/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
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* CDDL HEADER END
*
*
* Copyright 2008 Sun Microsystems, Inc.
*/
package org.opends.server.admin;
import static org.opends.server.util.Validator.ensureNotNull;
import java.util.EnumSet;
/**
* Memory size property definition.
* <p>
* All memory size property values are represented in bytes using longs.
* <p>
* All values must be zero or positive and within the lower/upper limit
* constraints. Support is provided for "unlimited" memory sizes. These are
* represented using a negative memory size value or using the string
* "unlimited".
*/
public final class SizePropertyDefinition extends PropertyDefinition<Long> {
// String used to represent unlimited memory sizes.
private static final String UNLIMITED = "unlimited";
// The lower limit of the property value in bytes.
private final long lowerLimit;
// The optional upper limit of the property value in bytes.
private final Long upperLimit;
// Indicates whether this property allows the use of the "unlimited" memory
// size value (represented using a -1L or the string "unlimited").
private final boolean allowUnlimited;
/**
* An interface for incrementally constructing memory size property
* definitions.
*/
public static class Builder extends
AbstractBuilder<Long, SizePropertyDefinition> {
// The lower limit of the property value in bytes.
private long lowerLimit = 0L;
// The optional upper limit of the property value in bytes.
private Long upperLimit = null;
// Indicates whether this property allows the use of the "unlimited" memory
// size value (represented using a -1L or the string "unlimited").
private boolean allowUnlimited = false;
// Private constructor
private Builder(
AbstractManagedObjectDefinition<?, ?> d, String propertyName) {
super(d, propertyName);
}
/**
* Set the lower limit in bytes.
*
* @param lowerLimit
* The new lower limit (must be >= 0) in bytes.
* @throws IllegalArgumentException
* If a negative lower limit was specified, or if the lower limit
* is greater than the upper limit.
*/
public final void setLowerLimit(long lowerLimit)
throws IllegalArgumentException {
if (lowerLimit < 0) {
throw new IllegalArgumentException("Negative lower limit");
}
if (upperLimit != null && lowerLimit > upperLimit) {
throw new IllegalArgumentException(
"Lower limit greater than upper limit");
}
this.lowerLimit = lowerLimit;
}
/**
* Set the lower limit using a string representation of the limit.
*
* @param lowerLimit
* The string representation of the new lower limit.
* @throws IllegalArgumentException
* If the lower limit could not be parsed, or if a negative lower
* limit was specified, or the lower limit is greater than the
* upper limit.
*/
public final void setLowerLimit(String lowerLimit)
throws IllegalArgumentException {
setLowerLimit(SizeUnit.parseValue(lowerLimit, SizeUnit.BYTES));
}
/**
* Set the upper limit in bytes.
*
* @param upperLimit
* The new upper limit in bytes or <code>null</code> if there is
* no upper limit.
* @throws IllegalArgumentException
* If the lower limit is greater than the upper limit.
*/
public final void setUpperLimit(Long upperLimit)
throws IllegalArgumentException {
if (upperLimit != null) {
if (upperLimit < 0) {
throw new IllegalArgumentException("Negative upper limit");
}
if (lowerLimit > upperLimit) {
throw new IllegalArgumentException(
"Lower limit greater than upper limit");
}
}
this.upperLimit = upperLimit;
}
/**
* Set the upper limit using a string representation of the limit.
*
* @param upperLimit
* The string representation of the new upper limit, or
* <code>null</code> if there is no upper limit.
* @throws IllegalArgumentException
* If the upper limit could not be parsed, or if the lower limit
* is greater than the upper limit.
*/
public final void setUpperLimit(String upperLimit)
throws IllegalArgumentException {
if (upperLimit == null) {
setUpperLimit((Long) null);
} else {
setUpperLimit(SizeUnit.parseValue(upperLimit, SizeUnit.BYTES));
}
}
/**
* Specify whether or not this property definition will allow unlimited
* values (default is false).
*
* @param allowUnlimited
* <code>true</code> if the property will allow unlimited values,
* or <code>false</code> otherwise.
*/
public final void setAllowUnlimited(boolean allowUnlimited) {
this.allowUnlimited = allowUnlimited;
}
/**
* {@inheritDoc}
*/
@Override
protected SizePropertyDefinition buildInstance(
AbstractManagedObjectDefinition<?, ?> d, String propertyName,
EnumSet<PropertyOption> options,
AdministratorAction adminAction,
DefaultBehaviorProvider<Long> defaultBehavior) {
return new SizePropertyDefinition(d, propertyName, options, adminAction,
defaultBehavior, lowerLimit, upperLimit, allowUnlimited);
}
}
/**
* Create an memory size property definition builder.
