[GEANT] Command device-interfaces added.

Change-Id: If70eedc5e8e0d83bc4d31c556fbf8382cbe97cec

+/*
+ * 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.cli.net;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.net.Device;
+import org.onosproject.net.behaviour.InterfaceConfig;
+import org.onosproject.net.device.DeviceInterfaceDescription;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.driver.DriverHandler;
+import org.onosproject.net.driver.DriverService;
+
+import java.util.List;
+
+import static org.onosproject.net.DeviceId.deviceId;
+
+/**
+ * Lists all interfaces or interfaces of a device.
+ */
+@Command(scope = "onos", name = "device-interfaces",
+        description = "Lists all interfaces or interfaces of a device.")
+public class DeviceInterfacesListCommand extends DevicesListCommand {
+    private static final String FORMAT = "%s";
+    private static final String MODE_FORMAT = " mode=";
+    private static final String ACCESS_MODE = "access";
+    private static final String TRUNK_MODE = "trunk";
+    private static final String VLAN_FORMAT = " vlan=";
+    private static final String LIMIT_FORMAT = " rate-limit=";
+    private static final String ERROR_RESULT = "Cannot retrieve interfaces for device";
+    private static final String NO_INTERFACES = "No interfaces found";
+    private static final String PERCENT = "%%";
+
+    @Argument(index = 0, name = "uri", description = "Device ID",
+            required = false, multiValued = false)
+    private String uri = null;
+
+    @Override
+    protected void execute() {
+        DeviceService deviceService = get(DeviceService.class);
+        DriverService driverService = get(DriverService.class);
+
+        if (uri == null) {
+            // No specific device, so all devices will be examined.
+            for (Device device : getSortedDevices(deviceService)) {
+                printDevice(deviceService, driverService, device);
+            }
+        } else {
+            Device device = deviceService.getDevice(deviceId(uri));
+            printDevice(deviceService, driverService, device);
+        }
+    }
+
+    private void printDevice(DeviceService deviceService,
+                             DriverService driverService,
+                             Device device) {
+        super.printDevice(deviceService, device);
+        if (!device.is(InterfaceConfig.class)) {
+            // The relevant behavior is not supported by the device.
+            print(ERROR_RESULT);
+            return;
+        }
+        DriverHandler h = driverService.createHandler(device.id());
+        InterfaceConfig interfaceConfig = h.behaviour(InterfaceConfig.class);
+
+        List<DeviceInterfaceDescription> interfaces =
+                interfaceConfig.getInterfaces(device.id());
+        if (interfaces == null) {
+            print(ERROR_RESULT);
+        } else if (interfaces.isEmpty()) {
+            print(NO_INTERFACES);
+        } else {
+            interfaces.forEach(this::printInterface);
+        }
+    }
+
+    private void printInterface(DeviceInterfaceDescription intf) {
+        StringBuilder formatStringBuilder = new StringBuilder(FORMAT);
+
+        if (intf.mode().equals(DeviceInterfaceDescription.Mode.ACCESS)) {
+            formatStringBuilder.append(MODE_FORMAT)
+                    .append(ACCESS_MODE)
+                    .append(VLAN_FORMAT);
+            formatStringBuilder.append(intf.vlans().get(0).toString());
+        } else if (intf.mode().equals(DeviceInterfaceDescription.Mode.TRUNK)) {
+            formatStringBuilder.append(MODE_FORMAT)
+                    .append(TRUNK_MODE)
+                    .append(VLAN_FORMAT);
+            for (int i = 0; i < intf.vlans().size(); i++) {
+                formatStringBuilder.append(intf.vlans().get(i));
+                if (i != intf.vlans().size() - 1) {
+                    formatStringBuilder.append(",");
+                }
+            }
+        }
+
+        if (intf.isRateLimited()) {
+            formatStringBuilder.append(LIMIT_FORMAT);
+            formatStringBuilder.append(intf.rateLimit());
+            formatStringBuilder.append(PERCENT);
+        }
+
+        print(formatStringBuilder.toString(), intf.name());
+    }
+}

@@ -180,6 +180,12 @@
             </completers>
             </completers>
         </command>
         </command>
         <command>
         <command>
+            <action class="org.onosproject.cli.net.DeviceInterfacesListCommand"/>
+            <completers>
+                <ref component-id="deviceIdCompleter"/>
+            </completers>
+        </command>
+        <command>
             <action class="org.onosproject.cli.net.AddMeter"/>
             <action class="org.onosproject.cli.net.AddMeter"/>
             <completers>
             <completers>
                 <ref component-id="deviceIdCompleter"/>
                 <ref component-id="deviceIdCompleter"/>

