import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Map.Entry;
+import java.util.Properties;
+import java.util.Set;
import java.util.Vector;
+import javax.validation.constraints.NotNull;
+
import org.oransc.policyagent.exceptions.ServiceException;
-class ApplicationConfigParser {
+public class ApplicationConfigParser {
private static final String CONFIG = "config";
+
private static Gson gson = new GsonBuilder() //
.serializeNulls() //
.create(); //
private Vector<RicConfig> ricConfig;
+ private Properties dmaapConsumerConfig;
public ApplicationConfigParser() {
}
public void parse(JsonObject root) throws ServiceException {
- JsonObject config = root.getAsJsonObject(CONFIG);
- ricConfig = parseRics(config);
+ JsonObject ricConfigJson = root.getAsJsonObject(CONFIG);
+ ricConfig = parseRics(ricConfigJson);
+ JsonObject dmaapConfigJson = root.getAsJsonObject("streams_subscribes");
+ dmaapConsumerConfig = parseDmaapConsumerConfig(dmaapConfigJson);
}
public Vector<RicConfig> getRicConfigs() {
return this.ricConfig;
}
+ public Properties getDmaapConsumerConfig() {
+ return dmaapConsumerConfig;
+ }
+
private Vector<RicConfig> parseRics(JsonObject config) throws ServiceException {
Vector<RicConfig> result = new Vector<RicConfig>();
for (JsonElement ricElem : getAsJsonArray(config, "ric")) {
return elem;
}
- private static String getAsString(JsonObject obj, String memberName) throws ServiceException {
- return get(obj, memberName).getAsString();
+ private JsonArray getAsJsonArray(JsonObject obj, String memberName) throws ServiceException {
+ return get(obj, memberName).getAsJsonArray();
+ }
+
+ private Properties parseDmaapConsumerConfig(JsonObject consumerCfg) throws ServiceException {
+ Set<Entry<String, JsonElement>> topics = consumerCfg.entrySet();
+ if (topics.size() != 1) {
+ throw new ServiceException("Invalid configuration, number of topic must be one, config: " + topics);
+ }
+ JsonObject topic = topics.iterator().next().getValue().getAsJsonObject();
+ JsonObject dmaapInfo = get(topic, "dmaap_info").getAsJsonObject();
+ String topicUrl = getAsString(dmaapInfo, "topic_url");
+
+ Properties dmaapProps = new Properties();
+ try {
+ URL url = new URL(topicUrl);
+ String passwd = "";
+ String userName = "";
+ if (url.getUserInfo() != null) {
+ String[] userInfo = url.getUserInfo().split(":");
+ userName = userInfo[0];
+ passwd = userInfo[1];
+ }
+ String urlPath = url.getPath();
+ DmaapConsumerUrlPath path = parseDmaapUrlPath(urlPath);
+
+ dmaapProps.put("port", url.getPort());
+ dmaapProps.put("server", url.getHost());
+ dmaapProps.put("topic", path.dmaapTopicName);
+ dmaapProps.put("consumerGroup", path.consumerGroup);
+ dmaapProps.put("consumerInstance", path.consumerId);
+ dmaapProps.put("fetchTimeout", 15000);
+ dmaapProps.put("fetchLimit", 1000);
+ dmaapProps.put("userName", userName);
+ dmaapProps.put("password", passwd);
+ } catch (MalformedURLException e) {
+ throw new ServiceException("Could not parse the URL", e);
+ }
+
+ return dmaapProps;
}
- private static JsonObject getAsJson(JsonObject obj, String memberName) throws ServiceException {
- return get(obj, memberName).getAsJsonObject();
+ private static @NotNull String getAsString(JsonObject obj, String memberName) throws ServiceException {
+ return get(obj, memberName).getAsString();
}
- private JsonArray getAsJsonArray(JsonObject obj, String memberName) throws ServiceException {
- return get(obj, memberName).getAsJsonArray();
+ private class DmaapConsumerUrlPath {
+ final String dmaapTopicName;
+ final String consumerGroup;
+ final String consumerId;
+
+ DmaapConsumerUrlPath(String dmaapTopicName, String consumerGroup, String consumerId) {
+ this.dmaapTopicName = dmaapTopicName;
+ this.consumerGroup = consumerGroup;
+ this.consumerId = consumerId;
+ }
}
+ private DmaapConsumerUrlPath parseDmaapUrlPath(String urlPath) throws ServiceException {
+ String[] tokens = urlPath.split("/"); // /events/A1-P/users/sdnc1
+ if (tokens.length != 5) {
+ throw new ServiceException("The path has incorrect syntax: " + urlPath);
+ }
+
+ final String dmaapTopicName = tokens[1] + "/" + tokens[2]; // /events/A1-P
+ final String consumerGroup = tokens[3]; // users
+ final String consumerId = tokens[4]; // sdnc1
+ return new DmaapConsumerUrlPath(dmaapTopicName, consumerGroup, consumerId);
+ }
}