From f0702c01ee097c327b1d37978794705c55451290 Mon Sep 17 00:00:00 2001
From: William Brown <william@blackhats.net.au>
Date: Mon, 12 Nov 2018 16:51:45 +1300
Subject: [PATCH] Initial structures for schema

---
 src/lib.rs    |  1 +
 src/schema.rs | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 src/schema.rs

diff --git a/src/lib.rs b/src/lib.rs
index 252dafd71..837d508f3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -28,3 +28,4 @@ pub mod event;
 pub mod filter;
 pub mod proto;
 pub mod server;
+pub mod schema;
diff --git a/src/schema.rs b/src/schema.rs
new file mode 100644
index 000000000..62311667c
--- /dev/null
+++ b/src/schema.rs
@@ -0,0 +1,70 @@
+use std::collections::HashMap;
+
+// representations of schema that confines object types, classes
+// and attributes. This ties in deeply with "Entry".
+// This only defines the types, and how they are represented. For
+// application and validation of the schema, see "Entry".
+//
+// In the future this will parse/read it's schema from the db
+// but we have to bootstrap with some core types.
+
+pub enum IndexType {
+    EQUALITY,
+    PRESENCE,
+    SUBSTRING,
+}
+
+pub enum SyntaxType {
+    UTF8STRING,
+}
+
+pub struct SchemaAttribute {
+    name: String,
+    description: String,
+    system: bool,
+    multivalue: bool,
+    index: Vec<IndexType>,
+    syntax: SyntaxType,
+}
+
+pub struct SchemaClass {
+    name: String,
+    descriptions: String,
+    systemmay: Vec<SchemaAttribute>,
+    may: Vec<SchemaAttribute>,
+    systemmust: Vec<SchemaAttribute>,
+    must: Vec<SchemaAttribute>,
+}
+
+pub struct Schema {
+    // We contain sets of classes and attributes.
+    classes: HashMap<String, SchemaClass>,
+    attributes: HashMap<String, SchemaAttribute>,
+}
+
+impl Schema {
+    pub fn new() -> Self {
+        //
+        // Bootstrap in definitions of our own schema types
+        Schema {
+            classes: HashMap::new(),
+            attributes: HashMap::new(),
+        }
+    }
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::{Schema, SchemaClass, SchemaAttribute};
+    use super::super::entry::Entry;
+
+    #[test]
+    fn test_schema_attribute_simple() {
+        // Test basic functions of simple attributes
+    }
+
+    #[test]
+    fn test_schema_simple() {
+    }
+}