reading of schematic file

src/main/java/me/youhavetrouble/blockedit/SchematicHandler.java

@@ -1,8 +1,13 @@
 package me.youhavetrouble.blockedit;
 
 import me.youhavetrouble.blockedit.util.Clipboard;
+import net.querz.nbt.io.NBTInputStream;
+import net.querz.nbt.io.NamedTag;
+import net.querz.nbt.tag.CompoundTag;
+import net.querz.nbt.tag.Tag;
 
-import java.io.File;
+import java.io.*;
+import java.util.zip.GZIPInputStream;
 
 public class SchematicHandler {
 
@@ -31,9 +36,25 @@ public class SchematicHandler {
     /**
      * Loads a schematic from the schematics directory
      * @param schematicName Name of the schematic
-     * @return Clipboard object containing the schematic
+     * @return Clipboard object containing the schematic. Null if schematic does not exist
      */
     public Clipboard loadSchematic(String schematicName) {
+        File schematicFile = new File(plugin.getDataFolder(), "schematics/" + schematicName + ".schematic");
+
+        try (DataInputStream dis = new DataInputStream(new BufferedInputStream(new GZIPInputStream(new FileInputStream(schematicFile))))) {
+            NamedTag tag = new NBTInputStream(dis).readTag(Tag.DEFAULT_MAX_DEPTH);
+
+            if (tag == null) return null;
+            if (!(tag.getTag() instanceof CompoundTag compoundTag)) return null;
+
+            plugin.getLogger().info(compoundTag.get("Width").toString());
+            plugin.getLogger().info(compoundTag.get("Height").toString());
+            plugin.getLogger().info(compoundTag.get("Length").toString());
+
+        } catch (IOException e) {
+            return null;
+        }
+
         return null;
     }