/*
* 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.topology.tasks;
import org.apache.ambari.server.security.authorization.internal.InternalAuthenticationToken;
import org.apache.ambari.server.topology.ClusterTopology;
import org.apache.ambari.server.topology.HostRequest;
import org.apache.ambari.server.topology.TopologyManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
public abstract class TopologyHostTask implements TopologyTask {
private static Logger LOG = LoggerFactory.getLogger(TopologyHostTask.class);
ClusterTopology clusterTopology;
HostRequest hostRequest;
boolean skipFailure;
public TopologyHostTask(ClusterTopology topology, HostRequest hostRequest) {
this.clusterTopology = topology;
this.hostRequest = hostRequest;
}
/**
* Run with an InternalAuthenticationToken as when running these tasks we might not have any active security context.
*/
public void run() {
Authentication savedAuthContext = SecurityContextHolder.getContext().getAuthentication();
try {
InternalAuthenticationToken authenticationToken = new InternalAuthenticationToken(TopologyManager.INTERNAL_AUTH_TOKEN);
authenticationToken.setAuthenticated(true);
SecurityContextHolder.getContext().setAuthentication(authenticationToken);
runTask();
} finally {
SecurityContextHolder.getContext().setAuthentication(savedAuthContext);
}
}
public abstract void runTask();
}