bundles/org.eclipse.wst.wsdl.validation/src/wsdlvalidate/org/eclipse/wst/wsdl/validation/internal/xml/DefaultXMLValidator.java - webservices/webtools.webservices - Git at Google

 /*******************************************************************************
  * Copyright (c) 2001, 2004 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 Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.wst.wsdl.validation.internal.xml;

 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Hashtable;
 import java.util.List;

 import javax.xml.parsers.FactoryConfigurationError;
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.parsers.SAXParser;
 import javax.xml.parsers.SAXParserFactory;

 import org.apache.xerces.jaxp.SAXParserFactoryImpl;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.wst.wsdl.validation.internal.ValidationMessageImpl;
 import org.eclipse.wst.wsdl.validation.internal.resolver.URIResolver;
 import org.xml.sax.Attributes;
 import org.xml.sax.InputSource;
 import org.xml.sax.SAXException;
 import org.xml.sax.SAXNotRecognizedException;
 import org.xml.sax.SAXNotSupportedException;
 import org.xml.sax.SAXParseException;
 import org.xml.sax.helpers.DefaultHandler;

 import com.ibm.wsdl.Constants;

 /**
  * The default implementation of IXMLValidator.
  */
 public class DefaultXMLValidator implements IXMLValidator
 {
   private final String _APACHE_FEATURE_CONTINUE_AFTER_FATAL_ERROR =
     "http://apache.org/xml/features/continue-after-fatal-error";
   private final String _APACHE_FEATURE_NAMESPACE_PREFIXES = "http://xml.org/sax/features/namespace-prefixes";
   private final String _APACHE_FEATURE_NAMESPACES = "http://xml.org/sax/features/namespaces";
   private final String _APACHE_FEATURE_VALIDATION = "http://xml.org/sax/features/validation";
   private final String _APACHE_FEATURE_VALIDATION_SCHEMA = "http://apache.org/xml/features/validation/schema";
   private final String _APACHE_PROPERTY_EXTERNAL_SCHEMALOCATION =
     "http://apache.org/xml/properties/schema/external-schemaLocation";
   private final String DEFINITIONS = "definitions";

   protected static final String IGNORE_ALWAYS = "IGNORE_ALWAYS";
   protected static final String PREMATURE_EOF = "PrematureEOF";

   protected Hashtable ingoredErrorKeyTable = new Hashtable();

   protected String uri;
   protected URIResolver uriResolver = null;
   protected List errors = new ArrayList();
   protected StringBuffer schemaLocationString = new StringBuffer();
   protected List ignoredNamespaceList = new ArrayList();
 //  protected String wsdlNamespace = null;

   /**
    * Constructor.
    */
   public DefaultXMLValidator()
   {
     super();

     ignoredNamespaceList.add(Constants.NS_URI_XSD_1999);
     ignoredNamespaceList.add(Constants.NS_URI_XSD_2000);
     ignoredNamespaceList.add(Constants.NS_URI_XSD_2001);

     ingoredErrorKeyTable.put(PREMATURE_EOF, IGNORE_ALWAYS);
   }

   /**
    * @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#setFile(IFile)
    */
   public void setFile(String uri)
   {
     this.uri = uri;
   }

   public void setURIResolver(URIResolver uriResolver)
   {
   	this.uriResolver = uriResolver;
   }

   /**
    * @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#run()
    */
   public void run()
   {
     // Validate the XML file.
     try
     {
       preparse(uri);
       SAXParser saxparser = createSAXParser();
       XMLConformanceDefaultHandler handler = new XMLConformanceDefaultHandler();
       saxparser.parse(uri, handler);
 //      wsdlNamespace = handler.getWSDLNamespace();
     }
     catch (SAXParseException e)
     {
       addError(e.getMessage(), e.getLineNumber(), e.getColumnNumber(), uri);
     }
     catch (IOException e)
     {
     }
     catch (Exception e)
     {
       //System.out.println(e);
     }
   }

