/** * Try to cancel the {@link Promise} and log if {@code logger} is not {@code null} in case this fails. */ public static void tryCancel(Promise<?> p, InternalLogger logger) { if (!p.cancel(false) && logger != null) { Throwable err = p.cause(); if (err == null) { logger.warn("Failed to cancel promise because it has succeeded already: {}", p); } else { logger.warn( "Failed to cancel promise because it has failed already: {}, unnotified cause:", p, err); } } }
/** * Try to mark the {@link Promise} as success and log if {@code logger} is not {@code null} in case this fails. */ public static <V> void trySuccess(Promise<? super V> p, V result, InternalLogger logger) { if (!p.trySuccess(result) && logger != null) { Throwable err = p.cause(); if (err == null) { logger.warn("Failed to mark a promise as success because it has succeeded already: {}", p); } else { logger.warn( "Failed to mark a promise as success because it has failed already: {}, unnotified cause:", p, err); } } }
/** * Try to mark the {@link Promise} as failure and log if {@code logger} is not {@code null} in case this fails. */ public static void tryFailure(Promise<?> p, Throwable cause, InternalLogger logger) { if (!p.tryFailure(cause) && logger != null) { Throwable err = p.cause(); if (err == null) { logger.warn("Failed to mark a promise as failure because it has succeeded already: {}", p, cause); } else { logger.warn( "Failed to mark a promise as failure because it has failed already: {}, unnotified cause: {}", p, ThrowableUtil.stackTraceToString(err), cause); } } }