SNMP based device and flow rule provider for Lumentum SDN ROADMs.
ONOS-3690 and ONOS-3842
Change-Id: If00ba70fa26e01924c225596c52a5ffb24987cc2
diff --git a/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/PortDiscoveryLumentumRoadm.java b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/PortDiscoveryLumentumRoadm.java
new file mode 100644
index 0000000..9d250c0
--- /dev/null
+++ b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/PortDiscoveryLumentumRoadm.java
@@ -0,0 +1,123 @@
+/*
+ * Copyright 2016 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.drivers.lumentum;
+
+import com.google.common.collect.Lists;
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.SparseAnnotations;
+import org.onosproject.net.behaviour.PortDiscovery;
+import org.onosproject.net.device.OmsPortDescription;
+import org.onosproject.net.device.PortDescription;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.slf4j.Logger;
+import org.snmp4j.smi.OID;
+import org.snmp4j.smi.VariableBinding;
+import org.snmp4j.util.TreeEvent;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Discovers the ports of a Lumentum SDN ROADM device using SNMP.
+ */
+public class PortDiscoveryLumentumRoadm extends AbstractHandlerBehaviour
+ implements PortDiscovery {
+
+ private final Logger log = getLogger(PortDiscoveryLumentumRoadm.class);
+
+ private static final String CTRL_PORT_STATE = ".1.3.6.1.4.1.46184.1.4.1.1.3.";
+
+ private LumentumSnmpDevice snmp;
+
+ @Override
+ public List<PortDescription> getPorts() {
+ try {
+ snmp = new LumentumSnmpDevice(handler().data().deviceId());
+ } catch (IOException e) {
+ log.error("Failed to connect to device: ", e);
+
+ return Collections.emptyList();
+ }
+
+ List<PortDescription> ports = Lists.newLinkedList();
+
+ OID[] oids = {
+ new OID(CTRL_PORT_STATE + "1"),
+ new OID(CTRL_PORT_STATE + "2")
+ };
+
+ for (OID oid : oids) {
+
+ for (TreeEvent event : snmp.get(oid)) {
+ if (event != null) {
+ VariableBinding[] varBindings = event.getVariableBindings();
+ for (VariableBinding varBinding : varBindings) {
+ if (varBinding.getVariable().toInt() == 1) {
+ int portNumber = varBinding.getOid().removeLast();
+ int portDirection = varBinding.getOid().removeLast();
+ SparseAnnotations ann = DefaultAnnotations.builder()
+ .set(AnnotationKeys.PORT_NAME, portDirection + "-" + portNumber)
+ .build();
+ PortDescription p = new OmsPortDescription(
+ PortNumber.portNumber(ports.size() + 1),
+ true,
+ LumentumSnmpDevice.START_CENTER_FREQ,
+ LumentumSnmpDevice.END_CENTER_FREQ,
+ LumentumSnmpDevice.CHANNEL_SPACING.frequency(),
+ ann);
+ ports.add(p);
+ }
+ }
+ }
+ }
+ }
+
+ // Create LINE IN and LINE OUT ports as these are not reported through SNMP
+ SparseAnnotations annLineIn = DefaultAnnotations.builder()
+ .set(AnnotationKeys.PORT_NAME, "LINE IN")
+ .build();
+ ports.add(new OmsPortDescription(
+ PortNumber.portNumber(ports.size() + 1),
+ true,
+ LumentumSnmpDevice.START_CENTER_FREQ,
+ LumentumSnmpDevice.END_CENTER_FREQ,
+ LumentumSnmpDevice.CHANNEL_SPACING.frequency(),
+ annLineIn
+ ));
+
+ SparseAnnotations annLineOut = DefaultAnnotations.builder()
+ .set(AnnotationKeys.PORT_NAME, "LINE OUT")
+ .build();
+ ports.add(new OmsPortDescription(
+ PortNumber.portNumber(ports.size() + 1),
+ true,
+ LumentumSnmpDevice.START_CENTER_FREQ,
+ LumentumSnmpDevice.END_CENTER_FREQ,
+ LumentumSnmpDevice.CHANNEL_SPACING.frequency(),
+ annLineOut
+ ));
+
+ return ports;
+ }
+}
+
+