NXDT-related updates

src/main/java/nsusbloader/COM/USB/common/NsUsbInterface.java

@@ -0,0 +1,50 @@
+/*
+    Copyright 2019-2020 Dmitry Isaenko
+
+    This file is part of NS-USBloader.
+
+    NS-USBloader 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.
+
+    NS-USBloader 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 NS-USBloader.  If not, see <https://www.gnu.org/licenses/>.
+*/
+package nsusbloader.COM.USB.common;
+
+import org.usb4java.Interface;
+import org.usb4java.InterfaceDescriptor;
+
+import java.util.LinkedList;
+
+/**
+ * Adapter for easier access to USB devices which has only one interface with one interface descriptor (BULK)
+ *
+ * After few JVM failed to core few 'holders' were added: such as NsUsbEndpoint descriptor and NsUsbInterfaceDescriptor
+ * */
+
+public class NsUsbInterface {
+    private final Interface iface;
+    private final LinkedList<NsUsbInterfaceDescriptor> interfaceDescriptors;
+
+    public NsUsbInterface(Interface iface){
+        this.iface = iface;
+        this.interfaceDescriptors = new LinkedList<>();
+        collectDescriptors();
+    }
+
+    private void collectDescriptors(){
+        for (InterfaceDescriptor ifaceDescriptor : iface.altsetting()){
+            interfaceDescriptors.add(new NsUsbInterfaceDescriptor(ifaceDescriptor));
+        }
+    }
+    public NsUsbInterfaceDescriptor[] getInterfaceDescriptors(){
+        return interfaceDescriptors.toArray(new NsUsbInterfaceDescriptor[0]);
+    }
+}