Example usage for java.lang Runtime freeMemory

Introduction

In this page you can find the example usage for java.lang Runtime freeMemory.

Prototype

public native long freeMemory();

Source Link

Document

Returns the amount of free memory in the Java Virtual Machine.

Usage

From source file:com.github.lpezet.antiope.metrics.aws.MachineMetricFactory.java

private void addMemoryMetrics(List<MetricDatum> pTargetList, Set<MachineMetric> pCustomSet) {
    Runtime rt = Runtime.getRuntime();
    long oTotalMem = rt.totalMemory();
    long oFreeMem = rt.freeMemory();
    long oUsedMem = oTotalMem - oFreeMem;
    long oSpareMem = rt.maxMemory() - oUsedMem;
    List<Long> oValues = Arrays.asList(oTotalMem, oFreeMem, oUsedMem, oSpareMem);
    MetricValues oMetricValues = memoryMetricValues(pCustomSet, oValues);
    addMetrics(pTargetList, oMetricValues, StandardUnit.Bytes);
}

---

From source file:ffx.HeadlessMain.java

/**
 * Complete initializations./* w  w w.  j  ava 2 s.com*/
 *
 * @param commandLineFile a {@link java.io.File} object.
 * @param argList a {@link java.util.List} object.
 * @param logHandler a {@link ffx.ui.LogHandler} object.
 */
public HeadlessMain(File commandLineFile, List<String> argList, LogHandler logHandler) {
    // Start a timer.
    stopWatch.start();

    // Construct the MainPanel, set it's LogHandler, and initialize then it.
    mainPanel = new MainPanel();
    logHandler.setMainPanel(mainPanel);
    mainPanel.initialize();

    // Open the supplied script file.
    if (commandLineFile != null) {
        if (!commandLineFile.exists()) {
            /**
             * See if the commandLineFile is an embedded script.
             */
            String name = commandLineFile.getName();
            name = name.replace('.', '/');
            String pathName = "ffx/scripts/" + name;
            ClassLoader loader = getClass().getClassLoader();
            URL embeddedScript = loader.getResource(pathName + ".ffx");
            if (embeddedScript == null) {
                embeddedScript = loader.getResource(pathName + ".groovy");
            }
            if (embeddedScript != null) {
                try {
                    commandLineFile = new File(FFXClassLoader.copyInputStreamToTmpFile(
                            embeddedScript.openStream(), commandLineFile.getName(), ".ffx"));
                } catch (Exception e) {
                    logger.warning("Exception extracting embedded script " + embeddedScript.toString() + "\n"
                            + e.toString());
                }
            }
        }
        if (commandLineFile.exists()) {
            mainPanel.getModelingShell().setArgList(argList);
            mainPanel.open(commandLineFile, null);
        } else {
            logger.warning(format("%s was not found.", commandLineFile.toString()));
        }
    }

    /**
     * Print start-up information.
     */
    if (logger.isLoggable(Level.FINE)) {
        StringBuilder sb = new StringBuilder();
        sb.append(format("\n Start-up Time (msec): %s.", stopWatch.getTime()));
        Runtime runtime = Runtime.getRuntime();
        runtime.runFinalization();
        runtime.gc();
        long occupiedMemory = runtime.totalMemory() - runtime.freeMemory();
        long KB = 1024;
        sb.append(format("\n In-Use Memory   (Kb): %d", occupiedMemory / KB));
        sb.append(format("\n Free Memory     (Kb): %d", runtime.freeMemory() / KB));
        sb.append(format("\n Total Memory    (Kb): %d", runtime.totalMemory() / KB));
        logger.fine(sb.toString());
    }
}

---

From source file:org.apache.shindig.social.opensocial.util.JsonConverterPerformancePerf.java

public void testToJsonLibOnInheritedClassInput() throws Exception {
    SpecialPerson[] spa = new SpecialPerson[TEST_SIZE];
    SpecialPerson[] sparesult = new SpecialPerson[TEST_SIZE];
    Runtime r = Runtime.getRuntime();
    r.gc();//w  w  w.ja va2 s .  c  o  m
    long personStart = r.totalMemory() - r.freeMemory();
    for (int i = 0; i < TEST_SIZE; i++) {
        spa[i] = new SpecialPerson(String.valueOf(i), "robot", "nonsense");
    }
    long personEnd = r.totalMemory() - r.freeMemory();

