Пример #1
0
    public void startElement(String name, AttributeList atts) 
        throws org.xml.sax.SAXException
    {
        
        //-- strip namespace prefix
        int idx = name.indexOf(':');
        if (idx >= 0) {
            name = name.substring(idx+1);
        }

        StateInfo sInfo = null;
        
        boolean topLevel = false;
        //-- if we are currently in another element 
        //-- definition...flag as complex content
        if (!_siStack.isEmpty()) {
            sInfo = (StateInfo)_siStack.peek();
            sInfo.complex = true;
        }
        else {
            topLevel = true;
        }
        
        //-- create current holder for stateInformation
        sInfo = new StateInfo();
        sInfo.topLevel = topLevel;
        _siStack.push(sInfo);
        
        //-- create element definition
        sInfo.element = new ElementDecl(_schema, name);
        
        //-- create attributes
        for (int i = 0; i < atts.getLength(); i++) {
            
            String attName = atts.getName(i);
            
            //-- skip namespace declarations
            if (attName.equals(XMLNS)) continue;
            String prefix = "";
            idx = attName.indexOf(':');
            if (idx >= 0) {
                prefix = attName.substring(0, idx);
                attName = attName.substring(idx+1);
            }
            if (prefix.equals(XMLNS)) continue;
            
            AttributeDecl attr = new AttributeDecl(_schema, attName);
            
            //-- guess simple type
            String typeName = _nsPrefix + ':' + 
                DatatypeHandler.guessType(atts.getValue(i));
                
            attr.setSimpleTypeReference(typeName);
            
            sInfo.attributes.addElement(attr);
        }
        
    } //-- startElement
Пример #2
0
 /**
  * Merges the two element declarations. The resulting
  * merge is placed in ElementDecl e1.
  *
  * @param e1 the main ElementDecl 
  * @param e2 the secondary ElementDecl to merge with e1
 **/
 private void merge(ElementDecl e1, ElementDecl e2) 
     throws SchemaException
 {
     
     XMLType e1Type = e1.getType();
     XMLType e2Type = e2.getType();
      
     //-- Make sure types are not null and if so create them
     if (e1Type == null) {
         if (e2Type == null) return; //-- nothing to merge
         else {
             if (e2Type.isSimpleType()) {
                 e1.setType(e2Type);
             }
             else {
                 ComplexType cType = new ComplexType(_schema);
                 Group group = new Group();
                 group.setOrder(_defaultGroupOrder);
                 cType.addGroup(group);
                 e1.setType(cType);
                 e1Type = cType;
             }
         }
     }
     else if (e2Type == null) {
         if (e1Type.isSimpleType()) {
             e2.setType(e1Type);
         }
         else {
             ComplexType cType = new ComplexType(_schema);
             Group group = new Group();
             group.setOrder(_defaultGroupOrder);
             cType.addGroup(group);
             e2.setType(cType);
             e2Type = cType;
         }
     }
     
     //-- both simple types
     if (e1Type.isSimpleType() && e2Type.isSimpleType()) {
         if (!e1Type.getName().equals(e2Type.getName())) {
             String typeName = _nsPrefix + ':' +
                 DatatypeHandler.whichType(e1Type.getName(),
                     e2Type.getName());
             e1.setType(null);
             e1.setTypeReference(typeName);
         }
         return;
     }
     //-- e1 is simple, e2 is complex
     else if (e1Type.isSimpleType()) {
         ComplexType cType = new ComplexType(_schema);
         e1.setType(cType);
         Group group = new Group();
         group.setOrder(_defaultGroupOrder);
         cType.addGroup(group);
         cType.setContentType(ContentType.mixed);
         e1Type = cType;
         //-- do not return here...we need to now treat as both
         //-- were complex
     }
     //-- e2 is simple, e1 is complex
     else if (e2Type.isSimpleType()) {
         ComplexType cType = new ComplexType(_schema);
         e2.setType(cType);
         Group group = new Group();
         group.setOrder(_defaultGroupOrder);
         cType.addGroup(group);
         cType.setContentType(ContentType.mixed);
         e2Type = cType;
         //-- do not return here...we need to now treat as both
         //-- were complex
     }
     
     //-- both complex types
     ComplexType cType1 = (ComplexType)e1Type;
     ComplexType cType2 = (ComplexType)e2Type;
     
     //-- loop through all element/attribute declarations
     //-- of e2 and add them to e1 if they do not already exist
     //-- and mark them as optional
     
     Group e1Group = (Group) cType1.getParticle(0);
     if (e1Group == null) {
         e1Group = new Group();
         e1Group.setOrder(_defaultGroupOrder);
         cType1.addGroup(e1Group);
         
     }
     Group e2Group = (Group) cType2.getParticle(0);
     if (e2Group == null) {
         e2Group = new Group();
         e2Group.setOrder(_defaultGroupOrder);
         cType2.addGroup(e2Group);
         
     }
     
     Enumeration enum = e2Group.enumerate();
     while (enum.hasMoreElements()) {
         Particle particle = (Particle)enum.nextElement();
         if (particle.getStructureType() == Structure.ELEMENT) {
             ElementDecl element = (ElementDecl)particle;
             ElementDecl main = e1Group.getElementDecl(element.getName());
             if (main == null) {
                 e1Group.addElementDecl(element);
                 element.setMinOccurs(0);
             }
             else {
                 merge(main, element);
             }
         }
     }
     //-- add all attributes from type2
     enum = cType2.getAttributeDecls();
     
     while (enum.hasMoreElements()) {
         //-- check for attribute with same name
         AttributeDecl attNew =  (AttributeDecl)enum.nextElement();
                 
         String attName = attNew.getName();
         AttributeDecl attPrev = cType1.getAttributeDecl(attName);
         if (attPrev == null) {
             attNew.setUse(AttributeDecl.USE_OPTIONAL);
             cType1.addAttributeDecl(attNew);
         }
         else {
             String type1 = attPrev.getSimpleType().getName();
             String type2 = attNew.getSimpleType().getName();
             if (!type1.equals(type2)) {
                 String typeName = _nsPrefix + ':' + 
                     DatatypeHandler.whichType(type1, type2);
                 attPrev.setSimpleTypeReference(typeName);                        }
         }
     }
     
     //-- loop through all element/attribute declarations
     //-- of e1 and if they do not exist in e2, simply
     //-- mark them as optional
     enum = e1Group.enumerate();
     while (enum.hasMoreElements()) {
         Particle particle = (Particle)enum.nextElement();
         if (particle.getStructureType() == Structure.ELEMENT) {
             ElementDecl element = (ElementDecl)particle;
             if (e2Group.getElementDecl(element.getName()) == null) {
                 element.setMinOccurs(0);
             }
         }
     }
     
     
 } //-- merge