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Apache Solr (module: core)
/*
* 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.solr.cluster.placement;
import java.util.Optional;
import org.apache.solr.cluster.Node;
public interface AttributeValues {
/**
* For the given node: system property value (system properties are passed to Java using {@code
* -Dname=value}
*/
Optional getSystemProperty(Node node, String name);
/** For the given node: metric identified by an instance of {@link NodeMetric} */
Optional getNodeMetric(Node node, NodeMetric metric);
/** Get collection metrics. */
Optional getCollectionMetrics(String collectionName);
}