    String[] serializeOutput = new String[TEST_SIZE];
    r.gc();
    for (int i = 0; i < TEST_SIZE; i++) {

        serializeOutput[i] = beanJsonLibConverter.convertToString(spa[i]);
    }

    r.gc();
    long memstart = r.totalMemory() - r.freeMemory();
    long startInput = System.currentTimeMillis();
    for (int i = 0; i < TEST_SIZE; i++) {
        sparesult[i] = beanJsonLibConverter.convertToObject(serializeOutput[i], SpecialPerson.class);
    }
    long endInput = System.currentTimeMillis();
    long memend = r.totalMemory() - r.freeMemory();

    log.info("SF JSON Lib Input " + average(startInput, endInput, TEST_SIZE) + " ms/conversion, "
            + (average(memstart, memend, TEST_SIZE) - average(personStart, personEnd, TEST_SIZE))
            + " heap bytes/conversion, person object consumed on average "
            + average(personStart, personEnd, TEST_SIZE));
}

---

From source file:org.apache.shindig.social.opensocial.util.JsonConverterPerformancePerf.java

public void XtestToJsonOnInheritedClassInput() throws Exception {
    SpecialPerson[] spa = new SpecialPerson[TEST_SIZE];
    SpecialPerson[] sparesult = new SpecialPerson[TEST_SIZE];
    Runtime r = Runtime.getRuntime();
    r.gc();//from w  ww  .  jav a2s .c o  m
    long personStart = r.totalMemory() - r.freeMemory();
    for (int i = 0; i < TEST_SIZE; i++) {
        spa[i] = new SpecialPerson(String.valueOf(i), "robot", "nonsense");
    }
    long personEnd = r.totalMemory() - r.freeMemory();

    String[] serializeOutput = new String[TEST_SIZE];
    r.gc();
    for (int i = 0; i < TEST_SIZE; i++) {

        serializeOutput[i] = beanJsonConverter.convertToString(spa[i]);
    }

    r.gc();
    long memstart = r.totalMemory() - r.freeMemory();
    long startInput = System.currentTimeMillis();

    for (int i = 0; i < TEST_SIZE; i++) {
        sparesult[i] = beanJsonConverter.convertToObject(serializeOutput[i], SpecialPerson.class);
    }
    long endInput = System.currentTimeMillis();
    long memend = r.totalMemory() - r.freeMemory();

    log.info("SF JSON Lib Input " + average(startInput, endInput, TEST_SIZE) + " ms/conversion, "
            + (average(memstart, memend, TEST_SIZE) - average(personStart, personEnd, TEST_SIZE))
            + " heap bytes/conversion, person object consumed on average "
            + average(personStart, personEnd, TEST_SIZE));
}

---

From source file:org.apache.shindig.social.opensocial.util.JsonConverterPerformancePerf.java

public void testToJsonLibOnInheritedClassOutput() throws Exception {
    SpecialPerson[] spa = new SpecialPerson[TEST_SIZE];
    for (int i = 0; i < TEST_SIZE; i++) {
        spa[i] = new SpecialPerson(String.valueOf(i), "robot", "nonsense");
    }//from  w w w. j a  v  a  2 s .  c o  m
    Runtime r = Runtime.getRuntime();
    r.gc();
    long memstart = r.totalMemory() - r.freeMemory();
    long startOutput = System.currentTimeMillis();
    String[] output = new String[TEST_SIZE];
    for (int i = 0; i < TEST_SIZE; i++) {
        output[i] = beanJsonLibConverter.convertToString(spa[i]);
    }
    long endOutput = System.currentTimeMillis();
    long memend = r.totalMemory() - r.freeMemory();

    String[] serializeOutput = new String[TEST_SIZE];
    char[] source = output[0].toCharArray();
    r.gc();

    long stringsizeStart = r.totalMemory() - r.freeMemory();
    for (int i = 0; i < TEST_SIZE; i++) {
        serializeOutput[i] = new String(source);
    }
    long stringsizeEnd = r.totalMemory() - r.freeMemory();

    /*
     * Output the time per conversion and the memory usage - the output per
     * conversion.
     *
     */

    log.info("SF JSON Lib Output " + average(startOutput, endOutput, TEST_SIZE) + " ms/conversion, "
            + (average(memstart, memend, TEST_SIZE) - average(stringsizeStart, stringsizeEnd, TEST_SIZE))
            + " heap bytes/conversion, output packet consumed on average "
            + average(stringsizeStart, stringsizeEnd, TEST_SIZE) + " for a string length of "
            + output[0].length());
    log.info("Output Was [" + output[0] + ']');
}

