feat: add neo4j to docker-compose.yml

docker-compose.yml

@@ -1,12 +1,24 @@
 version: "3"
 services:
   local-database:
-    image: "postgres:15.2"
+    image: postgres:15.2
     env_file:
       - postgres.env
     ports:
       - "5432:5432"
     volumes:
       - pg-volume:/var/lib/postgresql/data
+  neo4j:
+    image: neo4j:5.6.0
+    container_name: neo4j
+    env_file:
+      - neo4j.env
+    ports:
+      - "7474:7474"
+      - "7687:7687"
+    volumes:
+      - neo4j-volume:/data
+      - neo4j-volume:/logs
 volumes:
   pg-volume: {}
+  neo4j-volume: {}

neo4j.env

@@ -0,0 +1 @@
+NEO4J_AUTH=neo4j/password

trees/src/main/kotlin/bst/db/controllers/Neo4jController.kt

@@ -10,11 +10,16 @@ import bst.nodes.RBTNode.Color
 import org.neo4j.ogm.config.Configuration
 import org.neo4j.ogm.session.SessionFactory
 
-class Neo4jController(config: Configuration) {
+class Neo4jController {
+    private val config = Configuration.Builder()
+        .uri("bolt://localhost")
+        .credentials("neo4j", "password")
+        .build()
     private val sessionFactory = SessionFactory(config, "bst")
     private val session = sessionFactory.openSession()
 
 
+
     private fun RBTNode<*, *>?.toSerializableNode(): SerializableNode? {
         if (this == null) {
             return null
@@ -88,18 +93,21 @@ class Neo4jController(config: Configuration) {
         )
     }
 
-    fun loadDeserialized(name: String): RedBlackTree<Int, String> {
-        val tree = getTree(name)
+    fun getTree(name: String): RedBlackTree<Int, String> {
+        val tree = loadTree(name)
         return deserializeTree(tree.toSerializableTree())
     }
 
     //  Could be useful for underlying logic of GUI
+    /*
     fun loadSerialized(name: String): SerializableTree {
         val tree = getTree(name)
         return tree.toSerializableTree()
     }
 
-    private fun getTree(name: String): TreeEntity {
+     */
+
+    private fun loadTree(name: String): TreeEntity {
         return session.queryForObject(
             TreeEntity::class.java,
             "MATCH (n)-[r *1..]-(m) " + "WHERE n.treeName = \$name RETURN n, r, m",
@@ -110,4 +118,3 @@ class Neo4jController(config: Configuration) {
     fun getNames() = session.query("MATCH (n: TreeEntity) RETURN n.treeName", mapOf<String, String>())
         .flatMap { it.values.map { value -> value.toString() } }
 }
-