Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 887 insertions, 0 deletions

diff --git a/ucb/source/core/ucb.cxx b/ucb/source/core/ucb.cxx
new file mode 100644
index 000000000..4e41e8cff
--- /dev/null
+++ b/ucb/source/core/ucb.cxx
@@ -0,0 +1,887 @@
+/* -*- 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 .
+ */
+
+
+/**************************************************************************
+                                TODO
+ **************************************************************************
+
+ *************************************************************************/
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <osl/diagnose.h>
+#include <sal/log.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/propertysequence.hxx>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/ucb/DuplicateProviderException.hpp>
+#include <com/sun/star/ucb/GlobalTransferCommandArgument2.hpp>
+#include <com/sun/star/ucb/UnsupportedCommandException.hpp>
+#include <com/sun/star/ucb/XCommandInfo.hpp>
+#include <com/sun/star/ucb/XContentProviderSupplier.hpp>
+#include <com/sun/star/configuration/theDefaultProvider.hpp>
+#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
+#include <com/sun/star/container/XNameAccess.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <ucbhelper/cancelcommandexecution.hxx>
+#include <tools/diagnose_ex.h>
+#include "identify.hxx"
+#include "ucbcmds.hxx"
+
+#include "ucb.hxx"
+
+using namespace comphelper;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::ucb;
+using namespace ucb_impl;
+using namespace com::sun::star;
+using namespace ucbhelper;
+
+namespace {
+
+bool fillPlaceholders(OUString const & rInput,
+                      uno::Sequence< uno::Any > const & rReplacements,
+                      OUString * pOutput)
+{
+    sal_Unicode const * p = rInput.getStr();
+    sal_Unicode const * pEnd = p + rInput.getLength();
+    sal_Unicode const * pCopy = p;
+    OUStringBuffer aBuffer;
+    while (p != pEnd)
+        switch (*p++)
+        {
+            case '&':
+                if (pEnd - p >= 4
+                    && p[0] == 'a' && p[1] == 'm' && p[2] == 'p'
+                    && p[3] == ';')
+                {
+                    aBuffer.append(pCopy, p - 1 - pCopy);
+                    aBuffer.append('&');
+                    p += 4;
+                    pCopy = p;
+                }
+                else if (pEnd - p >= 3
+                         && p[0] == 'l' && p[1] == 't' && p[2] == ';')
+                {
+                    aBuffer.append(pCopy, p - 1 - pCopy);
+                    aBuffer.append('<');
+                    p += 3;
+                    pCopy = p;
+                }
+                else if (pEnd - p >= 3
+                         && p[0] == 'g' && p[1] == 't' && p[2] == ';')
+                {
+                    aBuffer.append(pCopy, p - 1 - pCopy);
+                    aBuffer.append('>');
+                    p += 3;
+                    pCopy = p;
+                }
+                break;
+
+            case '<':
+                sal_Unicode const * q = p;
+                while (q != pEnd && *q != '>')
+                    ++q;
+                if (q == pEnd)
+                    break;
+                OUString aKey(p, q - p);
+                OUString aValue;
+                bool bFound = false;
+                for (sal_Int32 i = 2; i + 1 < rReplacements.getLength();
+                     i += 2)
+                {
+                    OUString aReplaceKey;
+                    if ((rReplacements[i] >>= aReplaceKey)
+                        && aReplaceKey == aKey
+                        && (rReplacements[i + 1] >>= aValue))
+                    {
+                        bFound = true;
+                        break;
+                    }
+                }
+                if (!bFound)
+                    return false;
+                aBuffer.append(pCopy, p - 1 - pCopy);
+                aBuffer.append(aValue);
+                p = q + 1;
+                pCopy = p;
+                break;
+        }
+    aBuffer.append(pCopy, pEnd - pCopy);
+    *pOutput = aBuffer.makeStringAndClear();
+    return true;
+}
+
+void makeAndAppendXMLName(
+                OUStringBuffer & rBuffer, const OUString & rIn )
+{
+    sal_Int32 nCount = rIn.getLength();
+    for ( sal_Int32 n = 0; n < nCount; ++n )
+    {
+        const sal_Unicode c = rIn[ n ];
+        switch ( c )
+        {
+            case '&':
+                rBuffer.append( "&amp;" );
+                break;
+
+            case '"':
+                rBuffer.append( "&quot;" );
+                break;
+
+            case '\'':
+                rBuffer.append( "&apos;" );
+                break;
+
+            case '<':
+                rBuffer.append( "&lt;" );
+                break;
+
+            case '>':
+                rBuffer.append( "&gt;" );
+                break;
+
+            default:
+                rBuffer.append( c );
+                break;
+        }
+    }
+}
+
+bool createContentProviderData(
+    std::u16string_view rProvider,
+    const uno::Reference< container::XHierarchicalNameAccess >& rxHierNameAccess,
+    ContentProviderData & rInfo)
+{
+    // Obtain service name.
