bundles/org.eclipse.wst.wsi/wsicore/org/eclipse/wst/wsi/internal/core/util/TypesRegistry.java - webservices/webtools.webservices - Git at Google

 /*******************************************************************************
  * Copyright (c) 2002-2005 IBM Corporation and others.
  * All rights reserved.   This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *   IBM - Initial API and implementation
  *******************************************************************************/
 package org.eclipse.wst.wsi.internal.core.util;

 import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

 import javax.wsdl.*;
 import javax.wsdl.Import;
 import javax.wsdl.Types;
 import javax.wsdl.extensions.ExtensibilityElement;
 import javax.wsdl.extensions.UnknownExtensibilityElement;
 import javax.wsdl.extensions.soap.*;
 import javax.xml.namespace.QName;

 import org.eclipse.wst.wsi.internal.core.WSITag;
 import org.eclipse.wst.wsi.internal.core.profile.validator.BaseValidator;
 import org.eclipse.wst.wsi.internal.core.wsdl.traversal.WSDLTraversal;
 import org.eclipse.wst.wsi.internal.core.wsdl.traversal.WSDLTraversalContext;
 import org.eclipse.wst.wsi.internal.core.wsdl.traversal.WSDLVisitor;
 import org.eclipse.wst.wsi.internal.core.xml.XMLUtils;
 import org.w3c.dom.Attr;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;


 /**
  * The class extracts XSD schema information from the given WSDL.
  *
  * @author Kulik
  */
 public final class TypesRegistry implements WSITag, WSDLVisitor
 {
   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(javax.wsdl.Part, java.lang.Object, org.wsi.wsdl.traversal.WSDLTraversalContext)
    */
   public void visit(Part obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(javax.wsdl.Service, java.lang.Object, org.wsi.wsdl.traversal.WSDLTraversalContext)
    */
   public void visit(Service obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Types, Object,
    * WSDLTraversalContext)
    */
   public void visit(Types obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Operation, Object,
    * WSDLTraversalContext)
    */
   public void visit(Operation obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Input, Object,
    * WSDLTraversalContext)
    */
   public void visit(Input obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Output, Object,
    * WSDLTraversalContext)
    */
   public void visit(Output obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Fault, Object,
    * WSDLTraversalContext)
    */
   public void visit(Fault obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Binding, Object,
    * WSDLTraversalContext)
    */
   public void visit(Binding obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingOperation, Object,
    * WSDLTraversalContext)
    */
   public void visit(
     BindingOperation obj,
     Object parent,
     WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingInput, Object,
    * WSDLTraversalContext)
    */
   public void visit(BindingInput obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingOutput, Object,
    * WSDLTraversalContext)
    */
   public void visit(BindingOutput obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingFault, Object,
    * WSDLTraversalContext)
    */
   public void visit(BindingFault obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Element, Object,
    * WSDLTraversalContext)
    */
   public void visit(Element obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Message, Object,
    * WSDLTraversalContext)
    */
   public void visit(Message obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Port, Object,
    * WSDLTraversalContext)
    */
   public void visit(Port obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(PortType, Object,
    * WSDLTraversalContext)
    */
   public void visit(PortType obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Definition, Object,
    * WSDLTraversalContext)
    */
   public void visit(Definition obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(ExtensibilityElement,
    * Object, WSDLTraversalContext)
    */
   public void visit(
     ExtensibilityElement obj,
     Object parent,
     WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPBinding, Object,
    * WSDLTraversalContext)
    */
   public void visit(SOAPBinding obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPBody, Object,
    * WSDLTraversalContext)
    */
   public void visit(SOAPBody obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPHeader, Object,
    * WSDLTraversalContext)
    */
   public void visit(SOAPHeader obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPHeaderFault, Object,
    * WSDLTraversalContext)
    */
   public void visit(
     SOAPHeaderFault obj,
     Object parent,
     WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPFault, Object,
    * WSDLTraversalContext)
    */
   public void visit(SOAPFault obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPOperation, Object,
    * WSDLTraversalContext)
    */
   public void visit(SOAPOperation obj, Object parent, WSDLTraversalContext ctx)
   {
   }

   private Map element2Type = new HashMap();
   private Set extendsArray = new HashSet();
   private Set usesWsdlArrayType = new HashSet();

   protected BaseValidator baseValidator = null;

