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Diffstat (limited to 'controlloop/common/actors/actor.appclcm/src/main/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorServiceProvider.java')
| -rw-r--r-- | controlloop/common/actors/actor.appclcm/src/main/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorServiceProvider.java | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/controlloop/common/actors/actor.appclcm/src/main/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorServiceProvider.java b/controlloop/common/actors/actor.appclcm/src/main/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorServiceProvider.java new file mode 100644 index 000000000..c52a7f08e --- /dev/null +++ b/controlloop/common/actors/actor.appclcm/src/main/java/org/onap/policy/controlloop/actor/appclcm/AppcLcmActorServiceProvider.java @@ -0,0 +1,293 @@ +/*- + * ============LICENSE_START======================================================= + * AppcLcmActorServiceProvider + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.controlloop.actor.appclcm; + +import com.google.common.collect.ImmutableList; +import com.google.common.collect.ImmutableMap; + +import java.util.AbstractMap; +import java.util.AbstractMap.SimpleEntry; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.UUID; + +import org.onap.policy.aai.AAINQF199.AAINQF199InventoryResponseItem; +import org.onap.policy.aai.AAINQF199.AAINQF199Manager; +import org.onap.policy.aai.AAINQF199.AAINQF199Request; +import org.onap.policy.aai.AAINQF199.AAINQF199Response; +import org.onap.policy.appclcm.LCMCommonHeader; +import org.onap.policy.appclcm.LCMRequest; +import org.onap.policy.appclcm.LCMRequestWrapper; +import org.onap.policy.appclcm.LCMResponse; +import org.onap.policy.appclcm.LCMResponseCode; +import org.onap.policy.appclcm.LCMResponseWrapper; +import org.onap.policy.controlloop.ControlLoopOperation; +import org.onap.policy.controlloop.VirtualControlLoopEvent; +import org.onap.policy.controlloop.actorServiceProvider.spi.Actor; +import org.onap.policy.controlloop.policy.Policy; +import org.onap.policy.controlloop.policy.PolicyResult; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class AppcLcmActorServiceProvider implements Actor { + + private static final Logger logger = LoggerFactory.getLogger(AppcLcmActorServiceProvider.class); + + /* The source vnf-id provided from the DCAE onset */ + private static final String DCAE_VNF_ID = "generic-vnf.vnf-id"; + + /* To be used in future releases to restart a single vm */ + private static final String APPC_VM_ID = "vm-id"; + + /* To be used in future releases when LCM ConfigModify is used */ + private static final String APPC_REQUEST_PARAMS = "request-parameters"; + private static final String APPC_CONFIG_PARAMS = "configuration-parameters"; + + private static final ImmutableList<String> recipes = ImmutableList.of("Restart", "Rebuild", "Migrate", + "ConfigModify"); + private static final ImmutableMap<String, List<String>> targets = new ImmutableMap.Builder<String, List<String>>() + .put("Restart", ImmutableList.of("VM")).put("Rebuild", ImmutableList.of("VM")) + .put("Migrate", ImmutableList.of("VM")).put("ConfigModify", ImmutableList.of("VNF")).build(); + private static final ImmutableMap<String, List<String>> payloads = new ImmutableMap.Builder<String, List<String>>() + .put("Restart", ImmutableList.of(APPC_VM_ID)) + .put("ConfigModify", ImmutableList.of(APPC_REQUEST_PARAMS, APPC_CONFIG_PARAMS)).build(); + + @Override + public String actor() { + return "APPC"; + } + + @Override + public List<String> recipes() { + return ImmutableList.copyOf(recipes); + } + + @Override + public List<String> recipeTargets(String recipe) { + return ImmutableList.copyOf(targets.getOrDefault(recipe, Collections.emptyList())); + } + + @Override + public List<String> recipePayloads(String recipe) { + return ImmutableList.copyOf(payloads.getOrDefault(recipe, Collections.emptyList())); + } + + /** + * Constructs an A&AI Named Query using a source vnf-id to determine + * the vnf-id of the target entity specified in the policy to act upon. + * + * @param resourceId + * the id of the target from the sdc catalog + * + * @param sourceVnfId + * the vnf id of the source entity reporting the alert + * + * @return the target entities vnf id to act upon + */ + public static String vnfNamedQuery(String resourceId, String sourceVnfId) { + String targetVnfId = ""; + AAINQF199Request aaiRequest = new AAINQF199Request(); + UUID requestId = UUID.randomUUID(); + + aaiRequest.queryParameters.namedQuery.namedQueryUUID = requestId; + + Map<String, Map<String, String>> filter = new HashMap<String, Map<String, String>>(); + + Map<String, String> filterItem = new HashMap<String, String>(); + filterItem.put("vnf-id", sourceVnfId); + + filter.put("generic-vnf", filterItem); + + aaiRequest.instanceFilters.instanceFilter.add(filter); + + //TODO: What is the url to use? + AAINQF199Response aaiResponse = AAINQF199Manager.postQuery("http://localhost:6666", "policy", "policy", aaiRequest, requestId); + + //TODO: What if the resourceId never matches? + for (AAINQF199InventoryResponseItem item: aaiResponse.inventoryResponseItems) { + if (item.genericVNF.modelInvariantId.equals(resourceId)) { + targetVnfId = item.genericVNF.vnfID; + } + } + + return targetVnfId; + } + + /** + * Constructs an APPC request conforming to the lcm API. + * The actual request is constructed