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: Ia9eed2f60c71b7fc2e93b738c857d290b28e9420
Signed-off-by: Matej Perina <matej.perina@pantheon.tech>
Signed-off-by: Samuel Kontris <samuel.kontris@pantheon.tech>

2 files changed, 234 insertions, 0 deletions

diff --git a/ccsdk-adaptors-lighty/pom.xml b/ccsdk-adaptors-lighty/pom.xml
new file mode 100755
index 00000000..161375ee
--- /dev/null
+++ b/ccsdk-adaptors-lighty/pom.xml
@@ -0,0 +1,59 @@
+<?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>odlparent-lite</artifactId>
+		<version>1.4.0-SNAPSHOT</version>
+		<relativePath/>
+	</parent>
+
+	<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+	<artifactId>ccsdk-adaptors-lighty</artifactId>
+	<version>0.6.0-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.core</groupId>
+			<artifactId>ccsdk-core-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+			<artifactId>aai-service-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+			<artifactId>ansible-adapter-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+			<artifactId>mdsal-resource-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+			<artifactId>netbox-client-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+			<artifactId>resource-assignment-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+			<artifactId>saltstack-adapter-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.onap.ccsdk.sli.adaptors</groupId>
+			<artifactId>sql-resource-lighty</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+	</dependencies>
+</project>
diff --git a/ccsdk-adaptors-lighty/src/main/java/org/onap/ccsdk/sli/adaptors/lighty/CcsdkAdaptorsLightyModule.java b/ccsdk-adaptors-lighty/src/main/java/org/onap/ccsdk/sli/adaptors/lighty/CcsdkAdaptorsLightyModule.java
new file mode 100644
index 00000000..102c01c7
--- /dev/null
+++ b/ccsdk-adaptors-lighty/src/main/java/org/onap/ccsdk/sli/adaptors/lighty/CcsdkAdaptorsLightyModule.java
@@ -0,0 +1,175 @@
+/*
+ * ============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.adaptors.lighty;
+
+import io.lighty.core.controller.api.AbstractLightyModule;
+import org.onap.ccsdk.sli.adaptors.aai.lighty.AaaServiceModule;
+import org.onap.ccsdk.sli.adaptors.ansible.lighty.AnsibleAdapterModule;
+import org.onap.ccsdk.sli.adaptors.netbox.lighty.NetboxClientModule;
+import org.onap.ccsdk.sli.adaptors.resource.lighty.ResourceModule;
+import org.onap.ccsdk.sli.adaptors.resource.mdsal.lighty.MdsalResourceModule;
+import org.onap.ccsdk.sli.adaptors.resource.sql.lighty.SqlModule;
+import org.onap.ccsdk.sli.adaptors.saltstack.lighty.SaltstackAdapterModule;
+import org.onap.ccsdk.sli.core.dblib.DbLibService;
+import org.onap.ccsdk.sli.core.lighty.common.CcsdkLightyUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The implementation of the {@link io.lighty.core.controller.api.LightyModule} that groups all other LightyModules
+ * from the ccsdk-sli-adaptors repository so they can be all treated as one component (for example started/stopped
+ * at once).
+ * For more information about the lighty.io visit the website https://lighty.io.
