diff options
Diffstat (limited to 'plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/cache/HysteresisConditionPolicy.java')
| -rw-r--r-- | plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/cache/HysteresisConditionPolicy.java | 210 |
1 files changed, 105 insertions, 105 deletions
diff --git a/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/cache/HysteresisConditionPolicy.java b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/cache/HysteresisConditionPolicy.java index a341c9fe97..2f0769c6d2 100644 --- a/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/cache/HysteresisConditionPolicy.java +++ b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/cache/HysteresisConditionPolicy.java @@ -1,105 +1,105 @@ -/*
- * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Eike Stepper - initial API and implementation
- */
-package org.eclipse.net4j.util.cache;
-
-import org.eclipse.net4j.util.cache.ICacheMonitor.Condition;
-
-/**
- * @author Eike Stepper
- */
-public class HysteresisConditionPolicy extends ThresholdConditionPolicy
-{
- private long thresholdYellowRed;
-
- private long thresholdGreenYellow;
-
- public HysteresisConditionPolicy(long thresholdYellowRed, long thresholdRedYellow, long thresholdGreenYellow,
- long thresholdYellowGreen)
- {
- super(thresholdRedYellow, thresholdYellowGreen);
- if (thresholdYellowRed > thresholdRedYellow)
- {
- throw new IllegalArgumentException("thresholdYellowRed > thresholdRedYellow"); //$NON-NLS-1$
- }
-
- if (thresholdRedYellow > thresholdGreenYellow)
- {
- throw new IllegalArgumentException("thresholdRedYellow > thresholdGreenYellow"); //$NON-NLS-1$
- }
-
- if (thresholdGreenYellow > thresholdYellowGreen)
- {
- throw new IllegalArgumentException("thresholdGreenYellow > thresholdYellowGreen"); //$NON-NLS-1$
- }
-
- this.thresholdGreenYellow = thresholdGreenYellow;
- this.thresholdYellowRed = thresholdYellowRed;
- }
-
- public long getThresholdYellowRed()
- {
- return thresholdYellowRed;
- }
-
- public long getThresholdGreenYellow()
- {
- return thresholdGreenYellow;
- }
-
- @Override
- protected Condition getNewCondition(Condition oldCondition, long freeMemory)
- {
- switch (oldCondition)
- {
- case GREEN:
- if (freeMemory < thresholdYellowRed)
- {
- return Condition.RED;
- }
-
- if (freeMemory < thresholdGreenYellow)
- {
- return Condition.YELLOW;
- }
-
- return Condition.GREEN;
-
- case YELLOW:
- if (freeMemory < thresholdYellowRed)
- {
- return Condition.RED;
- }
-
- if (freeMemory > getThresholdYellowGreen())
- {
- return Condition.GREEN;
- }
-
- return Condition.YELLOW;
-
- case RED:
- if (freeMemory > getThresholdYellowGreen())
- {
- return Condition.GREEN;
- }
-
- if (freeMemory > getThresholdRedYellow())
- {
- return Condition.YELLOW;
- }
-
- return Condition.RED;
-
- default:
- throw new IllegalArgumentException("oldCondition == " + oldCondition); //$NON-NLS-1$
- }
- }
-}
+/* + * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * Eike Stepper - initial API and implementation + */ +package org.eclipse.net4j.util.cache; + +import org.eclipse.net4j.util.cache.ICacheMonitor.Condition; + +/** + * @author Eike Stepper + */ +public class HysteresisConditionPolicy extends ThresholdConditionPolicy +{ + private long thresholdYellowRed; + + private long thresholdGreenYellow; + + public HysteresisConditionPolicy(long thresholdYellowRed, long thresholdRedYellow, long thresholdGreenYellow, + long thresholdYellowGreen) + { + super(thresholdRedYellow, thresholdYellowGreen); + if (thresholdYellowRed > thresholdRedYellow) + { + throw new IllegalArgumentException("thresholdYellowRed > thresholdRedYellow"); //$NON-NLS-1$ + } + + if (thresholdRedYellow > thresholdGreenYellow) + { + throw new IllegalArgumentException("thresholdRedYellow > thresholdGreenYellow"); //$NON-NLS-1$ + } + + if (thresholdGreenYellow > thresholdYellowGreen) + { + throw new IllegalArgumentException("thresholdGreenYellow > thresholdYellowGreen"); //$NON-NLS-1$ + } + + this.thresholdGreenYellow = thresholdGreenYellow; + this.thresholdYellowRed = thresholdYellowRed; + } + + public long getThresholdYellowRed() + { + return thresholdYellowRed; + } + + public long getThresholdGreenYellow() + { + return thresholdGreenYellow; + } + + @Override + protected Condition getNewCondition(Condition oldCondition, long freeMemory) + { + switch (oldCondition) + { + case GREEN: + if (freeMemory < thresholdYellowRed) + { + return Condition.RED; + } + + if (freeMemory < thresholdGreenYellow) + { + return Condition.YELLOW; + } + + return Condition.GREEN; + + case YELLOW: + if (freeMemory < thresholdYellowRed) + { + return Condition.RED; + } + + if (freeMemory > getThresholdYellowGreen()) + { + return Condition.GREEN; + } + + return Condition.YELLOW; + + case RED: + if (freeMemory > getThresholdYellowGreen()) + { + return Condition.GREEN; + } + + if (freeMemory > getThresholdRedYellow()) + { + return Condition.YELLOW; + } + + return Condition.RED; + + default: + throw new IllegalArgumentException("oldCondition == " + oldCondition); //$NON-NLS-1$ + } + } +} |