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/*
* Copyright (c) 2013, 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.ha;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;
public class ReplicationConnectionGroupManager {
private static HashMap GROUP_MAP = new HashMap<>();
private static com.mysql.cj.jdbc.jmx.ReplicationGroupManager mbean = new com.mysql.cj.jdbc.jmx.ReplicationGroupManager();
private static boolean hasRegisteredJmx = false;
public static synchronized ReplicationConnectionGroup getConnectionGroupInstance(String groupName) {
if (GROUP_MAP.containsKey(groupName)) {
return GROUP_MAP.get(groupName);
}
ReplicationConnectionGroup group = new ReplicationConnectionGroup(groupName);
GROUP_MAP.put(groupName, group);
return group;
}
public static void registerJmx() throws SQLException {
if (hasRegisteredJmx) {
return;
}
mbean.registerJmx();
hasRegisteredJmx = true;
}
public static ReplicationConnectionGroup getConnectionGroup(String groupName) {
return GROUP_MAP.get(groupName);
}
public static Collection getGroupsMatching(String group) {
if (group == null || group.equals("")) {
Set s = new HashSet<>();
s.addAll(GROUP_MAP.values());
return s;
}
Set s = new HashSet<>();
ReplicationConnectionGroup o = GROUP_MAP.get(group);
if (o != null) {
s.add(o);
}
return s;
}
public static void addSlaveHost(String group, String hostPortPair) throws SQLException {
Collection s = getGroupsMatching(group);
for (ReplicationConnectionGroup cg : s) {
cg.addSlaveHost(hostPortPair);
}
}
public static void removeSlaveHost(String group, String hostPortPair) throws SQLException {
removeSlaveHost(group, hostPortPair, true);
}
public static void removeSlaveHost(String group, String hostPortPair, boolean closeGently) throws SQLException {
Collection s = getGroupsMatching(group);
for (ReplicationConnectionGroup cg : s) {
cg.removeSlaveHost(hostPortPair, closeGently);
}
}
public static void promoteSlaveToMaster(String group, String hostPortPair) throws SQLException {
Collection s = getGroupsMatching(group);
for (ReplicationConnectionGroup cg : s) {
cg.promoteSlaveToMaster(hostPortPair);
}
}
public static long getSlavePromotionCount(String group) throws SQLException {
Collection s = getGroupsMatching(group);
long promoted = 0;
for (ReplicationConnectionGroup cg : s) {
long tmp = cg.getNumberOfSlavePromotions();
if (tmp > promoted) {
promoted = tmp;
}
}
return promoted;
}
public static void removeMasterHost(String group, String hostPortPair) throws SQLException {
removeMasterHost(group, hostPortPair, true);
}
public static void removeMasterHost(String group, String hostPortPair, boolean closeGently) throws SQLException {
Collection s = getGroupsMatching(group);
for (ReplicationConnectionGroup cg : s) {
cg.removeMasterHost(hostPortPair, closeGently);
}
}
public static String getRegisteredReplicationConnectionGroups() {
Collection s = getGroupsMatching(null);
StringBuilder sb = new StringBuilder();
String sep = "";
for (ReplicationConnectionGroup cg : s) {
String group = cg.getGroupName();
sb.append(sep);
sb.append(group);
sep = ",";
}
return sb.toString();
}
public static int getNumberOfMasterPromotion(String groupFilter) {
int total = 0;
Collection s = getGroupsMatching(groupFilter);
for (ReplicationConnectionGroup cg : s) {
total += cg.getNumberOfSlavePromotions();
}
return total;
}
public static int getConnectionCountWithHostAsSlave(String groupFilter, String hostPortPair) {
int total = 0;
Collection s = getGroupsMatching(groupFilter);
for (ReplicationConnectionGroup cg : s) {
total += cg.getConnectionCountWithHostAsSlave(hostPortPair);
}
return total;
}
public static int getConnectionCountWithHostAsMaster(String groupFilter, String hostPortPair) {
int total = 0;
Collection s = getGroupsMatching(groupFilter);
for (ReplicationConnectionGroup cg : s) {
total += cg.getConnectionCountWithHostAsMaster(hostPortPair);
}
return total;
}
public static Collection getSlaveHosts(String groupFilter) {
Collection s = getGroupsMatching(groupFilter);
Collection hosts = new ArrayList<>();
for (ReplicationConnectionGroup cg : s) {
hosts.addAll(cg.getSlaveHosts());
}
return hosts;
}
public static Collection getMasterHosts(String groupFilter) {
Collection s = getGroupsMatching(groupFilter);
Collection hosts = new ArrayList<>();
for (ReplicationConnectionGroup cg : s) {
hosts.addAll(cg.getMasterHosts());
}
return hosts;
}
public static long getTotalConnectionCount(String group) {
long connections = 0;
Collection s = getGroupsMatching(group);
for (ReplicationConnectionGroup cg : s) {
connections += cg.getTotalConnectionCount();
}
return connections;
}
public static long getActiveConnectionCount(String group) {
long connections = 0;
Collection s = getGroupsMatching(group);
for (ReplicationConnectionGroup cg : s) {
connections += cg.getActiveConnectionCount();
}
return connections;
}
}
