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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <cppuhelper/factory.hxx>
+#include <i18nlangtag/lang.h>
+#include <i18nlangtag/languagetag.hxx>
+#include <osl/mutex.hxx>
+#include <sal/log.hxx>
+#include <tools/debug.hxx>
+#include <tools/stream.hxx>
+#include <tools/urlobj.hxx>
+#include <tools/diagnose_ex.h>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <unotools/streamwrap.hxx>
+#include <unotools/ucbstreamhelper.hxx>
+
+#include <com/sun/star/linguistic2/ConversionPropertyType.hpp>
+#include <com/sun/star/util/XFlushable.hpp>
+#include <com/sun/star/lang/EventObject.hpp>
+#include <com/sun/star/ucb/SimpleFileAccess.hpp>
+#include <com/sun/star/uno/Reference.h>
+#include <com/sun/star/util/XFlushListener.hpp>
+#include <com/sun/star/io/IOException.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/xml/sax/Writer.hpp>
+#include <com/sun/star/xml/sax/InputSource.hpp>
+#include <com/sun/star/xml/sax/SAXParseException.hpp>
+#include <com/sun/star/container/NoSuchElementException.hpp>
+#include <com/sun/star/container/ElementExistException.hpp>
+
+
+#include "convdic.hxx"
+#include "convdicxml.hxx"
+#include <linguistic/misc.hxx>
+#include "defs.hxx"
+
+using namespace std;
+using namespace utl;
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::linguistic2;
+using namespace linguistic;
+
+
+static void ReadThroughDic( const OUString &rMainURL, ConvDicXMLImport &rImport )
+{
+ if (rMainURL.isEmpty())
+ return;
+ DBG_ASSERT(!INetURLObject( rMainURL ).HasError(), "invalid URL");
+
+ uno::Reference< uno::XComponentContext > xContext( comphelper::getProcessComponentContext() );
+
+ // get xInputStream stream
+ uno::Reference< io::XInputStream > xIn;
+ try
+ {
+ uno::Reference< ucb::XSimpleFileAccess3 > xAccess( ucb::SimpleFileAccess::create(xContext) );
+ xIn = xAccess->openFileRead( rMainURL );
+ }
+ catch (const uno::Exception &)
+ {
+ SAL_WARN( "linguistic", "failed to get input stream" );
+ }
+ if (!xIn.is())
+ return;
+
+ // prepare ParserInputSource
+ xml::sax::InputSource aParserInput;
+ aParserInput.aInputStream = xIn;
+
+ // finally, parser the stream
+ try
+ {
+ rImport.parseStream( aParserInput ); // implicitly calls ConvDicXMLImport::CreateContext
+ }
+ catch( xml::sax::SAXParseException& )
+ {
+ TOOLS_WARN_EXCEPTION("linguistic", "");
+ }
+ catch( xml::sax::SAXException& )
+ {
+ TOOLS_WARN_EXCEPTION("linguistic", "");
+ }
+ catch( io::IOException& )
+ {
+ TOOLS_WARN_EXCEPTION("linguistic", "");
+ }
+}
+
+bool IsConvDic( const OUString &rFileURL, LanguageType &nLang, sal_Int16 &nConvType )
+{
+ bool bRes = false;
+
+ if (rFileURL.isEmpty())
+ return bRes;
+
+ // check if file extension matches CONV_DIC_EXT
+ OUString aExt;
+ sal_Int32 nPos = rFileURL.lastIndexOf( '.' );
+ if (-1 != nPos)
+ aExt = rFileURL.copy( nPos + 1 ).toAsciiLowerCase();
+ if (aExt != CONV_DIC_EXT)
+ return bRes;
+
+ // first argument being 0 should stop the file from being parsed
+ // up to the end (reading all entries) when the required
+ // data (language, conversion type) is found.
