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/*
Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; version 2
of the License.
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 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.fabric;
import java.util.Set;
/**
* Server Group - a set of servers responsible for the same set of data
*/
public class ServerGroup {
private String name;
private Set<Server> servers;
public ServerGroup(String name, Set<Server> servers) {
this.name = name;
this.servers = servers;
}
public String getName() {
return this.name;
}
public Set<Server> getServers() {
return this.servers;
}
/**
* Find the master server for this group.
* @return the master server, or null if there's no master for the current group state
*/
public Server getMaster() {
for (Server s : this.servers) {
if (s.getRole() == ServerRole.PRIMARY) {
return s;
}
}
return null;
}
/**
* Lookup a server in this group for the matching host:port string.
* @return the server, if found. null otherwise
*/
public Server getServer(String hostPortString) {
for (Server s : this.servers) {
if (s.getHostPortString().equals(hostPortString)) {
return s;
}
}
return null;
}
@Override
public String toString() {
return String.format("Group[name=%s, servers=%s]", this.name, this.servers);
}
}