[ONOS-6703] ComponentConfigService gRPC and unit tests

Change-Id: I508fcfc36e0619a69f6b479fdedb0fb36babad08
diff --git a/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/ConfigPropertyEnumsProtoTranslator.java b/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/ConfigPropertyEnumsProtoTranslator.java
new file mode 100644
index 0000000..d08e2fa
--- /dev/null
+++ b/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/ConfigPropertyEnumsProtoTranslator.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2017-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.incubator.protobuf.models.cfg;
+
+import org.onosproject.cfg.ConfigProperty.Type;
+import org.onosproject.grpc.cfg.models.ConfigPropertyEnumsProto.ConfigPropertyTypeProto;
+
+/**
+ * gRPC ConfigProperty.Type message to equivalent ONOS enum conversion related utilities.
+ */
+public final class ConfigPropertyEnumsProtoTranslator {
+
+    /**
+     * Translates gRPC ConfigProperty type to {@link Type}.
+     *
+     * @param configPropertyTypeProto config Property proto type
+     * @return {@link Type}
+     */
+    public static Type translate(ConfigPropertyTypeProto configPropertyTypeProto) {
+
+        return Type.valueOf(configPropertyTypeProto.name());
+    }
+
+    /**
+     * Translates {@link Type} to gRPC ConfigProperty type.
+     *
+     * @param type config Property type
+     * @return gRPC ConfigProperty type
+     */
+    public static ConfigPropertyTypeProto translate(Type type) {
+
+        return ConfigPropertyTypeProto.valueOf(type.name());
+    }
+
+    // Utility class not intended for instantiation.
+    private ConfigPropertyEnumsProtoTranslator() {}
+}
diff --git a/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/ConfigPropertyProtoTranslator.java b/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/ConfigPropertyProtoTranslator.java
new file mode 100644
index 0000000..ecf9baf
--- /dev/null
+++ b/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/ConfigPropertyProtoTranslator.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2017-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.incubator.protobuf.models.cfg;
+
+import org.onosproject.cfg.ConfigProperty;
+import org.onosproject.grpc.cfg.models.ConfigPropertyProtoOuterClass.ConfigPropertyProto;
+
+/**
+ * gRPC ConfigPropertyProto message to equivalent ONOS ConfigProperty conversion related utilities.
+ */
+public final class ConfigPropertyProtoTranslator {
+
+    /**
+     * Translates gRPC ConfigProperty message to {@link ConfigProperty}.
+     *
+     * @param configPropertyProto gRPC message
+     * @return {@link ConfigProperty}
+     */
+    public static ConfigProperty translate(ConfigPropertyProto configPropertyProto) {
+
+        ConfigProperty configProperty = ConfigProperty.defineProperty(configPropertyProto.getName(),
+                                                                      ConfigPropertyEnumsProtoTranslator
+                                                                              .translate(configPropertyProto
+                                                                                                 .getType()),
+                                                                      configPropertyProto.getDefaultValue(),
+                                                                      configPropertyProto.getDescriptionBytes()
+                                                                              .toString());
+        return ConfigProperty.setProperty(configProperty, configPropertyProto.getValue());
+    }
+
+    /**
+     * Translates {@link ConfigProperty} to gRPC ConfigProperty message.
+     *
+     * @param configProperty config property
+     * @return gRPC ConfigProperty message
+     */
+    public static ConfigPropertyProto translate(ConfigProperty configProperty) {
+
+        if (configProperty != null) {
+            return ConfigPropertyProto.newBuilder()
+                    .setName(configProperty.name())
+                    .setType(ConfigPropertyEnumsProtoTranslator.translate(configProperty.type()))
+                    .setDefaultValue(configProperty.defaultValue())
+                    .setDescription(configProperty.description())
+                    .setValue(configProperty.value())
+                    .build();
+        }
+
+        return ConfigPropertyProto.getDefaultInstance();
+    }
+
+    // Utility class not intended for instantiation.
+    private ConfigPropertyProtoTranslator() {}
+}
diff --git a/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/package-info.java b/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/package-info.java
new file mode 100644
index 0000000..b0ea47d
--- /dev/null
+++ b/incubator/protobuf/models/src/main/java/org/onosproject/incubator/protobuf/models/cfg/package-info.java
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2017-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.
+ */
+/**
+ * Utilities to handle ProtoBuf version of ONOS network models.
+ */
+package org.onosproject.incubator.protobuf.models.cfg;
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