[ONOS-6681] Port statistics discovery Cisco REST driver
Change-Id: Icccf6e2e57e0d0f7c6c7f2f09b99c4ed89081ed6
diff --git a/drivers/cisco/rest/src/main/java/org/onosproject/drivers/cisco/rest/CiscoNxosDeviceDescription.java b/drivers/cisco/rest/src/main/java/org/onosproject/drivers/cisco/rest/CiscoNxosDeviceDescription.java
index 92a9b7f..91f88ab 100644
--- a/drivers/cisco/rest/src/main/java/org/onosproject/drivers/cisco/rest/CiscoNxosDeviceDescription.java
+++ b/drivers/cisco/rest/src/main/java/org/onosproject/drivers/cisco/rest/CiscoNxosDeviceDescription.java
@@ -53,10 +53,8 @@
private final Logger log = getLogger(getClass());
private static final String UNKNOWN = "unknown";
-
private static final String SHOW_INTERFACES_CMD = "show interface";
private static final String SHOW_VERSION_CMD = "show version";
-
private static final String MANUFACTURER = "manufacturer";
private static final String CHASSIS_ID = "chassis_id";
private static final String KICKSTART_VER = "kickstart_ver_str";
@@ -71,7 +69,6 @@
private static final String ZERO = "0";
private static final int ONE_THOUSAND = 1000;
-
@Override
public DeviceDescription discoverDeviceDetails() {
DriverHandler handler = handler();
@@ -121,7 +118,6 @@
cmd.add(SHOW_INTERFACES_CMD);
String req = NxApiRequest.generate(cmd, NxApiRequest.CommandType.CLI);
-
String response = NxApiRequest.post(controller, deviceId, req);
// parse interface information from response
diff --git a/drivers/cisco/rest/src/main/java/org/onosproject/drivers/cisco/rest/CiscoNxosPortStatistics.java b/drivers/cisco/rest/src/main/java/org/onosproject/drivers/cisco/rest/CiscoNxosPortStatistics.java
new file mode 100644
index 0000000..074cdb8
--- /dev/null
+++ b/drivers/cisco/rest/src/main/java/org/onosproject/drivers/cisco/rest/CiscoNxosPortStatistics.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2017-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.cisco.rest;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Port;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.device.DefaultPortStatistics;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.device.PortStatistics;
+import org.onosproject.net.device.PortStatisticsDiscovery;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.net.driver.DriverHandler;
+import org.onosproject.protocol.rest.RestSBController;
+import org.slf4j.Logger;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Discovers port statistics from a Cisco NXOS device.
+ */
+public class CiscoNxosPortStatistics extends AbstractHandlerBehaviour implements PortStatisticsDiscovery {
+
+ private static final String SHOW_INTERFACE_CMD = "show interface";
+ private static final String ROW_INTERFACE = "ROW_interface";
+ private static final String RESULT = "result";
+ private static final String ETH_INPKTS = "eth_inpkts";
+ private static final String ETH_OUTPKTS = "eth_outpkts";
+ private static final String ETH_INBYTES = "eth_inbytes";
+ private static final String ETH_OUTBYTES = "eth_outbytes";
+ private static final String ETH_INERR = "eth_inerr";
+ private static final String ETH_OUTERR = "eth_outerr";
+ private static final String ETH_INERR1 = "eth_inerr";
+ private static final String ETH_OUTERR1 = "eth_outerr";
+ private static final String WHITE_SPACE_FORMAT = "%s %s";
+
+ private final Logger log = getLogger(getClass());
+
+ @Override
+ public Collection<PortStatistics> discoverPortStatistics() {
