initial commit
diff --git a/src/main/java/org.onosproject.xran/providers/CellDeviceProvider.java b/src/main/java/org.onosproject.xran/providers/CellDeviceProvider.java
new file mode 100644
index 0000000..f89fe09
--- /dev/null
+++ b/src/main/java/org.onosproject.xran/providers/CellDeviceProvider.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2015-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.xran.providers;
+
+import org.apache.felix.scr.annotations.*;
+import org.onlab.packet.ChassisId;
+import org.onosproject.net.*;
+import org.onosproject.net.device.*;
+import org.onosproject.net.provider.AbstractProvider;
+import org.onosproject.net.provider.ProviderId;
+import org.onosproject.xran.controller.XranController;
+import org.onosproject.xran.entities.RnibCell;
+import org.slf4j.Logger;
+
+import static org.onosproject.net.DeviceId.deviceId;
+import static org.onosproject.xran.entities.RnibCell.*;
+import static org.slf4j.LoggerFactory.getLogger;
+
+
+/**
+ * Created by dimitris on 7/27/17.
+ */
+
+@Component(immediate = true)
+public class CellDeviceProvider extends AbstractProvider implements DeviceProvider {
+
+    private static final Logger log = getLogger(CellDeviceProvider.class);
+    private final InternalDeviceListener listener = new InternalDeviceListener();
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceProviderRegistry providerRegistry;
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected XranController controller;
+    private DeviceProviderService providerService;
+
+    public CellDeviceProvider() {
+        super(new ProviderId("xran", "org.onosproject.provider.xran"));
+    }
+
+    @Activate
+    public void activate() {
+        providerService = providerRegistry.register(this);
+        controller.addListener(listener);
+
+        log.info("XRAN Device Provider Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        controller.removeListener(listener);
+        providerRegistry.unregister(this);
+
+        providerService = null;
+        log.info("XRAN Device Provider Stopped");
+    }
+
+    @Override
+    public void triggerProbe(DeviceId deviceId) {
+
+    }
+
+    @Override
+    public void roleChanged(DeviceId deviceId, MastershipRole newRole) {
+
+    }
+
+    @Override
+    public boolean isReachable(DeviceId deviceId) {
+        return true;
+    }
+
+    @Override
+    public void changePortState(DeviceId deviceId, PortNumber portNumber, boolean enable) {
+
+    }
+
+    private class InternalDeviceListener implements XranDeviceListener {
+
+        @Override
+        public void deviceAdded(RnibCell cell) {
+            if (providerService == null) {
+                return;
+            }
+
+            DeviceId id = deviceId(uri(cell.getEcgi()));
+
+            ChassisId cId = new ChassisId(id.hashCode());
+
+            Device.Type type = Device.Type.OTHER;
+            SparseAnnotations annotations = DefaultAnnotations.builder()
+                    .set(AnnotationKeys.NAME, "eNodeB #" + cell.getEcgi().getEUTRANcellIdentifier())
+                    .set(AnnotationKeys.PROTOCOL, "SCTP")
+                    .set(AnnotationKeys.CHANNEL_ID, "xxx")
+                    .set(AnnotationKeys.MANAGEMENT_ADDRESS, "127.0.0.1")
+                    .build();
+
+            DeviceDescription descBase =
+                    new DefaultDeviceDescription(id.uri(), type,
+                            "xran", "0.1", "0.1", id.uri().toString(),
+                            cId);
+            DeviceDescription desc = new DefaultDeviceDescription(descBase, annotations);
+
+            providerService.deviceConnected(id, desc);
+        }
+
+        @Override
+        public void deviceRemoved(DeviceId id) {
+            providerService.deviceDisconnected(id);
+        }
+    }
+}