snmp采集服务器信息(sigar.jar实现)

通过Hyperic-hq产品的基础包sigar.jar来实现服务器状态数据的获取。Sigar.jar包是通过本地方法来调用操作系统API来获取系统相关数据。Windows操作系统下Sigar.jar依赖sigar-amd64-winnt.dll或sigar-x86-winnt.dll，linux 操作系统下则依赖libsigar-amd64-linux.so或libsigar-x86-linux.so……而Sigar.jar还依赖于jug-asl-2.0.0.jar、log4j-1.2.14.jar、Junit.jar，

Hyperic-hq官方网站：http://www.hyperic.com

Sigar.jar下载地址：http://sigar.hyperic.com

Sigar.jar包的使用方法：

1、              CPU资源信息

a)         CPU数量（单位：个）

privatestaticint getCpuCount() throws SigarException {

     Sigar sigar = new Sigar();

     try {

         return sigar.getCpuInfoList().length;

     } finally {

         sigar.close();

     }

}

b)        CPU的总量（单位：HZ）及CPU的相关信息

Sigar sigar = getSigar();

       CpuInfo infos[] = sigar.getCpuInfoList();

       for (int i = 0; i < infos.length; i++) {//不管是单块CPU还是多CPU都适用

           CpuInfo info = infos[i];

           traceln("mhz=" + info.getMhz());//CPU的总量MHz

           traceln("vendor=" + info.getVendor());//获得CPU的卖主，如：Intel

           traceln("model=" + info.getModel());//获得CPU的类别，如：Celeron

           traceln("cache size=" + info.getCacheSize());//缓冲存储器数量

}

c)         CPU的用户使用量、系统使用剩余量、总的剩余量、总的使用占用量等（单位：100%）

publicvoid testCpuPerc() {

           Sigar sigar = new Sigar();

           // 方式一，主要是针对一块CPU的情况

           CpuPerc cpu;

           try {

               cpu = sigar.getCpuPerc();

               printCpuPerc(cpu);

           } catch (SigarException e) {

               e.printStackTrace();

           }

           // 方式二，不管是单块CPU还是多CPU都适用

           CpuPerc cpuList[] = null;

           try {

               cpuList = sigar.getCpuPercList();

           } catch (SigarException e) {

               e.printStackTrace();

               return;

           }

           for (int i = 0; i < cpuList.length; i++) {

               printCpuPerc(cpuList[i]);

           }

        }

        privatevoid printCpuPerc(CpuPerc cpu) {

           println("User :" + CpuPerc.format(cpu.getUser()));// 用户使用率

           println("Sys :" + CpuPerc.format(cpu.getSys()));// 系统使用率

           println("Wait :" + CpuPerc.format(cpu.getWait()));// 当前等待率

           println("Nice :" + CpuPerc.format(cpu.getNice()));//

           println("Idle :" + CpuPerc.format(cpu.getIdle()));// 当前空闲率

           println("Total :" + CpuPerc.format(cpu.getCombined()));// 总的使用率

}

d)        ……

2、              内存资源信息

a)        物理内存信息

Sigar sigar = new Sigar();

Mem mem = sigar.getMem();

// 内存总量

       System.out.println("Total = " + mem.getTotal() / 1024L + "K av");

       // 当前内存使用量

       System.out.println("Used = " + mem.getUsed() / 1024L + "K used");

       // 当前内存剩余量

System.out.println("Free = " + mem.getFree() / 1024L + "K free");

b)        系统页面文件交换区信息

Sigar sigar = new Sigar();

Swap swap = sigar.getSwap();

// 交换区总量

       System.out.println("Total = " + swap.getTotal() / 1024L + "K av");

       // 当前交换区使用量

       System.out.println("Used = " + swap.getUsed() / 1024L + "K used");

       // 当前交换区剩余量

System.out.println("Free = " + swap.getFree() / 1024L + "K free");

c)      ……

3、              操作系统信息

a)      取到当前操作系统的名称：

private String getPlatformName() {

           String hostname = "";

           try {

               hostname = InetAddress.getLocalHost().getHostName();

           } catch (Exception exc) {

               Sigar sigar = new Sigar();

               try {

                  hostname = sigar.getNetInfo().getHostName();

               } catch (SigarException e) {

                  hostname = "localhost.unknown";

               } finally {

                  sigar.close();

               }

           }

           return hostname;

}

b)        取当前操作系统的信息

        publicvoid testGetOSInfo() {

           OperatingSystem OS = OperatingSystem.getInstance();

           // 操作系统内核类型如： 386、486、586等x86

           System.out.println("OS.getArch() = " + OS.getArch());

           System.out.println("OS.getCpuEndian() = " + OS.getCpuEndian());//

           System.out.println("OS.getDataModel() = " + OS.getDataModel());//

           // 系统描述

           System.out.println("OS.getDescription() = " + OS.getDescription());

