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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/controller/ControlCommand.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.controller; /** * Set of commands that this controller can execute. Commands are comprised * of an action and an optional parameter specific to that action. */ public class ControlCommand { /** * Actions available to the controller */ public enum Action { // Simple "are you there" ping to confirm the controller is up and running. PING, // Shutdown everything, including CommandListener, ControllerService, Controller and the ZooKeeperServer. SHUTDOWN, // Close a connection triggering a client disconnect (and then reconnect attempt). // No parameter indicates close all connections. Optional parameter indicates a specific session id (as long). CLOSECONNECTION, // More actions go here in the future (force drop sessions, etc). EXPIRESESSION, // Reject all future connections. No parameter required. REJECTCONNECTIONS, // Add latency to server replies. // Optional parameter indicates time in milliseconds to delay // (default = 1 second). ADDDELAY, // Fail requests. // Optional parameter indicates how many requests to fail. // (default = all requests until RESET). FAILREQUESTS, // Process requests but do not send a response. // Optional parameter indicates how many requests to fail. // (default = all requests until RESET). NORESPONSE, // No parameter indicates fail all requests. // Optional parameter indicates undo all the chaotic action commands // (reject connections, add delay, fail requests, eat requests and so on...). RESET, // Force the quorum to elect a new leader. ELECTNEWLEADER, // More actions go here in the future... } public static final String ENDPOINT = "command"; public static final String ENDPOINT_PREFIX = ENDPOINT + "/"; private Action action; public Action getAction() { return action; } private String parameter; protected String getParameter() { return parameter; } public ControlCommand(Action action) { this(action, null); } public ControlCommand(Action action, String param) { this.action = action; this.parameter = param; } /** * Create a REST command uri. * @param action The 'verb' of the command. * @param parameter The optional parameter. * @return A string to send to the server as the end of the Uri. */ public static String createCommandUri(Action action, String parameter) { return ENDPOINT_PREFIX + action.toString() + (parameter != null && !parameter.isEmpty() ? "/" + parameter : ""); } /** * Parse a Uri into the required Command action and parameter. * @param commandUri the properly formatted Uri. */ public static ControlCommand parseUri(String commandUri) { if (commandUri == null) { throw new IllegalArgumentException("commandUri can't be null."); } if (!commandUri.startsWith(ENDPOINT_PREFIX)) { throw new IllegalArgumentException("Missing required prefix: " + ENDPOINT_PREFIX); } String uri = commandUri.substring(ENDPOINT_PREFIX.length()); String name; String param; int separatorIndex = uri.indexOf('/'); if (separatorIndex < 0) { name = uri; param = null; } else { name = uri.substring(0, separatorIndex); param = uri.substring(separatorIndex + 1); } return new ControlCommand(Action.valueOf(name.toUpperCase()), param); } }
⏎ org/apache/zookeeper/server/controller/ControlCommand.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, 13094👍, 0💬
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