imag/libimagannotation/src/annotation.rs

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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
use libimagstore::store::Store;
use libimagstore::store::FileLockEntry;
use libimagstore::storeid::StoreId;
use result::Result;
use error::AnnotationErrorKind as AEK;
use module_path::ModuleEntryPath;
pub trait Annotateable {
/// Add an annotation to `Self`, that is a `FileLockEntry` which is linked to `Self` (link as in
/// libimagentrylink).
///
/// This `Annotation` is stored in the Store itself.
fn annotate(&self, store: &Store) -> Result<Annotation> {
self.annotate_with_path_generator(store, DefaultAnnotationPathGenerator::new())
}
/// Add an annotation to `Self`, that is a `FileLockEntry` which is linked to `Self` (link as in
/// libimagentrylink).
///
/// This `Annotation` is stored in the Store itself.
///
/// The `pg` is a AnnotationPathGenerator object which is used to generate a StoreId
fn annotate_with_path_generator(&self, store: &Store, pg: &AnnotationPathGenerator) -> Result<Annotation>;
}
/// A AnnotationPathGenerator generates a unique path for the annotation to be generated.
pub trait AnnotationPathGenerator {
fn generate_annotation_path(&self) -> Result<StoreId>;
}
/// The DefaultAnnotationPathGenerator generates unique StoreIds for Annotations, where the
/// collection the annotations are stored in is `/annotation/`.
pub struct DefaultAnnotationPathGenerator;
impl AnnotationPathGenerator for DefaultAnnotationPathGenerator {
fn generate_annotation_path(&self) -> Result<StoreId> {
let id = Uuid::new_v4();
ModuleEntryPath::new(format!("{}", id)).map_err_into(AEK::StoreIdGenerationError)
}
}
pub struct Annotation<'a>(FileLockEntry<'a>);
impl Annotateable for FileLockEntry {
fn annotate_with_path_generator(&self, store: &Store, pg: &AnnotationPathGenerator)
-> Result<Annotation>
{
}
}