use of net.sourceforge.argparse4j.inf.Subparsers in project java-docs-samples by GoogleCloudPlatform.
the class PullQueue method main.
// [END cloud_tasks_lease_and_acknowledge_task]
public static void main(String[] args) throws Exception {
ArgumentParser parser = ArgumentParsers.newFor("PullQueue").build().defaultHelp(true).description("Sample command-line program for interacting with the Cloud Tasks API.\n\n" + "See README.md for instructions on setting up your development environment " + "and running the scripts.");
Subparsers subparsers = parser.addSubparsers().dest("command");
// Create the parser for the command 'create-task'
ArgumentParser createTaskParser = subparsers.addParser("create-task").help("Acknowledge a given task, which removes it from the queue.");
createTaskParser.addArgument("--project").help("Project of the queue to add the task to.").required(true);
createTaskParser.addArgument("--location").help("Location of the queue to add the task to.").required(true);
createTaskParser.addArgument("--queue").help("ID (short name) of the queue to add the task to.").required(true);
// Create the parser for the command 'pull-and-ack-task'
ArgumentParser pullAndAckParser = subparsers.addParser("pull-and-ack-task").help("Create a task for a given queue with an arbitrary payload.");
pullAndAckParser.addArgument("--project").help("Project of the queue to add the task to.").required(true);
pullAndAckParser.addArgument("--location").help("Location of the queue to add the task to.").required(true);
pullAndAckParser.addArgument("--queue").help("ID (short name) of the queue to add the task to.").required(true);
// Parse commands
Namespace cmd = parser.parseArgs(args);
String command = cmd.get("command");
String project = cmd.get("project");
String queue = cmd.get("queue");
String location = cmd.get("location");
// Execute commands
if (command.equals("create-task")) {
createTask(project, location, queue);
}
if (command.equals("pull-and-ask-task")) {
Task task = pullTask(project, location, queue);
acknowledgeTask(task);
}
}
use of net.sourceforge.argparse4j.inf.Subparsers in project kafka by apache.
the class AgentClient method main.
public static void main(String[] args) throws Exception {
ArgumentParser rootParser = ArgumentParsers.newArgumentParser("trogdor-agent-client").defaultHelp(true).description("The Trogdor agent client.");
Subparsers subParsers = rootParser.addSubparsers().dest("command");
Subparser uptimeParser = subParsers.addParser("uptime").help("Get the agent uptime.");
addTargetArgument(uptimeParser);
addJsonArgument(uptimeParser);
Subparser statusParser = subParsers.addParser("status").help("Get the agent status.");
addTargetArgument(statusParser);
addJsonArgument(statusParser);
Subparser createWorkerParser = subParsers.addParser("createWorker").help("Create a new worker.");
addTargetArgument(createWorkerParser);
addWorkerIdArgument(createWorkerParser, "The worker ID to create.");
createWorkerParser.addArgument("--taskId").action(store()).required(true).type(String.class).dest("taskId").metavar("TASK_ID").help("The task ID to create.");
createWorkerParser.addArgument("--spec", "-s").action(store()).required(true).type(String.class).dest("taskSpec").metavar("TASK_SPEC").help("The task spec to create, or a path to a file containing the task spec.");
Subparser stopWorkerParser = subParsers.addParser("stopWorker").help("Stop a worker.");
addTargetArgument(stopWorkerParser);
addWorkerIdArgument(stopWorkerParser, "The worker ID to stop.");
Subparser destroyWorkerParser = subParsers.addParser("destroyWorker").help("Destroy a worker.");
addTargetArgument(destroyWorkerParser);
addWorkerIdArgument(destroyWorkerParser, "The worker ID to destroy.");
Subparser shutdownParser = subParsers.addParser("shutdown").help("Shut down the agent.");
addTargetArgument(shutdownParser);
Namespace res = rootParser.parseArgsOrFail(args);