   /**
    * Create and configure a SAX parser.
    *
    * @return The new SAX parser.
    */
   protected SAXParser createSAXParser()
   {
     SAXParser saxParser = null;
     try
     {
       SAXParserFactory parserfactory = new SAXParserFactoryImpl();
       try
       {
         parserfactory.setFeature(_APACHE_FEATURE_CONTINUE_AFTER_FATAL_ERROR, true);
         parserfactory.setFeature(_APACHE_FEATURE_NAMESPACE_PREFIXES, true);
         parserfactory.setFeature(_APACHE_FEATURE_NAMESPACES, true);
         parserfactory.setFeature(_APACHE_FEATURE_VALIDATION, true);
         parserfactory.setFeature(_APACHE_FEATURE_VALIDATION_SCHEMA, true);
       }
       catch (ParserConfigurationException e)
       {
       }
       catch (SAXNotRecognizedException e)
       {
       }
       catch (SAXNotSupportedException e)
       {
       }
       parserfactory.setNamespaceAware(true);
       parserfactory.setValidating(true);
       saxParser = parserfactory.newSAXParser();

       if (schemaLocationString.length() > 0)
       {
         saxParser.getXMLReader().setProperty(_APACHE_PROPERTY_EXTERNAL_SCHEMALOCATION, schemaLocationString.toString());
       }
     }
     catch (FactoryConfigurationError e)
     {
     }
     catch (SAXNotRecognizedException e)
     {
     }
     catch (ParserConfigurationException e)
     {
     }
     catch (SAXNotSupportedException e)
     {
     }
     catch (SAXException e)
     {
     }
     return saxParser;
   }

   /**
    * Preparse the file to find all of the namespaces that are defined in order
    * to specify the schemalocation.
    *
    * @param uri The uri of the file to parse.
    */
   protected void preparse(String uri)
   {
     SAXParser saxParser = null;
     try
     {
       SAXParserFactory parserfactory = new SAXParserFactoryImpl();

       parserfactory.setFeature(_APACHE_FEATURE_NAMESPACE_PREFIXES, true);
       parserfactory.setFeature(_APACHE_FEATURE_NAMESPACES, true);

       saxParser = parserfactory.newSAXParser();
       SchemaStringHandler handler = new SchemaStringHandler(uri);
       saxParser.parse(uri, handler);
     }
     catch (FactoryConfigurationError e)
     {
     }
     catch (SAXNotRecognizedException e)
     {
     }
     catch (ParserConfigurationException e)
     {
     }
     catch (SAXNotSupportedException e)
     {
     }
     catch (SAXException e)
     {
     }
     catch (IOException e)
     {
     }
   }

   /**
    * @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#hasErrors()
    */
   public boolean hasErrors()
   {
     return !errors.isEmpty();
   }

   /**
    * @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#getErrorList()
    */
   public List getErrors()
   {
     return errors;
   }

   /**
    * Add an error message.
    *
    * @param error The error message to add.
    * @param line The line location of the error.
    * @param column The column location of the error.
    * @param uri The URI of the file containing the error.
    */
   protected void addError(String error, int line, int column, String uri)
   {
     errors.add(new ValidationMessageImpl(error, line, column, ValidationMessageImpl.SEV_ERROR, uri));
   }

   /**
    * The handler for the SAX parser. This handler will obtain the WSDL
    * namespace, handle errors and resolve entities.
    */
   protected class XMLConformanceDefaultHandler extends DefaultHandler
   {
     /**
      * @see org.xml.sax.ErrorHandler#error(SAXParseException)
      */
     public void error(SAXParseException arg0) throws SAXException
     {
       addError(arg0.getMessage(), arg0.getLineNumber(), arg0.getColumnNumber(), arg0.getSystemId());
     }

     /**
      * @see org.xml.sax.ErrorHandler#fatalError(SAXParseException)
      */
     public void fatalError(SAXParseException arg0) throws SAXException
     {
       addError(arg0.getMessage(), arg0.getLineNumber(), arg0.getColumnNumber(), arg0.getSystemId());
     }