*
* @param d
* The managed object definition associated with this
* property definition.
* @param propertyName
* The property name.
* @return Returns the new integer property definition builder.
*/
public static Builder createBuilder(
AbstractManagedObjectDefinition<?, ?> d, String propertyName) {
return new Builder(d, propertyName);
}
// Private constructor.
private SizePropertyDefinition(
AbstractManagedObjectDefinition<?, ?> d, String propertyName,
EnumSet<PropertyOption> options,
AdministratorAction adminAction,
DefaultBehaviorProvider<Long> defaultBehavior, Long lowerLimit,
Long upperLimit, boolean allowUnlimited) {
super(d, Long.class, propertyName, options, adminAction,
defaultBehavior);
this.lowerLimit = lowerLimit;
this.upperLimit = upperLimit;
this.allowUnlimited = allowUnlimited;
}
/**
* Get the lower limit in bytes.
*
* @return Returns the lower limit in bytes.
*/
public long getLowerLimit() {
return lowerLimit;
}
/**
* Get the upper limit in bytes.
*
* @return Returns the upper limit in bytes or <code>null</code> if there is
* no upper limit.
*/
public Long getUpperLimit() {
return upperLimit;
}
/**
* Determine whether this property allows unlimited memory sizes.
*
* @return Returns <code>true</code> if this this property allows unlimited
* memory sizes.
*/
public boolean isAllowUnlimited() {
return allowUnlimited;
}
/**
* {@inheritDoc}
*/
@Override
public void validateValue(Long value) throws IllegalPropertyValueException {
ensureNotNull(value);
if (!allowUnlimited && value < lowerLimit) {
throw new IllegalPropertyValueException(this, value);
// unlimited allowed
} else if (value >= 0 && value < lowerLimit) {
throw new IllegalPropertyValueException(this, value);
}
if ((upperLimit != null) && (value > upperLimit)) {
throw new IllegalPropertyValueException(this, value);
}
}
/**
* {@inheritDoc}
*/
@Override
public String encodeValue(Long value) throws IllegalPropertyValueException {
ensureNotNull(value);
// Make sure that we correctly encode negative values as "unlimited".
if (allowUnlimited) {
if (value < 0) {
return UNLIMITED;
}
}
// Encode the size value using the best-fit unit.
StringBuilder builder = new StringBuilder();
SizeUnit unit = SizeUnit.getBestFitUnitExact(value);
// Cast to a long to remove fractional part (which should not be there
// anyway as the best-fit unit should result in an exact conversion).
builder.append((long) unit.fromBytes(value));
builder.append(' ');
builder.append(unit.toString());
return builder.toString();
}
/**
* {@inheritDoc}
*/
@Override
public Long decodeValue(String value)
throws IllegalPropertyValueStringException {
ensureNotNull(value);
// First check for the special "unlimited" value when necessary.
if (allowUnlimited) {
if (value.trim().equalsIgnoreCase(UNLIMITED)) {
return -1L;
}
}
// Decode the value.
Long i;
try {
i = SizeUnit.parseValue(value, SizeUnit.BYTES);
} catch (NumberFormatException e) {
throw new IllegalPropertyValueStringException(this, value);
}
try {
validateValue(i);
} catch (IllegalPropertyValueException e) {
throw new IllegalPropertyValueStringException(this, value);
}
return i;
}
/**
* {@inheritDoc}
*/
@Override
public <R, P> R accept(PropertyDefinitionVisitor<R, P> v, P p) {
return v.visitSize(this, p);
}
/**
* {@inheritDoc}
*/
@Override
public <R, P> R accept(PropertyValueVisitor<R, P> v, Long value, P p) {
return v.visitSize(this, value, p);
}
/**
* {@inheritDoc}
*/
@Override
public void toString(StringBuilder builder) {
super.toString(builder);
builder.append(" lowerLimit=");
builder.append(lowerLimit);
if (upperLimit != null) {
builder.append(" upperLimit=");
builder.append(upperLimit);
}
builder.append(" allowUnlimited=");
builder.append(allowUnlimited);
}
/**
* {@inheritDoc}
*/
@Override
public int compare(Long o1, Long o2) {
return o1.compareTo(o2);
}
}