hyperic-sigar 获取全面的系统信息

转自：http://blog.sina.com.cn/s/blog_6151984a0100ni1n.html

Hyperic-Sigar简介

Hyperic-Sigar是一个收集系统各项底层信息的工具集.他有如下特点:

1. 收集信息全面

收集CPU,MEM,NETWORK,PROCESS,IOSTAT等

使用Sigar,你完全可以模仿出cpuinfo,meminfo,top,free,ifconfig,ipconfig,netstat,route,df,du,ps,ls等多种unix平台和windows平台的指令.

2.跨平台,支持多数平台

支持的平台包括:windows系列(32系列,IA64系列,AMD64系列),linux系列,freeBsd系列,HPUnix 系列,Sun solaris/Sparc/Sparc64系列,macOs系列,AIX系列等

3.提供的API接口全面

sigar本身由C语言开发而成,提供了丰富的API接口,包括:JAVA,.NET,PERL,PHP,PYTHON,RUBY

通过JAVA API接口调用Sigar,获取系统信息的例子

1.先确定基本Sigar库

Sigar JAVA编程只是JAVA API编程,需要调用Sigar的基本库,因此需要把Sigar基本库放在对应的ClassPath下

注意:Sigar为不同平台提供了不同的库文件.典型的:

windows平台:sigar-x86-winnt.dll

linux平台:libsigar-x86-linux.so或

solaris平台: libsigar-x86-solaris.so或libsigar-sparc-solaris.so或libsigar-sparc64-solaris.so

64位平台:分为至强的libsigar-ia64-linux.so和AMD的libsigar-amd64-linux.so,sigar-amd64-winnt.dll

2. 程序代码

public class SystemInfo { private Sigar sigar ; private SigarProxy proxy; private StringBuilder info = new StringBuilder(); private void sigarInit(boolean isProxy) { sigar = new Sigar(); if(isProxy) proxy = SigarProxyCache.newInstance(this.sigar); } private void shutdown() { this.sigar.close(); } public String getInfo() { return info.toString(); } public void clearInfo() { if ( null != info ) info.delete(0,info.length()); } private void println(String arg){ info.append(arg+"\n"); } public String sprintf(String format, Object[] items) { return new PrintfFormat(format).sprintf(items); } public void printf(String format, Object[] items) { println(sprintf(format, items)); }

public void cpuInfo() { clearInfo(); println("============Current system Cpu information================"); try { sigarInit(false); org.hyperic.sigar.CpuInfo[] infos = this.sigar.getCpuInfoList(); CpuPerc[] cpus = this.sigar.getCpuPercList(); org.hyperic.sigar.CpuInfo info = infos[0]; long cacheSize = info.getCacheSize(); println("Vendor........." + info.getVendor()); println("Model.........." + info.getModel()); println("Mhz............" + info.getMhz()); println("Total CPUs....." + info.getTotalCores()); println("Physical CPUs.." + info.getTotalSockets()); println("Cores per CPU.." + info.getCoresPerSocket()); if (cacheSize != Sigar.FIELD_NOTIMPL) { println("Cache size...." + cacheSize); } println(""); for (int i=0; i<cpus.length; i++) { println("CPU " + i + "........."); outputCpuPerc(cpus[i]); } println("Totals........"); outputCpuPerc(this.sigar.getCpuPerc()); } catch (SigarException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally{ shutdown(); } } private void outputCpuPerc(CpuPerc cpu) { println("User Time....." + CpuPerc.format(cpu.getUser())); println("Sys Time......" + CpuPerc.format(cpu.getSys())); println("Idle Time....." + CpuPerc.format(cpu.getIdle())); println("Wait Time....." + CpuPerc.format(cpu.getWait())); println("Nice Time....." + CpuPerc.format(cpu.getNice())); println("Combined......" + CpuPerc.format(cpu.getCombined())); println("Irq Time......" + CpuPerc.format(cpu.getIrq())); if (SigarLoader.IS_LINUX) { println("SoftIrq Time.." + CpuPerc.format(cpu.getSoftIrq())); println("Stolen Time...." + CpuPerc.format(cpu.getStolen())); } println(""); }

