2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2019, 2021 AT&T Intellectual Property. All rights reserved.
6 * Modifications Copyright (C) 2020-2021 Nordix Foundation.
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.pap.main.rest;
24 import com.google.gson.annotations.SerializedName;
25 import java.util.ArrayList;
26 import java.util.HashMap;
27 import java.util.HashSet;
28 import java.util.LinkedHashSet;
29 import java.util.List;
32 import java.util.stream.Collectors;
33 import javax.ws.rs.core.Response.Status;
35 import org.onap.policy.common.parameters.BeanValidationResult;
36 import org.onap.policy.common.parameters.BeanValidator;
37 import org.onap.policy.common.parameters.ValidationResult;
38 import org.onap.policy.common.parameters.ValidationStatus;
39 import org.onap.policy.common.parameters.annotations.NotNull;
40 import org.onap.policy.common.parameters.annotations.Pattern;
41 import org.onap.policy.common.parameters.annotations.Valid;
42 import org.onap.policy.common.utils.coder.CoderException;
43 import org.onap.policy.common.utils.coder.StandardCoder;
44 import org.onap.policy.common.utils.services.Registry;
45 import org.onap.policy.models.base.PfKey;
46 import org.onap.policy.models.base.PfModelException;
47 import org.onap.policy.models.base.PfModelRuntimeException;
48 import org.onap.policy.models.pap.concepts.PdpDeployPolicies;
49 import org.onap.policy.models.pdp.concepts.DeploymentGroup;
50 import org.onap.policy.models.pdp.concepts.DeploymentGroups;
51 import org.onap.policy.models.pdp.concepts.DeploymentSubGroup;
52 import org.onap.policy.models.pdp.concepts.Pdp;
53 import org.onap.policy.models.pdp.concepts.PdpGroup;
54 import org.onap.policy.models.pdp.concepts.PdpSubGroup;
55 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
56 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifierOptVersion;
57 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
58 import org.slf4j.Logger;
59 import org.slf4j.LoggerFactory;
62 * Provider for PAP component to deploy PDP groups. The following items must be in the
65 * <li>PDP Modification Lock</li>
66 * <li>PDP Modify Request Map</li>
67 * <li>PAP DAO Factory</li>
70 public class PdpGroupDeployProvider extends ProviderBase {
71 private static final Logger logger = LoggerFactory.getLogger(PdpGroupDeployProvider.class);
72 private static final StandardCoder coder = new StandardCoder();
74 private static final String POLICY_RESULT_NAME = "policy";
78 * Constructs the object.
80 public PdpGroupDeployProvider() {
85 * Updates policies in specific PDP groups.
87 * @param groups PDP group deployments to be updated
88 * @throws PfModelException if an error occurred
90 public void updateGroupPolicies(DeploymentGroups groups) throws PfModelException {
91 ValidationResult result = groups.validatePapRest();
92 if (!result.isValid()) {
93 String msg = result.getResult().trim();
94 throw new PfModelException(Status.BAD_REQUEST, msg);
97 process(groups, this::updateGroups);
101 * Updates policies in specific PDP groups. This is the method that does the actual work.
103 * @param data session data
104 * @param groups PDP group deployments
105 * @throws PfModelException if an error occurred
107 private void updateGroups(SessionData data, DeploymentGroups groups) throws PfModelException {
108 var result = new BeanValidationResult("groups", groups);
110 for (DeploymentGroup group : groups.getGroups()) {
111 PdpGroup dbgroup = data.getGroup(group.getName());
113 if (dbgroup == null) {
114 result.addResult(group.getName(), group, ValidationStatus.INVALID, "unknown group");
117 result.addResult(updateGroup(data, dbgroup, group));
121 if (!result.isValid()) {
122 throw new PfModelException(Status.BAD_REQUEST, result.getResult().trim());
127 * Updates an existing group.
129 * @param data session data
130 * @param dbgroup the group, as it appears within the DB
131 * @param group the group to be added
132 * @return the validation result
133 * @throws PfModelException if an error occurred
135 private ValidationResult updateGroup(SessionData data, PdpGroup dbgroup, DeploymentGroup group)
136 throws PfModelException {
138 var result = new BeanValidationResult(group.getName(), group);
140 boolean updated = updateSubGroups(data, dbgroup, group, result);
142 if (result.isValid() && updated) {
143 data.update(dbgroup);
150 * Adds or updates subgroups within the group.
152 * @param data session data
153 * @param dbgroup the group, as it appears within the DB
154 * @param group the group to be added
155 * @param result the validation result
156 * @return {@code true} if the DB group was modified, {@code false} otherwise
157 * @throws PfModelException if an error occurred
159 private boolean updateSubGroups(SessionData data, PdpGroup dbgroup, DeploymentGroup group,
160 BeanValidationResult result) throws PfModelException {
162 // create a map of existing subgroups
163 Map<String, PdpSubGroup> type2sub = new HashMap<>();
164 dbgroup.getPdpSubgroups().forEach(subgrp -> type2sub.put(subgrp.getPdpType(), subgrp));
168 for (DeploymentSubGroup subgrp : group.getDeploymentSubgroups()) {
169 PdpSubGroup dbsub = type2sub.get(subgrp.getPdpType());
170 var subResult = new BeanValidationResult(subgrp.getPdpType(), subgrp);
173 subResult.addResult(subgrp.getPdpType(), subgrp, ValidationStatus.INVALID, "unknown subgroup");
176 updated = updateSubGroup(data, dbgroup, dbsub, subgrp, subResult) || updated;
179 result.addResult(subResult);
186 * Updates an existing subgroup.
188 * @param data session data
189 * @param dbgroup the group, from the DB, containing the subgroup
190 * @param dbsub the subgroup, from the DB
191 * @param subgrp the subgroup to be updated, updated to fully qualified versions upon
193 * @param container container for additional validation results
194 * @return {@code true} if the subgroup content was changed, {@code false} if there
196 * @throws PfModelException if an error occurred
198 private boolean updateSubGroup(SessionData data, PdpGroup dbgroup, PdpSubGroup dbsub, DeploymentSubGroup subgrp,
199 BeanValidationResult container) throws PfModelException {
201 // perform additional validations first
202 if (!validateSubGroup(data, dbsub, subgrp, container)) {
208 switch (subgrp.getAction()) {
210 updated = addPolicies(data, dbgroup.getName(), dbsub, subgrp);
213 updated = deletePolicies(data, dbgroup.getName(), dbsub, subgrp);
217 updated = updatePolicies(data, dbgroup.getName(), dbsub, subgrp);
222 // publish any changes to the PDPs
223 makeUpdates(data, dbgroup, dbsub);
230 private boolean addPolicies(SessionData data, String pdpGroup, PdpSubGroup dbsub, DeploymentSubGroup subgrp)
231 throws PfModelException {
233 Set<ToscaConceptIdentifier> policies = new LinkedHashSet<>(dbsub.getPolicies());
234 policies.addAll(subgrp.getPolicies());
236 var subgrp2 = new DeploymentSubGroup(subgrp);
237 subgrp2.getPolicies().clear();
238 subgrp2.getPolicies().addAll(policies);
240 return updatePolicies(data, pdpGroup, dbsub, subgrp2);
243 private boolean deletePolicies(SessionData data, String pdpGroup, PdpSubGroup dbsub, DeploymentSubGroup subgrp)
244 throws PfModelException {
246 Set<ToscaConceptIdentifier> policies = new LinkedHashSet<>(dbsub.getPolicies());
247 policies.removeAll(subgrp.getPolicies());
249 var subgrp2 = new DeploymentSubGroup(subgrp);
250 subgrp2.getPolicies().clear();
251 subgrp2.getPolicies().addAll(policies);
253 return updatePolicies(data, pdpGroup, dbsub, subgrp2);
256 private boolean updatePolicies(SessionData data, String pdpGroup, PdpSubGroup dbsub, DeploymentSubGroup subgrp)
257 throws PfModelException {
259 Set<ToscaConceptIdentifier> undeployed = new HashSet<>(dbsub.getPolicies());
260 undeployed.removeAll(subgrp.getPolicies());
262 Set<ToscaConceptIdentifier> deployed = new HashSet<>(subgrp.getPolicies());
263 deployed.removeAll(dbsub.getPolicies());
265 if (deployed.isEmpty() && undeployed.isEmpty()) {
266 // lists are identical
270 Set<String> pdps = dbsub.getPdpInstances().stream().map(Pdp::getInstanceId).collect(Collectors.toSet());
272 for (ToscaConceptIdentifier policyId : deployed) {
273 ToscaPolicy policyToBeDeployed = data.getPolicy(new ToscaConceptIdentifierOptVersion(policyId));
274 data.trackDeploy(policyToBeDeployed, pdps, pdpGroup, dbsub.getPdpType());
277 for (ToscaConceptIdentifier policyId : undeployed) {
278 data.trackUndeploy(policyId, pdps, pdpGroup, dbsub.getPdpType());
281 dbsub.setPolicies(new ArrayList<>(subgrp.getPolicies()));
286 * Performs additional validations of a subgroup.
