/*
* 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
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* KIND, either express or implied. See the License for the
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package org.apache.cloudstack.storage.datastore.provider;
import javax.inject.Inject;
import org.apache.cloudstack.engine.subsystem.api.storage.DataStoreManager;
import org.apache.cloudstack.engine.subsystem.api.storage.HypervisorHostListener;
import org.apache.cloudstack.storage.datastore.db.PrimaryDataStoreDao;
import org.apache.log4j.Logger;
import com.cloud.agent.AgentManager;
import com.cloud.agent.api.Answer;
import com.cloud.agent.api.ModifyStoragePoolAnswer;
import com.cloud.agent.api.ModifyStoragePoolCommand;
import com.cloud.alert.AlertManager;
import com.cloud.storage.DataStoreRole;
import com.cloud.storage.StoragePool;
import com.cloud.storage.StoragePoolHostVO;
import com.cloud.storage.dao.StoragePoolHostDao;
import com.cloud.utils.exception.CloudRuntimeException;
public class ElastistorHostListener implements HypervisorHostListener {
private static final Logger s_logger = Logger.getLogger(DefaultHostListener.class);
@Inject
AgentManager agentMgr;
@Inject
DataStoreManager dataStoreMgr;
@Inject
AlertManager alertMgr;
@Inject
StoragePoolHostDao storagePoolHostDao;
@Inject
PrimaryDataStoreDao primaryStoreDao;
@Override
public boolean hostConnect(long hostId, long poolId) {
StoragePool pool = (StoragePool) this.dataStoreMgr.getDataStore(poolId, DataStoreRole.Primary);
ModifyStoragePoolCommand cmd = new ModifyStoragePoolCommand(true, pool);
final Answer answer = agentMgr.easySend(hostId, cmd);
if (answer == null) {
throw new CloudRuntimeException("Unable to get an answer to the modify storage pool command" + pool.getId());
}
if (!answer.getResult()) {
String msg = "Unable to attach storage pool" + poolId + " to the host" + hostId;
alertMgr.sendAlert(AlertManager.AlertType.ALERT_TYPE_HOST,pool.getDataCenterId(), pool.getPodId(), msg, msg);
throw new CloudRuntimeException("Unable establish connection from storage head to storage pool " + pool.getId() + " due to " + answer.getDetails() + pool.getId());
}
assert (answer instanceof ModifyStoragePoolAnswer) : "Well, now why won't you actually return the ModifyStoragePoolAnswer when it's ModifyStoragePoolCommand? Pool=" + pool.getId() + "Host=" + hostId;
s_logger.info("Connection established between " + pool + " host + " + hostId);
return true;
}
@Override
public boolean hostDisconnected(long hostId, long poolId) {
StoragePoolHostVO storagePoolHost = storagePoolHostDao.findByPoolHost(
poolId, hostId);
if (storagePoolHost != null) {
storagePoolHostDao.deleteStoragePoolHostDetails(hostId, poolId);
}
return false;
}
}