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package com.whaleal.icefrog.http.cookie;

import java.net.CookieManager;
import java.net.CookieStore;
import java.net.HttpCookie;
import java.net.URI;
import java.util.List;

/**
 * 线程隔离的Cookie存储。多线程环境下Cookie隔离使用，防止Cookie覆盖

 * 
 * 见：https://stackoverflow.com/questions/16305486/cookiemanager-for-multiple-threads
 *
 * @author Looly
 * @author wh
 * @since 1.0.0
 */
public class ThreadLocalCookieStore implements CookieStore {

    private final static ThreadLocal STORES = new ThreadLocal() {
        @Override
        protected synchronized CookieStore initialValue() {
            /* InMemoryCookieStore */
            return (new CookieManager()).getCookieStore();
        }
    };

    /**
     * 获取本线程下的CookieStore
     *
     * @return CookieStore
     */
    public CookieStore getCookieStore() {
        return STORES.get();
    }

    /**
     * 移除当前线程的Cookie
     *
     * @return this
     */
    public ThreadLocalCookieStore removeCurrent() {
        STORES.remove();
        return this;
    }

    @Override
    public void add( URI uri, HttpCookie cookie ) {
        getCookieStore().add(uri, cookie);
    }

    @Override
    public List get( URI uri ) {
        return getCookieStore().get(uri);
    }

    @Override
    public List getCookies() {
        return getCookieStore().getCookies();
    }

    @Override
    public List getURIs() {
        return getCookieStore().getURIs();
    }

    @Override
    public boolean remove( URI uri, HttpCookie cookie ) {
        return getCookieStore().remove(uri, cookie);
    }

    @Override
    public boolean removeAll() {
        return getCookieStore().removeAll();
    }
}