[−][src]Enum nakadion::consumer::StreamDeadPolicy
Specifies when a stream is considered dead and has to be aborted.
Once a stream is considered dead a reconnect for a new stream will be attempted.
The default is NoFramesFor { seconds: 300 }
FromStr
use nakadion::consumer::StreamDeadPolicy; let policy = "never".parse::<StreamDeadPolicy>().unwrap(); assert_eq!(policy, StreamDeadPolicy::Never); let policy = "no_frames_for_seconds 1".parse::<StreamDeadPolicy>().unwrap(); assert_eq!( policy, StreamDeadPolicy::NoFramesFor { seconds: 1} ); let policy = "no_events_for_seconds 2".parse::<StreamDeadPolicy>().unwrap(); assert_eq!( policy, StreamDeadPolicy::NoEventsFor { seconds: 2} );
JSON is also valid:
use nakadion::consumer::StreamDeadPolicy; let policy = r#""never""#.parse::<StreamDeadPolicy>().unwrap(); assert_eq!(policy, StreamDeadPolicy::Never); let policy = r#"{"no_frames_for":{"seconds": 1}}"#.parse::<StreamDeadPolicy>().unwrap(); assert_eq!( policy, StreamDeadPolicy::NoFramesFor { seconds: 1} ); let policy = r#"{"no_events_for":{"seconds": 2}}"#.parse::<StreamDeadPolicy>().unwrap(); assert_eq!( policy, StreamDeadPolicy::NoEventsFor { seconds: 2} );
Environment variables
Fetching values from the environment uses FromStr
for parsing
Variants (Non-exhaustive)
The stream is never considered dead
The stream is considered dead if no frames (lines) have
been received from Nakadi for seconds
Fields of NoFramesFor
seconds: u32
The stream is considered dead if no events (lines with events) have
been received from Nakadi for seconds
Fields of NoEventsFor
seconds: u32
Implementations
impl StreamDeadPolicy
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pub const ENV_TYPE_NAME: &'static str
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The default name of the environment variable for this type. The name of the environment variable is " STREAM_DEAD_POLICY "
pub fn try_from_env() -> Result<Option<Self>, Error>
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Initialize from the environment.
Returns None
if the value was not found and fails if the value could not be parsed.
The name of the environment variable is "NAKADION_
STREAM_DEAD_POLICY
"
pub fn try_from_env_prefixed<T: Into<String>>(
prefix: T
) -> Result<Option<Self>, Error>
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prefix: T
) -> Result<Option<Self>, Error>
Initialize from the environment.
Returns None
if the value was not found and fails if the value could not be parsed.
The name of the environment variable is "prefix
_
STREAM_DEAD_POLICY
"
The underscore and prefix will be omitted if prefix is empty.
pub fn try_from_env_named<T: AsRef<str>>(
var_name: T
) -> Result<Option<Self>, Error>
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var_name: T
) -> Result<Option<Self>, Error>
Initialize from the environment.
Returns None
if the value was not found and fails if the value could not be parsed.
The name of the environment variable is var_name
.
pub fn try_from_env_type_name() -> Result<Option<Self>, Error>
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Initialize from the environment.
Returns None
if the value was not found and fails if the value could not be parsed.
The name of the environment variable is "
STREAM_DEAD_POLICY
"
pub fn from_env() -> Result<Self, Error>
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Initialize from the environment. Fails if the value was not found or if the value could not be parsed. The name of the environment variable is "NAKADION_ STREAM_DEAD_POLICY "
pub fn from_env_prefixed<T: Into<String>>(prefix: T) -> Result<Self, Error>
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Initialize from the environment.
Fails if the value was not found or if the value could not be parsed.
The name of the environment variable is "prefix
_
STREAM_DEAD_POLICY
"
The underscore and prefix will be omitted if prefix is empty.
pub fn from_env_named<T: AsRef<str>>(var_name: T) -> Result<Self, Error>
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Initialize from the environment.
Fails if the value was not found or if the value could not be parsed.
The name of the environment variable is var_name
.
pub fn from_env_type_name() -> Result<Self, Error>
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Initialize from the environment. Fails if the value was not found or if the value could not be parsed. The name of the environment variable is " STREAM_DEAD_POLICY "
pub fn from_env_opt() -> Option<Self>
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Initialize from the environment.
Returns None
if the value could not be read for any reason.
The name of the environment variable is "NAKADION_
STREAM_DEAD_POLICY
"
pub fn from_env_opt_prefixed<T: Into<String>>(prefix: T) -> Option<Self>
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Initialize from the environment.
Returns None
if the value could not be read for any reason.
The name of the environment variable is "prefix
_
STREAM_DEAD_POLICY
"
The underscore and prefix will be omitted if prefix is empty.
pub fn from_env_opt_named<T: AsRef<str>>(var_name: T) -> Option<Self>
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Initialize from the environment.
Returns None
if the value could not be read for any reason.
The name of the environment variable is var_name
.
pub fn from_env_opt_type_name() -> Option<Self>
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Initialize from the environment.
Returns None
if the value could not be read for any reason.
The name of the environment variable is "
STREAM_DEAD_POLICY
"
pub fn validate(self) -> Result<(), Error>
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Trait Implementations
impl Clone for StreamDeadPolicy
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pub fn clone(&self) -> StreamDeadPolicy
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pub fn clone_from(&mut self, source: &Self)
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impl Copy for StreamDeadPolicy
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impl Debug for StreamDeadPolicy
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impl Default for StreamDeadPolicy
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impl<'de> Deserialize<'de> for StreamDeadPolicy
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pub fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
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__D: Deserializer<'de>,
impl Display for StreamDeadPolicy
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impl Eq for StreamDeadPolicy
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impl FromStr for StreamDeadPolicy
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type Err = Error
The associated error which can be returned from parsing.
pub fn from_str(s: &str) -> Result<Self, Self::Err>
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impl PartialEq<StreamDeadPolicy> for StreamDeadPolicy
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pub fn eq(&self, other: &StreamDeadPolicy) -> bool
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pub fn ne(&self, other: &StreamDeadPolicy) -> bool
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impl Serialize for StreamDeadPolicy
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pub fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
__S: Serializer,
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__S: Serializer,
impl StructuralEq for StreamDeadPolicy
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impl StructuralPartialEq for StreamDeadPolicy
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Auto Trait Implementations
impl RefUnwindSafe for StreamDeadPolicy
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impl Send for StreamDeadPolicy
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impl Sync for StreamDeadPolicy
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impl Unpin for StreamDeadPolicy
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impl UnwindSafe for StreamDeadPolicy
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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T: for<'de> Deserialize<'de>,
impl<Q, K> Equivalent<K> for Q where
K: Borrow<Q> + ?Sized,
Q: Eq + ?Sized,
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K: Borrow<Q> + ?Sized,
Q: Eq + ?Sized,
pub fn equivalent(&self, key: &K) -> bool
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impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
pub unsafe fn deref<'a>(ptr: usize) -> &'a T
pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
pub unsafe fn drop(ptr: usize)
impl<T> SendSyncUnwindSafe for T where
T: Send + Sync + UnwindSafe + ?Sized,
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T: Send + Sync + UnwindSafe + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,