---

From source file:org.openmrs.module.emrmonitor.metric.JavaRuntimeMetricProducer.java

/**
 * @return a list of produced metrics/*from w  w w  .  j  av a  2  s  . co m*/
 */
@Override
public Map<String, String> produceMetrics() {

    Map<String, String> metrics = new LinkedHashMap<String, String>();

    // Memory
    Runtime runtime = Runtime.getRuntime();
    metrics.put("memory.total", FormatUtil.formatBytes(runtime.totalMemory()));
    metrics.put("memory.total.bytes", Long.toString(runtime.totalMemory()));
    metrics.put("memory.free", FormatUtil.formatBytes(runtime.freeMemory()));
    metrics.put("memory.free.bytes", Long.toString(runtime.freeMemory()));
    metrics.put("memory.maximum", FormatUtil.formatBytes(runtime.maxMemory()));
    metrics.put("memory.maximum.bytes", Long.toString(runtime.maxMemory()));

    // Date/time
    Calendar cal = Calendar.getInstance();
    metrics.put("datetime.display", DateFormat.getDateTimeInstance().format(cal.getTime()));
    metrics.put("datetime.date", DateFormatUtils.ISO_DATE_FORMAT.format(cal));
    metrics.put("datetime.time", DateFormatUtils.ISO_TIME_NO_T_FORMAT.format(cal));
    metrics.put("datetime.timezone", cal.getTimeZone().getDisplayName());

    // Java
    Properties sp = System.getProperties();
    metrics.put("version", sp.getProperty("java.version"));
    metrics.put("vendor", sp.getProperty("java.vendor"));
    metrics.put("jvmVersion", sp.getProperty("java.vm.version"));
    metrics.put("jvmVendor", sp.getProperty("java.vm.vendor"));
    metrics.put("runtimeName", sp.getProperty("java.runtime.name"));
    metrics.put("runtimeVersion", sp.getProperty("java.runtime.version"));
    metrics.put("user.name", sp.getProperty("user.name"));
    metrics.put("user.language", sp.getProperty("user.language"));
    metrics.put("user.timezone", sp.getProperty("user.timezone"));
    metrics.put("user.directory", sp.getProperty("user.dir"));
    metrics.put("encoding", sp.getProperty("sun.jnu.encoding"));
    metrics.put("tempDirectory", sp.getProperty("java.io.tmpdir"));

    return metrics;
}

---

From source file:com.aurel.track.prop.LoginBL.java

/**
 *
 * @param username/*from w  w w.j av  a 2 s  .  com*/
 * @param userPwd
 * @param nonce
 * @param request
 * @param anonymousLogin
 * @return Map with two entries: 1. "errors": ArrayList<LabelValueBean>; 2.
 *         "mappingEnum": Integer with 2: bad credentials, 6: license
 *         problems, 7: forward to URL, 8: first time admin user, 18:
 *         request license, 9: standard login
 *
 */
public static Map<String, Object> setEnvironment(String username, String userPwd, String nonce,
        HttpServletRequest request, Map<String, Object> sessionMap, boolean anonymousLogin,
        boolean usingContainerBasedAuthentication, boolean springAuthenticated) {
    HttpSession httpSession = request.getSession();
    ArrayList<LabelValueBean> errors = new ArrayList<LabelValueBean>();
    HashMap<String, Object> result = new HashMap<String, Object>();
    Integer mappingEnum = 0;

