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office-gobmx/svtools/source/misc/templatefoldercache.cxx
Norbert Thiebaud ac33b825d1 remove include of pch header from svtools
2011-11-27 13:24:31 -06:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <svtools/templatefoldercache.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <unotools/localfilehelper.hxx>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/sdbc/XResultSet.hpp>
#include <com/sun/star/ucb/XDynamicResultSet.hpp>
#include <com/sun/star/sdbc/XRow.hpp>
#include <com/sun/star/ucb/XContentAccess.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/util/XOfficeInstallationDirectories.hpp>
#include <ucbhelper/content.hxx>
#include <rtl/ref.hxx>
#include <salhelper/simplereferenceobject.hxx>
#include <tools/urlobj.hxx>
#include <tools/debug.hxx>
#include <unotools/pathoptions.hxx>
#include "comphelper/processfactory.hxx"
#include <vector>
#include <list>
#include <functional>
#include <algorithm>
//.........................................................................
namespace svt
{
//.........................................................................
using namespace ::utl;
using namespace ::com::sun::star;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::ucb;
using namespace ::com::sun::star::uno;
//=====================================================================
//= helpers
//=====================================================================
//---------------------------------------------------------------------
SvStream& operator << ( SvStream& _rStorage, const util::DateTime& _rDate )
{
_rStorage << _rDate.HundredthSeconds;
_rStorage << _rDate.Seconds;
_rStorage << _rDate.Minutes;
_rStorage << _rDate.Hours;
_rStorage << _rDate.Day;
_rStorage << _rDate.Month;
_rStorage << _rDate.Year;
return _rStorage;
}
//---------------------------------------------------------------------
SvStream& operator >> ( SvStream& _rStorage, util::DateTime& _rDate )
{
_rStorage >> _rDate.HundredthSeconds;
_rStorage >> _rDate.Seconds;
_rStorage >> _rDate.Minutes;
_rStorage >> _rDate.Hours;
_rStorage >> _rDate.Day;
_rStorage >> _rDate.Month;
_rStorage >> _rDate.Year;
return _rStorage;
}
//---------------------------------------------------------------------
sal_Bool operator == ( const util::DateTime& _rLHS, const util::DateTime& _rRHS )
{
return _rLHS.HundredthSeconds == _rRHS.HundredthSeconds
&& _rLHS.Seconds == _rRHS.Seconds
&& _rLHS.Minutes == _rRHS.Minutes
&& _rLHS.Hours == _rRHS.Hours
&& _rLHS.Day == _rRHS.Day
&& _rLHS.Month == _rRHS.Month
&& _rLHS.Year == _rRHS.Year;
}
//---------------------------------------------------------------------
sal_Bool operator != ( const util::DateTime& _rLHS, const util::DateTime& _rRHS )
{
return !( _rLHS == _rRHS );
}
//=====================================================================
//= TemplateContent
//=====================================================================
struct TemplateContent;
typedef ::std::vector< ::rtl::Reference< TemplateContent > > TemplateFolderContent;
typedef TemplateFolderContent::const_iterator ConstFolderIterator;
typedef TemplateFolderContent::iterator FolderIterator;
/** a struct describing one content in one of the template dirs (or at least it's relevant aspects)
*/
struct TemplateContent : public ::salhelper::SimpleReferenceObject
{
public:
private:
INetURLObject m_aURL;
String m_sLocalName; // redundant - last segment of m_aURL
util::DateTime m_aLastModified; // date of last modification as reported by UCP
