/*
    * ====================================================================
    * 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.client;
  
  import java.util.HashMap;
  
  import org.apache.http.HttpHost;
  import org.apache.http.annotation.NotThreadSafe;
  import org.apache.http.auth.AuthScheme;
  import org.apache.http.client.AuthCache;
  import org.apache.http.conn.SchemePortResolver;
  import org.apache.http.impl.conn.DefaultSchemePortResolver;
  import org.apache.http.util.Args;
  
  /**
   * Default implementation of {@link AuthCache}.
   *
   * @since 4.0
   */
  @NotThreadSafe
  public class BasicAuthCache implements AuthCache {
  
      private final HashMap<HttpHost, AuthScheme> map;
      private final SchemePortResolver schemePortResolver;
  
      /**
       * Default constructor.
       *
       * @since 4.3
       */
      public BasicAuthCache(final SchemePortResolver schemePortResolver) {
          super();
          this.map = new HashMap<HttpHost, AuthScheme>();
          this.schemePortResolver = schemePortResolver != null ? schemePortResolver :
              DefaultSchemePortResolver.INSTANCE;
      }
  
      public BasicAuthCache() {
          this(null);
      }
  
      protected HttpHost getKey(final HttpHost host) {
          if (host.getPort() <= 0) {
              final int port = schemePortResolver.resolve(host);
              return new HttpHost(host.getHostName(), port, host.getSchemeName());
          } else {
              return host;
          }
      }
  
      public void put(final HttpHost host, final AuthScheme authScheme) {
          Args.notNull(host, "HTTP host");
          this.map.put(getKey(host), authScheme);
      }
  
      public AuthScheme get(final HttpHost host) {
          Args.notNull(host, "HTTP host");
          return this.map.get(getKey(host));
      }
  
      public void remove(final HttpHost host) {
          Args.notNull(host, "HTTP host");
          this.map.remove(getKey(host));
      }
  
      public void clear() {
          this.map.clear();
      }
  
      @Override
      public String toString() {
          return this.map.toString();
      }
  
  }