Convert Lyrics domain entity to kotlin.

Signed-off-by: Yahor Berdnikau <egorr.berd@gmail.com>

ultrasonic/src/main/java/org/moire/ultrasonic/domain/Lyrics.java

@@ -1,62 +0,0 @@
-/*
- This file is part of Subsonic.
-
- Subsonic is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- Subsonic 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with Subsonic.  If not, see <http://www.gnu.org/licenses/>.
-
- Copyright 2010 (C) Sindre Mehus
- */
-package org.moire.ultrasonic.domain;
-
-/**
- * Song lyrics.
- *
- * @author Sindre Mehus
- */
-public class Lyrics
-{
-
-	private String artist;
-	private String title;
-	private String text;
-
-	public String getArtist()
-	{
-		return artist;
-	}
-
-	public void setArtist(String artist)
-	{
-		this.artist = artist;
-	}
-
-	public String getTitle()
-	{
-		return title;
-	}
-
-	public void setTitle(String title)
-	{
-		this.title = title;
-	}
-
-	public String getText()
-	{
-		return text;
-	}
-
-	public void setText(String text)
-	{
-		this.text = text;
-	}
-}

ultrasonic/src/main/kotlin/org/moire/ultrasonic/domain/APILyricsConverter.kt

@@ -5,8 +5,8 @@ package org.moire.ultrasonic.domain
 
 import org.moire.ultrasonic.api.subsonic.models.Lyrics as APILyrics
 
-fun APILyrics.toDomainEntity(): Lyrics = Lyrics().apply {
-    artist = this@toDomainEntity.artist
-    title = this@toDomainEntity.title
+fun APILyrics.toDomainEntity(): Lyrics = Lyrics(
+    artist = this@toDomainEntity.artist,
+    title = this@toDomainEntity.title,
     text = this@toDomainEntity.text
-}
+)

ultrasonic/src/main/kotlin/org/moire/ultrasonic/domain/Lyrics.kt

@@ -0,0 +1,10 @@
+package org.moire.ultrasonic.domain
+
+/**
+ * Song lyrics.
+ */
+data class Lyrics(
+        val artist: String? = null,
+        val title: String? = null,
+        val text: String? = null
+)

ultrasonic/src/test/kotlin/org/moire/ultrasonic/domain/APILyricsConverterTest.kt

@@ -2,7 +2,7 @@
 
 package org.moire.ultrasonic.domain
 
-import org.amshove.kluent.`should equal to`
+import org.amshove.kluent.`should equal`
 import org.junit.Test
 import org.moire.ultrasonic.api.subsonic.models.Lyrics
 
@@ -17,9 +17,9 @@ class APILyricsConverterTest {
         val convertedEntity = entity.toDomainEntity()
 
         with(convertedEntity) {
-            artist `should equal to` entity.artist
-            title `should equal to` entity.title
-            text `should equal to` entity.text
+            artist `should equal` entity.artist
+            title `should equal` entity.title
+            text `should equal` entity.text
         }
     }
 }