+
+    OUString aValue;
+    try
+    {
+        if ( !( rxHierNameAccess->getByHierarchicalName(
+                    OUString::Concat(rProvider) +  "/ServiceName" ) >>= aValue ) )
+        {
+            OSL_FAIL( "UniversalContentBroker::getContentProviderData - "
+                        "Error getting item value!" );
+        }
+    }
+    catch (const container::NoSuchElementException&)
+    {
+        return false;
+    }
+
+    rInfo.ServiceName = aValue;
+
+    // Obtain URL Template.
+
+    if ( !( rxHierNameAccess->getByHierarchicalName(
+                OUString::Concat(rProvider) + "/URLTemplate" ) >>= aValue ) )
+    {
+        OSL_FAIL( "UniversalContentBroker::getContentProviderData - "
+                    "Error getting item value!" );
+    }
+
+    rInfo.URLTemplate = aValue;
+
+    // Obtain Arguments.
+
+    if ( !( rxHierNameAccess->getByHierarchicalName(
+                OUString::Concat(rProvider) + "/Arguments" ) >>= aValue ) )
+    {
+        OSL_FAIL( "UniversalContentBroker::getContentProviderData - "
+                    "Error getting item value!" );
+    }
+
+    rInfo.Arguments = aValue;
+    return true;
+}
+
+}
+
+
+// UniversalContentBroker Implementation.
+
+
+UniversalContentBroker::UniversalContentBroker(
+    const Reference< css::uno::XComponentContext >& xContext )
+: m_xContext( xContext ),
+  m_nCommandId( 0 )
+{
+    OSL_ENSURE( m_xContext.is(),
+                "UniversalContentBroker ctor: No service manager" );
+}
+
+
+// virtual
+UniversalContentBroker::~UniversalContentBroker()
+{
+}
+
+
+// XComponent methods.
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::dispose()
+{
+    if ( m_pDisposeEventListeners && m_pDisposeEventListeners->getLength() )
+    {
+        EventObject aEvt;
+        aEvt.Source = static_cast< XComponent* >(this);
+        m_pDisposeEventListeners->disposeAndClear( aEvt );
+    }
+
+    if ( m_xNotifier.is() )
+        m_xNotifier->removeChangesListener( this );
+}
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::addEventListener(
+                            const Reference< XEventListener >& Listener )
+{
+    if ( !m_pDisposeEventListeners )
+        m_pDisposeEventListeners.reset( new OInterfaceContainerHelper3<css::lang::XEventListener>( m_aMutex ) );
+
+    m_pDisposeEventListeners->addInterface( Listener );
+}
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::removeEventListener(
+                            const Reference< XEventListener >& Listener )
+{
+    if ( m_pDisposeEventListeners )
+        m_pDisposeEventListeners->removeInterface( Listener );
+
+    // Note: Don't want to delete empty container here -> performance.
+}
+
+
+// XServiceInfo methods.
+
+OUString SAL_CALL UniversalContentBroker::getImplementationName()
+{
+    return "com.sun.star.comp.ucb.UniversalContentBroker";
+}
+sal_Bool SAL_CALL UniversalContentBroker::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService( this, ServiceName );
+}
+css::uno::Sequence< OUString > SAL_CALL UniversalContentBroker::getSupportedServiceNames()
+{
+    return { "com.sun.star.ucb.UniversalContentBroker" };
+}
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+ucb_UniversalContentBroker_get_implementation(
+    css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new UniversalContentBroker(context));
+}
+
+
+// XInitialization methods.
