Example usage for java.lang Runtime maxMemory

Introduction

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

Prototype

public native long maxMemory();

Source Link

Document

Returns the maximum amount of memory that the Java virtual machine will attempt to use.

Usage

From source file:edu.stanford.epadd.launcher.Splash.java

public static String getMemoryStats() {
    Runtime r = Runtime.getRuntime();
    System.gc();//from w  w  w  .ja va  2s. c  o  m
    return r.freeMemory() / MB + " MB free, " + (r.totalMemory() / MB - r.freeMemory() / MB) + " MB used, "
            + r.maxMemory() / MB + " MB max, " + r.totalMemory() / MB + " MB total";
}

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From source file:it.damore.tomee.envmonitor.services.EnvMonitorService.java

@GET
@Path("monitor")
@Produces({ MediaType.APPLICATION_JSON })
public EnvironmentConfig getEnvConfig() throws IllegalAccessException, InvocationTargetException {
    logger.info("received a request...");

    int mb = 1024 * 1024;
    //Getting the runtime reference from system
    Runtime runtime = Runtime.getRuntime();

    EnvironmentConfig b = new EnvironmentConfig();
    b.setMaxMemory(runtime.maxMemory() / mb);
    b.setFreeMemory(runtime.freeMemory() / mb);
    b.setTotalMemory(runtime.totalMemory() / mb);
    b.setSystemProperties(System.getProperties());

    RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
    LocalRuntimeMXBean myRuntimeMXBean = new LocalRuntimeMXBean();
    BeanUtils.copyProperties(myRuntimeMXBean, runtimeMXBean);
    b.setRuntimeMXBean(myRuntimeMXBean);

    MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
    LocalMemoryMXBean myMemoryMXBean = new LocalMemoryMXBean();
    myMemoryMXBean.setHeapMemoryUsage(memoryMXBean.getHeapMemoryUsage());
    myMemoryMXBean.setNonHeapMemoryUsage(memoryMXBean.getNonHeapMemoryUsage());
    myMemoryMXBean.setObjectPendingFinalizationCount(memoryMXBean.getObjectPendingFinalizationCount());
    b.setMemoryMXBean(myMemoryMXBean);//  w  w w  .ja v a  2 s  .  c  o  m

    OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
    LocalOperatingSystemMXBean myOperatingSystemMXBean = new LocalOperatingSystemMXBean();
    BeanUtils.copyProperties(myOperatingSystemMXBean, operatingSystemMXBean);
    b.setOperatingSystemMXBean(myOperatingSystemMXBean);

    return b;
}

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From source file:org.gedantic.web.servlet.FileUploadHandler.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    LOG.debug(">doPost");

    // process only if its multipart content
    if (ServletFileUpload.isMultipartContent(request)) {
        try {//from   w w  w  .ja v  a  2s.c om
            List<FileItem> multiparts = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
            long length = 0;
            for (FileItem item : multiparts) {
                if (!item.isFormField()) {
                    if (!item.getName().toLowerCase().endsWith(".ged")
                            && !item.getName().toLowerCase().endsWith(".gedcom")) {
                        LOG.info("Upload file " + item.getName() + " doesn't end in .ged or .gedcom");
                        throw new RuntimeException(
                                "Upload file " + item.getName() + " doesn't end in .ged or .gedcom");
                    }
                    if (item.getSize() > MAX_MB * 1024 * 1024) {
                        LOG.info("Upload file " + item.getName() + " exceeds " + MAX_MB + "MB limit - was "
                                + item.getSize());
                        throw new RuntimeException("Upload file " + item.getName() + " exceeds " + MAX_MB
                                + "MB limit - was " + item.getSize());
                    }
                    String name = new File(item.getName()).getName();
                    String fullPathAndName = UPLOAD_DIRECTORY + File.separator + name;
                    File file = new File(fullPathAndName);
                    item.write(file);
                    length = file.length();
                    LOG.info("Wrote " + fullPathAndName + " (" + length + " bytes)");

                    new ParserAndLoader(request, response, file).parseAndLoadIntoSession();
                }
            }
        } catch (RuntimeException ex) {
            LOG.error("Unable to upload file: " + ex.getMessage());
            response.setStatus(403);
        } catch (Exception ex) {
            LOG.error("Unable to upload file: ", ex);
            response.setStatus(403);
        }
    }

