コード例 #1
0
ファイル: XsdReader.java プロジェクト: kcrimson/modeshape
  protected Node processAttributeDeclaration(
      XSDAttributeDeclaration decl, Node parentNode, boolean isUse) throws RepositoryException {
    if (decl == null) {
      return null;
    }
    logger.debug(
        "Attribute declaration: '{0}' in ns '{1}' ", decl.getName(), decl.getTargetNamespace());

    Node attributeDeclarationNode =
        parentNode.addNode(decl.getName(), XsdLexicon.ATTRIBUTE_DECLARATION);
    attributeDeclarationNode.setProperty(XsdLexicon.NC_NAME, decl.getName());
    attributeDeclarationNode.setProperty(XsdLexicon.NAMESPACE, decl.getTargetNamespace());
    if (decl.isGlobal() && !isUse) {
      registerForSymbolSpace(
          ATTRIBUTE_DECLARATIONS,
          decl.getTargetNamespace(),
          decl.getName(),
          attributeDeclarationNode.getIdentifier());
    }
    XSDTypeDefinition type = decl.getType();
    if (type != null) {
      attributeDeclarationNode.setProperty(XsdLexicon.TYPE_NAME, type.getName());
      attributeDeclarationNode.setProperty(XsdLexicon.TYPE_NAMESPACE, type.getTargetNamespace());
    }
    processAnnotation(decl.getAnnotation(), attributeDeclarationNode);
    processNonSchemaAttributes(type, attributeDeclarationNode);
    return attributeDeclarationNode;
  }
コード例 #2
0
  /** Helper method for identifying if a given type is a built-in type. */
  public static boolean isBuiltInType(XSDTypeDefinition target) {

    XSDSchema schema = (XSDSchema) target.eContainer();
    if (!XSDConstants.SCHEMA_FOR_SCHEMA_URI_2001.equals(schema.getTargetNamespace())) {
      return false;
    }
    return xsdPrimitiveTypesNames.contains(target.getName());
  }
コード例 #3
0
ファイル: XsdReader.java プロジェクト: kcrimson/modeshape
  protected void processComplexTypeDefinition(XSDComplexTypeDefinition type, Node parentNode)
      throws RepositoryException {
    logger.debug("Complex type: '{0}' in ns '{1}' ", type.getName(), type.getTargetNamespace());
    boolean isAnonymous = type.getName() == null;

    String nodeName = isAnonymous ? XsdLexicon.COMPLEX_TYPE : type.getName();
    Node typeNode = parentNode.addNode(nodeName, XsdLexicon.COMPLEX_TYPE_DEFINITION);
    typeNode.setProperty(XsdLexicon.NAMESPACE, type.getTargetNamespace());
    if (!isAnonymous) {
      typeNode.setProperty(XsdLexicon.NC_NAME, type.getName());
      registerForSymbolSpace(
          TYPE_DEFINITIONS, type.getTargetNamespace(), type.getName(), typeNode.getIdentifier());
    }
    XSDTypeDefinition baseType = type.getBaseType();
    if (baseType == type) {
      // The base type is the anytype ...
      baseType =
          type.getSchema()
              .getSchemaForSchema()
              .resolveComplexTypeDefinition("http://www.w3.org/2001/XMLSchema", "anyType");
    }
    if (baseType != null) {
      typeNode.setProperty(XsdLexicon.BASE_TYPE_NAME, baseType.getName());
      typeNode.setProperty(XsdLexicon.BASE_TYPE_NAMESPACE, baseType.getTargetNamespace());
    }
    typeNode.setProperty(XsdLexicon.ABSTRACT, type.isAbstract());
    typeNode.setProperty(XsdLexicon.MIXED, type.isMixed());

    @SuppressWarnings("unchecked")
    List<XSDProhibitedSubstitutions> blocks = type.getBlock();
    processEnumerators(blocks, typeNode, XsdLexicon.BLOCK);

    @SuppressWarnings("unchecked")
    List<XSDSimpleFinal> finalFacets = type.getFinal();
    processEnumerators(finalFacets, typeNode, XsdLexicon.FINAL);

    processComplexTypeContent(type.getContent(), typeNode);

