| /* |
| * 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 org.apache.cassandra.cql3; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Set; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.collect.ImmutableSet; |
| |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| |
| class ReservedKeywords |
| { |
| |
| private static final String FILE_NAME = "reserved_keywords.txt"; |
| |
| @VisibleForTesting |
| static final Set<String> reservedKeywords = getFromResource(); |
| |
| private static Set<String> getFromResource() |
| { |
| ImmutableSet.Builder<String> builder = ImmutableSet.builder(); |
| try (InputStream is = ReservedKeywords.class.getResource(FILE_NAME).openConnection().getInputStream(); |
| BufferedReader r = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8))) |
| { |
| String line; |
| while ((line = r.readLine()) != null) |
| { |
| builder.add(line.trim()); |
| } |
| } |
| catch (IOException e) |
| { |
| throw new ConfigurationException(String.format("Unable to read reserved keywords file '%s'", FILE_NAME), e); |
| } |
| return builder.build(); |
| } |
| |
| static boolean isReserved(String text) |
| { |
| return reservedKeywords.contains(text.toUpperCase()); |
| } |
| } |