[ODTN]add NETCONF driver for Infinera and OPENCONFIG handler

Handler can easily create List<CharSequence> of OPENCONFIG by managing
ModelObject and Annotation together.
Handler also gives an alias to ModelObject of the same name in another
package(eg DefaultConfig), making it easier to handle within the same
class.

Change-Id: Ie4481f4020954518dc4c3c6deaced6d9e348c885
diff --git a/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/openconfig/OpenConfigComponentHandler.java b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/openconfig/OpenConfigComponentHandler.java
new file mode 100755
index 0000000..4cb2b18
--- /dev/null
+++ b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/openconfig/OpenConfigComponentHandler.java
@@ -0,0 +1,75 @@
+/*
+ * 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.odtn.utils.openconfig;
+
+import org.onosproject.yang.gen.v1.openconfigplatform.rev20161222.openconfigplatform.platformcomponenttop.components.DefaultComponent;
+import org.onosproject.yang.gen.v1.openconfigplatformtransceiver.rev20170708.openconfigplatformtransceiver.components.component.DefaultAugmentedOcPlatformComponent;
+
+import org.onosproject.yang.model.KeyLeaf;
+
+/**
+ * Utility class to deal with OPENCONFIG Componet ModelObject & Annotation.
+ */
+public final class OpenConfigComponentHandler
+        extends OpenConfigObjectHandler<DefaultComponent> {
+
+    private static final String OPENCONFIG_NAME = "component";
+    private static final String KEY_LEAF_NAME = "name";
+    private static final String NAME_SPACE = "http://openconfig.net/yang/platform";
+
+    private DefaultAugmentedOcPlatformComponent augmentedOcPlatformComponent;
+
+    /**
+     * OpenConfigComponentHandler Constructor.
+     *
+     * @param keyValue String of target OPENCONFIG's key
+     * @param parent OpenConfigComponentsHandler of parent OPENCONFIG(components)
+     */
+    public OpenConfigComponentHandler(String keyValue, OpenConfigComponentsHandler parent) {
+        modelObject = new DefaultComponent();
+        modelObject.name(keyValue);
+        setResourceId(OPENCONFIG_NAME, NAME_SPACE,
+                      new KeyLeaf(KEY_LEAF_NAME, NAME_SPACE, keyValue),
+                      parent.getResourceIdBuilder());
+        annotatedNodeInfos = parent.getAnnotatedNodeInfoList();
+        augmentedOcPlatformComponent = new DefaultAugmentedOcPlatformComponent();
+
+        parent.addComponent(this);
+    }
+
+    /**
+     * Add Transceiver to modelObject of target OPENCONFIG.
+     *
+     * @param transceiver OpenConfigTransceiverHandler having Transceiver to be set for modelObject
+     * @return OpenConfigComponentHandler of target OPENCONFIG
+     */
+    public OpenConfigComponentHandler addTransceiver(OpenConfigTransceiverHandler transceiver) {
+        augmentedOcPlatformComponent.transceiver(transceiver.getModelObject());
+        modelObject.addAugmentation(augmentedOcPlatformComponent);
+        return this;
+    }
+
+    /**
+     * Add Config to modelObject of target OPENCONFIG.
+     *
+     * @param config OpenConfigConfigOfComponentHandler having Config to be set for modelObject
+     * @return OpenConfigComponentHandler of target OPENCONFIG
+     */
+    public OpenConfigComponentHandler addConfig(OpenConfigConfigOfComponentHandler config) {
+        modelObject.config(config.getModelObject());
+        return this;
+    }
+}