+ rtl::Reference<ConvDicXMLImport> pImport = new ConvDicXMLImport( nullptr );
+
+ ReadThroughDic( rFileURL, *pImport ); // will implicitly add the entries
+ bRes = !LinguIsUnspecified( pImport->GetLanguage()) &&
+ pImport->GetConversionType() != -1;
+ DBG_ASSERT( bRes, "conversion dictionary corrupted?" );
+
+ if (bRes)
+ {
+ nLang = pImport->GetLanguage();
+ nConvType = pImport->GetConversionType();
+ }
+
+ return bRes;
+}
+
+
+ConvDic::ConvDic(
+ const OUString &rName,
+ LanguageType nLang,
+ sal_Int16 nConvType,
+ bool bBiDirectional,
+ const OUString &rMainURL) :
+ aFlushListeners( GetLinguMutex() ),
+ aMainURL(rMainURL), aName(rName), nLanguage(nLang),
+ nConversionType(nConvType),
+ nMaxLeftCharCount(0), nMaxRightCharCount(0),
+ bMaxCharCountIsValid(true),
+ bNeedEntries(true),
+ bIsModified(false), bIsActive(false)
+
+{
+ if (bBiDirectional)
+ pFromRight.reset( new ConvMap );
+ if (nLang == LANGUAGE_CHINESE_SIMPLIFIED || nLang == LANGUAGE_CHINESE_TRADITIONAL)
+ pConvPropType.reset( new PropTypeMap );
+
+ if( !rMainURL.isEmpty() )
+ {
+ bool bExists = false;
+ IsReadOnly( rMainURL, &bExists );
+
+ if( !bExists ) // new empty dictionary
+ {
+ bNeedEntries = false;
+ //! create physical representation of an **empty** dictionary
+ //! that could be found by the dictionary-list implementation
+ // (Note: empty dictionaries are not just empty files!)
+ Save();
+ }
+ }
+ else
+ {
+ bNeedEntries = false;
+ }
+}
+
+
+ConvDic::~ConvDic()
+{
+}
+
+
+void ConvDic::Load()
+{
+ DBG_ASSERT( !bIsModified, "dictionary is modified. Really do 'Load'?" );
+
+ //!! prevent function from being called recursively via HasEntry, AddEntry
+ bNeedEntries = false;
+ rtl::Reference<ConvDicXMLImport> pImport = new ConvDicXMLImport( this );
+ ReadThroughDic( aMainURL, *pImport ); // will implicitly add the entries
+ bIsModified = false;
+}
+
+
+void ConvDic::Save()
+{
+ DBG_ASSERT( !bNeedEntries, "saving while entries missing" );
+ if (aMainURL.isEmpty() || bNeedEntries)
+ return;
+ DBG_ASSERT(!INetURLObject( aMainURL ).HasError(), "invalid URL");
+
+ uno::Reference< uno::XComponentContext > xContext( comphelper::getProcessComponentContext() );
+
+ // get XOutputStream stream
+ uno::Reference< io::XStream > xStream;
+ try
+ {
+ uno::Reference< ucb::XSimpleFileAccess3 > xAccess( ucb::SimpleFileAccess::create(xContext) );
+ xStream = xAccess->openFileReadWrite( aMainURL );
+ }
+ catch (const uno::Exception &)
+ {
+ SAL_WARN( "linguistic", "failed to get input stream" );
+ }
+ if (!xStream.is())
+ return;
+
+ std::unique_ptr<SvStream> pStream( utl::UcbStreamHelper::CreateStream( xStream ) );
+
+ // get XML writer
+ uno::Reference< xml::sax::XWriter > xSaxWriter = xml::sax::Writer::create(xContext);
+
+ if (xStream.is())
+ {
+ // connect XML writer to output stream
+ xSaxWriter->setOutputStream( xStream->getOutputStream() );
+
+ // prepare arguments (prepend doc handler to given arguments)
+ rtl::Reference<ConvDicXMLExport> pExport = new ConvDicXMLExport( *this, aMainURL, xSaxWriter );
+ bool bRet = pExport->Export(); // write entries to file
+ DBG_ASSERT( !pStream->GetError(), "I/O error while writing to stream" );
+ if (bRet)
+ bIsModified = false;
+ }
+ DBG_ASSERT( !bIsModified, "dictionary still modified after save. Save failed?" );
+}
+
+
+ConvMap::iterator ConvDic::GetEntry( ConvMap &rMap, const OUString &rFirstText, const OUString &rSecondText )
+{
+ pair< ConvMap::iterator, ConvMap::iterator > aRange =
+ rMap.equal_range( rFirstText );
+ ConvMap::iterator aPos = rMap.end();
+ for (ConvMap::iterator aIt = aRange.first;
+ aIt != aRange.second && aPos == rMap.end();
+ ++aIt)
+ {
+ if ((*aIt).second == rSecondText)
+ aPos = aIt;
+ }
+ return aPos;
+}
+
+
+bool ConvDic::HasEntry( const OUString &rLeftText, const OUString &rRightText )
+{
+ if (bNeedEntries)
+ Load();
