InfluxDbMetricsRetriever.java
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/*
* Copyright 2016 Open Networking Laboratory
*
* Licensed 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.onosproject.influxdbmetrics;
import org.onosproject.cluster.NodeId;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
/**
* A Metric retriever interface for querying metrics value from influxDB server.
*/
public interface InfluxDbMetricsRetriever {
/**
* Returns last metric values from all nodes.
*
* @return all metrics from all nodes
*/
Map<NodeId, Map<String, InfluxMetric>> allMetrics();
/**
* Returns last metric values from a node.
*
* @param nodeId node identification
* @return all metrics from a given node
*/
Map<String, InfluxMetric> metricsByNodeId(NodeId nodeId);
/**
* Returns a collection of last metric values from all nodes.
*
* @param metricName metric name
* @return a collection of metrics from all nodes
*/
Map<NodeId, InfluxMetric> metricsByName(String metricName);
/**
* Returns a last metric value from a given node.
*
* @param nodeId node identification
* @param metricName metric name
* @return a metric value from a given node
*/
InfluxMetric metric(NodeId nodeId, String metricName);
/**
* Returns metric values of all nodes within a given period of time.
*
* @param period projected period
* @param unit time unit
* @return all metric values of all nodes
*/
Map<NodeId, Map<String, List<InfluxMetric>>> allMetrics(int period, TimeUnit unit);
/**
* Returns metric values of a node within a given period of time.
*
* @param nodeId node identification
* @param period projected period
* @param unit time unit
* @return metric value of a node
*/
Map<String, List<InfluxMetric>> metricsByNodeId(NodeId nodeId, int period, TimeUnit unit);
/**
* Returns a collection of last metric values of all nodes within a given period of time.
*
* @param metricName metric name
* @param period projected period
* @param unit time unit
* @return metric value of all nodes
*/
Map<NodeId, List<InfluxMetric>> metricsByName(String metricName, int period, TimeUnit unit);
/**
* Returns metric value of a given node within a given period of time.
*
* @param nodeId node identification
* @param metricName metric name
* @param period projected period
* @param unit time unit
* @return metric value of a node
*/
List<InfluxMetric> metric(NodeId nodeId, String metricName, int period, TimeUnit unit);
}