@@ -17,6 +17,7 @@ package org.onosproject.net.behaviour;
 
 
 import org.onlab.packet.VlanId;
 import org.onlab.packet.VlanId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.device.DeviceInterfaceDescription;
 import org.onosproject.net.driver.HandlerBehaviour;
 import org.onosproject.net.driver.HandlerBehaviour;
 
 
 import java.util.List;
 import java.util.List;
@@ -28,6 +29,7 @@ public interface InterfaceConfig extends HandlerBehaviour {
 
 
     /**
     /**
      * Adds an access interface to a VLAN.
      * Adds an access interface to a VLAN.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @param vlanId the VLAN ID
      * @param vlanId the VLAN ID
@@ -37,6 +39,7 @@ public interface InterfaceConfig extends HandlerBehaviour {
 
 
     /**
     /**
      * Removes an access interface to a VLAN.
      * Removes an access interface to a VLAN.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @return the result of operation
      * @return the result of operation
@@ -45,6 +48,7 @@ public interface InterfaceConfig extends HandlerBehaviour {
 
 
     /**
     /**
      *  Adds a trunk interface for VLANs.
      *  Adds a trunk interface for VLANs.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @param vlanIds the VLAN IDs
      * @param vlanIds the VLAN IDs
@@ -54,6 +58,7 @@ public interface InterfaceConfig extends HandlerBehaviour {
 
 
     /**
     /**
      *  Removes trunk mode configuration from an interface.
      *  Removes trunk mode configuration from an interface.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @return the result of operation
      * @return the result of operation
@@ -61,6 +66,14 @@ public interface InterfaceConfig extends HandlerBehaviour {
     boolean removeTrunkInterface(DeviceId deviceId, String intf);
     boolean removeTrunkInterface(DeviceId deviceId, String intf);
 
 
     /**
     /**
+     * Provides the interfaces configured on a device.
+     *
+     * @param deviceId the device ID
+     * @return the list of the configured interfaces
+     */
+    List<DeviceInterfaceDescription> getInterfaces(DeviceId deviceId);
+
+    /**
      *  TODO Addition of more methods to make the behavior symmetrical.
      *  TODO Addition of more methods to make the behavior symmetrical.
      *  Methods getInterfacesForVlan, getVlansForInterface, getTrunkforInterface,
      *  Methods getInterfacesForVlan, getVlansForInterface, getTrunkforInterface,
      *  getInterfacesForTrunk should be added to complete the behavior.
      *  getInterfacesForTrunk should be added to complete the behavior.

+/*
+ * 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.net.device;
+
+import com.google.common.collect.Lists;
+import org.onlab.packet.VlanId;
+
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * Basic implementation of description of a legacy device interface.
+ */
+public class DefaultDeviceInterfaceDescription implements
+        DeviceInterfaceDescription {
+    private String name;
+    private Mode mode;
+    private List<VlanId> vlans;
+    private boolean isRateLimited;
+    private short rateLimit;
+
+    /**
+     * Device interface description object constructor.
+     *
+     * @param name the name of the interface
+     * @param mode the operation mode of the interface
+     * @param vlans the vlan-id of the interface (none, one or multiple can be
+     *              specified based on if mode is normal, access or trunk).
+     * @param isRateLimited bandwidth limit application indication
+     * @param rateLimit percentage of bandwidth limit
+     */
+    public DefaultDeviceInterfaceDescription(String name,
+                                             Mode mode,
+                                             List<VlanId> vlans,
+                                             boolean isRateLimited,
+                                             short rateLimit) {
+        this.name = name;
+        this.mode = (mode != null ? mode : Mode.NORMAL);
+        this.vlans = (vlans != null ? vlans : Lists.newArrayList());
+        this.isRateLimited = isRateLimited;
+        this.rateLimit = rateLimit;
+    }
+
+    /**
+     * Returns the name of the interface.
+     *
+     * @return name of the interface
+     */
+    @Override
+    public String name() {
+        return this.name;
+    }
+
+    /**
+     * Returns the operation mode of the interface.
+     *
+     * @return operation mode of the interface
+     */
+    @Override
+    public Mode mode() {
+        return this.mode;
+    }
+
+    /**
+     * Returns the VLAN-IDs configured for the interface. No VLAN-ID should be
+     * returned for NORMAL mode, 1 VLAN-ID for access mode and 1 or more
+     * VLAN-IDs for trunking mode.
+     *
+     * @return VLAN-ID(s) configured for the interface.
+     */
+    @Override
+    public List<VlanId> vlans() {
+        return vlans;
+    }
+
+    /**
+     * Indicates whether a rate limit has been set on the interface.
+     *
+     * @return indication whether interface is rate limited or not
+     */
+    @Override
+    public boolean isRateLimited() {
+        return isRateLimited;
+    }
+
+    /**
+     * Returns the rate limit set on the interface bandwidth.
+     *
+     * @return the rate limit set on the interface bandwidth
+     */
+    @Override
+    public short rateLimit() {
+        return rateLimit;
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (!(other instanceof DefaultDeviceInterfaceDescription)) {
+            return false;
+        }
+
+        DefaultDeviceInterfaceDescription otherInterface =
+                (DefaultDeviceInterfaceDescription) other;
+
+        return Objects.equals(name, otherInterface.name) &&
+                Objects.equals(mode, otherInterface.mode) &&
+                Objects.equals(vlans, otherInterface.vlans) &&
+                Objects.equals(isRateLimited, otherInterface.isRateLimited) &&
+                Objects.equals(rateLimit, otherInterface.rateLimit);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, mode, vlans, isRateLimited, rateLimit);
+    }
+}

