public void readClusterFromZk() throws Exception {
List<String> processes;
List<String> tasks;
tasks = zkClient.getChildren(taskPath);
processes = zkClient.getChildren(processPath);
taskNumber = tasks.size();
for (int i = 0; i < processes.size(); i++) {
ZNRecord process = zkClient.readData(processPath + "/" + processes.get(i), true);
if (process != null) {
int partition = Integer.parseInt(process.getSimpleField("partition"));
String host = process.getSimpleField("host");
int port = Integer.parseInt(process.getSimpleField("port"));
String taskId = process.getSimpleField("taskId");
ClusterNode node = new ClusterNode(partition, port, host, taskId);
nodes.add(node);
}
}
app = new App();
app.cluster = clusterName;
try {
ZNRecord appRecord = zkClient.readData(appPath);
app.name = appRecord.getSimpleField("name");
app.uri = appRecord.getSimpleField("s4r_uri");
} catch (ZkNoNodeException e) {
logger.warn(appPath + " doesn't exist");
}
}
private void readStreamFromZk() throws Exception {
List<String> consumerNodes = zkClient.getChildren(consumerPath);
for (String node : consumerNodes) {
ZNRecord consumer = zkClient.readData(consumerPath + "/" + node, true);
consumers.add(consumer.getSimpleField("clusterName"));
}
List<String> producerNodes = zkClient.getChildren(producerPath);
for (String node : producerNodes) {
ZNRecord consumer = zkClient.readData(producerPath + "/" + node, true);
producers.add(consumer.getSimpleField("clusterName"));
}
getAppNames();
}
private static String getApp(String clusterName, ZkClient zkClient) {
String appPath = "/s4/clusters/" + clusterName + "/app/s4App";
if (zkClient.exists(appPath)) {
ZNRecord appRecord = zkClient.readData("/s4/clusters/" + clusterName + "/app/s4App");
return appRecord.getSimpleField("name");
}
return NONE;
}