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package com.sun.enterprise.naming.impl;


import com.sun.enterprise.util.Utility;
import java.rmi.Remote;
import java.rmi.RemoteException;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.naming.*;
import org.glassfish.api.naming.NamingObjectProxy;
import org.omg.CORBA.ORB;

/**
 * This class is the implementation of the Remote SerialContextProvider
 *
 * @author Sheetal Vartak
 */
public class RemoteSerialContextProviderImpl 
    extends SerialContextProviderImpl {

    static public final String SERIAL_CONTEXT_PROVIDER_NAME =
        "SerialContextProvider";

    private ORB orb;

    private RemoteSerialContextProviderImpl(ORB orb, TransientContext rootContext)
	    throws RemoteException {

	    super(rootContext);

        this.orb = orb;
    }
    
    @Override
    public Hashtable list() throws RemoteException {
        try {
            return list("");
        } catch (NamingException ex) {
            throw new RemoteException(ex.getMessage(), ex);
        }
    }

    @Override
    public Hashtable list(String name) throws NamingException, RemoteException {
        Hashtable ne = super.list(name);
        Set<Map.Entry> entrySet = ne.entrySet();
        for(Iterator<Map.Entry> it = entrySet.iterator(); it.hasNext();) {
            Object val = it.next().getValue();
            // Issue 17219 skip non-serializable values for remote client.
            if(!(val instanceof java.io.Serializable) || val instanceof Context) {
                it.remove();  
            }
        }
        return ne;
    }

   /**
     * Create the remote object and publish it in the CosNaming name service.
     */
    static public Remote initSerialContextProvider(ORB orb, TransientContext rootContext)
	    throws RemoteException {
       return new RemoteSerialContextProviderImpl(orb, rootContext);
    }
        
    @Override
    public Object lookup(String name) throws NamingException, RemoteException {
        Object obj = super.lookup(name);

        // If CORBA object, resolve here in server to prevent a
	    // another round-trip to CosNaming.

        ClassLoader originalClassLoader = null;

	    try {
	        if( obj instanceof Reference ) {
		        Reference ref = (Reference) obj;
                         
		        if( ref.getFactoryClassName().equals(GlassfishNamingManagerImpl.IIOPOBJECT_FACTORY) ) {

                    // Set CCL to this CL so it's guaranteed to be able to find IIOPObjectFactory
                    originalClassLoader = Utility.setContextClassLoader(getClass().getClassLoader());

                    Hashtable env = new Hashtable();
                    env.put("java.naming.corba.orb", orb);

                    obj = javax.naming.spi.NamingManager.getObjectInstance
                            (obj, new CompositeName(name), null, env);
                }

		    } else if (obj instanceof NamingObjectProxy) {

                NamingObjectProxy namingProxy = (NamingObjectProxy) obj;

                //this call will make sure that the actual object is initialized
                obj  = ((NamingObjectProxy) obj).create(new InitialContext());

		// If it's an InitialNamingProxy, ignore the result of the
		// create() call and re-lookup the name.
                if( namingProxy instanceof NamingObjectProxy.InitializationNamingObjectProxy ) {
                    return super.lookup(name);
                }
            }
	    } catch(Exception e) {
	        RemoteException re = new RemoteException("", e);
            throw re;
        }  finally {
            if( originalClassLoader != null ) {
                Utility.setContextClassLoader(originalClassLoader);
            }
        }

        return obj;
   }
}