1 files changed, 134 insertions, 0 deletions
diff --git a/framework/src/onos/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java b/framework/src/onos/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java
new file mode 100644
index 00000000..10e745e3
--- /dev/null
+++ b/framework/src/onos/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2015 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.ovsdb.providers.device;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
+import java.net.URI;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.packet.ChassisId;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.MastershipRole;
+import org.onosproject.net.SparseAnnotations;
+import org.onosproject.net.device.DefaultDeviceDescription;
+import org.onosproject.net.device.DeviceDescription;
+import org.onosproject.net.device.DeviceProvider;
+import org.onosproject.net.device.DeviceProviderRegistry;
+import org.onosproject.net.device.DeviceProviderService;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.provider.AbstractProvider;
+import org.onosproject.net.provider.ProviderId;
+import org.onosproject.ovsdb.controller.OvsdbController;
+import org.onosproject.ovsdb.controller.OvsdbNodeId;
+import org.onosproject.ovsdb.controller.OvsdbNodeListener;
+import org.slf4j.Logger;
+
+/**
+ * Provider which uses an ovsdb controller to detect device.
+ */
+@Component(immediate = true)
+@Service
+public class OvsdbDeviceProvider extends AbstractProvider
+        implements DeviceProvider {
+    private final Logger log = getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceProviderRegistry providerRegistry;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceService deviceService;
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected OvsdbController controller;
+
+    private DeviceProviderService providerService;
+    private OvsdbNodeListener innerNodeListener = new InnerOvsdbNodeListener();
+    protected static final String ISNOTNULL = "OvsdbNodeId is not null";
+    private static final String UNKNOWN = "unknown";
+
+    @Activate
+    public void activate() {
+        providerService = providerRegistry.register(this);
+        controller.addNodeListener(innerNodeListener);
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        providerRegistry.unregister(this);
+        providerService = null;
+        log.info("Stopped");
+    }
+
+    public OvsdbDeviceProvider() {
+        super(new ProviderId("ovsdb", "org.onosproject.ovsdb.provider.device"));
+    }
+
+    @Override
+    public void triggerProbe(DeviceId deviceId) {
+        // TODO: This will be implemented later.
+        log.info("Triggering probe on device {}", deviceId);
+    }
+
+    @Override
+    public void roleChanged(DeviceId deviceId, MastershipRole newRole) {
+        // TODO: This will be implemented later.
+    }
+
+    @Override
+    public boolean isReachable(DeviceId deviceId) {
+        return true;
+    }
+
+    private class InnerOvsdbNodeListener implements OvsdbNodeListener {
+
+        @Override
+        public void nodeAdded(OvsdbNodeId nodeId) {
+            checkNotNull(nodeId, ISNOTNULL);
+            DeviceId deviceId = DeviceId.deviceId(nodeId.toString());
+            URI uri = URI.create(nodeId.toString());
+            ChassisId cid = new ChassisId();
+            String ipAddress = nodeId.getIpAddress();
+            SparseAnnotations annotations = DefaultAnnotations.builder()
+                    .set("ipaddress", ipAddress).build();
+            DeviceDescription deviceDescription = new DefaultDeviceDescription(
+                                                                               uri,
+                                                                               Device.Type.CONTROLLER,
+                                                                               UNKNOWN, UNKNOWN,
+                                                                               UNKNOWN, UNKNOWN,
+                                                                               cid,
+                                                                               annotations);
+            providerService.deviceConnected(deviceId, deviceDescription);
+
+        }
+
+        @Override
+        public void nodeRemoved(OvsdbNodeId nodeId) {
+            checkNotNull(nodeId, ISNOTNULL);
+            DeviceId deviceId = DeviceId.deviceId(nodeId.toString());
+            providerService.deviceDisconnected(deviceId);
+
+        }
+    }
+}