2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.openecomp.sdc.healing.impl;
24 import org.openecomp.core.utilities.CommonMethods;
25 import org.openecomp.core.utilities.file.FileUtils;
26 import org.openecomp.core.utilities.json.JsonUtil;
27 import org.openecomp.sdc.common.errors.CoreException;
28 import org.openecomp.sdc.common.errors.ErrorCategory;
29 import org.openecomp.sdc.common.errors.ErrorCode;
30 import org.openecomp.sdc.common.errors.Messages;
31 import org.openecomp.sdc.common.session.SessionContextProviderFactory;
32 import org.openecomp.sdc.datatypes.model.ItemType;
33 import org.openecomp.sdc.healing.api.HealingManager;
34 import org.openecomp.sdc.healing.dao.HealingDao;
35 import org.openecomp.sdc.healing.interfaces.Healer;
36 import org.openecomp.sdc.healing.types.HealerType;
37 import org.openecomp.sdc.versioning.VersioningManager;
38 import org.openecomp.sdc.versioning.dao.types.Version;
39 import org.openecomp.sdc.versioning.dao.types.VersionStatus;
40 import org.openecomp.sdc.versioning.types.VersionCreationMethod;
43 import java.util.stream.Collectors;
44 import java.util.stream.Stream;
46 public class HealingManagerImpl implements HealingManager {
48 private static final String HEALERS_BY_ENTITY_TYPE_FILE = "entityHealingConfiguration.json";
49 private static final String HEALING_USER_SUFFIX = "_healer";
50 private static final String PUBLIC_USER = "public";
52 private HealingDao healingDao;
53 private VersioningManager versioningManager;
55 public HealingManagerImpl(VersioningManager versioningManager, HealingDao healingDao) {
56 this.versioningManager = versioningManager;
57 this.healingDao = healingDao;
61 public Optional<Version> healItemVersion(final String itemId, final Version version,
62 final ItemType itemType, final boolean force) {
63 String user = getUser();
64 populateVersionInfo(itemId, version);
66 if (!isHealingNeeded(itemId, version, force, user)) {
67 return Optional.empty();
70 Map<String, Collection<String>> healersByType = getItemHealers(itemType);
71 List<String> failureMessages = new LinkedList<>();
72 List<Healer> structureHealersToRun =
73 getHealersToRun(healersByType.get(HealerType.structure.name()), itemId, version,
75 List<Healer> dataHealersToRun =
76 getHealersToRun(healersByType.get(HealerType.data.name()), itemId, version,
79 if (structureHealersToRun.isEmpty() && dataHealersToRun.isEmpty()) {
80 markAsHealed(itemId, version.getId(), user);
81 markAsHealed(itemId, version.getId(), PUBLIC_USER);
82 return Optional.empty();
85 Optional<Version> healVersion = getHealVersion(itemId, version);
86 if (!healVersion.isPresent()) {
87 // do NOT turn off flag here (in thought of saving version calculate performance next
88 // time) because maybe next time the next version will be available (due to deletion of
90 return Optional.empty();
93 failureMessages.addAll(
94 doHeal(itemId, healVersion.get(), version, structureHealersToRun, dataHealersToRun, user,
96 handleFailures(failureMessages);
101 private void populateVersionInfo(String itemId, Version version) {
102 if (version.getStatus() != null) {
106 Version retrievedVersion = versioningManager.get(itemId, version);
107 version.setStatus(retrievedVersion.getStatus());
108 version.setBaseId(retrievedVersion.getBaseId());
111 private boolean isHealingNeeded(String itemId, Version version, boolean force, String user) {
112 return force || isHealingFlagOn(itemId, version.getId(), user)
113 .orElse(isHealingFlagOn(itemId, version.getId(), PUBLIC_USER)
114 .orElse(version.getStatus() == VersionStatus.Draft && version.getBaseId() != null &&
115 isHealingFlagOn(itemId, version.getBaseId(), user)
116 .orElse(isHealingFlagOn(itemId, version.getBaseId(), PUBLIC_USER)
120 private Optional<Version> getHealVersion(String itemId, Version version) {
121 return version.getStatus() == VersionStatus.Certified
122 ? createNewVersion(itemId, version.getId())
123 : Optional.of(version);
126 private Optional<Version> createNewVersion(String itemId, String versionId) {
127 Version newVersion = new Version();
128 newVersion.setBaseId(versionId);
129 newVersion.setDescription("Version is created by healing process");
131 return Optional.of(versioningManager.create(itemId, newVersion, VersionCreationMethod.major));
132 } catch (Exception e) {
133 return Optional.empty();
137 private List<String> doHeal(String itemId, Version version, Version origVersion,
138 List<Healer> structureHealersToRun,
139 List<Healer> dataHealersToRun, String user,
141 boolean publicFlagOn = isHealingFlagOn(itemId, origVersion.getId(), PUBLIC_USER)
142 .orElse(origVersion.getBaseId() != null &&
