Added interop data loader.

Author: vozerov

modules/core/src/main/java/org/gridgain/grid/kernal/processors/interop/GridInteropProcessor.java

@@ -56,6 +56,15 @@ public interface GridInteropProcessor extends GridProcessor {
      */
     public GridInteropTarget cache(@Nullable String name) throws IgniteCheckedException;
 
+    /**
+     * Gets native wrapper for data loader for cache with the given name.
+     *
+     * @param cacheName Cache name ({@code null} for default cache).
+     * @return Native data loader wrapper.
+     * @throws IgniteCheckedException If failed.
+     */
+    public GridInteropTarget dataLoader(@Nullable String cacheName) throws IgniteCheckedException;
+
     /**
      * Stops grid.
      *

modules/core/src/main/java/org/gridgain/grid/kernal/processors/interop/os/GridOsInteropProcessor.java

@@ -65,4 +65,9 @@ public GridOsInteropProcessor(GridKernalContext ctx) {
     @Override public GridInteropTarget cache(@Nullable String name) throws IgniteCheckedException {
         throw new UnsupportedOperationException(ERR_MSG);
     }
+
+    /** {@inheritDoc} */
+    @Override public GridInteropTarget dataLoader(@Nullable String cacheName) throws IgniteCheckedException {
+        throw new UnsupportedOperationException(ERR_MSG);
+    }
 }