client/monitors/Services__Monitor.java

//---PACKAGE DECLARATION---
package uk.org.iscream.client.monitors;

//---IMPORTS---
import java.util.HashMap;
import java.util.ArrayList;
import java.util.Set;
import java.util.Iterator;
import java.text.NumberFormat;
import uk.org.iscream.client.*;
import uk.org.iscream.core.*;
import uk.org.iscream.util.*;
import uk.org.iscream.componentmanager.*;

/**
 * This Monitor watches the Service checks on hosts
 *
 * @author  $Author: tdb1 $
 * @version $Id: Services__Monitor.java,v 1.2 2001/03/14 23:25:29 tdb1 Exp $
 */
public class Services__Monitor extends MonitorSkeleton {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.2 $";
    
    public final String DESC = "Monitors a hosts services.";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

//---PUBLIC METHODS---

    public void analysePacket(XMLPacket packet) {
        String source = packet.getParam("packet.attributes.machine_name");
        if (!_hosts.containsKey(source)) {
            _hosts.put(source, new HashMap());
        }

        HashMap serviceRegisters = (HashMap) _hosts.get(source);

        // a tempory holder for all the disk attributes we find
        ArrayList services = new ArrayList();

        // unfortunatly we need to check the whole packet
        // to find the disks, and then get the data attributes
        Set packetSet = packet.getSet();
        Iterator i = packetSet.iterator();
        while (i.hasNext()) {
            String dataKey = (String) i.next();
            if(dataKey.startsWith("packet.services.")) {
                if(!services.contains(dataKey)) {
                    String serviceType = "";

                    // pos is after "packet.services."
                    int pos = 16;
                    while (dataKey.charAt(pos) != '.') {
                        serviceType = serviceType + dataKey.charAt(pos);
                        pos++;
                    }

                     // add the service to our list, with the packet data                       
                    services.add("packet.services." + serviceType + ".attributes.status");
                    String status = packet.getParam("packet.services." + serviceType + ".attributes.status");

                    services.add("packet.services." + serviceType + ".attributes.message");
                    String message = packet.getParam("packet.services." + serviceType + ".attributes.message");

                    // *** now process this service ***

                    // check if we've seen this service before on a previous run
                    // if not, we need to create a register for it
                    if(!serviceRegisters.containsKey(serviceType)) {
                        serviceRegisters.put(serviceType, new Register(source, _name));
                    }

                    // get the register for this service
                    Register reg = (Register) serviceRegisters.get(serviceType);


                    // as we don't really have a threshold for services,
                    // a temporary fix is to use the status value as a threshold.
                    // after all, a 0 status is a NORMAL threshold ;)
                    int newThreshold = 0;
                    try {
                        newThreshold = Integer.parseInt(status);
                    } catch (NumberFormatException e) {
                        _logger.write(this.toString(), Logger.WARNING, "Received heartbeat from "+source+" with bad service information: "+e);
                        // don't try to continue and go try the next service
                        break;
                    }

                    // say which service it was
                    String attributeName = serviceType + " service";
                    String displayValue = "";
                    if (newThreshold == 0) {
                        displayValue = "RUNNING";
                    } else {
                        displayValue = "FAILED";
                    }

                    processAlert(newThreshold, attributeName, reg, source, displayValue);
                }
            }
        }
    }

    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * This uses the uk.org.iscream.util.NameFormat class
     * to format the toString()
     *
     * @return the name of this class and its CVS revision
     */
    public String toString() {
        return FormatName.getName(
            _name,
            getClass().getName(),
            REVISION);
    }

    /**
     * return the String representation of what the monitor does
     */
    public String getDescription(){
        return DESC;
    }

//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

    protected Queue getQueue() {
        return MonitorManager.getInstance().getHeartbeatQueue();
    }

//---ATTRIBUTES---

    /**
     * This is the friendly identifier of the
     * component this class is running in.
     * eg, a Filter may be called "filter1",
     * If this class does not have an owning
     * component,  a name from the configuration
     * can be placed here.  This name could also
     * be changed to null for utility classes.
     */
    private String _name = "Services";
    
    /**
     * A reference to the configuration proxy in use
     */
    private ConfigurationProxy _cp = ConfigurationProxy.getInstance();

    private HashMap _hosts = new HashMap();