288 * @param data session data
289 * @param dbsub the subgroup, from the DB
290 * @param subgrp the subgroup to be validated, updated to fully qualified versions
292 * @param container container for additional validation results
293 * @return {@code true} if the subgroup is valid, {@code false} otherwise
294 * @throws PfModelException if an error occurred
296 private boolean validateSubGroup(SessionData data, PdpSubGroup dbsub, DeploymentSubGroup subgrp,
297 BeanValidationResult container) throws PfModelException {
299 var result = new BeanValidationResult(subgrp.getPdpType(), subgrp);
301 result.addResult(validatePolicies(data, dbsub, subgrp));
302 container.addResult(result);
304 return result.isValid();
308 * Performs additional validations of the policies within a subgroup.
310 * @param data session data
311 * @param dbsub subgroup from the DB, or {@code null} if this is a new subgroup
312 * @param subgrp the subgroup whose policies are to be validated, updated to fully
313 * qualified versions upon return
314 * @return the validation result
315 * @throws PfModelException if an error occurred
317 private ValidationResult validatePolicies(SessionData data, PdpSubGroup dbsub, DeploymentSubGroup subgrp)
318 throws PfModelException {
320 // build a map of the DB data, from policy name to (fully qualified) policy
322 Map<String, String> dbname2vers = new HashMap<>();
323 dbsub.getPolicies().forEach(ident -> dbname2vers.put(ident.getName(), ident.getVersion()));
325 var result = new BeanValidationResult(subgrp.getPdpType(), subgrp);
327 for (ToscaConceptIdentifier ident : subgrp.getPolicies()) {
328 // note: "ident" may not have a fully qualified version
330 String expectedVersion = dbname2vers.get(ident.getName());
331 if (expectedVersion != null) {
332 // policy exists in the DB list - compare the versions
333 validateVersion(expectedVersion, ident, result);
334 ident.setVersion(expectedVersion);
338 // policy doesn't appear in the DB's policy list - look it up
340 ToscaPolicy policy = data.getPolicy(new ToscaConceptIdentifierOptVersion(ident));
341 if (policy == null) {
342 result.addResult(POLICY_RESULT_NAME, ident, ValidationStatus.INVALID, "unknown policy");
344 } else if (!isPolicySupported(dbsub.getSupportedPolicyTypes(), policy.getTypeIdentifier())) {
345 result.addResult(POLICY_RESULT_NAME, ident, ValidationStatus.INVALID,
346 "not a supported policy for the subgroup");
349 // replace version with the fully qualified version from the policy
350 ident.setVersion(policy.getVersion());
358 * Determines if the new version matches the version in the DB.
360 * @param dbvers fully qualified version from the DB
361 * @param ident identifier whose version is to be validated; the version need not be
363 * @param result the validation result
365 private void validateVersion(String dbvers, ToscaConceptIdentifier ident, BeanValidationResult result) {
366 String idvers = ident.getVersion();
367 if (dbvers.equals(idvers)) {
371 // did not match - see if it's a prefix
373 if (SessionData.isVersionPrefix(idvers) && dbvers.startsWith(idvers + ".")) {
374 // ident has a prefix of this version
378 result.addResult(POLICY_RESULT_NAME, ident, ValidationStatus.INVALID,
379 "different version already deployed: " + dbvers);
383 * Deploys or updates PDP policies using the simple API.
385 * @param policies PDP policies
386 * @throws PfModelException if an error occurred
388 public void deployPolicies(PdpDeployPolicies policies) throws PfModelException {
390 MyPdpDeployPolicies checked = coder.convert(policies, MyPdpDeployPolicies.class);
391 ValidationResult result = new BeanValidator().validateTop(PdpDeployPolicies.class.getSimpleName(), checked);
392 if (!result.isValid()) {
393 String msg = result.getResult().trim();
394 throw new PfModelException(Status.BAD_REQUEST, msg);
396 } catch (CoderException e) {
397 throw new PfModelException(Status.INTERNAL_SERVER_ERROR, "cannot decode request", e);
400 process(policies, this::deploySimplePolicies);
404 * Deploys or updates PDP policies using the simple API. This is the method that does
407 * @param data session data
408 * @param policies external PDP policies
409 * @throws PfModelException if an error occurred
411 private void deploySimplePolicies(SessionData data, PdpDeployPolicies policies) throws PfModelException {
413 for (ToscaConceptIdentifierOptVersion desiredPolicy : policies.getPolicies()) {
416 processPolicy(data, desiredPolicy);
418 } catch (PfModelException | RuntimeException e) {
419 // no need to log the error here, as it will be logged by the invoker
420 logger.warn("failed to deploy policy: {}", desiredPolicy);
427 * Adds a policy to a subgroup, if it isn't there already.