   /**
    * Constructor creates the types registry. by the given WSDL definition
    * object.
    *
    * @param def a WSDL definition.
    * @param baseValidator a base validator.
    */
   public TypesRegistry(Definition def, BaseValidator baseValidator)
   {
     this.baseValidator = baseValidator;
     if (def == null)
       throw new IllegalArgumentException("Definition can not be null");

     WSDLTraversal traversal = new WSDLTraversal();
     //VisitorAdaptor.adapt(this);
     traversal.setVisitor(this);
     traversal.visitImport(true);

     processTypes(def.getTypes(), def.getDocumentBaseURI());
     traversal.traverse(def);
   }

   /**
    * Constructor creates the types registry by given WSDL types object and
    * location context URI.
    * @param types WSDL types object.
    * @param context location context URI.
    * @param baseValidator a base validator.
    */
   public TypesRegistry(
     Types types,
     String context,
     BaseValidator baseValidator)
   {
     this.baseValidator = baseValidator;
     processTypes(types, context);
   }

   /**
    * The method returns type's qname by given element's qname.
    * @param elementName a qualified element name.
    * @return type's qname by given element's qname.
    */
   public QName getType(QName elementName)
   {
     return (QName) element2Type.get(elementName);
   }

   /**
    * The method returns set of types which is array attribute.
    * @return set of types which is array attribute.
    */
   public Set getArrayTypes()
   {
     Set s = new HashSet();
     s.addAll((Collection) usesWsdlArrayType);
     s.addAll((Collection) extendsArray);
     return s;
   }

   /**
    * The method returns set of elements defined in types element.
    * @return set of elements defined in types element.
    */
   public Set getElementList()
   {
     return this.element2Type.keySet();
   }

   /**
    * The method returns true if the given type declares wsdl:arrayType
    * attribute within declaration.
    * @param type a type.
    * @return true if the given type declares wsdl:arrayType
    * attribute within declaration.
    */
   public boolean isUsesWSDLArrayType(QName type)
   {
     return usesWsdlArrayType.contains(type);
   }

   /**
    * The method returns true if given type extends soapenc:Array type.
    * @param type a type.
    * @return true if given type extends soapenc:Array type.
    */
   public boolean isExtendsArray(QName type)
   {
     return extendsArray.contains(type);
   }

   /* (non-Javadoc)
    * @see org.wsi.wsdl.traversal.WSDLVisitor#visit(javax.wsdl.Import, java.lang.Object, org.wsi.wsdl.traversal.WSDLTraversalContext)
    */
   public void visit(Import im, Object parent, WSDLTraversalContext ctx)
   {
     if (im.getDefinition() != null)
       processWSDL(im.getDefinition());
   }

   /**
    * Internal method processes WSDL definition.
    * @param def a WSDL definition.
    */
   private void processWSDL(Definition def)
   {
     if (def.getTypes() != null)
       processTypes(def.getTypes(), def.getDocumentBaseURI());
   }

   /**
    * Internal method processes WSDL types.
    * @param types WSDL types.
    * @param context a context.
    */
   private void processTypes(Types types, String context)
   {
     if (types == null)
       return;
     List exts = types.getExtensibilityElements();
     if (exts != null)
     {
       Iterator it = exts.iterator();
       while (it.hasNext())
       {
         ExtensibilityElement el = (ExtensibilityElement) it.next();
         if (el instanceof UnknownExtensibilityElement)
           searchForSchema(
             ((UnknownExtensibilityElement) el).getElement(),
             context);
       }
     }
   }

   /**
    * Internal method searches XSD schema declaration and XSD import
    * statements.
    * @param n
    * @param context
    */
   private void searchForSchema(Node n, String context)
   {
     while (n != null)
     {
       // searches for xsd:import element
       if (Node.ELEMENT_NODE == n.getNodeType())
       {
         // if xsd:schema element is found -> process schema
         if (XMLUtils.equals(n, ELEM_XSD_SCHEMA))
           processSchema(n, context);
         else
           // if xsd:import element is found -> load schema and process schema
           if (XMLUtils.equals(n, ELEM_XSD_IMPORT))
             loadSchema(n, context);
           // if xsd:include element is found -> load schema and process schema
           else if (XMLUtils.equals(n, ELEM_XSD_INCLUDE))
             loadSchema(n, context);
           else
             // else iterate element recursively
             searchForSchema(n.getFirstChild(), context);
       }
       n = n.getNextSibling();
     }
   }

