--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugin/JavaBytes.cpp	Thu Oct 19 11:14:45 2023 +0200
@@ -0,0 +1,64 @@
+/**
+ * SPDX-FileCopyrightText: 2023 Sebastien Jodogne, UCLouvain, Belgium
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+/**
+ * Java plugin for Orthanc
+ * Copyright (C) 2023 Sebastien Jodogne, UCLouvain, Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "JavaBytes.h"
+
+#include <stdexcept>
+
+
+JavaBytes::JavaBytes(JNIEnv* env,
+                     jbyteArray bytes) :
+  env_(env),
+  bytes_(bytes)
+{
+  if (env == NULL ||
+      bytes == NULL)
+  {
+    throw std::runtime_error("Null pointer");
+  }
+
+  size_ = env->GetArrayLength(bytes);
+
+  if (size_ == 0)
+  {
+    data_ = NULL;
+  }
+  else
+  {
+    data_ = env->GetByteArrayElements(bytes_, &isCopy_);
+    if (data_ == NULL)
+    {
+      throw std::runtime_error("Cannot read array of bytes");
+    }
+  }
+}
+
+
+JavaBytes::~JavaBytes()
+{
+  if (size_ > 0)
+  {
+    env_->ReleaseByteArrayElements(bytes_, data_, 0);
+  }
+}