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// Copyright (c) 2015-2016 Chris Palmer <pennstate5013@gmail.com>
// Use of this source code is governed by the LGPLv3 license that can be
// found in the LICENSE file.
//! The fields can be set for enclosure by using the methods under `EnclosureBuilder`.
use errors;
use channels::{Enclosure, EnclosureBuilder};
use mime::Mime;
use utils::string_utils;
impl EnclosureBuilder {
/// Construct a new `EnclosureBuilder` and return default values.
///
/// # Examples
///
/// ```
/// use feed::channels::EnclosureBuilder;
///
/// let enclosure_builder = EnclosureBuilder::new();
/// ```
pub fn new() -> EnclosureBuilder {
EnclosureBuilder::default()
}
/// Set the url that exists under `Enclosure`.
///
/// # Examples
///
/// ```
/// use feed::channels::EnclosureBuilder;
///
/// let url = "http://www.podtrac.com/pts/".to_owned()
/// + "redirect.ogg/traffic.libsyn.com/jnite/linuxactionshowep408.ogg";
/// let mut enclosure_builder = EnclosureBuilder::new();
/// enclosure_builder.url(url.as_ref());
/// ```
pub fn url(&mut self, url: &str) -> &mut EnclosureBuilder {
self.url = url.to_owned();
self
}
/// Set the length that exists under `Enclosure`.
///
/// # Examples
///
/// ```
/// use feed::channels::EnclosureBuilder;
///
/// let mut enclosure_builder = EnclosureBuilder::new();
/// enclosure_builder.length(70772893);
/// ```
pub fn length(&mut self, length: i64) -> &mut EnclosureBuilder {
if length < 0 {
panic!(errors::negative_error("enclosure length", length));
}
self.length = length;
self
}
/// Set the enclosure_type that exists under `Enclosure`.
///
/// # Examples
///
/// ```
/// use feed::channels::EnclosureBuilder;
///
/// let mut enclosure_builder = EnclosureBuilder::new();
/// enclosure_builder.mime_type("audio/ogg");
/// ```
pub fn mime_type(&mut self, mime_type: &str) -> &mut EnclosureBuilder {
self.mime_type = mime_type.to_owned();
self
}
/// Construct the `Enclosure` from the `EnclosureBuilder`.
///
/// # Examples
///
/// ```
/// use feed::channels::EnclosureBuilder;
///
/// let url = "http://www.podtrac.com/pts/redirect.ogg/".to_owned()
/// + "traffic.libsyn.com/jnite/linuxactionshowep408.ogg";
/// let enclosure = EnclosureBuilder::new()
/// .url(url.as_ref())
/// .length(70772893)
/// .mime_type("audio/ogg")
/// .finalize();
/// ```
pub fn finalize(&self) -> Enclosure {
let url_string = self.url.clone();
let url = string_utils::str_to_url(url_string.as_str(), "Enclosure Url");
let mime = self.mime_type.clone();
let mime_type: Mime = mime.parse().expect(errors::str_to_mime_error().as_str());
Enclosure {
url: url,
length: self.length,
mime_type: mime_type,
}
}
}