001// *************************************************************************************************************************** 002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * 003// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * 004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance * 005// * with the License. You may obtain a copy of the License at * 006// * * 007// * http://www.apache.org/licenses/LICENSE-2.0 * 008// * * 009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an * 010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * 011// * specific language governing permissions and limitations under the License. * 012// *************************************************************************************************************************** 013package org.apache.juneau.internal; 014 015import java.util.*; 016 017/** 018 * Stores a set of language keywords for quick lookup. 019 */ 020public final class KeywordSet { 021 final String[] store; 022 023 /** 024 * Constructor. 025 * 026 * @param keywords The list of keywords. 027 */ 028 public KeywordSet(String... keywords) { 029 this.store = keywords; 030 Arrays.sort(store); 031 } 032 033 /** 034 * Returns <jk>true</jk> if the specified string exists in this store. 035 * 036 * @param s The string to check. 037 * @return <jk>true</jk> if the specified string exists in this store. 038 */ 039 public boolean contains(String s) { 040 if (s == null || s.length() < 2) 041 return false; 042 return Arrays.binarySearch(store, s) >= 0; 043 } 044}