INTEGRATION: CWS mav21 (1.1.2); FILE ADDED

2007/05/11 12:07:11 mav 1.1.2.1: #i77185# a possibility to wrap sequence with a stream using API

1 files changed, 259 insertions, 0 deletions

diff --git a/comphelper/source/streaming/seqinputstreamserv.cxx b/comphelper/source/streaming/seqinputstreamserv.cxx
new file mode 100644
index 000000000000..e00890a213ff
--- /dev/null
+++ b/comphelper/source/streaming/seqinputstreamserv.cxx
@@ -0,0 +1,259 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: seqinputstreamserv.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: hr $ $Date: 2007-06-26 16:11:17 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *    Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+// MARKER( update_precomp.py ): autogen include statement, do not remove
+#include "precompiled_comphelper.hxx"
+
+#include <sal/config.h>
+#include <osl/mutex.hxx>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/implementationentry.hxx>
+#include <cppuhelper/implbase3.hxx>
+#include <comphelper/seqstream.hxx>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/io/XSeekableInputStream.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/frame/DoubleInitializationException.hpp>
+
+
+using namespace ::com::sun::star;
+
+::rtl::OUString SAL_CALL SequenceInputStreamService_getImplementationName();
+uno::Sequence< ::rtl::OUString > SAL_CALL SequenceInputStreamService_getSupportedServiceNames();
+uno::Reference< uno::XInterface > SAL_CALL SequenceInputStreamService_createInstance( const uno::Reference< lang::XMultiServiceFactory > & xFactory ) SAL_THROW( (uno::Exception ) );
+
+
+namespace {
+
+class SequenceInputStreamService:
+    public ::cppu::WeakImplHelper3<
+        lang::XServiceInfo,
+        io::XSeekableInputStream,
+        lang::XInitialization>
+{
+public:
+    explicit SequenceInputStreamService( uno::Reference< lang::XMultiServiceFactory > const & xFactory );
+
+    // ::com::sun::star::lang::XServiceInfo:
+    virtual ::rtl::OUString SAL_CALL getImplementationName() throw ( uno::RuntimeException );
+    virtual ::sal_Bool SAL_CALL supportsService( const ::rtl::OUString & ServiceName ) throw ( uno::RuntimeException );
+    virtual uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames() throw ( uno::RuntimeException );
+
+    // ::com::sun::star::io::XInputStream:
+    virtual ::sal_Int32 SAL_CALL readBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException );
+    virtual ::sal_Int32 SAL_CALL readSomeBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nMaxBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException );
+    virtual void SAL_CALL skipBytes( ::sal_Int32 nBytesToSkip ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException );
+    virtual ::sal_Int32 SAL_CALL available() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException );
+    virtual void SAL_CALL closeInput() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException );
+
+    // ::com::sun::star::io::XSeekable:
+    virtual void SAL_CALL seek( ::sal_Int64 location ) throw ( uno::RuntimeException, lang::IllegalArgumentException, io::IOException );
+    virtual ::sal_Int64 SAL_CALL getPosition() throw ( uno::RuntimeException, io::IOException );
+    virtual ::sal_Int64 SAL_CALL getLength() throw ( uno::RuntimeException, io::IOException );
+
+    // ::com::sun::star::lang::XInitialization:
+    virtual void SAL_CALL initialize( const uno::Sequence< ::com::sun::star::uno::Any > & aArguments ) throw ( uno::RuntimeException, uno::Exception );
+
+private:
+    SequenceInputStreamService( SequenceInputStreamService & ); // not defined
+    void operator =( SequenceInputStreamService & ); // not defined
+
+    virtual ~SequenceInputStreamService() {}
+
+
+    ::osl::Mutex m_aMutex;
+    uno::Reference< lang::XMultiServiceFactory > m_xFactory;
+    sal_Bool m_bInitialized;
+    uno::Reference< io::XInputStream > m_xInputStream;
+    uno::Reference< io::XSeekable > m_xSeekable;
+};
+
+SequenceInputStreamService::SequenceInputStreamService( uno::Reference< lang::XMultiServiceFactory > const & xFactory )
+: m_xFactory( xFactory )
+, m_bInitialized( sal_False )
+{}
+
+// com.sun.star.uno.XServiceInfo:
+::rtl::OUString SAL_CALL SequenceInputStreamService::getImplementationName() throw ( uno::RuntimeException )
+{
+    return SequenceInputStreamService_getImplementationName();
+}
+
+::sal_Bool SAL_CALL SequenceInputStreamService::supportsService( ::rtl::OUString const & serviceName ) throw ( uno::RuntimeException )
+{
+    uno::Sequence< ::rtl::OUString > serviceNames = SequenceInputStreamService_getSupportedServiceNames();
+    for ( ::sal_Int32 i = 0; i < serviceNames.getLength(); ++i ) {
+        if ( serviceNames[i] == serviceName )
+            return sal_True;
+    }
+    return sal_False;
