host/java/DecodeCPU_TXT.java

import java.io.*;
import java.util.*;

class DecodeCPU_TXT {

        XMLFormatter packet;

        public DecodeCPU_TXT(){

                // open the file and read in all the relevant details
                try {
            String[] cmd = {"/usr/local/sbin/top","-s1","-d2","0"};
                Process proc = Runtime.getRuntime().exec(cmd); 
                // this process will take atleast 2 seconds to complete
                BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));

            String line = new String();

                        // get rid of the first output (it doesn't contain cpu info)
                        for ( int i=0; i < 7; i++ ){
                                line = in.readLine();
                                //System.out.println("Throwing away line: "+line);
                        }
                        // first line has the format: load averages:  0.30,  0.27,  0.29    16:58:10
                        // tokenize it using spaces as delimiters?
                        line = in.readLine();
                            System.out.println("line1: "+line);
                        StringTokenizer tok = new StringTokenizer(line,":",false);
                        tok.nextToken(); // load averages
                        tok.nextToken("  ,"); // :
                        String load1 = tok.nextToken(); // "0.30"
                            System.out.println("load1: "+load1);
                        String load5 = tok.nextToken(); // "0.27"
                            System.out.println("load5: "+load5);
                        String load15 = tok.nextToken(); // "0.29"
                            System.out.println("load15: "+load15);
                        String sTime = tok.nextToken(); // "16:58:10"
                            System.out.println("sTime: "+sTime);
                        
                        // get the next line
                        line = in.readLine(); // 632 processes: 591 sleeping, 10 zombie, 30 stopped, 1 on cpu
                            System.out.println("line2: "+line);
                        tok = new StringTokenizer(line," ",false);
                        String totalProcesses = tok.nextToken(); // "632"
                            System.out.println("totalProcesses: "+totalProcesses);
                        tok.nextToken(); // processes
                        String sleeping = tok.nextToken(": ,"); // "591"        
                            System.out.println("sleeping: "+sleeping);
                        tok.nextToken(); // sleeping
                        String zombie = tok.nextToken(); // "10"
                            System.out.println("zombie: "+zombie);
                        tok.nextToken(); // zombie
                        String stopped = tok.nextToken(); // "30"
                            System.out.println("stopped: "+stopped);
                        tok.nextToken(); // stopped
                        String onCPU = tok.nextToken(); // "1"
                            System.out.println("onCPU: "+onCPU);
                        
                        // get the next line
                        line = in.readLine(); // CPU states: 71.1% idle,  1.8% user,  4.8% kernel, 22.2% iowait,  0.0% swap
                            System.out.println("line3: "+line);
                        tok = new StringTokenizer(line,":%,",false);
                        tok.nextToken(); // CPU states
                        String idle = tok.nextToken(); // "71.1"
                            System.out.println("idle: "+idle);
                        tok.nextToken(); // idle
                        String user = tok.nextToken(",%"); // "  1.8"
                            System.out.println("user: "+user);
                        tok.nextToken(); // user
                        String kernel = tok.nextToken(); // "  4.8"
                            System.out.println("kernel: "+kernel);
                        tok.nextToken(); // kernel
                        String iowait = tok.nextToken(); // " 22.2"
                            System.out.println("iowait: "+iowait);
                        tok.nextToken(); // iowait
                        String swap = tok.nextToken(); // "  0.0"
                            System.out.println("swap: "+swap);
                        
                        line = in.readLine(); // Memory: 4096M real, 2380M free, 1237M swap in use, 9774M swap free
                            System.out.println("line4: "+line);
                        tok = new StringTokenizer(line,": ,",false);
                        tok.nextToken(); // Memory:
                        String real = tok.nextToken(); // "4096M"
                            System.out.println("real: "+real);
                        tok.nextToken(); // real
                        String free = tok.nextToken(", "); // "2380M"
                            System.out.println("free: "+free);
                        tok.nextToken(); // free
                        String swapInUse = tok.nextToken(); // "1237M"
                            System.out.println("swapInUse: "+swapInUse);
                        tok.nextToken(); // swap
                        tok.nextToken(); // in
                        tok.nextToken(); // use
                        String swapFree = tok.nextToken(", "); // "9774M"
                            System.out.println("swapFree: "+swapFree);
                        
