| /** |
| * 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.distributedlog.zk; |
| |
| import javax.annotation.Nullable; |
| import org.apache.bookkeeper.meta.ZkVersion; |
| import org.apache.bookkeeper.versioning.Version; |
| import org.apache.distributedlog.util.Transaction.OpListener; |
| import org.apache.zookeeper.KeeperException; |
| import org.apache.zookeeper.Op; |
| import org.apache.zookeeper.OpResult; |
| |
| |
| /** |
| * ZooKeeper Operation that plays with {@link org.apache.bookkeeper.versioning.Version}. |
| */ |
| public class ZKVersionedSetOp extends ZKOp { |
| |
| private final OpListener<Version> listener; |
| |
| public ZKVersionedSetOp(Op op, |
| @Nullable OpListener<Version> opListener) { |
| super(op); |
| this.listener = opListener; |
| } |
| |
| @Override |
| protected void commitOpResult(OpResult opResult) { |
| assert(opResult instanceof OpResult.SetDataResult); |
| OpResult.SetDataResult setDataResult = (OpResult.SetDataResult) opResult; |
| if (null != listener) { |
| listener.onCommit(new ZkVersion(setDataResult.getStat().getVersion())); |
| } |
| } |
| |
| @Override |
| protected void abortOpResult(Throwable t, |
| @Nullable OpResult opResult) { |
| Throwable cause; |
| if (null == opResult) { |
| cause = t; |
| } else { |
| assert (opResult instanceof OpResult.ErrorResult); |
| OpResult.ErrorResult errorResult = (OpResult.ErrorResult) opResult; |
| if (KeeperException.Code.OK.intValue() == errorResult.getErr()) { |
| cause = t; |
| } else { |
| cause = KeeperException.create(KeeperException.Code.get(errorResult.getErr())); |
| } |
| } |
| if (null != listener) { |
| listener.onAbort(cause); |
| } |
| } |
| |
| } |