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/*-
* ============LICENSE_START=======================================================
* PROJECT
* ================================================================================
* Copyright (C) 2017 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 java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Iterator;
import java.util.Map;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.json.JSONObject;
public class LoadDynamicConfig {
static String propFile = "collector.properties";
static String configFile = "/opt/app/KV-Configuration.json";
static String url = null;
static String ret_string = null;
public LoadDynamicConfig() {
}
public static void main(String[] args) {
Map<String, String> env = System.getenv();
/*for (String envName : env.keySet()) {
System.out.format("%s=%s%n", envName, env.get(envName));
}*/
//Check again to ensure new controller deployment related config
if (env.containsKey("CONSUL_HOST") &&
env.containsKey("CONFIG_BINDING_SERVICE") && env.containsKey("HOSTNAME"))
{
try {
String jsonData = readFile(configFile);
JSONObject jsonObject = new JSONObject(jsonData);
PropertiesConfiguration conf;
conf = new PropertiesConfiguration(propFile);
conf.setEncoding(null);
if (jsonObject != null) {
// update properties based on consul dynamic configuration
Iterator<?> keys = jsonObject.keys();
while (keys.hasNext()) {
String key = (String) keys.next();
// check if any configuration is related to dmaap
// and write into dmaapconfig.json
if (key.startsWith("streams_publishes")) {
//VESCollector only have publish streams
try (FileWriter file = new FileWriter("./etc/DmaapConfig.json")) {
file.write(jsonObject.get(key).toString());
System.out.println("Successfully written JSON Object to DmaapConfig.json");
} catch (IOException e) {
System.out.println("Error in writing dmaap configuration into DmaapConfig.json");
e.printStackTrace();
}
} else {
conf.setProperty(key, jsonObject.get(key).toString());
}
}
conf.save();
}
} catch (ConfigurationException e) {
e.getMessage();
e.printStackTrace();
}
}
else
{
System.out.println(">>>Static configuration to be used");
}
}
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 = null;
while ((line = reader.readLine()) != null) {
builder.append(line);
}
result = builder.toString();
System.out.println(result);
} catch (IOException e) {
System.out.print("error");
e.printStackTrace();
}
return result;
}
public static String readFile(String filename) {
String result = "";
try {
BufferedReader br = new BufferedReader(new FileReader(filename));
StringBuilder sb = new StringBuilder();
String line = br.readLine();
while (line != null) {
sb.append(line);
line = br.readLine();
}
result = sb.toString();
br.close();
} catch(Exception e) {
e.printStackTrace();
}
return result;
}
}
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