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 | 300 |
1 files changed, 161 insertions, 139 deletions
diff --git a/src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java b/src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java index 95e95747..7b2e0b3b 100644 --- a/src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java +++ b/src/main/java/org/onap/dcae/controller/FetchDynamicConfig.java @@ -1,139 +1,161 @@ -/*- - * ============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 org.json.JSONArray; -import org.json.JSONObject; -import org.json.JSONTokener; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; - -import java.io.BufferedReader; -import java.io.FileWriter; -import java.io.IOException; -import java.io.InputStreamReader; -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"; - static String url; - static String retString; - - public FetchDynamicConfig() { - } - - public static void main(String[] args) { - Map<String, String> env = System.getenv(); - for (Map.Entry<String, String> entry : env.entrySet()) { - log.info("%s=%s%n", 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); - // 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); - FetchDynamicConfig fc= new FetchDynamicConfig(); - if (env.containsKey("HOSTNAME")) - { - url = urlPart1 + "/service_component/" + env.get("HOSTNAME"); - retString = executecurl(url); - } - else if (env.containsKey("SERVICE_NAME")) - { - url = urlPart1 + "/service_component/" + env.get("SERVICE_NAME"); - retString = executecurl(url); - } - else - { - log.error("Service name environment variable - HOSTNAME/SERVICE_NAME not found within container "); - } - fc.writefile(retString); - - - } else { - log.info(">>>Static configuration to be used"); - } - - } - - public void writefile (String retString) - { - log.info("URL to fetch configuration:" + url + " Return String:" + retString); - - - String indentedretstring=(new JSONObject(retString)).toString(4); - - try (FileWriter file = new FileWriter(FetchDynamicConfig.configFile)) { - file.write(indentedretstring); - - log.info("Successfully Copied JSON Object to file /opt/app/KV-Configuration.json"); - } catch (IOException e) { - log.error("Error in writing configuration into file /opt/app/KV-Configuration.json " + retString, e); - e.printStackTrace(); - } - - } - - public 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; - - } - -} +/*-
+ * ============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 org.json.JSONArray;
+import org.json.JSONObject;
+import org.json.JSONTokener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.BufferedReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+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";
+ static String url;
+ public static String retString;
+ public static String retCBSString;
+ public static Map<String, String> env;
+
+ public FetchDynamicConfig() {
+ }
+
+ public static void main(String[] args) {
+
+ //Call consul api and identify the CBS Service address and port
+ getconsul();
+ //Construct and invoke CBS API to get application Configuration
+ getCBS();
+ //Write data returned into configFile for LoadDynamicConfig process to pickup
+ FetchDynamicConfig fc= new FetchDynamicConfig();
+ fc.writefile(retCBSString);
+ }
+
+ public 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 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 ");
+ }
+
+ }
+
+ 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();
+ }
+
+ }
+
+ public 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;
+
+ }
+
+}
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