//
   // This file was generated by the JavaTM Architecture for XML Binding(JAXB) Reference Implementation, v1.0.3-b18-fcs 
   // See <a href="http://java.sun.com/xml/jaxb">http://java.sun.com/xml/jaxb</a> 
   // Any modifications to this file will be lost upon recompilation of the source schema. 
   // Generated on: 2004.12.16 at 07:09:42 EST 
   //
   
   package net.sf.jour.config.impl.runtime;
   
  import java.io.InputStream;
  import java.io.ObjectInputStream;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  import javax.xml.bind.JAXBException;
  import javax.xml.namespace.QName;
  
  import com.sun.xml.bind.Messages;
  
  /***
   * Keeps the information about the grammar as a whole.
   * 
   * This object is immutable and thread-safe.
   *
   * @author
   *  <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a>
   */
  public class GrammarInfoImpl implements GrammarInfo
  {
      /***
       * Map from {@link QName}s (root tag names) to {@link Class}es of the
       * content interface that should be instanciated.
       */
      private final Map rootTagMap;
      
      /***
       * Enclosing ObjectFactory class. Used to load resources.
       */
      private final Class objectFactoryClass;
      
      /***
       * Map from {@link Class}es that represent content interfaces
       * to {@link String}s that represent names of the corresponding
       * implementation classes.
       */
      private final Map defaultImplementationMap;
      
      /***
       * ClassLoader that should be used to load impl classes.
       */
      private final ClassLoader classLoader;
      
      public GrammarInfoImpl( Map _rootTagMap, Map _defaultImplementationMap, Class _objectFactoryClass ) {
          this.rootTagMap = _rootTagMap;
          this.defaultImplementationMap = _defaultImplementationMap;
          this.objectFactoryClass = _objectFactoryClass;
          // the assumption is that the content interfaces and their impls
          // are loaded from the same class loader. 
          this.classLoader = objectFactoryClass.getClassLoader(); 
      }
      
      /***
       * @return the name of the content interface that is registered with
       * the specified element name.
       */
      private final Class lookupRootMap( String nsUri, String localName ) {
          // note that the value of rootTagMap could be null.
          QName qn;
          
          qn = new QName(nsUri,localName);
          if(rootTagMap.containsKey(qn))    return (Class)rootTagMap.get(qn);
  
          qn = new QName(nsUri,"*");
          if(rootTagMap.containsKey(qn))    return (Class)rootTagMap.get(qn);
  
          qn = new QName("*","*");
          return (Class)rootTagMap.get(qn);
      }
      
      public final Class getRootElement(String namespaceUri, String localName) {
          Class intfCls = lookupRootMap(namespaceUri,localName);
          if(intfCls==null)    return null;
          else                return getDefaultImplementation(intfCls);
      }
  
      public final UnmarshallingEventHandler createUnmarshaller(
          String namespaceUri, String localName, UnmarshallingContext context ) {
          
          Class impl = getRootElement(namespaceUri,localName);
          if(impl==null)        return null;
          
          try {
              return ((UnmarshallableObject)impl.newInstance()).createUnmarshaller(context);
          } catch (InstantiationException e) {
              throw new InstantiationError(e.toString());
          } catch (IllegalAccessException e) {
              throw new IllegalAccessError(e.toString());
         }
     }
     
     public final String[] getProbePoints() {
         List r = new ArrayList();
         for (Iterator itr = rootTagMap.keySet().iterator(); itr.hasNext();) {
             QName qn = (QName) itr.next();
             r.add(qn.getNamespaceURI());
             r.add(qn.getLocalPart());
         }
         return (String[]) r.toArray(new String[r.size()]);
     }
     
     public final boolean recognize( String nsUri, String localName ) {
         return lookupRootMap(nsUri,localName)!=null;
     }
     
     public final Class getDefaultImplementation( Class javaContentInterface ) {
         try {
             // by caching the obtained Class objects.
             return Class.forName((String)defaultImplementationMap.get(javaContentInterface), true, classLoader );
         } catch (ClassNotFoundException e) {
             throw new NoClassDefFoundError(e.toString());
         }
     }
 
     /***
      * Gets the MSV AGM which can be used to validate XML during
      * marshalling/unmarshalling.
      */
     public final com.sun.msv.grammar.Grammar getGrammar() throws JAXBException {
         try {
             InputStream is = objectFactoryClass.getResourceAsStream("bgm.ser");
             
             if( is==null ) {
                 // unable to find bgm.ser
                 String name = objectFactoryClass.getName();
                 int idx = name.lastIndexOf('.');
                 name = '/'+name.substring(0,idx+1).replace('.','/')+"bgm.ser";
                 throw new JAXBException(
                     Messages.format( Messages.NO_BGM, name ) );
             }
             
             // deserialize the bgm
             ObjectInputStream ois = new ObjectInputStream( is );
             com.sun.xml.bind.GrammarImpl g = (com.sun.xml.bind.GrammarImpl)ois.readObject();
             ois.close();
             
             g.connect(new com.sun.msv.grammar.Grammar[]{g});    // connect to itself
             
             return g;
         } catch( Exception e ) {
             throw new JAXBException( 
                 Messages.format( Messages.UNABLE_TO_READ_BGM ), 
                 e );
         }
     }
     
     /***
      * @see com.sun.tools.xjc.runtime.GrammarInfo#castToXMLSerializable(java.lang.Object)
      */
     public XMLSerializable castToXMLSerializable(Object o) {
         if( o instanceof XMLSerializable ) {
              return (XMLSerializable)o;
         } else {
             return null;
         }
     }
     
     /***
      * @see com.sun.tools.xjc.runtime.GrammarInfo#castToValidatableObject(java.lang.Object)
      */
     public ValidatableObject castToValidatableObject(Object o) {
         if( o instanceof ValidatableObject ) {
              return (ValidatableObject)o;
         } else {
             return null;
         }
     }
 }