    // Make things robust
    if (username == null) {
        username = "x";
    }
    if (userPwd == null) {
        userPwd = "x";
    }
    // Move locale to one that we actually have, in case there
    // was a request for a locale that we do not have
    Locale locale = LocaleHandler.getExistingLocale(request.getLocales());
    LocaleHandler.exportLocaleToSession(sessionMap, locale);
    Support support = new Support();
    support.setURIs(request);
    if (username != null) {
        ACCESSLOGGER.info("LOGON: User '" + username.trim() + "' trying to log on" + " at "
                + new Date().toString() + " from " + request.getRemoteAddr());
    }
    ServletContext servletContext = org.apache.struts2.ServletActionContext.getServletContext();
    try {
        if (!Torque.isInit()) {
            Torque.init(HandleHome.getTorqueProperties(servletContext, true));
            LOGGER.debug("Database is " + Torque.getDefaultDB());
            LOGGER.info("Torque was re-initialized.");
        }
    } catch (Exception e) {
        LOGGER.error(e.getMessage());
        LOGGER.error("Could not initialize Torque (1)");
        LOGGER.error(ExceptionUtils.getStackTrace(e));
        errors.add(new LabelValueBean("errGeneralError",
                getText("logon.err.noDataBase", locale) + ":" + e.getMessage()));
        mappingEnum = 1;
        result.put("errors", errors);
        result.put("mappingEnum", mappingEnum);
        return result;
    }
    TPersonBean personBean = null;
    if (anonymousLogin) {
        personBean = PersonBL.getAnonymousIfActive();
    } else {
        try {
            String pwd = "";
            if (nonce == null || nonce.length() == 0) {
                pwd = userPwd; // clear text
            } else {
                pwd = decrypt(nonce.charAt(0), userPwd); // key is first
                // character of
                // nonce
            }
            personBean = PersonBL.loadByLoginNameWithRights(username);

            if (personBean != null) {
                personBean.setPlainPwd(pwd);

                if (personBean.isDisabled()) {
                    errors.add(
                            new LabelValueBean("errCredentials", getText("logon.err.user.disabled", locale)));
                    ACCESSLOGGER
                            .warn("LOGON: User " + personBean.getLoginName() + " is disabled, login refused!");
                } else if (usingContainerBasedAuthentication == false && springAuthenticated == false
                        && !personBean.authenticate(pwd)) {
                    ACCESSLOGGER.warn("LOGON: Wrong password given for user " + personBean.getFullName()
                            + " at " + new Date().toString() + " from " + request.getRemoteAddr());
                    errors.add(new LabelValueBean("errCredentials",
                            getText("logon.err.password.mismatch", locale)));
                }
            } else {
                ACCESSLOGGER.warn("LOGON: No such user: " + username + " at " + new Date().toString() + " from "
                        + request.getRemoteAddr());
                errors.add(
                        new LabelValueBean("errCredentials", getText("logon.err.password.mismatch", locale)));
                LOGGER.debug("User '" + username + "' is not in database...");
            }
        } catch (Exception e) {
            LOGGER.error(e.getMessage());
            LOGGER.error("Could not initialize Torque (2)");
            LOGGER.error(ExceptionUtils.getStackTrace(e));
            errors.add(new LabelValueBean("errGeneralError", getText("logon.err.noDataBase", locale)));
        }
    }

    if (errors.size() > 0 || personBean == null) {
        mappingEnum = 2;
        result.put("errors", errors);
        result.put("mappingEnum", mappingEnum);
        return result;
    }

    // At this point, we have successfully identified the user.
    // Try to set the users preferred locale
    if (personBean.getPrefLocale() != null && !"".equals(personBean.getPrefLocale())) {
        // get as stored in user profile
        locale = LocaleHandler.getExistingLocale(LocaleHandler.getLocaleFromString(personBean.getPrefLocale()));
    }
    if (locale == null) {
        // rely on browser settings
        locale = LocaleHandler.getExistingLocale(request.getLocales());
    }
    personBean.setLocale(locale);

    // set the bean with the last saved login date and save the actual date
    // as
    // last login date in the database
    personBean.setLastButOneLogin(personBean.getLastLogin());
    personBean.setLastLogin(new Date());
    PersonBL.saveSimple(personBean);
    LocaleHandler.exportLocaleToSession(sessionMap, locale);

    // -----------------------------------------------------

    // check if opState
    // (reject users, but not admin, in maintenance state)
    ApplicationBean appBean = ApplicationBean.getInstance();

    if (appBean == null) {
        LOGGER.error("appBean == null: this should never happen");
        mappingEnum = 3;
        result.put("errors", errors);
        result.put("mappingEnum", mappingEnum);
        return result;
    }

    httpSession.setAttribute(Constants.APPLICATION_BEAN, appBean);

    TSiteBean siteBean = DAOFactory.getFactory().getSiteDAO().load1();

    if (ApplicationBean.OPSTATE_MAINTENNANCE.equals(siteBean.getOpState()) && !personBean.getIsSysAdmin()) {
        // print error, refuse login
        errors.add(new LabelValueBean("errGeneralError", getText("logon.err.maintenance", locale)));
        mappingEnum = 4;
        result.put("errors", errors);
        result.put("mappingEnum", mappingEnum);
        return result;
    }