     /**
      * @see org.xml.sax.ErrorHandler#warning(SAXParseException)
      */
     public void warning(SAXParseException arg0) throws SAXException
     {
       addError(arg0.getMessage(), arg0.getLineNumber(), arg0.getColumnNumber(), arg0.getSystemId());
     }

     /**
      * @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String,
      *      java.lang.String)
      */
     public InputSource resolveEntity(String publicId, String systemId) throws SAXException
     {
       String uri = uriResolver.resolve(null, publicId, systemId);
       if (uri != null && !uri.equals(""))
       {
         InputSource is = new InputSource(uri);
         if (is != null)
         {
           return is;
         }
       }
       // This try/catch block with the IOException is here to handle a difference
       // between different versions of the EntityResolver interface.
       try
       {
         InputSource is = super.resolveEntity(publicId, systemId);
         if(is == null)
         {
           throw new IOException();
         }
         return is;
       }
       catch(IOException e)
       {
       }
       return null;
     }

 //    /**
 //     * @see org.xml.sax.ContentHandler#startElement(java.lang.String,
 //     *      java.lang.String, java.lang.String, org.xml.sax.Attributes)
 //     */
 //    public void startElement(String uri, String localname, String arg2, Attributes attributes) throws SAXException
 //    {
 //      if (localname.equals(DEFINITIONS))
 //      {
 //        wsdlURI = uri;
 //      }
 //      super.startElement(uri, localname, arg2, attributes);
 //
 //    }

   }

   /**
    * @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidator#setSchemaLocation(String,
    *      String)
    */
   public void setSchemaLocation(String namespace, String location)
   {
     if (namespace != null && location != null && !namespace.equalsIgnoreCase("") && !location.equalsIgnoreCase(""))
     {
       schemaLocationString.append(" ").append(namespace).append(" ").append(formatURI(location));
     }
   }

   /**
    * Remove space characters from a String and replace them with %20.
    *
    * @param uri -
    *            the uri to format
    * @return the formatted string
    */
   protected String formatURI(String uri)
   {
     String space = "%20";
     StringBuffer newUri = new StringBuffer(uri);
     int newUriLength = newUri.length();

     // work backwards through the stringbuffer in case it grows to the
     // point
     // where the last space would be missed.
     for (int i = newUriLength - 1; i >= 0; i--)
     {
       if (newUri.charAt(i) == ' ')
       {
         newUri.replace(i, i + 1, space);
       }
     }

     return newUri.toString();
   }

   /**
    * A handler used in preparsing to get the schemaLocation string.
    */
   protected class SchemaStringHandler extends DefaultHandler
   {
     private final String XMLNS = "xmlns";
     private String baselocation = null;

     public SchemaStringHandler(String baselocation)
     {
       this.baselocation = baselocation;
     }
     /**
      * @see org.xml.sax.ContentHandler#startElement(java.lang.String,
      *      java.lang.String, java.lang.String, org.xml.sax.Attributes)
      */
     public void startElement(String uri, String localname, String arg2, Attributes attributes) throws SAXException
     {
       if (localname.equals(DEFINITIONS))
       {

         int numAtts = attributes.getLength();
         for (int i = 0; i < numAtts; i++)
         {

           String attname = attributes.getQName(i);
           if (attname.startsWith(XMLNS))
           {
             String namespace = attributes.getValue(i);
             if(!ignoredNamespaceList.contains(namespace))
             {
               String resolvedURI = uriResolver.resolve(baselocation, namespace, namespace);
               if(resolvedURI != null)
               {
                 setSchemaLocation(namespace, resolvedURI);
               }
             }
           }
         }

       }
       super.startElement(uri, localname, arg2, attributes);

     }
   }

 //  /**
 //   * @see org.eclipse.wsdl.validate.internal.xml.IXMLValidator#getWSDLNamespace()
 //   */
 //  public String getWSDLNamespace()
 //  {
 //    return wsdlNamespace;
 //  }

