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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/server/watch/PathParentIterator.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.server.watch; import java.util.Iterator; import java.util.NoSuchElementException; /** * Iterates over a ZooKeeper path. Each iteration goes up one parent path. Thus, the * effect of the iterator is to iterate over the initial path and then all of its parents. */ public class PathParentIterator implements Iterator<String> { private String path; private final int maxLevel; private int level = -1; /** * Return a new PathParentIterator that iterates from the * given path to all parents. * * @param path initial path */ public static PathParentIterator forAll(String path) { return new PathParentIterator(path, Integer.MAX_VALUE); } /** * Return a new PathParentIterator that only returns the given path - i.e. * does not iterate to parent paths. * * @param path initial path */ public static PathParentIterator forPathOnly(String path) { return new PathParentIterator(path, 0); } private PathParentIterator(String path, int maxLevel) { // NOTE: asserts that the path has already been validated this.path = path; this.maxLevel = maxLevel; } /** * Return an Iterable view so that this Iterator can be used in for each * statements. IMPORTANT: the returned Iterable is single use only * @return Iterable */ public Iterable<String> asIterable() { return () -> PathParentIterator.this; } @Override public boolean hasNext() { return !path.isEmpty() && (level < maxLevel); } /** * Returns true if this iterator is currently at a parent path as opposed * to the initial path given to the constructor * * @return true/false */ public boolean atParentPath() { return level > 0; } @Override public String next() { if (!hasNext()) { throw new NoSuchElementException(); } String localPath = path; ++level; if (path.equals("/")) { path = ""; } else { path = path.substring(0, path.lastIndexOf('/')); if (path.length() == 0) { path = "/"; } } return localPath; } @Override public void remove() { throw new UnsupportedOperationException(); } }
⏎ org/apache/zookeeper/server/watch/PathParentIterator.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, 13695👍, 0💬
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