monitor.api.Requests.java Source code

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Here is the source code for monitor.api.Requests.java

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/*
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package monitor.api;

import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.JsonNode;
import com.mashape.unirest.http.Unirest;
import com.mashape.unirest.http.exceptions.UnirestException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * Class that send HTTP requisitions to OpenStack.
 * @author gprt
 */
public class Requests {

    /**
     * Send HTTP requistion to get token to access OpenStack.
     * @param jsonCredentials security informations (user and password) of OpenStack.
     * @return response of HTTP requisition (JSON)
     */
    public HttpResponse<JsonNode> requestToken(String jsonCredentials) {
        URL url = new URL();
        try {
            return Unirest.post(url.getIdentityTokens()).header("Content-Type", "application/json")
                    .body(jsonCredentials).asJson();
        } catch (UnirestException ex) {
            Logger.getLogger(Requests.class.getName()).log(Level.SEVERE, null, ex);
            return null;
        }
    }

    /**
     * Method that interacting with Openstack.
     * @param jsonToken security token returned by OpenStack.
     * @param id ID of instance.
     * @param op that will be realized by OpenStack (e.g. pause).
     * @return response of HTTP requisition (JSON).
     */
    public HttpResponse<JsonNode> requestOP(String jsonToken, String id, String op) {// op = pause or unpause
        URL url = new URL();
        JSONObject action = new JSONObject();
        try {
            action.append(op, null);
        } catch (JSONException ex) {
            Logger.getLogger(Requests.class.getName()).log(Level.SEVERE, null, ex);
        }
        try {
            return Unirest.post(url.basicURL() + "servers/" + id + "/action").header("X-Auth-Token", jsonToken)
                    .header("Content-Type", "application/json").body(action).asJson();
        } catch (UnirestException ex) {

            Logger.getLogger(Requests.class.getName()).log(Level.SEVERE, null, ex);
            return null;

        }

    }

    /**
     * Method that get informations about instances running in cloud eviromnent.
     * @param jsonToken security token returned by OpenStack.
     * @return response of HTTP requisition (JSON).
     */
    public HttpResponse<JsonNode> requestServers(String jsonToken) {
        URL url = new URL();
        HttpResponse<JsonNode> response = null;
        try {
            response = Unirest.get(url.getServers()).header("X-Auth-Token", jsonToken).asJson();

        } catch (UnirestException ex) {
            Logger.getLogger(Requests.class.getName()).log(Level.SEVERE, null, ex);

        }
        return response;
    }

    /**
     * Method that get information about specific instance running in cloud eviromnent.
     * @param jsonToken security token returned by OpenStack.
     * @param id ID instance 
     * @return response of HTTP requisition (JSON).
     */
    public HttpResponse<JsonNode> requestServer(String jsonToken, String id) {
        URL url = new URL();
        HttpResponse<JsonNode> response = null;
        try {
            response = Unirest.get(url.getServers(id)).header("X-Auth-Token", jsonToken).asJson();

        } catch (UnirestException ex) {
            Logger.getLogger(Requests.class.getName()).log(Level.SEVERE, null, ex);

        }
        return response;
    }
}