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package com.sun.enterprise.naming.factory;

import com.sun.enterprise.ComponentInvocation;
import com.sun.enterprise.InvocationManager;
import com.sun.enterprise.Switch;
import com.sun.enterprise.connectors.*;
import com.sun.enterprise.deployment.ConnectorDescriptor;
import com.sun.enterprise.resource.ResourceInstaller;
import com.sun.logging.LogDomains;
import java.util.Hashtable;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.naming.ConfigurationException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.naming.NamingException;
import javax.naming.Reference;
import javax.naming.spi.ObjectFactory;

/**
 * An object factory to handle creation of administered object
 *
 * @author	Qingqing Ouyang
 *
 */
public class AdministeredObjectFactory implements ObjectFactory {

    private static Logger logger = 
    LogDomains.getLogger(LogDomains.RSR_LOGGER);

    //required by ObjectFactory
    public AdministeredObjectFactory() {}

    public Object getObjectInstance(Object obj, 
				    Name name, 
				    Context nameCtx,
				    Hashtable env) throws Exception {

	Reference ref = (Reference) obj;
	logger.fine("AdministeredObjectFactory: " + ref + 
		    " Name:" + name);	

        //String jndiName = (String) ref.get(0).getContent();
        AdministeredObjectResource aor = 
            (AdministeredObjectResource) ref.get(0).getContent();
        String jndiName = aor.getName();
        String moduleName = aor.getResourceAdapter();
	
	ConnectorRuntime runtime = ConnectorRuntime.getRuntime();
    
        //If call fom application client, start resource adapter lazily.
        //todo: Similar code in ConnectorObjectFactory - to refactor.
        if(runtime.getEnviron() == ConnectorRuntime.CLIENT) {
            ConnectorDescriptor connectorDescriptor = null; 
            try {        
                Context ic = new InitialContext();              
                String descriptorJNDIName = ConnectorAdminServiceUtils.
                    getReservePrefixedJNDINameForDescriptor(moduleName);
                connectorDescriptor = (ConnectorDescriptor)ic.lookup(descriptorJNDIName); 
            } catch(NamingException ne) {
                logger.log(Level.FINE, "Failed to look up ConnectorDescriptor " +
                                            "from JNDI", moduleName); 
                throw new ConnectorRuntimeException("Failed to look up " +
                                                "ConnectorDescriptor from JNDI");
            }
            runtime.createActiveResourceAdapter(connectorDescriptor, moduleName,
                            null);
        }
    
        ClassLoader loader = Thread.currentThread().getContextClassLoader();
        if (runtime.checkAccessibility(moduleName, loader) == false) {
	    throw new NamingException("Only the application that has the embedded resource" + 
	                               "adapter can access the resource adapter");
	}

	logger.fine("[AdministeredObjectFactory] ==> Got AdministeredObjectResource = " + aor);    

	return aor.createAdministeredObject(null);
    }

}