| /* |
| * 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. |
| */ |
| package com.taobao.weex.dom; |
| |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * Created by sospartan on 8/23/16. |
| */ |
| public class SafePutConcurrentHashMap<K, V> extends ConcurrentHashMap<K, V> { |
| |
| |
| @Override |
| public void putAll(Map<? extends K, ? extends V> m) { |
| Iterator<? extends Entry<? extends K, ? extends V>> iterator = m.entrySet().iterator(); |
| while (iterator.hasNext()) { |
| Entry<? extends K, ? extends V> item = iterator.next(); |
| if (item.getKey() == null || item.getValue() == null) { |
| iterator.remove(); |
| } |
| } |
| |
| super.putAll(m); |
| } |
| |
| @Override |
| public V put(K key, V value) { |
| if (key == null || value == null) { |
| return null; |
| } |
| return super.put(key, value); |
| } |
| } |