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::initialize( const css::uno::Sequence< Any >& aArguments )
+{
+    {
+        osl::MutexGuard aGuard(m_aMutex);
+        if (m_aArguments.hasElements())
+        {
+            if (aArguments.hasElements()
+                && !(m_aArguments.getLength() == 2
+                     && aArguments.getLength() == 2
+                     && m_aArguments[0] == aArguments[0]
+                     && m_aArguments[1] == aArguments[1]))
+            {
+                throw IllegalArgumentException(
+                    "UCB reinitialized with different arguments",
+                    static_cast< cppu::OWeakObject * >(this), 0);
+            }
+            return;
+        }
+        if (!aArguments.hasElements())
+        {
+            m_aArguments = { Any(OUString("Local")), Any(OUString("Office")) };
+        }
+        else
+        {
+            m_aArguments = aArguments;
+        }
+    }
+    configureUcb();
+}
+
+
+// XContentProviderManager methods.
+
+
+// virtual
+Reference< XContentProvider > SAL_CALL
+UniversalContentBroker::registerContentProvider(
+                            const Reference< XContentProvider >& Provider,
+                            const OUString& Scheme,
+                            sal_Bool ReplaceExisting )
+{
+    osl::MutexGuard aGuard(m_aMutex);
+
+    ProviderMap_Impl::iterator aIt;
+    try
+    {
+        aIt = m_aProviders.find(Scheme);
+    }
+    catch (const IllegalArgumentException&)
+    {
+        return nullptr; //@@@
+    }
+
+    Reference< XContentProvider > xPrevious;
+    if (aIt == m_aProviders.end())
+    {
+        ProviderList_Impl aList;
+        aList.push_front( ProviderListEntry_Impl(Provider) );
+        try
+        {
+            m_aProviders.add(Scheme, aList);
+        }
+        catch (const IllegalArgumentException&)
+        {
+            return nullptr; //@@@
+        }
+    }
+    else
+    {
+        if (!ReplaceExisting)
+            throw DuplicateProviderException();
+
+        ProviderList_Impl & rList = aIt->getValue();
+        xPrevious = rList.front().getProvider();
+        rList.push_front( ProviderListEntry_Impl(Provider) );
+    }
+
+    return xPrevious;
+}
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::deregisterContentProvider(
+                              const Reference< XContentProvider >& Provider,
+                            const OUString& Scheme )
+{
+    osl::MutexGuard aGuard(m_aMutex);
+
+    ProviderMap_Impl::iterator aMapIt;
+    try
+    {
+        aMapIt = m_aProviders.find(Scheme);
+    }
+    catch (const IllegalArgumentException&)
+    {
+        return; //@@@
+    }
+
+    if (aMapIt != m_aProviders.end())
+    {
+        ProviderList_Impl & rList = aMapIt->getValue();
+
+        auto aListIt = std::find_if(rList.begin(), rList.end(),
+            [&Provider](const ProviderListEntry_Impl& rEntry) { return rEntry.getProvider() == Provider; });
+        if (aListIt != rList.end())
+            rList.erase(aListIt);
+
+        if (rList.empty())
+            m_aProviders.erase(aMapIt);
+    }
+}
+
+
+// virtual
+css::uno::Sequence< ContentProviderInfo > SAL_CALL
+                            UniversalContentBroker::queryContentProviders()
+{
+    // Return a list with information about active(!) content providers.
+
+    osl::MutexGuard aGuard(m_aMutex);
+
+    css::uno::Sequence< ContentProviderInfo > aSeq( m_aProviders.size() );
+    ContentProviderInfo* pInfo = aSeq.getArray();
+
+    ProviderMap_Impl::const_iterator end = m_aProviders.end();
+    for (ProviderMap_Impl::const_iterator it(m_aProviders.begin()); it != end;
+         ++it)
+    {
+        // Note: Active provider is always the first list element.
+        pInfo->ContentProvider = it->getValue().front().getProvider();
+        pInfo->Scheme = it->getRegexp();
+        ++pInfo;
+    }
+
+    return aSeq;
+}
+
+
+// virtual
+Reference< XContentProvider > SAL_CALL
+        UniversalContentBroker::queryContentProvider( const OUString&
+                                                          Identifier )
+{
+    return queryContentProvider( Identifier, false );
+}
+
+
+// XContentProvider methods.
+
+
+// virtual
+Reference< XContent > SAL_CALL UniversalContentBroker::queryContent(
+                        const Reference< XContentIdentifier >& Identifier )
+{
+
+    // Let the content provider for the scheme given with the content
+    // identifier create the XContent instance.
