diff options
Diffstat (limited to 'desktop/source/deployment/registry/dp_backenddb.cxx')
| -rw-r--r-- | desktop/source/deployment/registry/dp_backenddb.cxx | 716 |
1 files changed, 716 insertions, 0 deletions
diff --git a/desktop/source/deployment/registry/dp_backenddb.cxx b/desktop/source/deployment/registry/dp_backenddb.cxx new file mode 100644 index 000000000000..becfc14d254d --- /dev/null +++ b/desktop/source/deployment/registry/dp_backenddb.cxx @@ -0,0 +1,716 @@ +/* -*- 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. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_desktop.hxx" + +#include "rtl/string.h" +#include "rtl/strbuf.hxx" +#include "rtl/bootstrap.hxx" +#include "cppuhelper/exc_hlp.hxx" +#include "osl/file.hxx" +#include "com/sun/star/uno/XComponentContext.hpp" +#include "com/sun/star/xml/dom/XDocumentBuilder.hpp" +#include "com/sun/star/xml/xpath/XXPathAPI.hpp" +#include "com/sun/star/io/XActiveDataSource.hpp" +#include "com/sun/star/io/XActiveDataControl.hpp" +#include "dp_ucb.h" +#include "dp_misc.h" +#include "ucbhelper/content.hxx" +#include "xmlscript/xml_helper.hxx" +#include "dp_backenddb.hxx" + + +namespace css = ::com::sun::star; +using namespace ::com::sun::star::uno; +using ::rtl::OUString; + + +namespace dp_registry { +namespace backend { + +BackendDb::BackendDb( + Reference<css::uno::XComponentContext> const & xContext, + ::rtl::OUString const & url): + m_xContext(xContext) +{ + m_urlDb = dp_misc::expandUnoRcUrl(url); +} + +void BackendDb::save() +{ + const Reference<css::io::XActiveDataSource> xDataSource(m_doc,css::uno::UNO_QUERY_THROW); + ::rtl::ByteSequence bytes; + xDataSource->setOutputStream(::xmlscript::createOutputStream(&bytes)); + const Reference<css::io::XActiveDataControl> xDataControl(m_doc,css::uno::UNO_QUERY_THROW); + xDataControl->start(); + + const Reference<css::io::XInputStream> xData( + ::xmlscript::createInputStream(bytes)); + ::ucbhelper::Content ucbDb(m_urlDb, 0); + ucbDb.writeStream(xData, true /*replace existing*/); +} + +css::uno::Reference<css::xml::dom::XDocument> BackendDb::getDocument() +{ + if (!m_doc.is()) + { + const Reference<css::xml::dom::XDocumentBuilder> xDocBuilder( + m_xContext->getServiceManager()->createInstanceWithContext( + OUSTR("com.sun.star.xml.dom.DocumentBuilder"), + m_xContext ), css::uno::UNO_QUERY); + if (!xDocBuilder.is()) + throw css::uno::RuntimeException( + OUSTR(" Could not create service com.sun.star.xml.dom.DocumentBuilder"), 0); + + ::osl::DirectoryItem item; + ::osl::File::RC err = ::osl::DirectoryItem::get(m_urlDb, item); + if (err == ::osl::File::E_None) + { + ::ucbhelper::Content descContent( + m_urlDb, css::uno::Reference<css::ucb::XCommandEnvironment>()); + Reference<css::io::XInputStream> xIn = descContent.openStream(); + m_doc = xDocBuilder->parse(xIn); + } + else if (err == ::osl::File::E_NOENT) + { + //Create a new document and insert some basic stuff + m_doc = xDocBuilder->newDocument(); + const Reference<css::xml::dom::XElement> rootNode = + m_doc->createElementNS(getDbNSName(), getNSPrefix() + + OUSTR(":") + getRootElementName()); + + m_doc->appendChild(Reference<css::xml::dom::XNode>( + rootNode, UNO_QUERY_THROW)); + save(); + } + else + throw css::uno::RuntimeException( + OUSTR("Extension manager could not access database file:" ) + + m_urlDb, 0); + + if (!m_doc.is()) + throw css::uno::RuntimeException( + OUSTR("Extension manager could not get root node of data base file: ") + + m_urlDb, 0); + } + + return m_doc; +} + +Reference<css::xml::xpath::XXPathAPI> BackendDb::getXPathAPI() +{ + if (!m_xpathApi.is()) + { + m_xpathApi = Reference< css::xml::xpath::XXPathAPI >( + m_xContext->getServiceManager()->createInstanceWithContext( + OUSTR("com.sun.star.xml.xpath.XPathAPI"), + m_xContext), css::uno::UNO_QUERY); + + if (!m_xpathApi.is()) + throw css::uno::RuntimeException( + OUSTR(" Could not create service com.sun.star.xml.xpath.XPathAPI"), 0); + + m_xpathApi->registerNS( + getNSPrefix(), getDbNSName()); + } + + return