2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021 Nordix Foundation.
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.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.clamp.controlloop.participant.policy.main.handler;
23 import java.time.Instant;
24 import java.util.LinkedHashMap;
26 import java.util.Map.Entry;
27 import java.util.UUID;
29 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatistics;
30 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
31 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
32 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
33 import org.onap.policy.clamp.controlloop.participant.intermediary.api.ControlLoopElementListener;
34 import org.onap.policy.clamp.controlloop.participant.intermediary.api.ParticipantIntermediaryApi;
35 import org.onap.policy.models.base.PfModelException;
36 import org.onap.policy.models.base.PfModelRuntimeException;
37 import org.onap.policy.models.provider.PolicyModelsProvider;
38 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
39 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyType;
40 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
41 import org.slf4j.Logger;
42 import org.slf4j.LoggerFactory;
43 import org.springframework.stereotype.Component;
46 * This class handles implementation of controlLoopElement updates.
49 public class ControlLoopElementHandler implements ControlLoopElementListener {
51 private static final Logger LOGGER = LoggerFactory.getLogger(ControlLoopElementHandler.class);
52 private final Map<String, String> policyTypeMap = new LinkedHashMap<>();
53 private final Map<String, String> policyMap = new LinkedHashMap<>();
55 private final PolicyModelsProvider databaseProvider;
58 private ParticipantIntermediaryApi intermediaryApi;
63 * @param databaseProvider the Policy Models Provider
65 public ControlLoopElementHandler(PolicyModelsProvider databaseProvider) {
66 this.databaseProvider = databaseProvider;
70 * Callback method to handle a control loop element state change.
72 * @param controlLoopElementId the ID of the control loop element
73 * @param currentState the current state of the control loop element
74 * @param newState the state to which the control loop element is changing to
75 * @throws PfModelException in case of an exception
78 public void controlLoopElementStateChange(UUID controlLoopElementId, ControlLoopState currentState,
79 ControlLoopOrderedState newState) throws PfModelException {
83 deletePolicyData(controlLoopElementId, newState);
84 } catch (PfModelRuntimeException e) {
85 LOGGER.debug("Delete policytpes failed", e);
89 intermediaryApi.updateControlLoopElementState(controlLoopElementId, newState, ControlLoopState.PASSIVE);
92 intermediaryApi.updateControlLoopElementState(controlLoopElementId, newState, ControlLoopState.RUNNING);
95 LOGGER.debug("Unknown orderedstate {}", newState);
100 private void deletePolicyData(UUID controlLoopElementId, ControlLoopOrderedState newState) throws PfModelException {
101 // Delete all policies of this controlLoop from policy framework
102 for (Entry<String, String> policy : policyMap.entrySet()) {
103 databaseProvider.deletePolicy(policy.getKey(), policy.getValue());
106 // Delete all policy types of this control loop from policy framework
107 for (Entry<String, String> policyType : policyTypeMap.entrySet()) {
108 databaseProvider.deletePolicyType(policyType.getKey(), policyType.getValue());
110 policyTypeMap.clear();
111 intermediaryApi.updateControlLoopElementState(controlLoopElementId, newState, ControlLoopState.UNINITIALISED);
115 * Callback method to handle an update on a control loop element.
117 * @param element the information on the control loop element
118 * @param controlLoopDefinition toscaServiceTemplate
119 * @throws PfModelException in case of an exception
122 public void controlLoopElementUpdate(ControlLoopElement element, ToscaServiceTemplate controlLoopDefinition)
123 throws PfModelException {
124 intermediaryApi.updateControlLoopElementState(element.getId(), element.getOrderedState(),
125 ControlLoopState.PASSIVE);
126 if (controlLoopDefinition.getPolicyTypes() != null) {
127 for (ToscaPolicyType policyType : controlLoopDefinition.getPolicyTypes().values()) {
128 policyTypeMap.put(policyType.getName(), policyType.getVersion());
130 databaseProvider.createPolicyTypes(controlLoopDefinition);
132 if (controlLoopDefinition.getToscaTopologyTemplate().getPolicies() != null) {
133 for (Map<String, ToscaPolicy> foundPolicyMap : controlLoopDefinition.getToscaTopologyTemplate()
135 for (Entry<String, ToscaPolicy> policyEntry : foundPolicyMap.entrySet()) {
136 ToscaPolicy policy = policyEntry.getValue();
137 policyMap.put(policy.getName(), policy.getVersion());
140 databaseProvider.createPolicies(controlLoopDefinition);
145 * Handle controlLoopElement statistics.
147 * @param controlLoopElementId controlloop element id
150 public void handleStatistics(UUID controlLoopElementId) throws PfModelException {
151 ControlLoopElement clElement = intermediaryApi.getControlLoopElement(controlLoopElementId);
152 if (clElement != null) {
153 ClElementStatistics clElementStatistics = new ClElementStatistics();
154 clElementStatistics.setControlLoopState(clElement.getState());
155 clElementStatistics.setTimeStamp(Instant.now());
156 intermediaryApi.updateControlLoopElementStatistics(controlLoopElementId, clElementStatistics);