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
  21 #include "ostreamcontainer.hxx"
  22
  23
  24 using namespace ::com::sun::star;
  25
  26 OFSStreamContainer::OFSStreamContainer( const uno::Reference < io::XStream >& xStream )
  27 : m_bDisposed( false )
  28 , m_bInputClosed( false )
  29 , m_bOutputClosed( false )
  30 , m_pListenersContainer( NULL )
  31 , m_pTypeCollection( NULL )
  32 {
  33     try
  34     {
  35         m_xStream = xStream;
  36         if ( !m_xStream.is() )
  37             throw uno::RuntimeException();
  38
  39         m_xSeekable = uno::Reference< io::XSeekable >( xStream, uno::UNO_QUERY );
  40         m_xInputStream = xStream->getInputStream();
  41         m_xOutputStream = xStream->getOutputStream();
  42         m_xTruncate = uno::Reference< io::XTruncate >( m_xOutputStream, uno::UNO_QUERY );
  43         m_xAsyncOutputMonitor = uno::Reference< io::XAsyncOutputMonitor >( m_xOutputStream, uno::UNO_QUERY );
  44     }
  45     catch( uno::Exception& )
  46     {
  47         m_xStream = uno::Reference< io::XStream >();
  48         m_xSeekable = uno::Reference< io::XSeekable >();
  49         m_xInputStream = uno::Reference< io::XInputStream >();
  50         m_xOutputStream = uno::Reference< io::XOutputStream >();
  51         m_xTruncate = uno::Reference< io::XTruncate >();
  52         m_xAsyncOutputMonitor = uno::Reference< io::XAsyncOutputMonitor >();
  53     }
  54 }
  55
  56 OFSStreamContainer::~OFSStreamContainer()
  57 {
  58     if ( m_pListenersContainer )
  59     {
  60         delete m_pListenersContainer;
  61         m_pListenersContainer = NULL;
  62     }
  63 }
  64
  65 // XInterface
  66 uno::Any SAL_CALL OFSStreamContainer::queryInterface( const uno::Type& rType )
  67         throw( uno::RuntimeException )
  68 {
  69     uno::Any aReturn;
  70
  71     aReturn <<= ::cppu::queryInterface
  72                 (   rType
  73                     ,   static_cast<lang::XTypeProvider*> ( this )
  74                     ,   static_cast<io::XStream*> ( this )
  75                     ,   static_cast<embed::XExtendedStorageStream*> ( this )
  76                     ,   static_cast<lang::XComponent*> ( this ) );
  77
  78     if ( aReturn.hasValue() == sal_True )
  79         return aReturn ;
  80
  81     if ( m_xSeekable.is() )
  82     {
  83         aReturn <<= ::cppu::queryInterface
  84                 (   rType
  85                     ,   static_cast<io::XSeekable*> ( this ) );
  86
  87         if ( aReturn.hasValue() == sal_True )
  88             return aReturn ;
  89     }
  90
  91     if ( m_xInputStream.is() )
  92     {
  93         aReturn <<= ::cppu::queryInterface
  94                 (   rType
  95                     ,   static_cast<io::XInputStream*> ( this ) );
  96
  97         if ( aReturn.hasValue() == sal_True )
  98             return aReturn ;
  99     }
 100     if ( m_xOutputStream.is() )
 101     {
 102         aReturn <<= ::cppu::queryInterface
 103                 (   rType
 104                     ,   static_cast<io::XOutputStream*> ( this ) );
 105
 106         if ( aReturn.hasValue() == sal_True )
 107             return aReturn ;
 108     }
 109     if ( m_xTruncate.is() )
 110     {
 111         aReturn <<= ::cppu::queryInterface
 112                 (   rType
 113                     ,   static_cast<io::XTruncate*> ( this ) );
 114
 115         if ( aReturn.hasValue() == sal_True )
 116             return aReturn ;
 117     }
 118     if ( m_xAsyncOutputMonitor.is() )
 119     {
 120         aReturn <<= ::cppu::queryInterface
 121                 (   rType
 122                     ,   static_cast<io::XAsyncOutputMonitor*> ( this ) );
 123
 124         if ( aReturn.hasValue() == sal_True )
 125             return aReturn ;
 126     }
 127
 128     return OWeakObject::queryInterface( rType );
 129 }
 130
 131 void SAL_CALL OFSStreamContainer::acquire()
 132         throw()
 133 {
 134     OWeakObject::acquire();
 135 }
 136
 137 void SAL_CALL OFSStreamContainer::release()
 138         throw()
 139 {
 140     OWeakObject::release();
 141 }
 142
 143 //  XTypeProvider
 144 uno::Sequence< uno::Type > SAL_CALL OFSStreamContainer::getTypes()
 145         throw( uno::RuntimeException )
 146 {
 147     if ( m_pTypeCollection == NULL )
 148     {
 149         ::osl::MutexGuard aGuard( m_aMutex );
 150
 151         if ( m_pTypeCollection == NULL )
 152         {
 153             ::cppu::OTypeCollection aTypeCollection
 154                                     (   ::getCppuType( ( const uno::Reference< lang::XTypeProvider >* )NULL )
 155                                     ,   ::getCppuType( ( const uno::Reference< embed::XExtendedStorageStream >* )NULL ) );
 156
 157             if ( m_xSeekable.is() )
 158                 aTypeCollection = ::cppu::OTypeCollection
 159                                     (   ::getCppuType( ( const uno::Reference< io::XSeekable >* )NULL ),
 160                                         aTypeCollection.getTypes() );
 161             if ( m_xInputStream.is() )
 162                 aTypeCollection = ::cppu::OTypeCollection
 163                                     (   ::getCppuType( ( const uno::Reference< io::XInputStream >* )NULL ),
 164                                         aTypeCollection.getTypes() );
 165
 166             if ( m_xOutputStream.is() )
 167                 aTypeCollection = ::cppu::OTypeCollection
 168                                     (   ::getCppuType( ( const uno::Reference< io::XOutputStream >* )NULL ),
 169                                         aTypeCollection.getTypes() );
 170             if ( m_xTruncate.is() )
 171                 aTypeCollection = ::cppu::OTypeCollection
 172                                     (   ::getCppuType( ( const uno::Reference< io::XTruncate >* )NULL ),
 173                                         aTypeCollection.getTypes() );
 174             if ( m_xAsyncOutputMonitor.is() )
 175                 aTypeCollection = ::cppu::OTypeCollection
 176                                     (   ::getCppuType( ( const uno::Reference< io::XAsyncOutputMonitor >* )NULL ),
 177                                         aTypeCollection.getTypes() );
 178
 179             m_pTypeCollection = new ::cppu::OTypeCollection( aTypeCollection );
 180         }
 181     }
 182     return m_pTypeCollection->getTypes() ;
 183 }
 184
 185 uno::Sequence< sal_Int8 > SAL_CALL OFSStreamContainer::getImplementationId()
 186         throw( uno::RuntimeException )
 187 {
 188     static ::cppu::OImplementationId* pID = NULL ;
 189
 190     if ( pID == NULL )
 191     {
 192         ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() ) ;
 193
 194         if ( pID == NULL )
 195         {
 196             static ::cppu::OImplementationId aID( sal_False ) ;
 197             pID = &aID ;
 198         }
 199     }
 200
 201     return pID->getImplementationId() ;
 202 }
 203
 204 // XStream
 205 uno::Reference< io::XInputStream > SAL_CALL OFSStreamContainer::getInputStream()
 206         throw ( uno::RuntimeException )
 207 {
 208     ::osl::MutexGuard aGuard( m_aMutex );
 209
 210     if ( m_bDisposed )
 211         throw lang::DisposedException();
 212
 213     if ( !m_xStream.is() )
 214         throw uno::RuntimeException();
 215
 216     if ( m_xInputStream.is() )
 217         return uno::Reference< io::XInputStream >( static_cast< io::XInputStream* >( this ) );
 218
 219     return uno::Reference< io::XInputStream >();
 220 }
 221
 222 uno::Reference< io::XOutputStream > SAL_CALL OFSStreamContainer::getOutputStream()
 223         throw ( uno::RuntimeException )
 224 {
 225     ::osl::MutexGuard aGuard( m_aMutex );
 226
 227     if ( m_bDisposed )
 228         throw lang::DisposedException();
 229
 230     if ( !m_xStream.is() )
 231         throw uno::RuntimeException();
 232
 233     if ( m_xOutputStream.is() )
 234         return uno::Reference< io::XOutputStream >( static_cast< io::XOutputStream* >( this ) );
 235
 236     return uno::Reference< io::XOutputStream >();
 237 }
 238
 239 // XComponent
 240 void SAL_CALL OFSStreamContainer::dispose()
 241         throw ( uno::RuntimeException )
 242 {
 243     ::osl::MutexGuard aGuard( m_aMutex );
 244
 245     if ( m_bDisposed )
 246         throw lang::DisposedException();
 247
 248     if ( !m_xStream.is() )
 249         throw uno::RuntimeException();
 250
 251     if ( m_xInputStream.is() && !m_bInputClosed )
 252     {
 253         m_xInputStream->closeInput();
