Add debug hook

2 files changed, 115 insertions, 0 deletions

diff --git a/libimagstorestdhook/src/debug.rs b/libimagstorestdhook/src/debug.rs
new file mode 100644
index 00000000..2a68529e
--- /dev/null
+++ b/libimagstorestdhook/src/debug.rs
@@ -0,0 +1,113 @@
+use toml::Value;
+
+use libimagstore::hook::Hook;
+use libimagstore::hook::accessor::HookDataAccessor;
+use libimagstore::hook::accessor::HookDataAccessorProvider;
+use libimagstore::hook::position::HookPosition;
+
+use self::accessor::DebugHookAccessor as DHA;
+
+#[derive(Debug)]
+pub struct DebugHook {
+    position: HookPosition,
+    accessor: DHA,
+}
+
+impl DebugHook {
+
+    pub fn new(pos: HookPosition) -> DebugHook {
+        DebugHook {
+            position: pos.clone(),
+            accessor: DHA::new(pos),
+        }
+    }
+
+}
+
+impl Hook for DebugHook {
+
+    fn name(&self) -> &'static str {
+        "stdhook_debug"
+    }
+
+    fn set_config(&mut self, _: &Value) {
+        () // We are not configurable here.
+    }
+
+}
+
+impl HookDataAccessorProvider for DebugHook {
+
+    fn accessor(&self) -> HookDataAccessor {
+        use libimagstore::hook::position::HookPosition as HP;
+        use libimagstore::hook::accessor::HookDataAccessor as HDA;
+
+        match self.position {
+            HP::PreCreate    => HDA::StoreIdAccess(&self.accessor),
+            HP::PostCreate   => HDA::MutableAccess(&self.accessor),
+            HP::PreRetrieve  => HDA::StoreIdAccess(&self.accessor),
+            HP::PostRetrieve => HDA::MutableAccess(&self.accessor),
+            HP::PreUpdate    => HDA::MutableAccess(&self.accessor),
+            HP::PostUpdate   => HDA::MutableAccess(&self.accessor),
+            HP::PreDelete    => HDA::StoreIdAccess(&self.accessor),
+            HP::PostDelete   => HDA::StoreIdAccess(&self.accessor),
+        }
+    }
+
+}
+
+pub mod accessor {
+    use std::ops::Deref;
+
+    use libimagstore::storeid::StoreId;
+    use libimagstore::store::FileLockEntry;
+    use libimagstore::hook::result::HookResult;
+    use libimagstore::hook::accessor::MutableHookDataAccessor;
+    use libimagstore::hook::accessor::NonMutableHookDataAccessor;
+    use libimagstore::hook::accessor::StoreIdAccessor;
+    use libimagstore::hook::position::HookPosition;
+
+    #[derive(Debug)]
+    pub struct DebugHookAccessor {
+        position: HookPosition,
+    }
+
+    impl DebugHookAccessor {
+
+        pub fn new(position: HookPosition) -> DebugHookAccessor {
+            DebugHookAccessor {
+                position: position,
+            }
+        }
+
+    }
+
+    impl StoreIdAccessor for DebugHookAccessor {
+
+        fn access(&self, id: &StoreId) -> HookResult<()> {
+            debug!("[DEBUG HOOK]: {:?}", id);
+            Ok(())
+        }
+
+    }
+
+    impl MutableHookDataAccessor for DebugHookAccessor {
+
+        fn access_mut(&self, fle: &mut FileLockEntry) -> HookResult<()> {
+            debug!("[DEBUG HOOK] {:?}", fle.deref().deref());
+            Ok(())
+        }
+
+    }
+
+    impl NonMutableHookDataAccessor for DebugHookAccessor {
+
+        fn access(&self, fle: &FileLockEntry) -> HookResult<()> {
+            debug!("[DEBUG HOOK] {:?}", fle.deref().deref());
+            Ok(())
+        }
+
+    }
+
+}
+
diff --git a/libimagstorestdhook/src/lib.rs b/libimagstorestdhook/src/lib.rs
index 880c1231..e9394024 100644
--- a/libimagstorestdhook/src/lib.rs
+++ b/libimagstorestdhook/src/lib.rs
@@ -3,3 +3,5 @@ extern crate toml;
 
 extern crate libimagstore;
 
+pub mod debug;
+