shoestring/whatsupj.jar

## whatsupj.jar
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.hyperic.sigar.CpuPerc;
import org.hyperic.sigar.Mem;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.SigarException;
import org.hyperic.sigar.Who;

public class whatsupj {

        ublic static void main(String[] args) throws SigarException {

                // New instance of SIGAR to do our work and get stuff

                        Sigar sigar = new Sigar();

                                        // Output our collected information to an html file

                                        StringBuilder builder = new StringBuilder();

                                                builder.append("<!DOCTYPE html>");
                                                builder.append("<html lang=\"en\">");
                                                builder.append("<head><title>State of All Systems in Statistics</title></head>");
                                                builder.append("<body><h3>" + machineName(sigar) + "</h3>" + "<b>CPU Usage:</b>" + cleanCpuPerc(sigar) +
                                                                "<br>" + "<b>Memory Usage:</b> " + "Total: " + cleanMem(sigar) + "<br>" + who(sigar));
                                                builder.append("</body>");
                                                builder.append("</html>");

                                        String html = builder.toString();

                                                writeTofile(html);

        }

        public static void writeTofile(String str) {

                try {
                        Sigar sigar = new Sigar();
                        // Full path to /p/stat/drupal most likely needed for the .html file
                        FileWriter fstream = new FileWriter("/p/stat/drupal/systems_reports/" + machineName(sigar) + ".html");
                        BufferedWriter out = new BufferedWriter(fstream);

                        out.write(str);
                        out.close();
                }
                catch(Exception e) {
                        System.err.println("Error: " + e.getMessage());
                }
        }

        public static String machineName(Sigar sigar) throws SigarException {

                String hostName = new String();
                hostName = sigar.getFQDN();

                return hostName;
        }

        public static String cleanCpuPerc(Sigar sigar) throws SigarException {

                CpuPerc cpu = sigar.getCpuPerc();
                String cpu1 = cpu.toString();

                        // Remove unwanted information from the output of SIGAR, stripping it down to just the numbers
                        //cpu1 = cpu1.replaceAll("[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz:,]","");

                                // Remove the first 11 characters and then
                                // everything after the letter "t" in "system"from the                                // we want to style these headings ourselves via HTML/CSS. Theres probably a better way.
                                int length = cpu1.length();

                                        cpu1 = cpu1.substring(11, length);

                                int spaceIndex = cpu1.indexOf("t");

                                        cpu1 = cpu1.substring(0, spaceIndex);

                        return cpu1;

        }

        public static double cleanMem(Sigar sigar) throws SigarException {

                Mem             mem = sigar.getMem();
                String mem1 = mem.toString();

                int length = mem1.indexOf("K");

                        mem1 = mem1.substring(5, length);

                        // Convert mem1 result from K to GB
                        double kilobytes = Double.parseDouble(mem1);
                        double megabytes = (kilobytes / 1024);
                        double gigabytes = (megabytes / 1024);


                // For quick math testing to Eclipse console
                System.out.println("gigabytes : " + gigabytes);

                return gigabytes;

        }

        public static String loadAvg(Sigar sigar) throws SigarException {

                double[] loadAvg = sigar.getLoadAverage();

                // Convert loadAvg from an array to a string so that we can print it
                return Arrays.toString(loadAvg);

        }

        public static StringBuilder who(Sigar sigar) throws SigarException {

                Who[]   who = sigar.getWhoList();
                String str = new String();
                StringBuilder nameList = new StringBuilder();

                        for(int i = 0; i < who.length; i++)
                     {
                        int a = who[i].toString().indexOf("=");
                        int b = who[i].toString().indexOf(",");

                        str = who[i].toString().substring(a+1, b);
                        nameList.append(str + "<br>");
                     }

                return (nameList);

        }

}
	import java.io.BufferedWriter;
	import java.io.FileWriter;
	import java.lang.reflect.Array;
	import java.util.Arrays;
	import java.util.Map;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	import org.hyperic.sigar.CpuPerc;
	import org.hyperic.sigar.Mem;
	import org.hyperic.sigar.Sigar;
	import org.hyperic.sigar.SigarException;
	import org.hyperic.sigar.Who;

	public class whatsupj {

	ublic static void main(String[] args) throws SigarException {

	// New instance of SIGAR to do our work and get stuff

	Sigar sigar = new Sigar();

	// Output our collected information to an html file

	StringBuilder builder = new StringBuilder();

	builder.append("<!DOCTYPE html>");
	builder.append("<html lang=\"en\">");
	builder.append("<head><title>State of All Systems in Statistics</title></head>");
	builder.append("<body><h3>" + machineName(sigar) + "</h3>" + "<b>CPU Usage:</b>" + cleanCpuPerc(sigar) +
	"<br>" + "<b>Memory Usage:</b> " + "Total: " + cleanMem(sigar) + "<br>" + who(sigar));
	builder.append("</body>");
	builder.append("</html>");

	String html = builder.toString();

	writeTofile(html);

	}

	public static void writeTofile(String str) {

	try {
	Sigar sigar = new Sigar();
	// Full path to /p/stat/drupal most likely needed for the .html file
	FileWriter fstream = new FileWriter("/p/stat/drupal/systems_reports/" + machineName(sigar) + ".html");
	BufferedWriter out = new BufferedWriter(fstream);

	out.write(str);
	out.close();
	}
	catch(Exception e) {
	System.err.println("Error: " + e.getMessage());
	}
	}

	public static String machineName(Sigar sigar) throws SigarException {

	String hostName = new String();
	hostName = sigar.getFQDN();

	return hostName;
	}

	public static String cleanCpuPerc(Sigar sigar) throws SigarException {

	CpuPerc cpu = sigar.getCpuPerc();
	String cpu1 = cpu.toString();

	// Remove unwanted information from the output of SIGAR, stripping it down to just the numbers
	//cpu1 = cpu1.replaceAll("[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz:,]","");

	// Remove the first 11 characters and then
	// everything after the letter "t" in "system"from the // we want to style these headings ourselves via HTML/CSS. Theres probably a better way.
	int length = cpu1.length();

	cpu1 = cpu1.substring(11, length);

	int spaceIndex = cpu1.indexOf("t");

	cpu1 = cpu1.substring(0, spaceIndex);

	return cpu1;

	}

	public static double cleanMem(Sigar sigar) throws SigarException {

	Mem mem = sigar.getMem();
	String mem1 = mem.toString();

	int length = mem1.indexOf("K");

	mem1 = mem1.substring(5, length);

	// Convert mem1 result from K to GB
	double kilobytes = Double.parseDouble(mem1);
	double megabytes = (kilobytes / 1024);
	double gigabytes = (megabytes / 1024);


	// For quick math testing to Eclipse console
	System.out.println("gigabytes : " + gigabytes);

	return gigabytes;

	}

	public static String loadAvg(Sigar sigar) throws SigarException {

	double[] loadAvg = sigar.getLoadAverage();

	// Convert loadAvg from an array to a string so that we can print it
	return Arrays.toString(loadAvg);

	}

	public static StringBuilder who(Sigar sigar) throws SigarException {

	Who[] who = sigar.getWhoList();
	String str = new String();
	StringBuilder nameList = new StringBuilder();

	for(int i = 0; i < who.length; i++)
	{
	int a = who[i].toString().indexOf("=");
	int b = who[i].toString().indexOf(",");

	str = who[i].toString().substring(a+1, b);
	nameList.append(str + "<br>");
	}

	return (nameList);

	}

	}