    Runtime rt = Runtime.getRuntime();
    long mbyte = 1024 * 1024;
    long freeMemoryMB = rt.freeMemory() / mbyte;
    if (freeMemoryMB < 50 && !personBean.getIsSysAdmin()) {
        rt.gc();
        freeMemoryMB = rt.freeMemory() / mbyte;
        if (freeMemoryMB < 50) {
            errors.add(new LabelValueBean("errGeneralError", getText("logon.err.freeMemory", locale)));
            mappingEnum = 19;
            result.put("errors", errors);
            result.put("mappingEnum", mappingEnum);
            return result;
        }
    }

    // Save our logged-in user in the session
    // and set a cookie so she can conveniently point
    // directly to issues without having to log on for
    // the next CookieTimeout seconds

    httpSession.setAttribute(Constants.USER_KEY, personBean);

    int maxItemsProUser = GeneralSettings.getMaxItems();
    FilterUpperTO filterUpperTO = new FilterUpperTO();
    TreeFilterExecuterFacade.prepareFilterUpperTO(filterUpperTO, personBean, locale, null, null);
    int noOfProjectRoleItemsProUser = LoadTreeFilterItemCounts.countTreeFilterProjectRoleItems(filterUpperTO,
            personBean, locale, maxItemsProUser);
    int noOfRACIRoleItemsProUser = LoadTreeFilterItemCounts.countTreeFilterRACIRoleItems(filterUpperTO,
            personBean, locale, maxItemsProUser);
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("Maximum number of items per user " + maxItemsProUser);
        LOGGER.debug(
                "Number of project role items accessible by " + username + ": " + noOfProjectRoleItemsProUser);
        LOGGER.debug("Number of RACI role items accessible by " + username + ": " + noOfRACIRoleItemsProUser);
    }
    boolean projectRoleItemsAboveLimit = noOfProjectRoleItemsProUser >= maxItemsProUser;
    boolean raciRoleItemsAboveLimit = noOfRACIRoleItemsProUser >= maxItemsProUser;
    personBean.setProjectRoleItemsAboveLimit(Boolean.valueOf(projectRoleItemsAboveLimit));
    personBean.setRaciRoleItemsAboveLimit(Boolean.valueOf(raciRoleItemsAboveLimit));
    PersonBL.setLicensedFeatures(personBean);

    List<TListTypeBean> issueTypes = IssueTypeBL.loadAllByPerson(personBean.getObjectID(), locale);
    httpSession.setAttribute("issueTypesJSON", JSONUtility.encodeIssueTypes(issueTypes));
    Integer sessionTimeoutMinutes = personBean.getSessionTimeoutMinutes();
    if (sessionTimeoutMinutes != null && sessionTimeoutMinutes.intValue() != 0) {
        httpSession.setMaxInactiveInterval(sessionTimeoutMinutes * 60);
    }
    // load the my filters in the menu
    List<FilterInMenuTO> myFilters = FilterBL.loadMyMenuFiltersWithTooltip(personBean, locale);

    httpSession.setAttribute(FilterBL.MY_MENU_FILTERS_JSON, FilterInMenuJSON.encodeFiltersInMenu(myFilters));

    List<FilterInMenuTO> lastQueries = FilterInMenuBL.getLastExecutedQueries(personBean, locale);

    httpSession.setAttribute(FilterBL.LAST_EXECUTED_FILTERS_JSON,
            FilterInMenuJSON.encodeFiltersInMenu(lastQueries));
    httpSession.setAttribute(ShortcutBL.SHORTCUTS_JSON, ShortcutBL.encodeShortcutsJSON());

    // modules
    List modules = getModuleDescriptors(personBean);
    httpSession.setAttribute("usedModules", modules);
    httpSession.setAttribute("usedModulesJSON", MasterHomeJSON.encodeModules(modules, personBean));
    httpSession.setAttribute("loggedInPersonUserLevel", personBean.getUserLevel());
    httpSession.setAttribute("clientUserLevelID", TPersonBean.USERLEVEL.CLIENT);

    // maxFileSize
    int maxFileSize = AttachBL.getMaxFileSize(siteBean);
    httpSession.setAttribute("MAXFILESIZE", maxFileSize);

    // ------------------------------------------------------
    // Create a new SessionBean for this session and bind it to the session

    SessionBean sBean = new SessionBean();
    httpSession.setAttribute(Constants.SESSION_BEAN, sBean);