    processAnnotation(type.getAnnotation(), typeNode);
    processNonSchemaAttributes(type, typeNode);
  }
コード例 #4
0
ファイル: XsdReader.java プロジェクト: kcrimson/modeshape
  protected Node processElementDeclaration(XSDElementDeclaration decl, Node parentNode)
      throws RepositoryException {
    if (decl == null) {
      return null;
    }
    logger.debug(
        "Element declaration: '{0}' in ns '{1}' ", decl.getName(), decl.getTargetNamespace());
    Node declarationNode;
    if (decl.getName() != null) {
      // Normal element declaration ...
      declarationNode = parentNode.addNode(decl.getName(), XsdLexicon.ELEMENT_DECLARATION);
      declarationNode.setProperty(XsdLexicon.NC_NAME, decl.getName());
      declarationNode.setProperty(XsdLexicon.NAMESPACE, decl.getTargetNamespace());
    } else {
      assert decl.isFeatureReference() : "expected element reference";
      XSDElementDeclaration resolved = decl.getResolvedElementDeclaration();
      declarationNode = parentNode.addNode(resolved.getName(), XsdLexicon.ELEMENT_DECLARATION);
      declarationNode.setProperty(XsdLexicon.REF_NAME, resolved.getName());
      declarationNode.setProperty(XsdLexicon.REF_NAMESPACE, resolved.getTargetNamespace());
      setReference(
          declarationNode,
          XsdLexicon.REF,
          ELEMENT_DECLARATION,
          resolved.getTargetNamespace(),
          resolved.getName());
    }
    if (decl.isGlobal()) {
      registerForSymbolSpace(
          ELEMENT_DECLARATION,
          decl.getTargetNamespace(),
          decl.getName(),
          declarationNode.getIdentifier());
    }

    declarationNode.setProperty(XsdLexicon.ABSTRACT, decl.isAbstract());
    declarationNode.setProperty(XsdLexicon.NILLABLE, decl.isNillable());

    XSDTypeDefinition type = decl.getType();
    if (type != null) {
      declarationNode.setProperty(XsdLexicon.TYPE_NAME, type.getName());
      declarationNode.setProperty(XsdLexicon.TYPE_NAMESPACE, type.getTargetNamespace());
      setReference(
          declarationNode,
          XsdLexicon.TYPE_REFERENCE,
          TYPE_DEFINITIONS,
          type.getTargetNamespace(),
          type.getName());
    }

    if (decl.getAnonymousTypeDefinition() == type) {
      // It's anonymous, so we need to process the definition here ...
      if (type instanceof XSDComplexTypeDefinition) {
        processComplexTypeDefinition((XSDComplexTypeDefinition) type, declarationNode);
      } else if (type instanceof XSDSimpleTypeDefinition) {
        processSimpleTypeDefinition((XSDSimpleTypeDefinition) type, declarationNode);
      }
    }
    processEnumerator(decl.getForm(), declarationNode, XsdLexicon.FORM);

    @SuppressWarnings("unchecked")
    List<XSDProhibitedSubstitutions> finals = decl.getLexicalFinal();
    processEnumerators(finals, declarationNode, XsdLexicon.FINAL);

    @SuppressWarnings("unchecked")
    List<XSDProhibitedSubstitutions> blocks = decl.getBlock();
    processEnumerators(blocks, declarationNode, XsdLexicon.BLOCK);

    processAnnotation(decl.getAnnotation(), declarationNode);
    processNonSchemaAttributes(type, declarationNode);
    return declarationNode;
  }
コード例 #5
0
ファイル: XsdReader.java プロジェクト: kcrimson/modeshape
  protected void processTypeFacets(
      XSDSimpleTypeDefinition type, Node typeNode, XSDTypeDefinition baseType)
      throws RepositoryException {
    if (baseType == null) {
      baseType = type.getBaseType();
    }
    if (baseType == type) {
      // The base type is the anytype ...
      baseType =
          type.getSchema()
              .getSchemaForSchema()
              .resolveSimpleTypeDefinition("http://www.w3.org/2001/XMLSchema", "anyType");
    }
    if (baseType != null) {
      typeNode.setProperty(XsdLexicon.BASE_TYPE_NAME, baseType.getName());
      typeNode.setProperty(XsdLexicon.BASE_TYPE_NAMESPACE, baseType.getTargetNamespace());
      setReference(
          typeNode,
          XsdLexicon.BASE_TYPE_REFERENCE,
          TYPE_DEFINITIONS,
          baseType.getTargetNamespace(),
          baseType.getName());
    }