   /**
    * Internal method loads XSD schema by using schema location and
    * location context.
    * @param importNode
    * @param context
    */
   private void loadSchema(Node importNode, String context)
   {
     Element im = (Element) importNode;
     Attr schemaLocation = XMLUtils.getAttribute(im, ATTR_XSD_SCHEMALOCATION);
     // try to parse imported XSD
     if (schemaLocation != null && schemaLocation.getValue() != null)
       try
       {
         // if any error or root element is not XSD schema -> error
         Document schema =
           baseValidator.parseXMLDocumentURL(
             schemaLocation.getValue(),
             context,
             null);
         if (XMLUtils.equals(schema.getDocumentElement(), ELEM_XSD_SCHEMA))
           processSchema(
             schema.getDocumentElement(),
             XMLUtils.createURLString(schemaLocation.getValue(), context));
       }
       catch (Throwable t)
       {
         //t.printStackTrace();
         // nothing. it's not a schema
       }
   }

   /**
    * Internal method processes XSD schema and retrieves types declaration from
    * it.
    * @param schema
    * @param context
    */
   private void processSchema(Node schema, String context)
   {
     Attr a = XMLUtils.getAttribute((Element) schema, ATTR_XSD_TARGETNAMESPACE);
     String targetNamespace = (a != null) ? a.getValue() : "";
     // iterate schema
     Node n = schema.getFirstChild();
     // !! we suppose that xsd:import element is occured only within xsd:schema element
     while (n != null)
     {
       if (Node.ELEMENT_NODE == n.getNodeType())
       {
         if (XMLUtils.equals(n, ELEM_XSD_ELEMENT))
         {
           Element el = (Element) n;
           a = XMLUtils.getAttribute(el, ATTR_XSD_NAME);
           QName element =
             new QName(targetNamespace, (a != null) ? a.getValue() : "");

           a = XMLUtils.getAttribute(el, ATTR_XSD_TYPE);
           QName type = null;
           if (a != null)
           {
             String t = a.getValue();
             // if type contains ':', it means that it contains qname
             int i = t.indexOf(':');
             if (i != -1)
             {
               String prefix = t.substring(0, i);
               String nsURI = XMLUtils.findNamespaceURI(n, prefix);
               type = new QName(nsURI, t.substring(i + 1));
             }
             else
               type = new QName(targetNamespace, t);
           }
           else
           {
             // suppose that element directly contains type declaration
             type = element;
             checkType(n, type);
           }

           element2Type.put(element, type);
         }
         else if (XMLUtils.equals(n, ELEM_XSD_IMPORT))
           loadSchema(n, context);
         else if (XMLUtils.equals(n, ELEM_XSD_INCLUDE))
             loadSchema(n, context);
         else if (XMLUtils.equals(n, ELEM_XSD_COMPLEXTYPE))
         {
           Element el = (Element) n;
           a = XMLUtils.getAttribute(el, ATTR_XSD_NAME);
           QName type =
             new QName(targetNamespace, (a != null) ? a.getValue() : "");
           checkType(n, type);
         }

       }

       n = n.getNextSibling();
     }
   }

   /**
    * Internal method checks whether specified type has WSDL array type
    * attribute in the XSD declaration.
    * @param n
    * @param name
    */
   private void checkType(Node n, QName name)
   {
     while (n != null)
     {
       if (Node.ELEMENT_NODE == n.getNodeType())
       {
         // check such sentence
         //              xsd:attribute ref="soapenc:arrayType" wsdl:arrayType="tns:MyArray2Type[]"/>
         if (XMLUtils.equals(n, ELEM_XSD_ATTRIBUTE))
         {
           Attr a = XMLUtils.getAttribute((Element) n, ATTR_WSDL_ARRAYTYPE);
           if (a != null)
             usesWsdlArrayType.add(name);
         }