String target = res.getString("target");
AgentClient client = new Builder().maxTries(3).target(target).build();
ZoneOffset localOffset = OffsetDateTime.now().getOffset();
switch(res.getString("command")) {
case "uptime":
{
UptimeResponse uptime = client.uptime();
if (res.getBoolean("json")) {
System.out.println(JsonUtil.toJsonString(uptime));
} else {
System.out.printf("Agent is running at %s.%n", target);
System.out.printf("\tStart time: %s%n", dateString(uptime.serverStartMs(), localOffset));
System.out.printf("\tCurrent server time: %s%n", dateString(uptime.nowMs(), localOffset));
System.out.printf("\tUptime: %s%n", durationString(uptime.nowMs() - uptime.serverStartMs()));
}
break;
}
case "status":
{
AgentStatusResponse status = client.status();
if (res.getBoolean("json")) {
System.out.println(JsonUtil.toJsonString(status));
} else {
System.out.printf("Agent is running at %s.%n", target);
System.out.printf("\tStart time: %s%n", dateString(status.serverStartMs(), localOffset));
List<List<String>> lines = new ArrayList<>();
List<String> header = new ArrayList<>(Arrays.asList("WORKER_ID", "TASK_ID", "STATE", "TASK_TYPE"));
lines.add(header);
for (Map.Entry<Long, WorkerState> entry : status.workers().entrySet()) {
List<String> cols = new ArrayList<>();
cols.add(Long.toString(entry.getKey()));
cols.add(entry.getValue().taskId());
cols.add(entry.getValue().getClass().getSimpleName());
cols.add(entry.getValue().spec().getClass().getCanonicalName());
lines.add(cols);
}
System.out.print(StringFormatter.prettyPrintGrid(lines));
}
break;
}
case "createWorker":
{
long workerId = res.getLong("workerId");
String taskId = res.getString("taskId");
TaskSpec taskSpec = JsonUtil.objectFromCommandLineArgument(res.getString("taskSpec"), TaskSpec.class);
CreateWorkerRequest req = new CreateWorkerRequest(workerId, taskId, taskSpec);
client.createWorker(req);
System.out.printf("Sent CreateWorkerRequest for worker %d%n.", req.workerId());
break;
}
case "stopWorker":
{
long workerId = res.getLong("workerId");
client.stopWorker(new StopWorkerRequest(workerId));
System.out.printf("Sent StopWorkerRequest for worker %d%n.", workerId);
break;
}
case "destroyWorker":
{
long workerId = res.getLong("workerId");
client.destroyWorker(new DestroyWorkerRequest(workerId));
System.out.printf("Sent DestroyWorkerRequest for worker %d%n.", workerId);
break;
}
case "shutdown":
{
client.invokeShutdown();
System.out.println("Sent ShutdownRequest.");
break;
}
default:
{
System.out.println("You must choose an action. Type --help for help.");
Exit.exit(1);
}
}
}
use of net.sourceforge.argparse4j.inf.Subparsers in project kafka by apache.
the class TransactionsCommand method execute.
static void execute(String[] args, Function<Namespace, Admin> adminSupplier, PrintStream out, Time time) throws Exception {
List<TransactionsCommand> commands = Arrays.asList(new ListTransactionsCommand(time), new DescribeTransactionsCommand(time), new DescribeProducersCommand(time), new AbortTransactionCommand(time), new FindHangingTransactionsCommand(time));
ArgumentParser parser = buildBaseParser();
Subparsers subparsers = parser.addSubparsers().dest("command").title("commands").metavar("COMMAND");
commands.forEach(command -> command.addSubparser(subparsers));
final Namespace ns;
try {
ns = parser.parseArgs(args);
} catch (ArgumentParserException e) {
parser.handleError(e);
Exit.exit(1);
return;
}
Admin admin = adminSupplier.apply(ns);
String commandName = ns.getString("command");
Optional<TransactionsCommand> commandOpt = commands.stream().filter(cmd -> cmd.name().equals(commandName)).findFirst();
if (!commandOpt.isPresent()) {
printErrorAndExit("Unexpected command " + commandName);
}
TransactionsCommand command = commandOpt.get();
command.execute(admin, ns, out);
Exit.exit(0);
}
use of net.sourceforge.argparse4j.inf.Subparsers in project kafka by apache.
the class CoordinatorClient method main.