    processFacet(
        type.getEffectiveMaxLengthFacet(), typeNode, XsdLexicon.MAX_LENGTH, PropertyType.LONG);
    processFacet(type.getMaxLengthFacet(), typeNode, XsdLexicon.MAX_LENGTH, PropertyType.LONG);
    processFacet(
        type.getEffectiveMinLengthFacet(), typeNode, XsdLexicon.MIN_LENGTH, PropertyType.LONG);
    processFacet(type.getMinLengthFacet(), typeNode, XsdLexicon.MIN_LENGTH, PropertyType.LONG);
    processFacet(
        type.getEffectiveMaxFacet(), typeNode, XsdLexicon.MAX_VALUE_EXCLUSIVE, PropertyType.LONG);
    processFacet(
        type.getMaxExclusiveFacet(), typeNode, XsdLexicon.MAX_VALUE_EXCLUSIVE, PropertyType.LONG);
    processFacet(
        type.getEffectiveMinFacet(), typeNode, XsdLexicon.MIN_VALUE_EXCLUSIVE, PropertyType.LONG);
    processFacet(
        type.getMinExclusiveFacet(), typeNode, XsdLexicon.MIN_VALUE_EXCLUSIVE, PropertyType.LONG);
    processFacet(
        type.getMaxInclusiveFacet(), typeNode, XsdLexicon.MAX_VALUE_INCLUSIVE, PropertyType.LONG);
    processFacet(
        type.getMinInclusiveFacet(), typeNode, XsdLexicon.MIN_VALUE_INCLUSIVE, PropertyType.LONG);
    processFacet(
        type.getEffectiveTotalDigitsFacet(), typeNode, XsdLexicon.TOTAL_DIGITS, PropertyType.LONG);
    processFacet(type.getTotalDigitsFacet(), typeNode, XsdLexicon.TOTAL_DIGITS, PropertyType.LONG);
    processFacet(
        type.getEffectiveFractionDigitsFacet(),
        typeNode,
        XsdLexicon.FRACTION_DIGITS,
        PropertyType.LONG);
    processFacet(
        type.getFractionDigitsFacet(), typeNode, XsdLexicon.FRACTION_DIGITS, PropertyType.LONG);

    processFacet(
        type.getEffectiveWhiteSpaceFacet(), typeNode, XsdLexicon.WHITESPACE, PropertyType.STRING);
    processFacet(type.getWhiteSpaceFacet(), typeNode, XsdLexicon.WHITESPACE, PropertyType.STRING);

    processFacet(
        type.getEffectivePatternFacet(), typeNode, XsdLexicon.PATTERN, PropertyType.STRING);
    @SuppressWarnings("unchecked")
    List<XSDPatternFacet> patternFacets = type.getPatternFacets();
    processFacetsList(patternFacets, typeNode, XsdLexicon.PATTERN);

    processFacet(
        type.getEffectiveEnumerationFacet(),
        typeNode,
        XsdLexicon.ENUMERATED_VALUES,
        PropertyType.STRING);
    @SuppressWarnings("unchecked")
    List<XSDEnumerationFacet> enumFacets = type.getEnumerationFacets();
    processFacetsList(enumFacets, typeNode, XsdLexicon.ENUMERATED_VALUES);

    @SuppressWarnings("unchecked")
    List<XSDSimpleFinal> finalFacets2 = type.getFinal();
    processEnumerators(finalFacets2, typeNode, XsdLexicon.FINAL);

    processAnnotation(type.getAnnotation(), typeNode);
  }
コード例 #6
0
  /**
   * Creates an {@link AttributeType} that matches the xsd type definition as much as possible.
   *
   * <p>The original type definition given by the {@link XSDTypeDefinition} is kept as
   * AttributeType's metadata stored as a "user data" property using <code>XSDTypeDefinition.class
   * </code> as key.
   *
   * <p>If it is a complex attribute, it will contain all the properties declared in the <code>
   * typeDefinition</code>, as well as all the properties declared in its super types. TODO: handle
   * the case where the extension mechanism is restriction.
   *
   * @param assignedName
   * @param typeDefinition
   * @return
   */
  private AttributeType createType(
      final Name assignedName,
      final XSDTypeDefinition typeDefinition,
      CoordinateReferenceSystem crs,
      boolean anonymous) {

    AttributeType attType;
    // /////////
    if (processingTypes.contains(assignedName)) {
      if (LOGGER.isLoggable(Level.FINE)) {
        LOGGER.fine("Recursion found for type " + assignedName + ". Proxying it.");
      }
      attType =
          createProxiedType(
              assignedName, typeDefinition, anonymous ? anonTypeRegistry : typeRegistry);
      return attType;
    }
    processingTypes.push(assignedName);
    // //////////

    final XSDTypeDefinition baseType = typeDefinition.getBaseType();

    AttributeType superType = null;
    if (baseType != null) {
      String targetNamespace = baseType.getTargetNamespace();
      String name = baseType.getName();
      if (name != null) {
        Name baseTypeName = new NameImpl(targetNamespace, name);
        superType = getAttributeType(baseTypeName, baseType, crs);
      }
    } else {
      LOGGER.warning(assignedName + " has no super type");
    }

    if (typeDefinition instanceof XSDComplexTypeDefinition) {
      XSDComplexTypeDefinition complexTypeDef;
      complexTypeDef = (XSDComplexTypeDefinition) typeDefinition;
      boolean includeParents = true;
      List<XSDElementDeclaration> children =
          Schemas.getChildElementDeclarations(typeDefinition, includeParents);

      final Collection<PropertyDescriptor> schema =
          new ArrayList<PropertyDescriptor>(children.size());

