| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with 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. |
| */ |
| package org.apache.geode.distributed.internal.membership.gms.interfaces; |
| |
| |
| import org.apache.geode.distributed.DistributedMember; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| |
| public interface HealthMonitor extends Service { |
| |
| /** |
| * Note that this member has been contacted by the given member |
| * |
| */ |
| void contactedBy(InternalDistributedMember sender); |
| |
| /** |
| * initiate, asynchronously, suspicion that the member is no longer available |
| * |
| */ |
| void suspect(InternalDistributedMember mbr, String reason); |
| |
| /** |
| * Check on the health of the given member, initiating suspicion if it fails. Return true if the |
| * member is found to be available, false if it isn't. |
| * |
| * @param reason the reason this check is being performed |
| * @param initiateRemoval if the member should be removed if it is not available |
| */ |
| boolean checkIfAvailable(InternalDistributedMember mbr, String reason, boolean initiateRemoval); |
| |
| /** |
| * Invoked by the Manager, this notifies the HealthMonitor that a ShutdownMessage has been |
| * received from the given member |
| */ |
| void memberShutdown(DistributedMember mbr, String reason); |
| |
| /** |
| * Returns the failure detection port for this member, or -1 if there is no such port |
| */ |
| int getFailureDetectionPort(); |
| |
| } |