+/*
+ * 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.net.device;
+
+import org.onlab.packet.VlanId;
+
+import java.util.List;
+
+/**
+ * The description of an interface used for legacy devices.
+ */
+public interface DeviceInterfaceDescription {
+    /**
+     * Represents the type of operation of the interface.
+     */
+    enum Mode {
+        /**
+         * Normal mode of interface operation.
+         */
+        NORMAL,
+        /**
+         * Access mode to a VLAN for interface.
+         */
+        ACCESS,
+        /**
+         * Trunk mode for a set of VLANs for interface.
+         */
+        TRUNK
+    }
+
+    /**
+     * Returns the name of the interface.
+     *
+     * @return name of the interface
+     */
+    String name();
+
+    /**
+     *  Returns the operation mode of the interface.
+     *
+     *  @return operation mode of the interface
+     */
+    Mode mode();
+
+    /**
+     *  Returns the VLAN-IDs configured for the interface. No VLAN-ID should be
+     *  returned for NORMAL mode, 1 VLAN-ID for access mode and 1 or more
+     *  VLAN-IDs for trunking mode.
+     *
+     *  @return VLAN-ID(s) configured for the interface.
+     */
+    List<VlanId> vlans();
+
+    /**
+     *  Indicates whether a rate limit has been set on the interface.
+     *
+     *  @return indication whether interface is rate limited or not
+     */
+    boolean isRateLimited();
+
+    /**
+     *  Returns the rate limit set on the interface bandwidth.
+     *
+     *  @return the rate limit set on the interface bandwidth
+     */
+    short rateLimit();
+}

@@ -22,6 +22,7 @@ import org.onlab.packet.VlanId;
 import org.onosproject.drivers.utilities.XmlConfigParser;
 import org.onosproject.drivers.utilities.XmlConfigParser;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.behaviour.InterfaceConfig;
 import org.onosproject.net.behaviour.InterfaceConfig;
+import org.onosproject.net.device.DeviceInterfaceDescription;
 import org.onosproject.net.driver.AbstractHandlerBehaviour;
 import org.onosproject.net.driver.AbstractHandlerBehaviour;
 import org.onosproject.netconf.NetconfController;
 import org.onosproject.netconf.NetconfController;
 import org.onosproject.netconf.NetconfException;
 import org.onosproject.netconf.NetconfException;
@@ -45,6 +46,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      * Adds an access interface to a VLAN.
      * Adds an access interface to a VLAN.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @param vlanId the VLAN ID
      * @param vlanId the VLAN ID
@@ -72,6 +74,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      * Builds a request to add an access interface to a VLAN.
      * Builds a request to add an access interface to a VLAN.
+     *
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @param vlanId the VLAN ID
      * @param vlanId the VLAN ID
      * @return the request string.
      * @return the request string.
@@ -107,6 +110,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      * Removes an access interface to a VLAN.
      * Removes an access interface to a VLAN.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @return the result of operation
      * @return the result of operation
@@ -133,6 +137,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      * Builds a request to remove an access interface from a VLAN.
      * Builds a request to remove an access interface from a VLAN.
+     *
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @return the request string.
      * @return the request string.
      */
      */
@@ -166,6 +171,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      *  Adds a trunk interface for VLANs.
      *  Adds a trunk interface for VLANs.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @param vlanIds the VLAN IDs
      * @param vlanIds the VLAN IDs
@@ -193,6 +199,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      * Builds a request to configure an interface as trunk for VLANs.
      * Builds a request to configure an interface as trunk for VLANs.
+     *
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @param vlanIds the VLAN IDs
      * @param vlanIds the VLAN IDs
      * @return the request string.
      * @return the request string.
@@ -229,7 +236,8 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
     }
     }
 