m_xpathApi; +} + +void BackendDb::removeElement(::rtl::OUString const & sXPathExpression) +{ + try + { + const Reference<css::xml::dom::XDocument> doc = getDocument(); + const Reference<css::xml::dom::XNode> root = doc->getFirstChild(); + const Reference<css::xml::xpath::XXPathAPI> xpathApi = getXPathAPI(); + //find the extension element that is to be removed + const Reference<css::xml::dom::XNode> aNode = + xpathApi->selectSingleNode(root, sXPathExpression); + + if (aNode.is()) + { + root->removeChild(aNode); + save(); + } + +#if OSL_DEBUG_LEVEL > 0 + //There must not be any other entry with the same url + const Reference<css::xml::dom::XNode> nextNode = + xpathApi->selectSingleNode(root, sXPathExpression); + OSL_ASSERT(! nextNode.is()); +#endif + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to write data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +void BackendDb::removeEntry(::rtl::OUString const & url) +{ + const OUString sKeyElement = getKeyElementName(); + const OUString sPrefix = getNSPrefix(); + ::rtl::OUStringBuffer sExpression(500); + sExpression.append(sPrefix); + sExpression.appendAscii(":"); + sExpression.append(sKeyElement); + sExpression.append(OUSTR("[@url = \"")); + sExpression.append(url); + sExpression.appendAscii("\"]"); + + removeElement(sExpression.makeStringAndClear()); +} + +void BackendDb::revokeEntry(::rtl::OUString const & url) +{ + try + { + Reference<css::xml::dom::XElement> entry = Reference<css::xml::dom::XElement>(getKeyElement(url), UNO_QUERY); + if (entry.is()) + { + entry->setAttribute(OUSTR("revoked"), OUSTR("true")); + save(); + } + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to revoke data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +bool BackendDb::activateEntry(::rtl::OUString const & url) +{ + try + { + bool ret = false; + Reference<css::xml::dom::XElement> entry = Reference<css::xml::dom::XElement>(getKeyElement(url), UNO_QUERY); + if (entry.is()) + { + //no attribute "active" means it is active, that is, registered. + entry->removeAttribute(OUSTR("revoked")); + save(); + ret = true; + } + return ret; + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to revoke data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +bool BackendDb::hasActiveEntry(::rtl::OUString const & url) +{ + try + { + bool ret = false; + Reference<css::xml::dom::XElement> entry = Reference<css::xml::dom::XElement>(getKeyElement(url), UNO_QUERY); + if (entry.is()) + { + OUString sActive = entry->getAttribute(OUSTR("revoked")); + if (!sActive.equals(OUSTR("true"))) + ret = true; + } + return ret; + + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to determine an active entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +Reference<css::xml::dom::XNode> BackendDb::getKeyElement( + ::rtl::OUString const & url) +{ + try + { + const OUString sPrefix = getNSPrefix(); + const OUString sKeyElement = getKeyElementName(); + ::rtl::OUStringBuffer sExpression(500); + sExpression.append(sPrefix); + sExpression.appendAscii(":"); + sExpression.append(sKeyElement); + sExpression.append(OUSTR("[@url = \"")); + sExpression.append(url); + sExpression.appendAscii("\"]"); + + const Reference<css::xml::dom::XDocument> doc = getDocument(); + const Reference<css::xml::dom::XNode> root = doc->getFirstChild(); + const Reference<css::xml::xpath::XXPathAPI> xpathApi = getXPathAPI(); + return xpathApi->selectSingleNode(root, sExpression.makeStringAndClear()); + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to read key element in backend db: ") + + m_urlDb, 0, exc); + } +} + +//Only writes the data if there is at least one entry +void BackendDb::writeVectorOfPair( + ::std::vector< ::std::pair< ::rtl::OUString, ::rtl::OUString > > const & vecPairs, + OUString const & sVectorTagName, + OUString const & sPairTagName, + OUString const & sFirstTagName, + OUString const & sSecondTagName, + css::uno::Reference<css::xml::dom::XNode> const & xParent) +{ + try{ + if (vecPairs.size() == 