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: ajm4 $
 * @version $Id: Services__Monitor.java,v 1.1 2001/03/09 03:33:23 ajm4 Exp $
 */
public class Services__Monitor extends MonitorSkeleton {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.1 $";
    
    public final String DESC = "Monitors a hosts services.";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

//---PUBLIC METHODS---

    public void analysePacket(XMLPacket packet) {
        if (packet.getParam("packet.attributes.type").equals("heartbeat")) {
            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---

//---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:	1.2
Committed:	Wed Mar 14 23:25:29 2001 UTC (23 years, 2 months ago) by tdb
Branch:	MAIN
Changes since 1.1:	+7 -7 lines
Log Message:	The whole server package structure has been changed. Old Package: uk.ac.ukc.iscream.* New Package: uk.org.iscream.*
#	Content
1	//---PACKAGE DECLARATION---
2	package uk.org.iscream.client.monitors;
3
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	import uk.org.iscream.client.*;
11	import uk.org.iscream.core.*;
12	import uk.org.iscream.util.*;
13	import uk.org.iscream.componentmanager.*;
14
15	/**
16	* This Monitor watches the Service checks on hosts
17	*
18	* @author $Author: ajm4 $
19	* @version $Id: Services__Monitor.java,v 1.1 2001/03/09 03:33:23 ajm4 Exp $
20	*/
21	public class Services__Monitor extends MonitorSkeleton {
22
23	//---FINAL ATTRIBUTES---
24
25	/**
26	* The current CVS revision of this class
27	*/
28	public final String REVISION = "$Revision: 1.1 $";
29
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	if (packet.getParam("packet.attributes.type").equals("heartbeat")) {
40	String source = packet.getParam("packet.attributes.machine_name");
41	if (!_hosts.containsKey(source)) {
42	_hosts.put(source, new HashMap());
43	}
44
45	HashMap serviceRegisters = (HashMap) _hosts.get(source);
46
47	// a tempory holder for all the disk attributes we find
48	ArrayList services = new ArrayList();
49
50	// unfortunatly we need to check the whole packet
51	// to find the disks, and then get the data attributes
52	Set packetSet = packet.getSet();
53	Iterator i = packetSet.iterator();
54	while (i.hasNext()) {
55	String dataKey = (String) i.next();
56	if(dataKey.startsWith("packet.services.")) {
57	if(!services.contains(dataKey)) {
58	String serviceType = "";
59
60	// pos is after "packet.services."
61	int pos = 16;
62	while (dataKey.charAt(pos) != '.') {
63	serviceType = serviceType + dataKey.charAt(pos);
64	pos++;
65	}
66
67	// add the service to our list, with the packet data
68	services.add("packet.services." + serviceType + ".attributes.status");
69	String status = packet.getParam("packet.services." + serviceType + ".attributes.status");
70
71	services.add("packet.services." + serviceType + ".attributes.message");
72	String message = packet.getParam("packet.services." + serviceType + ".attributes.message");
73
74	// * now process this service *
75
76	// check if we've seen this service before on a previous run
77	// if not, we need to create a register for it
78	if(!serviceRegisters.containsKey(serviceType)) {
79	serviceRegisters.put(serviceType, new Register(source, _name));
80	}
81
82	// get the register for this service
83	Register reg = (Register) serviceRegisters.get(serviceType);
84
85
86	// as we don't really have a threshold for services,
87	// a temporary fix is to use the status value as a threshold.
88	// after all, a 0 status is a NORMAL threshold ;)
89	int newThreshold = 0;
90	try {
91	newThreshold = Integer.parseInt(status);
92	} catch (NumberFormatException e) {
93	_logger.write(this.toString(), Logger.WARNING, "Received heartbeat from "+source+" with bad service information: "+e);
94	// don't try to continue and go try the next service
95	break;
96	}
97
98	// say which service it was
99	String attributeName = serviceType + " service";
100	String displayValue = "";
101	if (newThreshold == 0) {
102	displayValue = "RUNNING";
103	} else {
104	displayValue = "FAILED";
105	}
106
107	processAlert(newThreshold, attributeName, reg, source, displayValue);
108	}
109	}
110	}
111	}
112	}
113
114	/**
115	* Overrides the {@link java.lang.Object#toString() Object.toString()}
116	* method to provide clean logging (every class should have this).
117	*
118	* This uses the uk.org.iscream.util.NameFormat class
119	* to format the toString()
120	*
121	* @return the name of this class and its CVS revision
122	*/
123	public String toString() {
124	return FormatName.getName(
125	_name,
126	getClass().getName(),
127	REVISION);
128	}
129
130	/**
131	* return the String representation of what the monitor does
132	*/
133	public String getDescription(){
134	return DESC;
135	}
136
137	//---PRIVATE METHODS---
138
139	//---ACCESSOR/MUTATOR METHODS---
140
141	//---ATTRIBUTES---
142
143	/**
144	* This is the friendly identifier of the
145	* component this class is running in.
146	* eg, a Filter may be called "filter1",
147	* If this class does not have an owning
148	* component, a name from the configuration
149	* can be placed here. This name could also
150	* be changed to null for utility classes.
151	*/
152	private String _name = "Services";
153
154	/**
155	* A reference to the configuration proxy in use
156	*/
157	private ConfigurationProxy _cp = ConfigurationProxy.getInstance();
158
159	private HashMap _hosts = new HashMap();
160
161	//---STATIC ATTRIBUTES---
162
163	}