介紹Hyperic-hq產品的基礎包sigar.jar

Hyperic-hq產品的基礎包sigar：sigar是Hyperic HQ主要的數據收集組件。它用來從許多平臺收集系統和處理信息，這些平臺包括：Linux, Windows, Solaris, AIX, HP-UX, FreeBSD and Mac OSX。Sigar有C，C#，Java和Perl API，java版的API爲sigar.jar sigar.jar的底層是用C語言編寫的，它通過本地方法來調用操作系統API來獲取系統相關數據。Windows操作系統下Sigar.jar 依賴sigar-amd64-winnt.dll或sigar-x86-winnt.dll，linux 操作系統下則依賴libsigar-amd64-linux.so或libsigar-x86-linux.so，（現在大家是不是有些擔心這些依賴我們去那裏弄呢，呵呵，不用擔心，這些依賴庫隨sigar一起發佈，而且全部開源）。Sigar API 提供一個方便的接口來收集系統信息，如：
◆系統內存，頁面交換，cpu，平均負載，運行時間，登錄信息
◆每個進程佔用的內存，cpu，帳號信息，狀態，參數，環境，打開的文件
◆文件系統探測和度量
◆網絡接口探測，配置信息和度量
◆網絡路由和連接表

[b]
[目前發現不能實時的監控本地磁盤信息,我插上一個U盤後,竟然沒有發現][/b][color=red][/color]
Hyperic-hq官方網站：http://support.hyperic.com/display/SIGAR/Home#
Sigar.jar下載地址：http://sourceforge.net/projects/sigar/files/
Sigar.jar包的使用方法：