private static Long format(long value) { return new Long(value / 1024); } public void memInfo() throws SigarException { clearInfo(); println("============Display information about free and used memory================"); try { sigarInit(false); Mem mem = this.sigar.getMem(); Swap swap = this.sigar.getSwap(); Object[] header = new Object[] { "total", "used", "free" }; printf("s s s", header); Object[] memRow = new Object[] { format(mem.getTotal()), format(mem.getUsed()), format(mem.getFree()) }; printf("Mem: ldK ldK ldK", memRow); Object[] memPercent = new Object[3]; memPercent[0] = "100%"; double d = mem.getUsedPercent(); d=((int)(d*100))/100; // 取小数点后两位的简便方法 memPercent[1] = d + "%"; d = mem.getFreePercent(); d=((int)(d*100))/100; memPercent[2] = d + "%"; // 取小数点后两位的简便方法 printf("MemPer: ls ls ls", memPercent); //e.g. linux Object[] actualRow = new Object[] { format(mem.getActualUsed()), format(mem.getActualFree()) }; if ((mem.getUsed() != mem.getActualUsed()) || (mem.getFree() != mem.getActualFree())) { printf("-/+ buffers/cache: " + "ldK dK", actualRow); } Object[] swapRow = new Object[] { format(swap.getTotal()), format(swap.getUsed()), format(swap.getFree()) }; printf("Swap: ldK ldK ldK", swapRow); printf("RAM: ldM", new Object[] { mem.getRam()}); } catch (RuntimeException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally{ shutdown(); } }

public void dfInfo() throws SigarException { clearInfo(); println("============Report filesystem disk space usage==============="); try { sigarInit(true); FileSystem[] fslist = this.proxy.getFileSystemList(); String[] HEADER = new String[] { "Filesystem", "Size", "Used", "Avail", "Use%", "Mounted on", "Type" }; printf(" ls ls ls ls ls ls ls",HEADER); for (int i=0; i<fslist.length; i++) { singleFsInfo(fslist[i]); } } catch (RuntimeException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { shutdown(); } } public void singleFsInfo(FileSystem fs) throws SigarException { long used, avail, total, pct; try { FileSystemUsage usage; if (fs instanceof NfsFileSystem) { NfsFileSystem nfs = (NfsFileSystem)fs; if (!nfs.ping()) { println(nfs.getUnreachableMessage()); return; } } usage = this.sigar.getFileSystemUsage(fs.getDirName()); used = usage.getTotal() - usage.getFree(); avail = usage.getAvail(); total = usage.getTotal(); pct = (long)(usage.getUsePercent() * 100); } catch (SigarException e) { //e.g. on win32 D:\ fails with "Device not ready" //if there is no cd in the drive. used = avail = total = pct = 0; } String usePct; if (pct == 0) { usePct = "-"; } else { usePct = pct + "%"; } Object[] items = new Object[] { fs.getDevName(), Sigar.formatSize(total* 1024), Sigar.formatSize(used* 1024), Sigar.formatSize(avail* 1024), usePct, fs.getDirName(), fs.getSysTypeName() + "/" + fs.getTypeName() }; printf(" ls ls ls ls ls ls ls",items); }

public void duInfo(String root) throws SigarException { clearInfo(); println("============Display usage for a directory recursively==============="); String rootDir = root; try { sigarInit(false); printf(" ls ls ",new Object[]{"size","directory"}); List<String> rootList = new ArrayList<String>(); rootList.add(rootDir); treePrint(rootList); } catch (RuntimeException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally { shutdown(); } } public void treePrint(List<String> treeList) throws SigarException{ for(String temp:treeList){ File dirFile = new File(temp); if ( dirFile.isDirectory()){ DirUsage du = this.sigar.getDirUsage(temp); Object[] items = new Object[] { Sigar.formatSize(du.getDiskUsage()), temp }; printf(" ls ls ",items); String[] files = dirFile.list(); List<String> tList = new ArrayList(); for (int i = 0 ; i < files.length ; i++){ String dirFull = temp + "\\" + files[i]; if( new File(dirFull).isDirectory()){ tList.add(dirFull); } } treePrint(tList); } } }