+
+
+    if ( !Identifier.is() )
+        return Reference< XContent >();
+
+    Reference< XContentProvider > xProv =
+        queryContentProvider( Identifier->getContentIdentifier(), true );
+    if ( xProv.is() )
+        return  xProv->queryContent( Identifier );
+
+    return Reference< XContent >();
+}
+
+
+// virtual
+sal_Int32 SAL_CALL UniversalContentBroker::compareContentIds(
+                                const Reference< XContentIdentifier >& Id1,
+                                const Reference< XContentIdentifier >& Id2 )
+{
+    OUString aURI1( Id1->getContentIdentifier() );
+    OUString aURI2( Id2->getContentIdentifier() );
+
+    Reference< XContentProvider > xProv1
+                            = queryContentProvider( aURI1, true );
+    Reference< XContentProvider > xProv2
+                            = queryContentProvider( aURI2, true );
+
+    // When both identifiers belong to the same provider, let that provider
+    // compare them; otherwise, simply compare the URI strings (which must
+    // be different):
+    if ( xProv1.is() && ( xProv1 == xProv2 ) )
+        return xProv1->compareContentIds( Id1, Id2 );
+    else
+        return aURI1.compareTo( aURI2 );
+}
+
+
+// XContentIdentifierFactory methods.
+
+
+// virtual
+Reference< XContentIdentifier > SAL_CALL
+        UniversalContentBroker::createContentIdentifier(
+                                            const OUString& ContentId )
+{
+
+    // Let the content provider for the scheme given with content
+    // identifier create the XContentIdentifier instance, if he supports
+    // the XContentIdentifierFactory interface. Otherwise create standard
+    // implementation object for XContentIdentifier.
+
+
+    Reference< XContentIdentifier > xIdentifier;
+
+    Reference< XContentProvider > xProv
+                            = queryContentProvider( ContentId, true );
+    if ( xProv.is() )
+    {
+        Reference< XContentIdentifierFactory > xFac( xProv, UNO_QUERY );
+        if ( xFac.is() )
+            xIdentifier = xFac->createContentIdentifier( ContentId );
+    }
+
+    if ( !xIdentifier.is() )
+        xIdentifier = new ContentIdentifier( ContentId );
+
+    return xIdentifier;
+}
+
+
+// XCommandProcessor methods.
+
+
+// virtual
+sal_Int32 SAL_CALL UniversalContentBroker::createCommandIdentifier()
+{
+    osl::MutexGuard aGuard( m_aMutex );
+
+    // Just increase counter on every call to generate an identifier.
+    return ++m_nCommandId;
+}
+
+
+// virtual
+Any SAL_CALL UniversalContentBroker::execute(
+                          const Command& aCommand,
+                          sal_Int32,
+                          const Reference< XCommandEnvironment >& Environment )
+{
+    Any aRet;
+
+
+    // Note: Don't forget to adapt ucb_commands::CommandProcessorInfo
+    //       ctor in ucbcmds.cxx when adding new commands!
+
+
+    if ( ( aCommand.Handle == GETCOMMANDINFO_HANDLE ) || aCommand.Name == GETCOMMANDINFO_NAME )
+    {
+
+        // getCommandInfo
+
+
+        aRet <<= getCommandInfo();
+    }
+    else if ( ( aCommand.Handle == GLOBALTRANSFER_HANDLE ) || aCommand.Name == GLOBALTRANSFER_NAME )
+    {
+
+        // globalTransfer
+
+
+        GlobalTransferCommandArgument2 aTransferArg;
+        if ( !( aCommand.Argument >>= aTransferArg ) )
+        {
+            GlobalTransferCommandArgument aArg;
+            if ( !( aCommand.Argument >>= aArg ) )
+            {
+                ucbhelper::cancelCommandExecution(
+                    Any( IllegalArgumentException(
+                                    "Wrong argument type!",
+                                    static_cast< cppu::OWeakObject * >( this ),
+                                    -1 ) ),
+                    Environment );
+                // Unreachable
+            }
+
+            // Copy infos into the new structure
+            aTransferArg.Operation = aArg.Operation;
+            aTransferArg.SourceURL = aArg.SourceURL;
+            aTransferArg.TargetURL = aArg.TargetURL;
+            aTransferArg.NewTitle = aArg.NewTitle;
+            aTransferArg.NameClash = aArg.NameClash;
+        }
+
+        globalTransfer( aTransferArg, Environment );
+    }
+    else if ( ( aCommand.Handle == CHECKIN_HANDLE ) || aCommand.Name == CHECKIN_NAME )
+    {
+        ucb::CheckinArgument aCheckinArg;
+        if ( !( aCommand.Argument >>= aCheckinArg ) )
+        {
+            ucbhelper::cancelCommandExecution(
+                Any( IllegalArgumentException(
+                                "Wrong argument type!",
+                                static_cast< cppu::OWeakObject * >( this ),
+                                -1 ) ),
+                Environment );
+            // Unreachable
+        }
+        aRet = checkIn( aCheckinArg, Environment );
+    }
+    else
+    {
+
+        // Unknown command
+
+
+        ucbhelper::cancelCommandExecution(
+            Any( UnsupportedCommandException(
+                            OUString(),
+                            static_cast< cppu::OWeakObject * >( this ) ) ),
+            Environment );
+        // Unreachable
+    }
+
+    return aRet;
+}
+
+
+// XCommandProcessor2 methods.
