAL_CALL OFSStreamContainer::acquire()
 133         throw()
 134 {
 135     OWeakObject::acquire();
 136 }
 137
 138 void SAL_CALL OFSStreamContainer::release()
 139         throw()
 140 {
 141     OWeakObject::release();
 142 }
 143
 144 //  XTypeProvider
 145 uno::Sequence< uno::Type > SAL_CALL OFSStreamContainer::getTypes()
 146         throw( uno::RuntimeException, std::exception )
 147 {
 148     if ( m_pTypeCollection == NULL )
 149     {
 150         ::osl::MutexGuard aGuard( m_aMutex );
 151
 152         if ( m_pTypeCollection == NULL )
 153         {
 154             ::cppu::OTypeCollection aTypeCollection
 155                                     (   cppu::UnoType<lang::XTypeProvider>::get()
 156                                     ,   cppu::UnoType<embed::XExtendedStorageStream>::get());
 157
 158             if ( m_xSeekable.is() )
 159                 aTypeCollection = ::cppu::OTypeCollection
 160                                     (   cppu::UnoType<io::XSeekable>::get(),
 161                                         aTypeCollection.getTypes() );
 162             if ( m_xInputStream.is() )
 163                 aTypeCollection = ::cppu::OTypeCollection
 164                                     (   cppu::UnoType<io::XInputStream>::get(),
 165                                         aTypeCollection.getTypes() );
 166
 167             if ( m_xOutputStream.is() )
 168                 aTypeCollection = ::cppu::OTypeCollection
 169                                     (   cppu::UnoType<io::XOutputStream>::get(),
 170                                         aTypeCollection.getTypes() );
 171             if ( m_xTruncate.is() )
 172                 aTypeCollection = ::cppu::OTypeCollection
 173                                     (   cppu::UnoType<io::XTruncate>::get(),
 174                                         aTypeCollection.getTypes() );
 175             if ( m_xAsyncOutputMonitor.is() )
 176                 aTypeCollection = ::cppu::OTypeCollection
 177                                     (   cppu::UnoType<io::XAsyncOutputMonitor>::get(),
 178                                         aTypeCollection.getTypes() );
 179
 180             m_pTypeCollection = new ::cppu::OTypeCollection( aTypeCollection );
 181         }
 182     }
 183     return m_pTypeCollection->getTypes() ;
 184 }
 185
 186 uno::Sequence< sal_Int8 > SAL_CALL OFSStreamContainer::getImplementationId()
 187         throw( uno::RuntimeException, std::exception )
 188 {
 189     return css::uno::Sequence<sal_Int8>();
 190 }
 191
 192 // XStream
 193 uno::Reference< io::XInputStream > SAL_CALL OFSStreamContainer::getInputStream()
 194         throw ( uno::RuntimeException, std::exception )
 195 {
 196     ::osl::MutexGuard aGuard( m_aMutex );
 197
 198     if ( m_bDisposed )
 199         throw lang::DisposedException();
 200
 201     if ( !m_xStream.is() )
 202         throw uno::RuntimeException();
 203
 204     if ( m_xInputStream.is() )
 205         return uno::Reference< io::XInputStream >( static_cast< io::XInputStream* >( this ) );
 206
 207     return uno::Reference< io::XInputStream >();
 208 }
 209
 210 uno::Reference< io::XOutputStream > SAL_CALL OFSStreamContainer::getOutputStream()
 211         throw ( uno::RuntimeException, std::exception )
 212 {
 213     ::osl::MutexGuard aGuard( m_aMutex );
 214
 215     if ( m_bDisposed )
 216         throw lang::DisposedException();
 217
 218     if ( !m_xStream.is() )
 219         throw uno::RuntimeException();
 220
 221     if ( m_xOutputStream.is() )
 222         return uno::Reference< io::XOutputStream >( static_cast< io::XOutputStream* >( this ) );
 223
 224     return uno::Reference< io::XOutputStream >();
 225 }
 226
 227 // XComponent
 228 void SAL_CALL OFSStreamContainer::dispose()
 229         throw ( uno::RuntimeException, std::exception )
 230 {
 231     ::osl::MutexGuard aGuard( m_aMutex );
 232
 233     if ( m_bDisposed )
 234         throw lang::DisposedException();
 235
 236     if ( !m_xStream.is() )
 237         throw uno::RuntimeException();
 238
 239     if ( m_xInputStream.is() && !m_bInputClosed )
 240     {
 241         m_xInputStream->closeInput();
 242         m_bInputClosed = true;
 243     }
 244
 245     if ( m_xOutputStream.is() && !m_bOutputClosed )
 246     {
 247         m_xOutputStream->closeOutput();
