Add marker for unknown metadata.

[sonitus.git] / src / main / java / net / pterodactylus / sonitus / data / Metadata.java

diff --git a/src/main/java/net/pterodactylus/sonitus/data/Metadata.java b/src/main/java/net/pterodactylus/sonitus/data/Metadata.java
index 9c3f85e..61c0100 100644 (file)
--- a/src/main/java/net/pterodactylus/sonitus/data/Metadata.java
+++ b/src/main/java/net/pterodactylus/sonitus/data/Metadata.java
@@ -30,6 +30,9 @@ import com.google.common.base.Optional;
  */
 public class Metadata {
 
+       /** Marker for unknown metadata. */
+       public static final Metadata UNKNOWN = new Metadata();
+
        /** The format metadata. */
        private final FormatMetadata formatMetadata;
 
@@ -202,6 +205,37 @@ public class Metadata {
                return new Metadata(formatMetadata, contentMetadata.title(title));
        }
 
+       /**
+        * Returns the comment of the content, if any.
+        *
+        * @return The comment of the content
+        */
+       public Optional<String> comment() {
+               return contentMetadata.comment();
+       }
+
+       /**
+        * Returns new metadata with the same attributes as this metadata but with the
+        * comment changed to the given comment.
+        *
+        * @param comment
+        *              The new comment
+        * @return The new metadata
+        */
+       public Metadata comment(String comment) {
+               return new Metadata(formatMetadata, contentMetadata.comment(comment));
+       }
+
+       /**
+        * Returns the title with the comment appended in parantheses, if a comment has
+        * been set.
+        *
+        * @return The title with the comment appended
+        */
+       public String fullTitle() {
+               return String.format("%s%s", title(), comment().isPresent() ? String.format(" (%s)", comment().get()) : "");
+       }
+
        //
        // OBJECT METHODS
        //
@@ -222,7 +256,7 @@ public class Metadata {
 
        @Override
        public String toString() {
-               return String.format("%s: %s", formatMetadata, contentMetadata);
+               return String.format("%s%s%s", formatMetadata, contentMetadata.toString().length() > 0 ? ": " : "", contentMetadata);
        }
 
 }