| /* |
| * 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.stress.settings; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.primitives.Ints; |
| |
| public class SettingsTokenRange |
| { |
| public final boolean wrap; |
| public final int splitFactor; |
| |
| public SettingsTokenRange(TokenRangeOptions options) |
| { |
| this.wrap = options.wrap.setByUser(); |
| this.splitFactor = Ints.checkedCast(OptionDistribution.parseLong(options.splitFactor.value())); |
| } |
| |
| private static final class TokenRangeOptions extends GroupedOptions |
| { |
| final OptionSimple wrap = new OptionSimple("wrap", "", null, "Re-use token ranges in order to terminate stress iterations", false); |
| final OptionSimple splitFactor = new OptionSimple("split-factor=", "[0-9]+[bmk]?", "1", "Split every token range by this factor", false); |
| |
| |
| @Override |
| public List<? extends Option> options() |
| { |
| return ImmutableList.<Option>builder().add(wrap, splitFactor).build(); |
| } |
| } |
| |
| public static SettingsTokenRange get(Map<String, String[]> clArgs) |
| { |
| String[] params = clArgs.remove("-tokenrange"); |
| if (params == null) |
| { |
| return new SettingsTokenRange(new TokenRangeOptions()); |
| } |
| TokenRangeOptions options = GroupedOptions.select(params, new TokenRangeOptions()); |
| if (options == null) |
| { |
| printHelp(); |
| System.out.println("Invalid -tokenrange options provided, see output for valid options"); |
| System.exit(1); |
| } |
| return new SettingsTokenRange(options); |
| } |
| |
| public static void printHelp() |
| { |
| GroupedOptions.printOptions(System.out, "-tokenrange", new TokenRangeOptions()); |
| } |
| |
| public static Runnable helpPrinter() |
| { |
| return SettingsTokenRange::printHelp; |
| } |
| } |