SystemInformationUtils for Java

SystemInformationUtils.java

/**
 * @author <a href="[email protected]">vegard.aasen/t769765</a>
 */
public final class SystemInformationUtils {

    private SystemInformationUtils() {
    }

    public synchronized static SystemInformation getCurrentSystemInformation() {
        final SystemInformation systemInformation = new SystemInformation();
        final OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getPlatformMXBean(OperatingSystemMXBean.class);
        if (operatingSystemMXBean != null) {
            systemInformation.setOs(new OS.Builder()
                    .name(operatingSystemMXBean.getName())
                    .architecture(operatingSystemMXBean.getArch())
                    .numProcessors(operatingSystemMXBean.getAvailableProcessors())
                    .processorLoad(Double.parseDouble(new DecimalFormat("#0.00").format((operatingSystemMXBean.getSystemCpuLoad() * 100d))))
                    .description(operatingSystemMXBean.getVersion())
                    .build());
        }
        final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
        if (memoryMXBean != null) {
            systemInformation.setMemory(new Memory.Builder()
                    .heapMemory(memoryMXBean.getHeapMemoryUsage())
                    .nonHeapMemory(memoryMXBean.getNonHeapMemoryUsage())
                    .build());
        }
        systemInformation.setStartTime(ManagementFactory.getRuntimeMXBean().getStartTime());
        systemInformation.setUpTime(ManagementFactory.getRuntimeMXBean().getUptime());
        return systemInformation;
    }

}

// ############################################ Models

/**
 * @author <a href="[email protected]">vegard.aasen/t769765</a>
 */
public final class SystemInformation implements Serializable {

    private long upTime;
    private long startTime;
    private OS os;
    private Memory memory;

    public OS getOs() {
        return os;
    }

    public void setOs(OS os) {
        this.os = os;
    }

    public Memory getMemory() {
        return memory;
    }

    public void setMemory(Memory memory) {
        this.memory = memory;
    }

    public long getUpTime(TimeUnit timeUnit) {
        return timeUnit.convert(upTime, timeUnit);
    }

    public long getUpTime() {
        return upTime;
    }

    public void setUpTime(long upTime) {
        this.upTime = upTime;
    }

    public long getStartTime(TimeUnit timeUnit) {
        return timeUnit.convert(startTime, timeUnit);
    }

    public long getStartTime() {
        return startTime;
    }

    public void setStartTime(long startTime) {
        this.startTime = startTime;
    }
}

/**
 * @author <a href="[email protected]">vegard.aasen/t769765</a>
 */
public final class OS implements Serializable {

    private String name;
    private String description;
    private String architecture;
    private int numProcessors;
    // in %
    private double processorLoad;

    private OS(final Builder builder) {
        this.name = builder.name;
        this.description = builder.description;
        this.architecture = builder.architecture;
        this.numProcessors = builder.numProcessors;
        this.processorLoad = builder.processorLoad;
    }

    public String getName() {
        return name;
    }

    public String getDescription() {
        return description;
    }

    public String getArchitecture() {
        return architecture;
    }

    public int getNumProcessors() {
        return numProcessors;
    }

    public double getProcessorLoad() {
        return processorLoad;
    }

    public double getSplitProcessorLoad() {
        return processorLoad / numProcessors;
    }

    public static final class Builder {
        private String name;
        private String description;
        private String architecture;
        private int numProcessors;
        private double processorLoad;

        public Builder name(final String s) {
            name = s;
            return this;
        }

        public Builder description(final String s) {
            description = s;
            return this;
        }

        public Builder architecture(final String s) {
            architecture = s;
            return this;
        }

        public Builder numProcessors(final int s) {
            numProcessors = s;
            return this;
        }

        public Builder processorLoad(final double s) {
            processorLoad = s;
            return this;
        }

        public OS build() {
            return new OS(this);
        }

    }

}

/**
 * @author <a href="[email protected]">vegard.aasen/t769765</a>
 */
public final class Memory implements Serializable {

    private MemoryUsage heapMemory;
    private MemoryUsage nonHeapMemory;

    private Memory(Builder builder) {
        this.nonHeapMemory = builder.nonHeapMemory;
        this.heapMemory = builder.heapMemory;
    }

    public MemoryUsage getHeapMemory() {
        return heapMemory;
    }

    public MemoryUsage getNonHeapMemory() {
        return nonHeapMemory;
    }

    public static final class Builder {

        private MemoryUsage heapMemory;
        private MemoryUsage nonHeapMemory;

        public Builder heapMemory(MemoryUsage m) {
            heapMemory = m;
            return this;
        }

        public Builder nonHeapMemory(MemoryUsage m) {
            nonHeapMemory = m;
            return this;
        }

        public Memory build() {
            return new Memory(this);
        }

    }

}

Imports for SystemInformationUtils:

import com.sun.management.OperatingSystemMXBean;
import com.telenor.fun.stuff.system.model.Memory;
import com.telenor.fun.stuff.system.model.OS;
import com.telenor.fun.stuff.system.model.SystemInformation;

import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.text.DecimalFormat;