Examples with HttpRequest co.cask.common.http.HttpRequest used on opensource projects

Example 96 with HttpRequest

use of co.cask.common.http.HttpRequest in project cdap by caskdata.

the class ClientMessagingService method listTopics.

@Override
public List<TopicId> listTopics(NamespaceId namespaceId) throws IOException {
    HttpRequest request = remoteClient.requestBuilder(HttpMethod.GET, namespaceId.getNamespace() + "/topics").build();
    HttpResponse response = remoteClient.execute(request);
    handleError(response, "Failed to list topics in namespace " + namespaceId);
    List<String> topics = GSON.fromJson(response.getResponseBodyAsString(), TOPIC_LIST_TYPE);
    List<TopicId> result = new ArrayList<>(topics.size());
    for (String topic : topics) {
        result.add(namespaceId.topic(topic));
    }
    return Collections.unmodifiableList(result);
}

Example 97 with HttpRequest

use of co.cask.common.http.HttpRequest in project cdap by caskdata.

the class HDFSNodes method getNumDataNodes.

private int getNumDataNodes() throws IOException, JSONException {
    int dataNodes = 0;
    URL url = new URL(getWebURL() + "/jmx");
    HttpRequest request = HttpRequest.get(url).build();
    HttpResponse response = HttpRequests.execute(request);
    JSONObject responseJSON = new JSONObject(response.getResponseBodyAsString());
    JSONArray array = responseJSON.getJSONArray("beans");
    for (int idx = 0; idx < array.length(); ++idx) {
        if (array.getJSONObject(idx).get("name").equals("Hadoop:service=NameNode,name=FSNamesystemState")) {
            dataNodes = array.getJSONObject(idx).getInt("NumLiveDataNodes");
            break;
        }
    }
    return dataNodes;
}