+}
+
+uno::Sequence< ::rtl::OUString > SAL_CALL SequenceInputStreamService::getSupportedServiceNames() throw ( uno::RuntimeException )
+{
+    return SequenceInputStreamService_getSupportedServiceNames();
+}
+
+// ::com::sun::star::io::XInputStream:
+::sal_Int32 SAL_CALL SequenceInputStreamService::readBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xInputStream.is() )
+        throw io::NotConnectedException();
+
+    return m_xInputStream->readBytes( aData, nBytesToRead );
+}
+
+::sal_Int32 SAL_CALL SequenceInputStreamService::readSomeBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nMaxBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xInputStream.is() )
+        throw io::NotConnectedException();
+
+    return m_xInputStream->readSomeBytes( aData, nMaxBytesToRead );
+}
+
+void SAL_CALL SequenceInputStreamService::skipBytes( ::sal_Int32 nBytesToSkip ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xInputStream.is() )
+        throw io::NotConnectedException();
+
+    return m_xInputStream->skipBytes( nBytesToSkip );
+}
+
+::sal_Int32 SAL_CALL SequenceInputStreamService::available() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xInputStream.is() )
+        throw io::NotConnectedException();
+
+    return m_xInputStream->available();
+}
+
+void SAL_CALL SequenceInputStreamService::closeInput() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xInputStream.is() )
+        throw io::NotConnectedException();
+
+    m_xInputStream->closeInput();
+    m_xInputStream = uno::Reference< io::XInputStream >();
+    m_xSeekable = uno::Reference< io::XSeekable >();
+}
+
+// ::com::sun::star::io::XSeekable:
+void SAL_CALL SequenceInputStreamService::seek( ::sal_Int64 location ) throw ( uno::RuntimeException, lang::IllegalArgumentException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xSeekable.is() )
+        throw io::NotConnectedException();
+
+    m_xSeekable->seek( location );
+}
+
+::sal_Int64 SAL_CALL SequenceInputStreamService::getPosition() throw ( uno::RuntimeException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xSeekable.is() )
+        throw io::NotConnectedException();
+
+    return m_xSeekable->getPosition();
+}
+
+::sal_Int64 SAL_CALL SequenceInputStreamService::getLength() throw ( uno::RuntimeException, io::IOException )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( !m_xSeekable.is() )
+        throw io::NotConnectedException();
+
+    return m_xSeekable->getLength();
+}
+
+// ::com::sun::star::lang::XInitialization:
+void SAL_CALL SequenceInputStreamService::initialize( const uno::Sequence< ::com::sun::star::uno::Any > & aArguments ) throw ( uno::RuntimeException, uno::Exception )
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+    if ( m_bInitialized )
+        throw frame::DoubleInitializationException();
+
+    if ( aArguments.getLength() != 1 )
+        throw lang::IllegalArgumentException( ::rtl::OUString::createFromAscii( "Wrong number of arguments!\n" ),
+                                            uno::Reference< uno::XInterface >( static_cast< ::cppu::OWeakObject* >(this) ),
+                                            1 );
+
+    uno::Sequence< sal_Int8 > aSeq;
+    if ( aArguments[0] >>= aSeq )
+    {
+        uno::Reference< io::XInputStream > xInputStream(
+                        static_cast< ::cppu::OWeakObject* >( new ::comphelper::SequenceInputStream( aSeq ) ),
+                        uno::UNO_QUERY_THROW );
+        uno::Reference< io::XSeekable > xSeekable( xInputStream, uno::UNO_QUERY_THROW );
+        m_xInputStream = xInputStream;
+        m_xSeekable = xSeekable;
+        m_bInitialized = sal_True;
+    }
+    else
+        throw lang::IllegalArgumentException( ::rtl::OUString::createFromAscii( "Unexpected type of argument!\n" ),
+                                            uno::Reference< uno::XInterface >( static_cast< ::cppu::OWeakObject* >(this) ),
+                                            1 );
+}
+
+} // anonymous namespace
+
+::rtl::OUString SAL_CALL SequenceInputStreamService_getImplementationName() {
+    return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
+        "com.sun.star.comp.SequenceInputStreamService" ) );
+}
+
+uno::Sequence< ::rtl::OUString > SAL_CALL SequenceInputStreamService_getSupportedServiceNames()
+{
+    uno::Sequence< ::rtl::OUString > s( 1 );
+    s[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
+        "com.sun.star.io.SequenceInputStream" ) );
+    return s;
+}
+
+uno::Reference< uno::XInterface > SAL_CALL SequenceInputStreamService_createInstance(
+    const uno::Reference< lang::XMultiServiceFactory > & xFactory )
+        SAL_THROW( (uno::Exception ) )
+{
+    return static_cast< ::cppu::OWeakObject * >( new SequenceInputStreamService( xFactory ) );
+}
+
+
+
+
+