comphelper/source/streaming/seqoutputstreamserv.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 <sal/config.h>
  21
  22 #include <comphelper_module.hxx>
  23 #include <comphelper_services.hxx>
  24
  25 #include <osl/mutex.hxx>
  26 #include <cppuhelper/factory.hxx>
  27 #include <cppuhelper/implementationentry.hxx>
  28 #include <cppuhelper/implbase.hxx>
  29 #include <cppuhelper/supportsservice.hxx>
  30 #include <comphelper/seqstream.hxx>
  31 #include <com/sun/star/lang/XServiceInfo.hpp>
  32 #include <com/sun/star/io/NotConnectedException.hpp>
  33 #include <com/sun/star/io/XSequenceOutputStream.hpp>
  34 #include <com/sun/star/uno/XComponentContext.hpp>
  35
  36 using namespace ::com::sun::star;
  37
  38
  39 namespace {
  40
  41 class SequenceOutputStreamService:
  42     public cppu::WeakImplHelper<lang::XServiceInfo, io::XSequenceOutputStream>
  43 {
  44 public:
  45     explicit SequenceOutputStreamService();
  46
  47     // noncopyable
  48     SequenceOutputStreamService(const SequenceOutputStreamService&) = delete;
  49     const SequenceOutputStreamService& operator=(const SequenceOutputStreamService&) = delete;
  50
  51     // css::lang::XServiceInfo:
  52     virtual OUString SAL_CALL getImplementationName() override;
  53     virtual sal_Bool SAL_CALL supportsService( const OUString & ServiceName ) override;
  54     virtual uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
  55
  56     // css::io::XOutputStream:
  57     virtual void SAL_CALL writeBytes( const uno::Sequence< ::sal_Int8 > & aData ) override;
  58     virtual void SAL_CALL flush() override;
  59     virtual void SAL_CALL closeOutput() override;
  60
  61     // css::io::XSequenceOutputStream:
  62     virtual uno::Sequence< ::sal_Int8 > SAL_CALL getWrittenBytes(  ) override;
  63
  64 private:
  65     virtual ~SequenceOutputStreamService() override {};
  66
  67
  68     ::osl::Mutex m_aMutex;
  69     uno::Reference< io::XOutputStream > m_xOutputStream;
  70     uno::Sequence< ::sal_Int8 > m_aSequence;
  71 };
  72 SequenceOutputStreamService::SequenceOutputStreamService()
  73 {
  74     m_xOutputStream.set( static_cast < ::cppu::OWeakObject* >( new ::comphelper::OSequenceOutputStream( m_aSequence ) ), uno::UNO_QUERY_THROW );
  75 }
  76
  77 // com.sun.star.uno.XServiceInfo:
  78 OUString SAL_CALL SequenceOutputStreamService::getImplementationName()
  79 {
  80     return OUString("com.sun.star.comp.SequenceOutputStreamService");
  81 }
  82
  83 sal_Bool SAL_CALL SequenceOutputStreamService::supportsService( OUString const & serviceName )
  84 {
  85     return cppu::supportsService(this, serviceName);
  86 }
  87
  88 uno::Sequence< OUString > SAL_CALL SequenceOutputStreamService::getSupportedServiceNames()
  89 {
  90     uno::Sequence<OUString> s { "com.sun.star.io.SequenceOutputStream" };
  91     return s;
  92 }
  93
  94 // css::io::XOutputStream:
  95 void SAL_CALL SequenceOutputStreamService::writeBytes( const uno::Sequence< ::sal_Int8 > & aData )
  96 {
  97     ::osl::MutexGuard aGuard( m_aMutex );
  98     if ( !m_xOutputStream.is() )
  99         throw io::NotConnectedException();
 100
 101     m_xOutputStream->writeBytes( aData );
 102     m_aSequence = aData;
 103 }
 104
 105 void SAL_CALL SequenceOutputStreamService::flush()
 106 {
 107     ::osl::MutexGuard aGuard( m_aMutex );
 108     if ( !m_xOutputStream.is() )
 109         throw io::NotConnectedException();
 110
 111     m_xOutputStream->flush();
 112 };
 113
 114 void SAL_CALL SequenceOutputStreamService::closeOutput()
 115 {
 116     ::osl::MutexGuard aGuard( m_aMutex );
 117     if ( !m_xOutputStream.is() )
 118         throw io::NotConnectedException();
 119
 120     m_xOutputStream->closeOutput();
 121     m_xOutputStream.clear();
 122 }
 123
 124 // css::io::XSequenceOutputStream:
 125 uno::Sequence< ::sal_Int8 > SAL_CALL SequenceOutputStreamService::getWrittenBytes()
 126 {
 127     ::osl::MutexGuard aGuard( m_aMutex );
 128     if ( !m_xOutputStream.is() )
 129         throw io::NotConnectedException();
 130
 131     m_xOutputStream->flush();
 132     return m_aSequence;
 133 }
 134
 135 } // anonymous namespace
 136
 137 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
 138 com_sun_star_comp_SequenceOutputStreamService(
 139     css::uno::XComponentContext *,
 140     css::uno::Sequence<css::uno::Any> const &)
 141 {
 142     return cppu::acquire(new SequenceOutputStreamService());
 143 }
 144
 145 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */