/*******************************************************************************
14.9.2 fn:parse-xml-fragment
********************************************************************************/
bool FnParseXmlFragmentIterator::nextImpl(
store::Item_t& result,
PlanState& planState) const
{
zstring docString;
FnParseXmlFragmentIteratorState* state;
DEFAULT_STACK_INIT(FnParseXmlFragmentIteratorState, state, planState);
if (consumeNext(result, theChildren[0].getp(), planState))
{
if (result->isStreamable())
{
state->theFragmentStream.theStream = &result->getStream();
}
else
{
result->getStringValue2(docString);
state->theFragmentStream.theIss = new std::istringstream(docString.c_str());
state->theFragmentStream.theStream = state->theFragmentStream.theIss;
}
state->theProperties.setBaseUri(theSctx->get_base_uri());
state->theProperties.setParseExternalParsedEntity(true);
state->theProperties.setStoreDocument(false);
state->baseUri = state->theProperties.getBaseUri();
// create only one document node holding all fragment nodes
state->theFragmentStream.only_one_doc_node = 1;
try
{
result = GENV.getStore().loadDocument(state->baseUri,
state->docUri,
state->theFragmentStream,
state->theProperties);
}
catch ( ZorbaException const &e )
{
if ( !state->theProperties.getNoError() )
{
XQueryException xe(
XQUERY_EXCEPTION(err::FODC0006,
ERROR_PARAMS( "fn:parse-xml-fragment()", e.what() ),
ERROR_LOC( loc )));
set_data( xe, e );
throw xe;
}
result = nullptr;
}
if (result != NULL)
STACK_PUSH(true, state);
} // if
STACK_END(state);
}
/*******************************************************************************
14.9.1.1 fn-zorba-xml:canonicalize
********************************************************************************/
bool FnZorbaCanonicalizeIterator::nextImpl(store::Item_t& result, PlanState& planState) const
{
zstring lDocString;
xmlDocPtr lDoc;
xmlChar* lResult;
std::istream* lInstream = NULL;
char buf[1024];
store::Item_t tempItem;
FnZorbaCanonicalizeIteratorState* state;
DEFAULT_STACK_INIT(FnZorbaCanonicalizeIteratorState, state, planState);
// Read the XML string
// if the XML string is a streamable string it will have to be materialized
// since the libxml2 xmlReadMemory functions can't work with streamable strings
consumeNext(result, theChildren[0].getp(), planState);
// read options
if (theChildren.size() == 2)
{
consumeNext(tempItem, theChildren[1].getp(), planState);
zorba::processOptions(tempItem, state->theProperties, theSctx, loc);
}
try
{
if (result->isStreamable())
{
lInstream = &result->getStream();
while (lInstream->good())
{
lInstream->read(buf, 1024);
lDocString.append(buf, static_cast<zstring::size_type>(lInstream->gcount()));
}
}
else
{
result->getStringValue2(lDocString);
}
int lOptions = XML_PARSE_NOERROR | state->theProperties.toLibXmlOptions();
lDoc = xmlReadMemory(lDocString.c_str(), lDocString.size(), "input.xml", NULL, lOptions);
if (!lDoc)
{
zstring lErrorMsg;
lErrorMsg = "\"" + lDocString + "\"";
throw XQUERY_EXCEPTION(err::FOCZ0001, ERROR_PARAMS("x:canonicalize()", lErrorMsg ), ERROR_LOC(loc));
}
xmlC14NDocDumpMemory(lDoc, NULL, 2/*XML_C14N_1_1*/, NULL, 1, &lResult);
lDocString = zstring((char*)lResult);
xmlFree(lResult);
xmlFreeDoc(lDoc);
}
catch ( std::exception const& )
{
zstring lErrorMsg;
lErrorMsg = "\"" + lDocString + "\"";
throw XQUERY_EXCEPTION(err::FOCZ0001, ERROR_PARAMS("x:canonicalize()", lErrorMsg ), ERROR_LOC(loc));
}
STACK_PUSH(GENV_ITEMFACTORY->createString(result, lDocString), state);
STACK_END(state);
}
bool FnZorbaParseXmlFragmentIterator::nextImpl(
store::Item_t& result,
PlanState& planState) const
{
store::Store& lStore = GENV.getStore();
zstring docString;
store::Item_t tempItem;
bool validated = true;
FnZorbaParseXmlFragmentIteratorState* state;
DEFAULT_STACK_INIT(FnZorbaParseXmlFragmentIteratorState, state, planState);
if (consumeNext(result, theChildren[0].getp(), planState))
{
if (result->isStreamable())
{
state->theFragmentStream.theStream = &result->getStream();
state->theFragmentStream.setStreamReleaser(result->getStreamReleaser());
result->setStreamReleaser(nullptr);
}
else
{
result->getStringValue2(docString);
state->theFragmentStream.theIss = new std::istringstream(docString.c_str());
state->theFragmentStream.theStream = state->theFragmentStream.theIss;
}
// read options
consumeNext(tempItem, theChildren[1].getp(), planState);
state->theProperties.setBaseUri(theSctx->get_base_uri());
state->theProperties.setStoreDocument(false);
state->theProperties.setUseCachedDocument(false);
processOptions(tempItem, state->theProperties, theSctx, loc);
state->theProperties.setCreateDocParentLink(false);
// baseURI serves both as the base URI used by the XML parser
// to resolve relative entity references within the document,
// and as the base URI of the document node that is returned.
