Proposal to remove OSGi dependencies from the CCSDK project

Dependencies on the OSGi frameworks and libraries are removed
by integrating the CCSDK project with the lighty.io.
It's a toolkit that allows to use ODL services (in this case
core services and the Restconf) without the dependency
on the Karaf framework and the Blueprint DI.

In this change are created the lighty.io modules which
initialize and expose same services as the Blueprint DI in
the blueprint.xml files.

More info about the lighty.io - https://lighty.io

Change-Id: I3e549e19374ccf04bc430b515e1df7d8d61d8ea7
Signed-off-by: Matej Perina <matej.perina@pantheon.tech>
Signed-off-by: Samuel Kontris <samuel.kontris@pantheon.tech>

3 files changed, 107 insertions, 0 deletions

diff --git a/restconf-client/lighty/pom.xml b/restconf-client/lighty/pom.xml
new file mode 100755
index 000000000..86e8af30d
--- /dev/null
+++ b/restconf-client/lighty/pom.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>org.onap.ccsdk.parent</groupId>
+		<artifactId>binding-parent</artifactId>
+		<version>1.4.0-SNAPSHOT</version>
+		<relativePath/>
+	</parent>
+
+	<groupId>org.onap.ccsdk.sli.northbound</groupId>
+	<artifactId>restconf-client-lighty</artifactId>
+	<version>0.6.0-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>ccsdk-sli-plugins :: restconf-client :: ${project.artifactId}</name>
+	<url>http://maven.apache.org</url>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>org.onap.ccsdk.sli.core</groupId>
+				<artifactId>ccsdk-lighty-dependency-versions</artifactId>
+				<version>${project.version}</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+
+	<dependencies>
+		<dependency>
+			<groupId>io.lighty.core</groupId>
+			<artifactId>lighty-controller</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.plugins</groupId>
+			<artifactId>restconf-client-provider</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+	</dependencies>
+</project>
diff --git a/restconf-client/lighty/src/main/java/org/onap/ccsdk/sli/plugins/restconf/lighty/RestconfClientModule.java b/restconf-client/lighty/src/main/java/org/onap/ccsdk/sli/plugins/restconf/lighty/RestconfClientModule.java
new file mode 100644
index 000000000..bb0fc90da
--- /dev/null
+++ b/restconf-client/lighty/src/main/java/org/onap/ccsdk/sli/plugins/restconf/lighty/RestconfClientModule.java
@@ -0,0 +1,59 @@
+/*
+ * ============LICENSE_START==========================================
+ * Copyright (c) 2019 PANTHEON.tech s.r.o.
+ * ===================================================================
+ * 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.
+ * ============LICENSE_END============================================
+ *
+ */
+package org.onap.ccsdk.sli.plugins.restconf.lighty;
+
+import io.lighty.core.controller.api.AbstractLightyModule;
+import io.lighty.core.controller.api.LightyModule;
+import org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode;
+import org.onap.ccsdk.sli.plugins.restconfapicall.RestconfApiCallNode;
+import org.onap.ccsdk.sli.plugins.restconfdiscovery.RestconfDiscoveryNode;
+
+/**
+ * The implementation of the {@link io.lighty.core.controller.api.LightyModule} that manages and provides services from
+ * the restconf-client-provider artifact.
+ */
+public class RestconfClientModule extends AbstractLightyModule implements LightyModule {
+
+    private final RestapiCallNode restapiCallNode;
+
+    private RestconfApiCallNode restconfApiCallNode;
+    private RestconfDiscoveryNode restconfDiscoveryNode;
+
+    public RestconfClientModule(final RestapiCallNode restapiCallNode) {
+        this.restapiCallNode = restapiCallNode;
+    }
+
+    @Override
+    protected boolean initProcedure() {
+        this.restconfApiCallNode = new RestconfApiCallNode(restapiCallNode);
+        this.restconfDiscoveryNode = new RestconfDiscoveryNode(restconfApiCallNode);
+        return true;
+    }
+
+    @Override
+    protected boolean stopProcedure() {
+        return true;
+    }
+
+    public RestconfApiCallNode getRestconfApiCallNode() {
+        return this.restconfApiCallNode;
+    }
+
+    public RestconfDiscoveryNode getRestconfDiscoveryNode() {
+        return this.restconfDiscoveryNode;
+    }
+}
diff --git a/restconf-client/pom.xml b/restconf-client/pom.xml
index e8b0123c3..221987d8c 100755
--- a/restconf-client/pom.xml
+++ b/restconf-client/pom.xml
@@ -20,5 +20,6 @@
         <module>provider</module>
         <module>features</module>
         <module>installer</module>
+        <module>lighty</module>
     </modules>
 </project>