+ ConvMap::iterator aIt = GetEntry( aFromLeft, rLeftText, rRightText );
+ return aIt != aFromLeft.end();
+}
+
+
+void ConvDic::AddEntry( const OUString &rLeftText, const OUString &rRightText )
+{
+ if (bNeedEntries)
+ Load();
+
+ DBG_ASSERT(!HasEntry( rLeftText, rRightText), "entry already exists" );
+ aFromLeft .emplace( rLeftText, rRightText );
+ if (pFromRight)
+ pFromRight->emplace( rRightText, rLeftText );
+
+ if (bMaxCharCountIsValid)
+ {
+ if (rLeftText.getLength() > nMaxLeftCharCount)
+ nMaxLeftCharCount = static_cast<sal_Int16>(rLeftText.getLength());
+ if (pFromRight && rRightText.getLength() > nMaxRightCharCount)
+ nMaxRightCharCount = static_cast<sal_Int16>(rRightText.getLength());
+ }
+
+ bIsModified = true;
+}
+
+
+void ConvDic::RemoveEntry( const OUString &rLeftText, const OUString &rRightText )
+{
+ if (bNeedEntries)
+ Load();
+
+ ConvMap::iterator aLeftIt = GetEntry( aFromLeft, rLeftText, rRightText );
+ DBG_ASSERT( aLeftIt != aFromLeft.end(), "left map entry missing" );
+ aFromLeft .erase( aLeftIt );
+
+ if (pFromRight)
+ {
+ ConvMap::iterator aRightIt = GetEntry( *pFromRight, rRightText, rLeftText );
+ DBG_ASSERT( aRightIt != pFromRight->end(), "right map entry missing" );
+ pFromRight->erase( aRightIt );
+ }
+
+ bIsModified = true;
+ bMaxCharCountIsValid = false;
+}
+
+
+OUString SAL_CALL ConvDic::getName( )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ return aName;
+}
+
+
+Locale SAL_CALL ConvDic::getLocale( )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ return LanguageTag::convertToLocale( nLanguage );
+}
+
+
+sal_Int16 SAL_CALL ConvDic::getConversionType( )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ return nConversionType;
+}
+
+
+void SAL_CALL ConvDic::setActive( sal_Bool bActivate )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ bIsActive = bActivate;
+}
+
+
+sal_Bool SAL_CALL ConvDic::isActive( )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ return bIsActive;
+}
+
+
+void SAL_CALL ConvDic::clear( )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ aFromLeft .clear();
+ if (pFromRight)
+ pFromRight->clear();
+ bNeedEntries = false;
+ bIsModified = true;
+ nMaxLeftCharCount = 0;
+ nMaxRightCharCount = 0;
+ bMaxCharCountIsValid = true;
+}
+
+
+uno::Sequence< OUString > SAL_CALL ConvDic::getConversions(
+ const OUString& aText,
+ sal_Int32 nStartPos,
+ sal_Int32 nLength,
+ ConversionDirection eDirection,
+ sal_Int32 /*nTextConversionOptions*/ )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+
+ if (!pFromRight && eDirection == ConversionDirection_FROM_RIGHT)
+ return uno::Sequence< OUString >();
+
+ if (bNeedEntries)
+ Load();
+
+ OUString aLookUpText( aText.copy(nStartPos, nLength) );
+ ConvMap &rConvMap = eDirection == ConversionDirection_FROM_LEFT ?
+ aFromLeft : *pFromRight;
+ pair< ConvMap::iterator, ConvMap::iterator > aRange =
+ rConvMap.equal_range( aLookUpText );
+
+ std::vector<OUString> aRes;
+ auto nCount = static_cast<size_t>(std::distance(aRange.first, aRange.second));
+ aRes.reserve(nCount);
+
+ std::transform(aRange.first, aRange.second, std::back_inserter(aRes),
+ [](ConvMap::const_reference rEntry) { return rEntry.second; });
+
+ return comphelper::containerToSequence(aRes);
+}
+
+
+uno::Sequence< OUString > SAL_CALL ConvDic::getConversionEntries(
+ ConversionDirection eDirection )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+
+ if (!pFromRight && eDirection == ConversionDirection_FROM_RIGHT)
+ return uno::Sequence< OUString >();
+
+ if (bNeedEntries)
+ Load();
+
+ ConvMap &rConvMap = eDirection == ConversionDirection_FROM_LEFT ?
+ aFromLeft : *pFromRight;
+ std::vector<OUString> aRes;
+ aRes.reserve(rConvMap.size());
+ for (auto const& elem : rConvMap)
+ {
+ OUString aCurEntry( elem.first );
+ // skip duplicate entries ( duplicate = duplicate entries
+ // respective to the evaluated side (FROM_LEFT or FROM_RIGHT).