 }
	/*******************************************************************************
	* Copyright (c) 2001, 2004 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 Corporation - initial API and implementation
	*******************************************************************************/

	package org.eclipse.wst.wsdl.validation.internal.xml;

	import java.io.IOException;
	import java.util.ArrayList;
	import java.util.Hashtable;
	import java.util.List;

	import javax.xml.parsers.FactoryConfigurationError;
	import javax.xml.parsers.ParserConfigurationException;
	import javax.xml.parsers.SAXParser;
	import javax.xml.parsers.SAXParserFactory;

	import org.apache.xerces.jaxp.SAXParserFactoryImpl;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.wst.wsdl.validation.internal.ValidationMessageImpl;
	import org.eclipse.wst.wsdl.validation.internal.resolver.URIResolver;
	import org.xml.sax.Attributes;
	import org.xml.sax.InputSource;
	import org.xml.sax.SAXException;
	import org.xml.sax.SAXNotRecognizedException;
	import org.xml.sax.SAXNotSupportedException;
	import org.xml.sax.SAXParseException;
	import org.xml.sax.helpers.DefaultHandler;

	import com.ibm.wsdl.Constants;

	/**
	* The default implementation of IXMLValidator.
	*/
	public class DefaultXMLValidator implements IXMLValidator
	{
	private final String _APACHE_FEATURE_CONTINUE_AFTER_FATAL_ERROR =
	"http://apache.org/xml/features/continue-after-fatal-error";
	private final String _APACHE_FEATURE_NAMESPACE_PREFIXES = "http://xml.org/sax/features/namespace-prefixes";
	private final String _APACHE_FEATURE_NAMESPACES = "http://xml.org/sax/features/namespaces";
	private final String _APACHE_FEATURE_VALIDATION = "http://xml.org/sax/features/validation";
	private final String _APACHE_FEATURE_VALIDATION_SCHEMA = "http://apache.org/xml/features/validation/schema";
	private final String _APACHE_PROPERTY_EXTERNAL_SCHEMALOCATION =
	"http://apache.org/xml/properties/schema/external-schemaLocation";
	private final String DEFINITIONS = "definitions";

	protected static final String IGNORE_ALWAYS = "IGNORE_ALWAYS";
	protected static final String PREMATURE_EOF = "PrematureEOF";

	protected Hashtable ingoredErrorKeyTable = new Hashtable();

	protected String uri;
	protected URIResolver uriResolver = null;
	protected List errors = new ArrayList();
	protected StringBuffer schemaLocationString = new StringBuffer();
	protected List ignoredNamespaceList = new ArrayList();
	// protected String wsdlNamespace = null;

	/**
	* Constructor.
	*/
	public DefaultXMLValidator()
	{
	super();

	ignoredNamespaceList.add(Constants.NS_URI_XSD_1999);
	ignoredNamespaceList.add(Constants.NS_URI_XSD_2000);
	ignoredNamespaceList.add(Constants.NS_URI_XSD_2001);

	ingoredErrorKeyTable.put(PREMATURE_EOF, IGNORE_ALWAYS);
	}

	/**
	* @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#setFile(IFile)
	*/
	public void setFile(String uri)
	{
	this.uri = uri;
	}

	public void setURIResolver(URIResolver uriResolver)
	{
	this.uriResolver = uriResolver;
	}

	/**
	* @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#run()
	*/
	public void run()
	{
	// Validate the XML file.
	try
	{
	preparse(uri);
	SAXParser saxparser = createSAXParser();
	XMLConformanceDefaultHandler handler = new XMLConformanceDefaultHandler();
	saxparser.parse(uri, handler);
	// wsdlNamespace = handler.getWSDLNamespace();
	}
	catch (SAXParseException e)
	{
	addError(e.getMessage(), e.getLineNumber(), e.getColumnNumber(), uri);
	}
	catch (IOException e)
	{
	}
	catch (Exception e)
	{
	//System.out.println(e);
	}
	}

