[ONOS-2261] - OVSDB -- Create the implementation of DeviceProvider using
OVSDB protocol.
1.Notify the Device System when the ovsdb node is connected.
2.Notify the Device System when the ovsdb node is disconected.
Change-Id: Iff795bfaca624bf957eb1c17626dfb56e241550a
diff --git a/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java b/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java
new file mode 100644
index 0000000..10e745e
--- /dev/null
+++ b/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);
+
+ }
+ }
+}