           System.out.println("OS.getMachine() = " + OS.getMachine());//

           // 操作系统类型

           System.out.println("OS.getName() = " + OS.getName());

           System.out.println("OS.getPatchLevel() = " + OS.getPatchLevel());//

           // 操作系统的卖主

           System.out.println("OS.getVendor() = " + OS.getVendor());

           // 卖主名称

           System.out.println("OS.getVendorCodeName() = " + OS.getVendorCodeName());

           // 操作系统名称

           System.out.println("OS.getVendorName() = " + OS.getVendorName());

           // 操作系统卖主类型

           System.out.println("OS.getVendorVersion() = " + OS.getVendorVersion());

           // 操作系统的版本号

           System.out.println("OS.getVersion() = " + OS.getVersion());

}

c)         取当前系统进程表中的用户信息

publicvoid testWho() {

           try {

               Sigar sigar = new Sigar();

               Who who[] = sigar.getWhoList();

               if (who != null && who.length > 0) {

                  for (int i = 0; i < who.length; i++) {

                      Sysout.out.println("\n~~~~~~~~~" + String.valueOf(i) + "~~~~~~~~~");

                      Who _who = who[i];

                      Sysout.out.println ("getDevice() = " + _who.getDevice());

                      Sysout.out.println ("getHost() = " + _who.getHost());

                      Sysout.out.println ("getTime() = " + _who.getTime());

                     //当前系统进程表中的用户名

                      Sysout.out.println ("getUser() = " + _who.getUser());

                  }

               }

           } catch (SigarException e) {

               e.printStackTrace();

           }

}

d)        ……

4、              资源信息（主要是硬盘）

a)      取硬盘已有的分区及其详细信息（通过sigar.getFileSystemList()来获得FileSystem列表对象，然后对其进行编历）：

publicvoid testFileSystemInfo() throws Exception {

           Sigar sigar = getSigar();

           FileSystem fslist[] = sigar.getFileSystemList();

           String dir = System.getProperty("user.home");//当前用户文件夹路径

           for (int i = 0; i < fslist.length; i++) {

               System.out.println("\n~~~~~~~~~~" + i + "~~~~~~~~~~");

               FileSystem fs = fslist[i];

               // 分区的盘符名称

               System.out.println("fs.getDevName() = " + fs.getDevName());

               // 分区的盘符名称

               System.out.println("fs.getDirName() = " + fs.getDirName());

               System.out.println("fs.getFlags() = " + fs.getFlags());//

               // 文件系统类型，比如 FAT32、NTFS

               System.out.println("fs.getSysTypeName() = " + fs.getSysTypeName());

               // 文件系统类型名，比如本地硬盘、光驱、网络文件系统等

               System.out.println("fs.getTypeName() = " + fs.getTypeName());

               // 文件系统类型

               System.out.println("fs.getType() = " + fs.getType());

               FileSystemUsage usage = null;

               try {

                  usage = sigar.getFileSystemUsage(fs.getDirName());

               } catch (SigarException e) {

                  if (fs.getType() == 2)

                      throw e;

                  continue;

               }

               switch (fs.getType()) {

               case 0: // TYPE_UNKNOWN ：未知

                  break;

               case 1: // TYPE_NONE

                  break;

               case 2: // TYPE_LOCAL_DISK : 本地硬盘

                  // 文件系统总大小

                  System.out.println(" Total = " + usage.getTotal() + "KB");

                  // 文件系统剩余大小

                  System.out.println(" Free = " + usage.getFree() + "KB");

                  // 文件系统可用大小

                  System.out.println(" Avail = " + usage.getAvail() + "KB");

                  // 文件系统已经使用量

                  System.out.println(" Used = " + usage.getUsed() + "KB");

                  double usePercent = usage.getUsePercent() * 100D;

                  // 文件系统资源的利用率

                  System.out.println(" Usage = " + usePercent + "%");

break;

               case 3:// TYPE_NETWORK ：网络

                  break;

               case 4:// TYPE_RAM_DISK ：闪存

                  break;

               case 5:// TYPE_CDROM ：光驱

                  break;

               case 6:// TYPE_SWAP ：页面交换

                  break;

               }

               System.out.println(" DiskReads = " + usage.getDiskReads());

               System.out.println(" DiskWrites = " + usage.getDiskWrites());

           }

           return;

}

b)      ……

5、              网络信息

a)      当前机器的正式域名

public String getFQDN(){

           try {

               return InetAddress.getLocalHost().getCanonicalHostName();

           } catch (UnknownHostException e) {

               try {

                  Sigar sigar = new Sigar();

                  return sigar.getFQDN();

               } catch (SigarException ex) {

                  returnnull;

               } finally {

                     sigar.close();

                 }

           }

}

b)        取到当前机器的IP地址

public String getDefaultIpAddress() {

             String address = null;

             try {

                 address = InetAddress.getLocalHost().getHostAddress();