         // retrieve base attribute may be from restriction or extension
         Attr a = XMLUtils.getAttribute((Element) n, ATTR_XSD_BASE);
         if (a != null)
         {
           String base = a.getValue();
           int i = base.indexOf(":");
           if (i != -1)
           {
             String prefix = base.substring(0, i);
             String local = base.substring(i + 1);
             String namespace = XMLUtils.findNamespaceURI(n, prefix);
             if (SOAPENC_ARRAY.equals(new QName(namespace, local)))
               extendsArray.add(name);
           }
         }
         checkType(n.getFirstChild(), name);
       }
       n = n.getNextSibling();
     }
   }
 }
	/*******************************************************************************
	* Copyright (c) 2002-2005 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM - Initial API and implementation
	*******************************************************************************/
	package org.eclipse.wst.wsi.internal.core.util;

	import java.util.Collection;
	import java.util.HashMap;
	import java.util.HashSet;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;
	import java.util.Set;

	import javax.wsdl.*;
	import javax.wsdl.Import;
	import javax.wsdl.Types;
	import javax.wsdl.extensions.ExtensibilityElement;
	import javax.wsdl.extensions.UnknownExtensibilityElement;
	import javax.wsdl.extensions.soap.*;
	import javax.xml.namespace.QName;

	import org.eclipse.wst.wsi.internal.core.WSITag;
	import org.eclipse.wst.wsi.internal.core.profile.validator.BaseValidator;
	import org.eclipse.wst.wsi.internal.core.wsdl.traversal.WSDLTraversal;
	import org.eclipse.wst.wsi.internal.core.wsdl.traversal.WSDLTraversalContext;
	import org.eclipse.wst.wsi.internal.core.wsdl.traversal.WSDLVisitor;
	import org.eclipse.wst.wsi.internal.core.xml.XMLUtils;
	import org.w3c.dom.Attr;
	import org.w3c.dom.Document;
	import org.w3c.dom.Element;
	import org.w3c.dom.Node;


	/**
	* The class extracts XSD schema information from the given WSDL.
	*
	* @author Kulik
	*/
	public final class TypesRegistry implements WSITag, WSDLVisitor
	{
	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(javax.wsdl.Part, java.lang.Object, org.wsi.wsdl.traversal.WSDLTraversalContext)
	*/
	public void visit(Part obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(javax.wsdl.Service, java.lang.Object, org.wsi.wsdl.traversal.WSDLTraversalContext)
	*/
	public void visit(Service obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Types, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Types obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Operation, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Operation obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Input, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Input obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Output, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Output obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Fault, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Fault obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Binding, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Binding obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingOperation, Object,
	* WSDLTraversalContext)
	*/
	public void visit(
	BindingOperation obj,
	Object parent,
	WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingInput, Object,
	* WSDLTraversalContext)
	*/
	public void visit(BindingInput obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingOutput, Object,
	* WSDLTraversalContext)
	*/
	public void visit(BindingOutput obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(BindingFault, Object,
	* WSDLTraversalContext)
	*/
	public void visit(BindingFault obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Element, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Element obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Message, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Message obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Port, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Port obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(PortType, Object,
	* WSDLTraversalContext)
	*/
	public void visit(PortType obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(Definition, Object,
	* WSDLTraversalContext)
	*/
	public void visit(Definition obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(ExtensibilityElement,
	* Object, WSDLTraversalContext)
	*/
	public void visit(
	ExtensibilityElement obj,
	Object parent,
	WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPBinding, Object,
	* WSDLTraversalContext)
	*/
	public void visit(SOAPBinding obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPBody, Object,
	* WSDLTraversalContext)
	*/
	public void visit(SOAPBody obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPHeader, Object,
	* WSDLTraversalContext)
	*/
	public void visit(SOAPHeader obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPHeaderFault, Object,
	* WSDLTraversalContext)
	*/
	public void visit(
	SOAPHeaderFault obj,
	Object parent,
	WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPFault, Object,
	* WSDLTraversalContext)
	*/
	public void visit(SOAPFault obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(SOAPOperation, Object,
	* WSDLTraversalContext)
	*/
	public void visit(SOAPOperation obj, Object parent, WSDLTraversalContext ctx)
	{
	}

	private Map element2Type = new HashMap();
	private Set extendsArray = new HashSet();
	private Set usesWsdlArrayType = new HashSet();

	protected BaseValidator baseValidator = null;

	/**
	* Constructor creates the types registry. by the given WSDL definition
	* object.
	*
	* @param def a WSDL definition.
	* @param baseValidator a base validator.
	*/
	public TypesRegistry(Definition def, BaseValidator baseValidator)
	{
	this.baseValidator = baseValidator;
	if (def == null)
	throw new IllegalArgumentException("Definition can not be null");