      XSDElementDeclaration childDecl;
      AttributeDescriptor descriptor;
      for (Iterator it = children.iterator(); it.hasNext(); ) {
        childDecl = (XSDElementDeclaration) it.next();
        try {
          descriptor = createAttributeDescriptor(complexTypeDef, childDecl, crs);
        } catch (NoSuchElementException e) {
          String msg =
              "Failed to create descriptor for '"
                  + childDecl.getTargetNamespace()
                  + "#"
                  + childDecl.getName()
                  + " from container '"
                  + typeDefinition.getTargetNamespace()
                  + "#"
                  + typeDefinition.getName()
                  + "'";
          NoSuchElementException nse = new NoSuchElementException(msg);
          nse.initCause(e);
          throw nse;
        }
        schema.add(descriptor);
      }

      if (includeAttributes) {
        for (XSDAttributeUse attgcontent : complexTypeDef.getAttributeUses()) {
          XSDAttributeDeclaration att = attgcontent.getContent();
          descriptor =
              createAttributeDescriptor(
                  getXmlAttributeType(),
                  null,
                  new NameImpl(null, "@" + att.getName()),
                  0,
                  1,
                  false,
                  null);
          schema.add(descriptor);
        }
      }

      // set substitution group for descriptors here
      for (XSDElementDeclaration elemDecl : children) {
        if (elemDecl.isElementDeclarationReference()) {
          elemDecl = elemDecl.getResolvedElementDeclaration();
        }
        PropertyDescriptor att = null;
        for (PropertyDescriptor desc : schema) {
          if (desc.getName().getLocalPart().equals(elemDecl.getName())
              && desc.getName().getNamespaceURI().equals(elemDecl.getTargetNamespace())) {
            att = desc;
            break;
          }
        }
        setSubstitutionGroup(complexTypeDef, elemDecl, att, crs);
      }
      attType = createComplexAttributeType(assignedName, schema, complexTypeDef, superType);
    } else {
      Class<?> binding = String.class;
      boolean isIdentifiable = false;
      boolean isAbstract = false;
      List<Filter> restrictions = Collections.emptyList();
      InternationalString description = null;
      attType =
          typeFactory.createAttributeType(
              assignedName,
              binding,
              isIdentifiable,
              isAbstract,
              restrictions,
              superType,
              description);
    }

    attType.getUserData().put(XSDTypeDefinition.class, typeDefinition);

    processingTypes.pop();

    // even if the type is anonymous, it still has to be registered somewhere because
    // it's needed for the proxied types to find them. That's why we have 2 registries,
    // typeRegistry
    // and anonTypeRegistry. TypeRegistry is the global one, since anonymous types are meant to
    // be
    // local and shouldn't be searchable.
    register(attType, anonymous);

    return attType;
  }
コード例 #7
0
  /**
   * If the type of elemDecl is annonymous creates a new type with the same name than the atrribute
   * and returns it. If it is not anonymous, looks it up on the registry and in case the type does
   * not exists in the registry uses a proxy.
   *
   * @param elemDecl
   * @return
   */
  private AttributeType getTypeOf(XSDElementDeclaration elemDecl, CoordinateReferenceSystem crs) {
    XSDTypeDefinition typeDefinition;

    // TODO REVISIT, I'm not sure this is the way to find out if the
    // element's type is defined in line (an thus no need to register it
    // as a global type)
    if (elemDecl.isElementDeclarationReference()) {
      elemDecl = elemDecl.getResolvedElementDeclaration();
    }
    boolean hasToBeRegistered = false;
    typeDefinition = elemDecl.getAnonymousTypeDefinition();
    if (typeDefinition == null) {
      // anonymous types already has type definition inline in the element
      // so the handling is different
      hasToBeRegistered = true;
      typeDefinition = elemDecl.getTypeDefinition();
    }

    if (typeDefinition == null) {
      // last resort.. look in the lazy schemas
      QName qname =
          Types.toQName(Types.typeName(elemDecl.getTargetNamespace(), elemDecl.getName()));
      for (SchemaIndex schemaIndex : schemas) {
        elemDecl = schemaIndex.getElementDeclaration(qname);
        if (elemDecl != null) {
          break;
        }
      }
      if (elemDecl != null) {
        if (elemDecl.isElementDeclarationReference()) {
          elemDecl = elemDecl.getResolvedElementDeclaration();
        }
        typeDefinition = elemDecl.getAnonymousTypeDefinition();
        if (typeDefinition == null) {
          typeDefinition = elemDecl.getTypeDefinition();
        }
      }
    }

    if (typeDefinition == null) {
      String msg =
          "The element declaration "
              + elemDecl.getTargetNamespace()
              + "#"
              + elemDecl.getName()
              + " has a null type definition, can't continue, fix it on the schema";
      LOGGER.warning(msg);
      throw new NoSuchElementException(msg);
    }

