server/client/MonitorSkeleton.java

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

//---IMPORTS---
import java.util.HashMap;
import uk.org.iscream.client.*;
import uk.org.iscream.core.*;
import uk.org.iscream.util.*;
import uk.org.iscream.componentmanager.*;

/**
 * Skeleton class for Monitors
 *
 * @author  $Author: ajm4 $
 * @version $Id: MonitorSkeleton.java,v 1.4 2001/03/09 03:57:01 ajm4 Exp $
 */
public abstract class MonitorSkeleton implements PluginMonitor {

//---FINAL ATTRIBUTES---
    
//---STATIC METHODS---

//---CONSTRUCTORS---

//---PUBLIC METHODS---

    public abstract void analysePacket(XMLPacket packet);

    public void processAlert(int newThreshold, String attributeName, Register reg, String source, String currentValue) {
        // decide what threshold level we're on, if we've changed, record that
        if (newThreshold != reg.getLastThresholdLevel()) {
            reg.setLastThresholdLevel(newThreshold);
        }
        // as long as this isn't a normal level
        if(reg.getLastThresholdLevel() != Alert.thresholdNORMAL) {
            // if the time since the last alert is more than the time for
            // its timeout, fire an alert, escalate the alert
            long timeout = reg.getLastAlertTimeout();
            if ((timeout > 0) && (reg.getTimeLastSent() > 0)) {
                if((System.currentTimeMillis() - reg.getTimeLastSent()) > timeout) {
                    int lastAlert = reg.getLastAlertLevel();
                    reg.escalateAlert();
                    reg.setTimeLastSent( System.currentTimeMillis());
                    reg.setLastAlertTimeout(reg.getAlertTimeout(reg.getLastAlertLevel()));
                    fireAlert(reg, lastAlert, source, currentValue, attributeName);
                }
            // if we don't have a timeout configured...we got STRAIGHT to the next level
            } else {
                int lastAlert = reg.getLastAlertLevel();
                reg.escalateAlert();
                reg.setTimeLastSent( System.currentTimeMillis());
                reg.setLastAlertTimeout(reg.getAlertTimeout(reg.getLastAlertLevel()));
                fireAlert(reg, lastAlert, source, currentValue, attributeName);
            }
                
        // we must be on ok, check the timeout value for this
        } else {
            // if we were on an OK alert before, then we don't do anything
            // but if we weren't we only set OK, once the timout of the last 
            // alert has occourd
            if (reg.getLastAlertLevel() != Alert.alertOK) {
                long timeout = reg.getLastAlertTimeout();
                if ((timeout > 0) && (reg.getTimeLastSent() > 0)) {
                    if ((System.currentTimeMillis() - reg.getTimeLastSent()) > timeout) {
                        int lastAlert = reg.getLastAlertLevel();
                        reg.setLastAlertLevel(Alert.alertOK);
                        reg.setTimeLastSent(System.currentTimeMillis());
                        reg.setLastAlertTimeout(timeout);
                        fireAlert(reg, lastAlert,  source, currentValue, attributeName);
                    }
                }
            }
        }
    }

    /**
     * return the String representation of what the monitor does
     */
    public abstract String getDescription();


//---PRIVATE METHODS---

    protected void fireAlert(Register reg, int lastAlert, String source, String currentValue, String attributeName) {
        int alertLevel = reg.getLastAlertLevel();
        int thresholdLevel = reg.getLastThresholdLevel();
        String thresholdValue = String.valueOf(reg.getThreshold(thresholdLevel));
        String timeout = String.valueOf(reg.getAlertTimeout(reg.getLastAlertLevel()) / 1000);
        // ensures we display a nice thing if its -1.0
        if (thresholdLevel == -1.0) {
            thresholdValue = "-";
        }
        if (alertLevel == Alert.alertOK) {
            timeout = "0";
        }
        Alert alert = new Alert(alertLevel, lastAlert, thresholdLevel, source, thresholdValue, currentValue, attributeName, timeout, reg.getInitialAlertTime());
        _alerterQueue.add(alert);
        _logger.write(toString(), Logger.DEBUG, "Fired alert for source:" + source + " at alert level:" + Alert.alertLevels[alertLevel] + " on:" + attributeName + " for threshold level:" + Alert.thresholdLevels[thresholdLevel] + " at:" +  currentValue + " exceeding threshold of:" +thresholdValue + " next alert sent in:" + timeout + "secs");
    }

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

//---ATTRIBUTES---

    protected Logger _logger = ReferenceManager.getInstance().getLogger();

    protected Queue _alerterQueue = ClientMain._alerterQueue;