	/**
	* Create and configure a SAX parser.
	*
	* @return The new SAX parser.
	*/
	protected SAXParser createSAXParser()
	{
	SAXParser saxParser = null;
	try
	{
	SAXParserFactory parserfactory = new SAXParserFactoryImpl();
	try
	{
	parserfactory.setFeature(_APACHE_FEATURE_CONTINUE_AFTER_FATAL_ERROR, true);
	parserfactory.setFeature(_APACHE_FEATURE_NAMESPACE_PREFIXES, true);
	parserfactory.setFeature(_APACHE_FEATURE_NAMESPACES, true);
	parserfactory.setFeature(_APACHE_FEATURE_VALIDATION, true);
	parserfactory.setFeature(_APACHE_FEATURE_VALIDATION_SCHEMA, true);
	}
	catch (ParserConfigurationException e)
	{
	}
	catch (SAXNotRecognizedException e)
	{
	}
	catch (SAXNotSupportedException e)
	{
	}
	parserfactory.setNamespaceAware(true);
	parserfactory.setValidating(true);
	saxParser = parserfactory.newSAXParser();

	if (schemaLocationString.length() > 0)
	{
	saxParser.getXMLReader().setProperty(_APACHE_PROPERTY_EXTERNAL_SCHEMALOCATION, schemaLocationString.toString());
	}
	}
	catch (FactoryConfigurationError e)
	{
	}
	catch (SAXNotRecognizedException e)
	{
	}
	catch (ParserConfigurationException e)
	{
	}
	catch (SAXNotSupportedException e)
	{
	}
	catch (SAXException e)
	{
	}
	return saxParser;
	}

	/**
	* Preparse the file to find all of the namespaces that are defined in order
	* to specify the schemalocation.
	*
	* @param uri The uri of the file to parse.
	*/
	protected void preparse(String uri)
	{
	SAXParser saxParser = null;
	try
	{
	SAXParserFactory parserfactory = new SAXParserFactoryImpl();

	parserfactory.setFeature(_APACHE_FEATURE_NAMESPACE_PREFIXES, true);
	parserfactory.setFeature(_APACHE_FEATURE_NAMESPACES, true);

	saxParser = parserfactory.newSAXParser();
	SchemaStringHandler handler = new SchemaStringHandler(uri);
	saxParser.parse(uri, handler);
	}
	catch (FactoryConfigurationError e)
	{
	}
	catch (SAXNotRecognizedException e)
	{
	}
	catch (ParserConfigurationException e)
	{
	}
	catch (SAXNotSupportedException e)
	{
	}
	catch (SAXException e)
	{
	}
	catch (IOException e)
	{
	}
	}

	/**
	* @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#hasErrors()
	*/
	public boolean hasErrors()
	{
	return !errors.isEmpty();
	}

	/**
	* @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidatorAction#getErrorList()
	*/
	public List getErrors()
	{
	return errors;
	}

	/**
	* Add an error message.
	*
	* @param error The error message to add.
	* @param line The line location of the error.
	* @param column The column location of the error.
	* @param uri The URI of the file containing the error.
	*/
	protected void addError(String error, int line, int column, String uri)
	{
	errors.add(new ValidationMessageImpl(error, line, column, ValidationMessageImpl.SEV_ERROR, uri));
	}

	/**
	* The handler for the SAX parser. This handler will obtain the WSDL
	* namespace, handle errors and resolve entities.
	*/
	protected class XMLConformanceDefaultHandler extends DefaultHandler
	{
	/**
	* @see org.xml.sax.ErrorHandler#error(SAXParseException)
	*/
	public void error(SAXParseException arg0) throws SAXException
	{
	addError(arg0.getMessage(), arg0.getLineNumber(), arg0.getColumnNumber(), arg0.getSystemId());
	}

	/**
	* @see org.xml.sax.ErrorHandler#fatalError(SAXParseException)
	*/
	public void fatalError(SAXParseException arg0) throws SAXException
	{
	addError(arg0.getMessage(), arg0.getLineNumber(), arg0.getColumnNumber(), arg0.getSystemId());
	}

