1   /*   Copyright 2004 The Apache Software Foundation
    2    *
    3    *   Licensed under the Apache License, Version 2.0 (the "License");
    4    *   you may not use this file except in compliance with the License.
    5    *   You may obtain a copy of the License at
    6    *
    7    *       http://www.apache.org/licenses/LICENSE-2.0
    8    *
    9    *   Unless required by applicable law or agreed to in writing, software
   10    *   distributed under the License is distributed on an "AS IS" BASIS,
   11    *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   12    *   See the License for the specific language governing permissions and
   13    *  limitations under the License.
   14    */
   15   
   16   package org.apache.xmlbeans.impl.validator;
   17   
   18   import org.apache.xmlbeans.SchemaType;
   19   import org.apache.xmlbeans.XmlCursor;
   20   import org.apache.xmlbeans.impl.common.PrefixResolver;
   21   import org.apache.xmlbeans.impl.common.ValidatorListener;
   22   import org.apache.xmlbeans.impl.common.XmlWhitespace;
   23   
   24   import javax.xml.namespace.QName;
   25   import java.util.Collection;
   26   
   27   /**
   28    * Author: Cezar Andrei (cezar.andrei at bea.com)
   29    * Date: Feb 5, 2004
   30    */
   31   public class ValidatorUtil
   32   {
   33       private static class EventImpl implements ValidatorListener.Event
   34       {
   35           PrefixResolver _prefixResolver;
   36           String _text;
   37   
   38           EventImpl(PrefixResolver prefixResolver, String text)
   39           {
   40               _prefixResolver = prefixResolver;
   41               _text = text;
   42           }
   43   
   44           // can return null, used only to locate errors
   45           public XmlCursor getLocationAsCursor()
   46           {
   47               return null;
   48           }
   49   
   50           public javax.xml.stream.Location getLocation()
   51           {
   52               return null;
   53           }
   54   
   55           // fill up chars with the xsi:type attribute value if there is one othervise return false
   56           public String getXsiType() // BEGIN xsi:type
   57           {
   58               return null;
   59           }
   60   
   61           // fill up chars with xsi:nill attribute value if any
   62           public String getXsiNil() // BEGIN xsi:nil
   63           {
   64               return null;
   65           }
   66   
   67           public String getXsiLoc() // BEGIN xsi:schemaLocation
   68           {
   69               return null;
   70           }
   71   
   72           public String getXsiNoLoc() // BEGIN xsi:noNamespaceSchemaLocation
   73           {
   74               return null;
   75           }
   76   
   77           // On START and ATTR
   78           public QName getName()
   79           {
   80               return null;
   81           }
   82   
   83           // On TEXT and ATTR
   84           public String getText()
   85           {
   86               return _text;
   87           }
   88   
   89           public String getText(int wsr)
   90           {
   91               return XmlWhitespace.collapse( _text, wsr );
   92           }
   93   
   94           public boolean textIsWhitespace()
   95           {
   96               return false;
   97           }
   98   
   99           public String getNamespaceForPrefix(String prefix)
  100           {
  101               return _prefixResolver.getNamespaceForPrefix(prefix);
  102           }
  103       }
  104   
  105       public static boolean validateSimpleType (
  106           SchemaType type, String value, Collection errors, PrefixResolver prefixResolver )
  107       {
  108           if (!type.isSimpleType() && type.getContentType() != SchemaType.SIMPLE_CONTENT)
  109           {
  110               assert false;
  111               throw new RuntimeException( "Not a simple type" );
  112           }
  113   
  114           Validator validator =
  115                   new Validator(
  116                           type, null, type.getTypeSystem(), null, errors);
  117   
  118           //make only one event at the beginning and than reuse it
  119           EventImpl ev = new EventImpl(prefixResolver, value);
  120   
  121           validator.nextEvent(ValidatorListener.BEGIN, ev);
  122   
  123           validator.nextEvent(ValidatorListener.TEXT, ev);
  124   
  125           validator.nextEvent(ValidatorListener.END, ev);
  126   
  127           return validator.isValid();
  128       }
  129   
  130   //    public static void main(String[] args)
  131   //    {
  132   //        String value;
  133   //        value = "  +1.2323 ";
  134   //        System.out.println("float " + validateSimpleType(XmlFloat.type, value, null , null));
  135   //        value = " +234  ";
  136   //        System.out.println("posInt " + validateSimpleType(XmlPositiveInteger.type, value, null , null));
  137   //        value = "2001-01-01";
  138   //        System.out.println("IntOrDateUnion " + validateSimpleType(DocDocument.Doc.IntOrDateUnion.type, value, null , null));
  139   //        value = "232321";
  140   //        System.out.println("IntOrDateUnion " + validateSimpleType(DocDocument.Doc.IntOrDateUnion.type, value, null , null));
  141   //    }
  142   }