io.greptime

Class Util

java.lang.Object

io.greptime.Util

public final class Util
extends Object

Util for GreptimeDB Ingester.

Constructor Summary

Constructors

Constructor and Description
Util()

Method Summary

Modifier and Type	Method and Description
static int	autoReportPeriodMin() Auto report self period.
static String	clientVersion() Returns the version of this client.
static <U> CompletableFuture<U>	completedCf(U value) Returns a new CompletableFuture that is already completed with the given value.
static <U> CompletableFuture<U>	errorCf(Throwable t) Returns a new CompletableFuture that is already exceptionally with the given error.
static SharedScheduledPool	getSharedScheduledPool(String name, int workers) Create a shared scheduler pool with the given name.
static boolean	isBulkWriteLogging() Whether to output concise bulk write logs.
static boolean	isWriteLogging() Whether to output concise write logs.
static Properties	loadProps(ClassLoader loader, String name)
static long	randomInitialDelay(long delay)
static boolean	resetBulkWriteLogging() See isBulkWriteLogging() Reset `bulkWriteLogging`, set to the opposite of the old value.
static boolean	resetWriteLogging() See isWriteLogging() Reset `writeLogging`, set to the opposite of the old value.
static void	scheduleDisplaySelf(Display display, Display.Printer printer) Only used to schedule to display the self of client.
static boolean	shouldNotRetry(Err err)
static boolean	shouldRetry(Err err)
static <V> Observer<V>	toObserver(CompletableFuture<V> future)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Util

public Util()

Method Detail

isWriteLogging

public static boolean isWriteLogging()

Whether to output concise write logs.

Returns:

true or false

resetWriteLogging

public static boolean resetWriteLogging()

See isWriteLogging() Reset `writeLogging`, set to the opposite of the old value.

Returns:

old value

isBulkWriteLogging

public static boolean isBulkWriteLogging()

Whether to output concise bulk write logs.

Returns:

true or false

resetBulkWriteLogging

public static boolean resetBulkWriteLogging()

See isBulkWriteLogging() Reset `bulkWriteLogging`, set to the opposite of the old value.

Returns:

old value

autoReportPeriodMin

public static int autoReportPeriodMin()

Auto report self period.

Returns:

period with minutes

scheduleDisplaySelf

public static void scheduleDisplaySelf(Display display,
                                       Display.Printer printer)

Only used to schedule to display the self of client.

Parameters:

display - display

printer - to print the display info

getSharedScheduledPool

public static SharedScheduledPool getSharedScheduledPool(String name,
                                                         int workers)

Create a shared scheduler pool with the given name.

Parameters:

name - scheduled pool's name

workers - the num of workers

Returns:

new scheduler poll instance

completedCf

public static <U> CompletableFuture<U> completedCf(U value)

Returns a new CompletableFuture that is already completed with the given value. Same as CompletableFuture.completedFuture(Object), only rename the method.

Type Parameters:

U - the type of the value

Parameters:

value - the given value

Returns:

the completed CompletableFuture

errorCf

public static <U> CompletableFuture<U> errorCf(Throwable t)

Returns a new CompletableFuture that is already exceptionally with the given error.

Type Parameters:

U - the type of the value

Parameters:

t - the given exception

Returns:

the exceptionally CompletableFuture

toObserver

public static <V> Observer<V> toObserver(CompletableFuture<V> future)

randomInitialDelay

public static long randomInitialDelay(long delay)

shouldNotRetry

public static boolean shouldNotRetry(Err err)

shouldRetry

public static boolean shouldRetry(Err err)

clientVersion

public static String clientVersion()

Returns the version of this client.

Returns:

the version of this client

loadProps

public static Properties loadProps(ClassLoader loader,
                                   String name)
                            throws IOException

Throws:

IOException