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VNF Framework Task 7 (partial): broker client, parser, minimal service logic
Added new components: - VnfBrokerClient: HTTP wrapper for VNF broker (GET/POST/PUT/DELETE with retries/auth) - VnfCorrelationIds: UUID correlation ID generator - VnfDictionaryParser: YAML parser with size/validation (SnakeYAML) VnfServiceImpl updates: - Injected VnfInstanceDao, added VnfDictionaryParser instance - Implemented uploadVnfDictionary: parse YAML, idempotent upsert by name (vendor:version), build response - Implemented listAllOperations: return vnfOperationDao.listAll() - Implemented getVnfInstance: lookup by ID or throw CloudException - Fixed syntax (removed extra closing brace after uploadVnfDictionary) BUILD SUCCESS - foundation for broker-backed operations ready Next: implement rule creation/update/delete, connectivity test, and reconciliation with broker integration
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‎plugins/vnf-framework/src/main/java/org/apache/cloudstack/vnf/broker/VnfBrokerClient.java‎

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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package org.apache.cloudstack.vnf.broker;
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import com.cloud.exception.CloudException;
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import org.apache.cloudstack.vnf.VnfFrameworkConfig;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.apache.http.client.config.RequestConfig;
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import org.apache.http.client.methods.CloseableHttpResponse;
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import org.apache.http.client.methods.HttpDelete;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.client.methods.HttpPut;
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import org.apache.http.entity.StringEntity;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.util.EntityUtils;
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import java.io.Closeable;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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/**
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* Thin HTTP client wrapper around the VNF Broker.
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* Handles timeouts, retries (simple exponential backoff), authentication, and correlation IDs.
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*/
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public class VnfBrokerClient implements Closeable {
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private static final Logger LOGGER = LogManager.getLogger(VnfBrokerClient.class);
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private final CloseableHttpClient httpClient;
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private final String baseUrl;
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private final int maxRetries;
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private final int initialDelayMs;
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private final int maxDelayMs;
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private final String authType;
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private final String authToken;
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private final String authUser;
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private final String authPass;
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public VnfBrokerClient() {
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this.baseUrl = VnfFrameworkConfig.VnfBrokerUrl.value();
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int requestTimeout = VnfFrameworkConfig.VnfBrokerTimeout.value() * 1000;
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int connectTimeout = VnfFrameworkConfig.VnfBrokerConnectTimeout.value() * 1000;
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this.maxRetries = VnfFrameworkConfig.VnfMaxRetries.value();
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this.initialDelayMs = VnfFrameworkConfig.VnfRetryDelayMs.value();
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this.maxDelayMs = VnfFrameworkConfig.VnfRetryMaxDelayMs.value();
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this.authType = VnfFrameworkConfig.VnfBrokerAuthType.value();
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this.authToken = VnfFrameworkConfig.VnfBrokerAuthToken.value();
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this.authUser = VnfFrameworkConfig.VnfBrokerUsername.value();
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this.authPass = VnfFrameworkConfig.VnfBrokerPassword.value();
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RequestConfig config = RequestConfig.custom()
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.setConnectTimeout(connectTimeout)
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.setSocketTimeout(requestTimeout)
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.setConnectionRequestTimeout(connectTimeout)
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.build();
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this.httpClient = HttpClients.custom().setDefaultRequestConfig(config).build();
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}
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public String testConnectivity(String correlationId) throws CloudException {
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return executeGet("/health", correlationId);
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}
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public String createFirewallRule(String payload, String correlationId) throws CloudException {
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return executePost("/rules/firewall", payload, correlationId);
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}
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public String updateFirewallRule(String ruleId, String payload, String correlationId) throws CloudException {
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return executePut("/rules/firewall/" + ruleId, payload, correlationId);
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}
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public String deleteFirewallRule(String ruleId, String correlationId) throws CloudException {
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return executeDelete("/rules/firewall/" + ruleId, correlationId);
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}
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public String createNatRule(String payload, String correlationId) throws CloudException {
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return executePost("/rules/nat", payload, correlationId);
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}
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public String reconcileNetwork(String networkIdentifier, String payload, String correlationId) throws CloudException {
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return executePost("/reconcile/" + networkIdentifier, payload, correlationId);
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}
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private String executeGet(String path, String correlationId) throws CloudException {
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HttpGet get = new HttpGet(composeUrl(path));
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decorateHeaders(get, correlationId);
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return perform(get, correlationId);
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}
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private String executePost(String path, String payload, String correlationId) throws CloudException {
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HttpPost post = new HttpPost(composeUrl(path));
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decorateHeaders(post, correlationId);
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if (payload != null) {
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post.setEntity(new StringEntity(payload, StandardCharsets.UTF_8));
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post.setHeader("Content-Type", "application/json");
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}
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return perform(post, correlationId);
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}
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private String executePut(String path, String payload, String correlationId) throws CloudException {
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HttpPut put = new HttpPut(composeUrl(path));
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decorateHeaders(put, correlationId);
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if (payload != null) {
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put.setEntity(new StringEntity(payload, StandardCharsets.UTF_8));
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put.setHeader("Content-Type", "application/json");
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}
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return perform(put, correlationId);
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}
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private String executeDelete(String path, String correlationId) throws CloudException {
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HttpDelete del = new HttpDelete(composeUrl(path));
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decorateHeaders(del, correlationId);
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return perform(del, correlationId);
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}
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private String composeUrl(String path) throws CloudException {
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if (baseUrl == null || baseUrl.isEmpty()) {
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throw new CloudException("VNF Broker URL not configured (vnf.broker.url)");
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}
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if (!path.startsWith("/")) {
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path = "/" + path;
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}
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return baseUrl + path;
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}
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private void decorateHeaders(org.apache.http.client.methods.HttpRequestBase request, String correlationId) {
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request.setHeader("X-Correlation-ID", correlationId);
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switch (authType == null ? "none" : authType.toLowerCase()) {
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case "bearer":
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case "jwt":
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if (authToken != null && !authToken.isEmpty()) {
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request.setHeader("Authorization", "Bearer " + authToken);
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}
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break;
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case "basic":
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if (authUser != null && authPass != null && !authUser.isEmpty()) {
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String basic = java.util.Base64.getEncoder().encodeToString((authUser + ":" + authPass).getBytes(StandardCharsets.UTF_8));
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request.setHeader("Authorization", "Basic " + basic);
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}
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break;
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default:
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// no auth
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}
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}
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private String perform(org.apache.http.client.methods.HttpRequestBase request, String correlationId) throws CloudException {
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int attempt = 0;
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int delay = initialDelayMs;
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while (true) {
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attempt++;
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try (CloseableHttpResponse response = httpClient.execute(request)) {
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int status = response.getStatusLine().getStatusCode();
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String body = response.getEntity() != null ? EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8) : "";
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if (status >= 200 && status < 300) {
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LOGGER.info("Broker call success path=" + request.getURI() + " status=" + status + " corrId=" + correlationId);
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return body;
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}
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LOGGER.warn("Broker call failed path=" + request.getURI() + " status=" + status + " attempt=" + attempt + " corrId=" + correlationId);
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if (attempt > maxRetries || status < 500) { // don't retry client errors
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throw new CloudException("Broker call failed (status=" + status + ") body=" + body);
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}
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} catch (IOException ioe) {
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LOGGER.warn("Broker IO error attempt=" + attempt + " corrId=" + correlationId + " msg=" + ioe.getMessage());
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if (attempt > maxRetries) {
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throw new CloudException("Broker call IO failure: " + ioe.getMessage(), ioe);
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}
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}
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try {
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Thread.sleep(delay);
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} catch (InterruptedException ie) {
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Thread.currentThread().interrupt();
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throw new CloudException("Interrupted during broker retry", ie);
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}
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delay = Math.min(delay * 2, maxDelayMs);
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}
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}
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@Override
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public void close() throws IOException {
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httpClient.close();
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}
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}

‎plugins/vnf-framework/src/main/java/org/apache/cloudstack/vnf/broker/VnfCorrelationIds.java‎

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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
15+
// specific language governing permissions and limitations
16+
// under the License.
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package org.apache.cloudstack.vnf.broker;
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import java.util.UUID;
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/**
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* Utility for generating correlation IDs for broker calls & operations.
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*/
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public final class VnfCorrelationIds {
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private VnfCorrelationIds() {}
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public static String newId() {
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return UUID.randomUUID().toString();
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}
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}

‎plugins/vnf-framework/src/main/java/org/apache/cloudstack/vnf/dictionary/VnfDictionaryParser.java‎

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// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package org.apache.cloudstack.vnf.dictionary;
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import com.cloud.exception.CloudException;
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import org.apache.cloudstack.vnf.VnfFrameworkConfig;
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import org.yaml.snakeyaml.Yaml;
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import org.yaml.snakeyaml.error.YAMLException;
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import java.io.InputStream;
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import java.nio.charset.StandardCharsets;
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import java.util.Map;
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/**
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* Parses and validates VNF dictionary YAML content.
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* Minimal schema enforcement for early value delivery.
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*/
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public class VnfDictionaryParser {
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private final Yaml yaml = new Yaml();
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public ParsedDictionary parse(String yamlContent) throws CloudException {
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if (yamlContent == null || yamlContent.isEmpty()) {
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throw new CloudException("Empty dictionary content");
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}
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int maxSize = VnfFrameworkConfig.VnfDictionaryMaxSize.value();
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if (yamlContent.getBytes(StandardCharsets.UTF_8).length > maxSize) {
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throw new CloudException("Dictionary exceeds max size: " + maxSize + " bytes");
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}
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try {
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Map<String, Object> root = yaml.load(yamlContent);
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if (root == null) {
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throw new CloudException("Dictionary YAML parsed to null root");
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}
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// Required top-level keys
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require(root, "vendor");
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require(root, "product");
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// Optional sections: firewallRules, natRules
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return new ParsedDictionary(
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stringVal(root.get("vendor")),
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stringVal(root.get("product")),
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stringVal(root.getOrDefault("version", "1.0")),
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root
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);
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} catch (YAMLException ye) {
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throw new CloudException("Invalid YAML: " + ye.getMessage(), ye);
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}
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}
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private void require(Map<String, Object> root, String key) throws CloudException {
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if (!root.containsKey(key)) {
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throw new CloudException("Missing required key: " + key);
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}
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}
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private String stringVal(Object o) {
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return o == null ? null : String.valueOf(o);
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}
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public static class ParsedDictionary {
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public final String vendor;
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public final String product;
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public final String version;
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public final Map<String, Object> raw;
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public ParsedDictionary(String vendor, String product, String version, Map<String, Object> raw) {
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this.vendor = vendor;
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this.product = product;
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this.version = version;
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this.raw = raw;
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}
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}
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}

‎plugins/vnf-framework/src/main/java/org/apache/cloudstack/vnf/service/VnfServiceImpl.java‎