    Runtime rt = Runtime.getRuntime();
    long maxMemory = rt.maxMemory();
    long freeMemory = rt.freeMemory();
    LOG.info("fileUploaded - freeMemory:" + Double.toString(freeMemory / (1024 * 1024)) + " maxMemory:"
            + Double.toString(maxMemory / (1024 * 1024)));

    LOG.debug("<doPost");
}

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From source file:onlinefrontlines.admin.web.ServerInfoAction.java

/**
  * Execute the action/*  w w w  . j a va  2  s .  c  o  m*/
  */
protected WebView execute() throws Exception {
    Runtime r = Runtime.getRuntime();

    // Get stats
    date = new Date().toString();
    committedMemory = r.totalMemory();
    maxMemory = r.maxMemory();
    usedMemory = committedMemory - r.freeMemory();
    cpuCount = Runtime.getRuntime().availableProcessors();
    os = System.getProperty("os.name") + " (" + System.getProperty("sun.os.patch.level") + ") "
            + System.getProperty("os.arch") + " " + System.getProperty("os.version");
    jvm = System.getProperty("java.runtime.name") + " " + System.getProperty("java.runtime.version") + " "
            + System.getProperty("java.vm.name");
    for (String s : DbConnectionPool.getInstance().getDataSources().keySet())
        dataSourceStatus.put(s, getDataSourceStatus(s));
    servletContainer = servletContext.getServerInfo();

    return getSuccessView();
}

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From source file:eu.openanalytics.rsb.component.SystemHealthResource.java

@GET
@Path("/info")
@Produces({ Constants.RSB_XML_CONTENT_TYPE, Constants.RSB_JSON_CONTENT_TYPE })
public NodeInformation getInfo(@Context final ServletContext sc) {
    final NodeInformation info = Util.REST_OBJECT_FACTORY.createNodeInformation();

    info.setName(getConfiguration().getNodeName());
    info.setHealthy(nodeHealthy.get());//from w  ww.j a v  a2s .  c  o m
    info.setRsbVersion(getClass().getPackage().getImplementationVersion());
    info.setServletContainerInfo(sc.getServerInfo());

    final OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
    info.setOsLoadAverage(operatingSystemMXBean.getSystemLoadAverage());

    final Runtime runtime = Runtime.getRuntime();
    info.setJvmMaxMemory(runtime.maxMemory());
    info.setJvmFreeMemory(runtime.freeMemory());

    final RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
    final long uptimeMilliseconds = runtimeMXBean.getUptime();
    info.setUptime(uptimeMilliseconds);
    info.setUptimeText(DurationFormatUtils.formatDurationWords(uptimeMilliseconds, true, true));

    return info;
}

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From source file:org.gedantic.web.servlet.AnalyzerServlet.java

/**
 * Servlet for handling all analysis requests
 * /* ww  w .  j  a v a2 s. co m*/
 * @param req
 *            the http request
 * @param resp
 *            the http response
 * @throws ServletException
 *             if there is a code-related problemDescription
 * @throws IOException
 *             if there is a network or storage-related problemDescription
 */
private void process(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    HttpSession session = req.getSession();
    Gedcom g = (Gedcom) session.getAttribute(Constants.GEDCOM);
    IAnalyzer a = null;

    String analyzerId = req.getParameter("analyzerId");
    if (analyzerId != null) {
        a = AnalyzerList.getInstance().getAnalyzers().get(analyzerId);
        req.setAttribute(Constants.ANALYSIS_ID, a.getId());
        req.setAttribute(Constants.ANALYSIS_NAME, a.getName());
        req.setAttribute(Constants.ANALYSIS_DESCRIPTION, a.getDescription());
    }

    if (g == null) {
        LOG.info("Redirecting from " + req.getRequestURI()
                + " to upload page because there is no gedcom in session");
        req.setAttribute(Constants.ALERT_MESSAGE, "Please upload a GEDCOM to analyze");
        req.setAttribute(Constants.ALERT_MESSAGE_TYPE, "alert alert-warning");
        req.getRequestDispatcher(Constants.URL_UPLOAD_PAGE).forward(req, resp);
        return;
    }

    if (a == null) {
        LOG.info("Redirecting from " + req.getRequestURI()
                + " to upload page because the analysis ID could not be interpreted");
        req.setAttribute(Constants.ALERT_MESSAGE, "Unknown analysis type");
        req.setAttribute(Constants.ALERT_MESSAGE_TYPE, "alert alert-danger");
        req.getRequestDispatcher(Constants.URL_UPLOAD_PAGE).forward(req, resp);
        return;

