Examples with EventConfiguration com.walmartlabs.concord.runner.engine.EventConfiguration used on opensource projects

Example 1 with EventConfiguration

use of com.walmartlabs.concord.runner.engine.EventConfiguration in project concord by walmartlabs.

the class Main method executeProcess.

private void executeProcess(String instanceId, CheckpointManager checkpointManager, Path baseDir, Map<String, Object> processCfg) throws ExecutionException {
    // get active profiles from the request data
    Collection<String> activeProfiles = getActiveProfiles(processCfg);
    // load the project
    ProjectDefinition project = loadProject(baseDir);
    // read the list of metadata variables
    Set<String> metaVariables = getMetaVariables(processCfg);
    // event recording processCfg
    EventConfiguration eventCfg = getEventCfg(processCfg);
    Engine engine = engineFactory.create(project, baseDir, activeProfiles, metaVariables, eventCfg);
    Map<String, Object> resumeCheckpointReq = null;
    while (true) {
        Collection<Event> resultEvents;
        // check if we need to resume the process from a saved point
        Set<String> eventNames = StateManager.readResumeEvents(baseDir);
        if (eventNames == null || eventNames.isEmpty()) {
            // running fresh
            // let's check if there are some saved variables (e.g. from the parent process)
            Variables vars = readSavedVariables(baseDir);
            resultEvents = start(engine, vars, processCfg, instanceId, baseDir);
        } else {
            if (eventNames.size() > 1) {
                throw new IllegalStateException("Runtime v1 supports resuming for only one event at the time. Got: " + eventNames);
            }
            String eventName = eventNames.iterator().next();
            resultEvents = resume(engine, processCfg, instanceId, baseDir, eventName);
        }
        Event checkpointEvent = resultEvents.stream().filter(e -> e.getPayload() instanceof Map).filter(e -> getCheckpointId(e) != null).findFirst().orElse(null);
        // found a checkpoint, resume the process immediately
        if (checkpointEvent != null) {
            checkpointManager.process(getCheckpointId(checkpointEvent), getCorrelationId(checkpointEvent), checkpointEvent.getName(), baseDir);
            // clear arguments
            if (resumeCheckpointReq == null) {
                resumeCheckpointReq = new HashMap<>(processCfg);
                resumeCheckpointReq.remove(Constants.Request.ARGUMENTS_KEY);
            }
            processCfg = resumeCheckpointReq;
        } else {
            // no checkpoints, stop the execution and wait for an external event
            return;
        }
    }
}