Hi, It isn't for transformation because i need to create a Xml from an XSD and not parse an existant one. I use Xerces-J because it permits to validate dynamicly.
I have an Jtree (Java swing) which represents the DOM document. For each add modify or remove from TreeEditor i validate Dom and DOM Level 3 errorHandler permits me to add on Element is it has an eror , and i show red text for element with errors. http://www.nabble.com/file/p25060543/Example.jpg and for code : This is my class which creates Document and permit to serialize it or parse an other as input : package org.tdf.tpegPlugin.parser; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.Map; import org.apache.xerces.xs.ElementPSVI; import org.apache.xerces.xs.XSComplexTypeDefinition; import org.apache.xerces.xs.XSElementDeclaration; import org.apache.xerces.xs.XSTypeDefinition; import org.jdom.Namespace; import org.tdf.tpegPlugin.TpegPlugin; import org.tdf.tpegPlugin.exceptions.XSDValidationException; import org.tdf.tpegPlugin.types.AttributeDescriptor; import org.tdf.tpegPlugin.types.Descriptor; import org.tdf.tpegPlugin.types.ElementDescriptor; import org.tdf.tpegPlugin.util.PropertyConf; import org.tdf.tpegPlugin.util.XSDNameUtils; import org.w3c.dom.Attr; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import com.sun.xml.xsom.XSElementDecl; import com.sun.xml.xsom.XSSchema; import com.sun.xml.xsom.XSSchemaSet; public class DocumentBuilderFromXSD { public static Document document;//DOM document public Element root;//root element public ElementDescriptor rootDesc;//root element descriptor public XSSchemaSet schemaSet;//XSD schema representation public String rootName;//root name from property file private String defaultTargetNamespace = null;//defaultTargzetnamespace use to validate import. private DOMLSParser domParser; private ArrayList<String> namespacesList = new ArrayList<String>(); public static HashMap<String,String> namespaces = new HashMap<String, String>();//Map namespaceURI to their prefix public enum STATE{ LOAD,CREATE } public static STATE state= STATE.CREATE; /** * Constructor * @param rootName * @param schemaSet */ public DocumentBuilderFromXSD(String rootName,XSSchemaSet schemaSet){ this.rootName = rootName; this.schemaSet = schemaSet; domParser = new DOMLSParser(PropertyConf.getInstance().XSDRoot); createNamespace(); createDocument(); createRoot(); } /** * Extract namespaces from XSD schema, find if prefix are define in properties files and keep them in Map. */ public void createNamespace(){ defaultTargetNamespace = null; boolean isDefaultNamespaceFound = false; for(XSSchema schema : schemaSet.getSchemas()){ String names =schema.getTargetNamespace(); namespacesList.add(names); String prefix = PropertyConf.getInstance().getNamespace(names); if(prefix == null ) continue; if(prefix.equals("") && !isDefaultNamespaceFound){ defaultTargetNamespace = names; isDefaultNamespaceFound = true; } namespaces.put(names, prefix); } if(namespaces.get("http://www.w3.org/2001/XMLSchema-instance";) == null) namespaces.put("http://www.w3.org/2001/XMLSchema-instance","xsi";); } /** * Create a document object * using which we create a xml tree in memory */ private void createDocument() { document = domParser.createDocument(); } /** * Create the root Element from XSD schema */ private void createRoot(){ try{ rootDesc = getRoot(rootName); root = createElement(rootDesc ,null,-1); } catch(Exception e){ TpegPlugin.createDialog(e); } } /** * Find Root element in XSD and return it descriptor. * * @param name * @return element descriptor of root element from root name property * @throws XSDValidationException */ public ElementDescriptor getRoot(String name) throws XSDValidationException{ Collection<XSSchema> schemas = schemaSet.getSchemas(); Map<String,XSElementDecl> map; for(XSSchema schema : schemas){ map = schema.getElementDecls(); if( map != null && map.size()>0){ for (XSElementDecl decl : map.values()){ if(decl.getName().equals(name)) return new ElementDescriptor(decl,decl.getType()); } } } throw new XSDValidationException("Validation error, no root with name :"+name+" in XSD schema"); } /** * Load an XML file which should be valid * @param filePath */ public void loadXML(String filePath){ root=null; document = null; try{ document = loadAndValidate(filePath); } catch (Exception e) { TpegPlugin.createDialog(e); } if(document != null){ try{ rootDesc = getRoot(document.getDocumentElement().getNodeName()); } catch(Exception e){ TpegPlugin.createDialog(e); } root = document.getDocumentElement(); } } private Document loadAndValidate(String filePath) throws Exception{ // DOMParser builder = new DOMParser(); // // builder.setIgnoringElementContentWhitespace(true); // builder.setFeature("http://xml.org/sax/features/validation";, true); // builder.setFeature("http://apache.org/xml/features/validation/schema",true); // // builder.setFeature("http://apache.org/xml/features/dom/include-ignorable-whitespace",false); // builder.setProperty("http://apache.org/xml/properties/dom/document-class-name";, "org.apache.xerces.dom.PSVIDocumentImpl"); // // // if a targetNamespace is associated to the xsd, pass it to the parseur // if(defaultTargetNamespace != null){ // builder.setProperty("http://apache.org/xml/properties/schema/external-schemaLocation";, // defaultTargetNamespace+ " "+ PropertyConf.getInstance().XSDRoot); // } // else // builder.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation";, // PropertyConf.getInstance().XSDRoot); return domParser.parse(filePath); } /** * This method uses Xerces specific classes * prints the XML document to file. */ public void printToFile(String resultPath){ validate(null); String errors = domParser.getErrors(); if(errors.length()>0) TpegPlugin.createDialog(new Exception(errors.toString())); domParser.build(document, resultPath); } /** * Create an Element from element descriptor and add it to the parent Element at count index. * @param desc * @param parent * @param count * @return the Element create from the element desciptor and which has bee added to the parent */ public Element createElement(ElementDescriptor desc, Element parent,int count){ String prefix = namespaces.get(desc.getNamespaceURI()); if(prefix == null){ prefix = ""; namespaces.put(desc.getNamespaceURI(), ""); } // Namespace ns2 = Namespace.getNamespace(prefix,desc.getNamespaceURI()); Element child = document.createElementNS(desc.getNamespaceURI(), desc.getName() ); child.setPrefix(prefix); if(parent != null){ int index =0; NodeList children = parent.getChildNodes(); if (count >0){ for(int i=0;i<children.getLength();i++){ Node n = children.item(i); if(count == 0) break; if(n instanceof Element){ count--; } index++; } } Node before = children.item(index); parent.insertBefore(child, before); String parentURI = parent.getNamespaceURI() != null ? parent.getNamespaceURI() : ""; //Part which doesn't be ok. // if(!parentURI.equals(desc.getNamespaceURI())){ //// Attr xmlnsPrefix = document.createAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, prefix); //// xmlnsPrefix.setValue(desc.getNamespaceURI()); // parent.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI,prefix,desc.getNamespaceURI()); // } if(desc.extensionsTypes.size()>0){ prefix = namespaces.get("http://www.w3.org/2001/XMLSchema-instance";); // Namespace ns = Namespace.getNamespace(prefix,"http://www.w3.org/2001/XMLSchema-instance";); String attrName = XSDNameUtils.xsTypeNameWithPrefix(desc.getInstanciateTypeDescriptor()); Attr type = document.createAttributeNS("http://www.w3.org/2001/XMLSchema-instance";, "type"); type.setPrefix(prefix); type.setValue(attrName); child.setAttributeNodeNS(type); } } else document.appendChild(child); setMandatories(child,desc,validate(child)); return