state->baseUri = state->theProperties.getBaseUri();
state->docUri = state->theProperties.getBaseUri();
////////////////////////////////////////////////////////////////////////
// External parsed entity processing
////////////////////////////////////////////////////////////////////////
if (state->theProperties.getParseExternalParsedEntity())
{
state->theFragmentStream.root_elements_to_skip =
state->theProperties.getSkipRootNodes();
while ( ! state->theFragmentStream.stream_is_consumed())
{
try
{
result = lStore.loadDocument(state->baseUri,
state->docUri,
state->theFragmentStream,
state->theProperties);
}
catch ( ZorbaException const &e )
{
if ( !state->theProperties.getNoError() )
{
XQueryException xe(
XQUERY_EXCEPTION(
err::FODC0006,
ERROR_PARAMS( "parse-xml:parse()", e.what() ),
ERROR_LOC( loc )
)
);
set_data( xe, e );
throw xe;
}
result = nullptr;
}
if (result == NULL)
continue;
// Return the children of document node
state->theFragmentStream.children = result->getChildren();
while (state->theFragmentStream.children->next(result) && result != NULL)
{
if (state->theProperties.getSkipTopLevelTextNodes() && result->getNodeKind() == store::StoreConsts::textNode)
continue;
STACK_PUSH(true, state);
}
}
}
////////////////////////////////////////////////////////////////////////
// XML document processing
////////////////////////////////////////////////////////////////////////
else // if (!state->theProperties.getEnableExtParsedEntity())
{
try
{
result = lStore.loadDocument(state->baseUri, state->docUri, *state->theFragmentStream.theStream, state->theProperties);
}
catch ( ZorbaException const &e )
{
if ( !state->theProperties.getNoError() )
{
XQueryException xe(
XQUERY_EXCEPTION(
err::FODC0006,
ERROR_PARAMS( "parse-xml:parse()", e.what() ),
ERROR_LOC( loc )
)
);
set_data( xe, e );
throw xe;
}
result = nullptr;
}
if (result != NULL)
{
#ifndef ZORBA_NO_XMLSCHEMA
if (state->theProperties.getSchemaLaxValidate() ||
state->theProperties.getSchemaStrictValidate())
{
try
{
tempItem = NULL; // used as the effectiveValidationValue()'s typeName
validated = Validator::effectiveValidationValue(
result,
result,
tempItem,
theSctx->get_typemanager(),
state->theProperties.getSchemaLaxValidate() ? ParseConstants::val_lax : ParseConstants::val_strict,
theSctx,
this->loc);
}
catch (ZorbaException& /*e*/)
{
if ( ! state->theProperties.getNoError())
throw;
else
{
result = NULL;
validated = false;
}
}
}
#endif
// Ignore the schema validation options if Zorba is built without schema support
STACK_PUSH(validated, state);
} // if (result != NULL)
} // if (state->theProperties.getEnableExtParsedEntity())
} // if (consumeNext(result, theChildren[0].getp(), planState))
STACK_END(state);
}
