INTEGRATION: CWS jl49 (1.1.2); FILE ADDED

2006/12/14 09:04:26 jl 1.1.2.10: #i70481# crash when extension does not have description.xml
2006/12/01 15:19:31 sb 1.1.2.9: #i70481# Added getUpdateWebsiteUrl.
2006/11/28 14:14:36 sb 1.1.2.8: #i70481# Handle null element gracefully.
2006/11/27 13:11:05 sb 1.1.2.7: #i70481# Added XPackage.getIdentifier.
2006/11/24 10:38:00 sb 1.1.2.6: #i70481# Next step of dp_gui_updatedialog, various changes to related code.
2006/11/22 17:49:33 sb 1.1.2.5: #i70481# Cleaned up.
2006/11/22 10:34:32 jl 1.1.2.4: #i70481#
2006/11/20 12:41:05 sb 1.1.2.3: #i70481# Next step of dp_gui_updatedialog; various related improvements in other code.
2006/11/17 16:52:42 sb 1.1.2.2: #i70481# Next step of dp_gui_updatedialog; various related improvements in other code.
2006/11/16 14:20:13 sb 1.1.2.1: "#i70481# Moved extracting information from XML description element to DescriptionInfoset."

desktop/source/deployment/misc/dp_descriptioninfoset.cxx

+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: dp_descriptioninfoset.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: ihi $ $Date: 2006-12-20 14:28:31 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2006 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *    Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_desktop.hxx"
+
+#include "sal/config.h"
+
+#include "boost/optional.hpp"
+#include "com/sun/star/beans/Optional.hpp"
+#include "com/sun/star/lang/XMultiComponentFactory.hpp"
+#include "com/sun/star/uno/Reference.hxx"
+#include "com/sun/star/uno/RuntimeException.hpp"
+#include "com/sun/star/uno/Sequence.hxx"
+#include "com/sun/star/uno/XComponentContext.hpp"
+#include "com/sun/star/uno/XInterface.hpp"
+#include "com/sun/star/xml/dom/DOMException.hpp"
+#include "com/sun/star/xml/dom/XNode.hpp"
+#include "com/sun/star/xml/dom/XNodeList.hpp"
+#include "com/sun/star/xml/xpath/XXPathAPI.hpp"
+#include "cppuhelper/implbase1.hxx"
+#include "cppuhelper/weak.hxx"
+#include "rtl/ustring.h"
+#include "rtl/ustring.hxx"
+#include "sal/types.h"
+
+#include "dp_descriptioninfoset.hxx"
+
+namespace {
+
+namespace css = ::com::sun::star;
+
+class EmptyNodeList: public ::cppu::WeakImplHelper1< css::xml::dom::XNodeList >
+{
+public:
+    EmptyNodeList();
+
+    virtual ~EmptyNodeList();
+
+    virtual ::sal_Int32 SAL_CALL getLength() throw (css::uno::RuntimeException);
+
+    virtual css::uno::Reference< css::xml::dom::XNode > SAL_CALL
+    item(::sal_Int32 index) throw (css::uno::RuntimeException);
+
+private:
+    EmptyNodeList(EmptyNodeList &); // not defined
+    void operator =(EmptyNodeList &); // not defined
+};
+
+EmptyNodeList::EmptyNodeList() {}
+
+EmptyNodeList::~EmptyNodeList() {}
+
+::sal_Int32 EmptyNodeList::getLength() throw (css::uno::RuntimeException) {
+    return 0;
+}
+
+css::uno::Reference< css::xml::dom::XNode > EmptyNodeList::item(::sal_Int32)
+    throw (css::uno::RuntimeException)
+{
+    throw css::uno::RuntimeException(
+        ::rtl::OUString(
+            RTL_CONSTASCII_USTRINGPARAM(
+                "bad EmptyNodeList com.sun.star.xml.dom.XNodeList.item call")),
+        static_cast< ::cppu::OWeakObject * >(this));
+}
+
+::rtl::OUString getNodeValue(
+    css::uno::Reference< css::xml::dom::XNode > const & node)
+{
+    OSL_ASSERT(node.is());
+    try {
+        return node->getNodeValue();
+    } catch (css::xml::dom::DOMException & e) {
+        throw css::uno::RuntimeException(
+            (::rtl::OUString(
+                RTL_CONSTASCII_USTRINGPARAM(
+                    "com.sun.star.xml.dom.DOMException: ")) +
+             e.Message),
+            css::uno::Reference< css::uno::XInterface >());
+    }
+}
+
+}
+
+namespace dp_misc {
+
+DescriptionInfoset::DescriptionInfoset(