public static void main(String[] args) throws Exception {
ArgumentParser rootParser = ArgumentParsers.newArgumentParser("trogdor-coordinator-client").description("The Trogdor coordinator client.");
Subparsers subParsers = rootParser.addSubparsers().dest("command");
Subparser uptimeParser = subParsers.addParser("uptime").help("Get the coordinator uptime.");
addTargetArgument(uptimeParser);
addJsonArgument(uptimeParser);
Subparser statusParser = subParsers.addParser("status").help("Get the coordinator status.");
addTargetArgument(statusParser);
addJsonArgument(statusParser);
Subparser showTaskParser = subParsers.addParser("showTask").help("Show a coordinator task.");
addTargetArgument(showTaskParser);
addJsonArgument(showTaskParser);
showTaskParser.addArgument("--id", "-i").action(store()).required(true).type(String.class).dest("taskId").metavar("TASK_ID").help("The task ID to show.");
showTaskParser.addArgument("--verbose", "-v").action(storeTrue()).dest("verbose").metavar("VERBOSE").help("Print out everything.");
showTaskParser.addArgument("--show-status", "-S").action(storeTrue()).dest("showStatus").metavar("SHOW_STATUS").help("Show the task status.");
Subparser showTasksParser = subParsers.addParser("showTasks").help("Show many coordinator tasks. By default, all tasks are shown, but " + "command-line options can be specified as filters.");
addTargetArgument(showTasksParser);
addJsonArgument(showTasksParser);
MutuallyExclusiveGroup idGroup = showTasksParser.addMutuallyExclusiveGroup();
idGroup.addArgument("--id", "-i").action(append()).type(String.class).dest("taskIds").metavar("TASK_IDS").help("Show only this task ID. This option may be specified multiple times.");
idGroup.addArgument("--id-pattern").action(store()).type(String.class).dest("taskIdPattern").metavar("TASK_ID_PATTERN").help("Only display tasks which match the given ID pattern.");
showTasksParser.addArgument("--state", "-s").type(TaskStateType.class).dest("taskStateType").metavar("TASK_STATE_TYPE").help("Show only tasks in this state.");
Subparser createTaskParser = subParsers.addParser("createTask").help("Create a new task.");
addTargetArgument(createTaskParser);
createTaskParser.addArgument("--id", "-i").action(store()).required(true).type(String.class).dest("taskId").metavar("TASK_ID").help("The task ID to create.");
createTaskParser.addArgument("--spec", "-s").action(store()).required(true).type(String.class).dest("taskSpec").metavar("TASK_SPEC").help("The task spec to create, or a path to a file containing the task spec.");
Subparser stopTaskParser = subParsers.addParser("stopTask").help("Stop a task.");
addTargetArgument(stopTaskParser);
stopTaskParser.addArgument("--id", "-i").action(store()).required(true).type(String.class).dest("taskId").metavar("TASK_ID").help("The task ID to create.");
Subparser destroyTaskParser = subParsers.addParser("destroyTask").help("Destroy a task.");
addTargetArgument(destroyTaskParser);
destroyTaskParser.addArgument("--id", "-i").action(store()).required(true).type(String.class).dest("taskId").metavar("TASK_ID").help("The task ID to destroy.");
Subparser shutdownParser = subParsers.addParser("shutdown").help("Shut down the coordinator.");
addTargetArgument(shutdownParser);
Namespace res = rootParser.parseArgsOrFail(args);
String target = res.getString("target");
CoordinatorClient client = new Builder().maxTries(3).target(target).build();
ZoneOffset localOffset = OffsetDateTime.now().getOffset();
switch(res.getString("command")) {
case "uptime":
{
UptimeResponse uptime = client.uptime();
if (res.getBoolean("json")) {
System.out.println(JsonUtil.toJsonString(uptime));
} else {
System.out.printf("Coordinator is running at %s.%n", target);
System.out.printf("\tStart time: %s%n", dateString(uptime.serverStartMs(), localOffset));
System.out.printf("\tCurrent server time: %s%n", dateString(uptime.nowMs(), localOffset));