 
     /**
     /**
-     *  Removes trunk mode configuration from an interface.
+     * Removes trunk mode configuration from an interface.
+     *
      * @param deviceId the device ID
      * @param deviceId the device ID
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @return the result of operation
      * @return the result of operation
@@ -256,6 +264,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      * Builds a request to remove trunk mode configuration from an interface.
      * Builds a request to remove trunk mode configuration from an interface.
+     *
      * @param intf the name of the interface
      * @param intf the name of the interface
      * @return the request string.
      * @return the request string.
      */
      */
@@ -292,6 +301,7 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
 
 
     /**
     /**
      * Builds a string with comma separated VLAN-IDs.
      * Builds a string with comma separated VLAN-IDs.
+     *
      * @param vlanIds the VLAN IDs
      * @param vlanIds the VLAN IDs
      * @return the string including the VLAN-IDs
      * @return the string including the VLAN-IDs
      */
      */
@@ -308,5 +318,54 @@ public class InterfaceConfigCiscoIosImpl extends AbstractHandlerBehaviour
         return  vlansStringBuilder.toString();
         return  vlansStringBuilder.toString();
     }
     }
 
 
+    /**
+     * Provides the interfaces configured on a device.
+     *
+     * @param deviceId the device ID
+     * @return the list of the configured interfaces
+     */
+    @Override
+    public List<DeviceInterfaceDescription> getInterfaces(DeviceId deviceId) {
+        NetconfController controller =
+                checkNotNull(handler().get(NetconfController.class));
+
+        NetconfSession session = controller.getDevicesMap().get(handler()
+                                 .data().deviceId()).getSession();
+        String reply;
+        try {
+            reply = session.requestSync(getConfigBuilder());
+        } catch (NetconfException e) {
+            log.error("Failed to retrieve configuration from device {}.",
+                      deviceId, e);
+            return null;
+        }
+
+        return XmlParserCisco.getInterfacesFromConfig(XmlConfigParser.loadXml(
+                new ByteArrayInputStream(reply.getBytes(StandardCharsets.UTF_8))));
+    }
+
+    /**
+     * Builds a request for getting configuration from device.
+     *
+     * @return the request string.
+     */
+    private String getConfigBuilder() {
+        StringBuilder rpc =
+                new StringBuilder("<rpc xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\" ");
+        rpc.append("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">");
+        rpc.append("<get-config>");
+        rpc.append("<source>");
+        rpc.append("<running/>");
+        rpc.append("</source>");
+        rpc.append("<filter>");
+        rpc.append("<config-format-xml>");
+        rpc.append("</config-format-xml>");
+        rpc.append("</filter>");
+        rpc.append("</get-config>");
+        rpc.append("</rpc>");
+
+        return rpc.toString();
+    }
+
 }
 }
 
 

+/*
+ * 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.cisco;
+
+import com.google.common.collect.Lists;
+import org.apache.commons.configuration.HierarchicalConfiguration;
+import org.onlab.packet.VlanId;
+import org.onosproject.net.device.DefaultDeviceInterfaceDescription;
+import org.onosproject.net.device.DeviceInterfaceDescription;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Parser for Netconf XML configurations and replies from Cisco devices.
+ */
+public final class XmlParserCisco {
+
+    private static final String TRUNK_MODE_KEY =
+            "ConfigIf-Configuration.switchport.mode.trunk";
+    private static final String ACCESS_KEY =
+            "ConfigIf-Configuration.switchport.access.vlan.VLANIDVLANPortAccessMode";
+    private static final String TRUNK_VLAN_KEY =
+            "ConfigIf-Configuration.switchport.trunk.allowed.vlan.VLANIDsAllowedVLANsPortTrunkingMode";
+    private static final String RATE_LIMIT_KEY =
+            "ConfigIf-Configuration.srr-queue.bandwidth.limit.EnterBandwidthLimitInterfaceAsPercentage";
+    private static final short NO_LIMIT = -1;
+
+    private XmlParserCisco() {
+        // Not to be called.
+    }
+
+    /**
+     * Parses device configuration and returns the descriptions of the device
+     * interfaces.
+     *
+     * @param cfg an hierarchical configuration
+     * @return list of interface descriptions for the device
+     */
+
+    public static List<DeviceInterfaceDescription> getInterfacesFromConfig(
+            HierarchicalConfiguration cfg) {
+        List<DeviceInterfaceDescription> intfs = Lists.newArrayList();
+        List<HierarchicalConfiguration> subtrees =
+                cfg.configurationsAt("data.xml-config-data.Device-Configuration.interface");
+        for (HierarchicalConfiguration intfConfig :subtrees) {
+            String intfName = getInterfaceName(intfConfig);
+            DeviceInterfaceDescription.Mode intfMode = getInterfaceMode(intfConfig);
+            List<VlanId> intfVlans = getInterfaceVlans(intfConfig, intfMode);
+            short intfLimit = getInterfaceLimit(intfConfig);
+            boolean intfLimited = (intfLimit == NO_LIMIT ?  false : true);
+            DeviceInterfaceDescription intf =
+                    new DefaultDeviceInterfaceDescription(intfName,
+                                                          intfMode,
+                                                          intfVlans,
+                                                          intfLimited,
+                                                          intfLimit);
+            intfs.add(intf);
+        }
+        return intfs;
+    }
+
+    private static String getInterfaceName(HierarchicalConfiguration intfConfig) {
+        return intfConfig.getString("Param");
+    }
+
+    private static DeviceInterfaceDescription.Mode
+    getInterfaceMode(HierarchicalConfiguration intfConfig) {
+        if (intfConfig.containsKey(TRUNK_MODE_KEY)) {
+            return DeviceInterfaceDescription.Mode.TRUNK;
+        } else if (intfConfig.containsKey(ACCESS_KEY)) {
+            return DeviceInterfaceDescription.Mode.ACCESS;
+        } else {
+            return DeviceInterfaceDescription.Mode.NORMAL;
+        }
+    }
+
+    private static List<VlanId> getInterfaceVlans(
+            HierarchicalConfiguration intfConfig,
+            DeviceInterfaceDescription.Mode mode) {
+        List<VlanId> vlans = Lists.newArrayList();
+        if (mode == DeviceInterfaceDescription.Mode.ACCESS) {
+            vlans.add(getVlanForAccess(intfConfig));
+        } else if (mode == DeviceInterfaceDescription.Mode.TRUNK) {
+            vlans.addAll(getVlansForTrunk(intfConfig));
+        }
+        return vlans;
+    }
+
+    private static VlanId getVlanForAccess(HierarchicalConfiguration intfConfig) {
+        if (intfConfig.containsKey(ACCESS_KEY)) {
+            return VlanId.vlanId(intfConfig.getString(ACCESS_KEY));
+        }
+        return null;
+    }
+
+    private static List<VlanId> getVlansForTrunk(HierarchicalConfiguration intfConfig) {
+        if (intfConfig.containsKey(TRUNK_VLAN_KEY)) {
+            return parseVlans(intfConfig.getStringArray(TRUNK_VLAN_KEY));
+        }
+        return null;
+    }
+
+    private static List<VlanId> parseVlans(String[] vlansString) {
+        List<VlanId> vlans = Lists.newArrayList();
+        List<String> items = Arrays.asList(vlansString);
+        for (String item: items) {
+            int index = item.indexOf("-");
+            if (index == -1) {
+                // Not a range o values
+                vlans.add(VlanId.vlanId(item));
+            } else {
+                // A range of values separated with "-"
+                short lowerVlan = Short.parseShort(item.substring(0, index));
+                short higherVlan = Short.parseShort(item.substring(index + 1));
+                for (short i = lowerVlan; i <= higherVlan; i++) {
+                    vlans.add(VlanId.vlanId(i));
+                }
+            }
+        }
+        return vlans;
+    }
+
+    private static short getInterfaceLimit(HierarchicalConfiguration intfConfig) {
+        if (intfConfig.containsKey(RATE_LIMIT_KEY)) {
+            return intfConfig.getShort(RATE_LIMIT_KEY);
+        }
+        return NO_LIMIT;
+    }
+}