    }

    Runtime rt = Runtime.getRuntime();
    long maxMemory = rt.maxMemory();
    long freeMemory = rt.freeMemory();
    LOG.info("before analysis " + a.getId() + " - freeMemory:" + Double.toString(freeMemory / (1024 * 1024))
            + " maxMemory:" + Double.toString(maxMemory / (1024 * 1024)));

    List<AnalysisResult> results = a.analyze(g);
    Collections.sort(results, new AnalysisResultComparator());

    maxMemory = rt.maxMemory();
    freeMemory = rt.freeMemory();
    LOG.info("after analysis " + a.getId() + " - freeMemory:" + Double.toString(freeMemory / (1024 * 1024))
            + " maxMemory:" + Double.toString(maxMemory / (1024 * 1024)));

    if ("true".equals(req.getParameter("excel"))) {
        @SuppressWarnings("resource")
        Workbook wb = new WorkbookCreator(a, results).create();

        resp.setContentType("application/vnd.ms-excel");
        resp.setHeader("Content-disposition",
                "attachment; filename=" + StringEscapeUtils.escapeHtml(a.getName() + ".xlsx"));

        wb.write(resp.getOutputStream());
        resp.getOutputStream().flush();

    } else {
        req.setAttribute(Constants.RESULTS, results);
        req.getRequestDispatcher("results.tiles").forward(req, resp);
    }
}

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From source file:hydrograph.ui.joblogger.JobLogger.java

/**
 * //from   w ww  .j  a  va 2  s  .  co  m
 * Logs runtime properties
 * 
 * @param jobLogger
 */
private void logRuntimeInformation(AbstractJobLogger jobLogger) {
    Runtime runtime = Runtime.getRuntime();
    long maxMemory = runtime.maxMemory();
    jobLogger.logWithNoTimeStamp("Max Memory: " + Long.toString(maxMemory / 1024));
    long allocatedMemory = runtime.totalMemory();
    jobLogger.logWithNoTimeStamp("Allocated Memory:  " + Long.toString(allocatedMemory / 1024));
    long freeMemory = runtime.freeMemory();
    jobLogger.logWithNoTimeStamp("Free Memory: " + Long.toString(freeMemory / 1024));
    jobLogger.logWithNoTimeStamp(
            "Total free memory: " + Long.toString((freeMemory + (maxMemory - allocatedMemory)) / 1024));
    long used = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
    jobLogger.logWithNoTimeStamp("Used Memory : " + Long.toString(used));
}

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From source file:alluxio.util.JvmPauseMonitor.java

private String getMemoryInfo() {
    Runtime runtime = Runtime.getRuntime();
    return "max memory = " + runtime.maxMemory() / (1024 * 1024) + "M total memory = "
            + runtime.totalMemory() / (1024 * 1024) + "M free memory = " + runtime.freeMemory() / (1024 * 1024)
            + "M";
}

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From source file:org.mule.transport.tcp.integration.BigInputStream.java

public int read() throws IOException {
    if (sent == size) {
        return -1;
    } else {/*from  w  w  w. j  a  va  2s  .  com*/
        if (++sent > nextMessage) {
            double percent = 100l * sent / ((double) size);
            Runtime runtime = Runtime.getRuntime();
            logger.info(FORMAT.format(new Object[] { new Long(sent), new Double(percent),
                    new Long(runtime.freeMemory()), new Long(runtime.maxMemory()) }));
            nextMessage = ++printedMessages * ((int) Math.floor(((double) size) / (messages - 1)) - 1);
        }
        if (dataIndex == data.length) {
            dataIndex = 0;
        }
        return data[dataIndex++];
    }
}

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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 . ja  v a  2 s  . c  o 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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