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::releaseCommandIdentifier(sal_Int32 /*aCommandId*/)
+{
+    // @@@ Not implemented ( yet).
+}
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::abort( sal_Int32 )
+{
+    // @@@ Not implemented ( yet).
+}
+
+
+// XChangesListener methods
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::changesOccurred( const util::ChangesEvent& Event )
+{
+    if ( !Event.Changes.hasElements() )
+        return;
+
+    uno::Reference< container::XHierarchicalNameAccess > xHierNameAccess;
+    Event.Base >>= xHierNameAccess;
+
+    OSL_ASSERT( xHierNameAccess.is() );
+
+    ContentProviderDataList aData;
+    for ( const util::ElementChange& rElem : Event.Changes )
+    {
+        OUString aKey;
+        rElem.Accessor >>= aKey;
+
+        ContentProviderData aInfo;
+
+        // Removal of UCPs from the configuration leads to changesOccurred
+        // notifications, too, but it is hard to tell for a given
+        // ElementChange whether it is an addition or a removal, so as a
+        // heuristic consider as removals those that cause a
+        // NoSuchElementException in createContentProviderData.
+
+        // For now, removal of UCPs from the configuration is simply ignored
+        // (and not reflected in the UCB's data structures):
+        if (createContentProviderData(aKey, xHierNameAccess, aInfo))
+        {
+            aData.push_back(aInfo);
+        }
+    }
+
+    prepareAndRegister(aData);
+}
+
+
+// XEventListener methods
+
+
+// virtual
+void SAL_CALL UniversalContentBroker::disposing(const lang::EventObject&)
+{
+    if ( m_xNotifier.is() )
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+
+        if ( m_xNotifier.is() )
+            m_xNotifier.clear();
+    }
+}
+
+
+// Non-interface methods
+
+
+Reference< XContentProvider > UniversalContentBroker::queryContentProvider(
+                                const OUString& Identifier,
+                                bool bResolved )
+{
+    osl::MutexGuard aGuard( m_aMutex );
+
+    ProviderList_Impl const * pList = m_aProviders.map( Identifier );
+    return pList ? bResolved ? pList->front().getResolvedProvider()
+                             : pList->front().getProvider()
+                 : Reference< XContentProvider >();
+}
+
+void UniversalContentBroker::configureUcb()
+{
+    OUString aKey1;
+    OUString aKey2;
+    if (m_aArguments.getLength() < 2
+        || !(m_aArguments[0] >>= aKey1) || !(m_aArguments[1] >>= aKey2))
+    {
+        OSL_FAIL("UniversalContentBroker::configureUcb(): Bad arguments");
+        return;
+    }
+
+    ContentProviderDataList aData;
+    if (!getContentProviderData(aKey1, aKey2, aData))
+    {
+        SAL_WARN( "ucb", "No configuration");
+        return;
+    }
+
+    prepareAndRegister(aData);
+}
+
+void UniversalContentBroker::prepareAndRegister(
+    const ContentProviderDataList& rData)
+{
+    for (const auto& rContentProviderData : rData)
+    {
+        OUString aProviderArguments;
+        if (fillPlaceholders(rContentProviderData.Arguments,
+                             m_aArguments,
+                             &aProviderArguments))
+        {
+            registerAtUcb(this,
+                          m_xContext,
+                          rContentProviderData.ServiceName,
+                          aProviderArguments,
+                          rContentProviderData.URLTemplate);
+
+        }
+        else
+            OSL_FAIL("UniversalContentBroker::prepareAndRegister(): Bad argument placeholders");
+    }
+}
+
+
+bool UniversalContentBroker::getContentProviderData(
+            const OUString & rKey1,
+            const OUString & rKey2,
