Package com.splunk.shuttl.archiver.clustering

Source Code of com.splunk.shuttl.archiver.clustering.ShuttlPortEndpoint

// Copyright (C) 2011 Splunk Inc.
//
// Splunk Inc. licenses this file
// to you 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.
package com.splunk.shuttl.archiver.clustering;

import java.net.URI;

import org.apache.http.client.methods.HttpGet;

import com.amazonaws.util.json.JSONException;
import com.amazonaws.util.json.JSONObject;
import com.splunk.Service;
import com.splunk.shuttl.archiver.http.InsecureHttpClientFactory;
import com.splunk.shuttl.archiver.http.JsonRestEndpointCaller;

/**
* Calls splunk instances shuttl port.
*/
public class ShuttlPortEndpoint {

  private final Service service;
  private final JsonRestEndpointCaller restEndpointCaller;

  private ShuttlPortEndpoint(Service service,
      JsonRestEndpointCaller jsonRestEndpointCaller) {
    this.service = service;
    this.restEndpointCaller = jsonRestEndpointCaller;
  }

  /**
   * @return the configured shuttl port of the Splunk instance which the service
   *         is connected to.
   */
  public int getShuttlPort() {
    HttpGet httpGet = createHttpGetRequest();
    JSONObject jsonObject = restEndpointCaller.getJson(httpGet);
    return getShuttlPortFromJSONResponse(jsonObject);
  }

  private HttpGet createHttpGetRequest() {
    URI shuttlPortRequestUri = URI
        .create(service.getScheme() + "://" + service.getHost() + ":"
            + service.getPort() + "/services/shuttl/port");
    HttpGet httpGet = new HttpGet(shuttlPortRequestUri);
    return httpGet;
  }

  private int getShuttlPortFromJSONResponse(JSONObject jsonObject) {
    try {
      return Integer.parseInt(jsonObject.getString("shuttl_port"));
    } catch (JSONException e) {
      throw new RuntimeException(e);
    }
  }

  public static ShuttlPortEndpoint create(Service splunkService) {
    JsonRestEndpointCaller endpointCaller = new JsonRestEndpointCaller(
        InsecureHttpClientFactory.getInsecureHttpClient());
    return new ShuttlPortEndpoint(splunkService, endpointCaller);
  }
}
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