Use BufferedOutputStream to achieve maximum throughput (#1434)

jme3-core/src/plugins/java/com/jme3/export/binary/BinaryExporter.java

@@ -161,23 +161,23 @@ public class BinaryExporter implements JmeExporter {
 
     public static boolean debug = false;
     public static boolean useFastBufs = true;
-      
+
     public BinaryExporter() {
     }
 
     public static BinaryExporter getInstance() {
         return new BinaryExporter();
     }
-    
+
     /**
      * Saves the object into memory then loads it from memory.
-     * 
+     *
      * Used by tests to check if the persistence system is working.
-     * 
+     *
      * @param <T> The type of savable.
      * @param assetManager AssetManager to load assets from.
      * @param object The object to save and then load.
-     * @return A new instance that has been saved and loaded from the 
+     * @return A new instance that has been saved and loaded from the
      * original object.
      */
     public static <T extends Savable> T saveAndLoad(AssetManager assetManager, T object) {
@@ -203,11 +203,11 @@ public class BinaryExporter implements JmeExporter {
         contentTable.clear();
         locationTable.clear();
         contentKeys.clear();
-        
+
         // write signature and version
         os.write(ByteUtils.convertToBytes(FormatVersion.SIGNATURE));
         os.write(ByteUtils.convertToBytes(FormatVersion.VERSION));
-        
+
         int id = processBinarySavable(object);
 
         // write out tag table
@@ -216,7 +216,7 @@ public class BinaryExporter implements JmeExporter {
         int aliasSize = ((int) FastMath.log(classNum, 256) + 1); // make all
                                                                   // aliases a
                                                                   // fixed width
-        
+
         os.write(ByteUtils.convertToBytes(classNum));
         for (String key : classes.keySet()) {
             BinaryClassObject bco = classes.get(key);
@@ -226,20 +226,20 @@ public class BinaryExporter implements JmeExporter {
                     aliasSize);
             os.write(aliasBytes);
             classTableSize += aliasSize;
-            
+
             // jME3 NEW: Write class hierarchy version numbers
             os.write( bco.classHierarchyVersions.length );
             for (int version : bco.classHierarchyVersions){
                 os.write(ByteUtils.convertToBytes(version));
             }
             classTableSize += 1 + bco.classHierarchyVersions.length * 4;
-            
+
             // write classname size & classname
             byte[] classBytes = key.getBytes();
             os.write(ByteUtils.convertToBytes(classBytes.length));
             os.write(classBytes);
             classTableSize += 4 + classBytes.length;
-            
+
             // for each field, write alias, type, and name
             os.write(ByteUtils.convertToBytes(bco.nameFields.size()));
             for (String fieldName : bco.nameFields.keySet()) {
@@ -357,11 +357,9 @@ public class BinaryExporter implements JmeExporter {
             parentDirectory.mkdirs();
         }
 
-        FileOutputStream fos = new FileOutputStream(f);
-        try {
-            save(object, fos);
-        } finally {
-            fos.close();
+        try (FileOutputStream fos = new FileOutputStream(f);
+                BufferedOutputStream bos = new BufferedOutputStream(fos)) {
+            save(object, bos);
         }
     }
 
@@ -375,12 +373,12 @@ public class BinaryExporter implements JmeExporter {
         bco.alias = generateTag();
         bco.nameFields = new HashMap<>();
         bco.classHierarchyVersions = SavableClassUtil.getSavableVersions(clazz);
-        
+
         classes.put(clazz.getName(), bco);
-            
+
         return bco;
     }
-    
+
     public int processBinarySavable(Savable object) throws IOException {
         if (object == null) {
             return -1;