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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/.
*/
#include <orcusfiltersimpl.hxx>
#include <orcusinterface.hxx>
#include <orcusxml.hxx>
#include <document.hxx>
#include <tokenarray.hxx>
#include <vcl/treelistbox.hxx>
#include <vcl/treelistentry.hxx>
#include <ucbhelper/content.hxx>
#include <o3tl/make_unique.hxx>
#include <sal/log.hxx>
#include <orcus/spreadsheet/import_interface.hpp>
#include <orcus/xml_structure_tree.hpp>
#include <orcus/xml_namespace.hpp>
#include <orcus/orcus_xml.hpp>
#include <orcus/global.hpp>
#include <orcus/sax_parser_base.hpp>
#include <orcus/stream.hpp>
#include <com/sun/star/ucb/XCommandEnvironment.hpp>
#include <comphelper/processfactory.hxx>
#include <string>
#include <sstream>
#define BUFFER_SIZE 4096
using namespace com::sun::star;
namespace {
ScOrcusXMLTreeParam::EntryData& setUserDataToEntry(
SvTreeListEntry& rEntry, ScOrcusXMLTreeParam::UserDataStoreType& rStore, ScOrcusXMLTreeParam::EntryType eType)
{
rStore.push_back(o3tl::make_unique<ScOrcusXMLTreeParam::EntryData>(eType));
rEntry.SetUserData(rStore.back().get());
return *rStore.back();
}
void setEntityNameToUserData(
ScOrcusXMLTreeParam::EntryData& rEntryData,
const orcus::xml_structure_tree::entity_name& entity, const orcus::xml_structure_tree::walker& walker)
{
rEntryData.mnNamespaceID = walker.get_xmlns_index(entity.ns);
}
OUString toString(const orcus::xml_structure_tree::entity_name& entity, const orcus::xml_structure_tree::walker& walker)
{
OUStringBuffer aBuf;
if (entity.ns)
{
// Namespace exists. Use the short version of the xml namespace name for display.
std::string aShortName = walker.get_xmlns_short_name(entity.ns);
aBuf.appendAscii(aShortName.c_str());
aBuf.append(':');
}
aBuf.append(OUString(entity.name.get(), entity.name.size(), RTL_TEXTENCODING_UTF8));
return aBuf.makeStringAndClear();
}
void populateTree(
SvTreeListBox& rTreeCtrl, orcus::xml_structure_tree::walker& rWalker,
const orcus::xml_structure_tree::entity_name& rElemName, bool bRepeat,
SvTreeListEntry* pParent, ScOrcusXMLTreeParam& rParam)
{
SvTreeListEntry* pEntry = rTreeCtrl.InsertEntry(toString(rElemName, rWalker), pParent);
if (!pEntry)
// Can this ever happen!?
return;
ScOrcusXMLTreeParam::EntryData& rEntryData = setUserDataToEntry(
*pEntry, rParam.m_UserDataStore,
bRepeat ? ScOrcusXMLTreeParam::ElementRepeat : ScOrcusXMLTreeParam::ElementDefault);
setEntityNameToUserData(rEntryData, rElemName, rWalker);
if (bRepeat)
{
// Recurring elements use different icon.
rTreeCtrl.SetExpandedEntryBmp(pEntry, rParam.maImgElementRepeat);
rTreeCtrl.SetCollapsedEntryBmp(pEntry, rParam.maImgElementRepeat);
}
if (pParent)
rTreeCtrl.Expand(pParent);
orcus::xml_structure_tree::entity_names_type aNames;
// Insert attributes.
rWalker.get_attributes(aNames);
orcus::xml_structure_tree::entity_names_type::const_iterator it = aNames.begin();
orcus::xml_structure_tree::entity_names_type::const_iterator itEnd = aNames.end();
for (; it != itEnd; ++it)
{
const orcus::xml_structure_tree::entity_name& rAttrName = *it;
SvTreeListEntry* pAttr = rTreeCtrl.InsertEntry(toString(rAttrName, rWalker), pEntry);
if (!pAttr)
continue;
ScOrcusXMLTreeParam::EntryData& rAttrData =
setUserDataToEntry(*pAttr, rParam.m_UserDataStore, ScOrcusXMLTreeParam::Attribute);
setEntityNameToUserData(rAttrData, rAttrName, rWalker);
rTreeCtrl.SetExpandedEntryBmp(pAttr, rParam.maImgAttribute);
rTreeCtrl.SetCollapsedEntryBmp(pAttr, rParam.maImgAttribute);
}
rTreeCtrl.Expand(pEntry);
rWalker.get_children(aNames);
// Non-leaf if it has child elements, leaf otherwise.
rEntryData.mbLeafNode = aNames.empty();
// Insert child elements recursively.
for (it = aNames.begin(), itEnd = aNames.end(); it != itEnd; ++it)
{
orcus::xml_structure_tree::element aElem = rWalker.descend(*it);
populateTree(rTreeCtrl, rWalker, *it, aElem.repeat, pEntry, rParam);
rWalker.ascend();
}
}
class TreeUpdateSwitch
{
SvTreeListBox& mrTreeCtrl;
public:
explicit TreeUpdateSwitch(SvTreeListBox& rTreeCtrl) : mrTreeCtrl(rTreeCtrl)
{
mrTreeCtrl.SetUpdateMode(false);
}
~TreeUpdateSwitch()
{
mrTreeCtrl.SetUpdateMode(true);
}
};
class InsertFieldPath
{
orcus::orcus_xml& mrFilter;
public:
explicit InsertFieldPath(orcus::orcus_xml& rFilter) : mrFilter(rFilter) {}
void operator() (const OString& rPath)
{
mrFilter.append_field_link(rPath.getStr());
}
};
void loadContentFromURL(const OUString& rURL, std::string& rStrm)
{
ucbhelper::Content aContent(
rURL, uno::Reference<ucb::XCommandEnvironment>(), comphelper::getProcessComponentContext());
uno::Reference<io::XInputStream> xStrm = aContent.openStream();
std::ostringstream aStrmBuf;
uno::Sequence<sal_Int8> aBytes;
size_t nBytesRead = 0;
do
{
nBytesRead = xStrm->readBytes(aBytes, BUFFER_SIZE);
const sal_Int8* p = aBytes.getConstArray();
aStrmBuf << std::string(p, p + nBytesRead);
}
while (nBytesRead == BUFFER_SIZE);
rStrm = aStrmBuf.str();
}
}
ScOrcusXMLContextImpl::ScOrcusXMLContextImpl(ScDocument& rDoc, const OUString& rPath) :
ScOrcusXMLContext(), mrDoc(rDoc), maPath(rPath) {}
ScOrcusXMLContextImpl::~ScOrcusXMLContextImpl() {}
void ScOrcusXMLContextImpl::loadXMLStructure(SvTreeListBox& rTreeCtrl, ScOrcusXMLTreeParam& rParam)
{
rParam.m_UserDataStore.clear();
std::string aStrm;
loadContentFromURL(maPath, aStrm);
if (aStrm.empty())
return;
orcus::xmlns_context cxt = maNsRepo.create_context();
orcus::xml_structure_tree aXmlTree(cxt);
try
{
aXmlTree.parse(&aStrm[0], aStrm.size());
TreeUpdateSwitch aSwitch(rTreeCtrl);
rTreeCtrl.Clear();
rTreeCtrl.SetDefaultCollapsedEntryBmp(rParam.maImgElementDefault);
rTreeCtrl.SetDefaultExpandedEntryBmp(rParam.maImgElementDefault);
orcus::xml_structure_tree::walker aWalker = aXmlTree.get_walker();
// Root element.
orcus::xml_structure_tree::element aElem = aWalker.root();
populateTree(rTreeCtrl, aWalker, aElem.name, aElem.repeat, nullptr, rParam);
}
catch (const orcus::sax::malformed_xml_error& e)
{
SAL_WARN("sc.orcus", "Malformed XML error: " << e.what());
}
catch (const std::exception& e)
{
SAL_WARN("sc.orcus", "parsing failed with an unknown error " << e.what());
}
}
namespace {
class SetNamespaceAlias
{
orcus::orcus_xml& mrFilter;
orcus::xmlns_repository& mrNsRepo;
public:
SetNamespaceAlias(orcus::orcus_xml& filter, orcus::xmlns_repository& repo) :
mrFilter(filter), mrNsRepo(repo) {}
void operator() (size_t index)
{
orcus::xmlns_id_t nsid = mrNsRepo.get_identifier(index);
if (nsid == orcus::XMLNS_UNKNOWN_ID)
return;
std::string alias = mrNsRepo.get_short_name(index);
mrFilter.set_namespace_alias(alias.c_str(), nsid);
}
};
}
void ScOrcusXMLContextImpl::importXML(const ScOrcusImportXMLParam& rParam)
{
ScOrcusFactory aFactory(mrDoc, true);
OString aSysPath = ScOrcusFiltersImpl::toSystemPath(maPath);
const char* path = aSysPath.getStr();
try
{
orcus::orcus_xml filter(maNsRepo, &aFactory, nullptr);
// Define all used namespaces.
std::for_each(rParam.maNamespaces.begin(), rParam.maNamespaces.end(), SetNamespaceAlias(filter, maNsRepo));
{
// Set cell links.
ScOrcusImportXMLParam::CellLinksType::const_iterator it = rParam.maCellLinks.begin();
ScOrcusImportXMLParam::CellLinksType::const_iterator itEnd = rParam.maCellLinks.end();
for (; it != itEnd; ++it)
{
const ScOrcusImportXMLParam::CellLink& rLink = *it;
OUString aTabName;
mrDoc.GetName(rLink.maPos.Tab(), aTabName);
filter.set_cell_link(
rLink.maPath.getStr(),
OUStringToOString(aTabName, RTL_TEXTENCODING_UTF8).getStr(),
rLink.maPos.Row(), rLink.maPos.Col());
}
}
{
// Set range links.
ScOrcusImportXMLParam::RangeLinksType::const_iterator it = rParam.maRangeLinks.begin();
ScOrcusImportXMLParam::RangeLinksType::const_iterator itEnd = rParam.maRangeLinks.end();
for (; it != itEnd; ++it)
{
const ScOrcusImportXMLParam::RangeLink& rLink = *it;
OUString aTabName;
mrDoc.GetName(rLink.maPos.Tab(), aTabName);
filter.start_range(
OUStringToOString(aTabName, RTL_TEXTENCODING_UTF8).getStr(),
rLink.maPos.Row(), rLink.maPos.Col());
std::for_each(rLink.maFieldPaths.begin(), rLink.maFieldPaths.end(), InsertFieldPath(filter));
filter.commit_range();
}
}
std::string content = orcus::load_file_content(path);
filter.read_stream(content.data(), content.size());
aFactory.finalize();
}
catch (const std::exception&)
{
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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