Examples with TwillSpecification org.apache.twill.api.TwillSpecification used on opensource projects

Example 1 with TwillSpecification

use of org.apache.twill.api.TwillSpecification in project cdap by caskdata.

the class ServiceSpecificationCodec method decodeOldSpec.

private ServiceSpecification decodeOldSpec(JsonObject json) {
    String className = json.get("classname").getAsString();
    TwillSpecification twillSpec = twillSpecificationAdapter.fromJson(json.get("spec").getAsString()).getTwillSpecification();
    Map<String, HttpServiceHandlerSpecification> handlers = Maps.newHashMap();
    RuntimeSpecification handlerSpec = twillSpec.getRunnables().get(twillSpec.getName());
    Map<String, String> configs = handlerSpec.getRunnableSpecification().getConfigs();
    // Get the class names of all handlers. It is stored in the handler runnable spec configs
    List<String> handlerClasses = GSON.fromJson(configs.get("service.runnable.handlers"), new TypeToken<List<String>>() {
    }.getType());
    List<JsonObject> handlerSpecs = GSON.fromJson(configs.get("service.runnable.handler.spec"), new TypeToken<List<JsonObject>>() {
    }.getType());
    for (int i = 0; i < handlerClasses.size(); i++) {
        String handlerClass = handlerClasses.get(i);
        JsonObject spec = handlerSpecs.get(i);
        Map<String, String> properties = GSON.fromJson(spec.get("properties"), new TypeToken<Map<String, String>>() {
        }.getType());
        // Reconstruct the HttpServiceSpecification. However there is no way to determine the datasets or endpoints
        // as it is not recorded in old spec. It's ok since the spec is only used to load data from MDS during redeploy.
        handlers.put(spec.get("name").getAsString(), new HttpServiceHandlerSpecification(handlerClass, spec.get("name").getAsString(), spec.get("description").getAsString(), properties, ImmutableSet.<String>of(), ImmutableList.<ServiceHttpEndpoint>of()));
    }
    ResourceSpecification resourceSpec = handlerSpec.getResourceSpecification();
    return new ServiceSpecification(className, twillSpec.getName(), twillSpec.getName(), handlers, new Resources(resourceSpec.getMemorySize(), resourceSpec.getVirtualCores()), resourceSpec.getInstances());
}