Java tutorial
/* * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.http.impl.cookie; import org.apache.http.annotation.Immutable; import org.apache.http.annotation.Obsolete; import org.apache.http.cookie.CookieSpec; import org.apache.http.cookie.CookieSpecProvider; import org.apache.http.protocol.HttpContext; /** * {@link org.apache.http.cookie.CookieSpecProvider} implementation that provides an instance of * {@link NetscapeDraftSpec}. The instance returned by this factory * can be shared by multiple threads. * <p> * Rendered obsolete by {@link org.apache.http.impl.cookie.RFC6265CookieSpecProvider} * * @since 4.4 * @see org.apache.http.impl.cookie.RFC6265CookieSpecProvider */ @Obsolete @Immutable public class NetscapeDraftSpecProvider implements CookieSpecProvider { private final String[] datepatterns; private volatile CookieSpec cookieSpec; public NetscapeDraftSpecProvider(final String[] datepatterns) { super(); this.datepatterns = datepatterns; } public NetscapeDraftSpecProvider() { this(null); } @Override public CookieSpec create(final HttpContext context) { if (cookieSpec == null) { synchronized (this) { if (cookieSpec == null) { this.cookieSpec = new NetscapeDraftSpec(this.datepatterns); } } } return this.cookieSpec; } }