Add the NewClass code really

Author: jvazquez-r7

lib/rex/java/serialization/model/new_class.rb

@@ -0,0 +1,57 @@
+# -*- coding: binary -*-
+
+module Rex
+  module Java
+    module Serialization
+      module Model
+        # This class provides a NewArray (Java Array) representation
+        class NewClass < Element
+
+          include Rex::Java::Serialization::Model::Contents
+
+          # @!attribute array_description
+          #   @return [Java::Serialization::Model::ClassDesc] The description of the class
+          attr_accessor :class_description
+
+          # @param stream [Rex::Java::Serialization::Model::Stream] the stream where it belongs to
+          def initialize(stream = nil)
+            super(stream)
+            self.class_description = nil
+          end
+
+          # Deserializes a Rex::Java::Serialization::Model::NewClass
+          #
+          # @param io [IO] the io to read from
+          # @return [self] if deserialization succeeds
+          # @raise [Rex::Java::Serialization::DecodeError] if deserialization doesn't succeed
+          def decode(io)
+            self.class_description = ClassDesc.decode(io, stream)
+            stream.add_reference(self) unless stream.nil?
+
+            self
+          end
+
+          # Serializes the Rex::Java::Serialization::Model::NewClass
+          #
+          # @return [String] if serialization succeeds
+          # @raise [Rex::Java::Serialization::EncodeError] if serialization doesn't succeed
+          def encode
+            unless class_description.kind_of?(ClassDesc)
+              raise Rex::Java::Serialization::EncodeError, 'Failed to serialize NewClass'
+            end
+
+            encoded = ''
+            encoded << class_description.encode
+          end
+
+          # Creates a print-friendly string representation
+          #
+          # @return [String]
+          def to_s
+            print_content(class_description)
+          end
+        end
+      end
+    end
+  end
+end