System.out.printf("\tUptime: %s%n", durationString(uptime.nowMs() - uptime.serverStartMs()));
}
break;
}
case "status":
{
CoordinatorStatusResponse response = client.status();
if (res.getBoolean("json")) {
System.out.println(JsonUtil.toJsonString(response));
} else {
System.out.printf("Coordinator is running at %s.%n", target);
System.out.printf("\tStart time: %s%n", dateString(response.serverStartMs(), localOffset));
}
break;
}
case "showTask":
{
String taskId = res.getString("taskId");
TaskRequest req = new TaskRequest(taskId);
TaskState taskState = null;
try {
taskState = client.task(req);
} catch (NotFoundException e) {
System.out.printf("Task %s was not found.%n", taskId);
Exit.exit(1);
}
if (res.getBoolean("json")) {
System.out.println(JsonUtil.toJsonString(taskState));
} else {
System.out.printf("Task %s of type %s is %s. %s%n", taskId, taskState.spec().getClass().getCanonicalName(), taskState.stateType(), prettyPrintTaskInfo(taskState, localOffset));
if (taskState instanceof TaskDone) {
TaskDone taskDone = (TaskDone) taskState;
if ((taskDone.error() != null) && (!taskDone.error().isEmpty())) {
System.out.printf("Error: %s%n", taskDone.error());
}
}
if (res.getBoolean("verbose")) {
System.out.printf("Spec: %s%n%n", JsonUtil.toPrettyJsonString(taskState.spec()));
}
if (res.getBoolean("verbose") || res.getBoolean("showStatus")) {
System.out.printf("Status: %s%n%n", JsonUtil.toPrettyJsonString(taskState.status()));
}
}
break;
}
case "showTasks":
{
TaskStateType taskStateType = res.<TaskStateType>get("taskStateType");
List<String> taskIds = new ArrayList<>();
Pattern taskIdPattern = null;
if (res.getList("taskIds") != null) {
for (Object taskId : res.getList("taskIds")) {
taskIds.add((String) taskId);
}
} else if (res.getString("taskIdPattern") != null) {
try {
taskIdPattern = Pattern.compile(res.getString("taskIdPattern"));
} catch (PatternSyntaxException e) {
System.out.println("Invalid task ID regular expression " + res.getString("taskIdPattern"));
e.printStackTrace();
Exit.exit(1);
}
}
TasksRequest req = new TasksRequest(taskIds, 0, 0, 0, 0, Optional.ofNullable(taskStateType));
TasksResponse response = client.tasks(req);
if (taskIdPattern != null) {
TreeMap<String, TaskState> filteredTasks = new TreeMap<>();
for (Map.Entry<String, TaskState> entry : response.tasks().entrySet()) {
if (taskIdPattern.matcher(entry.getKey()).matches()) {
filteredTasks.put(entry.getKey(), entry.getValue());
}
}
response = new TasksResponse(filteredTasks);
}
if (res.getBoolean("json")) {
System.out.println(JsonUtil.toJsonString(response));
} else {
System.out.println(prettyPrintTasksResponse(response, localOffset));
}
if (response.tasks().isEmpty()) {
Exit.exit(1);
}
break;
}
case "createTask":
{
String taskId = res.getString("taskId");
TaskSpec taskSpec = JsonUtil.objectFromCommandLineArgument(res.getString("taskSpec"), TaskSpec.class);
CreateTaskRequest req = new CreateTaskRequest(taskId, taskSpec);
try {
client.createTask(req);
System.out.printf("Sent CreateTaskRequest for task %s.%n", req.id());
} catch (RequestConflictException rce) {
System.out.printf("CreateTaskRequest for task %s got a 409 status code - " + "a task with the same ID but a different specification already exists.%nException: %s%n", req.id(), rce.getMessage());
Exit.exit(1);
}
break;
}
case "stopTask":
{
String taskId = res.getString("taskId");
StopTaskRequest req = new StopTaskRequest(taskId);
client.stopTask(req);
System.out.printf("Sent StopTaskRequest for task %s.%n", taskId);
break;
}
case "destroyTask":
{
String taskId = res.getString("taskId");
DestroyTaskRequest req = new DestroyTaskRequest(taskId);
client.destroyTask(req);
System.out.printf("Sent DestroyTaskRequest for task %s.%n", taskId);
break;
}
case "shutdown":
{
client.shutdown();
System.out.println("Sent ShutdownRequest.");
break;
}
default:
{
System.out.println("You must choose an action. Type --help for help.");
Exit.exit(1);
}
}
}
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