org.wattdepot.client.http.api.performance.GetLatestValueRate.java Source code

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Here is the source code for org.wattdepot.client.http.api.performance.GetLatestValueRate.java

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/**
 * GetLatestValueRate.java This file is part of WattDepot.
 *
 * Copyright (C) 2014  Cam Moore
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.wattdepot.client.http.api.performance;

import java.util.Timer;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
import org.wattdepot.common.exception.BadCredentialException;
import org.wattdepot.common.exception.BadSensorUriException;
import org.wattdepot.common.exception.IdNotFoundException;

/**
 * GetLatestValueRate - Starts up a process that get the latest value from the
 * WattDepot server at the given rate of measurements per second.
 * 
 * @author Cam Moore
 * 
 */
public class GetLatestValueRate {

    /**
     * @param args command line arguments -s <server uri> -u <username> -p
     *        <password> -o <orgId> -mps <measurementsPerSecond> [-d].
     * @throws BadSensorUriException if there is a problem with the WattDepot
     *         sensor definition.
     * @throws IdNotFoundException if there is a problem with the organization id.
     * @throws BadCredentialException if the credentials are not valid.
     */
    public static void main(String[] args)
            throws BadCredentialException, IdNotFoundException, BadSensorUriException {
        Options options = new Options();
        CommandLine cmd = null;
        String serverUri = null;
        String username = null;
        String organizationId = null;
        String password = null;
        Integer getsPerSec = null;
        boolean debug = false;

        options.addOption("h", false, "Usage: GetLatestValueRate -s <server uri> -u <username>"
                + " -p <password> -o <orgId> -gps <getsPerSecond> [-d]");
        options.addOption("s", "server", true, "WattDepot Server URI. (http://server.wattdepot.org)");
        options.addOption("u", "username", true, "Username");
        options.addOption("o", "organizationId", true, "User's Organization id.");
        options.addOption("p", "password", true, "Password");
        options.addOption("gps", "getsPerSecond", true, "Number of gets per second.");
        options.addOption("d", "debug", false, "Displays statistics as the Measurements are stored.");
        CommandLineParser parser = new PosixParser();
        HelpFormatter formatter = new HelpFormatter();
        try {
            cmd = parser.parse(options, args);
        } catch (ParseException e) {
            System.err.println("Command line parsing failed. Reason: " + e.getMessage() + ". Exiting.");
            System.exit(1);
        }
        if (cmd.hasOption("h")) {
            formatter.printHelp("GetLatestValueRate", options);
            System.exit(0);
        }
        if (cmd.hasOption("s")) {
            serverUri = cmd.getOptionValue("s");
        } else {
            serverUri = "http://server.wattdepot.org/";
        }
        if (cmd.hasOption("u")) {
            username = cmd.getOptionValue("u");
        } else {
            username = "user";
        }
        if (cmd.hasOption("p")) {
            password = cmd.getOptionValue("p");
        } else {
            password = "default";
        }
        if (cmd.hasOption("o")) {
            organizationId = cmd.getOptionValue("o");
        } else {
            organizationId = "organization";
        }
        if (cmd.hasOption("gps")) {
            getsPerSec = Integer.parseInt(cmd.getOptionValue("gps"));
        } else {
            getsPerSec = 13;
        }
        debug = cmd.hasOption("d");
        if (debug) {
            System.out.println("Get Latest Value Rate:");
            System.out.println("    WattDepotServer: " + serverUri);
            System.out.println("    Username: " + username);
            System.out.println("    OrganizationId: " + organizationId);
            System.out.println("    Password: " + password);
            System.out.println("    Gets/Sec: " + getsPerSec);
        }

        Timer t = new Timer("monitoring");
        for (int i = 0; i < getsPerSec; i++) {
            t.schedule(new GetLatestValueTask(serverUri, username, organizationId, password, debug), 0, 1000);
        }
    }

}