TemplateFolderContent m_aSubContents; // sorted (by name) list of the children
private:
inline void implResetDate( )
{
m_aLastModified.HundredthSeconds = m_aLastModified.Seconds = m_aLastModified.Minutes = m_aLastModified.Hours = 0;
m_aLastModified.Day = m_aLastModified.Month = m_aLastModified.Year = 0;
}
private:
~TemplateContent();
public:
TemplateContent( const INetURLObject& _rURL );
// attribute access
inline String getName( ) const { return m_sLocalName; }
inline String getURL( ) const { return m_aURL.GetMainURL( INetURLObject::DECODE_TO_IURI ); }
inline void setModDate( const util::DateTime& _rDate ) { m_aLastModified = _rDate; }
inline const util::DateTime& getModDate( ) const { return m_aLastModified; }
inline TemplateFolderContent& getSubContents() { return m_aSubContents; }
inline const TemplateFolderContent& getSubContents() const { return m_aSubContents; }
inline ConstFolderIterator begin() const { return m_aSubContents.begin(); }
inline ConstFolderIterator end() const { return m_aSubContents.end(); }
inline TemplateFolderContent::size_type
size() const { return m_aSubContents.size(); }
inline void push_back( const ::rtl::Reference< TemplateContent >& _rxNewElement )
{ m_aSubContents.push_back( _rxNewElement ); }
};
//---------------------------------------------------------------------
DBG_NAME( TemplateContent )
//---------------------------------------------------------------------
TemplateContent::TemplateContent( const INetURLObject& _rURL )
:m_aURL( _rURL )
{
DBG_CTOR( TemplateContent, NULL );
DBG_ASSERT( INET_PROT_NOT_VALID != m_aURL.GetProtocol(), "TemplateContent::TemplateContent: invalid URL!" );
m_sLocalName = m_aURL.getName();
implResetDate();
}
//---------------------------------------------------------------------
TemplateContent::~TemplateContent()
{
DBG_DTOR( TemplateContent, NULL );
}
//=====================================================================
//= stl helpers
//=====================================================================
//---------------------------------------------------------------------
/// compares two TemplateContent by URL
struct TemplateContentURLLess
:public ::std::binary_function < ::rtl::Reference< TemplateContent >
, ::rtl::Reference< TemplateContent >
, bool
>
{
bool operator() ( const ::rtl::Reference< TemplateContent >& _rxLHS, const ::rtl::Reference< TemplateContent >& _rxRHS ) const
{
return _rxLHS->getURL() < _rxRHS->getURL()
? true
: false;
}
};
//---------------------------------------------------------------------
/// sorts the sib contents of a TemplateFolderContent
struct SubContentSort : public ::std::unary_function< ::rtl::Reference< TemplateContent >, void >
{
void operator() ( TemplateFolderContent& _rFolder ) const
{
// sort the directory by name
::std::sort(
_rFolder.begin(),
_rFolder.end(),
TemplateContentURLLess()
);
// sort the sub directories by name
::std::for_each(
_rFolder.begin(),
_rFolder.end(),
*this
);
}
void operator() ( const ::rtl::Reference< TemplateContent >& _rxContent ) const
{
if ( _rxContent.is() && _rxContent->size() )
{
operator()( _rxContent->getSubContents() );
}
}
};
//---------------------------------------------------------------------
/** does a deep compare of two template contents
*/
struct TemplateContentEqual
:public ::std::binary_function < ::rtl::Reference< TemplateContent >
, ::rtl::Reference< TemplateContent >
, bool
>
{
//.................................................................