    AttributeType type;
    if (hasToBeRegistered) {
      String targetNamespace = typeDefinition.getTargetNamespace();
      String name = typeDefinition.getName();
      Name typeName = Types.typeName(targetNamespace, name);
      type = getAttributeType(typeName, typeDefinition, crs);
      if (type == null) {
        type = createType(typeName, typeDefinition, crs, false);
      }
    } else {
      String name = elemDecl.getName();
      String targetNamespace = elemDecl.getTargetNamespace();
      Name overrideName = Types.typeName(targetNamespace, name);
      type = createType(overrideName, typeDefinition, crs, true);
    }

    return type;
  }
コード例 #8
0
  private void setSubstitutionGroup(
      XSDComplexTypeDefinition container,
      XSDElementDeclaration elemDecl,
      PropertyDescriptor descriptor,
      CoordinateReferenceSystem crs) {

    if (descriptor.getUserData().get("substitutionGroup") != null) {
      // this has been done before
      return;
    }

    List<AttributeDescriptor> substitutionGroup = new ArrayList<AttributeDescriptor>();
    descriptor.getUserData().put("substitutionGroup", substitutionGroup);

    int minOccurs = Schemas.getMinOccurs(container, elemDecl);
    int maxOccurs = Schemas.getMaxOccurs(container, elemDecl);
    boolean nillable = elemDecl.isNillable();

    Iterator substitutions = elemDecl.getSubstitutionGroup().iterator();
    XSDElementDeclaration sub;
    while (substitutions.hasNext()) {
      sub = (XSDElementDeclaration) substitutions.next();
      if (!(sub.getName().equals(elemDecl.getName()))
          || !(sub.getTargetNamespace().equals(elemDecl.getTargetNamespace()))) {
        Name elemName = Types.typeName(sub.getTargetNamespace(), sub.getName());
        AttributeType type = getTypeOf(sub, crs);
        if (type != null) {
          substitutionGroup.add(
              createAttributeDescriptor(type, crs, elemName, minOccurs, maxOccurs, nillable, null));
        }
      }
    }

    XSDTypeDefinition typeDef = elemDecl.getType();

    if (typeDef instanceof XSDComplexTypeDefinition) {
      Name typeName = Types.typeName(typeDef.getTargetNamespace(), typeDef.getName());
      AttributeType attType = typeRegistry.get(typeName);

      if (!processingTypes.contains(typeName)) {
        // ignore processingTypes to avoid endless recursion
        if (attType == null || attType instanceof AbstractLazyComplexTypeImpl) {
          // type is not yet registered or it's a lazy type from foundation types
          // recreate lazy type to ensure everything is loaded
          // it will eventually call this method so substitution groups will be set then
          LOGGER.finest("Creating attribute type " + typeName);
          createType(typeName, typeDef, crs, false);
          LOGGER.finest("Registering attribute type " + typeName);
        } else if (attType instanceof ComplexType) {
          // ensure substitution groups are set for children including non lazy foundation
          // types
          ComplexType complexType = (ComplexType) attType;
          Collection<PropertyDescriptor> children = complexType.getDescriptors();

          List<XSDParticle> childParticles = Schemas.getChildElementParticles(typeDef, true);

          for (XSDParticle particle : childParticles) {
            XSDElementDeclaration element = (XSDElementDeclaration) particle.getContent();

            if (element.isElementDeclarationReference()) {
              element = element.getResolvedElementDeclaration();
            }
            PropertyDescriptor childDesc = null;
            for (PropertyDescriptor desc : children) {
              if (desc.getName().getLocalPart().equals(element.getName())
                  && desc.getName().getNamespaceURI().equals(element.getTargetNamespace())) {
                childDesc = desc;
                break;
              }
            }
            if (childDesc != null) {
              setSubstitutionGroup((XSDComplexTypeDefinition) typeDef, element, childDesc, crs);
            }
          }
        }
      }
    }
  }
コード例 #9
0
ファイル: Encoder.java プロジェクト: vitos1/geotools-2.7.x
  public void encode(Object object, QName name, ContentHandler handler)
      throws IOException, SAXException {

