[ONOS-4797] Implement the Driver for handling Arista switch
Arista switch with its recent network OS, EOS, supports remote configuration & control. The protocol for this is Arista's proprietary but REST style.
Since ONOS has already REST southbound protocol, the control of Arista switch can be easily done by using this.
- Implemnted driver Loader for Arista switch
- Implemented DeviceDescriptionDiscovery for Arista switch
- [Deleted] Implemented the method sending post to Arista switch and return the result as a String
Change-Id: I9d4b8f0d707361949ff530ff414adb0437ae87d9
diff --git a/drivers/arista/src/main/java/org/onosproject/drivers/arista/AristaDriversLoader.java b/drivers/arista/src/main/java/org/onosproject/drivers/arista/AristaDriversLoader.java
new file mode 100755
index 0000000..457d159
--- /dev/null
+++ b/drivers/arista/src/main/java/org/onosproject/drivers/arista/AristaDriversLoader.java
@@ -0,0 +1,30 @@
+/*
+ * 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.arista;
+
+import org.apache.felix.scr.annotations.Component;
+import org.onosproject.net.driver.AbstractDriverLoader;
+
+/**
+ * Loader for Arista device drivers.
+ */
+@Component(immediate = true)
+public class AristaDriversLoader extends AbstractDriverLoader {
+ public AristaDriversLoader() {
+ super("/arista-drivers.xml");
+ }
+}
diff --git a/drivers/arista/src/main/java/org/onosproject/drivers/arista/DeviceDescriptionDiscoveryAristaImpl.java b/drivers/arista/src/main/java/org/onosproject/drivers/arista/DeviceDescriptionDiscoveryAristaImpl.java
new file mode 100644
index 0000000..d82d39b
--- /dev/null
+++ b/drivers/arista/src/main/java/org/onosproject/drivers/arista/DeviceDescriptionDiscoveryAristaImpl.java
@@ -0,0 +1,153 @@
+/*
+ * 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.arista;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.Lists;
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Port;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.SparseAnnotations;
+import org.onosproject.net.device.DefaultPortDescription;
+import org.onosproject.net.device.DeviceDescription;
+import org.onosproject.net.device.DeviceDescriptionDiscovery;
+import org.onosproject.net.device.PortDescription;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.net.driver.DriverHandler;
+import org.onosproject.protocol.rest.RestSBController;
+import javax.ws.rs.core.MediaType;
+import org.slf4j.Logger;
+
+import java.util.List;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Discovers the ports from Arista EOS device.
+ */
+public class DeviceDescriptionDiscoveryAristaImpl extends AbstractHandlerBehaviour
+ implements DeviceDescriptionDiscovery {
+
+ private static final String JSON = "json";
+ private static final String RESULT = "result";
+ private static final String INTERFACE_STATUSES = "interfaceStatuses";
+ private static final String LINK_STATUS = "linkStatus";
+ private static final String LINE_PROTOCOL_STATUS = "lineProtocolStatus";
+ private static final String BANDWIDTH = "bandwidth";
+ private static final String ETHERNET = "Ethernet";
+ private static final String MANAGEMENT = "Management";
+ private static final String INTERFACE_TYPE = "interfaceType";
+ private static final int WEIGHTING_FACTOR_MANAGEMENT_INTERFACE = 100;
+ private static final String JSONRPC = "jsonrpc";
+ private static final String METHOD = "method";
+ private static final String RUN_CMDS = "runCmds";
+ private static final String VERSION = "version";
+ private static final String ID = "id";
+ private static final String GET_PORT = "GetPort";
+ private static final String PARAMS = "params";
+ private static final String FORMAT = "format";
+ private static final String TIMESTAMPS = "timestamps";
+ private static final String CMDS = "cmds";
+ private static final String SHOW_INTERFACES_STATUS = "show interfaces status";
+ private static final String TWO_POINT_ZERO = "2.0";
+ private static final long MBPS = 1000000;
+
+ private final Logger log = getLogger(getClass());
+
+ private static final String API_ENDPOINT = "/command-api/";
+
+ @Override
+ public DeviceDescription discoverDeviceDetails() {
+ log.info("No description to be added for device");
+ //TODO to be implemented if needed.