+    css::uno::Reference< css::uno::XComponentContext > const & context,
+    css::uno::Reference< css::xml::dom::XNode > const & element):
+    m_element(element)
+{
+    css::uno::Reference< css::lang::XMultiComponentFactory > manager(
+        context->getServiceManager(), css::uno::UNO_QUERY_THROW);
+    if (m_element.is()) {
+        m_xpath = css::uno::Reference< css::xml::xpath::XXPathAPI >(
+            manager->createInstanceWithContext(
+                ::rtl::OUString(
+                    RTL_CONSTASCII_USTRINGPARAM(
+                        "com.sun.star.xml.xpath.XPathAPI")),
+                context),
+            css::uno::UNO_QUERY_THROW);
+        m_xpath->registerNS(
+            ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("desc")),
+            element->getNamespaceURI());
+        m_xpath->registerNS(
+            ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("xlink")),
+            ::rtl::OUString(
+                RTL_CONSTASCII_USTRINGPARAM("http://www.w3.org/1999/xlink")));
+    }
+}
+
+DescriptionInfoset::~DescriptionInfoset() {}
+
+::boost::optional< ::rtl::OUString > DescriptionInfoset::getIdentifier() const {
+    return getOptionalValue(
+        ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("desc:identifier/@value")));
+}
+
+::rtl::OUString DescriptionInfoset::getVersion() const {
+    css::uno::Reference< css::xml::dom::XNode > n;
+    if (m_element.is()) {
+        n = m_xpath->selectSingleNode(
+            m_element,
+            ::rtl::OUString(
+                RTL_CONSTASCII_USTRINGPARAM("desc:version/@value")));
+    }
+    return n.is() ? getNodeValue(n) : ::rtl::OUString();
+}
+
+css::uno::Reference< css::xml::dom::XNodeList >
+DescriptionInfoset::getDependencies() const {
+    return m_element.is()
+        ? m_xpath->selectNodeList(
+            m_element,
+            ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("desc:dependencies/*")))
+        : new EmptyNodeList;
+}
+
+css::uno::Sequence< ::rtl::OUString >
+DescriptionInfoset::getUpdateInformationUrls() const {
+    return getUrls(
+        ::rtl::OUString(
+            RTL_CONSTASCII_USTRINGPARAM(
+                "desc:update-information/desc:src/@xlink:href")));
+}
+
+css::uno::Sequence< ::rtl::OUString >
+DescriptionInfoset::getUpdateDownloadUrls() const
+{
+    return getUrls(
+        ::rtl::OUString(
+            RTL_CONSTASCII_USTRINGPARAM(
+                "desc:update-download/desc:src/@xlink:href")));
+}
+
+::boost::optional< ::rtl::OUString > DescriptionInfoset::getUpdateWebsiteUrl()
+    const
+{
+    return getOptionalValue(
+        ::rtl::OUString(
+            RTL_CONSTASCII_USTRINGPARAM(
+                "desc:update-website/desc:src/@xlink:href")));
+}
+
+css::uno::Reference< css::xml::xpath::XXPathAPI > DescriptionInfoset::getXpath()
+    const
+{
+    return m_xpath;
+}
+
+::boost::optional< ::rtl::OUString > DescriptionInfoset::getOptionalValue(
+    ::rtl::OUString const & expression) const
+{
+    css::uno::Reference< css::xml::dom::XNode > n;
+    if (m_element.is()) {
+        n = m_xpath->selectSingleNode(m_element, expression);
+    }
+    return n.is()
+        ? ::boost::optional< ::rtl::OUString >(getNodeValue(n))
+        : ::boost::optional< ::rtl::OUString >();
+}
+
+css::uno::Sequence< ::rtl::OUString > DescriptionInfoset::getUrls(
+    ::rtl::OUString const & expression) const
+{
+    css::uno::Reference< css::xml::dom::XNodeList > ns;
+    if (m_element.is()) {
+        ns = m_xpath->selectNodeList(m_element, expression);
+    }
+    css::uno::Sequence< ::rtl::OUString > urls(ns.is() ? ns->getLength() : 0);
+    for (::sal_Int32 i = 0; i < urls.getLength(); ++i) {
+        urls[i] = getNodeValue(ns->item(i));
+    }
+    return urls;
+}
+
+}