bool operator() (const ::rtl::Reference< TemplateContent >& _rLHS, const ::rtl::Reference< TemplateContent >& _rRHS )
{
if ( !_rLHS.is() || !_rRHS.is() )
{
OSL_FAIL( "TemplateContentEqual::operator(): invalid contents!" );
return true;
// this is not strictly true, in case only one is invalid - but this is a heavy error anyway
}
if ( _rLHS->getURL() != _rRHS->getURL() )
return false;
if ( _rLHS->getModDate() != _rRHS->getModDate() )
return false;
if ( _rLHS->getSubContents().size() != _rRHS->getSubContents().size() )
return false;
if ( _rLHS->getSubContents().size() )
{ // there are children
// -> compare them
::std::pair< FolderIterator, FolderIterator > aFirstDifferent = ::std::mismatch(
_rLHS->getSubContents().begin(),
_rLHS->getSubContents().end(),
_rRHS->getSubContents().begin(),
*this
);
if ( aFirstDifferent.first != _rLHS->getSubContents().end() )
return false;// the sub contents differ
}
return true;
}
};
//---------------------------------------------------------------------
/// base class for functors which act an an SvStream
struct StorageHelper
{
protected:
SvStream& m_rStorage;
StorageHelper( SvStream& _rStorage ) : m_rStorage( _rStorage ) { }
};
//---------------------------------------------------------------------
/// functor which allows storing a string
struct StoreString
:public ::std::unary_function< String, void >
,public StorageHelper
{
StoreString( SvStream& _rStorage ) : StorageHelper( _rStorage ) { }
void operator() ( const String& _rString ) const
{
m_rStorage.WriteByteString( _rString );
}
};
//---------------------------------------------------------------------
/// functor which stores the local name of a TemplateContent
struct StoreLocalContentName
:public ::std::unary_function< ::rtl::Reference< TemplateContent >, void >
,public StoreString
{
StoreLocalContentName( SvStream& _rStorage ) : StoreString( _rStorage ) { }
void operator() ( const ::rtl::Reference< TemplateContent >& _rxContent ) const
{
DBG_ERRORFILE( "This method must not be used, the whole URL must be stored!" );
// use the base class operator with the local name of the content
StoreString::operator() ( _rxContent->getName() );
}
};
//---------------------------------------------------------------------
struct StoreContentURL
:public ::std::unary_function< ::rtl::Reference< TemplateContent >, void >
,public StoreString
{
uno::Reference< util::XOfficeInstallationDirectories > m_xOfficeInstDirs;
StoreContentURL( SvStream& _rStorage,
const uno::Reference<
util::XOfficeInstallationDirectories > &
xOfficeInstDirs )
: StoreString( _rStorage ), m_xOfficeInstDirs( xOfficeInstDirs ) { }
void operator() ( const ::rtl::Reference< TemplateContent >& _rxContent ) const
{
// use the base class operator with the local name of the content
String sURL = _rxContent->getURL();
// #116281# Keep office installtion relocatable. Never store
// any direct references to office installation directory.
sURL = m_xOfficeInstDirs->makeRelocatableURL( sURL );
StoreString::operator() ( sURL );
}
};
//---------------------------------------------------------------------
/// functor which stores the complete content of a TemplateContent
struct StoreFolderContent
:public ::std::unary_function< ::rtl::Reference< TemplateContent >, void >
,public StorageHelper
{
uno::Reference< util::XOfficeInstallationDirectories > m_xOfficeInstDirs;
public:
StoreFolderContent( SvStream& _rStorage,
const uno::Reference<
util::XOfficeInstallationDirectories > &
xOfficeInstDirs )
: StorageHelper( _rStorage ), m_xOfficeInstDirs( xOfficeInstDirs ) { }
//.................................................................
void operator() ( const TemplateContent& _rContent ) const
{
// store the info about this content
m_rStorage << _rContent.getModDate();
// store the info about the children
// the number
m_rStorage << (sal_Int32)_rContent.size();
// their URLs ( the local name is not enough, since URL might be not a hierarchical one, "expand:" for example )
::std::for_each(
_rContent.getSubContents().begin(),
_rContent.getSubContents().end(),
StoreContentURL( m_rStorage, m_xOfficeInstDirs )
);
// their content
::std::for_each(
_rContent.getSubContents().begin(),
_rContent.getSubContents().end(),
*this
);
}
//.................................................................
void operator() ( const ::rtl::Reference< TemplateContent >& _rxContent ) const
{
if ( _rxContent.is() )
{
operator()( *_rxContent );
}
}
};
//---------------------------------------------------------------------
/// functor which reads a complete TemplateContent instance
struct ReadFolderContent
:public ::std::unary_function< ::rtl::Reference< TemplateContent >, void >
,public StorageHelper
{
uno::Reference< util::XOfficeInstallationDirectories > m_xOfficeInstDirs;
ReadFolderContent( SvStream& _rStorage,
const uno::Reference<
util::XOfficeInstallationDirectories > &
xOfficeInstDirs )
: StorageHelper( _rStorage ), m_xOfficeInstDirs( xOfficeInstDirs ) { }
//.................................................................
