[ONOS-7850] powerconfig for Cassini equipment.

Change-Id: If8a03ca4f2fa29536a56a0ff55d77600baa11d1b
diff --git a/cli/src/main/java/org/onosproject/cli/net/NetconfOperationCompleter.java b/cli/src/main/java/org/onosproject/cli/net/NetconfOperationCompleter.java
new file mode 100644
index 0000000..c32be06
--- /dev/null
+++ b/cli/src/main/java/org/onosproject/cli/net/NetconfOperationCompleter.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.
+ *
+ * This work was partially supported by EC H2020 project METRO-HAUL (761727).
+ */
+package org.onosproject.cli.net;
+
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.apache.karaf.shell.api.console.CommandLine;
+import org.apache.karaf.shell.api.console.Completer;
+import org.apache.karaf.shell.api.console.Session;
+import org.apache.karaf.shell.support.completers.StringsCompleter;
+
+import java.util.List;
+import java.util.SortedSet;
+
+/**
+ * Netconf Operation Completer.
+ */
+@Service
+public class NetconfOperationCompleter implements Completer {
+
+    @Override
+    public int complete(Session session, CommandLine commandLine, List<String> candidates) {
+        // Delegate string completer
+        StringsCompleter delegate = new StringsCompleter();
+        SortedSet<String> strings = delegate.getStrings();
+        // The available operations are defined in NETCONF protocol (https://tools.ietf.org/html/rfc6241#section-7).
+        strings.add("get");
+        strings.add("get-config");
+        strings.add("edit-config");
+        strings.add("copy-config");
+        strings.add("delete-config");
+        strings.add("lock");
+        strings.add("unlock");
+        strings.add("close-session");
+        strings.add("kill-session");
+        return delegate.complete(session, commandLine, candidates);
+    }
+
+}
diff --git a/cli/src/main/java/org/onosproject/cli/net/PowerConfigCommand.java b/cli/src/main/java/org/onosproject/cli/net/PowerConfigCommand.java
new file mode 100644
index 0000000..b7d5020
--- /dev/null
+++ b/cli/src/main/java/org/onosproject/cli/net/PowerConfigCommand.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.
+ *
+ * This work was partially supported by EC H2020 project METRO-HAUL (761727).
+ */
+package org.onosproject.cli.net;
+
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Completion;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
+import org.onosproject.cli.AbstractShellCommand;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.Device;
+import org.onosproject.net.Port;
+import org.onosproject.net.behaviour.PowerConfig;
+import org.onosproject.net.device.DeviceService;
+import org.slf4j.Logger;
+
+import java.util.Optional;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Get the target-output-power for specific optical-channel.
+ * This is a command for PowerConfig.
+ */
+@Service
+@Command(scope = "onos", name = "power-config",
+        description = "Get/Edit the target-output-power for specific optical-channel")
+public class PowerConfigCommand extends AbstractShellCommand {
+
+    private static final Logger log = getLogger(PowerConfigCommand.class);
+
+    @Argument(index = 0, name = "operation", description = "Netconf Operation including get, edit-config, etc.",
+            required = true, multiValued = false)
+    @Completion(NetconfOperationCompleter.class)
+    private String operation = null;
+
+    @Argument(index = 1, name = "connection point", description = "{DeviceID}/{PortNumber}",
+            required = true, multiValued = false)
+    @Completion(ConnectPointCompleter.class)
+    private String connectPoint = null;
+
+    @Argument(index = 2, name = "value", description = "target-output-power value. Unit: dBm",
+            required = false, multiValued = false)
+    private Long value = null;
+
+    @Override
+    protected void doExecute() throws Exception {
+        DeviceService deviceService = get(DeviceService.class);
+        ConnectPoint cp = ConnectPoint.deviceConnectPoint(connectPoint);
+        Port port = deviceService.getPort(cp);
+        if (port == null) {
+            print("[ERROR] %s does not exist", cp);
+            return;
+        }
+        Device device = deviceService.getDevice(cp.deviceId());
+        PowerConfig powerConfig = device.as(PowerConfig.class);
+        // FIXME the parameter "component" equals NULL now, because there is one-to-one mapping between
+        //  <component> and <optical-channel>.
+        if (operation.equals("get")) {
+            Optional<Long> val = powerConfig.getTargetPower(cp.port(), null);
+            long power = val.isPresent() ? val.get() : Long.MIN_VALUE;
+            print("The target-output-power value in port %s on device %s is %d.",
+                    cp.port().toString(), cp.deviceId().toString(), power);
+        } else if (operation.equals("edit-config")) {
+            checkNotNull(value);
+            powerConfig.setTargetPower(cp.port(), null, value);
+        } else {
+            log.warn("Operation {} are not supported now.", operation);
+        }
+    }
+}