child; } /** * Find attributes for an element name and and attributees to the Java Element representation */ private void setMandatories(Element elt,ElementDescriptor desc,XSElementDeclaration type){ XSComplexTypeDefinition typeDef = null; if(type != null ){ short typeSh = type.getTypeDefinition().getTypeCategory(); if(typeSh == XSTypeDefinition.COMPLEX_TYPE) typeDef = (XSComplexTypeDefinition)type.getTypeDefinition(); } if(typeDef != null){ boolean isAbstract = typeDef.getAbstract(); System.out.println("Type of elt is abstract :"+isAbstract); } //Add attributes ArrayList<Descriptor> attributes = desc.getNextAttributes(null); AttributeDescriptor attr; for (Descriptor descriptor : attributes){ attr = (AttributeDescriptor)descriptor; if(attr.isRequired()){ Namespace ns = Namespace.getNamespace(namespaces.get(attr.getNamespaceURI()), attr.getNamespaceURI()); if(ns != null && !ns.getPrefix().equals("")) elt.setAttributeNS(attr.getNamespaceURI(), attr.getName(),attr.getValue()); else elt.setAttributeNS("",attr.getName(), attr.getValue()); } } //Add elements ArrayList<Descriptor> elements = desc.getNextElements(null); if(elements == null){ return; } ElementDescriptor eltDesc; for (Descriptor descriptor : elements){ eltDesc = (ElementDescriptor)descriptor; if(eltDesc.isMandatory()){ int count = 0; int size = elt.getChildNodes().getLength(); if(size>0) count = size; for(int i=0;i<eltDesc.minOccurs;i++){ createElement(eltDesc, elt,count); count++; } } } } public XSElementDeclaration validate(Element elt){ cleanErrors(document); document.normalizeDocument(); if(elt == null) return null; ElementPSVI elementPSVI=(ElementPSVI) elt; XSElementDeclaration declaration = elementPSVI.getElementDeclaration(); if(declaration==null){ System.out.println("declaration==null //4"); } return declaration; } private void cleanErrors(Node n){ NodeList list = n.getChildNodes(); if(list != null){ for(int i=0; i<list.getLength(); i++){ Node child = list.item(i); child.setUserData("errors", null, null); cleanErrors(child); } } NamedNodeMap map = n.getAttributes(); if(map != null){ for(int j=0;j<map.getLength();j++){ Node attr = map.item(j); attr.setUserData("errors", null, null); } n.setUserData("errors", null, null); } } } Mukul Gandhi wrote: > > do you already have the old XML format, and only transformation is > required, to the new format? if yes, I would try to do this with XSLT. > > if you are creating the new XML, as part of some program, where use of > Xerces-J is mandatory, then we must find way to solve this problem > with Xerces-J and an API like DOM (which looks like, you are using). > > I think, it would be good, if you can pls share some of the core logic > you have written using Xerces-J. I think, that would give us some > insight, about what could be wrong with the logic you have written. > > On Thu, Aug 20, 2009 at 2:27 PM, juho<j.houll...@gmail.com> wrote: >> >> Hello, >> >> I want to add namespaces declaration on parent if child and parent have >> different namespaces. >> My wish is to have output like that: >> >> <balise1 xmlns:tec="http://test1";> >> <tec:balise2 /> >> <tec:balise3 /> >> </balise> >> >> instead of what i have actually >> <balise1> >> <tec:balise2 xmlns:tec="http://test1"/> >> <tec:balise3 xmlns:tec="http://test1"/> >> </balise1> > > > > -- > Regards, > Mukul Gandhi > > --------------------------------------------------------------------- > To unsubscribe, e-mail: j-users-unsubscr...@xerces.apache.org > For additional commands, e-mail: j-users-h...@xerces.apache.org > > > -- View this message in context: http://www.nabble.com/Add-namespaces-declaration-to-parent-element.-tp25058380p25060543.html Sent from the Xerces - J - Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: j-users-unsubscr...@xerces.apache.org For additional commands, e-mail: j-users-h...@xerces.apache.org