void operator() ( TemplateContent& _rContent ) const
{
// store the info about this content
util::DateTime aModDate;
m_rStorage >> aModDate;
_rContent.setModDate( aModDate );
// store the info about the children
// the number
sal_Int32 nChildren = 0;
m_rStorage >> nChildren;
TemplateFolderContent& rChildren = _rContent.getSubContents();
rChildren.resize( 0 );
rChildren.reserve( nChildren );
// initialize them with their (local) names
while ( nChildren-- )
{
String sURL;
m_rStorage.ReadByteString( sURL );
sURL = m_xOfficeInstDirs->makeAbsoluteURL( sURL );
INetURLObject aChildURL( sURL );
rChildren.push_back( new TemplateContent( aChildURL ) );
}
// their content
::std::for_each(
_rContent.getSubContents().begin(),
_rContent.getSubContents().end(),
*this
);
}
//.................................................................
void operator() ( const ::rtl::Reference< TemplateContent >& _rxContent ) const
{
if ( _rxContent.is() )
{
operator()( *_rxContent );
}
}
};
//=====================================================================
//= TemplateFolderCacheImpl
//=====================================================================
class TemplateFolderCacheImpl
{
private:
TemplateFolderContent m_aPreviousState; // the current state of the template dirs (as found on the HD)
TemplateFolderContent m_aCurrentState; // the previous state of the template dirs (as found in the cache file)
osl::Mutex m_aMutex;
// will be lazy inited; never access directly; use getOfficeInstDirs().
uno::Reference< util::XOfficeInstallationDirectories > m_xOfficeInstDirs;
SvStream* m_pCacheStream;
sal_Bool m_bNeedsUpdate : 1;
sal_Bool m_bKnowState : 1;
sal_Bool m_bValidCurrentState : 1;
sal_Bool m_bAutoStoreState : 1;
public:
TemplateFolderCacheImpl( sal_Bool _bAutoStoreState );
~TemplateFolderCacheImpl( );
sal_Bool needsUpdate( sal_Bool _bForceCheck );
void storeState( sal_Bool _bForceRetrieval );
private:
sal_Bool openCacheStream( sal_Bool _bForRead );
void closeCacheStream( );
/// read the state of the dirs from the cache file
sal_Bool readPreviousState();
/// read the current state of the dirs
sal_Bool readCurrentState();
String implParseSmart( const String& _rPath );
sal_Bool implReadFolder( const ::rtl::Reference< TemplateContent >& _rxRoot );
static String getCacheFileName();
static sal_Int32 getMagicNumber();
static void normalize( TemplateFolderContent& _rState );
// @return <TRUE/> if the states equal
static sal_Bool equalStates( const TemplateFolderContent& _rLHS, const TemplateFolderContent& _rRHS );
// late initialize m_xOfficeInstDirs
uno::Reference< util::XOfficeInstallationDirectories > getOfficeInstDirs();
};
//---------------------------------------------------------------------
TemplateFolderCacheImpl::TemplateFolderCacheImpl( sal_Bool _bAutoStoreState )
:m_pCacheStream ( NULL )
,m_bNeedsUpdate ( sal_True )
,m_bKnowState ( sal_False )
,m_bValidCurrentState ( sal_False )
,m_bAutoStoreState ( _bAutoStoreState )
{
}
//---------------------------------------------------------------------
TemplateFolderCacheImpl::~TemplateFolderCacheImpl( )
{
// store the current state if possible and required
if ( m_bValidCurrentState && m_bAutoStoreState )
storeState( sal_False );
closeCacheStream( );
}
//---------------------------------------------------------------------
sal_Int32 TemplateFolderCacheImpl::getMagicNumber()
{
sal_Int32 nMagic = 0;
( nMagic += (sal_Int8)'T' ) <<= 4;
( nMagic += (sal_Int8)'D' ) <<= 4;
( nMagic += (sal_Int8)'S' ) <<= 4;
( nMagic += (sal_Int8)'C' ) <<= 0;
return nMagic;
}
//---------------------------------------------------------------------
String TemplateFolderCacheImpl::getCacheFileName()
{
return String::CreateFromAscii( ".templdir.cache" );
}
//---------------------------------------------------------------------
void TemplateFolderCacheImpl::normalize( TemplateFolderContent& _rState )
{
SubContentSort()( _rState );
}