0) + return; + const OUString sNameSpace = getDbNSName(); + OSL_ASSERT(sNameSpace.getLength()); + const OUString sPrefix(getNSPrefix() + OUSTR(":")); + const Reference<css::xml::dom::XDocument> doc = getDocument(); + const Reference<css::xml::dom::XNode> root = doc->getFirstChild(); + + const Reference<css::xml::dom::XElement> vectorNode( + doc->createElementNS(sNameSpace, sPrefix + sVectorTagName)); + + xParent->appendChild( + Reference<css::xml::dom::XNode>( + vectorNode, css::uno::UNO_QUERY_THROW)); + typedef ::std::vector< ::std::pair< OUString, OUString > >::const_iterator CIT; + for (CIT i = vecPairs.begin(); i != vecPairs.end(); i++) + { + const Reference<css::xml::dom::XElement> pairNode( + doc->createElementNS(sNameSpace, sPrefix + sPairTagName)); + + vectorNode->appendChild( + Reference<css::xml::dom::XNode>( + pairNode, css::uno::UNO_QUERY_THROW)); + + const Reference<css::xml::dom::XElement> firstNode( + doc->createElementNS(sNameSpace, sPrefix + sFirstTagName)); + + pairNode->appendChild( + Reference<css::xml::dom::XNode>( + firstNode, css::uno::UNO_QUERY_THROW)); + + const Reference<css::xml::dom::XText> firstTextNode( + doc->createTextNode( i->first)); + + firstNode->appendChild( + Reference<css::xml::dom::XNode>( + firstTextNode, css::uno::UNO_QUERY_THROW)); + + const Reference<css::xml::dom::XElement> secondNode( + doc->createElementNS(sNameSpace, sPrefix + sSecondTagName)); + + pairNode->appendChild( + Reference<css::xml::dom::XNode>( + secondNode, css::uno::UNO_QUERY_THROW)); + + const Reference<css::xml::dom::XText> secondTextNode( + doc->createTextNode( i->second)); + + secondNode->appendChild( + Reference<css::xml::dom::XNode>( + secondTextNode, css::uno::UNO_QUERY_THROW)); + } + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to write data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +::std::vector< ::std::pair< OUString, OUString > > +BackendDb::readVectorOfPair( + Reference<css::xml::dom::XNode> const & parent, + OUString const & sListTagName, + OUString const & sPairTagName, + OUString const & sFirstTagName, + OUString const & sSecondTagName) +{ + try + { + OSL_ASSERT(parent.is()); + const OUString sPrefix(getNSPrefix() + OUSTR(":")); + const Reference<css::xml::xpath::XXPathAPI> xpathApi = getXPathAPI(); + const OUString sExprPairs( + sPrefix + sListTagName + OUSTR("/") + sPrefix + sPairTagName); + const Reference<css::xml::dom::XNodeList> listPairs = + xpathApi->selectNodeList(parent, sExprPairs); + + ::std::vector< ::std::pair< OUString, OUString > > retVector; + sal_Int32 length = listPairs->getLength(); + for (sal_Int32 i = 0; i < length; i++) + { + const Reference<css::xml::dom::XNode> aPair = listPairs->item(i); + const OUString sExprFirst(sPrefix + sFirstTagName + OUSTR("/text()")); + const Reference<css::xml::dom::XNode> first = + xpathApi->selectSingleNode(aPair, sExprFirst); + + const OUString sExprSecond(sPrefix + sSecondTagName + OUSTR("/text()")); + const Reference<css::xml::dom::XNode> second = + xpathApi->selectSingleNode(aPair, sExprSecond); + OSL_ASSERT(first.is() && second.is()); + + retVector.push_back(::std::make_pair( + first->getNodeValue(), second->getNodeValue())); + } + return retVector; + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to read data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +//Only writes the data if there is at least one entry +void BackendDb::writeSimpleList( + ::std::list< ::rtl::OUString> const & list, + OUString const & sListTagName, + OUString const & sMemberTagName, + Reference<css::xml::dom::XNode> const & xParent) +{ + try + { + if (list.size() == 0) + return; + const OUString sNameSpace = getDbNSName(); + const OUString sPrefix(getNSPrefix() + OUSTR(":")); + const Reference<css::xml::dom::XDocument> doc = getDocument(); + + const Reference<css::xml::dom::XElement> listNode( + doc->createElementNS(sNameSpace, sPrefix + sListTagName)); + + xParent->appendChild( + Reference<css::xml::dom::XNode>( + listNode, css::uno::UNO_QUERY_THROW)); + + typedef ::std::list<OUString>::const_iterator ITC_ITEMS; + for (ITC_ITEMS i = list.begin(); i != list.end(); i++) + { + const Reference<css::xml::dom::XNode> memberNode( + doc->createElementNS(sNameSpace, sPrefix + sMemberTagName), css::uno::UNO_QUERY_THROW); + + listNode->appendChild(memberNode); + + const Reference<css::xml::dom::XNode> textNode( + doc->createTextNode( *i), css::uno::UNO_QUERY_THROW); + + memberNode->appendChild(textNode); + } + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to write data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +//Writes only the element if is has a value. +//The prefix is automatically added to the element name +void BackendDb::writeSimpleElement( + OUString const & sElementName, OUString const & value, + Reference<css::xml::dom::XNode> const & xParent) +{ + try + { + if (value.getLength() == 0) + return; + const OUString sPrefix = getNSPrefix(); + const Reference<css::xml::dom::XDocument> doc = getDocument(); + const OUString sNameSpace = getDbNSName(); + const Reference<css::xml::dom::XNode> dataNode( + doc->createElementNS(sNameSpace, sPrefix + OUSTR(":") + sElementName), + UNO_QUERY_THROW); + xParent->appendChild(dataNode); + + const Reference<css::xml::dom::XNode> dataValue( + doc->createTextNode(value), UNO_QUERY_THROW); + dataNode->appendChild(dataValue); + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to write data entry(writeSimpleElement) in backend db: ") + + m_urlDb, 0, exc); + } + +} + +/** The key elements have an url attribute and are always children of the root + element. +*/ +Reference<css::xml::dom::XNode> BackendDb::writeKeyElement( + ::rtl::OUString const & url) +{ + try + { + const OUString sNameSpace = getDbNSName(); + const OUString sPrefix = getNSPrefix(); + const OUString sElementName = getKeyElementName(); + const Reference<css::xml::dom::XDocument> doc = getDocument(); + const Reference<css::xml::dom::XNode> root = doc->getFirstChild(); + + //Check if there are an entry with the same url. This can be the case if the + //the status of an XPackage is ambiguous. In this case a call to activateExtension + //(dp_extensionmanager.cxx), will register the package again. See also + //Package::processPackage_impl in dp_backend.cxx. + //A package can become + //invalid after its successful registration, for example if a second extension with + //the same service is installed. + const OUString sExpression( + sPrefix + OUSTR(":") + sElementName + OUSTR("[@url = \"") + url + OUSTR("\"]")); + const Reference<css::xml::dom::XNode> existingNode = + getXPathAPI()->selectSingleNode(root, sExpression); + if (existingNode.is()) + { + OSL_ASSERT(0); + //replace the existing entry. + removeEntry(url); + } + + const Reference<css::xml::dom::XElement> keyElement( + doc->createElementNS(sNameSpace, sPrefix + OUSTR(":") + sElementName)); + + keyElement->setAttribute(OUSTR("url"), url); + + const Reference<css::xml::dom::XNode> keyNode( + keyElement, UNO_QUERY_THROW); + root->appendChild(keyNode); + return keyNode; + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to write key element in backend db: ") + + m_urlDb, 0, exc); + } +} + +OUString BackendDb::readSimpleElement( + OUString const & sElementName, Reference<css::xml::dom::XNode> const & xParent) +{ + try + { + const OUString sPrefix = getNSPrefix(); + const OUString sExpr(sPrefix + OUSTR(":") + sElementName + OUSTR("/text()")); + const Reference<css::xml::xpath::XXPathAPI> xpathApi = getXPathAPI(); + const Reference<css::xml::dom::XNode> val = + xpathApi->selectSingleNode(xParent, sExpr); + if (val.is()) + return val->getNodeValue(); + return OUString(); + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to read data (readSimpleElement) in backend db: ") + + m_urlDb, 0, exc); + } +} + + +::std::list< OUString> BackendDb::readList( + Reference<css::xml::dom::XNode> const & parent, + OUString const & sListTagName, + OUString const & sMemberTagName) +{ + try + { + OSL_ASSERT(parent.is()); + const