forms/source/xforms/submission/serialization_app_xml.cxx

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  27
  28 // MARKER(update_precomp.py): autogen include statement, do not remove
  29 #include "precompiled_forms.hxx"
  30
  31 #include "serialization.hxx"
  32 #include "serialization_app_xml.hxx"
  33
  34 #include <unotools/processfactory.hxx>
  35 #include <com/sun/star/xml/dom/XNode.hpp>
  36 #include <com/sun/star/xml/dom/XDocument.hpp>
  37 #include <com/sun/star/xml/dom/XNodeList.hpp>
  38 #include <com/sun/star/xml/dom/NodeType.hpp>
  39 #include <com/sun/star/lang/XUnoTunnel.hpp>
  40 #include <com/sun/star/xml/xpath/XPathObjectType.hpp>
  41
  42 #include <libxml/tree.h>
  43
  44 CSerializationAppXML::CSerializationAppXML()
  45     : m_aFactory(utl::getProcessServiceFactory())
  46     , m_aPipe(CSS::uno::Reference< CSS::io::XOutputStream > (m_aFactory->createInstance(
  47         rtl::OUString::createFromAscii("com.sun.star.io.Pipe")), CSS::uno::UNO_QUERY))
  48 {
  49     OSL_ENSURE(m_aPipe.is(), "cannot create Pipe");
  50 }
  51
  52 CSS::uno::Reference< CSS::io::XInputStream >
  53 CSerializationAppXML::getInputStream()
  54 {
  55     // The pipes output is provided through it's
  56     // XOutputStream interface aspect
  57     return CSS::uno::Reference< CSS::io::XInputStream >(m_aPipe, CSS::uno::UNO_QUERY);
  58 }
  59
  60 void
  61 CSerializationAppXML::serialize_node(const CSS::uno::Reference< CSS::xml::dom::XNode >& rNode)
  62 {
  63     CSS::uno::Reference< CSS::xml::dom::XNode > aNode = rNode;
  64     if (aNode->getNodeType() == CSS::xml::dom::NodeType_DOCUMENT_NODE)
  65     {
  66         CSS::uno::Reference< CSS::xml::dom::XDocument > aDoc(rNode, CSS::uno::UNO_QUERY_THROW);
  67         aNode = CSS::uno::Reference< CSS::xml::dom::XNode >(aDoc->getDocumentElement(), CSS::uno::UNO_QUERY_THROW);
  68     }
  69     if (aNode->getNodeType() != CSS::xml::dom::NodeType_ELEMENT_NODE)
  70         return;
  71
  72     // clone the node to a new document and serialize that document
  73     CSS::uno::Reference< CSS::lang::XUnoTunnel > aTunnel(aNode, CSS::uno::UNO_QUERY);
  74     if (aTunnel.is())
  75     {
  76         xmlNodePtr aNodePtr = reinterpret_cast< xmlNodePtr >( aTunnel->getSomething(CSS::uno::Sequence< sal_Int8 >()) );
  77         xmlDocPtr aDocPtr = xmlNewDoc((xmlChar*)"1.0");
  78         xmlNodePtr aDocNodePtr = xmlDocCopyNode(aNodePtr, aDocPtr, 1);
  79         if (aDocNodePtr != NULL) {
  80             xmlAddChild((xmlNodePtr)aDocPtr, aDocNodePtr);
  81             xmlChar *buffer = NULL;
  82             sal_Int32 size = 0;
  83             xmlDocDumpMemory(aDocPtr, &buffer, (int*)&size);
  84
  85             // write the xml into the pipe through it's XOutputStream interface
  86             m_aPipe->writeBytes(CSS::uno::Sequence< sal_Int8 >((sal_Int8*)buffer, size));
  87             xmlFree(buffer);
  88         }
  89
  90     } else {
  91         // can't get tunnel to native backend
  92         // logic for generic implementation could be implemented here...
  93         OSL_ENSURE(sal_False, "unkown dom implementation, cannot serialize");
  94         return;
  95     }
  96 }
  97
  98 /*
  99 void
 100 CSerializationAppXML::serialize_nodeset()
 101 {
 102     CSS::uno::Reference< CSS::xml::dom::XNodeList > aNodeList = m_aXPathObject->getNodeList();
 103     for (sal_Int32 i=0; i<aNodeList->getLength(); i++)
 104         serialize_node(aNodeList->item(i));
 105     m_aPipe->closeOutput();
 106 }
 107 */
 108
 109 void
 110 CSerializationAppXML::serialize()
 111 {
 112     if (!m_aFragment.is()) return;
 113
 114     CSS::uno::Reference< CSS::xml::dom::XNode > cur = m_aFragment->getFirstChild();
 115     while (cur.is())
 116     {
 117         serialize_node(cur);
 118         cur = cur->getNextSibling();
 119     }
 120     m_aPipe->closeOutput();
 121 }