2 * ========================LICENSE_START=================================
3 * Copyright (C) 2021 Nordix Foundation. All rights reserved.
4 * ======================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 * ========================LICENSE_END===================================
19 package org.onap.policy.clamp.controlloop.participant.kubernetes.service;
22 import java.io.FileOutputStream;
23 import java.io.IOException;
24 import java.io.PrintStream;
25 import java.lang.invoke.MethodHandles;
26 import java.nio.file.FileVisitResult;
27 import java.nio.file.Files;
28 import java.nio.file.Path;
29 import java.nio.file.Paths;
30 import java.nio.file.SimpleFileVisitor;
31 import java.nio.file.attribute.BasicFileAttributes;
32 import java.util.ArrayList;
33 import java.util.List;
35 import java.util.concurrent.ConcurrentHashMap;
36 import lombok.AccessLevel;
38 import org.onap.policy.clamp.controlloop.participant.kubernetes.exception.ServiceException;
39 import org.onap.policy.clamp.controlloop.participant.kubernetes.models.ChartInfo;
40 import org.onap.policy.clamp.controlloop.participant.kubernetes.parameters.ParticipantK8sParameters;
41 import org.onap.policy.common.utils.coder.CoderException;
42 import org.onap.policy.common.utils.coder.StandardCoder;
43 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
46 import org.springframework.stereotype.Component;
47 import org.springframework.util.FileSystemUtils;
48 import org.springframework.web.multipart.MultipartFile;
51 public class ChartStore {
52 private static final Logger LOGGER = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
54 private static final StandardCoder STANDARD_CODER = new StandardCoder();
56 private final ParticipantK8sParameters participantK8sParameters;
58 // ChartStore map contains chart name as key & ChartInfo as value.
59 @Getter(AccessLevel.PACKAGE)
60 private Map<String, ChartInfo> localChartMap = new ConcurrentHashMap<>();
65 public ChartStore(ParticipantK8sParameters participantK8sParameters) {
66 this.participantK8sParameters = participantK8sParameters;
67 this.restoreFromLocalFileSystem();
71 * Get local helm chart file.
73 * @param chart ChartInfo
74 * @return the chart file.
76 public File getHelmChartFile(ChartInfo chart) {
77 var appPath = getAppPath(chart.getChartId());
78 return new File(appPath.toFile(), chart.getChartId().getName());
82 * Get the override yaml file.
84 * @param chart ChartInfo
85 * @return the override yaml file
87 public File getOverrideFile(ChartInfo chart) {
88 var appPath = getAppPath(chart.getChartId());
89 return new File(appPath.toFile(), "values.yaml");
94 * Saves the helm chart.
96 * @param chartInfo chartInfo
97 * @param chartFile helm chart file.
98 * @param overrideFile override file.
100 * @throws IOException incase of IO error
101 * @throws ServiceException incase of error.
103 public synchronized ChartInfo saveChart(ChartInfo chartInfo, MultipartFile chartFile, MultipartFile overrideFile)
104 throws IOException, ServiceException {
105 if (localChartMap.containsKey(key(chartInfo))) {
106 throw new ServiceException("Chart already exist");
108 var appPath = getAppPath(chartInfo.getChartId());
109 Files.createDirectories(appPath);
111 chartFile.transferTo(getHelmChartFile(chartInfo));
112 if (overrideFile != null) {
113 overrideFile.transferTo(getOverrideFile(chartInfo));
116 localChartMap.put(key(chartInfo), chartInfo);
117 storeChartInFile(chartInfo);
122 * Get the chart info.
124 * @param name name of the chart
125 * @param version version of the chart
128 public synchronized ChartInfo getChart(String name, String version) {
129 return localChartMap.get(key(name, version));
133 * Get all the charts installed.
135 * @return list of charts.
137 public synchronized List<ChartInfo> getAllCharts() {
138 return new ArrayList<>(localChartMap.values());
144 * @param chart chart info
146 public synchronized void deleteChart(ChartInfo chart) {
147 var appPath = getAppPath(chart.getChartId());
149 FileSystemUtils.deleteRecursively(appPath);
150 } catch (IOException exc) {
151 LOGGER.warn("Could not delete chart from local file system : {}", appPath, exc);
154 localChartMap.remove(key(chart));
158 * Fetch the local chart directory of specific chart.
160 * @param chartId Id of the chart
163 public Path getAppPath(ToscaConceptIdentifier chartId) {
164 return Path.of(participantK8sParameters.getLocalChartDirectory(), chartId.getName(), chartId.getVersion());
167 private void storeChartInFile(ChartInfo chart) {
168 try (var out = new PrintStream(new FileOutputStream(getFile(chart)))) {
169 out.print(STANDARD_CODER.encode(chart));
170 } catch (Exception exc) {
171 LOGGER.warn("Could not store chart: {} {}", chart.getChartId(), exc);
175 private File getFile(ChartInfo chart) {
176 var appPath = getAppPath(chart.getChartId()).toString();
177 return Path.of(appPath, participantK8sParameters.getInfoFileName()).toFile();
180 private synchronized void restoreFromLocalFileSystem() {
182 Path localChartDirectoryPath = Paths.get(participantK8sParameters.getLocalChartDirectory());
183 Files.createDirectories(localChartDirectoryPath);
184 restoreFromLocalFileSystem(localChartDirectoryPath);
185 } catch (Exception ioe) {
186 LOGGER.warn("Could not restore charts from local file system: {}", ioe);
190 private synchronized void restoreFromLocalFileSystem(Path localChartDirectoryPath)
193 Files.walkFileTree(localChartDirectoryPath, new SimpleFileVisitor<Path>() {
195 public FileVisitResult visitFile(Path localChartFile, BasicFileAttributes attrs) throws IOException {
197 // Decode only the json file excluding the helm charts
198 if (localChartFile.endsWith(participantK8sParameters.getInfoFileName())) {
199 ChartInfo chart = STANDARD_CODER.decode(localChartFile.toFile(), ChartInfo.class);
200 localChartMap.put(key(chart), chart);
202 return FileVisitResult.CONTINUE;
203 } catch (CoderException ce) {
204 throw new IOException("Error decoding chart file", ce);
210 private String key(ChartInfo chart) {
211 return key(chart.getChartId().getName(), chart.getChartId().getVersion());
214 private String key(String chartName, String chartVersion) {
215 return chartName + "_" + chartVersion;