//---------------------------------------------------------------------
sal_Bool TemplateFolderCacheImpl::equalStates( const TemplateFolderContent& _rLHS, const TemplateFolderContent& _rRHS )
{
if ( _rLHS.size() != _rRHS.size() )
return sal_False;
// as both arrays are sorted (by definition - this is a precondition of this method)
// we can simply go from the front to the back and compare the single elements
::std::pair< ConstFolderIterator, ConstFolderIterator > aFirstDifferent = ::std::mismatch(
_rLHS.begin(),
_rLHS.end(),
_rRHS.begin(),
TemplateContentEqual()
);
return aFirstDifferent.first == _rLHS.end();
}
//---------------------------------------------------------------------
void TemplateFolderCacheImpl::storeState( sal_Bool _bForceRetrieval )
{
if ( !m_bValidCurrentState || _bForceRetrieval )
readCurrentState( );
if ( m_bValidCurrentState && openCacheStream( sal_False ) )
{
*m_pCacheStream << getMagicNumber();
// store the template root folders
// the size
*m_pCacheStream << (sal_Int32)m_aCurrentState.size();
// the complete URLs
::std::for_each(
m_aCurrentState.begin(),
m_aCurrentState.end(),
StoreContentURL( *m_pCacheStream, getOfficeInstDirs() )
);
// the contents
::std::for_each(
m_aCurrentState.begin(),
m_aCurrentState.end(),
StoreFolderContent( *m_pCacheStream, getOfficeInstDirs() )
);
}
}
//---------------------------------------------------------------------
String TemplateFolderCacheImpl::implParseSmart( const String& _rPath )
{
INetURLObject aParser;
aParser.SetSmartProtocol( INET_PROT_FILE );
aParser.SetURL( _rPath, INetURLObject::WAS_ENCODED );
if ( INET_PROT_NOT_VALID == aParser.GetProtocol() )
{
String sURL;
LocalFileHelper::ConvertPhysicalNameToURL( _rPath, sURL );
aParser.SetURL( sURL, INetURLObject::WAS_ENCODED );
}
return aParser.GetMainURL( INetURLObject::DECODE_TO_IURI );
}
//---------------------------------------------------------------------
void TemplateFolderCacheImpl::closeCacheStream( )
{
DELETEZ( m_pCacheStream );
}
//---------------------------------------------------------------------
sal_Bool TemplateFolderCacheImpl::implReadFolder( const ::rtl::Reference< TemplateContent >& _rxRoot )
{
try
{
// create a content for the current folder root
Reference< XResultSet > xResultSet;
Sequence< ::rtl::OUString > aContentProperties( 4);
aContentProperties[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Title" ));
aContentProperties[1] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "DateModified" ));
aContentProperties[2] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "DateCreated" ));
aContentProperties[3] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "IsFolder" ));
// get the set of sub contents in the folder
try
{
Reference< XDynamicResultSet > xDynResultSet;
::ucbhelper::Content aTemplateRoot( _rxRoot->getURL(), Reference< XCommandEnvironment >() );
xDynResultSet = aTemplateRoot.createDynamicCursor( aContentProperties, ::ucbhelper::INCLUDE_FOLDERS_AND_DOCUMENTS );
if ( xDynResultSet.is() )
xResultSet = xDynResultSet->getStaticResultSet();
}
catch( CommandAbortedException& )
{
DBG_ERRORFILE( "TemplateFolderCacheImpl::implReadFolder: caught a CommandAbortedException!" );
return sal_False;
}
catch( ::com::sun::star::uno::Exception& )
{
}
// collect the infos about the sub contents
if ( xResultSet.is() )
{
Reference< XRow > xRow( xResultSet, UNO_QUERY_THROW );
Reference< XContentAccess > xContentAccess( xResultSet, UNO_QUERY_THROW );
while ( xResultSet->next() )
{
INetURLObject aSubContentURL( xContentAccess->queryContentIdentifierString() );
// a new content instance
::rtl::Reference< TemplateContent > xChild = new TemplateContent( aSubContentURL );
// the modified date
xChild->setModDate( xRow->getTimestamp( 2 ) ); // date modified
if ( xRow->wasNull() )
xChild->setModDate( xRow->getTimestamp( 3 ) ); // fallback: date created
// push back this content
_rxRoot->push_back( xChild );
// is it a folder?