+/*
+ * 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.cisco;
+
+import com.google.common.collect.Lists;
+import org.apache.commons.configuration.HierarchicalConfiguration;
+import org.junit.Test;
+import org.onlab.packet.VlanId;
+import org.onosproject.drivers.utilities.XmlConfigParser;
+import org.onosproject.net.device.DefaultDeviceInterfaceDescription;
+import org.onosproject.net.device.DeviceInterfaceDescription;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Tests the parser for Netconf XML configurations and replies from Cisco devices.
+ */
+public class XmlParserCiscoTest {
+
+    private static final String INTF_NAME_1 = "GigabitEthernet0/1";
+    private static final String INTF_NAME_2 = "GigabitEthernet0/2";
+    private static final String INTF_NAME_3 = "GigabitEthernet0/3";
+    private static final String INTF_NAME_4 = "GigabitEthernet0/4";
+    private static final String INTF_NAME_5 = "GigabitEthernet0/5";
+    private static final VlanId ACCESS_VLAN = VlanId.vlanId((short) 100);
+    private static final VlanId TRUNK_VLAN_1 = VlanId.vlanId((short) 200);
+    private static final VlanId TRUNK_VLAN_2 = VlanId.vlanId((short) 201);
+    private static final VlanId TRUNK_VLAN_3 = VlanId.vlanId((short) 300);
+    private static final VlanId TRUNK_VLAN_4 = VlanId.vlanId((short) 301);
+    private static final VlanId TRUNK_VLAN_5 = VlanId.vlanId((short) 302);
+    private static final short NO_RATE_LIMIT = -1;
+    private static final short RATE_LIMIT_1 = 75;
+    private static final short RATE_LIMIT_2 = 50;
+    private static final boolean NO_LIMIT = false;
+    private static final boolean WITH_LIMIT = true;
+    private static final String CONFIG_XML_FILE = "/testGetConfig.xml";
+
+    @Test
+    public void controllersConfig() {
+        InputStream streamOrig = getClass().getResourceAsStream(CONFIG_XML_FILE);
+        HierarchicalConfiguration cfgOrig = XmlConfigParser.loadXml(streamOrig);
+        List<DeviceInterfaceDescription> actualIntfs =
+                XmlParserCisco.getInterfacesFromConfig(cfgOrig);
+        assertEquals("Interfaces were not retrieved from configuration",
+                     getExpectedIntfs(), actualIntfs);
+    }
+
+    private List<DeviceInterfaceDescription> getExpectedIntfs() {
+        List<DeviceInterfaceDescription> intfs = new ArrayList<>();
+        intfs.add(new DefaultDeviceInterfaceDescription(INTF_NAME_1,
+                                                        DeviceInterfaceDescription.Mode.NORMAL,
+                                                        Lists.newArrayList(),
+                                                        NO_LIMIT,
+                                                        NO_RATE_LIMIT));
+
+        List<VlanId> accessList = new ArrayList<>();
+        accessList.add(ACCESS_VLAN);
+        intfs.add(new DefaultDeviceInterfaceDescription(INTF_NAME_2,
+                                                        DeviceInterfaceDescription.Mode.ACCESS,
+                                                        accessList,
+                                                        NO_LIMIT,
+                                                        NO_RATE_LIMIT));
+
+        List<VlanId> trunkList1 = new ArrayList<>();
+        trunkList1.add(TRUNK_VLAN_1);
+        trunkList1.add(TRUNK_VLAN_2);
+        intfs.add(new DefaultDeviceInterfaceDescription(INTF_NAME_3,
+                                                        DeviceInterfaceDescription.Mode.TRUNK,
+                                                        trunkList1,
+                                                        NO_LIMIT,
+                                                        NO_RATE_LIMIT));
+
+        intfs.add(new DefaultDeviceInterfaceDescription(INTF_NAME_4,
+                                                        DeviceInterfaceDescription.Mode.NORMAL,
+                                                        Lists.newArrayList(),
+                                                        WITH_LIMIT,
+                                                        RATE_LIMIT_1));
+
+        List<VlanId> trunkList2 = new ArrayList<>();
+        trunkList2.add(TRUNK_VLAN_3);
+        trunkList2.add(TRUNK_VLAN_4);
+        trunkList2.add(TRUNK_VLAN_5);
+        intfs.add(new DefaultDeviceInterfaceDescription(INTF_NAME_5,
+                                                        DeviceInterfaceDescription.Mode.TRUNK,
+                                                        trunkList2,
+                                                        WITH_LIMIT,
+                                                        RATE_LIMIT_2));
+        return intfs;
+    }
+}
\ No newline at end of file

