| /* |
| * 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.distributed.api; |
| |
| import java.net.InetSocketAddress; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.UUID; |
| import java.util.function.Function; |
| |
| import org.apache.cassandra.distributed.shared.NetworkTopology; |
| import org.apache.cassandra.distributed.shared.Versions; |
| |
| public interface IInstanceConfig |
| { |
| IInstanceConfig with(Feature featureFlag); |
| |
| IInstanceConfig with(Feature... flags); |
| |
| int num(); |
| |
| UUID hostId(); |
| |
| InetSocketAddress broadcastAddress(); |
| |
| NetworkTopology networkTopology(); |
| |
| String localRack(); |
| |
| String localDatacenter(); |
| |
| /** |
| * write the specified parameters to the Config object; we do not specify Config as the type to support a Config |
| * from any ClassLoader; the implementation must not directly access any fields of the Object, or cast it, but |
| * must use the reflection API to modify the state |
| */ |
| void propagate(Object writeToConfig, Map<Class<?>, Function<Object, Object>> executor); |
| |
| /** |
| * Validates whether the config properties are within range of accepted values. |
| */ |
| void validate(); |
| |
| IInstanceConfig set(String fieldName, Object value); |
| |
| Object get(String fieldName); |
| |
| String getString(String fieldName); |
| |
| int getInt(String fieldName); |
| |
| boolean has(Feature featureFlag); |
| |
| public IInstanceConfig forVersion(Versions.Major major); |
| |
| public static class ParameterizedClass |
| { |
| public static final String CLASS_NAME = "class_name"; |
| public static final String PARAMETERS = "parameters"; |
| |
| public String class_name; |
| public Map<String, String> parameters; |
| |
| public ParameterizedClass(String class_name, Map<String, String> parameters) |
| { |
| this.class_name = class_name; |
| this.parameters = parameters; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public ParameterizedClass(Map<String, ?> p) |
| { |
| this((String) p.get(CLASS_NAME), |
| p.containsKey(PARAMETERS) ? (Map<String, String>) ((List<?>) p.get(PARAMETERS)).get(0) : null); |
| } |
| |
| @Override |
| public boolean equals(Object that) |
| { |
| return that instanceof ParameterizedClass && equals((ParameterizedClass) that); |
| } |
| |
| public boolean equals(ParameterizedClass that) |
| { |
| return Objects.equals(class_name, that.class_name) && Objects.equals(parameters, that.parameters); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return class_name + (parameters == null ? "" : parameters.toString()); |
| } |
| } |
| } |