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use std::rc::Rc;
use fallible_iterator::{FallibleIterator, IntoFallibleIterator};
use super::super::common::{ContainerRef, IntoVerified, Refresh, ResourceIterator, ResourceQuery};
use super::super::session::Session;
use super::super::utils::Query;
use super::super::{Error, ErrorKind, Result};
use super::objects::{Object, ObjectQuery};
use super::{api, protocol};
#[derive(Clone, Debug)]
pub struct ContainerQuery {
session: Rc<Session>,
query: Query,
can_paginate: bool,
}
#[derive(Clone, Debug)]
pub struct Container {
session: Rc<Session>,
inner: protocol::Container,
}
impl Container {
pub(crate) fn new(session: Rc<Session>, inner: protocol::Container) -> Container {
Container { session, inner }
}
pub(crate) fn create<Id: AsRef<str>>(session: Rc<Session>, name: Id) -> Result<Container> {
let c_id = name.as_ref();
let _ = api::create_container(&session, c_id)?;
let inner = api::get_container(&session, c_id)?;
Ok(Container::new(session, inner))
}
pub(crate) fn load<Id: AsRef<str>>(session: Rc<Session>, name: Id) -> Result<Container> {
let inner = api::get_container(&session, name)?;
Ok(Container::new(session, inner))
}
pub fn delete(self, delete_objects: bool) -> Result<()> {
if delete_objects {
debug!("Deleting all objects from container {}", self.inner.name);
let mut iter = self.find_objects().into_iter();
while let Some(obj) = iter.next()? {
obj.delete().or_else(|err| {
if err.kind() == ErrorKind::ResourceNotFound {
Ok(())
} else {
Err(err)
}
})?;
}
}
api::delete_container(&self.session, self.inner.name)
}
#[inline]
pub fn find_objects(&self) -> ObjectQuery {
ObjectQuery::new(self.session.clone(), self.inner.name.clone())
}
#[inline]
pub fn list_objects(&self) -> Result<Vec<Object>> {
self.find_objects().all()
}
transparent_property! {
#[doc = "Total size of the container."]
bytes: u64
}
transparent_property! {
#[doc = "Container name."]
name: ref String
}
transparent_property! {
#[doc = "Number of objects in the container."]
object_count: u64
}
}
impl Refresh for Container {
fn refresh(&mut self) -> Result<()> {
self.inner = api::get_container(&self.session, &self.inner.name)?;
Ok(())
}
}
impl ContainerQuery {
pub(crate) fn new(session: Rc<Session>) -> ContainerQuery {
ContainerQuery {
session,
query: Query::new(),
can_paginate: true,
}
}
pub fn with_marker<T: Into<String>>(mut self, marker: T) -> Self {
self.can_paginate = false;
self.query.push_str("marker", marker);
self
}
pub fn with_limit(mut self, limit: usize) -> Self {
self.can_paginate = false;
self.query.push("limit", limit);
self
}
query_filter! {
#[doc = "Filter by prefix."]
with_prefix -> prefix
}
pub fn into_iter(self) -> ResourceIterator<ContainerQuery> {
debug!("Fetching containers with {:?}", self.query);
ResourceIterator::new(self)
}
pub fn all(self) -> Result<Vec<Container>> {
self.into_iter().collect()
}
pub fn one(mut self) -> Result<Container> {
debug!("Fetching one container with {:?}", self.query);
if self.can_paginate {
self.query.push("limit", 2);
}
self.into_iter().one()
}
}
impl ResourceQuery for ContainerQuery {
type Item = Container;
const DEFAULT_LIMIT: usize = 100;
fn can_paginate(&self) -> Result<bool> {
Ok(self.can_paginate)
}
fn extract_marker(&self, resource: &Self::Item) -> String {
resource.name().clone()
}
fn fetch_chunk(&self, limit: Option<usize>, marker: Option<String>) -> Result<Vec<Self::Item>> {
let query = self.query.with_marker_and_limit(limit, marker);
Ok(api::list_containers(&self.session, query)?
.into_iter()
.map(|item| Container {
session: self.session.clone(),
inner: item,
})
.collect())
}
}
impl IntoFallibleIterator for ContainerQuery {
type Item = Container;
type Error = Error;
type IntoFallibleIter = ResourceIterator<ContainerQuery>;
fn into_fallible_iter(self) -> Self::IntoFallibleIter {
self.into_iter()
}
}
impl From<Container> for ContainerRef {
fn from(value: Container) -> ContainerRef {
ContainerRef::new_verified(value.inner.name)
}
}
#[cfg(feature = "object-storage")]
impl IntoVerified for ContainerRef {}