//---STATIC ATTRIBUTES---

}
Revision:	1.5
Committed:	Wed Mar 14 23:25:29 2001 UTC (23 years, 2 months ago) by tdb
Branch:	MAIN
Changes since 1.4:	+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;
3
4	//---IMPORTS---
5	import java.util.HashMap;
6	import uk.org.iscream.client.*;
7	import uk.org.iscream.core.*;
8	import uk.org.iscream.util.*;
9	import uk.org.iscream.componentmanager.*;
10
11	/**
12	* Skeleton class for Monitors
13	*
14	* @author $Author: ajm4 $
15	* @version $Id: MonitorSkeleton.java,v 1.4 2001/03/09 03:57:01 ajm4 Exp $
16	*/
17	public abstract class MonitorSkeleton implements PluginMonitor {
18
19	//---FINAL ATTRIBUTES---
20
21	//---STATIC METHODS---
22
23	//---CONSTRUCTORS---
24
25	//---PUBLIC METHODS---
26
27	public abstract void analysePacket(XMLPacket packet);
28
29	public void processAlert(int newThreshold, String attributeName, Register reg, String source, String currentValue) {
30	// decide what threshold level we're on, if we've changed, record that
31	if (newThreshold != reg.getLastThresholdLevel()) {
32	reg.setLastThresholdLevel(newThreshold);
33	}
34	// as long as this isn't a normal level
35	if(reg.getLastThresholdLevel() != Alert.thresholdNORMAL) {
36	// if the time since the last alert is more than the time for
37	// its timeout, fire an alert, escalate the alert
38	long timeout = reg.getLastAlertTimeout();
39	if ((timeout > 0) && (reg.getTimeLastSent() > 0)) {
40	if((System.currentTimeMillis() - reg.getTimeLastSent()) > timeout) {
41	int lastAlert = reg.getLastAlertLevel();
42	reg.escalateAlert();
43	reg.setTimeLastSent( System.currentTimeMillis());
44	reg.setLastAlertTimeout(reg.getAlertTimeout(reg.getLastAlertLevel()));
45	fireAlert(reg, lastAlert, source, currentValue, attributeName);
46	}
47	// if we don't have a timeout configured...we got STRAIGHT to the next level
48	} else {
49	int lastAlert = reg.getLastAlertLevel();
50	reg.escalateAlert();
51	reg.setTimeLastSent( System.currentTimeMillis());
52	reg.setLastAlertTimeout(reg.getAlertTimeout(reg.getLastAlertLevel()));
53	fireAlert(reg, lastAlert, source, currentValue, attributeName);
54	}
55
56	// we must be on ok, check the timeout value for this
57	} else {
58	// if we were on an OK alert before, then we don't do anything
59	// but if we weren't we only set OK, once the timout of the last
60	// alert has occourd
61	if (reg.getLastAlertLevel() != Alert.alertOK) {
62	long timeout = reg.getLastAlertTimeout();
63	if ((timeout > 0) && (reg.getTimeLastSent() > 0)) {
64	if ((System.currentTimeMillis() - reg.getTimeLastSent()) > timeout) {
65	int lastAlert = reg.getLastAlertLevel();
66	reg.setLastAlertLevel(Alert.alertOK);
67	reg.setTimeLastSent(System.currentTimeMillis());
68	reg.setLastAlertTimeout(timeout);
69	fireAlert(reg, lastAlert, source, currentValue, attributeName);
70	}
71	}
72	}
73	}
74	}
75
76	/**
77	* return the String representation of what the monitor does
78	*/
79	public abstract String getDescription();
80
81
82	//---PRIVATE METHODS---
83
84	protected void fireAlert(Register reg, int lastAlert, String source, String currentValue, String attributeName) {
85	int alertLevel = reg.getLastAlertLevel();
86	int thresholdLevel = reg.getLastThresholdLevel();
87	String thresholdValue = String.valueOf(reg.getThreshold(thresholdLevel));
88	String timeout = String.valueOf(reg.getAlertTimeout(reg.getLastAlertLevel()) / 1000);
89	// ensures we display a nice thing if its -1.0
90	if (thresholdLevel == -1.0) {
91	thresholdValue = "-";
92	}
93	if (alertLevel == Alert.alertOK) {
94	timeout = "0";
95	}
96	Alert alert = new Alert(alertLevel, lastAlert, thresholdLevel, source, thresholdValue, currentValue, attributeName, timeout, reg.getInitialAlertTime());
97	_alerterQueue.add(alert);
98	_logger.write(toString(), Logger.DEBUG, "Fired alert for source:" + source + " at alert level:" + Alert.alertLevels[alertLevel] + " on:" + attributeName + " for threshold level:" + Alert.thresholdLevels[thresholdLevel] + " at:" + currentValue + " exceeding threshold of:" +thresholdValue + " next alert sent in:" + timeout + "secs");
99	}
100
101	//---ACCESSOR/MUTATOR METHODS---
102
103	//---ATTRIBUTES---
104
105	protected Logger _logger = ReferenceManager.getInstance().getLogger();
106
107	protected Queue _alerterQueue = ClientMain._alerterQueue;
108
109	//---STATIC ATTRIBUTES---
110
111	}