Examples with MemoryMXBean java.lang.management.MemoryMXBean used on opensource projects

Example 71 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project spring-framework by spring-projects.

the class MBeanClientInterceptorTests method mxBeanAttributeAccess.

@Test
void mxBeanAttributeAccess() throws Exception {
    MBeanClientInterceptor interceptor = new MBeanClientInterceptor();
    interceptor.setServer(ManagementFactory.getPlatformMBeanServer());
    interceptor.setObjectName("java.lang:type=Memory");
    interceptor.setManagementInterface(MemoryMXBean.class);
    MemoryMXBean proxy = ProxyFactory.getProxy(MemoryMXBean.class, interceptor);
    assertThat(proxy.getHeapMemoryUsage().getMax()).isGreaterThan(0);
}

Example 72 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project neo4j by neo4j.

the class JmxDump method heapDump.

public DiagnosticsReportSource heapDump() {
    return new DiagnosticsReportSource() {

        @Override
        public String destinationPath() {
            return "heapdump.hprof";
        }

        @Override
        public InputStream newInputStream() throws IOException {
            final Path heapdumpFile = createTempFile("neo4j-heapdump", ".hprof").toAbsolutePath();
            heapDump(heapdumpFile.toString());
            return new FileInputStream(heapdumpFile.toFile()) {

                @Override
                public void close() throws IOException {
                    super.close();
                    deleteIfExists(heapdumpFile);
                }
            };
        }

        @Override
        public long estimatedSize() {
            try {
                final MemoryMXBean bean = ManagementFactory.getPlatformMXBean(mBeanServer, MemoryMXBean.class);
                final long totalMemory = bean.getHeapMemoryUsage().getCommitted() + bean.getNonHeapMemoryUsage().getCommitted();
                // We first write raw to disk then write to archive, 5x compression is a reasonable worst case estimation
                return (long) (totalMemory * 1.2);
            } catch (IOException e) {
                throw new UncheckedIOException(e);
            }
        }
    };
}

Example 73 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project databus by linkedin.

the class JavaStatsRequestProcessor method processAllMemoryStats.

private void processAllMemoryStats(DatabusRequest request) throws IOException {
    MemoryMXBean memStats = ManagementFactory.getMemoryMXBean();
    writeJsonObjectToResponse(memStats, request);
}

Example 74 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project Axe by DongyuCai.

the class AxeRest method status.

@Request(path = "/status", method = RequestMethod.GET, desc = "获取系统状态")
public Map<String, Object> status() {
    Map<String, Object> result = new HashMap<>();
    // 启动时间
    Date startupTime = FrameworkStatusHelper.getStartupTime();
    result.put("startTime", new SimpleDateFormat("MM-dd HH:mm:ss").format(startupTime));
    // 已经运行时长
    long runTimeSec = (System.currentTimeMillis() - startupTime.getTime()) / 1000;
    String runTime = "";
    if (runTimeSec < 60) {
        runTime = runTimeSec + "秒";
    } else {
        long runTimeMin = runTimeSec / 60;
        if (runTimeMin < 60) {
            runTimeSec = runTimeSec - (runTimeMin * 60);
            runTime = runTimeMin + "分" + runTimeSec + "秒";
        } else {
            long runTimeHour = runTimeMin / 60;
            if (runTimeHour < 24) {
                runTimeMin = runTimeMin - runTimeHour * 60;
                runTimeSec = runTimeSec - ((runTimeHour * 60) + runTimeMin) * 60;
                runTime = runTimeHour + "时" + runTimeMin + "分" + runTimeSec + "秒";
            } else {
                long runTimeDay = runTimeHour / 24;
                runTimeHour = runTimeHour - (runTimeDay * 24);
                runTimeMin = runTimeMin - ((runTimeDay * 24) + runTimeHour) * 60;
                runTimeSec = runTimeSec - ((((runTimeDay * 24) + runTimeHour) * 60) + runTimeMin) * 60;
                runTime = runTimeDay + "天" + runTimeHour + "时" + runTimeMin + "分" + runTimeSec + "秒";
            }
        }
    }
    result.put("runTime", runTime);
    // 系统负载
    MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
    // 椎内存使用情况
    MemoryUsage memoryUsage = memoryMXBean.getHeapMemoryUsage();
    int M = 1024 * 1024;
    // 已使用的内存
    result.put("usedMemory", memoryUsage.getUsed() / M);
    // 最大可用内存
    result.put("maxMemory", memoryUsage.getMax() / M);
    // Filter数量
    result.put("filterSize", FilterHelper.getSortedFilterList().size());
    // Interceptor数量
    result.put("interceptorSize", InterceptorHelper.getInterceptorMap().size());
    // Controller数量
    int controllerSize = ClassHelper.getControllerClassSet().size();
    result.put("controllerSize", controllerSize);
    // Service数量
    Set<Class<?>> serviceClassSet = ClassHelper.getServiceClassSet();
    int serviceSize = serviceClassSet.size();
    result.put("serviceSize", serviceSize);
    // Component数量
    int componentSize = ClassHelper.getComponentClassSet().size();
    result.put("componentSize", componentSize);
    // Tns数量
    int tnsSize = 0;
    for (Class<?> serviceClass : serviceClassSet) {
        List<Method> methods = ReflectionUtil.getMethodByAnnotation(serviceClass, Tns.class);
        if (CollectionUtil.isNotEmpty(methods)) {
            tnsSize = tnsSize + methods.size();
        }
    }
    result.put("tnsSize", tnsSize);
    // Dao数量
    int daoSize = ClassHelper.getClassSetByAnnotation(Dao.class).size();
    result.put("daoSize", daoSize);
    // Action数量
    result.put("actionSize", ControllerHelper.getActionList().size());
    // Table数量
    result.put("tableSize", TableHelper.getEntityTableSchemaCachedMap().size());
    // DataSource数量
    result.put("dataSourceSize", DataSourceHelper.getDataSourceAll().size());
    return result;
}

Example 75 with MemoryMXBean

use of java.lang.management.MemoryMXBean in project openolat by klemens.

the class MemoryRenderer method render.

@Override
public void render(Renderer renderer, StringOutput sb, Component source, URLBuilder ubu, Translator translator, RenderResult renderResult, String[] args) {
    MemoryComponent cmp = (MemoryComponent) source;
    MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean();
    sb.append("<div class='progress' ");
    if (!cmp.isDomReplacementWrapperRequired()) {
        sb.append(" id='o_c").append(cmp.getDispatchID()).append("'");
    }
    if (cmp.getMemoryType() == MemoryType.HEAP) {
        renderDetails(sb, memoryBean.getHeapMemoryUsage().getMax(), MemoryType.HEAP);
    } else if (cmp.getMemoryType() == MemoryType.NON_HEAP) {
        renderDetails(sb, memoryBean.getNonHeapMemoryUsage().getMax(), MemoryType.NON_HEAP);
    }
    sb.append("</div>");
}