| // 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 com.cloud.ha; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.inject.Inject; |
| import javax.naming.ConfigurationException; |
| |
| import org.apache.log4j.Logger; |
| |
| import com.cloud.agent.AgentManager; |
| import com.cloud.agent.api.Answer; |
| import com.cloud.agent.api.PingTestCommand; |
| import com.cloud.exception.AgentUnavailableException; |
| import com.cloud.exception.OperationTimedoutException; |
| import com.cloud.host.Host.Type; |
| import com.cloud.host.HostVO; |
| import com.cloud.host.Status; |
| import com.cloud.host.dao.HostDao; |
| import com.cloud.resource.ResourceManager; |
| import com.cloud.utils.component.AdapterBase; |
| import com.cloud.utils.db.QueryBuilder; |
| import com.cloud.utils.db.SearchCriteria.Op; |
| |
| public abstract class AbstractInvestigatorImpl extends AdapterBase implements Investigator { |
| private static final Logger s_logger = Logger.getLogger(AbstractInvestigatorImpl.class); |
| |
| @Inject |
| private final HostDao _hostDao = null; |
| @Inject |
| private final AgentManager _agentMgr = null; |
| @Inject |
| private final ResourceManager _resourceMgr = null; |
| |
| @Override |
| public boolean configure(String name, Map<String, Object> params) throws ConfigurationException { |
| |
| return true; |
| } |
| |
| @Override |
| public boolean start() { |
| return true; |
| } |
| |
| @Override |
| public boolean stop() { |
| return true; |
| } |
| |
| // Host.status is up and Host.type is routing |
| protected List<Long> findHostByPod(long podId, Long excludeHostId) { |
| QueryBuilder<HostVO> sc = QueryBuilder.create(HostVO.class); |
| sc.and(sc.entity().getType(), Op.EQ, Type.Routing); |
| sc.and(sc.entity().getPodId(), Op.EQ, podId); |
| sc.and(sc.entity().getStatus(), Op.EQ, Status.Up); |
| List<HostVO> hosts = sc.list(); |
| |
| List<Long> hostIds = new ArrayList<Long>(hosts.size()); |
| for (HostVO h : hosts) { |
| hostIds.add(h.getId()); |
| } |
| |
| if (excludeHostId != null) { |
| hostIds.remove(excludeHostId); |
| } |
| |
| return hostIds; |
| } |
| |
| // Method only returns Status.Up, Status.Down and Status.Unknown |
| protected Status testIpAddress(Long hostId, String testHostIp) { |
| try { |
| Answer pingTestAnswer = _agentMgr.send(hostId, new PingTestCommand(testHostIp)); |
| if (pingTestAnswer == null) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("host (" + testHostIp + ") returns Unknown (null) answer"); |
| } |
| return Status.Unknown; |
| } |
| |
| if (pingTestAnswer.getResult()) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("host (" + testHostIp + ") has been successfully pinged, returning that host is up"); |
| } |
| // computing host is available, but could not reach agent, return false |
| return Status.Up; |
| } else { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("host (" + testHostIp + ") cannot be pinged, returning Unknown (I don't know) state"); |
| } |
| return Status.Unknown; |
| } |
| } catch (AgentUnavailableException e) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("host (" + testHostIp + "): " + e.getLocalizedMessage() + ", trapped AgentUnavailableException returning Unknown state"); |
| } |
| return Status.Unknown; |
| } catch (OperationTimedoutException e) { |
| if (s_logger.isDebugEnabled()) { |
| s_logger.debug("host (" + testHostIp + "): " + e.getLocalizedMessage() + ", trapped OperationTimedoutException returning Unknown state"); |
| } |
| return Status.Unknown; |
| } |
| } |
| } |