                 // 没有出现异常而正常当取到的IP时，如果取到的不是网卡循回地址时就返回

               // 否则再通过Sigar工具包中的方法来获取

if (!NetFlags.LOOPBACK_ADDRESS.equals(address)) {

                      return address;

                 }

             } catch (UnknownHostException e) {

                 //hostname not in DNS or /etc/hosts

             }

             Sigar sigar = new Sigar();

             try {

                 address = sigar.getNetInterfaceConfig().getAddress();

             } catch (SigarException e) {

                 address = NetFlags.LOOPBACK_ADDRESS;

             } finally {

                 sigar.close();

             }

return address;

}

c)         取到当前机器的MAC地址

public String getMAC() {

           Sigar sigar = null;

           try {

               sigar = new Sigar();

               String[] ifaces = sigar.getNetInterfaceList();

               String hwaddr = null;

               for (int i = 0; i < ifaces.length; i++) {

                  NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);

                  if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress())

                         || (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0

                         || NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {

                      continue;

                  }

                  /*如果存在多张网卡包括虚拟机的网卡，默认只取第一张网卡的MAC地址，如果要返回所有的网卡（包括物理的和虚拟的）则可以修改方法的返回类型为数组或Collection，通过在for循环里取到的多个MAC地址。*/

                  hwaddr = cfg.getHwaddr();

                  break;

               }

               return hwaddr != null ? hwaddr : null;

           } catch (Exception e) {

               returnnull;

           } finally {

               if (sigar != null)

                  sigar.close();

           }

}

d)        根据MAC地址来获得一个GUID号

public String getGUID(String mac) {

           if (mac == null)

               returnnull;

           EthernetAddress eAddr = new EthernetAddress(mac);

           return UUIDGenerator.getInstance().generateTimeBasedUUID(eAddr)

                  .toString();

}

e)         获取网络流量等信息

publicvoid testNetIfList() throws Exception {

           Sigar sigar = new Sigar();

           String ifNames[] = sigar.getNetInterfaceList();

           for (int i = 0; i < ifNames.length; i++) {

               String name = ifNames[i];

               NetInterfaceConfig ifconfig = sigar.getNetInterfaceConfig(name);

               print("\nname = " + name);//网络设备名

               print("Address = "+ ifconfig.getAddress());//IP地址

               print("Netmask = "+ ifconfig.getNetmask());//子网掩码

               if ( (ifconfig.getFlags() & 1L) <= 0L) {

                  print("!IFF_UP...skipping getNetInterfaceStat");

                  continue;

               }

               try {

                  NetInterfaceStat ifstat = sigar.getNetInterfaceStat(name);

                  print("RxPackets = " + ifstat.getRxPackets());//接收的总包裹数

                  print("TxPackets = " + ifstat.getTxPackets());//发送的总包裹数

                  print("RxBytes = " + ifstat.getRxBytes());//接收到的总字节数

                  print("TxBytes = " + ifstat.getTxBytes());//发送的总字节数

                  print("RxErrors = " + ifstat.getRxErrors());//接收到的错误包数

                  print("TxErrors = " + ifstat.getTxErrors());//发送数据包时的错误数

                  print("RxDropped = " + ifstat.getRxDropped());//接收时丢弃的包数

                  print("TxDropped = " + ifstat.getTxDropped());//发送时丢弃的包数

               } catch (SigarNotImplementedException e) {

               } catch (SigarException e) {

                  print(e.getMessage());

               }

           }

}

void print(String msg){

           System.out.println(msg);

}

f)         一些其他的信息

        privatevoid getEthernetInfo(){

           Sigar sigar = null;

           try {

               sigar = new Sigar();

               String[] ifaces = sigar.getNetInterfaceList();

               for (int i = 0; i < ifaces.length; i++) {

                  NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);

                  if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress())

                         || (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0

                         || NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {

                      continue;

                  }

                  System.out.println("cfg.getAddress() = " + cfg.getAddress());//IP地址

                  System.out.println("cfg.getBroadcast() = " + cfg.getBroadcast());//网关广播地址

                  System.out.println("cfg.getHwaddr() = " + cfg.getHwaddr());//网卡MAC地址

                  System.out.println("cfg.getNetmask() = " + cfg.getNetmask());//子网掩码

                  System.out.println("cfg.getDescription() = " + cfg.getDescription());//网卡描述信息

                  System.out.println("cfg.getType() = " + cfg.getType());//

                  System.out.println("cfg.getDestination() = " + cfg.getDestination());

                  System.out.println("cfg.getFlags() = " + cfg.getFlags());//

                  System.out.println("cfg.getMetric() = " + cfg.getMetric());

                  System.out.println("cfg.getMtu() = " + cfg.getMtu());

                  System.out.println("cfg.getName() = " + cfg.getName());

                  System.out.println();

               }

           } catch (Exception e) {

               System.out.println("Error while creating GUID" + e);

           } finally {

               if (sigar != null)

                  sigar.close();

           }

}