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package com.sun.ejb.containers.builder;

import java.lang.reflect.Method;

import java.net.InetAddress;

import java.util.logging.Logger;
import java.util.logging.Level;

import com.sun.ejb.spi.sfsb.initialization.PersistenceStrategyBuilder;
import com.sun.ejb.spi.sfsb.initialization.SFSBContainerInitialization;
import com.sun.ejb.spi.sfsb.util.CheckpointPolicy;

import com.sun.ejb.base.container.util.CacheProperties;

import com.sun.ejb.base.sfsb.util.CheckpointPolicyImpl;
import com.sun.ejb.base.sfsb.util.ScrambledKeyGenerator;
import com.sun.ejb.base.sfsb.util.SimpleKeyGenerator;

import com.sun.ejb.containers.BaseContainer;
import com.sun.ejb.containers.StatefulSessionContainer;

import com.sun.enterprise.config.ConfigContext;

import com.sun.enterprise.deployment.EjbDescriptor;
import com.sun.enterprise.deployment.EjbMessageBeanDescriptor;

import com.sun.enterprise.SecurityManager;
import com.sun.enterprise.util.Utility;

import com.sun.logging.LogDomains;

/**
 * (Abstract)Base class for all ContainerBuilders
 *
 * @author Mahesh Kannan
 */
public abstract class BaseContainerBuilder {

    protected static final Logger _logger =
        LogDomains.getLogger(LogDomains.EJB_LOGGER);

    protected EjbDescriptor		    ejbDescriptor;
    protected ClassLoader		    loader;
    protected BaseContainer		    baseContainer;

    //Following two variables are used for constructing SFSBUUIDUtil
    private byte[]			    ipAddress;
    private int				    port;

    public BaseContainerBuilder() {
    }

    public final void buildContainer(EjbDescriptor ejbDescriptor,
	    ClassLoader loader, ConfigContext dynamicConfigContext)
	throws Exception
    {
	this.ejbDescriptor = ejbDescriptor;
	this.loader = loader;

	readDescriptor();

	baseContainer = createContainer(ejbDescriptor, loader); //abstract method
	buildComponents(dynamicConfigContext);  //abstract method
    }
    
    public final BaseContainer getContainer() {
	return baseContainer;
    }

    //Currently not called from ContainerFactoryImpl.
    public final void postInitialize(SecurityManager sm) {
	//baseContainer.setSecurityManager(sm);

	boolean hasHome = !(ejbDescriptor instanceof EjbMessageBeanDescriptor);
	if (hasHome) {
	    //Currently BaseContainer.initializeHome is protected.
	    //baseContainer.initializeHome();
	}
    }

    ///////////////// Protected methods /////////////////

    protected abstract BaseContainer createContainer(
	    EjbDescriptor ejbDescriptor, ClassLoader loader)
	throws Exception;

    protected abstract void buildComponents(ConfigContext dynamicConfigContext)
	throws Exception;

    protected byte[] getIPAddress() {
	return this.ipAddress;
    }

    protected int getPort() {
	return this.port;
    }

    ////////////////// Private methods //////////////////

    private void readDescriptor() {
	//FIXME: Read from domain.xml iiop-service ip-addr
	this.ipAddress = new byte[4];
	try {
	    this.ipAddress = InetAddress.getLocalHost().getAddress();
	} catch (Exception ex) {
	    long val = System.identityHashCode(ipAddress)
		+ System.currentTimeMillis();
	    Utility.longToBytes(val, this.ipAddress, 0);
	}

	//FIXME: Read from domain.xml
	this.port = 8080;
    }

}