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Apache ZooKeeper Server Source Code
Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination.
Apache ZooKeeper Server Source Code files are provided in the source package file, apache-zookeeper-3.8.0.tar.gz.
You can download apache-zookeeper-3.8.0.tar.gz as described in the previous tutorial and go to the "zookeeper-server" sub-folder to view Apache ZooKeeper Server Source Code files.
You can also browse Apache ZooKeeper Server Source Code below:
✍: FYIcenter.com
⏎ org/apache/zookeeper/common/AtomicFileWritingIdiom.java
/* * 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.zookeeper.common; import java.io.BufferedWriter; import java.io.File; import java.io.IOException; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.Writer; /* * Used to perform an atomic write into a file. * If there is a failure in the middle of the writing operation, * the original file (if it exists) is left intact. * Based on the org.apache.zookeeper.server.quorum.QuorumPeer.writeLongToFile(...) idiom * using the HDFS AtomicFileOutputStream class. */ public class AtomicFileWritingIdiom { public interface OutputStreamStatement { void write(OutputStream os) throws IOException; } public interface WriterStatement { void write(Writer os) throws IOException; } public AtomicFileWritingIdiom(File targetFile, OutputStreamStatement osStmt) throws IOException { this(targetFile, osStmt, null); } public AtomicFileWritingIdiom(File targetFile, WriterStatement wStmt) throws IOException { this(targetFile, null, wStmt); } private AtomicFileWritingIdiom( File targetFile, OutputStreamStatement osStmt, WriterStatement wStmt) throws IOException { AtomicFileOutputStream out = null; boolean triedToClose = false; try { out = new AtomicFileOutputStream(targetFile); if (wStmt == null) { // execute output stream operation osStmt.write(out); } else { BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(out)); // execute writer operation and flush wStmt.write(bw); bw.flush(); } triedToClose = true; // close() will do the best to clean up file/resources in case of errors // worst case the tmp file may still exist out.close(); // everything went ok } finally { // nothing interesting to do if out == null if (out != null) { if (!triedToClose) { // worst case here the tmp file/resources(fd) are not cleaned up // and the caller will be notified (IOException) out.abort(); } } } } }
⏎ org/apache/zookeeper/common/AtomicFileWritingIdiom.java
Or download all of them as a single archive file:
File name: zookeeper-server-3.8.0-fyi.zip File size: 885581 bytes Release date: 2022-02-25 Download
⇒ Apache ZooKeeper Jute Source Code
⇐ Download and Install Apache ZooKeeper Source Package
2022-11-16, 13714👍, 0💬
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