1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_forms.hxx" 26 27 #include "serialization.hxx" 28 #include "serialization_app_xml.hxx" 29 30 /** === begin UNO includes === **/ 31 #include <com/sun/star/xml/dom/XNode.hpp> 32 #include <com/sun/star/xml/dom/XDocument.hpp> 33 #include <com/sun/star/xml/dom/XNodeList.hpp> 34 #include <com/sun/star/xml/dom/NodeType.hpp> 35 #include <com/sun/star/lang/XUnoTunnel.hpp> 36 #include <com/sun/star/xml/xpath/XPathObjectType.hpp> 37 #include <com/sun/star/xml/sax/XSAXSerializable.hpp> 38 #include <com/sun/star/beans/StringPair.hpp> 39 #include <com/sun/star/io/XActiveDataSource.hpp> 40 #include <com/sun/star/xml/dom/XDocumentBuilder.hpp> 41 /** === end UNO includes === **/ 42 43 #include <tools/diagnose_ex.h> 44 #include <comphelper/processfactory.hxx> 45 46 #include <boost/scoped_ptr.hpp> 47 #include <limits> 48 49 /** === begin UNO using === **/ 50 using ::com::sun::star::uno::Reference; 51 using ::com::sun::star::uno::Exception; 52 using ::com::sun::star::uno::Sequence; 53 using ::com::sun::star::uno::RuntimeException; 54 using ::com::sun::star::uno::UNO_QUERY; 55 using ::com::sun::star::uno::UNO_QUERY_THROW; 56 using ::com::sun::star::uno::UNO_SET_THROW; 57 using ::com::sun::star::xml::dom::XNode; 58 using ::com::sun::star::xml::dom::XDocument; 59 using ::com::sun::star::xml::sax::XSAXSerializable; 60 using ::com::sun::star::beans::StringPair; 61 using ::com::sun::star::io::XActiveDataSource; 62 using ::com::sun::star::xml::dom::NodeType_DOCUMENT_NODE; 63 using ::com::sun::star::xml::dom::NodeType_ELEMENT_NODE; 64 using ::com::sun::star::xml::dom::XDocumentBuilder; 65 using ::com::sun::star::xml::sax::XDocumentHandler; 66 /** === end UNO using === **/ 67 68 CSerializationAppXML::CSerializationAppXML() 69 :m_aContext( ::comphelper::getProcessServiceFactory() ) 70 { 71 m_aContext.createComponent( "com.sun.star.io.Pipe", m_xBuffer ); 72 } 73 74 Reference< CSS::io::XInputStream > 75 CSerializationAppXML::getInputStream() 76 { 77 // The pipes output is provided through it's 78 // XOutputStream interface aspect 79 return Reference< CSS::io::XInputStream >(m_xBuffer, UNO_QUERY); 80 } 81 82 void 83 CSerializationAppXML::serialize_node(const Reference< XNode >& rNode) 84 { 85 try 86 { 87 Reference< XSAXSerializable > xSerializer( rNode, UNO_QUERY ); 88 if ( !xSerializer.is() ) 89 { 90 // ensure we have a "real" node 91 Reference< XNode > xNode = rNode; 92 if ( xNode->getNodeType() == NodeType_DOCUMENT_NODE ) 93 { 94 Reference< XDocument > const xDoc( xNode, UNO_QUERY_THROW ); 95 xNode.set( xDoc->getDocumentElement(), UNO_QUERY_THROW ); 96 } 97 ENSURE_OR_RETURN_VOID( xNode->getNodeType() == NodeType_ELEMENT_NODE, 98 "CSerializationAppXML::serialize_node: invalid node type!" ); 99 100 // create a new document 101 Reference< XDocumentBuilder > const xDocBuilder( 102 m_aContext.createComponent( "com.sun.star.xml.dom.DocumentBuilder" ), UNO_QUERY_THROW ); 103 Reference< XDocument > const xDocument( xDocBuilder->newDocument(), UNO_SET_THROW ); 104 105 // copy the to-be-serialized node 106 Reference< XNode > const xImportedNode( xDocument->importNode( xNode, true ), UNO_SET_THROW ); 107 xDocument->appendChild( xImportedNode ); 108 109 // ask the doc for the serializer 110 xSerializer.set( xDocument, UNO_QUERY ); 111 } 112 113 ENSURE_OR_RETURN_VOID( xSerializer.is(), 114 "CSerializationAppXML::serialize_node: no serialization access to the node/document!" ); 115 116 // create a SAXWriter to take the serialization events, and connect it to our pipe 117 Reference< XDocumentHandler > const xSaxWriter( 118 m_aContext.createComponent( "com.sun.star.xml.sax.Writer" ), UNO_QUERY_THROW ); 119 Reference< XActiveDataSource > const xDataSource( xSaxWriter, UNO_QUERY_THROW ); 120 xDataSource->setOutputStream( m_xBuffer ); 121 122 // do the serialization 123 xSerializer->serialize( xSaxWriter, Sequence< StringPair >() ); 124 } 125 catch( const Exception& ) 126 { 127 DBG_UNHANDLED_EXCEPTION(); 128 } 129 } 130 131 void 132 CSerializationAppXML::serialize() 133 { 134 if (!m_aFragment.is()) return; 135 136 Reference< XNode > cur = m_aFragment->getFirstChild(); 137 while (cur.is()) 138 { 139 serialize_node(cur); 140 cur = cur->getNextSibling(); 141 } 142 m_xBuffer->closeOutput(); 143 } 144