OUString sPrefix(getNSPrefix() + OUSTR(":")); + const Reference<css::xml::xpath::XXPathAPI> xpathApi = getXPathAPI(); + const OUString sExprList( + sPrefix + sListTagName + OUSTR("/") + sPrefix + sMemberTagName + OUSTR("/text()")); + const Reference<css::xml::dom::XNodeList> list = + xpathApi->selectNodeList(parent, sExprList); + + ::std::list<OUString > retList; + sal_Int32 length = list->getLength(); + for (sal_Int32 i = 0; i < length; i++) + { + const Reference<css::xml::dom::XNode> member = list->item(i); + retList.push_back(member->getNodeValue()); + } + return retList; + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to read data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +::std::list<OUString> BackendDb::getOneChildFromAllEntries( + OUString const & name) +{ + try + { + ::std::list<OUString> listRet; + Reference<css::xml::dom::XDocument> doc = getDocument(); + Reference<css::xml::dom::XNode> root = doc->getFirstChild(); + + Reference<css::xml::xpath::XXPathAPI> xpathApi = getXPathAPI(); + const OUString sPrefix = getNSPrefix(); + const OUString sKeyElement = getKeyElementName(); + ::rtl::OUStringBuffer buf(512); + buf.append(sPrefix); + buf.appendAscii(":"); + buf.append(sKeyElement); + buf.appendAscii("/"); + buf.append(sPrefix); + buf.appendAscii(":"); + buf.append(name); + buf.append(OUSTR("/text()")); + + Reference<css::xml::dom::XNodeList> nodes = + xpathApi->selectNodeList(root, buf.makeStringAndClear()); + if (nodes.is()) + { + sal_Int32 length = nodes->getLength(); + for (sal_Int32 i = 0; i < length; i++) + listRet.push_back(nodes->item(i)->getNodeValue()); + } + return listRet; + } + catch (css::deployment::DeploymentException& ) + { + throw; + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to read data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + + +RegisteredDb::RegisteredDb( + Reference<XComponentContext> const & xContext, + ::rtl::OUString const & url):BackendDb(xContext, url) +{ +} + +void RegisteredDb::addEntry(::rtl::OUString const & url) +{ + try{ + if (!activateEntry(url)) + { + const OUString sNameSpace = getDbNSName(); + const OUString sPrefix = getNSPrefix(); + const OUString sEntry = getKeyElementName(); + + Reference<css::xml::dom::XDocument> doc = getDocument(); + Reference<css::xml::dom::XNode> root = doc->getFirstChild(); + +#if OSL_DEBUG_LEVEL > 0 + //There must not be yet an entry with the same url + OUString sExpression( + sPrefix + OUSTR(":") + sEntry + OUSTR("[@url = \"") + url + OUSTR("\"]")); + Reference<css::xml::dom::XNode> _extensionNode = + getXPathAPI()->selectSingleNode(root, sExpression); + OSL_ASSERT(! _extensionNode.is()); +#endif + Reference<css::xml::dom::XElement> helpElement( + doc->createElementNS(sNameSpace, sPrefix + OUSTR(":") + sEntry)); + + helpElement->setAttribute(OUSTR("url"), url); + + Reference<css::xml::dom::XNode> helpNode( + helpElement, UNO_QUERY_THROW); + root->appendChild(helpNode); + + save(); + } + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to write data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +bool RegisteredDb::getEntry(::rtl::OUString const & url) +{ + try + { + const OUString sPrefix = getNSPrefix(); + const OUString sEntry = getKeyElementName(); + const OUString sExpression( + sPrefix + OUSTR(":") + sEntry + OUSTR("[@url = \"") + url + OUSTR("\"]")); + Reference<css::xml::dom::XDocument> doc = getDocument(); + Reference<css::xml::dom::XNode> root = doc->getFirstChild(); + + Reference<css::xml::xpath::XXPathAPI> xpathApi = getXPathAPI(); + Reference<css::xml::dom::XNode> aNode = + xpathApi->selectSingleNode(root, sExpression); + + return aNode.is(); + } + catch(css::uno::Exception &) + { + Any exc( ::cppu::getCaughtException() ); + throw css::deployment::DeploymentException( + OUSTR("Extension Manager: failed to read data entry in backend db: ") + + m_urlDb, 0, exc); + } +} + +} // namespace backend +} // namespace dp_registry + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |