| /** |
| * 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.curator.framework.imps; |
| |
| import org.apache.curator.RetryLoop; |
| import org.apache.curator.TimeTrace; |
| import org.apache.curator.framework.api.*; |
| import org.apache.curator.framework.api.BackgroundCallback; |
| import org.apache.curator.framework.api.CuratorEventType; |
| import org.apache.curator.framework.api.CuratorEvent; |
| import org.apache.curator.framework.api.SetACLBuilder; |
| import org.apache.zookeeper.AsyncCallback; |
| import org.apache.zookeeper.data.ACL; |
| import org.apache.zookeeper.data.Stat; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.Executor; |
| |
| class SetACLBuilderImpl implements SetACLBuilder, BackgroundPathable<Stat>, BackgroundOperation<String> |
| { |
| private final CuratorFrameworkImpl client; |
| |
| private ACLing acling; |
| private Backgrounding backgrounding; |
| private int version; |
| |
| SetACLBuilderImpl(CuratorFrameworkImpl client) |
| { |
| this.client = client; |
| backgrounding = new Backgrounding(); |
| acling = new ACLing(client.getAclProvider()); |
| version = -1; |
| } |
| |
| @Override |
| public BackgroundPathable<Stat> withACL(List<ACL> aclList) |
| { |
| acling = new ACLing(client.getAclProvider(), aclList); |
| return this; |
| } |
| |
| @Override |
| public ACLable<BackgroundPathable<Stat>> withVersion(int version) |
| { |
| this.version = version; |
| return this; |
| } |
| |
| @Override |
| public Pathable<Stat> inBackground() |
| { |
| backgrounding = new Backgrounding(true); |
| return this; |
| } |
| |
| @Override |
| public Pathable<Stat> inBackground(Object context) |
| { |
| backgrounding = new Backgrounding(context); |
| return this; |
| } |
| |
| @Override |
| public Pathable<Stat> inBackground(BackgroundCallback callback) |
| { |
| backgrounding = new Backgrounding(callback); |
| return this; |
| } |
| |
| @Override |
| public Pathable<Stat> inBackground(BackgroundCallback callback, Object context) |
| { |
| backgrounding = new Backgrounding(callback, context); |
| return this; |
| } |
| |
| @Override |
| public Pathable<Stat> inBackground(BackgroundCallback callback, Object context, Executor executor) |
| { |
| backgrounding = new Backgrounding(client, callback, context, executor); |
| return this; |
| } |
| |
| @Override |
| public Pathable<Stat> inBackground(BackgroundCallback callback, Executor executor) |
| { |
| backgrounding = new Backgrounding(client, callback, executor); |
| return this; |
| } |
| |
| @Override |
| public Stat forPath(String path) throws Exception |
| { |
| path = client.fixForNamespace(path); |
| |
| Stat resultStat = null; |
| if ( backgrounding.inBackground() ) |
| { |
| client.processBackgroundOperation(new OperationAndData<String>(this, path, backgrounding.getCallback(), null, backgrounding.getContext()), null); |
| } |
| else |
| { |
| resultStat = pathInForeground(path); |
| } |
| return resultStat; |
| } |
| |
| @Override |
| public void performBackgroundOperation(final OperationAndData<String> operationAndData) throws Exception |
| { |
| final TimeTrace trace = client.getZookeeperClient().startTracer("SetACLBuilderImpl-Background"); |
| String path = operationAndData.getData(); |
| client.getZooKeeper().setACL |
| ( |
| path, |
| acling.getAclList(path), |
| version, |
| new AsyncCallback.StatCallback() |
| { |
| @SuppressWarnings({"unchecked"}) |
| @Override |
| public void processResult(int rc, String path, Object ctx, Stat stat) |
| { |
| trace.commit(); |
| CuratorEvent event = new CuratorEventImpl(client, CuratorEventType.SET_ACL, rc, path, null, ctx, stat, null, null, null, null, null); |
| client.processBackgroundOperation(operationAndData, event); |
| } |
| }, |
| backgrounding.getContext() |
| ); |
| } |
| |
| private Stat pathInForeground(final String path) throws Exception |
| { |
| TimeTrace trace = client.getZookeeperClient().startTracer("SetACLBuilderImpl-Foreground"); |
| Stat resultStat = RetryLoop.callWithRetry |
| ( |
| client.getZookeeperClient(), |
| new Callable<Stat>() |
| { |
| @Override |
| public Stat call() throws Exception |
| { |
| return client.getZooKeeper().setACL(path, acling.getAclList(path), version); |
| } |
| } |
| ); |
| trace.commit(); |
| return resultStat; |
| } |
| } |