430 protected Updater makeUpdater(SessionData data, ToscaPolicy policy,
431 ToscaConceptIdentifierOptVersion requestedIdent) {
433 ToscaConceptIdentifier desiredIdent = policy.getIdentifier();
434 ToscaConceptIdentifier desiredType = policy.getTypeIdentifier();
436 return (group, subgroup) -> {
438 if (!isPolicySupported(subgroup.getSupportedPolicyTypes(), desiredType)) {
439 // doesn't support the desired policy type
443 if (containsPolicy(group, subgroup, desiredIdent)) {
447 if (subgroup.getPdpInstances().isEmpty()) {
448 throw new PfModelRuntimeException(Status.BAD_REQUEST, "group " + group.getName() + " subgroup "
449 + subgroup.getPdpType() + " has no active PDPs");
453 // add the policy to the subgroup
454 subgroup.getPolicies().add(desiredIdent);
456 logger.info("add policy {} to subgroup {} {} count={}", desiredIdent, group.getName(),
457 subgroup.getPdpType(), subgroup.getPolicies().size());
459 Set<String> pdps = subgroup.getPdpInstances().stream().map(Pdp::getInstanceId).collect(Collectors.toSet());
460 ToscaPolicy policyToBeDeployed = data.getPolicy(new ToscaConceptIdentifierOptVersion(desiredIdent));
461 data.trackDeploy(policyToBeDeployed, pdps, group.getName(), subgroup.getPdpType());
468 * Determines if a policy type is supported.
470 * @param supportedTypes supported policy types, any of which may end with ".*"
471 * @param desiredType policy type of interest
472 * @return {@code true} if the policy type is supported, {@code false} otherwise
474 private boolean isPolicySupported(List<ToscaConceptIdentifier> supportedTypes,
475 ToscaConceptIdentifier desiredType) {
477 if (supportedTypes.contains(desiredType)) {
481 String desiredTypeName = desiredType.getName();
482 for (ToscaConceptIdentifier type : supportedTypes) {
483 String supType = type.getName();
484 if (supType.endsWith(".*") && desiredTypeName.startsWith(supType.substring(0, supType.length() - 1))) {
485 // matches everything up to, AND INCLUDING, the "."
494 * Determines if a subgroup already contains the desired policy.
496 * @param group group that contains the subgroup
497 * @param subgroup subgroup of interest
498 * @param desiredIdent identifier of the desired policy
499 * @return {@code true} if the subgroup contains the desired policy, {@code false}
501 * @throws PfModelRuntimeException if the subgroup contains a different version of the
504 private boolean containsPolicy(PdpGroup group, PdpSubGroup subgroup, ToscaConceptIdentifier desiredIdent) {
505 String desnm = desiredIdent.getName();
506 String desvers = desiredIdent.getVersion();
508 for (ToscaConceptIdentifier actualIdent : subgroup.getPolicies()) {
509 if (!actualIdent.getName().equals(desnm)) {
513 // found the policy - ensure the version matches
514 if (!actualIdent.getVersion().equals(desvers)) {
515 throw new PfModelRuntimeException(Status.BAD_REQUEST,
516 "group " + group.getName() + " subgroup " + subgroup.getPdpType() + " policy " + desnm
517 + " " + desvers + " different version already deployed: "
518 + actualIdent.getVersion());
521 // already has the desired policy & version
522 logger.info("subgroup {} {} already contains policy {}", group.getName(), subgroup.getPdpType(),
531 * These are only used to validate the incoming request.
535 public static class MyPdpDeployPolicies {
537 private List<@NotNull @Valid PolicyIdent> policies;
541 public static class PolicyIdent {
542 @SerializedName("policy-id")
544 @Pattern(regexp = PfKey.NAME_REGEXP)
547 @SerializedName("policy-version")
548 @Pattern(regexp = "\\d+([.]\\d+[.]\\d+)?")
549 private String version;