restart vBNG based on XOS's record
re-set up the private IP address to public IP address mapping
based on the mapping record in XOS.
re-calculates and re-installs all the intents.
Change-Id: I89aa75662da596b9793e02ba41398a43517ccecf
diff --git a/apps/virtualbng/src/main/java/org/onosproject/virtualbng/RestClient.java b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/RestClient.java
new file mode 100644
index 0000000..b5c1322
--- /dev/null
+++ b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/RestClient.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2015 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.virtualbng;
+
+import static com.google.common.net.MediaType.JSON_UTF_8;
+import static java.net.HttpURLConnection.HTTP_OK;
+import static org.slf4j.LoggerFactory.getLogger;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.sun.jersey.api.client.Client;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.WebResource;
+
+import java.io.IOException;
+
+import org.slf4j.Logger;
+
+public class RestClient {
+ private final Logger log = getLogger(getClass());
+ private final String hostName = "10.254.1.22";
+ private final int xosServerPort = 8000;
+ private static final String UTF_8 = JSON_UTF_8.toString();
+ private static final ObjectMapper MAPPER = new ObjectMapper();
+ private final String url = "http://" + hostName + ":" + xosServerPort
+ + "/xoslib/rs/vbng_mapping/";
+
+ /**
+ * Gets a client web resource builder.
+ *
+ * @param url the URL to access remote resource
+ * @return web resource builder
+ */
+ public WebResource.Builder getClientBuilder(String url) {
+ log.info("URL: {}", url);
+ Client client = Client.create();
+ WebResource resource = client.resource(url);
+ return resource.accept(UTF_8).type(UTF_8);
+ }
+
+ /**
+ * Builds a REST client and fetches XOS mapping data in JSON format.
+ *
+ * @return the vBNG map if REST GET succeeds, otherwise return null
+ */
+ public ObjectNode getRest() {
+ WebResource.Builder builder = getClientBuilder(url);
+ ClientResponse response = builder.get(ClientResponse.class);
+
+ if (response.getStatus() != HTTP_OK) {
+ log.info("REST GET request returned error code {}",
+ response.getStatus());
+ return null;
+ }
+
+ String jsonString = response.getEntity(String.class);
+ log.info("Fetched JSON string: {}", jsonString);
+
+ JsonNode node;
+ try {
+ node = MAPPER.readTree(jsonString);
+ } catch (IOException e) {
+ log.error("Failed to read JSON string", e);
+ return null;
+ }
+
+ return (ObjectNode) node;
+ }
+}