Supports dpdk config in OpenstackNode.

Change-Id: I332d7643acb56c5fa7460edb6e4c90a2d862706f
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/DpdkConfigCodec.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/DpdkConfigCodec.java
new file mode 100644
index 0000000..3e8156d
--- /dev/null
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/DpdkConfigCodec.java
@@ -0,0 +1,95 @@
+/*
+ * 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.
+ */
+package org.onosproject.openstacknode.codec;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.openstacknode.api.DpdkConfig;
+import org.onosproject.openstacknode.api.DpdkInterface;
+import org.onosproject.openstacknode.impl.DefaultDpdkConfig;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.IntStream;
+
+import static org.onlab.util.Tools.nullIsIllegal;
+
+/**
+ * dpdk config codec used for serializing and de-serializing JSON string.
+ */
+public class DpdkConfigCodec extends JsonCodec<DpdkConfig> {
+    private static final String DATA_PATH_TYPE = "datapathType";
+    private static final String SOCKET_DIR = "socketDir";
+    private static final String DPDK_INTFS = "dpdkIntfs";
+
+    private static final String MISSING_MESSAGE = " is required in DpdkInterface";
+
+    @Override
+    public ObjectNode encode(DpdkConfig entity, CodecContext context) {
+        ObjectNode result = context.mapper().createObjectNode()
+                .put(DATA_PATH_TYPE, entity.datapathType().name());
+
+        if (entity.socketDir() != null) {
+            result.put(SOCKET_DIR, entity.socketDir());
+        }
+
+        ArrayNode dpdkIntfs = context.mapper().createArrayNode();
+        entity.dpdkIntfs().forEach(dpdkIntf -> {
+            ObjectNode dpdkIntfJson = context.codec(DpdkInterface.class)
+                    .encode(dpdkIntf, context);
+            dpdkIntfs.add(dpdkIntfJson);
+        });
+        result.set(DPDK_INTFS, dpdkIntfs);
+
+        return result;
+    }
+
+    @Override
+    public DpdkConfig decode(ObjectNode json, CodecContext context) {
+        if (json == null || !json.isObject()) {
+            return null;
+        }
+
+        String datapathType = nullIsIllegal(json.get(DATA_PATH_TYPE).asText(),
+                DATA_PATH_TYPE + MISSING_MESSAGE);
+
+        DefaultDpdkConfig.Builder builder = DefaultDpdkConfig.builder()
+                .datapathType(DpdkConfig.DatapathType.valueOf(datapathType.toUpperCase()));
+
+        if (json.get(SOCKET_DIR) != null) {
+            builder.socketDir(json.get(SOCKET_DIR).asText());
+        }
+
+        List<DpdkInterface> dpdkInterfaces = new ArrayList<>();
+        JsonNode dpdkIntfsJson = json.get(DPDK_INTFS);
+
+        if (dpdkIntfsJson != null) {
+            final JsonCodec<DpdkInterface>
+                    dpdkIntfCodec = context.codec(DpdkInterface.class);
+
+            IntStream.range(0, dpdkIntfsJson.size()).forEach(i -> {
+                ObjectNode intfJson = get(dpdkIntfsJson, i);
+                dpdkInterfaces.add(dpdkIntfCodec.decode(intfJson, context));
+            });
+        }
+        builder.dpdkIntfs(dpdkInterfaces);
+
+        return builder.build();
+    }
+}
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/DpdkInterfaceCodec.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/DpdkInterfaceCodec.java
new file mode 100644
index 0000000..033bfc0
--- /dev/null
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/DpdkInterfaceCodec.java
@@ -0,0 +1,90 @@
+/*
+ * 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.
+ */
+package org.onosproject.openstacknode.codec;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.openstacknode.api.DpdkInterface;
+import org.onosproject.openstacknode.api.DpdkInterface.Type;
+import org.onosproject.openstacknode.impl.DefaultDpdkInterface;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+
+/**
+ * DPDK interface codec used for serializing and de-serializing JSON string.
+ */
+public class DpdkInterfaceCodec extends JsonCodec<DpdkInterface> {
+    private static final String DEVICE_NAME = "deviceName";
+    private static final String INTF = "intf";
+    private static final String PCI_ADDRESS = "pciAddress";
+    private static final String TYPE = "type";
+    private static final String MTU = "mtu";
+
+    private static final String NOT_NULL_MESSAGE = "dpdk interface cannot be null";
+    private static final String MISSING_MESSAGE = " is required in DpdkInterface";
+
+    @Override
+    public ObjectNode encode(DpdkInterface entity, CodecContext context) {
+        checkNotNull(entity, NOT_NULL_MESSAGE);
+
+        return context.mapper().createObjectNode()
+                .put(DEVICE_NAME, entity.deviceName())
+                .put(INTF, entity.intf())
+                .put(PCI_ADDRESS, entity.pciAddress())
+                .put(TYPE, entity.type().name())
+                .put(MTU, entity.mtu().toString());
+    }
+
+    @Override
+    public DpdkInterface decode(ObjectNode json, CodecContext context) {
+        if (json == null || !json.isObject()) {
+            return null;
+        }
+
+        String deviceName = nullIsIllegal(json.get(DEVICE_NAME).asText(),
+                DEVICE_NAME + MISSING_MESSAGE);
+        String intf = nullIsIllegal(json.get(INTF).asText(),
+                INTF + MISSING_MESSAGE);
+        String pciAddress = nullIsIllegal(json.get(PCI_ADDRESS).asText(),
+                PCI_ADDRESS + MISSING_MESSAGE);
+        String typeString = nullIsIllegal(json.get(TYPE).asText(),
+                TYPE + MISSING_MESSAGE);
+
+        Type type;
+        try {
+            type = Type.valueOf(typeString.toUpperCase());
+        } catch (IllegalArgumentException e) {
+            throw new IllegalArgumentException(TYPE + MISSING_MESSAGE);
+        }
+
+        DpdkInterface.Builder builder = DefaultDpdkInterface.builder()
+                .deviceName(deviceName)
+                .intf(intf)
+                .pciAddress(pciAddress)
+                .type(type);
+
+        JsonNode mtuJson = json.get(MTU);
+
+        if (mtuJson != null) {
+            builder.mtu(Long.parseLong(mtuJson.asText()));
+        }
+
+        return builder.build();
+    }
+}
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/OpenstackNodeCodec.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/OpenstackNodeCodec.java
index 5d16199..ad2f08b 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/OpenstackNodeCodec.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/codec/OpenstackNodeCodec.java
@@ -24,6 +24,7 @@
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.behaviour.ControllerInfo;
 import org.onosproject.openstacknode.api.DefaultOpenstackNode;
+import org.onosproject.openstacknode.api.DpdkConfig;
 import org.onosproject.openstacknode.api.NodeState;
 import org.onosproject.openstacknode.api.OpenstackAuth;
 import org.onosproject.openstacknode.api.OpenstackNode;
@@ -61,11 +62,9 @@
     private static final String AUTHENTICATION = "authentication";
     private static final String END_POINT = "endpoint";
     private static final String SSH_AUTH = "sshAuth";
-    private static final String DATA_PATH_TYPE = "datapathType";
-    private static final String SOCKET_DIR = "socketDir";
+    private static final String DPDK_CONFIG = "dpdkConfig";
 
