InstanceQuery.java

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package at.ac.tuwien.dsg.cloud.salsa.client.commandHandlersImp.eliseAPI;

import at.ac.tuwien.dsg.cloud.salsa.client.CommandHandler;
import at.ac.tuwien.dsg.cloud.salsa.client.Main;
import at.ac.tuwien.dsg.cloud.salsa.client.RestHandler;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;
import javax.ws.rs.core.MediaType;
import org.kohsuke.args4j.Argument;

/**
 *
 * @author Duc-Hung LE
 */
public class InstanceQuery implements CommandHandler {

    // instance ID: serviceID/nodeID/instanceID
    @Argument(index = 0, usage = "The full id of the instance to query, should be: serviceID/unitID/isntanceID", metaVar = "instanceID", required = true)
    String instanceID;

    @Override
    public void execute() {
        String path = "/instance/" + instanceID;
        String result = RestHandler.callRest(Main.getEliseAPI(path), RestHandler.HttpVerb.GET, null, null, MediaType.APPLICATION_JSON, true);
        Gson gson = new GsonBuilder().setPrettyPrinting().create();
        JsonParser jp = new JsonParser();
        JsonElement je = jp.parse(result);
        String prettyJsonString = gson.toJson(je);
        System.err.println(prettyJsonString);

    }

    @Override
    public String getCommandDescription() {
        return "Get the information of an instance by ID.";
    }

}