Struct UserGroupInformation

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pub struct UserGroupInformation { /* private fields */ }
Expand description

User and group information for Hadoop. This class provides methods to determine the user’s username and groups. It supports both the Windows, Unix and Kerberos login modules.

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impl UserGroupInformation

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pub fn get_current_user() -> Result<Self>

Return the current user, including any doAs in the current stack.

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pub fn get_login_user() -> Result<Self>

Get the currently logged in user. If no explicit login has occurred, the user will automatically be logged in with either kerberos credentials if available, or as the local OS user, based on security settings.

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pub fn create_proxy_user(_user: &str, real_user: &Self) -> Self

Create a proxy user using username of the effective user and the ugi of the real user.

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pub fn get_short_user_name(&self) -> String

Get the user’s login name.

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pub fn get_user_name(&self) -> String

Get the user’s full principal name.

Trait Implementations§

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impl Clone for UserGroupInformation

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fn clone(&self) -> UserGroupInformation

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for UserGroupInformation

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.