Add initial version of serialisation to Song and Format.

nb-configuration.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project-shared-configuration>
+    <!--
+This file contains additional configuration written by modules in the NetBeans IDE.
+The configuration is intended to be shared among all the users of project and
+therefore it is assumed to be part of version control checkout.
+Without this configuration present, some functionality in the IDE may be limited or fail altogether.
+-->
+    <properties xmlns="http://www.netbeans.org/ns/maven-properties-data/1">
+        <!--
+Properties that influence various parts of the IDE, especially code formatting and the like. 
+You can copy and paste the single properties, into the pom.xml file and the IDE will pick them up.
+That way multiple projects can share the same settings (useful for formatting rules for example).
+Any value defined here will override the pom.xml file value but is only applicable to the current project.
+-->
+        <netbeans.hint.license>gpl30</netbeans.hint.license>
+    </properties>
+</project-shared-configuration>

src/main/java/moe/nekojimi/chords/Format.java

@@ -5,6 +5,8 @@
  */
 package moe.nekojimi.chords;
 
+import com.amihaiemil.eoyaml.Yaml;
+import com.amihaiemil.eoyaml.YamlMapping;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -31,6 +33,26 @@ class Format
         this.note = note;
     }
 
+    public static Format fromYaml(YamlMapping yaml)
+    {
+        Format format = new Format(
+                yaml.string("code"),
+                yaml.string("extension"),
+                yaml.string("resolution"),
+                yaml.string("note"));
+        return format;
+    }
+
+    public YamlMapping toYaml()
+    {
+        return Yaml.createYamlMappingBuilder()
+                .add("code", code)
+                .add("extension", extension)
+                .add("resolution", resolution)
+                .add("note", note)
+                .build();
+    }
+
     public boolean isAudioOnly()
     {
         return resolution.trim().toLowerCase().contains("audio only");

src/main/java/moe/nekojimi/chords/Song.java

@@ -5,7 +5,12 @@
  */
 package moe.nekojimi.chords;
 
+import com.amihaiemil.eoyaml.Yaml;
+import com.amihaiemil.eoyaml.YamlMapping;
+import com.amihaiemil.eoyaml.YamlSequence;
+import com.amihaiemil.eoyaml.YamlSequenceBuilder;
 import java.io.File;
+import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.List;
@@ -32,6 +37,44 @@ public class Song
         this.url = url;
     }
 
+    public YamlMapping toYaml()
+    {
+        YamlSequenceBuilder build = Yaml.createYamlSequenceBuilder();
+
+        for (Format format : formats)
+            build = build.add(format.toYaml());
+
+        return Yaml.createYamlMappingBuilder()
+                .add("title", title)
+                .add("url", url.toExternalForm())
+                .add("location", location.getAbsolutePath())
+                .add("num", Integer.toString(number))
+                .add("formats", build.build())
+                .add("requestedBy", requestedBy)
+                .add("requestedIn", requestedIn)
+                .add("kept", Boolean.toString(kept))
+                .build();
+    }
+
+    public static Song fromYaml(YamlMapping map) throws MalformedURLException
+    {
+        Song song = new Song(new URL(map.string("url")));
+        song.setArtist(map.string("artist"));
+        song.setLocation(new File(map.string("location")));
+        song.setNumber(map.integer("num"));
+        song.setKept(Boolean.parseBoolean(map.string("kept")));
+        song.setRequestedBy(map.string("requestedBy"));
+        song.setRequestedIn(map.string("requestedIn"));
+
+        List<Format> formats = new ArrayList<>();
+        YamlSequence formatSeq = map.yamlSequence("formats");
+        for (int i = 0; i < formats.size(); i++)
+            formats.add(Format.fromYaml(formatSeq.yamlMapping(i)));
+        song.setFormats(formats);
+
+        return song;
+    }
+
     public String getTitle()
     {
         return title;
@@ -148,4 +191,5 @@ public class Song
         return formats.get(0);
     }
 
+
 }