1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27 package org.apache.hc.client5.http.impl.cache;
28
29 import java.util.LinkedHashMap;
30 import java.util.Map;
31
32 import org.apache.hc.client5.http.cache.HttpCacheEntry;
33
34 final class CacheMap extends LinkedHashMap<String, HttpCacheEntry> {
35
36 private static final long serialVersionUID = -7750025207539768511L;
37
38 private final int maxEntries;
39
40 CacheMap(final int maxEntries) {
41 super(20, 0.75f, true);
42 this.maxEntries = maxEntries;
43 }
44
45 @Override
46 protected boolean removeEldestEntry(final Map.Entry<String, HttpCacheEntry> eldest) {
47 return size() > this.maxEntries;
48 }
49
50 }