    // maintain a stack of (encoding,element declaration pairs)
    Stack encoded = null;

    try {
      serializer = handler;

      if (!inline) {
        serializer.startDocument();
      }

      if (namespaceAware) {
        // write out all the namespace prefix value mappings
        for (Enumeration e = namespaces.getPrefixes(); e.hasMoreElements(); ) {
          String prefix = (String) e.nextElement();
          String uri = namespaces.getURI(prefix);

          if ("xml".equals(prefix)) {
            continue;
          }
          serializer.startPrefixMapping(prefix, uri);
        }
        for (Iterator itr = schema.getQNamePrefixToNamespaceMap().entrySet().iterator();
            itr.hasNext(); ) {
          Map.Entry entry = (Map.Entry) itr.next();
          String pre = (String) entry.getKey();
          String ns = (String) entry.getValue();

          if (XSDUtil.SCHEMA_FOR_SCHEMA_URI_2001.equals(ns)) {
            continue;
          }

          serializer.startPrefixMapping(pre, ns);
          serializer.endPrefixMapping(pre);

          namespaces.declarePrefix((pre != null) ? pre : "", ns);
        }

        // ensure a default namespace prefix set
        if (namespaces.getURI("") == null) {
          namespaces.declarePrefix("", schema.getTargetNamespace());
        }
      }

      // create the document
      DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();

      try {
        doc = docFactory.newDocumentBuilder().newDocument();
      } catch (ParserConfigurationException e) {
        new IOException().initCause(e);
      }

      encoded = new Stack();

      // add the first entry
      XSDElementDeclaration root = index.getElementDeclaration(name);

      if (root == null) {
        // check for context hint, this is only used when running the encoder
        // in test mode
        QName typeDefintion =
            (QName) context.getComponentInstance("http://geotools.org/typeDefinition");

        if (typeDefintion != null) {
          XSDTypeDefinition type = index.getTypeDefinition(typeDefintion);

          if (type == null) {
            throw new NullPointerException();
          }

          // create a mock element declaration
          root = XSDFactory.eINSTANCE.createXSDElementDeclaration();
          root.setName(name.getLocalPart());
          root.setTargetNamespace(name.getNamespaceURI());
          root.setTypeDefinition(type);
        }
      }

      if (root == null) {
        String msg = "Could not find element declaration for:" + name;
        throw new IllegalArgumentException(msg);
      }

      encoded.add(new EncodingEntry(object, root, null));

      while (!encoded.isEmpty()) {
        EncodingEntry entry = (EncodingEntry) encoded.peek();

        if (entry.encoding != null) {
          // element has been started, get the next child
          if (!entry.children.isEmpty()) {
            Object[] child = (Object[]) entry.children.get(0);
            XSDElementDeclaration element = (XSDElementDeclaration) child[0];
            Iterator itr = (Iterator) child[1];

            if (itr.hasNext()) {
              Object next = itr.next();
              if (next == null) {
                logger.warning("Iterator returned null for " + element.getName());
              }

              // here we check for instanceof EncoderDelegate
              if (next instanceof EncoderDelegate) {
                // do not add entry to the stack, just delegate to encode
                try {
                  ((EncoderDelegate) next).encode(handler);
                } catch (Exception e) {
                  throw new RuntimeException(e);
                }
              } else {
                // add the next object to be encoded to the stack
                encoded.push(new EncodingEntry(next, element, entry));
              }
            } else {
              // iterator done, close it
              Object source = child[2];
              closeIterator(itr, source);

              // this child is done, remove from child list
              entry.children.remove(0);
            }
          } else {
            // no more children, finish the element
            end(entry.encoding);
            encoded.pop();

            // clean up the entry
            entry.object = null;
            entry.element = null;
            entry.encoding = null;
            entry.children = null;
            entry.parent = null;
          }
        } else {
          // start the encoding of the entry

          // first make sure the element is not abstract
          if (entry.element.isAbstract()) {
            // look for a non abstract substitute - substitution groups are subject to
            // changes over time, so we make a copy to avoid being hit with a
            // ConcurrentModificationException
            List sub = safeCopy(entry.element.getSubstitutionGroup());

            if (sub.size() > 0) {
              // match up by type
              List matches = new ArrayList();

              for (Iterator s = sub.iterator(); s.hasNext(); ) {
                XSDElementDeclaration e = (XSDElementDeclaration) s.next();

                if (e == null || e.equals(entry.element)) {
                  continue;
                }

                if (e.getName() == null) {
                  continue;
                }

                // look up hte binding
                Binding binding =
                    bindingLoader.loadBinding(
                        new QName(e.getTargetNamespace(), e.getName()), context);

                if (binding == null) {
                  // try the type
                  XSDTypeDefinition type = e.getType();

                  if (type == null || type.getName() == null) {
                    continue;
                  }

                  binding =
                      bindingLoader.loadBinding(
                          new QName(type.getTargetNamespace(), type.getName()), context);
                }

                if (binding == null) {
                  continue;
                }

                if (binding.getType() == null) {
                  logger.warning("Binding: " + binding.getTarget() + " returns null type.");
                  continue;
                }

