Java tutorial
package org.eclipse.aether.transport.http; /* * 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. */ import java.util.HashMap; import java.util.Map; import org.apache.http.HttpHost; import org.apache.http.auth.AuthScheme; import org.apache.http.client.AuthCache; /** * Auth scheme cache that upon clearing releases all cached schemes into a pool for future reuse by other requests, * thereby reducing challenge-response roundtrips. */ final class SharingAuthCache implements AuthCache { private final LocalState state; private final Map<HttpHost, AuthScheme> authSchemes; SharingAuthCache(LocalState state) { this.state = state; authSchemes = new HashMap<HttpHost, AuthScheme>(); } private static HttpHost toKey(HttpHost host) { if (host.getPort() <= 0) { int port = host.getSchemeName().equalsIgnoreCase("https") ? 443 : 80; return new HttpHost(host.getHostName(), port, host.getSchemeName()); } return host; } public AuthScheme get(HttpHost host) { host = toKey(host); AuthScheme authScheme = authSchemes.get(host); if (authScheme == null) { authScheme = state.getAuthScheme(host); authSchemes.put(host, authScheme); } return authScheme; } public void put(HttpHost host, AuthScheme authScheme) { if (authScheme != null) { authSchemes.put(toKey(host), authScheme); } else { remove(host); } } public void remove(HttpHost host) { authSchemes.remove(toKey(host)); } public void clear() { share(); authSchemes.clear(); } private void share() { for (Map.Entry<HttpHost, AuthScheme> entry : authSchemes.entrySet()) { state.setAuthScheme(entry.getKey(), entry.getValue()); } } @Override public String toString() { return authSchemes.toString(); } }