     private static final String MISSING_MESSAGE = " is required in OpenstackNode";
-    private static final String UNSUPPORTED_DATAPATH_TYPE = "Unsupported datapath type";
 
     @Override
     public ObjectNode encode(OpenstackNode node, CodecContext context) {
@@ -75,8 +74,7 @@
                 .put(HOST_NAME, node.hostname())
                 .put(TYPE, node.type().name())
                 .put(STATE, node.state().name())
-                .put(MANAGEMENT_IP, node.managementIp().toString())
-                .put(DATA_PATH_TYPE, node.datapathType().name());
+                .put(MANAGEMENT_IP, node.managementIp().toString());
 
         OpenstackNode.NodeType type = node.type();
 
@@ -128,8 +126,10 @@
             result.set(SSH_AUTH, sshAuthJson);
         }
 
-        if (node.socketDir() != null) {
-            result.put(SOCKET_DIR, node.socketDir());
+        if (node.dpdkConfig() != null) {
+            ObjectNode dpdkConfigJson = context.codec(DpdkConfig.class)
+                    .encode(node.dpdkConfig(), context);
+            result.set(DPDK_CONFIG, dpdkConfigJson);
         }
 
         return result;
@@ -175,23 +175,6 @@
             nodeBuilder.intgBridge(DeviceId.deviceId(intBridgeJson.asText()));
         }
 
-        JsonNode datapathTypeJson = json.get(DATA_PATH_TYPE);
-
-        if (datapathTypeJson == null ||
-                datapathTypeJson.asText().equals(OpenstackNode.DatapathType.NORMAL.name().toLowerCase())) {
-            nodeBuilder.datapathType(OpenstackNode.DatapathType.NORMAL);
-        } else if (datapathTypeJson.asText().equals(OpenstackNode.DatapathType.NETDEV.name().toLowerCase())) {
-            nodeBuilder.datapathType(OpenstackNode.DatapathType.NETDEV);
-        } else {
-            throw new IllegalArgumentException(UNSUPPORTED_DATAPATH_TYPE + datapathTypeJson.asText());
-        }
-
-        JsonNode socketDir = json.get(SOCKET_DIR);
-
-        if (socketDir != null) {
-            nodeBuilder.socketDir(socketDir.asText());
-        }
-
         // parse physical interfaces
         List<OpenstackPhyInterface> phyIntfs = new ArrayList<>();
         JsonNode phyIntfsJson = json.get(PHYSICAL_INTERFACES);
@@ -224,7 +207,7 @@
 
         // parse authentication
         JsonNode authJson = json.get(AUTHENTICATION);
-        if (json.get(AUTHENTICATION) != null) {
+        if (authJson != null) {
 
             final JsonCodec<OpenstackAuth> authCodec = context.codec(OpenstackAuth.class);
 
@@ -234,13 +217,21 @@
 
         // parse ssh authentication
         JsonNode sshAuthJson = json.get(SSH_AUTH);
-        if (json.get(SSH_AUTH) != null) {
+        if (sshAuthJson != null) {
             final JsonCodec<OpenstackSshAuth> sshAuthJsonCodec = context.codec(OpenstackSshAuth.class);
 
             OpenstackSshAuth sshAuth = sshAuthJsonCodec.decode((ObjectNode) sshAuthJson.deepCopy(), context);
             nodeBuilder.sshAuthInfo(sshAuth);
         }
 
+        JsonNode dpdkConfigJson = json.get(DPDK_CONFIG);
+        if (dpdkConfigJson != null) {
+            final JsonCodec<DpdkConfig> dpdkConfigJsonCodec = context.codec(DpdkConfig.class);
+
+            DpdkConfig dpdkConfig = dpdkConfigJsonCodec.decode((ObjectNode) dpdkConfigJson.deepCopy(), context);
+            nodeBuilder.dpdkConfig(dpdkConfig);
+        }
+
         log.trace("node is {}", nodeBuilder.build().toString());
 
         return nodeBuilder.build();