if ( xRow->getBoolean( 4 ) && !xRow->wasNull() )
{ // yes -> step down
ConstFolderIterator aNextLevelRoot = _rxRoot->end();
--aNextLevelRoot;
implReadFolder( *aNextLevelRoot );
}
}
}
}
catch( const Exception& )
{
OSL_FAIL( "TemplateFolderCacheImpl::implReadFolder: caught an exception!" );
return sal_False;
}
return sal_True;
}
//---------------------------------------------------------------------
sal_Bool TemplateFolderCacheImpl::readCurrentState()
{
// reset
m_bValidCurrentState = sal_False;
TemplateFolderContent aTemplateFolderContent;
m_aCurrentState.swap( aTemplateFolderContent );
// the template directories from the config
const SvtPathOptions aPathOptions;
String aDirs = aPathOptions.GetTemplatePath();
sal_uInt16 nDirs = aDirs.GetTokenCount( ';' );
m_aCurrentState.reserve( nDirs );
// loop through all the root-level template folders
for ( sal_uInt16 i=0; i<nDirs; ++i)
{
String sTemplatePath( aDirs.GetToken( i, ';' ) );
sTemplatePath = aPathOptions.ExpandMacros( sTemplatePath );
// create a new entry
m_aCurrentState.push_back( new TemplateContent( INetURLObject( sTemplatePath ) ) );
TemplateFolderContent::iterator aCurrentRoot = m_aCurrentState.end();
--aCurrentRoot;
if ( !implReadFolder( *aCurrentRoot ) )
return sal_False;
}
// normalize the array (which basically means "sort it")
normalize( m_aCurrentState );
m_bValidCurrentState = sal_True;
return m_bValidCurrentState;
}
//---------------------------------------------------------------------
sal_Bool TemplateFolderCacheImpl::readPreviousState()
{
DBG_ASSERT( m_pCacheStream, "TemplateFolderCacheImpl::readPreviousState: not to be called without stream!" );
// reset
TemplateFolderContent aTemplateFolderContent;
m_aPreviousState.swap( aTemplateFolderContent );
// check the magic number
sal_Int32 nMagic = 0;
*m_pCacheStream >> nMagic;
DBG_ASSERT( getMagicNumber() == nMagic, "TemplateFolderCacheImpl::readPreviousState: invalid cache file!" );
if ( getMagicNumber() != nMagic )
return sal_False;
// the root directories
// their number
sal_Int32 nRootDirectories = 0;
*m_pCacheStream >> nRootDirectories;
// init empty TemplateContens with the URLs
m_aPreviousState.reserve( nRootDirectories );
while ( nRootDirectories-- )
{
String sURL;
m_pCacheStream->ReadByteString( sURL );
// #116281# Keep office installtion relocatable. Never store
// any direct references to office installation directory.