    ItemLockBL.removeLockedIssuesByUser(personBean.getObjectID());

    ACCESSLOGGER.info("LOGON: User '" + personBean.getLoginName().trim() + "' (" + personBean.getFullName()
            + ")" + " logged in at " + new Date().toString() + " from " + request.getRemoteAddr());

    LicenseManager lm = appBean.getLicenseManager();
    if (lm != null) {
        int rf = lm.getErrorCode();
        boolean haveLicenseErrors = false;
        switch (rf) {
        case 1:
            haveLicenseErrors = true;
            errors.add(
                    new LabelValueBean("errLicenseError", getText("logon.err.license.needCommercial", locale)));
            break;
        case 2:
            haveLicenseErrors = true;
            errors.add(new LabelValueBean("errLicenseError", getText("logon.err.license.expired", locale)));
            break;
        case 3:
            haveLicenseErrors = true;
            errors.add(
                    new LabelValueBean("errLicenseError", getText("logon.err.license.full.exceeded", locale)));
            break;
        case 4:
            haveLicenseErrors = true;
            errors.add(new LabelValueBean("errLicenseError", getText("logon.err.license.invalid",
                    new String[] { ApplicationBean.getIpNumbersString() }, locale)));
            break;
        case 7:
            haveLicenseErrors = true;
            errors.add(new LabelValueBean("errLicenseError",
                    getText("logon.err.license.limited.exceeded", locale)));
            break;
        case 8:
            haveLicenseErrors = true;
            errors.add(
                    new LabelValueBean("errLicenseError", getText("logon.err.license.gantt.exceeded", locale)));
            break;
        default:
            break;
        }

        if (haveLicenseErrors == true) {
            mappingEnum = 6;
            result.put("errors", errors);
            result.put("mappingEnum", mappingEnum);
            return result;
        }
    }

    result.put("errors", errors);

    httpSession.setAttribute("DESIGNPATH", personBean.getDesignPath());

    Boolean isMobileDevice = LogoffBL.isThisAMobileDevice(request);
    httpSession.setAttribute("mobile", isMobileDevice);

    LOGGER.debug("Mobile is " + httpSession.getAttribute("mobile"));

    // check for post-login forward
    String forwardUrl = (String) httpSession.getAttribute(Constants.POSTLOGINFORWARD);
    if (forwardUrl != null) {
        LOGGER.debug("Forward URL found :" + forwardUrl);
        mappingEnum = 7;
        result.put("mappingEnum", mappingEnum);
        return result;

    }

    Map ret = new GroovyScriptExecuter().handleEvent(IEventSubscriber.EVENT_POST_USER_LOGGED_IN, new HashMap());
    if (ret.get(BINDING_PARAMS.CONTINUE).equals(Boolean.FALSE)) {
        mappingEnum = 10;
        result.put("mappingEnum", mappingEnum);
        return result;
    }

    String extendedKey = ApplicationBean.getInstance().getExtendedKey();

    if (extendedKey == null || extendedKey.length() < 10) { // no empty keys
        // allowed
        mappingEnum = 18;
        result.put("mappingEnum", mappingEnum);
        return result;

    }

    String firstTime = (String) servletContext.getAttribute("FirstTime");

    result.put("user", personBean);

    if (personBean.getIsSysAdmin() && firstTime != null && firstTime.equals("FT")) {

        servletContext.removeAttribute("FirstTime");
        mappingEnum = 8;
        result.put("mappingEnum", mappingEnum);
        return result;

    } else {
        // Forward control to the specified success URI
        mappingEnum = 9;
        result.put("mappingEnum", mappingEnum);
        return result;
    }
}

---

From source file:org.ambraproject.action.debug.DebugInfoAction.java

@Override
public String execute() throws Exception {
    if (!checkAccess()) {
        return ERROR;
    }//ww w .ja  va 2 s . c o m
    timestamp = new Date(System.currentTimeMillis());
    Runtime rt = Runtime.getRuntime();
    jvmFreeMemory = (double) rt.freeMemory() / (1024.0 * 1024.0);
    jvmTotalMemory = (double) rt.totalMemory() / (1024.0 * 1024.0);
    jvmMaxMemory = (double) rt.maxMemory() / (1024.0 * 1024.0);
    HttpServletRequest req = ServletActionContext.getRequest();
    tomcatVersion = ServletActionContext.getServletContext().getServerInfo();
    sessionCount = SessionCounter.getSessionCount();
    host = req.getLocalName();
    hostIp = req.getLocalAddr();
    buildInfo = generateBuildInfo();

