| /** |
| * 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.ACLPathAndBytesable; |
| import org.apache.curator.framework.api.BackgroundCallback; |
| import org.apache.curator.framework.api.BackgroundPathAndBytesable; |
| import org.apache.curator.framework.api.CuratorEvent; |
| import org.apache.curator.framework.api.CuratorEventType; |
| import org.apache.curator.framework.api.PathAndBytesable; |
| import org.apache.curator.framework.api.SetDataBackgroundVersionable; |
| import org.apache.curator.framework.api.SetDataBuilder; |
| import org.apache.curator.framework.api.transaction.CuratorTransactionBridge; |
| import org.apache.curator.framework.api.transaction.OperationType; |
| import org.apache.curator.framework.api.transaction.TransactionSetDataBuilder; |
| import org.apache.zookeeper.AsyncCallback; |
| import org.apache.zookeeper.Op; |
| import org.apache.zookeeper.data.Stat; |
| |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.Executor; |
| |
| class SetDataBuilderImpl implements SetDataBuilder, BackgroundOperation<PathAndBytes> |
| { |
| private final CuratorFrameworkImpl client; |
| private Backgrounding backgrounding; |
| private int version; |
| private boolean compress; |
| |
| SetDataBuilderImpl(CuratorFrameworkImpl client) |
| { |
| this.client = client; |
| backgrounding = new Backgrounding(); |
| version = -1; |
| compress = false; |
| } |
| |
| TransactionSetDataBuilder asTransactionSetDataBuilder(final CuratorTransactionImpl curatorTransaction, final CuratorMultiTransactionRecord transaction) |
| { |
| return new TransactionSetDataBuilder() |
| { |
| @Override |
| public CuratorTransactionBridge forPath(String path, byte[] data) throws Exception |
| { |
| if ( compress ) |
| { |
| data = client.getCompressionProvider().compress(path, data); |
| } |
| |
| String fixedPath = client.fixForNamespace(path); |
| transaction.add(Op.setData(fixedPath, data, version), OperationType.SET_DATA, path); |
| return curatorTransaction; |
| } |
| |
| @Override |
| public CuratorTransactionBridge forPath(String path) throws Exception |
| { |
| return forPath(path, client.getDefaultData()); |
| } |
| |
| @Override |
| public PathAndBytesable<CuratorTransactionBridge> withVersion(int version) |
| { |
| SetDataBuilderImpl.this.withVersion(version); |
| return this; |
| } |
| |
| @Override |
| public PathAndBytesable<CuratorTransactionBridge> compressed() { |
| compress = true; |
| |
| return this; |
| } |
| }; |
| } |
| |
| @Override |
| public SetDataBackgroundVersionable compressed() |
| { |
| compress = true; |
| return new SetDataBackgroundVersionable() |
| { |
| @Override |
| public PathAndBytesable<Stat> inBackground() |
| { |
| return SetDataBuilderImpl.this.inBackground(); |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback, Object context) |
| { |
| return SetDataBuilderImpl.this.inBackground(callback, context); |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback, Object context, Executor executor) |
| { |
| return SetDataBuilderImpl.this.inBackground(callback, context, executor); |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(Object context) |
| { |
| return SetDataBuilderImpl.this.inBackground(context); |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback) |
| { |
| return SetDataBuilderImpl.this.inBackground(callback); |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback, Executor executor) |
| { |
| return SetDataBuilderImpl.this.inBackground(callback, executor); |
| } |
| |
| @Override |
| public Stat forPath(String path, byte[] data) throws Exception |
| { |
| return SetDataBuilderImpl.this.forPath(path, data); |
| } |
| |
| @Override |
| public Stat forPath(String path) throws Exception |
| { |
| return SetDataBuilderImpl.this.forPath(path); |
| } |
| |
| @Override |
| public BackgroundPathAndBytesable<Stat> withVersion(int version) |
| { |
| return SetDataBuilderImpl.this.withVersion(version); |
| } |
| }; |
| } |
| |
| @Override |
| public BackgroundPathAndBytesable<Stat> withVersion(int version) |
| { |
| this.version = version; |
| return this; |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback, Object context) |
| { |
| backgrounding = new Backgrounding(callback, context); |
| return this; |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback, Object context, Executor executor) |
| { |
| backgrounding = new Backgrounding(client, callback, context, executor); |
| return this; |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback) |
| { |
| backgrounding = new Backgrounding(callback); |
| return this; |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground() |
| { |
| backgrounding = new Backgrounding(true); |
| return this; |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(Object context) |
| { |
| backgrounding = new Backgrounding(context); |
| return this; |
| } |
| |
| @Override |
| public PathAndBytesable<Stat> inBackground(BackgroundCallback callback, Executor executor) |
| { |
| backgrounding = new Backgrounding(client, callback, executor); |
| return this; |
| } |
| |
| @Override |
| public void performBackgroundOperation(final OperationAndData<PathAndBytes> operationAndData) throws Exception |
| { |
| final TimeTrace trace = client.getZookeeperClient().startTracer("SetDataBuilderImpl-Background"); |
| client.getZooKeeper().setData |
| ( |
| operationAndData.getData().getPath(), |
| operationAndData.getData().getData(), |
| 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_DATA, rc, path, null, ctx, stat, null, null, null, null); |
| client.processBackgroundOperation(operationAndData, event); |
| } |
| }, |
| backgrounding.getContext() |
| ); |
| } |
| |
| @Override |
| public Stat forPath(String path) throws Exception |
| { |
| return forPath(path, client.getDefaultData()); |
| } |
| |
| @Override |
| public Stat forPath(String path, byte[] data) throws Exception |
| { |
| if ( compress ) |
| { |
| data = client.getCompressionProvider().compress(path, data); |
| } |
| |
| path = client.fixForNamespace(path); |
| |
| Stat resultStat = null; |
| if ( backgrounding.inBackground() ) |
| { |
| client.processBackgroundOperation(new OperationAndData<PathAndBytes>(this, new PathAndBytes(path, data), backgrounding.getCallback(), null, backgrounding.getContext()), null); |
| } |
| else |
| { |
| resultStat = pathInForeground(path, data); |
| } |
| return resultStat; |
| } |
| |
| int getVersion() |
| { |
| return version; |
| } |
| |
| private Stat pathInForeground(final String path, final byte[] data) throws Exception |
| { |
| TimeTrace trace = client.getZookeeperClient().startTracer("SetDataBuilderImpl-Foreground"); |
| Stat resultStat = RetryLoop.callWithRetry |
| ( |
| client.getZookeeperClient(), |
| new Callable<Stat>() |
| { |
| @Override |
| public Stat call() throws Exception |
| { |
| return client.getZooKeeper().setData(path, data, version); |
| } |
| } |
| ); |
| trace.commit(); |
| return resultStat; |
| } |
| } |