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Source Code for Connector/J 8.0.31 - User Impl
Where to get the Java source code for Connector/J 8.0 User Impl module?
✍: FYIcenter.com
Java source code files for Connector/J 8.0 User Impl module are:
⏎ com/mysql/cj/jdbc/ConnectionGroup.java
/* * Copyright (c) 2010, 2020, Oracle and/or its affiliates. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License, version 2.0, as published by the * Free Software Foundation. * * This program is also distributed with certain software (including but not * limited to OpenSSL) that is licensed under separate terms, as designated in a * particular file or component or in included license documentation. The * authors of MySQL hereby grant you an additional permission to link the * program and your derivative works with the separately licensed software that * they have included with MySQL. * * Without limiting anything contained in the foregoing, this file, which is * part of MySQL Connector/J, is also subject to the Universal FOSS Exception, * version 1.0, a copy of which can be found at * http://oss.oracle.com/licenses/universal-foss-exception. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0, * for more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ package com.mysql.cj.jdbc; import java.sql.SQLException; import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import com.mysql.cj.Messages; import com.mysql.cj.jdbc.exceptions.SQLError; import com.mysql.cj.jdbc.ha.LoadBalancedConnectionProxy; public class ConnectionGroup { private String groupName; private long connections = 0; private long activeConnections = 0; private HashMap<Long, LoadBalancedConnectionProxy> connectionProxies = new HashMap<>(); private Set<String> hostList = new HashSet<>(); private boolean isInitialized = false; private long closedProxyTotalPhysicalConnections = 0; private long closedProxyTotalTransactions = 0; private int activeHosts = 0; private Set<String> closedHosts = new HashSet<>(); ConnectionGroup(String groupName) { this.groupName = groupName; } public long registerConnectionProxy(LoadBalancedConnectionProxy proxy, List<String> localHostList) { long currentConnectionId; synchronized (this) { if (!this.isInitialized) { this.hostList.addAll(localHostList); this.isInitialized = true; this.activeHosts = localHostList.size(); } currentConnectionId = ++this.connections; this.connectionProxies.put(Long.valueOf(currentConnectionId), proxy); } this.activeConnections++; return currentConnectionId; } public String getGroupName() { return this.groupName; } public Collection<String> getInitialHosts() { return this.hostList; } public int getActiveHostCount() { return this.activeHosts; } public Collection<String> getClosedHosts() { return this.closedHosts; } public long getTotalLogicalConnectionCount() { return this.connections; } public long getActiveLogicalConnectionCount() { return this.activeConnections; } public long getActivePhysicalConnectionCount() { long result = 0; Map<Long, LoadBalancedConnectionProxy> proxyMap = new HashMap<>(); synchronized (this.connectionProxies) { proxyMap.putAll(this.connectionProxies); } for (LoadBalancedConnectionProxy proxy : proxyMap.values()) { result += proxy.getActivePhysicalConnectionCount(); } return result; } public long getTotalPhysicalConnectionCount() { long allConnections = this.closedProxyTotalPhysicalConnections; Map<Long, LoadBalancedConnectionProxy> proxyMap = new HashMap<>(); synchronized (this.connectionProxies) { proxyMap.putAll(this.connectionProxies); } for (LoadBalancedConnectionProxy proxy : proxyMap.values()) { allConnections += proxy.getTotalPhysicalConnectionCount(); } return allConnections; } public long getTotalTransactionCount() { // need to account for closed connection proxies long transactions = this.closedProxyTotalTransactions; Map<Long, LoadBalancedConnectionProxy> proxyMap = new HashMap<>(); synchronized (this.connectionProxies) { proxyMap.putAll(this.connectionProxies); } for (LoadBalancedConnectionProxy proxy : proxyMap.values()) { transactions += proxy.getTransactionCount(); } return transactions; } public void closeConnectionProxy(LoadBalancedConnectionProxy proxy) { this.activeConnections--; this.connectionProxies.remove(Long.valueOf(proxy.getConnectionGroupProxyID())); this.closedProxyTotalPhysicalConnections += proxy.getTotalPhysicalConnectionCount(); this.closedProxyTotalTransactions += proxy.getTransactionCount(); } /** * Remove the given host (host:port pair) from this Connection Group. * * @param hostPortPair * The host:port pair to remove. * @throws SQLException * if a database access error occurs */ public void removeHost(String hostPortPair) throws SQLException { removeHost(hostPortPair, false); } /** * Remove the given host (host:port pair) from this Connection Group. * * @param hostPortPair * The host:port pair to remove. * @param removeExisting * Whether affects existing load-balanced connections or only new ones. * @throws SQLException * if a database access error occurs */ public void removeHost(String hostPortPair, boolean removeExisting) throws SQLException { this.removeHost(hostPortPair, removeExisting, true); } /** * Remove the given host (host:port pair) from this Connection Group and, consequently, from all the load-balanced connections it holds. * * @param hostPortPair * The host:port pair to remove. * @param removeExisting * Whether affects existing load-balanced connections or only new ones. * @param waitForGracefulFailover * If true instructs the load-balanced connections to fail-over the underlying active connection before removing this host, otherwise remove * immediately. * @throws SQLException * if a database access error occurs */ public synchronized void removeHost(String hostPortPair, boolean removeExisting, boolean waitForGracefulFailover) throws SQLException { if (this.activeHosts == 1) { throw SQLError.createSQLException(Messages.getString("ConnectionGroup.0"), null); } if (this.hostList.remove(hostPortPair)) { this.activeHosts--; } else { throw SQLError.createSQLException(Messages.getString("ConnectionGroup.1", new Object[] { hostPortPair }), null); } if (removeExisting) { // make a local copy to keep synchronization overhead to minimum Map<Long, LoadBalancedConnectionProxy> proxyMap = new HashMap<>(); synchronized (this.connectionProxies) { proxyMap.putAll(this.connectionProxies); } for (LoadBalancedConnectionProxy proxy : proxyMap.values()) { if (waitForGracefulFailover) { proxy.removeHostWhenNotInUse(hostPortPair); } else { proxy.removeHost(hostPortPair); } } } this.closedHosts.add(hostPortPair); } /** * Add the given host (host:port pair) to this Connection Group. * * @param hostPortPair * The host:port pair to add. */ public void addHost(String hostPortPair) { addHost(hostPortPair, false); } /** * Add the given host (host:port pair) to this Connection Group and, consequently, to all the load-balanced connections it holds. * * @param hostPortPair * The host:port pair to add. * @param forExisting * Whether affects existing load-balanced connections or only new ones. */ public void addHost(String hostPortPair, boolean forExisting) { synchronized (this) { if (this.hostList.add(hostPortPair)) { this.activeHosts++; } } // all new connections will have this host if (!forExisting) { return; } // make a local copy to keep synchronization overhead to minimum Map<Long, LoadBalancedConnectionProxy> proxyMap = new HashMap<>(); synchronized (this.connectionProxies) { proxyMap.putAll(this.connectionProxies); } for (LoadBalancedConnectionProxy proxy : proxyMap.values()) { proxy.addHost(hostPortPair); } } }
⏎ com/mysql/cj/jdbc/ConnectionGroup.java
Or download all of them as a single archive file:
File name: mysql-connector-java-user-impl-8.0.31.zip File size: 429580 bytes Release date: 2022-09-03 Download
⇒ Downloading mysql-connector-java-5.1.40.zip
⇐ Source Code for Connector/J 8.0.31 - User API
2023-05-09, 7640👍, 0💬
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