+ // Thus if FROM_LEFT is evaluated for pairs (A,B) and (A,C)
+ // only one entry for A will be returned in the result)
+ if (std::find(aRes.begin(), aRes.end(), aCurEntry) == aRes.end())
+ aRes.push_back(aCurEntry);
+ }
+
+ return comphelper::containerToSequence(aRes);
+}
+
+
+void SAL_CALL ConvDic::addEntry(
+ const OUString& aLeftText,
+ const OUString& aRightText )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ if (bNeedEntries)
+ Load();
+ if (HasEntry( aLeftText, aRightText ))
+ throw container::ElementExistException();
+ AddEntry( aLeftText, aRightText );
+}
+
+
+void SAL_CALL ConvDic::removeEntry(
+ const OUString& aLeftText,
+ const OUString& aRightText )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ if (bNeedEntries)
+ Load();
+ if (!HasEntry( aLeftText, aRightText ))
+ throw container::NoSuchElementException();
+ RemoveEntry( aLeftText, aRightText );
+}
+
+
+sal_Int16 SAL_CALL ConvDic::getMaxCharCount( ConversionDirection eDirection )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+
+ if (!pFromRight && eDirection == ConversionDirection_FROM_RIGHT)
+ {
+ DBG_ASSERT( nMaxRightCharCount == 0, "max right char count should be 0" );
+ return 0;
+ }
+
+ if (bNeedEntries)
+ Load();
+
+ if (!bMaxCharCountIsValid)
+ {
+ nMaxLeftCharCount = 0;
+ for (auto const& elem : aFromLeft)
+ {
+ sal_Int16 nTmp = static_cast<sal_Int16>(elem.first.getLength());
+ if (nTmp > nMaxLeftCharCount)
+ nMaxLeftCharCount = nTmp;
+ }
+
+ nMaxRightCharCount = 0;
+ if (pFromRight)
+ {
+ for (auto const& elem : *pFromRight)
+ {
+ sal_Int16 nTmp = static_cast<sal_Int16>(elem.first.getLength());
+ if (nTmp > nMaxRightCharCount)
+ nMaxRightCharCount = nTmp;
+ }
+ }
+
+ bMaxCharCountIsValid = true;
+ }
+ sal_Int16 nRes = eDirection == ConversionDirection_FROM_LEFT ?
+ nMaxLeftCharCount : nMaxRightCharCount;
+ DBG_ASSERT( nRes >= 0, "invalid MaxCharCount" );
+ return nRes;
+}
+
+
+void SAL_CALL ConvDic::setPropertyType(
+ const OUString& rLeftText,
+ const OUString& rRightText,
+ sal_Int16 nPropertyType )
+{
+ bool bHasElement = HasEntry( rLeftText, rRightText);
+ if (!bHasElement)
+ throw container::NoSuchElementException();
+
+ // currently we assume that entries with the same left text have the
+ // same PropertyType even if the right text is different...
+ if (pConvPropType)
+ pConvPropType->emplace( rLeftText, nPropertyType );
+ bIsModified = true;
+}
+
+
+sal_Int16 SAL_CALL ConvDic::getPropertyType(
+ const OUString& rLeftText,
+ const OUString& rRightText )
+{
+ bool bHasElement = HasEntry( rLeftText, rRightText);
+ if (!bHasElement)
+ throw container::NoSuchElementException();
+
+ sal_Int16 nRes = ConversionPropertyType::NOT_DEFINED;
+ if (pConvPropType)
+ {
+ // still assuming that entries with same left text have same PropertyType
+ // even if they have different right text...
+ PropTypeMap::iterator aIt = pConvPropType->find( rLeftText );
+ if (aIt != pConvPropType->end())
+ nRes = (*aIt).second;
+ }
+ return nRes;
+}
+
+
+void SAL_CALL ConvDic::flush( )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+
+ if (!bIsModified)
+ return;
+
+ Save();
+
+ // notify listeners
+ EventObject aEvtObj;
+ aEvtObj.Source = uno::Reference< XFlushable >( this );
+ aFlushListeners.notifyEach( &util::XFlushListener::flushed, aEvtObj );
+}
+
+
+void SAL_CALL ConvDic::addFlushListener(
+ const uno::Reference< util::XFlushListener >& rxListener )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ if (rxListener.is())
+ aFlushListeners.addInterface( rxListener );
+}
+
+
+void SAL_CALL ConvDic::removeFlushListener(
+ const uno::Reference< util::XFlushListener >& rxListener )
+{
+ MutexGuard aGuard( GetLinguMutex() );
+ if (rxListener.is())
+ aFlushListeners.removeInterface( rxListener );
+}
+
+
+OUString SAL_CALL ConvDic::getImplementationName( )
+{
+ return "com.sun.star.lingu2.ConvDic";
+}
+
+sal_Bool SAL_CALL ConvDic::supportsService( const OUString& rServiceName )
+{
+ return cppu::supportsService(this, rServiceName);
+}
+
+uno::Sequence< OUString > SAL_CALL ConvDic::getSupportedServiceNames( )
+{
+ return { SN_CONV_DICTIONARY };
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */