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package com.sun.enterprise.admin.pluggable;

import com.sun.enterprise.pluggable.PluggableFeatureFactoryBaseImpl;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * An implementation of ClientPluggableFeatureFactory interface using dynamic
 * proxies. This class does not directly implement the interface
 * PluggableFeatureFactory, but an proxy instance implementing the interface
 * can be obtained by a call to the static method getInstance(). In reality,
 * this class implements InvocationHnalder interface used to handle method
 * invocations on a dynamic proxy object.
 */
public class ClientPluggableFeatureFactoryImpl extends PluggableFeatureFactoryBaseImpl {
    /**
     * Private constructor. The public instances of this object are not
     * available. The instance of this class is however used as invocation
     * handler for dynamic proxy returned by static method getInstance().
     */
    public ClientPluggableFeatureFactoryImpl(Logger logger) {
        super(logger);
    }

    protected String getDefaultFeatureFactoryPropertyName() {
        return System.getProperty(
            ClientPluggableFeatureFactory.PLUGGABLE_FEATURES_PROPERTY_NAME);
    }

    protected Object createFeatureFactory(InvocationHandler handler) {
        return Proxy.newProxyInstance(
                ClientPluggableFeatureFactory.class.getClassLoader(),
                new Class[] { ClientPluggableFeatureFactory.class },
                handler);
    }
}