                        // done now make it into an xml packet ;)
                      
                        packet = new XMLFormatter();
                        packet.addNest("load");
                                packet.addElement("load1",load1);
                                packet.addElement("load5",load5);
                                packet.addElement("load15",load15);
                        packet.closeNest();     
                        packet.addNest("processes");
                                packet.addElement("total",totalProcesses);
                                packet.addElement("sleeping",sleeping);
                                packet.addElement("zombie",zombie);
                                packet.addElement("stopped",stopped);
                        packet.closeNest();
                        packet.addNest("cpu");
                                packet.addElement("idle",idle.trim());
                                packet.addElement("user",user.trim());
                                packet.addElement("kernel",kernel.trim());
                                packet.addElement("iowait",iowait.trim());
                                packet.addElement("swap",swap.trim());
                        packet.closeNest();
                        packet.addNest("memory");
                                packet.addElement("real",real);
                                packet.addElement("free",free);
                                packet.addElement("swapinuse",swapInUse);
                                packet.addElement("swapfree",swapFree);
                        packet.closeNest();
                        
                        in.close();
                }
                catch (Exception e ){
                    // probably couldn't find the file  
                    System.out.println(e);
                }
        
                
        }

        public String getItems(){
                // return the xml
                return packet.returnXML();
        }
        