 254         m_bInputClosed = true;
 255     }
 256
 257     if ( m_xOutputStream.is() && !m_bOutputClosed )
 258     {
 259         m_xOutputStream->closeOutput();
 260         m_bOutputClosed = true;
 261     }
 262
 263     if ( m_pListenersContainer )
 264     {
 265         lang::EventObject aSource( static_cast< ::cppu::OWeakObject*>( this ) );
 266         m_pListenersContainer->disposeAndClear( aSource );
 267     }
 268
 269     m_bDisposed = true;
 270 }
 271
 272 void SAL_CALL OFSStreamContainer::addEventListener( const uno::Reference< lang::XEventListener >& xListener )
 273         throw ( uno::RuntimeException )
 274 {
 275     ::osl::MutexGuard aGuard( m_aMutex );
 276
 277     if ( m_bDisposed )
 278         throw lang::DisposedException();
 279
 280     if ( !m_pListenersContainer )
 281         m_pListenersContainer = new ::cppu::OInterfaceContainerHelper( m_aMutex );
 282
 283     m_pListenersContainer->addInterface( xListener );
 284 }
 285
 286 void SAL_CALL OFSStreamContainer::removeEventListener( const uno::Reference< lang::XEventListener >& xListener )
 287         throw ( uno::RuntimeException )
 288 {
 289     ::osl::MutexGuard aGuard( m_aMutex );
 290
 291     if ( m_bDisposed )
 292         throw lang::DisposedException();
 293
 294     if ( m_pListenersContainer )
 295         m_pListenersContainer->removeInterface( xListener );
 296 }
 297
 298
 299 // XSeekable
 300 void SAL_CALL OFSStreamContainer::seek( sal_Int64 location )
 301         throw ( lang::IllegalArgumentException,
 302                 io::IOException,
 303                 uno::RuntimeException )
 304 {
 305     ::osl::MutexGuard aGuard( m_aMutex );
 306
 307     if ( m_bDisposed )
 308         throw lang::DisposedException();
 309
 310     if ( !m_xStream.is() || !m_xSeekable.is() )
 311         throw uno::RuntimeException();
 312
 313     m_xSeekable->seek( location );
 314 }
 315
 316 sal_Int64 SAL_CALL OFSStreamContainer::getPosition()
 317         throw ( io::IOException,
 318                 uno::RuntimeException )
 319 {
 320     ::osl::MutexGuard aGuard( m_aMutex );
 321
 322     if ( m_bDisposed )
 323         throw lang::DisposedException();
 324
 325     if ( !m_xStream.is() || !m_xSeekable.is() )
 326         throw uno::RuntimeException();
 327
 328     return m_xSeekable->getPosition();
 329 }
 330
 331 sal_Int64 SAL_CALL OFSStreamContainer::getLength()
 332         throw ( io::IOException,
 333                 uno::RuntimeException )
 334 {
 335     ::osl::MutexGuard aGuard( m_aMutex );
 336
 337     if ( m_bDisposed )
 338         throw lang::DisposedException();
 339
 340     if ( !m_xStream.is() || !m_xSeekable.is() )
 341         throw uno::RuntimeException();
 342
 343     return m_xSeekable->getLength();
 344 }
 345
 346
 347 // XInputStream
 348 sal_Int32 SAL_CALL OFSStreamContainer::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
 349         throw( io::NotConnectedException,
 350                 io::BufferSizeExceededException,
 351                 io::IOException,
 352                 uno::RuntimeException )
 353 {
 354     ::osl::MutexGuard aGuard( m_aMutex );
 355
 356     if ( m_bDisposed )
 357         throw lang::DisposedException();
 358
 359     if ( !m_xStream.is() || !m_xInputStream.is() )
 360         throw uno::RuntimeException();
 361
 362     return m_xInputStream->readBytes( aData, nBytesToRead );
 363 }
 364
 365 sal_Int32 SAL_CALL OFSStreamContainer::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
 366         throw( io::NotConnectedException,
 367                 io::BufferSizeExceededException,
 368                 io::IOException,
 369                 uno::RuntimeException )
 370 {
 371     ::osl::MutexGuard aGuard( m_aMutex );
 372
 373     if ( m_bDisposed )
 374         throw lang::DisposedException();
 375
 376     if ( !m_xStream.is() || !m_xInputStream.is() )
 377         throw uno::RuntimeException();
 378
 379     return m_xInputStream->readSomeBytes( aData, nMaxBytesToRead );
 380 }
 381
 382 void SAL_CALL OFSStreamContainer::skipBytes( sal_Int32 nBytesToSkip )
 383         throw( io::NotConnectedException,
 384                 io::BufferSizeExceededException,
 385                 io::IOException,
 386                 uno::RuntimeException )
