/*
* 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.ambari.server.checks;
import java.util.Map;
import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.controller.PrereqCheckRequest;
import org.apache.ambari.server.state.Cluster;
import org.apache.ambari.server.state.MaintenanceState;
import org.apache.ambari.server.state.Service;
import org.apache.ambari.server.state.stack.PrereqCheckStatus;
import org.apache.ambari.server.state.stack.PrerequisiteCheck;
import org.apache.ambari.server.state.stack.upgrade.UpgradeType;
import com.google.inject.Singleton;
/**
* Checks to ensure that services are not in maintenance mode.
*/
@Singleton
@UpgradeCheck(
group = UpgradeCheckGroup.MAINTENANCE_MODE,
order = 6.0f,
required = { UpgradeType.ROLLING, UpgradeType.NON_ROLLING, UpgradeType.HOST_ORDERED })
public class ServicesMaintenanceModeCheck extends AbstractCheckDescriptor {
/**
* Constructor.
*/
public ServicesMaintenanceModeCheck() {
super(CheckDescription.SERVICES_MAINTENANCE_MODE);
}
@Override
public void perform(PrerequisiteCheck prerequisiteCheck, PrereqCheckRequest request) throws AmbariException {
final String clusterName = request.getClusterName();
final Cluster cluster = clustersProvider.get().getCluster(clusterName);
for (Map.Entry<String, Service> serviceEntry : cluster.getServices().entrySet()) {
final Service service = serviceEntry.getValue();
if (!service.isClientOnlyService() && service.getMaintenanceState() == MaintenanceState.ON) {
prerequisiteCheck.getFailedOn().add(service.getName());
}
}
if (!prerequisiteCheck.getFailedOn().isEmpty()) {
prerequisiteCheck.setStatus(PrereqCheckStatus.FAIL);
prerequisiteCheck.setFailReason(getFailReason(prerequisiteCheck, request));
}
}
}