Enhancement of tetopology implementation

To support regualar network and TE topology

Change-Id: Ib8319212d775c78f49a86a7b7685759099189967
diff --git a/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/TeTopologyConfig.java b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/TeTopologyConfig.java
new file mode 100644
index 0000000..ae2fc0e
--- /dev/null
+++ b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/TeTopologyConfig.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.tetopology.management.impl;
+
+import org.onlab.packet.Ip4Address;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.incubator.net.config.basics.ConfigException;
+import org.onosproject.net.config.Config;
+
+/**
+ * Configuration for TE Topology parameters.
+ */
+public class TeTopologyConfig extends Config<ApplicationId>  {
+    private static final String CONFIG_VALUE_ERROR = "Error parsing config value";
+    private static final String PROVIDER_ID = "provider-id";
+    private static final String TENODE_ID_START = "tenode-id-start";
+    private static final String TENODE_ID_END = "tenode-id-end";
+
+    /**
+      * Retrieves TE topology provider identifier.
+      *
+      * @return provider Id
+      * @throws ConfigException if the parameters are not correctly configured
+      * or conversion of the parameters fails
+      */
+    public long providerId() throws ConfigException {
+        try {
+            return object.path(PROVIDER_ID).asLong();
+        } catch (IllegalArgumentException e) {
+            throw new ConfigException(CONFIG_VALUE_ERROR, e);
+        }
+    }
+
+    /**
+     * Retrieves TE node starting IPv4 address.
+     *
+     * @return the IPv4 address
+     * @throws ConfigException if the parameters are not correctly configured
+     * or conversion of the parameters fails
+     */
+   public Ip4Address teNodeIpStart() throws ConfigException {
+       try {
+           return Ip4Address.valueOf(object.path(TENODE_ID_START).asText());
+       } catch (IllegalArgumentException e) {
+           throw new ConfigException(CONFIG_VALUE_ERROR, e);
+       }
+   }
+
+   /**
+    * Retrieves TE node end IPv4 address.
+    *
+    * @return the IPv4 address
+    * @throws ConfigException if the parameters are not correctly configured
+    * or conversion of the parameters fails
+    */
+  public Ip4Address teNodeIpEnd() throws ConfigException {
+      try {
+          return Ip4Address.valueOf(object.path(TENODE_ID_END).asText());
+      } catch (IllegalArgumentException e) {
+          throw new ConfigException(CONFIG_VALUE_ERROR, e);
+      }
+  }
+
+}