+ DriverHandler handler = handler();
+ RestSBController controller = checkNotNull(handler.get(RestSBController.class));
+ DeviceId deviceId = handler.data().deviceId();
+ DeviceService deviceService = this.handler().get(DeviceService.class);
+ List<Port> ports = deviceService.getPorts(deviceId);
+ Collection<PortStatistics> portStatistics = Lists.newArrayList();
+
+ ports.stream()
+ .filter(Port::isEnabled)
+ .forEach(port -> portStatistics.add(discoverSpecifiedPortStatistics(port, controller, deviceId)));
+
+ return ImmutableList.copyOf(portStatistics);
+ }
+
+ private PortStatistics discoverSpecifiedPortStatistics(Port port,
+ RestSBController controller,
+ DeviceId deviceId) {
+ String portName = port.annotations().value(AnnotationKeys.PORT_NAME);
+ ArrayList<String> cmd = Lists.newArrayList();
+ cmd.add(String.format(WHITE_SPACE_FORMAT, SHOW_INTERFACE_CMD, portName));
+
+ String request = NxApiRequest.generate(cmd, NxApiRequest.CommandType.CLI);
+ String response = NxApiRequest.post(controller, deviceId, request);
+
+ return buildStatisticsFromResponse(response, port.number(), deviceId);
+ }
+
+ private DefaultPortStatistics buildStatisticsFromResponse(String response,
+ PortNumber portNumber,
+ DeviceId deviceId) {
+ DefaultPortStatistics defaultPortStatistics = null;
+
+ try {
+ ObjectMapper om = new ObjectMapper();
+ JsonNode json = om.readTree(response);
+ JsonNode res = json.get(RESULT);
+ JsonNode deviceInterface = res.findValue(ROW_INTERFACE);
+ long packetsReceived = deviceInterface.get(ETH_INPKTS).asLong();
+ long packetsSent = deviceInterface.get(ETH_OUTPKTS).asLong();
+ long bytesReceived = deviceInterface.get(ETH_INBYTES).asLong();
+ long bytesSent = deviceInterface.get(ETH_OUTBYTES).asLong();
+ long packetsRxDropped = deviceInterface.get(ETH_INERR).asLong();
+ long packetsTxDropped = deviceInterface.get(ETH_OUTERR).asLong();
+ long packetsRxErrors = deviceInterface.get(ETH_INERR1).asLong();
+ long packetsTxErrors = deviceInterface.get(ETH_OUTERR1).asLong();
+
+ DefaultPortStatistics.Builder builder = DefaultPortStatistics.builder();
+ defaultPortStatistics = builder.setPort((int) portNumber.toLong())
+ .setPacketsReceived(packetsReceived)
+ .setPacketsSent(packetsSent)
+ .setBytesReceived(bytesReceived)
+ .setBytesSent(bytesSent)
+ .setPacketsRxDropped(packetsRxDropped)
+ .setPacketsTxDropped(packetsTxDropped)
+ .setPacketsRxErrors(packetsRxErrors)
+ .setPacketsTxErrors(packetsTxErrors)
+ .setDeviceId(deviceId)
+ .build();
+
+ } catch (IOException e) {
+ log.error("Cannot read or process NxApi response: {}", e.toString());
+ }
+
+ log.debug("Port statistics: {}", defaultPortStatistics);
+ return defaultPortStatistics;
+ }
+}
diff --git a/drivers/cisco/rest/src/main/resources/cisco-rest-drivers.xml b/drivers/cisco/rest/src/main/resources/cisco-rest-drivers.xml
index 9b8abdf..263e15d 100644
--- a/drivers/cisco/rest/src/main/resources/cisco-rest-drivers.xml
+++ b/drivers/cisco/rest/src/main/resources/cisco-rest-drivers.xml
@@ -18,5 +18,7 @@
<driver name="cisco-rest" manufacturer="Cisco" hwVersion="" swVersion="NXOS">
<behaviour api="org.onosproject.net.device.DeviceDescriptionDiscovery"
impl="org.onosproject.drivers.cisco.rest.CiscoNxosDeviceDescription"/>
+ <behaviour api="org.onosproject.net.device.PortStatisticsDiscovery"
+ impl="org.onosproject.drivers.cisco.rest.CiscoNxosPortStatistics"/>
</driver>
</drivers>