Update GroupChatResource.java

src/main/java/resources/GroupChatResource.java

 package resources;
 
+import dao.GroupChatDAO;
 import data.GroupChat;
+import data.Message;
+import data.User;
 
 import javax.ws.rs.*;
 import javax.ws.rs.core.MediaType;
+import java.util.ArrayList;
 
 /**
  * GroupChat resource exposed at "/groupchat" path
@@ -20,7 +24,45 @@ public class GroupChatResource {
     @Path ("{groupChatId}")
     @Produces (MediaType.APPLICATION_JSON)
     public GroupChat getGroupChat(@PathParam("groupChatId") int groupChatId){
-        return null;
+        GroupChatDAO gcd = new GroupChatDAO();
+        GroupChat gc = gcd.getGroupChat(groupChatId);
+        gc.setMessageList(gcd.getGroupChatMessages(groupChatId));
+        gc.setUserList(gcd.getGroupChatUsers(groupChatId));
+        return gc;
     }
 
+
+    @GET
+    @Path ("user/{userId}")
+    @Produces (MediaType.APPLICATION_JSON)
+    public ArrayList<GroupChat> getGroupChatByUserId(@PathParam("userId") int userId){
+        GroupChatDAO gcd = new GroupChatDAO();
+        return gcd.getGroupChatByUserId(userId);
+    }
+
+    @POST
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces(MediaType.APPLICATION_JSON)
+    public GroupChat postGroupChat(GroupChat gc){
+        GroupChatDAO gcd = new GroupChatDAO();
+        return gcd.addGroupChat(gc);
+    }
+
+    @GET
+    @Path("{groupChatId}/message")
+    @Produces (MediaType.APPLICATION_JSON)
+    public ArrayList<Message> getGroupChatMessage(@PathParam("groupChatId") int groupChatId){
+        GroupChatDAO gcd = new GroupChatDAO();
+        return gcd.getGroupChatMessages(groupChatId);
+    }
+
+    @POST
+    @Path("{groupChatId}/message")
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Produces (MediaType.APPLICATION_JSON)
+    public Message postMessage(@PathParam("groupChatId") int groupChatId, Message
+            message){
+        GroupChatDAO gcd = new GroupChatDAO();
+        return gcd.addMessage(groupChatId, message);
+    }
 }