1. CPU資源信息
a) CPU數量（單位：個）
privatestaticint getCpuCount() throws SigarException {
Sigar sigar = new Sigar();
try {
return sigar.getCpuInfoList().length;
} finally {
sigar.close();
}
}
b) CPU的總量（單位：HZ）及CPU的相關信息
Sigar sigar = getSigar();
CpuInfo infos[] = sigar.getCpuInfoList();
for (int i = 0; i < infos.length; i++) {//不管是單塊CPU還是多CPU都適用
CpuInfo info = infos[i];
traceln("mhz=" + info.getMhz());//CPU的總量MHz
traceln("vendor=" + info.getVendor());//獲得CPU的賣主，如：Intel
traceln("model=" + info.getModel());//獲得CPU的類別，如：Celeron
traceln("cache size=" + info.getCacheSize());//緩衝存儲器數量
}
c) CPU的用戶使用量、系統使用剩餘量、總的剩餘量、總的使用佔用量等（單位：100%）
publicvoid testCpuPerc() {
Sigar sigar = new Sigar();
// 方式一，主要是針對一塊CPU的情況
CpuPerc cpu;
try {
cpu = sigar.getCpuPerc();
printCpuPerc(cpu);
} catch (SigarException e) {
e.printStackTrace();
}
// 方式二，不管是單塊CPU還是多CPU都適用
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()));// 用戶使用率
println("Sys :" + CpuPerc.format(cpu.getSys()));// 系統使用率
println("Wait :" + CpuPerc.format(cpu.getWait()));// 當前等待率
println("Nice :" + CpuPerc.format(cpu.getNice()));//
println("Idle :" + CpuPerc.format(cpu.getIdle()));// 當前空閒率
println("Total :" + CpuPerc.format(cpu.getCombined()));// 總的使用率
}
d) ……
2. 內存資源信息
a) 物理內存信息
Sigar sigar = new Sigar();
Mem mem = sigar.getMem();
// 內存總量
System.out.println("Total = " + mem.getTotal() / 1024L + "K av");
// 當前內存使用量
System.out.println("Used = " + mem.getUsed() / 1024L + "K used");
// 當前內存剩餘量
System.out.println("Free = " + mem.getFree() / 1024L + "K free");
b) 系統頁面文件交換區信息
Sigar sigar = new Sigar();
Swap swap = sigar.getSwap();
// 交換區總量
System.out.println("Total = " + swap.getTotal() / 1024L + "K av");
// 當前交換區使用量
System.out.println("Used = " + swap.getUsed() / 1024L + "K used");
// 當前交換區剩餘量
System.out.println("Free = " + swap.getFree() / 1024L + "K free");
c) ……
3. 操作系統信息
a) 取到當前操作系統的名稱：
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) 取當前操作系統的信息
publicvoid testGetOSInfo() {
OperatingSystem OS = OperatingSystem.getInstance();
// 操作系統內核類型如： 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());//
// 系統描述
System.out.println("OS.getDescription() = " + OS.getDescription());
System.out.println("OS.getMachine() = " + OS.getMachine());//
// 操作系統類型
System.out.println("OS.getName() = " + OS.getName());
System.out.println("OS.getPatchLevel() = " + OS.getPatchLevel());//
// 操作系統的賣主
System.out.println("OS.getVendor() = " + OS.getVendor());
// 賣主名稱
System.out.println("OS.getVendorCodeName() = " + OS.getVendorCodeName());
// 操作系統名稱
System.out.println("OS.getVendorName() = " + OS.getVendorName());
// 操作系統賣主類型
System.out.println("OS.getVendorVersion() = " + OS.getVendorVersion());
// 操作系統的版本號
System.out.println("OS.getVersion() = " + OS.getVersion());
}
c) 取當前系統進程表中的用戶信息
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());
//當前系統進程表中的用戶名
Sysout.out.println ("getUser() = " + _who.getUser());
}
}
} catch (SigarException e) {
e.printStackTrace();
}
}
d) ……
4. 資源信息（主要是硬盤）
a) 取硬盤已有的分區及其詳細信息（通過sigar.getFileSystemList()來獲得FileSystem列表對象，然後對其進行編歷）：
publicvoid testFileSystemInfo() throws Exception {
Sigar sigar = getSigar();
FileSystem fslist[] = sigar.getFileSystemList();
String dir = System.getProperty("user.home");//當前用戶文件夾路徑
for (int i = 0; i < fslist.length; i++) {
System.out.println("\n~~~~~~~~~~" + i + "~~~~~~~~~~");
FileSystem fs = fslist[i];
// 分區的盤符名稱
System.out.println("fs.getDevName() = " + fs.getDevName());
// 分區的盤符名稱
System.out.println("fs.getDirName() = " + fs.getDirName());
System.out.println("fs.getFlags() = " + fs.getFlags());//
// 文件系統類型，比如 FAT32、NTFS
System.out.println("fs.getSysTypeName() = " + fs.getSysTypeName());
// 文件系統類型名，比如本地硬盤、光驅、網絡文件系統等
System.out.println("fs.getTypeName() = " + fs.getTypeName());
// 文件系統類型
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 : 本地硬盤
// 文件系統總大小
System.out.println(" Total = " + usage.getTotal() + "KB");
// 文件系統剩餘大小
System.out.println(" Free = " + usage.getFree() + "KB");
// 文件系統可用大小
System.out.println(" Avail = " + usage.getAvail() + "KB");
// 文件系統已經使用量
System.out.println(" Used = " + usage.getUsed() + "KB");
double usePercent = usage.getUsePercent() * 100D;
// 文件系統資源的利用率
System.out.println(" Usage = " + usePercent + "%");
break;
case 3:// TYPE_NETWORK ：網絡
break;
case 4:// TYPE_RAM_DISK ：閃存
break;
case 5:// TYPE_CDROM ：光驅
break;
case 6:// TYPE_SWAP ：頁面交換
break;
}
System.out.println(" DiskReads = " + usage.getDiskReads());
System.out.println(" DiskWrites = " + usage.getDiskWrites());
}
return;
}
b) ……
5. 網絡信息
a) 當前機器的正式域名
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) 取到當前機器的IP地址
public String getDefaultIpAddress() {
String address = null;
try {
address = InetAddress.getLocalHost().getHostAddress();
// 沒有出現異常而正常當取到的IP時，如果取到的不是網卡循回地址時就返回
// 否則再通過Sigar工具包中的方法來獲取
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) 取到當前機器的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;
}
/*如果存在多張網卡包括虛擬機的網卡，默認只取第一張網卡的MAC地址，如果要返回所有的網卡（包括物理的和虛擬的）則可以修改方法的返回類型爲數組或Collection，通過在for循環裏取到的多個MAC地址。*/
hwaddr = cfg.getHwaddr();
break;
}
return hwaddr != null ? hwaddr : null;
} catch (Exception e) {
returnnull;
} finally {
if (sigar != null)
sigar.close();
}
}
d) 根據MAC地址來獲得一個GUID號
public String getGUID(String mac) {
if (mac == null)
returnnull;
EthernetAddress eAddr = new EthernetAddress(mac);
return UUIDGenerator.getInstance().generateTimeBasedUUID(eAddr)
.toString();
}
e) 獲取網絡流量等信息
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);//網絡設備名
print("Address = "+ ifconfig.getAddress());//IP地址
print("Netmask = "+ ifconfig.getNetmask());//子網掩碼
if ( (ifconfig.getFlags() & 1L) <= 0L) {
print("!IFF_UP...skipping getNetInterfaceStat");
continue;
}
try {
NetInterfaceStat ifstat = sigar.getNetInterfaceStat(name);
print("RxPackets = " + ifstat.getRxPackets());//接收的總包裹數
print("TxPackets = " + ifstat.getTxPackets());//發送的總包裹數
print("RxBytes = " + ifstat.getRxBytes());//接收到的總字節數
print("TxBytes = " + ifstat.getTxBytes());//發送的總字節數
print("RxErrors = " + ifstat.getRxErrors());//接收到的錯誤包數
print("TxErrors = " + ifstat.getTxErrors());//發送數據包時的錯誤數
print("RxDropped = " + ifstat.getRxDropped());//接收時丟棄的包數
print("TxDropped = " + ifstat.getTxDropped());//發送時丟棄的包數
} 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());//網關廣播地址
System.out.println("cfg.getHwaddr() = " + cfg.getHwaddr());//網卡MAC地址
System.out.println("cfg.getNetmask() = " + cfg.getNetmask());//子網掩碼
System.out.println("cfg.getDescription() = " + cfg.getDescription());//網卡描述信息
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();
}
}