/**
* 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;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.apache.ambari.server.controller.internal.BaseClusterRequest;
import org.apache.ambari.server.state.Host;
/**
* Persistence abstraction.
*/
public interface PersistedState {
/**
* Persist a topology request.
*
* @param topologyRequest topology request to persist
*
* @return a persisted topology request which is a wrapper around a TopologyRequest which
* adds an id that can be used to refer to the persisted entity
*/
PersistedTopologyRequest persistTopologyRequest(BaseClusterRequest topologyRequest);
/**
* Persist a logical request.
*
* @param logicalRequest logical request to persist
* @param topologyRequestId the id of the associated topology request
*/
void persistLogicalRequest(LogicalRequest logicalRequest, long topologyRequestId);
/**
* Register a physical task with a logical task.
*
* @param logicalTaskId logical task id
* @param physicalTaskId physical task id
*/
void registerPhysicalTask(long logicalTaskId, long physicalTaskId);
/**
* Registeer a host with a host request.
*
* @param hostRequestId host request id
* @param hostName name of host being registered
*/
void registerHostName(long hostRequestId, String hostName);
/**
* Get all persisted requests. This is used to replay all
* requests upon ambari startup.
*
* @return map of cluster topology to list of logical requests
*/
Map<ClusterTopology, List<LogicalRequest>> getAllRequests();
void registerInTopologyHostInfo(Host host);
/**
* Returns provision request for a cluster
* @param clusterId
* @return
*/
LogicalRequest getProvisionRequest(long clusterId);
/**
*
* @param hostRequests
*/
void removeHostRequests(Collection<HostRequest> hostRequests);
}