} // class
Revision:	1.2
Committed:	Thu Dec 7 23:19:49 2000 UTC (23 years, 9 months ago) by tdb
Branch:	MAIN
Changes since 1.1:	+66 -22 lines
Log Message:	Quite a bit of change to the grabbing of lines. Also, moved the reading of data to here, which saves using a file.
#	User	Rev	Content
1	ab11	1.1	import java.io.*;
2			import java.util.*;
3
4			class DecodeCPU_TXT {
5
6			XMLFormatter packet;
7
8	tdb	1.2	public DecodeCPU_TXT(){
9	ab11	1.1
10			// open the file and read in all the relevant details
11			try {
12	tdb	1.2	String[] cmd = {"/usr/local/sbin/top","-s1","-d2","0"};
13			Process proc = Runtime.getRuntime().exec(cmd);
14			// this process will take atleast 2 seconds to complete
15			BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));
16
17			String line = new String();
18	ab11	1.1
19			// get rid of the first output (it doesn't contain cpu info)
20			for ( int i=0; i < 7; i++ ){
21			line = in.readLine();
22	tdb	1.2	//System.out.println("Throwing away line: "+line);
23	ab11	1.1	}
24			// first line has the format: load averages: 0.30, 0.27, 0.29 16:58:10
25			// tokenize it using spaces as delimiters?
26	tdb	1.2	line = in.readLine();
27			System.out.println("line1: "+line);
28	ab11	1.1	StringTokenizer tok = new StringTokenizer(line,":",false);
29	tdb	1.2	tok.nextToken(); // load averages
30			tok.nextToken(" ,"); // :
31			String load1 = tok.nextToken(); // "0.30"
32			System.out.println("load1: "+load1);
33			String load5 = tok.nextToken(); // "0.27"
34			System.out.println("load5: "+load5);
35			String load15 = tok.nextToken(); // "0.29"
36			System.out.println("load15: "+load15);
37	ab11	1.1	String sTime = tok.nextToken(); // "16:58:10"
38	tdb	1.2	System.out.println("sTime: "+sTime);
39	ab11	1.1
40			// get the next line
41			line = in.readLine(); // 632 processes: 591 sleeping, 10 zombie, 30 stopped, 1 on cpu
42	tdb	1.2	System.out.println("line2: "+line);
43	ab11	1.1	tok = new StringTokenizer(line," ",false);
44			String totalProcesses = tok.nextToken(); // "632"
45	tdb	1.2	System.out.println("totalProcesses: "+totalProcesses);
46			tok.nextToken(); // processes
47	ab11	1.1	String sleeping = tok.nextToken(": ,"); // "591"
48	tdb	1.2	System.out.println("sleeping: "+sleeping);
49			tok.nextToken(); // sleeping
50	ab11	1.1	String zombie = tok.nextToken(); // "10"
51	tdb	1.2	System.out.println("zombie: "+zombie);
52			tok.nextToken(); // zombie
53			String stopped = tok.nextToken(); // "30"
54			System.out.println("stopped: "+stopped);
55			tok.nextToken(); // stopped
56			String onCPU = tok.nextToken(); // "1"
57			System.out.println("onCPU: "+onCPU);
58	ab11	1.1
59			// get the next line
60			line = in.readLine(); // CPU states: 71.1% idle, 1.8% user, 4.8% kernel, 22.2% iowait, 0.0% swap
61	tdb	1.2	System.out.println("line3: "+line);
62	ab11	1.1	tok = new StringTokenizer(line,":%,",false);
63	tdb	1.2	tok.nextToken(); // CPU states
64	ab11	1.1	String idle = tok.nextToken(); // "71.1"
65	tdb	1.2	System.out.println("idle: "+idle);
66			tok.nextToken(); // idle
67	ab11	1.1	String user = tok.nextToken(",%"); // " 1.8"
68	tdb	1.2	System.out.println("user: "+user);
69			tok.nextToken(); // user
70	ab11	1.1	String kernel = tok.nextToken(); // " 4.8"
71	tdb	1.2	System.out.println("kernel: "+kernel);
72			tok.nextToken(); // kernel
73	ab11	1.1	String iowait = tok.nextToken(); // " 22.2"
74	tdb	1.2	System.out.println("iowait: "+iowait);
75			tok.nextToken(); // iowait
76	ab11	1.1	String swap = tok.nextToken(); // " 0.0"
77	tdb	1.2	System.out.println("swap: "+swap);
78	ab11	1.1
79			line = in.readLine(); // Memory: 4096M real, 2380M free, 1237M swap in use, 9774M swap free
80	tdb	1.2	System.out.println("line4: "+line);
81	ab11	1.1	tok = new StringTokenizer(line,": ,",false);
82			tok.nextToken(); // Memory:
83			String real = tok.nextToken(); // "4096M"
84	tdb	1.2	System.out.println("real: "+real);
85			tok.nextToken(); // real
86	ab11	1.1	String free = tok.nextToken(", "); // "2380M"
87	tdb	1.2	System.out.println("free: "+free);
88			tok.nextToken(); // free
89	ab11	1.1	String swapInUse = tok.nextToken(); // "1237M"
90	tdb	1.2	System.out.println("swapInUse: "+swapInUse);
91			tok.nextToken(); // swap
92			tok.nextToken(); // in
93			tok.nextToken(); // use
94	ab11	1.1	String swapFree = tok.nextToken(", "); // "9774M"
95	tdb	1.2	System.out.println("swapFree: "+swapFree);
96	ab11	1.1
97			// done now make it into an xml packet ;)
98	tdb	1.2
99			packet = new XMLFormatter();
100	ab11	1.1	packet.addNest("load");
101	tdb	1.2	packet.addElement("load1",load1);
102			packet.addElement("load5",load5);
103			packet.addElement("load15",load15);
104	ab11	1.1	packet.closeNest();
105			packet.addNest("processes");
106			packet.addElement("total",totalProcesses);
107			packet.addElement("sleeping",sleeping);
108			packet.addElement("zombie",zombie);
109			packet.addElement("stopped",stopped);
110			packet.closeNest();
111			packet.addNest("cpu");
112	tdb	1.2	packet.addElement("idle",idle.trim());
113			packet.addElement("user",user.trim());
114			packet.addElement("kernel",kernel.trim());
115			packet.addElement("iowait",iowait.trim());
116			packet.addElement("swap",swap.trim());
117	ab11	1.1	packet.closeNest();
118			packet.addNest("memory");
119			packet.addElement("real",real);
120			packet.addElement("free",free);
121			packet.addElement("swapinuse",swapInUse);
122			packet.addElement("swapfree",swapFree);
123			packet.closeNest();
124
125	tdb	1.2	in.close();
126	ab11	1.1	}
127	tdb	1.2	catch (Exception e ){
128			// probably couldn't find the file
129			System.out.println(e);
130	ab11	1.1	}
131
132
133			}
134
135			public String getItems(){
136			// return the xml
137			return packet.returnXML();
138			}
139
140
141			} // class