server/src/com/cloud/cluster/ClusterFenceManagerImpl.java

// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License.  Citrix Systems, Inc.
// reserves all rights not expressly granted by 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.
// 
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.cluster;

import java.util.List;
import java.util.Map;

import javax.ejb.Local;
import javax.naming.ConfigurationException;

import org.apache.log4j.Logger;

import com.cloud.utils.component.Inject;

@Local(value={ClusterFenceManager.class})
public class ClusterFenceManagerImpl implements ClusterFenceManager, ClusterManagerListener {
    private static final Logger s_logger = Logger.getLogger(ClusterFenceManagerImpl.class);
	
	@Inject ClusterManager _clusterMgr;
	private String _name;
	
	@Override
	public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
		_name = name;
		
		_clusterMgr.registerListener(this);
		return true;
	}

	@Override
	public boolean start() {
		return true;
	}

	@Override
	public boolean stop() {
		return true;
	}

	@Override
	public String getName() {
		return _name;
	}

	@Override
	public void onManagementNodeJoined(List<ManagementServerHostVO> nodeList, long selfNodeId) {
	}

	@Override
	public void onManagementNodeLeft(List<ManagementServerHostVO> nodeList, long selfNodeId) {
	}

	@Override
	public void onManagementNodeIsolated() {
		s_logger.error("Received node isolation notification, will perform self-fencing and shut myself down");
		System.exit(SELF_FENCING_EXIT_CODE);
	}
}