bpmn/mso-infrastructure-bpmn/src/main/java/org/onap/so/bpmn/infrastructure/MSOInfrastructureApplication.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Modifications Copyright (c) 2019 Samsung
   8  * ================================================================================
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.so.bpmn.infrastructure;
  24
  25 import java.util.List;
  26 import java.util.concurrent.Executor;
  27 import javax.annotation.PostConstruct;
  28 import org.camunda.bpm.application.PreUndeploy;
  29 import org.camunda.bpm.application.ProcessApplicationInfo;
  30 import org.camunda.bpm.engine.ProcessEngine;
  31 import org.camunda.bpm.engine.repository.DeploymentBuilder;
  32 import org.onap.logging.filter.spring.MDCTaskDecorator;
  33 import org.onap.so.bpmn.common.DefaultToShortClassNameBeanNameGenerator;
  34 import org.onap.so.db.catalog.beans.Workflow;
  35 import org.onap.so.db.catalog.client.CatalogDbClient;
  36 import org.onap.so.logger.LoggingAnchor;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39 import org.springframework.beans.factory.annotation.Autowired;
  40 import org.springframework.beans.factory.annotation.Value;
  41 import org.springframework.boot.SpringApplication;
  42 import org.springframework.boot.autoconfigure.SpringBootApplication;
  43 import org.springframework.context.annotation.Bean;
  44 import org.springframework.context.annotation.ComponentScan;
  45 import org.springframework.context.annotation.ComponentScan.Filter;
  46 import org.springframework.context.annotation.FilterType;
  47 import org.springframework.context.annotation.Primary;
  48 import org.springframework.scheduling.annotation.EnableAsync;
  49 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
  50
  51 /**
  52  * @since Version 1.0
  53  *
  54  */
  55
  56 @SpringBootApplication
  57 @EnableAsync
  58 @ComponentScan(basePackages = {"org.onap"}, nameGenerator = DefaultToShortClassNameBeanNameGenerator.class,
  59         excludeFilters = {@Filter(type = FilterType.ANNOTATION, classes = SpringBootApplication.class)})
  60
  61 public class MSOInfrastructureApplication {
  62
  63     private static final Logger logger = LoggerFactory.getLogger(MSOInfrastructureApplication.class);
  64     @Autowired
  65     private ProcessEngine processEngine;
  66
  67     @Autowired
  68     private CatalogDbClient catalogDbClient;
  69
  70     @Value("${mso.async.core-pool-size}")
  71     private int corePoolSize;
  72
  73     @Value("${mso.async.max-pool-size}")
  74     private int maxPoolSize;
  75
  76     @Value("${mso.async.queue-capacity}")
  77     private int queueCapacity;
  78
  79     private static final String LOGS_DIR = "logs_dir";
  80     private static final String BPMN_SUFFIX = ".bpmn";
  81     private static final String SDC_SOURCE = "sdc";
  82     private static final int CANNOT_INVOKE_COMMAND = 126;
  83
  84
  85     private static void setLogsDir() {
  86         if (System.getProperty(LOGS_DIR) == null) {
  87             System.getProperties().setProperty(LOGS_DIR, "./logs/bpmn/");
  88         }
  89     }
  90
  91     public static void main(String... args) {
  92         try {
  93             SpringApplication.run(MSOInfrastructureApplication.class, args);
  94             System.getProperties().setProperty("mso.config.path", ".");
  95             setLogsDir();
  96         } catch (Exception e) {
  97             logger.error("Exception has occurred during application startup. App will exit. ", e);
  98             System.exit(CANNOT_INVOKE_COMMAND);
  99         }
 100     }
 101
 102     @PostConstruct
 103     public void postConstruct() {
 104         try {
 105             DeploymentBuilder deploymentBuilder = processEngine.getRepositoryService().createDeployment();
 106             deployCustomWorkflows(deploymentBuilder);
 107         } catch (Exception e) {
 108             logger.warn("Unable to invoke deploymentBuilder ", e);
 109         }
 110     }
 111
 112     @PreUndeploy
 113     public void cleanup(ProcessEngine processEngine, ProcessApplicationInfo processApplicationInfo,
 114             List<ProcessEngine> processEngines) {}
 115
 116     @Bean
 117     @Primary
 118     public Executor asyncExecutor() {
 119         ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
 120         executor.setTaskDecorator(new MDCTaskDecorator());
 121         executor.setCorePoolSize(corePoolSize);
 122         executor.setMaxPoolSize(maxPoolSize);
 123         executor.setQueueCapacity(queueCapacity);
 124         executor.setThreadNamePrefix("Camunda-");
 125         executor.initialize();
 126         return executor;
 127     }
 128
 129     public void deployCustomWorkflows(DeploymentBuilder deploymentBuilder) {
 130         logger.debug("Attempting to deploy custom workflows");
 131         try {
 132             List<Workflow> workflows = catalogDbClient.findWorkflowBySource(SDC_SOURCE);
 133             if (workflows != null && !workflows.isEmpty()) {
 134                 for (Workflow workflow : workflows) {
 135                     String workflowName = workflow.getName();
 136                     String workflowBody = workflow.getBody();
 137                     if (!workflowName.endsWith(BPMN_SUFFIX)) {
 138                         workflowName += BPMN_SUFFIX;
 139                     }
 140                     if (workflowBody != null) {
 141                         logger.info(LoggingAnchor.TWO, "Deploying custom workflow", workflowName);
 142                         deploymentBuilder.addString(workflowName, workflowBody);
 143                     }
 144                     deploymentBuilder.enableDuplicateFiltering(true);
 145                 }
 146                 deploymentBuilder.deploy();
 147             }
 148         } catch (Exception e) {
 149             logger.warn("Unable to deploy custom workflows ", e);
 150         }
 151     }
 152 }