	/**
	* @see org.xml.sax.ErrorHandler#warning(SAXParseException)
	*/
	public void warning(SAXParseException arg0) throws SAXException
	{
	addError(arg0.getMessage(), arg0.getLineNumber(), arg0.getColumnNumber(), arg0.getSystemId());
	}

	/**
	* @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String,
	* java.lang.String)
	*/
	public InputSource resolveEntity(String publicId, String systemId) throws SAXException
	{
	String uri = uriResolver.resolve(null, publicId, systemId);
	if (uri != null && !uri.equals(""))
	{
	InputSource is = new InputSource(uri);
	if (is != null)
	{
	return is;
	}
	}
	// This try/catch block with the IOException is here to handle a difference
	// between different versions of the EntityResolver interface.
	try
	{
	InputSource is = super.resolveEntity(publicId, systemId);
	if(is == null)
	{
	throw new IOException();
	}
	return is;
	}
	catch(IOException e)
	{
	}
	return null;
	}

	// /**
	// * @see org.xml.sax.ContentHandler#startElement(java.lang.String,
	// * java.lang.String, java.lang.String, org.xml.sax.Attributes)
	// */
	// public void startElement(String uri, String localname, String arg2, Attributes attributes) throws SAXException
	// {
	// if (localname.equals(DEFINITIONS))
	// {
	// wsdlURI = uri;
	// }
	// super.startElement(uri, localname, arg2, attributes);
	//
	// }

	}

	/**
	* @see org.eclipse.validate.wsdl.xmlconformance.IXMLValidator#setSchemaLocation(String,
	* String)
	*/
	public void setSchemaLocation(String namespace, String location)
	{
	if (namespace != null && location != null && !namespace.equalsIgnoreCase("") && !location.equalsIgnoreCase(""))
	{
	schemaLocationString.append(" ").append(namespace).append(" ").append(formatURI(location));
	}
	}

	/**
	* Remove space characters from a String and replace them with %20.
	*
	* @param uri -
	* the uri to format
	* @return the formatted string
	*/
	protected String formatURI(String uri)
	{
	String space = "%20";
	StringBuffer newUri = new StringBuffer(uri);
	int newUriLength = newUri.length();

	// work backwards through the stringbuffer in case it grows to the
	// point
	// where the last space would be missed.
	for (int i = newUriLength - 1; i >= 0; i--)
	{
	if (newUri.charAt(i) == ' ')
	{
	newUri.replace(i, i + 1, space);
	}
	}

	return newUri.toString();
	}

	/**
	* A handler used in preparsing to get the schemaLocation string.
	*/
	protected class SchemaStringHandler extends DefaultHandler
	{
	private final String XMLNS = "xmlns";
	private String baselocation = null;

	public SchemaStringHandler(String baselocation)
	{
	this.baselocation = baselocation;
	}
	/**
	* @see org.xml.sax.ContentHandler#startElement(java.lang.String,
	* java.lang.String, java.lang.String, org.xml.sax.Attributes)
	*/
	public void startElement(String uri, String localname, String arg2, Attributes attributes) throws SAXException
	{
	if (localname.equals(DEFINITIONS))
	{

	int numAtts = attributes.getLength();
	for (int i = 0; i < numAtts; i++)
	{

	String attname = attributes.getQName(i);
	if (attname.startsWith(XMLNS))
	{
	String namespace = attributes.getValue(i);
	if(!ignoredNamespaceList.contains(namespace))
	{
	String resolvedURI = uriResolver.resolve(baselocation, namespace, namespace);
	if(resolvedURI != null)
	{
	setSchemaLocation(namespace, resolvedURI);
	}
	}
	}
	}

	}
	super.startElement(uri, localname, arg2, attributes);

	}
	}

	// /**
	// * @see org.eclipse.wsdl.validate.internal.xml.IXMLValidator#getWSDLNamespace()
	// */
	// public String getWSDLNamespace()
	// {
	// return wsdlNamespace;
	// }

	}