/** * 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.leansoft.luxun.utils; import java.util.HashMap; import java.util.Map; /** * Simple Map factory * */ @SuppressWarnings("unchecked") public class ImmutableMap { public static <K, V> Map<K, V> of(K k, V v) { return of(new KV<K, V>(k, v)); } public static <K, V> Map<K, V> of(K k1, V v1, K k2, V v2) { return of0(new KV<K, V>(k1, v1), new KV<K, V>(k2, v2)); } public static <K, V> Map<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) { return of0(new KV<K, V>(k1, v1), new KV<K, V>(k2, v2), new KV<K, V>(k3, v3)); } public static <K, V> Map<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) { return of0(new KV<K, V>(k1, v1), new KV<K, V>(k2, v2), new KV<K, V>(k3, v3), new KV<K, V>(k4, v4)); } public static <K, V> Map<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) { return of0(new KV<K, V>(k1, v1), new KV<K, V>(k2, v2), new KV<K, V>(k3, v3), new KV<K, V>(k4, v4), new KV<K, V>(k5, v5)); } public static <K, V> Map<K, V> of(KV<K, V> kv) { Map<K, V> map = new HashMap<K, V>(); map.put(kv.k, kv.v); return map; } private static <K, V> Map<K, V> of0(KV<K, V>... kvs) { Map<K, V> map = new HashMap<K, V>(); for (KV<K, V> kv : kvs) { map.put(kv.k, kv.v); } return map; } }