 248         m_bOutputClosed = true;
 249     }
 250
 251     if ( m_pListenersContainer )
 252     {
 253         lang::EventObject aSource( static_cast< ::cppu::OWeakObject*>( this ) );
 254         m_pListenersContainer->disposeAndClear( aSource );
 255     }
 256
 257     m_bDisposed = true;
 258 }
 259
 260 void SAL_CALL OFSStreamContainer::addEventListener( const uno::Reference< lang::XEventListener >& xListener )
 261         throw ( uno::RuntimeException, std::exception )
 262 {
 263     ::osl::MutexGuard aGuard( m_aMutex );
 264
 265     if ( m_bDisposed )
 266         throw lang::DisposedException();
 267
 268     if ( !m_pListenersContainer )
 269         m_pListenersContainer = new ::cppu::OInterfaceContainerHelper( m_aMutex );
 270
 271     m_pListenersContainer->addInterface( xListener );
 272 }
 273
 274 void SAL_CALL OFSStreamContainer::removeEventListener( const uno::Reference< lang::XEventListener >& xListener )
 275         throw ( uno::RuntimeException, std::exception )
 276 {
 277     ::osl::MutexGuard aGuard( m_aMutex );
 278
 279     if ( m_bDisposed )
 280         throw lang::DisposedException();
 281
 282     if ( m_pListenersContainer )
 283         m_pListenersContainer->removeInterface( xListener );
 284 }
 285
 286
 287 // XSeekable
 288 void SAL_CALL OFSStreamContainer::seek( sal_Int64 location )
 289         throw ( lang::IllegalArgumentException,
 290                 io::IOException,
 291                 uno::RuntimeException, std::exception )
 292 {
 293     ::osl::MutexGuard aGuard( m_aMutex );
 294
 295     if ( m_bDisposed )
 296         throw lang::DisposedException();
 297
 298     if ( !m_xStream.is() || !m_xSeekable.is() )
 299         throw uno::RuntimeException();
 300
 301     m_xSeekable->seek( location );
 302 }
 303
 304 sal_Int64 SAL_CALL OFSStreamContainer::getPosition()
 305         throw ( io::IOException,
 306                 uno::RuntimeException, std::exception )
 307 {
 308     ::osl::MutexGuard aGuard( m_aMutex );
 309
 310     if ( m_bDisposed )
 311         throw lang::DisposedException();
 312
 313     if ( !m_xStream.is() || !m_xSeekable.is() )
 314         throw uno::RuntimeException();
 315
 316     return m_xSeekable->getPosition();
 317 }
 318
 319 sal_Int64 SAL_CALL OFSStreamContainer::getLength()
 320         throw ( io::IOException,
 321                 uno::RuntimeException, std::exception )
 322 {
 323     ::osl::MutexGuard aGuard( m_aMutex );
 324
 325     if ( m_bDisposed )
 326         throw lang::DisposedException();
 327
 328     if ( !m_xStream.is() || !m_xSeekable.is() )
 329         throw uno::RuntimeException();
 330
 331     return m_xSeekable->getLength();
 332 }
 333
 334
 335 // XInputStream
 336 sal_Int32 SAL_CALL OFSStreamContainer::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
 337         throw( io::NotConnectedException,
 338                 io::BufferSizeExceededException,
 339                 io::IOException,
 340                 uno::RuntimeException, std::exception )
 341 {
 342     ::osl::MutexGuard aGuard( m_aMutex );
 343
 344     if ( m_bDisposed )
 345         throw lang::DisposedException();
 346
 347     if ( !m_xStream.is() || !m_xInputStream.is() )
 348         throw uno::RuntimeException();
 349
 350     return m_xInputStream->readBytes( aData, nBytesToRead );
 351 }
 352
 353 sal_Int32 SAL_CALL OFSStreamContainer::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
 354         throw( io::NotConnectedException,
 355                 io::BufferSizeExceededException,
 356                 io::IOException,
 357                 uno::RuntimeException, std::exception )
 358 {
 359     ::osl::MutexGuard aGuard( m_aMutex );
 360
 361     if ( m_bDisposed )
 362         throw lang::DisposedException();
 363
 364     if ( !m_xStream.is() || !m_xInputStream.is() )
 365         throw uno::RuntimeException();
 366
 367     return m_xInputStream->readSomeBytes( aData, nMaxBytesToRead );
 368 }
 369
 370 void SAL_CALL OFSStreamContainer::skipBytes( sal_Int32 nBytesToSkip )
 371         throw( io::NotConnectedException,
 372                 io::BufferSizeExceededException,
 373                 io::IOException,
 374                 uno::RuntimeException, std::exception )
 375 {
 376     ::osl::MutexGuard aGuard( m_aMutex );
 377