+ return null;
+ }
+
+ @Override
+ public List<PortDescription> discoverPortDetails() {
+ List<PortDescription> ports = Lists.newArrayList();
+ DriverHandler handler = handler();
+ RestSBController controller = checkNotNull(handler.get(RestSBController.class));
+ DeviceId deviceId = handler.data().deviceId();
+
+ ObjectMapper mapper = new ObjectMapper();
+
+ ObjectNode sendObjNode = mapper.createObjectNode();
+
+ sendObjNode.put(JSONRPC, TWO_POINT_ZERO)
+ .put(METHOD, RUN_CMDS)
+ .put(ID, GET_PORT)
+ .putObject(PARAMS)
+ .put(FORMAT, JSON)
+ .put(TIMESTAMPS, false)
+ .put(VERSION, 1)
+ .putArray(CMDS).add(SHOW_INTERFACES_STATUS);
+
+ String response = controller.post(deviceId, API_ENDPOINT,
+ new ByteArrayInputStream(sendObjNode.toString().getBytes()),
+ MediaType.APPLICATION_JSON, String.class);
+
+ try {
+ ObjectNode node = (ObjectNode) mapper.readTree(response);
+ ArrayNode arrayNode = (ArrayNode) node.get(RESULT);
+
+ JsonNode jsonNode = arrayNode.iterator().next().get(INTERFACE_STATUSES);
+
+ jsonNode.fieldNames().forEachRemaining(name -> {
+ JsonNode interfaceNode = jsonNode.get(name);
+
+ Long bandwidth = interfaceNode.path(BANDWIDTH).asLong() / MBPS;
+
+ SparseAnnotations annotations = DefaultAnnotations.builder()
+ .set(AnnotationKeys.BANDWIDTH, bandwidth.toString())
+ .set(AnnotationKeys.NAME, name)
+ .set(LINK_STATUS, interfaceNode.path(LINK_STATUS).asText())
+ .set(LINE_PROTOCOL_STATUS, interfaceNode.path(LINE_PROTOCOL_STATUS).asText())
+ .set(INTERFACE_TYPE, interfaceNode.path(INTERFACE_TYPE).asText())
+ .build();
+
+ PortDescription portDescription = new DefaultPortDescription(PortNumber
+ .portNumber(getPortNumber(name)),
+ true, Port.Type.FIBER, bandwidth, annotations);
+ ports.add(portDescription);
+
+ });
+
+ } catch (IOException e) {
+ log.warn("IO exception occured because of ", e);
+ }
+ return ports;
+ }
+
+ private int getPortNumber(String interfaceName) {
+ if (interfaceName.startsWith(ETHERNET)) {
+ return Integer.valueOf(interfaceName.substring(ETHERNET.length()));
+ } else {
+ return Integer.valueOf(interfaceName.substring(MANAGEMENT.length())).intValue()
+ + WEIGHTING_FACTOR_MANAGEMENT_INTERFACE;
+ }
+ }
+}
+
diff --git a/drivers/arista/src/main/java/org/onosproject/drivers/arista/package-info.java b/drivers/arista/src/main/java/org/onosproject/drivers/arista/package-info.java
new file mode 100644
index 0000000..16eaa62
--- /dev/null
+++ b/drivers/arista/src/main/java/org/onosproject/drivers/arista/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * 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 for Arista EOS device drivers.
+ */
+package org.onosproject.drivers.arista;
\ No newline at end of file
diff --git a/drivers/arista/src/main/resources/arista-drivers.xml b/drivers/arista/src/main/resources/arista-drivers.xml
new file mode 100755
index 0000000..c007040
--- /dev/null
+++ b/drivers/arista/src/main/resources/arista-drivers.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ 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.
+ -->
+<drivers>
+ <driver name="restArista" manufacturer="Arista Networks" hwVersion="1.0.0" swVersion="1.0.0">
+ <behaviour api="org.onosproject.net.device.DeviceDescriptionDiscovery"
+ impl="org.onosproject.drivers.arista.DeviceDescriptionDiscoveryAristaImpl"/>
+ </driver>
+</drivers>
+