 387 {
 388     ::osl::MutexGuard aGuard( m_aMutex );
 389
 390     if ( m_bDisposed )
 391         throw lang::DisposedException();
 392
 393     if ( !m_xStream.is() || !m_xInputStream.is() )
 394         throw uno::RuntimeException();
 395
 396     m_xInputStream->skipBytes( nBytesToSkip );
 397 }
 398
 399 sal_Int32 SAL_CALL OFSStreamContainer::available()
 400         throw( io::NotConnectedException,
 401                 io::IOException,
 402                 uno::RuntimeException )
 403 {
 404     ::osl::MutexGuard aGuard( m_aMutex );
 405
 406     if ( m_bDisposed )
 407         throw lang::DisposedException();
 408
 409     if ( !m_xStream.is() || !m_xInputStream.is() )
 410         throw uno::RuntimeException();
 411
 412     return m_xInputStream->available();
 413 }
 414
 415 void SAL_CALL OFSStreamContainer::closeInput()
 416         throw( io::NotConnectedException,
 417                 io::IOException,
 418                 uno::RuntimeException )
 419 {
 420     ::osl::MutexGuard aGuard( m_aMutex );
 421
 422     if ( m_bDisposed )
 423         throw lang::DisposedException();
 424
 425     if ( !m_xStream.is() || !m_xInputStream.is() )
 426         throw uno::RuntimeException();
 427
 428     if ( m_xInputStream.is() )
 429     {
 430         m_xInputStream->closeInput();
 431         m_bInputClosed = true;
 432     }
 433
 434     if ( m_bOutputClosed )
 435         dispose();
 436 }
 437
 438 // XOutputStream
 439 void SAL_CALL OFSStreamContainer::writeBytes( const uno::Sequence< sal_Int8 >& aData )
 440         throw ( io::NotConnectedException,
 441                 io::BufferSizeExceededException,
 442                 io::IOException,
 443                 uno::RuntimeException )
 444 {
 445     ::osl::MutexGuard aGuard( m_aMutex );
 446
 447     if ( m_bDisposed )
 448         throw lang::DisposedException();
 449
 450     if ( !m_xStream.is() || !m_xOutputStream.is() )
 451         throw uno::RuntimeException();
 452
 453     return m_xOutputStream->writeBytes( aData );
 454 }
 455
 456 void SAL_CALL OFSStreamContainer::flush()
 457         throw ( io::NotConnectedException,
 458                 io::BufferSizeExceededException,
 459                 io::IOException,
 460                 uno::RuntimeException )
 461 {
 462     ::osl::MutexGuard aGuard( m_aMutex );
 463
 464     if ( m_bDisposed )
 465         throw lang::DisposedException();
 466
 467     if ( !m_xStream.is() || !m_xOutputStream.is() )
 468         throw uno::RuntimeException();
 469
 470     return m_xOutputStream->flush();
 471 }
 472
 473 void SAL_CALL OFSStreamContainer::closeOutput()
 474         throw ( io::NotConnectedException,
 475                 io::BufferSizeExceededException,
 476                 io::IOException,
 477                 uno::RuntimeException )
 478 {
 479     ::osl::MutexGuard aGuard( m_aMutex );
 480
 481     if ( m_bDisposed )
 482         throw lang::DisposedException();
 483
 484     if ( !m_xStream.is() || !m_xOutputStream.is() )
 485         throw uno::RuntimeException();
 486
 487     if ( m_xOutputStream.is() )
 488     {
 489         m_xOutputStream->closeOutput();
 490         m_bOutputClosed = true;
 491     }
 492
 493     if ( m_bInputClosed )
 494         dispose();
 495 }
 496
 497
 498 // XTruncate
 499 void SAL_CALL OFSStreamContainer::truncate()
 500         throw ( io::IOException,
 501                 uno::RuntimeException )
 502 {
 503     ::osl::MutexGuard aGuard( m_aMutex );
 504
 505     if ( m_bDisposed )
 506         throw lang::DisposedException();
 507
 508     if ( !m_xStream.is() || !m_xTruncate.is() )
 509         throw uno::RuntimeException();
 510
 511     m_xTruncate->truncate();
 512 }
 513
 514
 515 // XAsyncOutputMonitor
 516 void SAL_CALL OFSStreamContainer::waitForCompletion()
 517         throw ( io::IOException,
 518                 uno::RuntimeException )
 519 {
 520     ::osl::MutexGuard aGuard( m_aMutex );
 521
 522     if ( m_bDisposed )
 523         throw lang::DisposedException();
 524
 525     if ( !m_xStream.is() || !m_xAsyncOutputMonitor.is() )
 526         throw uno::RuntimeException();
 527
 528     m_xAsyncOutputMonitor->waitForCompletion();
 529 }
 530
 531
 532
 533 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */