diff options
Diffstat (limited to 'src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java')
| -rw-r--r-- | src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java b/src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java deleted file mode 100644 index ed42a5a4..00000000 --- a/src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java +++ /dev/null @@ -1,186 +0,0 @@ -/*-
- * ============LICENSE_START=======================================================
- * PROJECT
- * ================================================================================
- * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
- * ================================================================================
- * 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.dcae.controller;
-
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import org.json.JSONArray;
-import org.json.JSONObject;
-import org.json.JSONTokener;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.*;
-import java.util.Map;
-
-public class FetchDynamicConfig {
-
- private static final Logger log = LoggerFactory.getLogger(FetchDynamicConfig.class);
-
- public static String configFile = "/opt/app/KV-Configuration.json";
- public static String retString;
- public static String retCBSString;
- private static String url;
- private static Map<String, String> env;
-
- public FetchDynamicConfig() {
- }
-
- public static void main(String[] args) {
- Boolean areEqual;
- // Call consul api and identify the CBS Service address and port
- getconsul();
- // Construct and invoke CBS API to get application Configuration
- getCBS();
- // Verify if data has changed
- areEqual = verifyConfigChange();
- // If new config then write data returned into configFile for
- // LoadDynamicConfig process
- if (!areEqual) {
- FetchDynamicConfig fc = new FetchDynamicConfig();
- fc.writefile(retCBSString);
- } else {
- log.info("New config pull results identical - " + configFile + " NOT refreshed");
- }
- }
-
- private static void getconsul() {
-
- env = System.getenv();
- for (Map.Entry<String, String> entry : env.entrySet()) {
- log.info(entry.getKey() + ":" + entry.getValue());
- }
-
- if (env.containsKey("CONSUL_HOST") && env.containsKey("CONFIG_BINDING_SERVICE")) {
- // && env.containsKey("HOSTNAME")) {
- log.info(">>>Dynamic configuration to be fetched from ConfigBindingService");
- url = env.get("CONSUL_HOST") + ":8500/v1/catalog/service/" + env.get("CONFIG_BINDING_SERVICE");
-
- retString = executecurl(url);
-
- } else {
- log.info(">>>Static configuration to be used");
- }
-
- }
-
- public static boolean verifyConfigChange() {
-
- boolean areEqual = false;
- // Read current data
- try {
- File f = new File(configFile);
- if (f.exists() && !f.isDirectory()) {
-
- String jsonData = LoadDynamicConfig.readFile(configFile);
- JSONObject jsonObject = new JSONObject(jsonData);
-
- ObjectMapper mapper = new ObjectMapper();
-
- JsonNode tree1 = mapper.readTree(jsonObject.toString());
- JsonNode tree2 = mapper.readTree(retCBSString);
- areEqual = tree1.equals(tree2);
- log.info("Comparison value:" + areEqual);
- } else {
- log.info("First time config file read: " + configFile);
- }
-
- } catch (IOException e) {
- log.error("Comparison with new fetched data failed" + e.getMessage());
-
- }
-
- return areEqual;
-
- }
-
- public static void getCBS() {
-
- env = System.getenv();
- // consul return as array
- JSONTokener temp = new JSONTokener(retString);
- JSONObject cbsjobj = (JSONObject) new JSONArray(temp).get(0);
-
- String urlPart1 = null;
- if (cbsjobj.has("ServiceAddress") && cbsjobj.has("ServicePort")) {
- urlPart1 = cbsjobj.getString("ServiceAddress") + ":" + cbsjobj.getInt("ServicePort");
- }
-
- log.info("CONFIG_BINDING_SERVICE DNS RESOLVED:" + urlPart1);
-
- if (env.containsKey("HOSTNAME")) {
- url = urlPart1 + "/service_component/" + env.get("HOSTNAME");
- retCBSString = executecurl(url);
- } else if (env.containsKey("SERVICE_NAME")) {
- url = urlPart1 + "/service_component/" + env.get("SERVICE_NAME");
- retCBSString = executecurl(url);
- } else {
- log.error("Service name environment variable - HOSTNAME/SERVICE_NAME not found within container ");
- }
-
- }
-
- private static String executecurl(String url) {
-
- String[] command = {"curl", "-v", url};
- ProcessBuilder process = new ProcessBuilder(command);
- Process p;
- String result = null;
- try {
- p = process.start();
- InputStreamReader ipr = new InputStreamReader(p.getInputStream());
- BufferedReader reader = new BufferedReader(ipr);
- StringBuilder builder = new StringBuilder();
- String line;
-
- while ((line = reader.readLine()) != null) {
- builder.append(line);
- }
- result = builder.toString();
- log.info(result);
-
- reader.close();
- ipr.close();
- } catch (IOException e) {
- log.error("error", e);
- e.printStackTrace();
- }
- return result;
-
- }
-
- public void writefile(String retCBSString) {
- log.info("URL to fetch configuration:" + url + " Return String:" + retCBSString);
-
- String indentedretstring = (new JSONObject(retCBSString)).toString(4);
-
- try (FileWriter file = new FileWriter(FetchDynamicConfig.configFile)) {
- file.write(indentedretstring);
-
- log.info("Successfully Copied JSON Object to file " + configFile);
- } catch (IOException e) {
- log.error("Error in writing configuration into file " + configFile + retString + e.getMessage());
- e.printStackTrace();
- }
-
- }
-
-}
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