	WSDLTraversal traversal = new WSDLTraversal();
	//VisitorAdaptor.adapt(this);
	traversal.setVisitor(this);
	traversal.visitImport(true);

	processTypes(def.getTypes(), def.getDocumentBaseURI());
	traversal.traverse(def);
	}

	/**
	* Constructor creates the types registry by given WSDL types object and
	* location context URI.
	* @param types WSDL types object.
	* @param context location context URI.
	* @param baseValidator a base validator.
	*/
	public TypesRegistry(
	Types types,
	String context,
	BaseValidator baseValidator)
	{
	this.baseValidator = baseValidator;
	processTypes(types, context);
	}

	/**
	* The method returns type's qname by given element's qname.
	* @param elementName a qualified element name.
	* @return type's qname by given element's qname.
	*/
	public QName getType(QName elementName)
	{
	return (QName) element2Type.get(elementName);
	}

	/**
	* The method returns set of types which is array attribute.
	* @return set of types which is array attribute.
	*/
	public Set getArrayTypes()
	{
	Set s = new HashSet();
	s.addAll((Collection) usesWsdlArrayType);
	s.addAll((Collection) extendsArray);
	return s;
	}

	/**
	* The method returns set of elements defined in types element.
	* @return set of elements defined in types element.
	*/
	public Set getElementList()
	{
	return this.element2Type.keySet();
	}

	/**
	* The method returns true if the given type declares wsdl:arrayType
	* attribute within declaration.
	* @param type a type.
	* @return true if the given type declares wsdl:arrayType
	* attribute within declaration.
	*/
	public boolean isUsesWSDLArrayType(QName type)
	{
	return usesWsdlArrayType.contains(type);
	}

	/**
	* The method returns true if given type extends soapenc:Array type.
	* @param type a type.
	* @return true if given type extends soapenc:Array type.
	*/
	public boolean isExtendsArray(QName type)
	{
	return extendsArray.contains(type);
	}

	/* (non-Javadoc)
	* @see org.wsi.wsdl.traversal.WSDLVisitor#visit(javax.wsdl.Import, java.lang.Object, org.wsi.wsdl.traversal.WSDLTraversalContext)
	*/
	public void visit(Import im, Object parent, WSDLTraversalContext ctx)
	{
	if (im.getDefinition() != null)
	processWSDL(im.getDefinition());
	}

	/**
	* Internal method processes WSDL definition.
	* @param def a WSDL definition.
	*/
	private void processWSDL(Definition def)
	{
	if (def.getTypes() != null)
	processTypes(def.getTypes(), def.getDocumentBaseURI());
	}

	/**
	* Internal method processes WSDL types.
	* @param types WSDL types.
	* @param context a context.
	*/
	private void processTypes(Types types, String context)
	{
	if (types == null)
	return;
	List exts = types.getExtensibilityElements();
	if (exts != null)
	{
	Iterator it = exts.iterator();
	while (it.hasNext())
	{
	ExtensibilityElement el = (ExtensibilityElement) it.next();
	if (el instanceof UnknownExtensibilityElement)
	searchForSchema(
	((UnknownExtensibilityElement) el).getElement(),
	context);
	}
	}
	}

	/**
	* Internal method searches XSD schema declaration and XSD import
	* statements.
	* @param n
	* @param context
	*/
	private void searchForSchema(Node n, String context)
	{
	while (n != null)
	{
	// searches for xsd:import element
	if (Node.ELEMENT_NODE == n.getNodeType())
	{
	// if xsd:schema element is found -> process schema
	if (XMLUtils.equals(n, ELEM_XSD_SCHEMA))
	processSchema(n, context);
	else
	// if xsd:import element is found -> load schema and process schema
	if (XMLUtils.equals(n, ELEM_XSD_IMPORT))
	loadSchema(n, context);
	// if xsd:include element is found -> load schema and process schema
	else if (XMLUtils.equals(n, ELEM_XSD_INCLUDE))
	loadSchema(n, context);
	else
	// else iterate element recursively
	searchForSchema(n.getFirstChild(), context);
	}
	n = n.getNextSibling();
	}
	}

