com.maxifier.mxcache.proxy.MxProxyGenerator Maven / Gradle / Ivy

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/*
 * Copyright (c) 2008-2014 Maxifier Ltd. All Rights Reserved.
 */
package com.maxifier.mxcache.proxy;

import gnu.trove.map.hash.THashMap;

import java.util.Map;

/**
 * @author Alexander Kochurov ([email protected])
 */
public final class MxProxyGenerator {
    private static final Map PROXY_MAP = new THashMap();
    private static final Map GENERIC_PROXY_MAP = new THashMap();

    private MxProxyGenerator() {
    }

    /**
     * Creates a proxy factory for given interface.
     *
     * @param sourceClass    source interface
     * @param containerClass container type interface
     * @return created factory
     */
    public static synchronized > MxProxyFactory getProxyFactory(Class sourceClass, Class containerClass) {
        MxProxyFactory proxy = new MxProxyFactory(sourceClass, containerClass);
        @SuppressWarnings({"unchecked"})
        MxProxyFactory oldProxy = PROXY_MAP.get(proxy);
        if (oldProxy == null) {
            PROXY_MAP.put(proxy, proxy);
            return proxy;
        }
        return oldProxy;
    }

    /**
     * Creates generic proxy factory of given type.
     * The difference between usual and generic proxy factory is that proxies created by generic proxy will implement
     * not only target interface but also all its subinterfaces that initial object has.
     *
     * @param sourceClass    source interface
     * @param containerClass container type interface
     * @return created factory
     */
    public static synchronized > MxGenericProxyFactory getGenericProxyFactory(Class sourceClass, Class containerClass) {
        MxGenericProxyFactory proxy = new MxGenericProxyFactory(sourceClass, containerClass);
        @SuppressWarnings({"unchecked"})
        MxGenericProxyFactory oldProxy = GENERIC_PROXY_MAP.get(proxy);
        if (oldProxy == null) {
            GENERIC_PROXY_MAP.put(proxy, proxy);
            return proxy;
        }
        return oldProxy;
    }
}