                // match up the type
                if (binding.getType().isAssignableFrom(entry.object.getClass())) {
                  // we have a match, store as an (element,binding) tuple
                  matches.add(new Object[] {e, binding});
                }
              }

              // if one, we are gold
              if (matches.size() == 1) {
                entry.element = (XSDElementDeclaration) ((Object[]) matches.get(0))[0];
              }
              // if multiple we have a problem
              else if (matches.size() > 0) {
                if (logger.isLoggable(Level.FINE)) {
                  StringBuffer msg = new StringBuffer("Found multiple non-abstract bindings for ");
                  msg.append(entry.element.getName()).append(": ");

                  for (Iterator m = matches.iterator(); m.hasNext(); ) {
                    msg.append(m.next().getClass().getName());
                    msg.append(", ");
                  }

                  logger.fine(msg.toString());
                }

                // try sorting by the type of the binding
                Collections.sort(
                    matches,
                    new Comparator() {
                      public int compare(Object o1, Object o2) {
                        Object[] match1 = (Object[]) o1;
                        Object[] match2 = (Object[]) o2;

                        Binding b1 = (Binding) match1[1];
                        Binding b2 = (Binding) match2[1];

                        if (b1.getType() != b2.getType()) {
                          if (b2.getType().isAssignableFrom(b1.getType())) {
                            return -1;
                          }

                          if (b1.getType().isAssignableFrom(b2.getType())) {
                            return 1;
                          }
                        }

                        // use binding comparability
                        if (b1 instanceof Comparable) {
                          return ((Comparable) b1).compareTo(b2);
                        }

                        if (b2 instanceof Comparable) {
                          return -1 * ((Comparable) b2).compareTo(b1);
                        }

                        return 0;
                      }
                    });
              }

              if (matches.size() > 0) {
                entry.element = (XSDElementDeclaration) ((Object[]) matches.get(0))[0];
              }

              // if zero, just use the abstract element
            }
          }

          if (entry.element.isAbstract()) {
            logger.fine(entry.element.getName() + " is abstract");
          }

          entry.encoding =
              entry.parent != null
                  ? (Element) encode(entry.object, entry.element, entry.parent.element.getType())
                  : (Element) encode(entry.object, entry.element);

          // add any more attributes
          List attributes = index.getAttributes(entry.element);

          for (Iterator itr = attributes.iterator(); itr.hasNext(); ) {
            XSDAttributeDeclaration attribute = (XSDAttributeDeclaration) itr.next();

            // do not encode the attribute if it has already been
            // encoded by the parent
            String ns = attribute.getTargetNamespace();
            String local = attribute.getName();

            if ((entry.encoding.getAttributeNS(ns, local) != null)
                && !"".equals(entry.encoding.getAttributeNS(ns, local))) {
              continue;
            }

            // get the object(s) for this attribute
            GetPropertyExecutor executor = new GetPropertyExecutor(entry.object, attribute);

            BindingVisitorDispatch.walk(object, bindingWalker, entry.element, executor, context);

            if (executor.getChildObject() != null) {
              // encode the attribute
              Attr attr = (Attr) encode(executor.getChildObject(), attribute);

              if (attr != null) {
                entry.encoding.setAttributeNodeNS(attr);
              }
            }
          }

          // write out the leading edge of the element
          if (schemaLocations != null) {
            // root element, add schema locations if set
            if (!schemaLocations.isEmpty()) {
              // declare the schema instance mapping
              serializer.startPrefixMapping("xsi", XSDUtil.SCHEMA_INSTANCE_URI_2001);
              serializer.endPrefixMapping("xsi");
              namespaces.declarePrefix("xsi", XSDUtil.SCHEMA_INSTANCE_URI_2001);

              StringBuffer schemaLocation = new StringBuffer();

              for (Iterator e = schemaLocations.entrySet().iterator(); e.hasNext(); ) {
                Map.Entry tuple = (Map.Entry) e.next();
                String namespaceURI = (String) tuple.getKey();
                String location = (String) tuple.getValue();

                schemaLocation.append(namespaceURI + " " + location);

                if (e.hasNext()) {
                  schemaLocation.append(" ");
                }
              }

              entry.encoding.setAttributeNS(
                  XSDUtil.SCHEMA_INSTANCE_URI_2001,
                  "xsi:schemaLocation",
                  schemaLocation.toString());
            }

            schemaLocations = null;
          }

          start(entry.encoding, entry.element);