    // The easiest way I found to get the URL and username for the DB.
    // It's not that easy and involves opening a connection...
    Context initialContext = new InitialContext();
    Context context = (Context) initialContext.lookup("java:comp/env");
    DataSource ds = (DataSource) context.lookup("jdbc/AmbraDS");
    Connection conn = null;
    try {
        conn = ds.getConnection();
        DatabaseMetaData metadata = conn.getMetaData();
        dbUrl = metadata.getURL();
        dbUser = metadata.getUserName();
    } finally {
        conn.close();
    }

    Configuration config = ConfigurationStore.getInstance().getConfiguration();
    FileStoreService filestoreService = (FileStoreService) context.lookup("ambra/FileStore");
    filestore = filestoreService.toString();
    solrUrl = (String) config.getProperty("ambra.services.search.server.url");
    configuration = dumpConfig(config);
    cmdLine = IOUtils.toString(new FileInputStream("/proc/self/cmdline"));

    return SUCCESS;
}

---

From source file:com.betfair.tornjak.monitor.FreeMemoryMonitor.java

/**
 * Answers the amount of free memory in this runtime environment, as a percentage.
 */// ww  w. j a  v  a  2  s .  co m
@Override
@ManagedAttribute()
public int getFreeMemoryPercentage() {
    Runtime runtime = Runtime.getRuntime();
    // 'totalMemory' is how much heap we have *currently*
    // - this may increase up to 'maxMemory' (and can decrease)
    long totalMemory = runtime.totalMemory();
    // 'freeMemory' is 'totalMemory' - allocated)
    long freeMemory = runtime.freeMemory();
    // Work out how much we have used
    long allocatedMemory = totalMemory - freeMemory;
    // 'maxMemory' is equivalent to the JVM option '-Xmx'
    long maxMemory = runtime.maxMemory();
    // Work out the percentage used
    return (int) (100 - (allocatedMemory * 100 / maxMemory));
}

---

From source file:org.loklak.api.susi.StatusService.java

@Override
public JSONObject serviceImpl(Query post, HttpServletResponse response, Authorization rights,
        JSONObjectWithDefault permissions) throws APIException {

    post.setResponse(response, "application/javascript");

    // generate json
    Runtime runtime = Runtime.getRuntime();
    JSONObject json = new JSONObject(true);
    JSONObject system = new JSONObject(true);
    system.put("assigned_memory", runtime.maxMemory());
    system.put("used_memory", runtime.totalMemory() - runtime.freeMemory());
    system.put("available_memory", runtime.maxMemory() - runtime.totalMemory() + runtime.freeMemory());
    system.put("cores", runtime.availableProcessors());
    system.put("threads", Thread.activeCount());
    system.put("runtime", System.currentTimeMillis() - Caretaker.startupTime);
    system.put("load_system_average", OS.getSystemLoadAverage());
    system.put("load_system_cpu", OS.getSystemCpuLoad());
    system.put("load_process_cpu", OS.getProcessCpuLoad());
    system.put("server_threads", SusiServer.getServerThreads());
    system.put("server_uri", SusiServer.getServerURI());

    JSONObject index = new JSONObject(true);
    JSONObject messages = new JSONObject(true);
    JSONObject queue = new JSONObject(true);
    messages.put("queue", queue);
    JSONObject users = new JSONObject(true);
    JSONObject queries = new JSONObject(true);
    JSONObject accounts = new JSONObject(true);
    JSONObject user = new JSONObject(true);
    index.put("messages", messages);
    index.put("users", users);
    index.put("queries", queries);
    index.put("accounts", accounts);
    index.put("user", user);

    JSONObject client_info = new JSONObject(true);
    client_info.put("RemoteHost", post.getClientHost());
    client_info.put("IsLocalhost", post.isLocalhostAccess() ? "true" : "false");

    JSONObject request_header = new JSONObject(true);
    Enumeration<String> he = post.getRequest().getHeaderNames();
    while (he.hasMoreElements()) {
        String h = he.nextElement();
        request_header.put(h, post.getRequest().getHeader(h));
    }//from   w ww .  j  a v  a2s .co  m
    client_info.put("request_header", request_header);

    json.put("system", system);
    json.put("index", index);
    json.put("client_info", client_info);

    return json;
}

---

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