diff --git a/src/main/scala/app/RepositoryViewerServlet.scala b/src/main/scala/app/RepositoryViewerServlet.scala
index 99add05..6bff314 100644
--- a/src/main/scala/app/RepositoryViewerServlet.scala
+++ b/src/main/scala/app/RepositoryViewerServlet.scala
@@ -15,17 +15,50 @@
 import org.eclipse.jgit.revwalk.RevWalk
 
 // TODO Should models move to other package?
+/**
+ * The repository data.
+ * 
+ * @param owner the user name of the repository owner
+ * @param repository the repository name
+ * @param url the repository URL
+ * @param branchList the list of branch names
+ * @param tags the list of tags
+ */
 case class RepositoryInfo(owner: String, name: String, url: String, branchList: List[String], tags: List[String])
 
+/**
+ * The file data for the file list of the repository viewer.
+ * 
+ * @param id the object id
+ * @param isDirectory whether is it directory
+ * @param name the file (or directory) name
+ * @param time the last modified time
+ * @param message the last commit message
+ * @param committer the last committer name
+ */
 case class FileInfo(id: ObjectId, isDirectory: Boolean, name: String, time: Date, message: String, committer: String)
 
+/**
+ * The commit data.
+ * 
+ * @param id the commit id
+ * @param time the commit time
+ * @param committer  the commiter name
+ * @param message the commit message
+ */
 case class CommitInfo(id: String, time: Date, committer: String, message: String){
   def this(rev: org.eclipse.jgit.revwalk.RevCommit) = 
     this(rev.getName, rev.getCommitterIdent.getWhen, rev.getCommitterIdent.getName, rev.getFullMessage)
 }
 
 case class DiffInfo(changeType: ChangeType, oldPath: String, newPath: String, oldContent: Option[String], newContent: Option[String])
-  
+
+/**
+ * The file content data for the file content view of the repository viewer.
+ * 
+ * @param viewType "image", "large" or "other"
+ * @param content the string content
+ */
 case class ContentInfo(viewType: String, content: Option[String])
 
 /**
@@ -38,6 +71,7 @@
    */
   get("/:owner") {
     val owner = params("owner")
+    
     html.user(owner, getRepositories(owner).map(JGitUtil.getRepositoryInfo(owner, _, servletContext)))
   }