From c7423ee7444b320ffef7f5a36f94b682a4fea919 Mon Sep 17 00:00:00 2001
From: Vladislav Tankov <vdtankov@gmail.com>
Date: Thu, 18 Jul 2024 12:18:14 +0200
Subject: [PATCH] Add hocon module with hocon parsing and update all the gradle

---
 README.md                                     |  1 +
 .../kotlin/tanvd/konfy/hocon/HoconProvider.kt | 20 ++++++++
 .../tanvd/konfy/hocon/HoconProviderTest.kt    | 46 +++++++++++++++++++
 settings.gradle.kts                           |  2 +-
 4 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 konfy-hocon/src/main/kotlin/tanvd/konfy/hocon/HoconProvider.kt
 create mode 100644 konfy-hocon/src/test/kotlin/tanvd/konfy/hocon/HoconProviderTest.kt

diff --git a/README.md b/README.md
index 7907e48..b6a562d 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ Konfy supports plenty of formats with corresponding providers:
 * SSM (konfy-ssm) - support of AWS Simple System Manager parameters
 * KeePass (konfy-keepass) - support of parameters stored in kdbx encrypted files
 * Kara config (konfy-kara) - support of properties config with includes (Kara framework config)
+* HOCON (konfy-hocon) - support of HOCON configuration files
 
 ## Setup
 
diff --git a/konfy-hocon/src/main/kotlin/tanvd/konfy/hocon/HoconProvider.kt b/konfy-hocon/src/main/kotlin/tanvd/konfy/hocon/HoconProvider.kt
new file mode 100644
index 0000000..61597a7
--- /dev/null
+++ b/konfy-hocon/src/main/kotlin/tanvd/konfy/hocon/HoconProvider.kt
@@ -0,0 +1,20 @@
+package tanvd.konfy.hocon
+
+import com.typesafe.config.Config
+import com.typesafe.config.ConfigFactory
+import tanvd.konfy.provider.ConfigProvider
+import java.io.File
+import java.lang.reflect.Type
+
+class HoconProvider(private val file: File) : ConfigProvider() {
+    private val config: Config = ConfigFactory.parseFile(file)
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <N : Any> fetch(key: String, type: Type): N? {
+        return try {
+            config.getAnyRef(key) as N?
+        } catch (e: Exception) {
+            null
+        }
+    }
+}
diff --git a/konfy-hocon/src/test/kotlin/tanvd/konfy/hocon/HoconProviderTest.kt b/konfy-hocon/src/test/kotlin/tanvd/konfy/hocon/HoconProviderTest.kt
new file mode 100644
index 0000000..f3c1b3d
--- /dev/null
+++ b/konfy-hocon/src/test/kotlin/tanvd/konfy/hocon/HoconProviderTest.kt
@@ -0,0 +1,46 @@
+package tanvd.konfy.hocon
+
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+import java.io.File
+
+class HoconProviderTest {
+    private val configProvider
+        get() = HoconProvider(File("src/test/resources/config.conf"))
+
+    @Test
+    fun get_keyExists_gotValue() {
+        val value: String = configProvider.get("first_test")
+        assertThat(value).isEqualTo("test-pass")
+    }
+
+    @Test
+    fun tryGet_keyDoesNotExist_noValue() {
+        val value: String? = configProvider.tryGet("third_test")
+        assertThat(value).isNull()
+    }
+
+    @Test
+    fun get_keyInTable_gotValue() {
+        val value: String = configProvider.get("section.fourth_test")
+        assertThat(value).isEqualTo("test-pass")
+    }
+
+    @Test
+    fun get_arrayValue_gotValue() {
+        val value: Array<String> = configProvider.get("section.arena-letters")
+        assertThat(value).containsAll(listOf("All", "King", "Edwards", "Horses", "Can", "Move", "Bloody", "Fast"))
+    }
+
+    @Test
+    fun get_nestedArrayValue_gotValue() {
+        val value: Array<Array<String>> = configProvider.get("section.array-in-array")
+        assertThat(value).isDeepEqualTo(arrayOf(arrayOf("123"), arrayOf("456")))
+    }
+
+    @Test
+    fun get_nestedTable_gotValue() {
+        val value: String = configProvider.get("section.nested.best-bike-ever")
+        assertThat(value).isEqualTo("KTM Duke 390")
+    }
+}
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 980e987..11feca5 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -6,4 +6,4 @@ include(":konfy-keepass")
 include(":konfy-ssm")
 include(":konfy-kara")
 include(":konfy-k8s")
-
+include(":konfy-hocon")