+            ContentProviderDataList & rListToFill )
+{
+    if ( !m_xContext.is() || rKey1.isEmpty() || rKey2.isEmpty() )
+    {
+        OSL_FAIL( "UniversalContentBroker::getContentProviderData - Invalid argument!" );
+        return false;
+    }
+
+    try
+    {
+        uno::Reference< lang::XMultiServiceFactory > xConfigProv =
+                configuration::theDefaultProvider::get( m_xContext );
+
+        OUStringBuffer aFullPath(128);
+        aFullPath.append(
+                "/org.openoffice.ucb.Configuration/ContentProviders"
+                "/['" );
+        makeAndAppendXMLName( aFullPath, rKey1 );
+        aFullPath.append( "']/SecondaryKeys/['" );
+        makeAndAppendXMLName( aFullPath, rKey2 );
+        aFullPath.append( "']/ProviderData" );
+
+        uno::Sequence<uno::Any> aArguments(comphelper::InitAnyPropertySequence(
+        {
+            {"nodepath", uno::Any(aFullPath.makeStringAndClear())}
+        }));
+
+        uno::Reference< uno::XInterface > xInterface(
+                xConfigProv->createInstanceWithArguments(
+                    "com.sun.star.configuration.ConfigurationAccess",
+                    aArguments ) );
+
+        if ( !m_xNotifier.is() )
+        {
+            m_xNotifier.set( xInterface, uno::UNO_QUERY_THROW );
+
+            m_xNotifier->addChangesListener( this );
+        }
+
+        uno::Reference< container::XNameAccess > xNameAccess(
+                                            xInterface, uno::UNO_QUERY_THROW );
+
+        const uno::Sequence< OUString > aElems = xNameAccess->getElementNames();
+
+        if ( aElems.hasElements() )
+        {
+            uno::Reference< container::XHierarchicalNameAccess >
+                                xHierNameAccess( xInterface, uno::UNO_QUERY_THROW );
+
+            // Iterate over children.
+            for ( const auto& rElem : aElems )
+            {
+
+                try
+                {
+
+                    ContentProviderData aInfo;
+
+                    OUStringBuffer aElemBuffer;
+                    aElemBuffer.append( "['" );
+                    makeAndAppendXMLName( aElemBuffer, rElem );
+                    aElemBuffer.append( "']" );
+
+                    OSL_VERIFY(
+                        createContentProviderData(
+                            aElemBuffer.makeStringAndClear(), xHierNameAccess,
+                            aInfo));
+
+                    rListToFill.push_back( aInfo );
+                }
+                catch (const container::NoSuchElementException&)
+                {
+                    // getByHierarchicalName
+                    OSL_FAIL( "UniversalContentBroker::getContentProviderData - "
+                                "caught NoSuchElementException!" );
+                }
+            }
+        }
+    }
+    catch (const uno::RuntimeException&)
+    {
+        TOOLS_WARN_EXCEPTION( "ucb", "" );
+        return false;
+    }
+    catch (const uno::Exception&)
+    {
+        // createInstance, createInstanceWithArguments
+
+        TOOLS_WARN_EXCEPTION( "ucb", "" );
+        return false;
+    }
+
+    return true;
+}
+
+
+// ProviderListEntry_Impl implementation.
+
+
+Reference< XContentProvider > const & ProviderListEntry_Impl::resolveProvider() const
+{
+    if ( !m_xResolvedProvider.is() )
+    {
+        Reference< XContentProviderSupplier > xSupplier(
+                                                    m_xProvider, UNO_QUERY );
+        if ( xSupplier.is() )
+            m_xResolvedProvider = xSupplier->getContentProvider();
+
+        if ( !m_xResolvedProvider.is() )
+            m_xResolvedProvider = m_xProvider;
+    }
+
+    return m_xResolvedProvider;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */