gmunozfe commented on code in PR #1895: URL: https://github.com/apache/incubator-kie-kogito-examples/pull/1895#discussion_r1528378805
########## serverless-workflow-examples/sonata-workflow-fluent/src/main/java/org/kie/kogito/serverless/workflow/examples/ParallelRest.java: ########## @@ -0,0 +1,102 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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. + */ +package org.kie.kogito.serverless.workflow.examples; + +import java.util.Map; + +import org.kie.kogito.process.Process; +import org.kie.kogito.serverless.workflow.actions.WorkflowLogLevel; +import org.kie.kogito.serverless.workflow.executor.StaticWorkflowApplication; +import org.kie.kogito.serverless.workflow.fluent.FunctionBuilder.HttpMethod; +import org.kie.kogito.serverless.workflow.models.JsonNodeModel; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.fasterxml.jackson.databind.node.ObjectNode; + +import io.serverlessworkflow.api.Workflow; + +import static org.kie.kogito.serverless.workflow.fluent.ActionBuilder.call; +import static org.kie.kogito.serverless.workflow.fluent.ActionBuilder.log; +import static org.kie.kogito.serverless.workflow.fluent.ActionBuilder.subprocess; +import static org.kie.kogito.serverless.workflow.fluent.FunctionBuilder.rest; +import static org.kie.kogito.serverless.workflow.fluent.StateBuilder.operation; +import static org.kie.kogito.serverless.workflow.fluent.StateBuilder.parallel; +import static org.kie.kogito.serverless.workflow.fluent.WorkflowBuilder.jsonObject; +import static org.kie.kogito.serverless.workflow.fluent.WorkflowBuilder.workflow; + +public class ParallelRest { + + private static final Logger logger = LoggerFactory.getLogger(ParallelRest.class); + + public static void main(String[] args) { + try (StaticWorkflowApplication application = StaticWorkflowApplication.create()) { + // create a reusable process for several executions + Process<JsonNodeModel> process = application.process(getWorkflow(application)); + // execute it with one person name + logger.info(application.execute(process, Map.of("name", "Javier")).getWorkflowdata().toPrettyString()); + // execute it with another person name + logger.info(application.execute(process, Map.of("name", "Alba")).getWorkflowdata().toPrettyString()); + } + } + + static Workflow getWorkflow(StaticWorkflowApplication application) { + ObjectNode nameArgs = jsonObject().put("name", ".name"); + + // Define a subflow process that retrieve country information from the given name + Workflow subflow = workflow("GetCountry") + // subflow consist of just one state with two sequential actions + .start(operation() + // call rest function to retrieve country id + .action(call(rest("getCountryId", HttpMethod.get, "https://api.nationalize.io:/?name={name}";), nameArgs) + // extract relevant information from the response using JQ expression + .resultFilter(".country[0].country_id").outputFilter(".id")) + // call rest function to retrieve country information from country id + .action(call(rest("getCountryInfo", HttpMethod.get, "https://restcountries.com/v3.1/alpha/{id}";), jsonObject().put("id", ".id")) + // we are only interested in country name, longitude and latitude + .resultFilter("{country: {name:.[].name.common, latitude: .[].latlng[0], longitude: .[].latlng[1] }}")) + // return only country field to parent flow + .outputFilter("{country}")) + .end().build(); + + Process<JsonNodeModel> subprocess = application.process(subflow); + // This is the main flow, it invokes two services (one for retrieving the age and another to get the gender of the given name )and one subprocess (the country one defined above) in parallel + // Once the three of them has been executed, if age is greater than 50, it retrieve the weather information for the retrieved country, + // Else, it gets the list of universities for that country. Review Comment: I will express it the other way around (same as in algorithm): if age is less than 50.... else .... (though they are equivalent, it's easy to understand) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