+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  -->
+    <rpc-reply message-id="101" xmlns="urn:ietf:params:netconf:base:1.0">
+    <data><xml-config-data><Device-Configuration xmlns="urn:cisco:xml-pi">
+    <version><Param>15.0</Param></version>
+    <service operation="delete" ><pad/></service>
+    <service><timestamps><debug><datetime><msec/></datetime></debug></timestamps></service>
+    <service><timestamps><log><datetime><msec/></datetime></log></timestamps></service>
+    <service operation="delete" ><password-encryption/></service>
+    <hostname><SystemNetworkName>switch02</SystemNetworkName></hostname>
+    <boot-start-marker></boot-start-marker>
+    <boot-end-marker></boot-end-marker>
+    <system><mtu><routing><MTUSizeBytes>1500</MTUSizeBytes></routing></mtu></system>
+    <mls><qos/></mls>
+    <cts operation="delete" ><server><test><all><enable/></all></test></server></cts>
+    <X-Interface>cts server test all idle-time 0</X-Interface>
+    <X-Interface>cts server test all deadtime 0</X-Interface>
+    <spanning-tree><mode><pvst/></mode></spanning-tree>
+    <spanning-tree><extend><system-id/></extend></spanning-tree>
+    <vlan><internal><allocation><policy><ascending/></policy></allocation></internal></vlan>
+    <lldp><run/></lldp>
+    <interface><Param>GigabitEthernet0/1</Param>
+        <ConfigIf-Configuration>
+        </ConfigIf-Configuration>
+    </interface>
+    <interface><Param>GigabitEthernet0/2</Param>
+        <ConfigIf-Configuration>
+            <switchport><access><vlan><VLANIDVLANPortAccessMode>100</VLANIDVLANPortAccessMode></vlan></access></switchport>
+        </ConfigIf-Configuration>
+    </interface>
+    <interface><Param>GigabitEthernet0/3</Param>
+        <ConfigIf-Configuration>
+            <switchport><trunk><encapsulation><dot1q/></encapsulation></trunk></switchport>
+            <switchport><trunk><allowed><vlan><VLANIDsAllowedVLANsPortTrunkingMode>200,201</VLANIDsAllowedVLANsPortTrunkingMode></vlan></allowed></trunk></switchport>
+            <switchport><mode><trunk/></mode></switchport>
+        </ConfigIf-Configuration>
+    </interface>
+    <interface><Param>GigabitEthernet0/4</Param>
+        <ConfigIf-Configuration>
+            <srr-queue><bandwidth><limit><EnterBandwidthLimitInterfaceAsPercentage>75</EnterBandwidthLimitInterfaceAsPercentage></limit></bandwidth></srr-queue>
+        </ConfigIf-Configuration>
+    </interface>
+    <interface><Param>GigabitEthernet0/5</Param>
+        <ConfigIf-Configuration>
+            <switchport><trunk><encapsulation><dot1q/></encapsulation></trunk></switchport>
+            <switchport><trunk><allowed><vlan><VLANIDsAllowedVLANsPortTrunkingMode>300-302</VLANIDsAllowedVLANsPortTrunkingMode></vlan></allowed></trunk></switchport>
+            <switchport><mode><trunk/></mode></switchport>
+            <srr-queue><bandwidth><limit><EnterBandwidthLimitInterfaceAsPercentage>50</EnterBandwidthLimitInterfaceAsPercentage></limit></bandwidth></srr-queue>
+        </ConfigIf-Configuration>
+    </interface>
+    <ip><http><server/></http></ip>
+    <ip><http><secure-server/></http></ip>
+    <netconf><max-sessions><MaxNETCONFSessions>5</MaxNETCONFSessions></max-sessions></netconf>
+    <netconf><lock-time><MaxNETCONFConfigLockTimeSeconds>120</MaxNETCONFConfigLockTimeSeconds></lock-time></netconf>
+    <netconf><ssh/></netconf>
+    <end></end>
+</Device-Configuration></xml-config-data></data></rpc-reply>