//---STATIC ATTRIBUTES---

}
Revision:	1.3
Committed:	Thu Mar 22 17:57:06 2001 UTC (23 years, 2 months ago) by ajm
Branch:	MAIN
Changes since 1.2:	+74 -72 lines
Log Message:	Modified to use the new style queuing in the local client
#	User	Rev	Content
1	ajm	1.1	//---PACKAGE DECLARATION---
2	tdb	1.2	package uk.org.iscream.client.monitors;
3	ajm	1.1
4			//---IMPORTS---
5			import java.util.HashMap;
6			import java.util.ArrayList;
7			import java.util.Set;
8			import java.util.Iterator;
9			import java.text.NumberFormat;
10	tdb	1.2	import uk.org.iscream.client.*;
11			import uk.org.iscream.core.*;
12			import uk.org.iscream.util.*;
13			import uk.org.iscream.componentmanager.*;
14	ajm	1.1
15			/**
16			* This Monitor watches the Service checks on hosts
17			*
18	ajm	1.3	* @author $Author: tdb1 $
19			* @version $Id: Services__Monitor.java,v 1.2 2001/03/14 23:25:29 tdb1 Exp $
20	ajm	1.1	*/
21			public class Services__Monitor extends MonitorSkeleton {
22
23			//---FINAL ATTRIBUTES---
24
25			/**
26			* The current CVS revision of this class
27			*/
28	ajm	1.3	public final String REVISION = "$Revision: 1.2 $";
29	ajm	1.1
30			public final String DESC = "Monitors a hosts services.";
31
32			//---STATIC METHODS---
33
34			//---CONSTRUCTORS---
35
36			//---PUBLIC METHODS---
37
38			public void analysePacket(XMLPacket packet) {
39	ajm	1.3	String source = packet.getParam("packet.attributes.machine_name");
40			if (!_hosts.containsKey(source)) {
41			_hosts.put(source, new HashMap());
42			}
43
44			HashMap serviceRegisters = (HashMap) _hosts.get(source);
45
46			// a tempory holder for all the disk attributes we find
47			ArrayList services = new ArrayList();
48
49			// unfortunatly we need to check the whole packet
50			// to find the disks, and then get the data attributes
51			Set packetSet = packet.getSet();
52			Iterator i = packetSet.iterator();
53			while (i.hasNext()) {
54			String dataKey = (String) i.next();
55			if(dataKey.startsWith("packet.services.")) {
56			if(!services.contains(dataKey)) {
57			String serviceType = "";
58
59			// pos is after "packet.services."
60			int pos = 16;
61			while (dataKey.charAt(pos) != '.') {
62			serviceType = serviceType + dataKey.charAt(pos);
63			pos++;
64			}
65
66			// add the service to our list, with the packet data
67			services.add("packet.services." + serviceType + ".attributes.status");
68			String status = packet.getParam("packet.services." + serviceType + ".attributes.status");
69
70			services.add("packet.services." + serviceType + ".attributes.message");
71			String message = packet.getParam("packet.services." + serviceType + ".attributes.message");
72
73			// * now process this service *
74
75			// check if we've seen this service before on a previous run
76			// if not, we need to create a register for it
77			if(!serviceRegisters.containsKey(serviceType)) {
78			serviceRegisters.put(serviceType, new Register(source, _name));
79			}
80
81			// get the register for this service
82			Register reg = (Register) serviceRegisters.get(serviceType);
83
84
85			// as we don't really have a threshold for services,
86			// a temporary fix is to use the status value as a threshold.
87			// after all, a 0 status is a NORMAL threshold ;)
88			int newThreshold = 0;
89			try {
90			newThreshold = Integer.parseInt(status);
91			} catch (NumberFormatException e) {
92			_logger.write(this.toString(), Logger.WARNING, "Received heartbeat from "+source+" with bad service information: "+e);
93			// don't try to continue and go try the next service
94			break;
95			}
96
97			// say which service it was
98			String attributeName = serviceType + " service";
99			String displayValue = "";
100			if (newThreshold == 0) {
101			displayValue = "RUNNING";
102			} else {
103			displayValue = "FAILED";
104	ajm	1.1	}
105	ajm	1.3
106			processAlert(newThreshold, attributeName, reg, source, displayValue);
107	ajm	1.1	}
108			}
109			}
110			}
111
112			/**
113			* Overrides the {@link java.lang.Object#toString() Object.toString()}
114			* method to provide clean logging (every class should have this).
115			*
116	tdb	1.2	* This uses the uk.org.iscream.util.NameFormat class
117	ajm	1.1	* to format the toString()
118			*
119			* @return the name of this class and its CVS revision
120			*/
121			public String toString() {
122			return FormatName.getName(
123			_name,
124			getClass().getName(),
125			REVISION);
126			}
127
128			/**
129			* return the String representation of what the monitor does
130			*/
131			public String getDescription(){
132			return DESC;
133			}
134
135			//---PRIVATE METHODS---
136
137			//---ACCESSOR/MUTATOR METHODS---
138	ajm	1.3
139			protected Queue getQueue() {
140			return MonitorManager.getInstance().getHeartbeatQueue();
141			}
142	ajm	1.1
143			//---ATTRIBUTES---
144
145			/**
146			* This is the friendly identifier of the
147			* component this class is running in.
148			* eg, a Filter may be called "filter1",
149			* If this class does not have an owning
150			* component, a name from the configuration
151			* can be placed here. This name could also
152			* be changed to null for utility classes.
153			*/
154			private String _name = "Services";
155
156			/**
157			* A reference to the configuration proxy in use
158			*/
159			private ConfigurationProxy _cp = ConfigurationProxy.getInstance();
160
161			private HashMap _hosts = new HashMap();
162
163			//---STATIC ATTRIBUTES---
164
165			}