public static void main(String[] args) throws SigarException { SystemInfo one = new SystemInfo(); one.cpuInfo(); System.out.println(one.getInfo()); one.memInfo(); System.out.println(one.getInfo()); one.dfInfo(); System.out.println(one.getInfo()); one.duInfo("c:\\downloads"); System.out.println(one.getInfo()); } }

3.测试执行

windows平台

D:\Documents and Settings\mac>cd \java\commmandline\sigartest D:\java\commmandline\sigartest>dir 驱动器 D 中的卷是 DATA 卷的序列号是 495F-895B D:\java\commmandline\sigartest 的目录 2010-12-02 04:45 <DIR> . 2010-12-02 04:45 <DIR> .. 2010-11-30 14:48 418,299 sigar.jar 2010-12-02 04:51 186 runSystemInfo.bat 2010-12-02 04:52 183 runNetInfo.bat 2010-12-02 16:14 89,220 sigartest.jar 2009-03-25 15:58 258,048 sigar-x86-winnt.dll 5 个文件 765,936 字节 2 个目录 16,477,224,960 可用字节 D:\java\commmandline\sigartest>type runSystemInfo.bat java -classpath D:\java\commmandline\sigartest\sigartest.jar;D:\java\commmandlin e\sigartest\sigar.jar;D:\java\commmandline\sigartest\sigar-x86-winnt.dll com.mac home.sigar.test.SystemInfo D:\java\commmandline\sigartest>

linux平台

libsigar-x86-linux.so runNetInfo.sh runSystemInfo.sh sigar.jar sigartest.jar [root@oracle sigartest]# cat runSystemInfo.sh #!/bin/sh java -classpath sigartest.jar:sigar.jar com.machome.sigar.test.SystemInfo [root@oracle sigartest]# [root@oracle sigartest]# cat runSystemInfo.sh #!/bin/sh java -classpath sigartest.jar:sigar.jar com.machome.sigar.test.SystemInfo [root@oracle sigartest]# ./runSystemInfo.sh

执行测试:

============Current system Cpu information================ Vendor.........Intel Model..........Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz Mhz............1195 Total CPUs.....1 Physical CPUs..1 Cores per CPU..1 CPU 0......... User Time.....5.9% Sys Time......8.1% Idle Time.....85.8% Wait Time.....0.0% Nice Time.....0.0% Combined......14.1% Irq Time......0.0% Totals........ User Time.....54.6% Sys Time......11.2% Idle Time.....32.2% Wait Time.....0.0% Nice Time.....0.0% Combined......65.9% Irq Time......1.8% ============Display information about free and used memory================ total used free Mem: 1015276K 877456K 137820K MemPer: 100% 86.0% 13.0% Swap: 2447596K 997476K 1450120K RAM: 992M ============Report filesystem disk space usage=============== Filesystem Size Used Avail Use% Mounted on Type C:\ 20G 13G 6.5G 67% C:\ FAT32/local D:\ 88G 72G 15G 83% D:\ FAT32/local E:\ 0 0 0 - E:\ cdrom/cdrom F:\ 0 0 0 - F:\ cdrom/cdrom ============Display usage for a directory recursively=============== size directory 2.9G c:\downloads 180M c:\downloads\bj 0 c:\downloads\pic 0 c:\downloads\music 0 c:\downloads\video 0 c:\downloads\Movie 0 c:\downloads\software 0 c:\downloads\mp3 0 c:\downloads\game 0 c:\downloads\driver 17M c:\downloads\ftpserverdir 8.7M c:\downloads\ftpserverdir\test1 488M c:\downloads\flv