Adding Gluon App code to support EVPN

Change-Id: I24aee104482a166e412e5e7b42ea1dbf518d51c6
diff --git a/apps/gluon/src/main/java/org/onosproject/gluon/manager/GluonManager.java b/apps/gluon/src/main/java/org/onosproject/gluon/manager/GluonManager.java
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+++ b/apps/gluon/src/main/java/org/onosproject/gluon/manager/GluonManager.java
@@ -0,0 +1,131 @@
+/*
+ * 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.gluon.manager;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onosproject.core.CoreService;
+import org.onosproject.gluon.rsc.GluonConfig;
+import org.onosproject.gluon.rsc.GluonServer;
+import org.onosproject.net.config.ConfigFactory;
+import org.onosproject.net.config.NetworkConfigRegistry;
+import org.onosproject.net.config.basics.SubjectFactories;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * Gluon Shim Application.
+ */
+@Component(immediate = true)
+public class GluonManager {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+    private static final String APP_ID = "org.onosproject.gluon";
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected CoreService coreService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected NetworkConfigRegistry configRegistry;
+
+
+    private final ConfigFactory configFactory =
+            new ConfigFactory(SubjectFactories.APP_SUBJECT_FACTORY,
+                              GluonConfig.class, "gluon") {
+                @Override
+                public GluonConfig createConfig() {
+                    return new GluonConfig();
+                }
+            };
+
+    public static Map<String, GluonServer> serverMap = new LinkedHashMap<>();
+
+    @Activate
+    public void activate() {
+        coreService.registerApplication(APP_ID);
+        configRegistry.registerConfigFactory(configFactory);
+        log.info("Gluon app Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        configRegistry.unregisterConfigFactory(configFactory);
+        log.info("Gluon app Stopped");
+    }
+
+    /**
+     * Creating gluon server object.
+     *
+     * @param etcduri         server url
+     * @param targetProtonKey server key type, default net-l3vpn
+     * @param mode            server mode start or stop
+     * @param version         running server version
+     */
+    public static void createServer(String etcduri, String targetProtonKey,
+                                    String mode, String version) {
+        new GluonServer(etcduri, targetProtonKey, mode, version);
+    }
+
+    /**
+     * Deleting gluon server from server list.
+     *
+     * @param etcduri server url
+     */
+    public static void deleteServer(String etcduri) {
+        for (Map.Entry<String, GluonServer> server : serverMap.entrySet()) {
+            if (etcduri.equals(server.getKey())) {
+                serverMap.remove(etcduri);
+                return;
+            }
+        }
+    }
+
+    /**
+     * Add server into map.
+     *
+     * @param etcduri     server url
+     * @param gluonObject store server object
+     */
+    public static void addServer(String etcduri, GluonServer gluonObject) {
+        serverMap.put(etcduri, gluonObject);
+    }
+
+    /**
+     * Returns serverMap size.
+     *
+     * @return total number of servers
+     */
+    public static int getTotalServers() {
+        return serverMap.size();
+    }
+
+    /**
+     * Returns all server IPs.
+     *
+     * @return serverMap
+     */
+    public static Map<String, GluonServer> getAllServersIP() {
+        return serverMap;
+    }
+
+
+}
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