| /* |
| * 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.exceptions; |
| |
| import org.apache.cassandra.db.ConsistencyLevel; |
| |
| public class UnavailableException extends RequestExecutionException |
| { |
| public final ConsistencyLevel consistency; |
| public final int required; |
| public final int alive; |
| |
| public static UnavailableException create(ConsistencyLevel consistency, int required, int alive) |
| { |
| assert alive < required; |
| return create(consistency, required, 0, alive, 0); |
| } |
| |
| public static UnavailableException create(ConsistencyLevel consistency, int required, int requiredFull, int alive, int aliveFull) |
| { |
| if (required > alive) |
| return new UnavailableException("Cannot achieve consistency level " + consistency, consistency, required, alive); |
| assert requiredFull < aliveFull; |
| return new UnavailableException("Insufficient full replicas", consistency, required, alive); |
| } |
| |
| public static UnavailableException create(ConsistencyLevel consistency, String dc, int required, int requiredFull, int alive, int aliveFull) |
| { |
| if (required > alive) |
| return new UnavailableException("Cannot achieve consistency level " + consistency + " in DC " + dc, consistency, required, alive); |
| assert requiredFull < aliveFull; |
| return new UnavailableException("Insufficient full replicas in DC " + dc, consistency, required, alive); |
| } |
| |
| public UnavailableException(String msg, ConsistencyLevel consistency, int required, int alive) |
| { |
| super(ExceptionCode.UNAVAILABLE, msg); |
| this.consistency = consistency; |
| this.required = required; |
| this.alive = alive; |
| } |
| } |