143 isHealingFlagOn(itemId, origVersion.getBaseId(), PUBLIC_USER).orElse(false));
145 List<String> failureMessages =
146 force || origVersion.getStatus() == VersionStatus.Certified || publicFlagOn
147 ? healPublic(itemId, version, origVersion, structureHealersToRun, dataHealersToRun,
149 : new LinkedList<>();
151 failureMessages.addAll(
152 healPrivate(itemId, version, origVersion, structureHealersToRun, dataHealersToRun, user));
154 return failureMessages;
157 private List<String> healPrivate(String itemId, Version version, Version origVersion,
158 List<Healer> structureHealersToRun,
159 List<Healer> dataHealersToRun, String user) {
160 List<String> failureMessages;
161 if (origVersion.getStatus() == VersionStatus.Certified) {
162 failureMessages = executeHealers(itemId, version,
163 Stream.concat(structureHealersToRun.stream(), dataHealersToRun.stream())
164 .collect(Collectors.toList()));
166 if (structureHealersToRun.isEmpty()) {
167 failureMessages = executeHealers(itemId, version, dataHealersToRun);
169 versioningManager.forceSync(itemId, version);
170 failureMessages = new LinkedList<>();
173 markAsHealed(itemId, origVersion.getId(), user);
174 return failureMessages;
177 private List<String> healPublic(String itemId, Version version, Version origVersion,
178 List<Healer> structureHealersToRun,
179 List<Healer> dataHealersToRun, String user) {
180 List<String> failureMessages = origVersion.getStatus() == VersionStatus.Certified
182 : healPublic(itemId, version,
183 Stream.concat(structureHealersToRun.stream(), dataHealersToRun.stream())
184 .collect(Collectors.toList()), user);
186 markAsHealed(itemId, origVersion.getId(), PUBLIC_USER);
187 return failureMessages;
190 private List<String> healPublic(String itemId, Version version, List<Healer> healers,
192 String tenant = SessionContextProviderFactory.getInstance().createInterface().get().getTenant();
193 SessionContextProviderFactory.getInstance().createInterface()
194 .create(user + HEALING_USER_SUFFIX, tenant);
196 versioningManager.forceSync(itemId, version);
198 List<String> failureMessages = executeHealers(itemId, version, healers);
199 Version publicVersion = versioningManager.get(itemId, version);
201 if (Objects.nonNull(publicVersion.getState()) && publicVersion.getState().isDirty()) {
202 versioningManager.publish(itemId, version, "Healing vsp");
205 SessionContextProviderFactory.getInstance().createInterface().create(user, tenant);
206 return failureMessages;
209 private List<String> executeHealers(String itemId, Version version, List<Healer> healers) {
210 List<String> failureMessages = new LinkedList<>();
211 for (Healer healer : healers) {
213 healer.heal(itemId, version);
214 } catch (Exception e) {
216 String.format("Failure in healer %s: %s", healer.getClass().getName(), e.getMessage()));
220 return failureMessages;
223 private Optional<Boolean> isHealingFlagOn(String itemId, String version, String user) {
224 return healingDao.getItemHealingFlag(user, itemId, version);
227 private void markAsHealed(String itemId, String versionId, String user) {
228 healingDao.setItemHealingFlag(false, user, itemId, versionId);
231 private void handleFailures(List<String> failureMessages) {
232 if (!failureMessages.isEmpty()) {
233 throw new CoreException(new ErrorCode.ErrorCodeBuilder()
234 .withCategory(ErrorCategory.APPLICATION)
235 .withMessage(CommonMethods.listToSeparatedString(failureMessages, '\n')).build());
239 private List<Healer> getHealersToRun(Collection<String> healersClassNames, String itemId,
240 Version version, List<String> failureMessages) {
241 return healersClassNames == null
242 ? Collections.emptyList()
243 : healersClassNames.stream()
244 .map(healerClassName -> getHealerInstance(healerClassName, failureMessages))
245 .filter(Optional::isPresent)
247 .filter(healer -> healer.isHealingNeeded(itemId, version))
248 .collect(Collectors.toList());
251 private Optional<Healer> getHealerInstance(String healerClassName, List<String> failureMessages) {
253 return Optional.of((Healer) Class.forName(healerClassName).getConstructor().newInstance());
254 } catch (Exception e) {
256 .add(String.format(Messages.CANT_LOAD_HEALING_CLASS.getErrorMessage(), healerClassName));
257 return Optional.empty();
261 private Map<String, Collection<String>> getItemHealers(ItemType itemType) {
262 Map healingConfig = FileUtils
263 .readViaInputStream(HEALERS_BY_ENTITY_TYPE_FILE,
264 stream -> JsonUtil.json2Object(stream, Map.class));
265 return (Map<String, Collection<String>>) healingConfig
266 .getOrDefault(itemType.name(), Collections.emptyMap());
269 private String getUser() {
270 return SessionContextProviderFactory.getInstance().createInterface().get().getUser()