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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/audit/ZKAuditProvider.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.audit; import static org.apache.zookeeper.audit.AuditEvent.FieldName; import java.lang.reflect.Constructor; import org.apache.zookeeper.audit.AuditEvent.Result; import org.apache.zookeeper.server.ServerCnxnFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class ZKAuditProvider { static final String AUDIT_ENABLE = "zookeeper.audit.enable"; static final String AUDIT_IMPL_CLASS = "zookeeper.audit.impl.class"; private static final Logger LOG = LoggerFactory.getLogger(ZKAuditProvider.class); // By default audit logging is disabled private static boolean auditEnabled; private static AuditLogger auditLogger; static { auditEnabled = Boolean.getBoolean(AUDIT_ENABLE); if (auditEnabled) { //initialise only when audit logging is enabled auditLogger = getAuditLogger(); LOG.info("ZooKeeper audit is enabled."); } else { LOG.info("ZooKeeper audit is disabled."); } } private static AuditLogger getAuditLogger() { String auditLoggerClass = System.getProperty(AUDIT_IMPL_CLASS); if (auditLoggerClass == null) { auditLoggerClass = Slf4jAuditLogger.class.getName(); } try { Constructor<?> clientCxnConstructor = Class.forName(auditLoggerClass) .getDeclaredConstructor(); AuditLogger auditLogger = (AuditLogger) clientCxnConstructor.newInstance(); auditLogger.initialize(); return auditLogger; } catch (Exception e) { throw new RuntimeException("Couldn't instantiate " + auditLoggerClass, e); } } /** * @return true if audit log is enabled */ public static boolean isAuditEnabled() { return auditEnabled; } public static void log(String user, String operation, String znode, String acl, String createMode, String session, String ip, Result result) { auditLogger.logAuditEvent(createLogEvent(user, operation, znode, acl, createMode, session, ip, result)); } /** * A helper api for creating an AuditEvent object. */ static AuditEvent createLogEvent(String user, String operation, Result result) { AuditEvent event = new AuditEvent(result); event.addEntry(FieldName.USER, user); event.addEntry(FieldName.OPERATION, operation); return event; } /** * A helper api for creating an AuditEvent object. */ static AuditEvent createLogEvent(String user, String operation, String znode, String acl, String createMode, String session, String ip, Result result) { AuditEvent event = new AuditEvent(result); event.addEntry(FieldName.SESSION, session); event.addEntry(FieldName.USER, user); event.addEntry(FieldName.IP, ip); event.addEntry(FieldName.OPERATION, operation); event.addEntry(FieldName.ZNODE, znode); event.addEntry(FieldName.ZNODE_TYPE, createMode); event.addEntry(FieldName.ACL, acl); return event; } /** * Add audit log for server start and register server stop log. */ public static void addZKStartStopAuditLog() { if (isAuditEnabled()) { log(getZKUser(), AuditConstants.OP_START, Result.SUCCESS); Runtime.getRuntime().addShutdownHook(new Thread(() -> { log(getZKUser(), AuditConstants.OP_STOP, Result.INVOKED); })); } } /** * Add audit log for server start fail. */ public static void addServerStartFailureAuditLog() { if (isAuditEnabled()) { log(ZKAuditProvider.getZKUser(), AuditConstants.OP_START, Result.FAILURE); } } private static void log(String user, String operation, Result result) { auditLogger.logAuditEvent(createLogEvent(user, operation, result)); } /** * User who has started the ZooKeeper server user, it will be the logged-in * user. If no user logged-in then system user. */ public static String getZKUser() { return ServerCnxnFactory.getUserName(); } }
⏎ org/apache/zookeeper/audit/ZKAuditProvider.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, 13932👍, 0💬
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