| /* |
| * Copyright 2016-present 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 com.google.common.collect.BiMap; |
| import com.google.common.collect.EnumHashBiMap; |
| import com.google.common.collect.Lists; |
| import com.google.common.collect.Maps; |
| import com.google.common.collect.Sets; |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.influxdb.InfluxDB; |
| import org.influxdb.InfluxDBFactory; |
| import org.influxdb.dto.Query; |
| import org.influxdb.dto.QueryResult; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.CoreService; |
| import org.slf4j.Logger; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.TimeUnit; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * A Metric retriever implementation for querying metrics from influxDB server. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class DefaultInfluxDbMetricsRetriever implements InfluxDbMetricsRetriever { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final String DEFAULT_PROTOCOL = "http"; |
| private static final String DEFAULT_POLICY = "default"; |
| private static final String COLON_SEPARATOR = ":"; |
| private static final String SLASH_SEPARATOR = "//"; |
| private static final String BRACKET_START = "["; |
| private static final String BRACKET_END = "]"; |
| private static final String METRIC_DELIMITER = "."; |
| private static final int NUB_OF_DELIMITER = 3; |
| |
| private static final BiMap<TimeUnit, String> TIME_UNIT_MAP = |
| EnumHashBiMap.create(TimeUnit.class); |
| |
| static { |
| // key is TimeUnit enumeration type |
| // value is influx database time unit keyword |
| TIME_UNIT_MAP.put(TimeUnit.DAYS, "d"); |
| TIME_UNIT_MAP.put(TimeUnit.HOURS, "h"); |
| TIME_UNIT_MAP.put(TimeUnit.MINUTES, "m"); |
| TIME_UNIT_MAP.put(TimeUnit.SECONDS, "s"); |
| } |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| protected String database; |
| |
| InfluxDB influxDB; |
| |
| @Activate |
| public void activate() { |
| coreService.registerApplication("org.onosproject.influxdbmetrics"); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void config(String address, int port, String database, String username, String password) { |
| StringBuilder url = new StringBuilder(); |
| url.append(DEFAULT_PROTOCOL); |
| url.append(COLON_SEPARATOR + SLASH_SEPARATOR); |
| url.append(address); |
| url.append(COLON_SEPARATOR); |
| url.append(port); |
| |
| this.influxDB = InfluxDBFactory.connect(url.toString(), username, password); |
| this.database = database; |
| } |
| |
| @Override |
| public Map<NodeId, Map<String, List<InfluxMetric>>> allMetrics(int period, |
| TimeUnit unit) { |
| Map<NodeId, Set<String>> nameMap = allMetricNames(); |
| Map<NodeId, Map<String, List<InfluxMetric>>> metricsMap = Maps.newHashMap(); |
| |
| nameMap.forEach((nodeId, metricNames) -> |
| metricsMap.putIfAbsent(nodeId, metricsByNodeId(nodeId, period, unit)) |
| ); |
| |
| return metricsMap; |
| } |
| |
| @Override |
| public Map<String, List<InfluxMetric>> metricsByNodeId(NodeId nodeId, int period, |
| TimeUnit unit) { |
| Map<NodeId, Set<String>> nameMap = allMetricNames(); |
| Map<String, List<InfluxMetric>> map = Maps.newHashMap(); |
| |
| nameMap.get(nodeId).forEach(metricName -> { |
| List<InfluxMetric> value = metric(nodeId, metricName, period, unit); |
| if (value != null) { |
| map.putIfAbsent(metricName, value); |
| } |
| }); |
| |
| return map; |
| } |
| |
| @Override |
| public Map<NodeId, List<InfluxMetric>> metricsByName(String metricName, int period, |
| TimeUnit unit) { |
| Map<NodeId, List<InfluxMetric>> map = Maps.newHashMap(); |
| List<InfluxMetric> metrics = Lists.newArrayList(); |
| String queryPrefix = new StringBuilder() |
| .append("SELECT m1_rate FROM") |
| .append(database) |
| .append(METRIC_DELIMITER) |
| .append(quote(DEFAULT_POLICY)) |
| .append(METRIC_DELIMITER) |
| .toString(); |
| String querySuffix = new StringBuilder() |
| .append(" WHERE time > now() - ") |
| .append(period) |
| .append(unitString(unit)) |
| .toString(); |
| |
| allMetricNames().keySet().forEach(nodeId -> { |
| String queryString = new StringBuilder() |
| .append(queryPrefix) |
| .append(quote(nodeId + METRIC_DELIMITER + metricName)) |
| .append(querySuffix) |
| .toString(); |
| Query query = new Query(queryString, database); |
| List<QueryResult.Result> results = influxDB.query(query).getResults(); |
| |
| if (results != null && results.get(0) != null |
| && results.get(0).getSeries() != null) { |
| |
| results.get(0).getSeries().get(0).getValues().forEach(value -> |
| metrics.add(new DefaultInfluxMetric.Builder() |
| .time((String) value.get(0)) |
| .oneMinRate((Double) value.get(1)) |
| .build())); |
| map.putIfAbsent(nodeId, metrics); |
| } |
| }); |
| |
| return map; |
| } |
| |
| @Override |
| public List<InfluxMetric> metric(NodeId nodeId, String metricName, |
| int period, TimeUnit unit) { |
| List<InfluxMetric> metrics = Lists.newArrayList(); |
| String queryString = new StringBuilder() |
| .append("SELECT m1_rate FROM ") |
| .append(database) |
| .append(METRIC_DELIMITER) |
| .append(quote(DEFAULT_POLICY)) |
| .append(METRIC_DELIMITER) |
| .append(quote(nodeId + METRIC_DELIMITER + metricName)) |
| .append(" WHERE time > now() - ") |
| .append(period) |
| .append(unitString(unit)) |
| .toString(); |
| |
| Query query = new Query(queryString, database); |
| List<QueryResult.Result> results = influxDB.query(query).getResults(); |
| |
| if (results != null && results.get(0) != null |
| && results.get(0).getSeries() != null) { |
| |
| results.get(0).getSeries().get(0).getValues().forEach(value -> |
| metrics.add(new DefaultInfluxMetric.Builder() |
| .time((String) value.get(0)) |
| .oneMinRate((Double) value.get(1)) |
| .build())); |
| return metrics; |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public Map<NodeId, Map<String, InfluxMetric>> allMetrics() { |
| Map<NodeId, Set<String>> nameMap = allMetricNames(); |
| Map<NodeId, Map<String, InfluxMetric>> metricsMap = Maps.newHashMap(); |
| |
| nameMap.forEach((nodeId, metricNames) -> |
| metricsMap.putIfAbsent(nodeId, metricsByNodeId(nodeId)) |
| ); |
| |
| return metricsMap; |
| } |
| |
| @Override |
| public Map<String, InfluxMetric> metricsByNodeId(NodeId nodeId) { |
| Map<NodeId, Set<String>> nameMap = allMetricNames(); |
| Map<String, InfluxMetric> map = Maps.newHashMap(); |
| |
| nameMap.get(nodeId).forEach(metricName -> { |
| InfluxMetric value = metric(nodeId, metricName); |
| if (value != null) { |
| map.putIfAbsent(metricName, value); |
| } |
| }); |
| |
| return map; |
| } |
| |
| @Override |
| public Map<NodeId, InfluxMetric> metricsByName(String metricName) { |
| Map<NodeId, InfluxMetric> map = Maps.newHashMap(); |
| String queryPrefix = new StringBuilder() |
| .append("SELECT m1_rate FROM") |
| .append(database) |
| .append(METRIC_DELIMITER) |
| .append(quote(DEFAULT_POLICY)) |
| .append(METRIC_DELIMITER) |
| .toString(); |
| String querySuffix = new StringBuilder() |
| .append(" LIMIT 1") |
| .toString(); |
| |
| allMetricNames().keySet().forEach(nodeId -> { |
| String queryString = new StringBuilder() |
| .append(queryPrefix) |
| .append(quote(nodeId + METRIC_DELIMITER + metricName)) |
| .append(querySuffix) |
| .toString(); |
| Query query = new Query(queryString, database); |
| List<QueryResult.Result> results = influxDB.query(query).getResults(); |
| |
| if (results != null && results.get(0) != null |
| && results.get(0).getSeries() != null) { |
| InfluxMetric metric = new DefaultInfluxMetric.Builder() |
| .time((String) results.get(0).getSeries().get(0).getValues().get(0).get(0)) |
| .oneMinRate((Double) results.get(0).getSeries().get(0) |
| .getValues().get(0).get(1)).build(); |
| map.putIfAbsent(nodeId, metric); |
| } |
| }); |
| |
| return map; |
| } |
| |
| @Override |
| public InfluxMetric metric(NodeId nodeId, String metricName) { |
| String queryString = new StringBuilder() |
| .append("SELECT m1_rate FROM ") |
| .append(database) |
| .append(METRIC_DELIMITER) |
| .append(quote(DEFAULT_POLICY)) |
| .append(METRIC_DELIMITER) |
| .append(quote(nodeId + METRIC_DELIMITER + metricName)) |
| .append(" LIMIT 1") |
| .toString(); |
| |
| Query query = new Query(queryString, database); |
| List<QueryResult.Result> results = influxDB.query(query).getResults(); |
| |
| if (results != null && results.get(0) != null |
| && results.get(0).getSeries() != null) { |
| return new DefaultInfluxMetric.Builder() |
| .time((String) results.get(0).getSeries().get(0).getValues().get(0).get(0)) |
| .oneMinRate((Double) results.get(0).getSeries().get(0) |
| .getValues().get(0).get(1)).build(); |
| } |
| |
| return null; |
| } |
| |
| private String unitString(TimeUnit unit) { |
| return TIME_UNIT_MAP.get(unit) == null ? "h" : TIME_UNIT_MAP.get(unit); |
| } |
| |
| private String quote(String str) { |
| return "\"" + str + "\""; |
| } |
| |
| /** |
| * Returns all metric names that bound with node identification. |
| * |
| * @return all metric names |
| */ |
| protected Map<NodeId, Set<String>> allMetricNames() { |
| Map<NodeId, Set<String>> metricNameMap = Maps.newHashMap(); |
| Query query = new Query("SHOW MEASUREMENTS", database); |
| List<QueryResult.Result> results = influxDB.query(query).getResults(); |
| List<List<Object>> rawMetricNames = results.get(0).getSeries().get(0).getValues(); |
| |
| rawMetricNames.forEach(rawMetricName -> { |
| String nodeIdStr = getNodeId(strip(rawMetricName.toString())); |
| |
| if (nodeIdStr != null) { |
| NodeId nodeId = NodeId.nodeId(nodeIdStr); |
| String metricName = getMetricName(strip(rawMetricName.toString())); |
| |
| if (!metricNameMap.containsKey(nodeId)) { |
| metricNameMap.putIfAbsent(nodeId, Sets.newHashSet()); |
| } |
| |
| if (metricName != null) { |
| metricNameMap.get(nodeId).add(metricName); |
| } |
| } |
| }); |
| |
| return metricNameMap; |
| } |
| |
| /** |
| * Strips special bracket from the full name. |
| * |
| * @param fullName full name |
| * @return bracket stripped string |
| */ |
| private String strip(String fullName) { |
| return StringUtils.strip(StringUtils.strip(fullName, BRACKET_START), BRACKET_END); |
| } |
| |
| /** |
| * Returns metric name from full name. |
| * The elements in full name is split by using '.'; |
| * We assume that the metric name always comes after the last three '.' |
| * |
| * @param fullName full name |
| * @return metric name |
| */ |
| private String getMetricName(String fullName) { |
| int index = StringUtils.lastOrdinalIndexOf(fullName, |
| METRIC_DELIMITER, NUB_OF_DELIMITER); |
| if (index != -1) { |
| return StringUtils.substring(fullName, index + 1); |
| } else { |
| log.warn("Database {} contains malformed metric name.", database); |
| return null; |
| } |
| } |
| |
| /** |
| * Returns node id from full name. |
| * The elements in full name is split by using '.'; |
| * We assume that the node id always comes before the last three '.' |
| * |
| * @param fullName full name |
| * @return node id |
| */ |
| private String getNodeId(String fullName) { |
| int index = StringUtils.lastOrdinalIndexOf(fullName, |
| METRIC_DELIMITER, NUB_OF_DELIMITER); |
| if (index != -1) { |
| return StringUtils.substring(fullName, 0, index); |
| } else { |
| log.warn("Database {} contains malformed node id.", database); |
| return null; |
| } |
| } |
| } |