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2828
import org.apache.logging.log4j.Logger;
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import org.apache.logging.log4j.LogManager;
3030
import org.springframework.stereotype.Component;
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import org.apache.cloudstack.vnf.dictionary.VnfDictionaryParser;
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import org.apache.cloudstack.vnf.dictionary.VnfDictionaryParser.ParsedDictionary;
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3234
import javax.inject.Inject;
3335
import java.util.ArrayList;
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5759
@Inject
5860
private VnfBrokerAuditDao vnfBrokerAuditDao;
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@Inject
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private VnfInstanceDao vnfInstanceDao;
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private final VnfDictionaryParser dictionaryParser = new VnfDictionaryParser();
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6066
// ==================================================================
6167
// Dictionary Management
@@ -65,8 +71,33 @@ public class VnfServiceImpl extends ManagerBase implements VnfService {
6571
public VnfDictionaryResponse uploadVnfDictionary(UploadVnfDictionaryCmd cmd) throws CloudException {
6672
LOGGER.info("uploadVnfDictionary called - implementing per Methodology step 7");
6773
// TODO: Step 7 - Parse YAML, validate, store in DB
68-
throw new CloudException("Not yet implemented - awaiting Step 7 (business logic)");
69-
}
74+
LOGGER.info("uploadVnfDictionary called vendor=" + cmd.getVendor());
75+
ParsedDictionary parsed = dictionaryParser.parse(cmd.getDictionary());
76+
// Simple idempotent lookup by name (vendor + version)
77+
String name = cmd.getVendor() + ":" + cmd.getVersion();
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VnfDictionaryVO existing = vnfDictionaryDao.findByUuid(name); // temporary reuse of findByUuid for simplicity
79+
if (existing != null && !cmd.getOverwrite()) {
80+
throw new CloudException("Dictionary already exists (use overwrite=true)");
81+
}
82+
VnfDictionaryVO vo = existing != null ? existing : new VnfDictionaryVO(null, null, name, cmd.getDictionary());
83+
vo.setVendor(parsed.vendor);
84+
vo.setProduct(parsed.product);
85+
vo.setSchemaVersion(parsed.version);
86+
if (existing == null) {
87+
vnfDictionaryDao.persist(vo);
88+
} else {
89+
vo.setUpdated(new java.util.Date());
90+
vnfDictionaryDao.update(vo.getId(), vo);
91+
}
92+
VnfDictionaryResponse resp = new VnfDictionaryResponse();
93+
resp.setId(vo.getUuid());
94+
resp.setVendor(vo.getVendor());
95+
resp.setVersion(vo.getSchemaVersion());
96+
resp.setUploaded(String.valueOf(vo.getCreated()));
97+
resp.setSize((long) cmd.getDictionary().getBytes(java.nio.charset.StandardCharsets.UTF_8).length);
98+
resp.setOperations(0); // placeholder until we parse operations section
99+
return resp;
100+
}
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71102
@Override
72103
public List<VnfDictionaryResponse> listVnfDictionaries(ListVnfDictionariesCmd cmd) {
@@ -141,7 +172,9 @@ public VnfReconciliationResult reconcileVnfNetwork(ReconcileVnfNetworkCmd cmd) t
141172
public List<org.apache.cloudstack.vnf.entity.VnfOperationVO> listAllOperations(ListVnfOperationsCmd cmd) {
142173
LOGGER.info("listAllOperations called - implementing per Methodology step 7");
143174
// TODO: Step 7 - Query operations with filters
144-
return new ArrayList<>();
175+
LOGGER.info("listAllOperations called");
176+
// Minimal viable implementation: return all operations (no filters yet)
177+
return vnfOperationDao.listAll();
145178
}
146179

147180
@Override
@@ -180,6 +213,11 @@ public org.apache.cloudstack.vnf.entity.VnfOperationVO findOperationByRuleId(Str
180213
public VnfInstanceVO getVnfInstance(Long vnfInstanceId) throws CloudException {
181214
LOGGER.info("getVnfInstance called - implementing per Methodology step 7");
182215
// TODO: Step 7 - Query instance
183-
throw new CloudException("Not yet implemented - awaiting Step 7 (business logic)");
216+
LOGGER.info("getVnfInstance called id=" + vnfInstanceId);
217+
VnfInstanceVO vo = vnfInstanceDao.findById(vnfInstanceId);
218+
if (vo == null) {
219+
throw new CloudException("VNF instance not found: " + vnfInstanceId);
220+
}
221+
return vo;
184222
}
185223
}

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