TL1 device provider with driver for Lumentum WaveReady.

ONOS-5800 & ONOS-5801

Change-Id: Icd820285eb8db2fd92c03ebf11ce022b6a82b48a
diff --git a/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumRoadmDiscovery.java b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumRoadmDiscovery.java
new file mode 100644
index 0000000..c49d6ed
--- /dev/null
+++ b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/LumentumRoadmDiscovery.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2016-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.drivers.lumentum;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.SparseAnnotations;
+import org.onosproject.net.device.DefaultDeviceDescription;
+import org.onosproject.net.device.DeviceDescription;
+import org.onosproject.net.device.DeviceDescriptionDiscovery;
+import org.onosproject.net.device.DeviceService;
+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 com.google.common.base.Preconditions.checkNotNull;
+import static org.onosproject.net.optical.device.OmsPortHelper.omsPortDescription;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Device description behaviour for Lumentum Snmp devices.
+ */
+public class LumentumRoadmDiscovery extends AbstractHandlerBehaviour implements DeviceDescriptionDiscovery {
+
+    private final Logger log = getLogger(getClass());
+
+    private static final String CTRL_PORT_STATE = ".1.3.6.1.4.1.46184.1.4.1.1.3.";
+
+    private LumentumSnmpDevice snmp;
+
+    @Override
+    public DeviceDescription discoverDeviceDetails() {
+        //TODO get device description
+        DeviceService deviceService = checkNotNull(handler().get(DeviceService.class));
+        DeviceId deviceId = handler().data().deviceId();
+        Device device = deviceService.getDevice(deviceId);
+        return new DefaultDeviceDescription(device.id().uri(), Device.Type.ROADM,
+                                            "Lumentum", "SDN ROADM", "1.0", "v1",
+                                            device.chassisId(), (SparseAnnotations) device.annotations());
+    }
+
+    @Override
+    public List<PortDescription> discoverPortDetails() {
+        return ImmutableList.copyOf(this.getPorts());
+    }
+
+    private 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 = 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(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(omsPortDescription(
+                PortNumber.portNumber(ports.size() + 1),
+                true,
+                LumentumSnmpDevice.START_CENTER_FREQ,
+                LumentumSnmpDevice.END_CENTER_FREQ,
+                LumentumSnmpDevice.CHANNEL_SPACING.frequency(),
+                annLineOut
+        ));
+
+        return ports;
+    }
+}