+ */
+public class CcsdkAdaptorsLightyModule extends AbstractLightyModule {
+
+    private static final Logger LOG = LoggerFactory.getLogger(CcsdkAdaptorsLightyModule.class);
+
+    private DbLibService dbLibService;
+
+    private AaaServiceModule aaaServiceModule;
+    private AnsibleAdapterModule ansibleAdapterModule;
+    private MdsalResourceModule mdsalResourceModule;
+    private NetboxClientModule netboxClientModule;
+    private ResourceModule resourceModule;
+    private SaltstackAdapterModule saltstackAdapterModule;
+    private SqlModule sqlModule;
+
+    public CcsdkAdaptorsLightyModule(DbLibService dbLibService) {
+        this.dbLibService = dbLibService;
+    }
+
+    @Override
+    protected boolean initProcedure() {
+        LOG.debug("Initializing CCSDK Adaptors Lighty module...");
+
+        this.aaaServiceModule = new AaaServiceModule();
+        if (!CcsdkLightyUtils.startLightyModule(aaaServiceModule)) {
+            LOG.error("Unable to start AaaServiceModule in CCSDK Adaptors Lighty module!");
+            return false;
+        }
+
+        this.ansibleAdapterModule = new AnsibleAdapterModule();
+        if (!CcsdkLightyUtils.startLightyModule(ansibleAdapterModule)) {
+            LOG.error("Unable to start AnsibleAdapterModule in CCSDK Adaptors Lighty module!");
+            return false;
+        }
+
+        this.mdsalResourceModule = new MdsalResourceModule();
+        if (!CcsdkLightyUtils.startLightyModule(mdsalResourceModule)) {
+            LOG.error("Unable to start MdsalResourceModule in CCSDK Adaptors Lighty module!");
+            return false;
+        }
+
+        this.netboxClientModule = new NetboxClientModule(dbLibService);
+        if (!CcsdkLightyUtils.startLightyModule(netboxClientModule)) {
+            LOG.error("Unable to start NetboxClientModule in CCSDK Adaptors Lighty module!");
+            return false;
+        }
+
+        this.resourceModule = new ResourceModule(dbLibService);
+        if (!CcsdkLightyUtils.startLightyModule(resourceModule)) {
+            LOG.error("Unable to start ResourceModule in CCSDK Adaptors Lighty module!");
+            return false;
+        }
+
+        this.saltstackAdapterModule = new SaltstackAdapterModule();
+        if (!CcsdkLightyUtils.startLightyModule(saltstackAdapterModule)) {
+            LOG.error("Unable to start SaltstackAdapterModule in CCSDK Adaptors Lighty module!");
+            return false;
+        }
+
+        this.sqlModule = new SqlModule(dbLibService);
+        if (!CcsdkLightyUtils.startLightyModule(sqlModule)) {
+            LOG.error("Unable to start SqlModule in CCSDK Adaptors Lighty module!");
+            return false;
+        }
+
+        LOG.debug("CCSDK Adaptors Lighty module was initialized successfully");
+        return true;
+    }
+
+    @Override
+    protected boolean stopProcedure() {
+        LOG.debug("Stopping CCSDK Adaptors Lighty module...");
+
+        boolean stopSuccessful = true;
+
+        if (!CcsdkLightyUtils.stopLightyModule(sqlModule)) {
+            stopSuccessful = false;
+        }
+
+        if (!CcsdkLightyUtils.stopLightyModule(saltstackAdapterModule)) {
+            stopSuccessful = false;
+        }
+
+        if (!CcsdkLightyUtils.stopLightyModule(resourceModule)) {
+            stopSuccessful = false;
+        }
+
+        if (!CcsdkLightyUtils.stopLightyModule(netboxClientModule)) {
+            stopSuccessful = false;
+        }
+
+        if (!CcsdkLightyUtils.stopLightyModule(mdsalResourceModule)) {
+            stopSuccessful = false;
+        }
+
+        if (!CcsdkLightyUtils.stopLightyModule(ansibleAdapterModule)) {
+            stopSuccessful = false;
+        }
+
+        if (!CcsdkLightyUtils.stopLightyModule(aaaServiceModule)) {
+            stopSuccessful = false;
+        }
+
+        if (stopSuccessful) {
+            LOG.debug("CCSDK Adaptors Lighty module was stopped successfully");
+        } else {
+            LOG.error("CCSDK Adaptors Lighty module was not stopped successfully!");
+        }
+        return stopSuccessful;
+    }
+
+    public AaaServiceModule getAaaServiceModule() {
+        return aaaServiceModule;
+    }
+
+    public AnsibleAdapterModule getAnsibleAdapterModule() {
+        return ansibleAdapterModule;
+    }
+
+    public MdsalResourceModule getMdsalResourceModule() {
+        return mdsalResourceModule;
+    }
+
+    public NetboxClientModule getNetboxClientModule() {
+        return netboxClientModule;
+    }
+
+    public ResourceModule getResourceModule() {
+        return resourceModule;
+    }
+
+    public SaltstackAdapterModule getSaltstackAdapterModule() {
+        return saltstackAdapterModule;
+    }
+
+    public SqlModule getSqlModule() {
+        return sqlModule;
+    }
+}