and then placed in a + * wrapper object used to send through DMAAP. + * + * @param onset + * the event that is reporting the alert for policy + * to perform an action + * @param operation + * the control loop operation specifying the actor, + * operation, target, etc. + * @param policy + * the policy the was specified from the yaml generated + * by CLAMP or through the Policy GUI/API + * @return an APPC request conforming to the lcm API using the DMAAP wrapper + */ + public static LCMRequestWrapper constructRequest(VirtualControlLoopEvent onset, ControlLoopOperation operation, + Policy policy) { + + /* Construct an APPC request using LCM Model */ + + /* + * The actual LCM request is placed in a wrapper used to send + * through dmaap. The current version is 2.0 as of R1. + */ + LCMRequestWrapper dmaapRequest = new LCMRequestWrapper(); + dmaapRequest.setVersion("2.0"); + dmaapRequest.setCorrelationId(onset.requestID + "-" + operation.subRequestId); + dmaapRequest.setRpcName(policy.getRecipe().toLowerCase()); + dmaapRequest.setType("request"); + + /* This is the actual request that is placed in the dmaap wrapper. */ + LCMRequest appcRequest = new LCMRequest(); + + /* The common header is a required field for all APPC requests. */ + LCMCommonHeader requestCommonHeader = new LCMCommonHeader(); + requestCommonHeader.setOriginatorId(onset.requestID.toString()); + requestCommonHeader.setRequestId(onset.requestID); + requestCommonHeader.setSubRequestId(operation.subRequestId); + + appcRequest.setCommonHeader(requestCommonHeader); + + /* + * Action Identifiers are required for APPC LCM requests. + * For R1, the recipes supported by Policy only require + * a vnf-id. + */ + HashMap<String, String> requestActionIdentifiers = new HashMap<>(); + requestActionIdentifiers.put("vnf-id", onset.AAI.get(DCAE_VNF_ID)); + appcRequest.setActionIdentifiers(requestActionIdentifiers); + + /* + * An action is required for all APPC requests, this will + * be the recipe specified in the policy. + */ + appcRequest.setAction(policy.getRecipe().toLowerCase()); + + /* + * For R1, the payloads will not be required for the Restart, + * Rebuild, or Migrate recipes. APPC will populate the payload + * based on A&AI look up of the vnd-id provided in the action + * identifiers. + */ + if ("Restart".equalsIgnoreCase(policy.getRecipe()) || "Rebuild".equalsIgnoreCase(policy.getRecipe()) + || "Migrate".equalsIgnoreCase(policy.getRecipe())) { + appcRequest.setPayload(null); + } + + /* + * Once the LCM request is constructed, add it into the + * body of the dmaap wrapper. + */ + dmaapRequest.setBody(appcRequest); + + /* Return the request to be sent through dmaap. */ + return dmaapRequest; + } + + /** + * Parses the operation attempt using the subRequestId + * of APPC response. + * + * @param subRequestId + * the sub id used to send to APPC, Policy sets + * this using the operation attempt + * + * @return the current operation attempt + */ + public static Integer parseOperationAttempt(String subRequestId) { + Integer operationAttempt; + try { + operationAttempt = Integer.parseInt(subRequestId); + } catch (NumberFormatException e) { + logger.debug("A NumberFormatException was thrown due to error in parsing the operation attempt"); + return null; + } + return operationAttempt; + } + + /** + * Processes the APPC LCM response sent from APPC. Determines + * if the APPC operation was successful/unsuccessful and maps + * this to the corresponding Policy result. + * + * @param dmaapResponse + * the dmaap wrapper message that contains the + * actual APPC reponse inside the body field + * + * @return an key-value pair that contains the Policy result + * and APPC response message + */ + public static SimpleEntry<PolicyResult, String> processResponse(LCMResponseWrapper dmaapResponse) { + /* The actual APPC response is inside the wrapper's body field. */ + LCMResponse appcResponse = dmaapResponse.getBody(); + + /* The message returned in the APPC response. */ + String message; + + /* The Policy result determined from the APPC Response. */ + PolicyResult result; + + /* If there is no status, Policy cannot determine if the request was successful. */ + if (appcResponse.getStatus() == null) { + message = "Policy was unable to parse APP-C response status field (it was null)."; + return new AbstractMap.SimpleEntry<>(PolicyResult.FAILURE_EXCEPTION, message); + } + + /* If there is no code, Policy cannot determine if the request was successful. */ + String responseValue = LCMResponseCode.toResponseValue(appcResponse.getStatus().getCode()); + if (responseValue == null) { + message = "Policy was unable to parse APP-C response status code field."; + return new AbstractMap.SimpleEntry<>(PolicyResult.FAILURE_EXCEPTION, message); + } + + /* Save the APPC response's message for Policy noticiation message. */ + message = appcResponse.getStatus().getMessage(); + + /* Maps the APPC response result to a Policy result. */ + switch (responseValue) { + case LCMResponseCode.ACCEPTED: + /* Nothing to do if code is accept, continue processing */ + result = null; + break; + case LCMResponseCode.SUCCESS: + result = PolicyResult.SUCCESS; + break; + case LCMResponseCode.FAILURE: + result = PolicyResult.FAILURE; + break; + case LCMResponseCode.REJECT: + case LCMResponseCode.ERROR: + default: + result = PolicyResult.FAILURE_EXCEPTION; + } + return new AbstractMap.SimpleEntry<>(result, message); + } + +} |