 378     if ( m_bDisposed )
 379         throw lang::DisposedException();
 380
 381     if ( !m_xStream.is() || !m_xInputStream.is() )
 382         throw uno::RuntimeException();
 383
 384     m_xInputStream->skipBytes( nBytesToSkip );
 385 }
 386
 387 sal_Int32 SAL_CALL OFSStreamContainer::available()
 388         throw( io::NotConnectedException,
 389                 io::IOException,
 390                 uno::RuntimeException, std::exception )
 391 {
 392     ::osl::MutexGuard aGuard( m_aMutex );
 393
 394     if ( m_bDisposed )
 395         throw lang::DisposedException();
 396
 397     if ( !m_xStream.is() || !m_xInputStream.is() )
 398         throw uno::RuntimeException();
 399
 400     return m_xInputStream->available();
 401 }
 402
 403 void SAL_CALL OFSStreamContainer::closeInput()
 404         throw( io::NotConnectedException,
 405                 io::IOException,
 406                 uno::RuntimeException, std::exception )
 407 {
 408     ::osl::MutexGuard aGuard( m_aMutex );
 409
 410     if ( m_bDisposed )
 411         throw lang::DisposedException();
 412
 413     if ( !m_xStream.is() || !m_xInputStream.is() )
 414         throw uno::RuntimeException();
 415
 416     if ( m_xInputStream.is() )
 417     {
 418         m_xInputStream->closeInput();
 419         m_bInputClosed = true;
 420     }
 421
 422     if ( m_bOutputClosed )
 423         dispose();
 424 }
 425
 426 // XOutputStream
 427 void SAL_CALL OFSStreamContainer::writeBytes( const uno::Sequence< sal_Int8 >& aData )
 428         throw ( io::NotConnectedException,
 429                 io::BufferSizeExceededException,
 430                 io::IOException,
 431                 uno::RuntimeException, std::exception )
 432 {
 433     ::osl::MutexGuard aGuard( m_aMutex );
 434
 435     if ( m_bDisposed )
 436         throw lang::DisposedException();
 437
 438     if ( !m_xStream.is() || !m_xOutputStream.is() )
 439         throw uno::RuntimeException();
 440
 441     return m_xOutputStream->writeBytes( aData );
 442 }
 443
 444 void SAL_CALL OFSStreamContainer::flush()
 445         throw ( io::NotConnectedException,
 446                 io::BufferSizeExceededException,
 447                 io::IOException,
 448                 uno::RuntimeException, std::exception )
 449 {
 450     ::osl::MutexGuard aGuard( m_aMutex );
 451
 452     if ( m_bDisposed )
 453         throw lang::DisposedException();
 454
 455     if ( !m_xStream.is() || !m_xOutputStream.is() )
 456         throw uno::RuntimeException();
 457
 458     return m_xOutputStream->flush();
 459 }
 460
 461 void SAL_CALL OFSStreamContainer::closeOutput()
 462         throw ( io::NotConnectedException,
 463                 io::BufferSizeExceededException,
 464                 io::IOException,
 465                 uno::RuntimeException, std::exception )
 466 {
 467     ::osl::MutexGuard aGuard( m_aMutex );
 468
 469     if ( m_bDisposed )
 470         throw lang::DisposedException();
 471
 472     if ( !m_xStream.is() || !m_xOutputStream.is() )
 473         throw uno::RuntimeException();
 474
 475     if ( m_xOutputStream.is() )
 476     {
 477         m_xOutputStream->closeOutput();
 478         m_bOutputClosed = true;
 479     }
 480
 481     if ( m_bInputClosed )
 482         dispose();
 483 }
 484
 485
 486 // XTruncate
 487 void SAL_CALL OFSStreamContainer::truncate()
 488         throw ( io::IOException,
 489                 uno::RuntimeException, std::exception )
 490 {
 491     ::osl::MutexGuard aGuard( m_aMutex );
 492
 493     if ( m_bDisposed )
 494         throw lang::DisposedException();
 495
 496     if ( !m_xStream.is() || !m_xTruncate.is() )
 497         throw uno::RuntimeException();
 498
 499     m_xTruncate->truncate();
 500 }
 501
 502
 503 // XAsyncOutputMonitor
 504 void SAL_CALL OFSStreamContainer::waitForCompletion()
 505         throw ( io::IOException,
 506                 uno::RuntimeException, std::exception )
 507 {
 508     ::osl::MutexGuard aGuard( m_aMutex );
 509
 510     if ( m_bDisposed )
 511         throw lang::DisposedException();
 512
 513     if ( !m_xStream.is() || !m_xAsyncOutputMonitor.is() )
 514         throw uno::RuntimeException();
 515
 516     m_xAsyncOutputMonitor->waitForCompletion();
 517 }
 518
 519
 520
 521 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */