227 lines
7.5 KiB
Java
227 lines
7.5 KiB
Java
/*
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* Copyright 2022 Mark Nellemann <mark.nellemann@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package biz.nellemann.svci;
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import biz.nellemann.svci.dto.json.EnclosureStat;
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import biz.nellemann.svci.dto.json.NodeStat;
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import biz.nellemann.svci.dto.json.System;
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import biz.nellemann.svci.dto.toml.SvcConfiguration;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.time.Duration;
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import java.time.Instant;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicBoolean;
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import static java.lang.Thread.sleep;
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class VolumeController implements Runnable {
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private final static Logger log = LoggerFactory.getLogger(VolumeController.class);
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private final ObjectMapper objectMapper = new ObjectMapper();
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private final Integer refreshValue;
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private final Integer discoverValue;
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//private final List<ManagedSystem> managedSystems = new ArrayList<>();
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private final RestClient restClient;
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private final InfluxClient influxClient;
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private final AtomicBoolean keepRunning = new AtomicBoolean(true);
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protected Integer responseErrors = 0;
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protected System system;
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VolumeController(SvcConfiguration configuration, InfluxClient influxClient) {
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this.refreshValue = configuration.refresh;
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this.discoverValue = configuration.discover;
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this.influxClient = influxClient;
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restClient = new RestClient(configuration.url, configuration.username, configuration.password, configuration.trust);
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}
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@Override
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public void run() {
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log.trace("run()");
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restClient.login();
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discover();
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do {
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Instant instantStart = Instant.now();
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try {
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refresh();
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} catch (Exception e) {
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log.error("run() - fatal error: {}", e.getMessage());
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keepRunning.set(false);
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throw new RuntimeException(e);
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}
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Instant instantEnd = Instant.now();
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long timeSpend = Duration.between(instantStart, instantEnd).toMillis();
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log.trace("run() - duration millis: " + timeSpend);
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if(timeSpend < (refreshValue * 1000)) {
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try {
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long sleepTime = (refreshValue * 1000) - timeSpend;
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log.trace("run() - sleeping millis: " + sleepTime);
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if(sleepTime > 0) {
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//noinspection BusyWait
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sleep(sleepTime);
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}
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} catch (InterruptedException e) {
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log.error("run() - sleep interrupted", e);
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}
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} else {
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log.warn("run() - possible slow response from this HMC");
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}
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} while (keepRunning.get());
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}
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void discover() {
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log.debug("discover()");
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influxClient.write(getSystem(), Instant.now(),"system");
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}
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void refresh() {
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log.debug("refresh()");
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influxClient.write(getNodeStats(), Instant.now(),"node_stats");
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influxClient.write(getEnclosureStats(), Instant.now(),"enclosure_stats");
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}
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List<Measurement> getSystem() {
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List<Measurement> measurementList = new ArrayList<>();
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try {
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String response = restClient.postRequest("/rest/v1/lssystem");
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// Do not try to parse empty response
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if(response == null || response.length() <= 1) {
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log.warn("getSystem() - no data.");
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return measurementList;
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}
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// Save for use elsewhere when referring to system name
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system = objectMapper.readValue(response, System.class);
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HashMap<String, String> tagsMap = new HashMap<>();
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HashMap<String, Object> fieldsMap = new HashMap<>();
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tagsMap.put("name", system.name);
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fieldsMap.put("location", system.location);
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fieldsMap.put("code_level", system.codeLevel);
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fieldsMap.put("product_name", system.productName);
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log.trace("getNodeStats() - fields: " + fieldsMap);
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measurementList.add(new Measurement(tagsMap, fieldsMap));
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} catch (IOException e) {
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log.error("getSystem() - error 2: {}", e.getMessage());
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}
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return measurementList;
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}
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List<Measurement> getNodeStats() {
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List<Measurement> measurementList = new ArrayList<>();
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try {
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String response = restClient.postRequest("/rest/v1/lsnodestats");
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// Do not try to parse empty response
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if(response == null || response.length() <= 1) {
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log.warn("getNodeStats() - no data.");
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return measurementList;
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}
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List<NodeStat> pojo = Arrays.asList(objectMapper.readValue(response, NodeStat[].class));
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pojo.forEach((stat) -> {
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HashMap<String, String> tagsMap = new HashMap<>();
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HashMap<String, Object> fieldsMap = new HashMap<>();
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tagsMap.put("id", stat.nodeId);
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tagsMap.put("name", stat.nodeName);
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tagsMap.put("system", system.name);
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fieldsMap.put(stat.statName, stat.statCurrent);
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log.trace("getNodeStats() - fields: " + fieldsMap);
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measurementList.add(new Measurement(tagsMap, fieldsMap));
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//log.info("{}: {} -> {}", stat.nodeName, stat.statName, stat.statCurrent);
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});
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} catch (IOException e) {
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log.error("getNodeStats() - error 2: {}", e.getMessage());
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}
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return measurementList;
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}
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List<Measurement> getEnclosureStats() {
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List<Measurement> measurementList = new ArrayList<>();
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try {
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String response = restClient.postRequest("/rest/v1/lsenclosurestats");
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// Do not try to parse empty response
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if(response == null || response.length() <= 1) {
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log.warn("getEnclosureStats() - no data.");
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return measurementList;
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}
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List<EnclosureStat> pojo = Arrays.asList(objectMapper.readValue(response, EnclosureStat[].class));
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pojo.forEach((stat) -> {
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HashMap<String, String> tagsMap = new HashMap<>();
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HashMap<String, Object> fieldsMap = new HashMap<>();
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tagsMap.put("id", stat.enclosureId);
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tagsMap.put("system", system.name);
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fieldsMap.put(stat.statName, stat.statCurrent);
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log.trace("getEnclosureStats() - fields: " + fieldsMap);
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measurementList.add(new Measurement(tagsMap, fieldsMap));
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//log.info("{}: {} -> {}", stat.nodeName, stat.statName, stat.statCurrent);
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});
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} catch (IOException e) {
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log.error("getEnclosureStats() - error 2: {}", e.getMessage());
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}
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return measurementList;
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}
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}
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