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Management support using JMX.
There is a newer version: 3.5.0-beta03
/*
 * Copyright (c) 2002-2019 "Neo4j,"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j Enterprise Edition. The included source
 * code can be redistributed and/or modified under the terms of the
 * GNU AFFERO GENERAL PUBLIC LICENSE Version 3
 * (http://www.fsf.org/licensing/licenses/agpl-3.0.html) with the
 * Commons Clause, as found in the associated LICENSE.txt file.
 *
 * 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 Affero General Public License for more details.
 *
 * Neo4j object code can be licensed independently from the source
 * under separate terms from the AGPL. Inquiries can be directed to:
 * [email protected]
 *
 * More information is also available at:
 * https://neo4j.com/licensing/
 */
package org.neo4j.management;

import java.beans.ConstructorProperties;
import java.io.Serializable;
import java.net.MalformedURLException;
import java.net.URI;
import java.util.Arrays;
import javax.management.remote.JMXServiceURL;

import org.neo4j.helpers.collection.Pair;

/**
 * This class captures the least amount of information available for a cluster member to any
 * cluster participant.
 */
public class ClusterMemberInfo implements Serializable
{
    private static final long serialVersionUID = -514433972115185753L;

    private String instanceId;
    private boolean available;
    private boolean alive;
    private String haRole;
    private String[] uris;
    private String[] roles;

    @ConstructorProperties( { "instanceId", "available", "alive", "haRole", "uris", "roles" } )
    public ClusterMemberInfo( String instanceId, boolean available, boolean alive, String haRole, String[] uris,
                              String[] roles )
    {
        this.instanceId = instanceId;
        this.available = available;
        this.alive = alive;
        this.haRole = haRole;
        this.uris = uris;
        this.roles = roles;
    }

    public String getInstanceId()
    {
        return instanceId;
    }

    public boolean isAvailable()
    {
        return available;
    }

    public boolean isAlive()
    {
        return alive;
    }

    public String getHaRole()
    {
        return haRole;
    }

    public String[] getUris()
    {
        return uris;
    }

    public String[] getRoles()
    {
        return roles;
    }

    @Override
    @SuppressWarnings( "boxing" )
    public String toString()
    {
        return String.format( "Neo4jHaInstance[id=%s,available=%s,haRole=%s,HA URI=%s]", instanceId, available, haRole,
                Arrays.toString(uris) );
    }

    public Pair connect()
    {
        return connect( null, null );
    }

    public Pair connect( String username, String password )
    {
        URI address = null;
        for ( String uri : uris )
        {
            if ( uri.startsWith( "jmx" ) )
            {
//                address = uri;
            }
        }
        if ( address == null )
        {
            throw new IllegalStateException( "The instance does not have a public JMX server." );
        }
        Neo4jManager manager = Neo4jManager.get( url(address), username, password, instanceId );
        return Pair.of( manager, manager.getHighAvailabilityBean() );
    }

    private JMXServiceURL url( URI address )
    {
        try
        {
            return new JMXServiceURL( address.toASCIIString() );
        }
        catch ( MalformedURLException e )
        {
            throw new IllegalStateException( "The instance does not have a valid JMX server URL." );
        }
    }
}