diff options
Diffstat (limited to 'models-interactions/model-impl/so/src/main')
| -rw-r--r-- | models-interactions/model-impl/so/src/main/java/org/onap/policy/so/SoManager.java | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/models-interactions/model-impl/so/src/main/java/org/onap/policy/so/SoManager.java b/models-interactions/model-impl/so/src/main/java/org/onap/policy/so/SoManager.java deleted file mode 100644 index 5b8aef264..000000000 --- a/models-interactions/model-impl/so/src/main/java/org/onap/policy/so/SoManager.java +++ /dev/null @@ -1,389 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * so - * ================================================================================ - * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved. - * Modifications Copyright (C) 2019-2020 Nordix Foundation. - * Modifications Copyright (C) 2019 Samsung Electronics Co., Ltd. - * ================================================================================ - * 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.so; - -import com.google.gson.GsonBuilder; -import com.google.gson.JsonSyntaxException; -import java.util.HashMap; -import java.util.Map; -import java.util.concurrent.Callable; -import java.util.concurrent.ExecutorService; -import java.util.concurrent.Executors; -import java.util.concurrent.Future; -import org.apache.commons.lang3.tuple.Pair; -import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure; -import org.onap.policy.common.endpoints.utils.NetLoggerUtil; -import org.onap.policy.common.endpoints.utils.NetLoggerUtil.EventType; -import org.onap.policy.rest.RestManager; -import org.onap.policy.so.util.Serialization; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -/** - * This class handles the interface towards SO (Service Orchestrator) for the ONAP Policy Framework. The SO API is - * defined at this link: - * http://onap.readthedocs.io/en/latest/submodules/so.git/docs/SO_R1_Interface.html#get-orchestration-request - * - */ -public final class SoManager { - - // TODO remove this class - - private static final Logger logger = LoggerFactory.getLogger(SoManager.class); - - private static ExecutorService executors = Executors.newCachedThreadPool(); - - private static final int SO_RESPONSE_ERROR = 999; - private static final String MEDIA_TYPE = "application/json"; - private static final String LINE_SEPARATOR = System.lineSeparator(); - - // REST get timeout value in milliseconds - private static final int GET_REQUESTS_BEFORE_TIMEOUT = 20; - private static final long GET_REQUEST_WAIT_INTERVAL = 20000; - - // The REST manager used for processing REST calls for this VFC manager - private RestManager restManager; - - private long restGetTimeout = GET_REQUEST_WAIT_INTERVAL; - - private String url; - private String user; - private String password; - - @FunctionalInterface - public interface SoCallback { - public void onSoResponseWrapper(SoResponseWrapper wrapper); - } - - /** - * Default constructor. - */ - public SoManager(String url, String user, String password) { - this.url = url; - this.user = user; - this.password = password; - restManager = new RestManager(); - } - - /** - * Create a service instance in SO. - * - * @param url the SO URL - * @param urlBase the base URL - * @param username user name on SO - * @param password password on SO - * @param request the request to issue to SO - * @return the SO Response object - */ - public SoResponse createModuleInstance(final String url, final String urlBase, final String username, - final String password, final SoRequest request) { - // Issue the HTTP POST request to SO to create the service instance - String requestJson = Serialization.gsonPretty.toJson(request); - NetLoggerUtil.getNetworkLogger().info("[OUT|{}|{}|{}|{}|{}|{}|]{}{}", "SO", url, username, password, - createSimpleHeaders(), MEDIA_TYPE, LINE_SEPARATOR, requestJson); - Pair<Integer, String> httpResponse = - restManager.post(url, username, password, createSimpleHeaders(), MEDIA_TYPE, requestJson); - - // Process the response from SO - SoResponse response = waitForSoOperationCompletion(urlBase, username, password, url, httpResponse); - if (SO_RESPONSE_ERROR != response.getHttpResponseCode()) { - return response; - } else { - return null; - } - } - - /** - * Works just like SOManager#asyncSORestCall(String, WorkingMemory, String, String, String, SORequest) except the - * vfModuleInstanceId is always null. - * - */ - public Future<SoResponse> asyncSoRestCall(final String requestId, final SoCallback callback, - final String serviceInstanceId, final String vnfInstanceId, final SoRequest request) { - return asyncSoRestCall(requestId, callback, serviceInstanceId, vnfInstanceId, null, request); - } - - /** - * This method makes an asynchronous Rest call to MSO and inserts the response into Drools working memory. - * - * @param requestId the request id - * @param callback callback method - * @param serviceInstanceId service instance id to construct the request url - * @param vnfInstanceId vnf instance id to construct the request url - * @param vfModuleInstanceId vfModule instance id to construct the request url (required in case of delete vf - * module) - * @param request the SO request - * @return a concurrent Future for the thread that handles the request - */ - public Future<SoResponse> asyncSoRestCall(final String requestId, final SoCallback callback, - final String serviceInstanceId, final String vnfInstanceId, final String vfModuleInstanceId, - final SoRequest request) { - return executors.submit(new AsyncSoRestCallThread(requestId, callback, serviceInstanceId, vnfInstanceId, - vfModuleInstanceId, request, this)); - } - - /** - * This class handles an asynchronous request to SO as a thread. - */ - private class AsyncSoRestCallThread implements Callable<SoResponse> { - final String requestId; - final SoCallback callback; - final String serviceInstanceId; - final String vnfInstanceId; - final String vfModuleInstanceId; - final SoRequest request; - final String baseUrl; - final String user; - final String password; - - /** - * Constructor, sets the context of the request. - * - * @param requestID The request ID - * @param wm reference to the Drools working memory - * @param serviceInstanceId the service instance in SO to use - * @param vnfInstanceId the VNF instance that is the subject of the request - * @param vfModuleInstanceId the vf module instance id (not null in case of delete vf module request) - * @param request the request itself - */ - private AsyncSoRestCallThread(final String requestId, final SoCallback callback, final String serviceInstanceId, - final String vnfInstanceId, final String vfModuleInstanceId, final SoRequest request, - final SoManager callingSoManager) { - this.requestId = requestId; - this.callback = callback; - this.serviceInstanceId = serviceInstanceId; - this.vnfInstanceId = vnfInstanceId; - this.vfModuleInstanceId = vfModuleInstanceId; - this.request = request; - this.baseUrl = callingSoManager.url; - this.user = callingSoManager.user; - this.password = callingSoManager.password; - } - - /** - * Process the asynchronous SO request. - */ - @Override - public SoResponse call() { - - // Create a JSON representation of the request - String soJson = new GsonBuilder().disableHtmlEscaping().setPrettyPrinting().create().toJson(request); - String initialUrl = null; - Pair<Integer, String> httpResponse = null; - - if (request.getOperationType() != null && request.getOperationType().equals(SoOperationType.SCALE_OUT)) { - initialUrl = this.baseUrl + "/serviceInstantiation/v7/serviceInstances/" + serviceInstanceId + "/vnfs/" - + vnfInstanceId + "/vfModules/scaleOut"; - NetLoggerUtil.log(EventType.OUT, CommInfrastructure.REST, initialUrl, soJson); - httpResponse = restManager.post(initialUrl, this.user, this.password, createSimpleHeaders(), MEDIA_TYPE, - soJson); - } else if (request.getOperationType() != null - && request.getOperationType().equals(SoOperationType.DELETE_VF_MODULE)) { - initialUrl = this.baseUrl + "/serviceInstances/v7/" + serviceInstanceId + "/vnfs/" + vnfInstanceId - + "/vfModules/" + vfModuleInstanceId; - NetLoggerUtil.log(EventType.OUT, CommInfrastructure.REST, initialUrl, soJson); - httpResponse = restManager.delete(initialUrl, this.user, this.password, createSimpleHeaders(), - MEDIA_TYPE, soJson); - } else { - return null; - } - - // Process the response from SO - SoResponse response = - waitForSoOperationCompletion(this.baseUrl, this.user, this.password, initialUrl, httpResponse); - - // Return the response to Drools in its working memory - SoResponseWrapper soWrapper = new SoResponseWrapper(response, requestId); - if (this.callback != null) { - this.callback.onSoResponseWrapper(soWrapper); - } - - return response; - } - } - - /** - * Wait for the SO operation we have ordered to complete. - * - * @param urlBaseSo The base URL for SO - * @param username user name on SO - * @param password password on SO - * @param initialRequestUrl The URL of the initial HTTP request - * @param initialHttpResponse The initial HTTP message returned from SO - * @return The parsed final response of SO to the request - */ - private SoResponse waitForSoOperationCompletion(final String urlBaseSo, final String username, - final String password, final String initialRequestUrl, final Pair<Integer, String> initialHttpResponse) { - // Process the initial response from SO, the response to a post - SoResponse response = processSoResponse(initialRequestUrl, initialHttpResponse); - if (SO_RESPONSE_ERROR == response.getHttpResponseCode()) { - return response; - } - - // The SO URL to use to get the status of orchestration requests - String urlGet = urlBaseSo + "/orchestrationRequests/v5/" + response.getRequestReferences().getRequestId(); - - // The HTTP status code of the latest response - Pair<Integer, String> latestHttpResponse = initialHttpResponse; - - // Wait for the response from SO - for (int attemptsLeft = GET_REQUESTS_BEFORE_TIMEOUT; attemptsLeft >= 0; attemptsLeft--) { - // The SO request may have completed even on the first request so we check the - // response - // here before - // issuing any other requests - if (isRequestStateFinished(latestHttpResponse, response)) { - return response; - } - - // Wait for the defined interval before issuing a get - try { - Thread.sleep(restGetTimeout); - } catch (InterruptedException e) { - logger.error("Interrupted exception: ", e); - Thread.currentThread().interrupt(); - response.setHttpResponseCode(SO_RESPONSE_ERROR); - return response; - } - - // Issue a GET to find the current status of our request - NetLoggerUtil.getNetworkLogger().info("[OUT|{}|{}|{}|{}|{}|{}|]{}", "SO", urlGet, username, password, - createSimpleHeaders(), MEDIA_TYPE, LINE_SEPARATOR); - Pair<Integer, String> httpResponse = restManager.get(urlGet, username, password, createSimpleHeaders()); - - // Get our response - response = processSoResponse(urlGet, httpResponse); - if (SO_RESPONSE_ERROR == response.getHttpResponseCode()) { - return response; - } - - // Our latest HTTP response code - latestHttpResponse = httpResponse; - } - - // We have timed out on the SO request - response.setHttpResponseCode(SO_RESPONSE_ERROR); - return response; - } - - /** - * Parse the response message from SO into a SOResponse object. - * - * @param requestURL The URL of the HTTP request - * @param httpResponse The HTTP message returned from SO - * @return The parsed response - */ - private SoResponse processSoResponse(final String requestUrl, final Pair<Integer, String> httpResponse) { - SoResponse response = new SoResponse(); - - // A null httpDetails indicates a HTTP problem, a valid response from SO must be - // either 200 - // or 202 - if (!httpResultIsNullFree(httpResponse) || (httpResponse.getLeft() != 200 && httpResponse.getLeft() != 202)) { - logger.error("Invalid HTTP response received from SO"); - response.setHttpResponseCode(SO_RESPONSE_ERROR); - return response; - } - - // Parse the JSON of the response into our POJO - try { - response = Serialization.gsonPretty.fromJson(httpResponse.getRight(), SoResponse.class); - } catch (JsonSyntaxException e) { - logger.error("Failed to deserialize HTTP response into SOResponse: ", e); - response.setHttpResponseCode(SO_RESPONSE_ERROR); - return response; - } - - // Set the HTTP response code of the response if needed - if (response.getHttpResponseCode() == 0) { - response.setHttpResponseCode(httpResponse.getLeft()); - } - - NetLoggerUtil.log(EventType.IN, CommInfrastructure.REST, requestUrl, httpResponse.getRight()); - - if (logger.isDebugEnabled()) { - logger.debug("***** Response to SO Request to URL {}:", requestUrl); - logger.debug(httpResponse.getRight()); - } - - return response; - } - - /** - * Method to allow tuning of REST get timeout. - * - * @param restGetTimeout the timeout value - */ - protected void setRestGetTimeout(final long restGetTimeout) { - this.restGetTimeout = restGetTimeout; - } - - /** - * Check that the request state of a response is defined. - * - * @param response The response to check - * @return true if the request for the response is defined - */ - private boolean isRequestStateDefined(final SoResponse response) { - return response != null && response.getRequest() != null && response.getRequest().getRequestStatus() != null - && response.getRequest().getRequestStatus().getRequestState() != null; - } - - /** - * Check that the request state of a response is finished. - * - * @param latestHttpDetails the HTTP details of the response - * @param response The response to check - * @return true if the request for the response is finished - */ - private boolean isRequestStateFinished(final Pair<Integer, String> latestHttpDetails, final SoResponse response) { - if (latestHttpDetails != null && 200 == latestHttpDetails.getLeft() && isRequestStateDefined(response)) { - String requestState = response.getRequest().getRequestStatus().getRequestState(); - return "COMPLETE".equalsIgnoreCase(requestState) || "FAILED".equalsIgnoreCase(requestState); - } else { - return false; - } - } - - /** - * Check that a HTTP operation result has no nulls. - * - * @param httpOperationResult the result to check - * @return true if no nulls are found - */ - private boolean httpResultIsNullFree(Pair<Integer, String> httpOperationResult) { - return httpOperationResult != null && httpOperationResult.getLeft() != null - && httpOperationResult.getRight() != null; - } - - /** - * Create simple HTTP headers for unauthenticated requests to SO. - * - * @return the HTTP headers - */ - private Map<String, String> createSimpleHeaders() { - Map<String, String> headers = new HashMap<>(); - headers.put("Accept", MEDIA_TYPE); - return headers; - } -} |