| 1 |
+ |
/* |
| 2 |
+ |
* i-scream central monitoring system |
| 3 |
+ |
* http://www.i-scream.org.uk |
| 4 |
+ |
* Copyright (C) 2000-2002 i-scream |
| 5 |
+ |
* |
| 6 |
+ |
* This program is free software; you can redistribute it and/or |
| 7 |
+ |
* modify it under the terms of the GNU General Public License |
| 8 |
+ |
* as published by the Free Software Foundation; either version 2 |
| 9 |
+ |
* of the License, or (at your option) any later version. |
| 10 |
+ |
* |
| 11 |
+ |
* This program is distributed in the hope that it will be useful, |
| 12 |
+ |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
+ |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
+ |
* GNU General Public License for more details. |
| 15 |
+ |
* |
| 16 |
+ |
* You should have received a copy of the GNU General Public License |
| 17 |
+ |
* along with this program; if not, write to the Free Software |
| 18 |
+ |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 |
+ |
*/ |
| 20 |
+ |
|
| 21 |
|
//---PACKAGE DECLARATION--- |
| 22 |
|
package uk.org.iscream.cms.server.client.monitors; |
| 23 |
|
|
| 26 |
|
import java.text.NumberFormat; |
| 27 |
|
import uk.org.iscream.cms.server.client.*; |
| 28 |
|
import uk.org.iscream.cms.server.core.*; |
| 29 |
< |
import uk.org.iscream.cms.server.util.*; |
| 29 |
> |
import uk.org.iscream.cms.util.*; |
| 30 |
|
import uk.org.iscream.cms.server.componentmanager.*; |
| 31 |
|
|
| 32 |
|
/** |
| 70 |
|
Register reg = (Register) _hosts.get(source); |
| 71 |
|
|
| 72 |
|
// get the packet data |
| 73 |
< |
double memoryTotal, memoryFree; |
| 73 |
> |
double memoryTotal, memoryFree, memoryCache; |
| 74 |
|
try { |
| 75 |
|
String total = packet.getParam("packet.memory.total"); |
| 76 |
|
String free = packet.getParam("packet.memory.free"); |
| 77 |
|
if(total==null || free==null) { |
| 78 |
< |
throw new NumberFormatException("Memory data invalid"); |
| 78 |
> |
throw new NumberFormatException("Memory data invalid or not supplied"); |
| 79 |
|
} |
| 80 |
|
memoryTotal = Double.parseDouble(total); |
| 81 |
|
memoryFree = Double.parseDouble(free); |
| 82 |
+ |
// get hold of the cache data.. default to 0 |
| 83 |
+ |
memoryCache = 0.0; |
| 84 |
+ |
String cache = packet.getParam("packet.memory.cache"); |
| 85 |
+ |
if(cache != null) { |
| 86 |
+ |
memoryCache = Double.parseDouble(cache); |
| 87 |
+ |
} |
| 88 |
|
} catch (NumberFormatException e) { |
| 89 |
|
_logger.write(this.toString(), Logger.WARNING, "Received packet from "+source+" with bad memory information: "+e); |
| 90 |
|
// don't try to continue and process |
| 96 |
|
String option = _cp.getProperty("Host." + source, "Monitor." + _name + ".thresholdMeasure"); |
| 97 |
|
if (option.equals("VALUE")) { |
| 98 |
|
useValue = true; |
| 99 |
< |
} |
| 99 |
> |
} |
| 100 |
|
} catch (PropertyNotFoundException e) { |
| 101 |
|
// we default to percentage |
| 102 |
|
} |
| 103 |
< |
|
| 103 |
> |
|
| 104 |
> |
boolean useCache = false; |
| 105 |
> |
try { |
| 106 |
> |
int useCacheAsFree = Integer.parseInt(_cp.getProperty("Host." + source, "Monitor." + _name + ".useCacheAsFree")); |
| 107 |
> |
useCache = (useCacheAsFree == 1); |
| 108 |
> |
} catch (PropertyNotFoundException e) { |
| 109 |
> |
// we default to false |
| 110 |
> |
} catch (NumberFormatException e) { |
| 111 |
> |
// we default to false |
| 112 |
> |
} |
| 113 |
> |
|
| 114 |
|
// this bit determines if the memory check is a % check |
| 115 |
|
// or a kb check |
| 116 |
|
String type; |
| 118 |
|
int newThreshold; |
| 119 |
|
if(useValue) { |
| 120 |
|
// kb memory available |
| 121 |
< |
curValue = memoryFree; |
| 121 |
> |
if(useCache) { |
| 122 |
> |
// NOTE: we take cache as being "probably free" for this check |
| 123 |
> |
curValue = memoryFree + memoryCache; |
| 124 |
> |
} else { |
| 125 |
> |
curValue = memoryFree; |
| 126 |
> |
} |
| 127 |
|
// negate check |
| 128 |
|
newThreshold = checkAttributeThreshold(curValue, reg, true); |
| 129 |
|
type = "kb"; |
| 130 |
|
} else { |
| 131 |
|
// % memory in use |
| 132 |
< |
curValue = (1 - (memoryFree / memoryTotal)) * 100; |
| 132 |
> |
if(useCache) { |
| 133 |
> |
// NOTE: we take cache as being "probably free" for this check |
| 134 |
> |
curValue = (1 - ((memoryFree + memoryCache) / memoryTotal)) * 100; |
| 135 |
> |
} else { |
| 136 |
> |
curValue = (1 - (memoryFree / memoryTotal)) * 100; |
| 137 |
> |
} |
| 138 |
|
// normal check |
| 139 |
|
newThreshold = checkAttributeThreshold(curValue, reg, false); |
| 140 |
|
type = "%"; |
| 147 |
|
String strCurValue = nf.format(curValue); |
| 148 |
|
|
| 149 |
|
// set the attributeName nicely |
| 150 |
< |
String attributeName = "Memory in use " + type; |
| 150 |
> |
String attributeName = type + " Memory in use"; |
| 151 |
> |
if(useCache) { |
| 152 |
> |
attributeName += " (ex. cache)"; |
| 153 |
> |
} |
| 154 |
|
|
| 155 |
|
processAlert(newThreshold, attributeName, reg, source, strCurValue); |
| 156 |
|
} |
| 159 |
|
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
| 160 |
|
* method to provide clean logging (every class should have this). |
| 161 |
|
* |
| 162 |
< |
* This uses the uk.org.iscream.cms.server.util.NameFormat class |
| 162 |
> |
* This uses the uk.org.iscream.cms.util.NameFormat class |
| 163 |
|
* to format the toString() |
| 164 |
|
* |
| 165 |
|
* @return the name of this class and its CVS revision |
