static

in src/main/java/org/opensearch/performanceanalyzer/jvm/HeapMetrics.java [42:75]

• 33 lines of code
• 20 McCabe index (conditional complexity)

    static {
        memoryUsageSuppliers = new HashMap<>();
        MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
        if (memoryMXBean != null) {
            memoryUsageSuppliers.put("Heap", () -> memoryMXBean.getHeapMemoryUsage());
            memoryUsageSuppliers.put("NonHeap", () -> memoryMXBean.getNonHeapMemoryUsage());
        }

        List<MemoryPoolMXBean> list = ManagementFactory.getMemoryPoolMXBeans();
        for (MemoryPoolMXBean item : list) {
            if ("CMS Perm Gen".equals(item.getName())
                    || "Perm Gen".equals(item.getName())
                    || "PS Perm Gen".equals(item.getName())
                    || "G1 Perm Gen".equals(item.getName())
                    || "Metaspace".equals(item.getName())) {
                memoryUsageSuppliers.put("PermGen", () -> item.getUsage());
            } else if ("CMS Old Gen".equals(item.getName())
                    || "Tenured Gen".equals(item.getName())
                    || "PS Old Gen".equals(item.getName())
                    || "G1 Old Gen".equals(item.getName())) {
                memoryUsageSuppliers.put("OldGen", () -> item.getUsage());
            } else if ("Par Eden Space".equals(item.getName())
                    || "Eden Space".equals(item.getName())
                    || "PS Eden Space".equals(item.getName())
                    || "G1 Eden".equals(item.getName())) {
                memoryUsageSuppliers.put("Eden", () -> item.getUsage());
            } else if ("Par Survivor Space".equals(item.getName())
                    || "Survivor Space".equals(item.getName())
                    || "PS Survivor Space".equals(item.getName())
                    || "G1 Survivor".equals(item.getName())) {
                memoryUsageSuppliers.put("Survivor", () -> item.getUsage());
            }
        }
    }