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import java.io.*; |
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import java.util.*; |
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|
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class DecodeCPU_TXT { |
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|
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XMLFormatter packet; |
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|
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public DecodeCPU_TXT(){ |
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|
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// open the file and read in all the relevant details |
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try { |
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String[] cmd = {"/usr/local/sbin/top","-s1","-d2","0"}; |
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Process proc = Runtime.getRuntime().exec(cmd); |
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// this process will take atleast 2 seconds to complete |
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BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream())); |
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|
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String line = new String(); |
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|
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// get rid of the first output (it doesn't contain cpu info) |
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for ( int i=0; i < 7; i++ ){ |
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line = in.readLine(); |
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//System.out.println("Throwing away line: "+line); |
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} |
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// first line has the format: load averages: 0.30, 0.27, 0.29 16:58:10 |
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// tokenize it using spaces as delimiters? |
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line = in.readLine(); |
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// it seems some versions of top prefix this line with something else... lets remove it :) |
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line = line.substring(line.indexOf("load averages:")); |
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// System.out.println("line1: "+line); |
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StringTokenizer tok = new StringTokenizer(line,":",false); |
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tok.nextToken(); // load averages |
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tok.nextToken(" ,"); // : |
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String load1 = tok.nextToken(); // "0.30" |
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// System.out.println("load1: "+load1); |
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String load5 = tok.nextToken(); // "0.27" |
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// System.out.println("load5: "+load5); |
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String load15 = tok.nextToken(); // "0.29" |
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// System.out.println("load15: "+load15); |
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String sTime = tok.nextToken(); // "16:58:10" |
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// System.out.println("sTime: "+sTime); |
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|
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// get the next line |
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line = in.readLine(); // 632 processes: 591 sleeping, 10 zombie, 30 stopped, 1 on cpu |
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// System.out.println("line2: "+line); |
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tok = new StringTokenizer(line," ",false); |
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String totalProcesses = tok.nextToken(); // "632" |
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// System.out.println("totalProcesses: "+totalProcesses); |
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tok.nextToken(":"); // processes: |
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String sleeping = tok.nextToken(": ,"); // "591" |
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// System.out.println("sleeping: "+sleeping); |
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tok.nextToken(); // sleeping |
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String zombie = tok.nextToken(); // "10" |
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// System.out.println("zombie: "+zombie); |
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tok.nextToken(); // zombie |
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String stopped = tok.nextToken(); // "30" |
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// System.out.println("stopped: "+stopped); |
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tok.nextToken(); // stopped |
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String onCPU = tok.nextToken(); // "1" |
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// System.out.println("onCPU: "+onCPU); |
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|
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// get the next line |
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line = in.readLine(); // CPU states: 71.1% idle, 1.8% user, 4.8% kernel, 22.2% iowait, 0.0% swap |
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// System.out.println("line3: "+line); |
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tok = new StringTokenizer(line,":%,",false); |
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tok.nextToken(); // CPU states |
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String idle = tok.nextToken(); // "71.1" |
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// System.out.println("idle: "+idle); |
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tok.nextToken(); // idle |
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String user = tok.nextToken(",%"); // " 1.8" |
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// System.out.println("user: "+user); |
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tok.nextToken(); // user |
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String kernel = tok.nextToken(); // " 4.8" |
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// System.out.println("kernel: "+kernel); |
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tok.nextToken(); // kernel |
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String iowait = tok.nextToken(); // " 22.2" |
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// System.out.println("iowait: "+iowait); |
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tok.nextToken(); // iowait |
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String swap = tok.nextToken(); // " 0.0" |
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// System.out.println("swap: "+swap); |
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|
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line = in.readLine(); // Memory: 4096M real, 2380M free, 1237M swap in use, 9774M swap free |
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// System.out.println("line4: "+line); |
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tok = new StringTokenizer(line,": ,",false); |
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tok.nextToken(); // Memory: |
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String real = tok.nextToken(); // "4096M" |
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// System.out.println("real: "+real); |
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tok.nextToken(); // real |
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String free = tok.nextToken(", "); // "2380M" |
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// System.out.println("free: "+free); |
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tok.nextToken(); // free |
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String swapInUse = tok.nextToken(); // "1237M" |
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// System.out.println("swapInUse: "+swapInUse); |
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tok.nextToken(); // swap |
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tok.nextToken(); // in |
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tok.nextToken(); // use |
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String swapFree = tok.nextToken(", "); // "9774M" |
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// System.out.println("swapFree: "+swapFree); |
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|
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// done now make it into an xml packet ;) |
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|
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packet = new XMLFormatter(); |
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packet.addElement("sTime",sTime); |
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packet.addNest("load"); |
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packet.addElement("load1",load1); |
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packet.addElement("load5",load5); |
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packet.addElement("load15",load15); |
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packet.closeNest(); |
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packet.addNest("processes"); |
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packet.addElement("total",totalProcesses); |
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packet.addElement("sleeping",sleeping); |
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packet.addElement("zombie",zombie); |
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packet.addElement("stopped",stopped); |
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packet.closeNest(); |
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packet.addNest("cpu"); |
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packet.addElement("idle",idle.trim()); |
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packet.addElement("user",user.trim()); |
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packet.addElement("kernel",kernel.trim()); |
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packet.addElement("iowait",iowait.trim()); |
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packet.addElement("swap",swap.trim()); |
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packet.closeNest(); |
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packet.addNest("memory"); |
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packet.addElement("total",real.substring(0, real.length()-1)); |
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packet.addElement("free",free.substring(0, free.length()-1)); |
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packet.closeNest(); |
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packet.addNest("swap"); |
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packet.addElement("inuse",swapInUse.substring(0, swapInUse.length()-1)); |
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packet.addElement("free",swapFree.substring(0, swapFree.length()-1)); |
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packet.closeNest(); |
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|
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in.close(); |
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} |
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catch (Exception e ){ |
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// probably couldn't find the file |
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System.out.println(e); |
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} |
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|
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|
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} |
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|
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public String getItems(){ |
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// return the xml |
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return packet.returnXML(); |
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} |
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|
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|
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} // class |