sURL = getOfficeInstDirs()->makeAbsoluteURL( sURL );
m_aPreviousState.push_back(
new TemplateContent( INetURLObject(sURL) ) );
}
// read the contents of the root folders
::std::for_each(
m_aPreviousState.begin(),
m_aPreviousState.end(),
ReadFolderContent( *m_pCacheStream, getOfficeInstDirs() )
);
DBG_ASSERT( !m_pCacheStream->GetErrorCode(), "TemplateFolderCacheImpl::readPreviousState: unknown error during reading the state cache!" );
// normalize the array (which basically means "sort it")
normalize( m_aPreviousState );
return sal_True;
}
//---------------------------------------------------------------------
sal_Bool TemplateFolderCacheImpl::openCacheStream( sal_Bool _bForRead )
{
// close any old stream instance
closeCacheStream( );
// get the storage directory
String sStorageURL = implParseSmart( SvtPathOptions().GetStoragePath() );
INetURLObject aStorageURL( sStorageURL );
if ( INET_PROT_NOT_VALID == aStorageURL.GetProtocol() )
{
OSL_FAIL( "TemplateFolderCacheImpl::openCacheStream: invalid storage path!" );
return sal_False;
}
// append our name
aStorageURL.Append( getCacheFileName() );
// open the stream
m_pCacheStream = UcbStreamHelper::CreateStream( aStorageURL.GetMainURL( INetURLObject::DECODE_TO_IURI ),
_bForRead ? STREAM_READ | STREAM_NOCREATE : STREAM_WRITE | STREAM_TRUNC );
DBG_ASSERT( m_pCacheStream, "TemplateFolderCacheImpl::openCacheStream: could not open/create the cache stream!" );
if ( m_pCacheStream && m_pCacheStream->GetErrorCode() )
{
DELETEZ( m_pCacheStream );
}
if ( m_pCacheStream )
m_pCacheStream->SetStreamCharSet( RTL_TEXTENCODING_UTF8 );
return NULL != m_pCacheStream;
}
//---------------------------------------------------------------------
sal_Bool TemplateFolderCacheImpl::needsUpdate( sal_Bool _bForceCheck )
{
if ( m_bKnowState && !_bForceCheck )
return m_bNeedsUpdate;
m_bNeedsUpdate = sal_True;
m_bKnowState = sal_True;
if ( readCurrentState() )
{
// open the stream which contains the cached state of the directories
if ( openCacheStream( sal_True ) )
{ // opening the stream succeeded
if ( readPreviousState() )
{
m_bNeedsUpdate = !equalStates( m_aPreviousState, m_aCurrentState );
}
else
{
closeCacheStream();
}
}
}
return m_bNeedsUpdate;
}
//---------------------------------------------------------------------
uno::Reference< util::XOfficeInstallationDirectories >
TemplateFolderCacheImpl::getOfficeInstDirs()
{
if ( !m_xOfficeInstDirs.is() )
{
osl::MutexGuard aGuard( m_aMutex );
if ( !m_xOfficeInstDirs.is() )
{
// @@@ This is bad!
uno::Reference< lang::XMultiServiceFactory > xSMgr
= comphelper::getProcessServiceFactory();
OSL_ENSURE( xSMgr.is(), "No service manager!" );
uno::Reference< beans::XPropertySet > xPropSet(
xSMgr, uno::UNO_QUERY );
if ( xPropSet.is() )
{
uno::Reference< uno::XComponentContext > xCtx;
xPropSet->getPropertyValue(
rtl::OUString(
RTL_CONSTASCII_USTRINGPARAM( "DefaultContext" ) ) )
>>= xCtx;
OSL_ENSURE( xCtx.is(),
"Unable to obtain component context from service manager!" );
if ( xCtx.is() )
{
xCtx->getValueByName(
rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
"/singletons/com.sun.star.util.theOfficeInstallationDirectories" ) ) )
>>= m_xOfficeInstDirs;
}
OSL_ENSURE( m_xOfficeInstDirs.is(),
"Unable to obtain office directories singleton!" );
}
}
}
return m_xOfficeInstDirs;
}
//=====================================================================
//= TemplateFolderCache
//=====================================================================
//---------------------------------------------------------------------
TemplateFolderCache::TemplateFolderCache( sal_Bool _bAutoStoreState )
:m_pImpl( new TemplateFolderCacheImpl( _bAutoStoreState ) )
{
}
//---------------------------------------------------------------------
TemplateFolderCache::~TemplateFolderCache( )
{
DELETEZ( m_pImpl );
}
//---------------------------------------------------------------------
sal_Bool TemplateFolderCache::needsUpdate( sal_Bool _bForceCheck )
{
return m_pImpl->needsUpdate( _bForceCheck );
}
//---------------------------------------------------------------------
void TemplateFolderCache::storeState( sal_Bool _bForceRetrieval )
{
m_pImpl->storeState( _bForceRetrieval );
}
//.........................................................................
} // namespace sfx2
//.........................................................................
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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