          // TODO: this method of getting at properties wont maintain order very well, need
          // to come up with a better system that is capable of hanlding feature types
          for (Iterator pe = propertyExtractors.iterator(); pe.hasNext(); ) {
            PropertyExtractor propertyExtractor = (PropertyExtractor) pe.next();

            if (propertyExtractor.canHandle(entry.object)) {
              List extracted = propertyExtractor.properties(entry.object, entry.element);
              O:
              for (Iterator e = extracted.iterator(); e.hasNext(); ) {
                Object[] tuple = (Object[]) e.next();
                XSDParticle particle = (XSDParticle) tuple[0];
                XSDElementDeclaration child = (XSDElementDeclaration) particle.getContent();

                // check for a comment
                if ((child != null)
                    && (COMMENT.getNamespaceURI().equals(child.getTargetNamespace()))
                    && COMMENT.getLocalPart().equals(child.getName())) {
                  comment(child.getElement());

                  continue;
                }

                if (child.isElementDeclarationReference()) {
                  child = child.getResolvedElementDeclaration();
                }

                // do not encode the element if the parent has already
                // been encoded by the parent
                String ns = child.getTargetNamespace();
                String local = child.getName();

                for (int i = 0; i < entry.encoding.getChildNodes().getLength(); i++) {
                  Node node = entry.encoding.getChildNodes().item(i);

                  if (node instanceof Element) {
                    if (ns != null) {
                      if (ns.equals(node.getNamespaceURI()) && local.equals(node.getLocalName())) {
                        continue O;
                      }
                    } else {
                      if (local.equals(node.getLocalName())) {
                        continue O;
                      }
                    }
                  }
                }

                Object obj = tuple[1];

                if (obj == null) {
                  if (particle.getMinOccurs() == 0) {
                    // cool
                  } else {
                    // log an error
                    logger.fine("Property " + ns + ":" + local + " not found but minoccurs > 0 ");
                  }

                  // skip this regardless
                  continue;
                }

                // figure out the maximum number of occurences
                int maxOccurs = 1;

                if (particle.isSetMaxOccurs()) {
                  maxOccurs = particle.getMaxOccurs();
                } else {
                  // look the containing group
                  if (particle.eContainer() instanceof XSDModelGroup) {
                    XSDModelGroup group = (XSDModelGroup) particle.eContainer();

                    if (group.eContainer() instanceof XSDParticle) {
                      XSDParticle cParticle = (XSDParticle) group.eContainer();

                      if (cParticle.isSetMaxOccurs()) {
                        maxOccurs = cParticle.getMaxOccurs();
                      }
                    }
                  }
                }

                if ((maxOccurs == -1) || (maxOccurs > 1)) {
                  // may have a collection or array, unwrap it
                  Iterator iterator = null;

                  if (obj instanceof Iterator) {
                    iterator = (Iterator) obj;
                  } else if (obj.getClass().isArray()) {
                    Object[] array = (Object[]) obj;
                    iterator = Arrays.asList(array).iterator();
                  } else if (obj instanceof Collection) {
                    Collection collection = (Collection) obj;
                    iterator = collection.iterator();
                  } else if (obj instanceof FeatureCollection) {
                    FeatureCollection collection = (FeatureCollection) obj;
                    iterator = collection.iterator();
                  } else {
                    iterator = new SingleIterator(obj);
                  }

                  entry.children.add(new Object[] {child, iterator, obj});
                } else {
                  // only one, just add the object
                  entry.children.add(new Object[] {child, new SingleIterator(obj), obj});
                }
              }
            }
          }
        }
      }

      if (!inline) {
        serializer.endDocument();
      }

    } finally {
      // cleanup
      index.destroy();

      // close any iterators still present in the stack, this will only occur in an exception
      // case
      if (encoded != null) {
        while (!encoded.isEmpty()) {
          EncodingEntry entry = (EncodingEntry) encoded.pop();
          if (!entry.children.isEmpty()) {
            Object[] child = (Object[]) entry.children.get(0);
            Iterator itr = (Iterator) child[1];
            try {
              closeIterator(itr, child[2]);
            } catch (Exception e) {
              // ignore, we are already in an error case.
            }
          }
        }
      }
      // TODO: there are probably other refences to elements of XSDScheam objects, we should
      // kill them too
    }
  }