/**
* 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.view.cluster;
import java.util.List;
import java.util.Map;
/**
* View associated cluster. A cluster may be associated with a view instance so that the view instance may pull
* configuration values from the cluster.
*/
public interface Cluster {
/**
* Get the cluster name.
*
* @return the cluster name
*/
public String getName();
/**
* Get a value for the given configuration type and key.
*
* @param type the configuration id (i.e. hdfs-site)
* @param key the configuration key (i.e. dfs.namenode.http-address)
*
* @return the configuration value
*/
public String getConfigurationValue(String type, String key);
/**
* @param type : the type (site) for which the configurations are required.
* @return : return a map containing all the key values of configurations
*/
public Map<String,String> getConfigByType(String type);
/**
* Get the hosts for service and componet
*
* @param serviceName
* @param componentName
* @return list of hosts
*/
public List<String> getHostsForServiceComponent(String serviceName, String componentName);
}