	/**
	* Internal method loads XSD schema by using schema location and
	* location context.
	* @param importNode
	* @param context
	*/
	private void loadSchema(Node importNode, String context)
	{
	Element im = (Element) importNode;
	Attr schemaLocation = XMLUtils.getAttribute(im, ATTR_XSD_SCHEMALOCATION);
	// try to parse imported XSD
	if (schemaLocation != null && schemaLocation.getValue() != null)
	try
	{
	// if any error or root element is not XSD schema -> error
	Document schema =
	baseValidator.parseXMLDocumentURL(
	schemaLocation.getValue(),
	context,
	null);
	if (XMLUtils.equals(schema.getDocumentElement(), ELEM_XSD_SCHEMA))
	processSchema(
	schema.getDocumentElement(),
	XMLUtils.createURLString(schemaLocation.getValue(), context));
	}
	catch (Throwable t)
	{
	//t.printStackTrace();
	// nothing. it's not a schema
	}
	}

	/**
	* Internal method processes XSD schema and retrieves types declaration from
	* it.
	* @param schema
	* @param context
	*/
	private void processSchema(Node schema, String context)
	{
	Attr a = XMLUtils.getAttribute((Element) schema, ATTR_XSD_TARGETNAMESPACE);
	String targetNamespace = (a != null) ? a.getValue() : "";
	// iterate schema
	Node n = schema.getFirstChild();
	// !! we suppose that xsd:import element is occured only within xsd:schema element
	while (n != null)
	{
	if (Node.ELEMENT_NODE == n.getNodeType())
	{
	if (XMLUtils.equals(n, ELEM_XSD_ELEMENT))
	{
	Element el = (Element) n;
	a = XMLUtils.getAttribute(el, ATTR_XSD_NAME);
	QName element =
	new QName(targetNamespace, (a != null) ? a.getValue() : "");

	a = XMLUtils.getAttribute(el, ATTR_XSD_TYPE);
	QName type = null;
	if (a != null)
	{
	String t = a.getValue();
	// if type contains ':', it means that it contains qname
	int i = t.indexOf(':');
	if (i != -1)
	{
	String prefix = t.substring(0, i);
	String nsURI = XMLUtils.findNamespaceURI(n, prefix);
	type = new QName(nsURI, t.substring(i + 1));
	}
	else
	type = new QName(targetNamespace, t);
	}
	else
	{
	// suppose that element directly contains type declaration
	type = element;
	checkType(n, type);
	}

	element2Type.put(element, type);
	}
	else if (XMLUtils.equals(n, ELEM_XSD_IMPORT))
	loadSchema(n, context);
	else if (XMLUtils.equals(n, ELEM_XSD_INCLUDE))
	loadSchema(n, context);
	else if (XMLUtils.equals(n, ELEM_XSD_COMPLEXTYPE))
	{
	Element el = (Element) n;
	a = XMLUtils.getAttribute(el, ATTR_XSD_NAME);
	QName type =
	new QName(targetNamespace, (a != null) ? a.getValue() : "");
	checkType(n, type);
	}

	}

	n = n.getNextSibling();
	}
	}

	/**
	* Internal method checks whether specified type has WSDL array type
	* attribute in the XSD declaration.
	* @param n
	* @param name
	*/
	private void checkType(Node n, QName name)
	{
	while (n != null)
	{
	if (Node.ELEMENT_NODE == n.getNodeType())
	{
	// check such sentence
	// xsd:attribute ref="soapenc:arrayType" wsdl:arrayType="tns:MyArray2Type[]"/>
	if (XMLUtils.equals(n, ELEM_XSD_ATTRIBUTE))
	{
	Attr a = XMLUtils.getAttribute((Element) n, ATTR_WSDL_ARRAYTYPE);
	if (a != null)
	usesWsdlArrayType.add(name);
	}

	// retrieve base attribute may be from restriction or extension
	Attr a = XMLUtils.getAttribute((Element) n, ATTR_XSD_BASE);
	if (a != null)
	{
	String base = a.getValue();
	int i = base.indexOf(":");
	if (i != -1)
	{
	String prefix = base.substring(0, i);
	String local = base.substring(i + 1);
	String namespace = XMLUtils.findNamespaceURI(n, prefix);
	if (SOAPENC_ARRAY.equals(new QName(namespace, local)))
	extendsArray.add(name);
	}
	}
	checkType(n.getFirstChild(), name);
	}
	n = n.getNextSibling();
	}
	}
	}