/*
* 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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*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
*/
package org.opends.server.config;
import org.opends.messages.Message;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import javax.management.AttributeList;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanParameterInfo;
import org.opends.server.api.AttributeSyntax;
import org.opends.server.core.DirectoryServer;
import org.opends.server.types.*;
import static org.opends.server.config.ConfigConstants.*;
import static org.opends.server.loggers.debug.DebugLogger.*;
import org.opends.server.loggers.debug.DebugTracer;
import org.opends.server.loggers.ErrorLogger;
import static org.opends.messages.ConfigMessages.*;
/**
* This class defines a configuration attribute that stores both an integer
* value and an associated unit. The unit will contain both a string and a
* floating-point value. When a unit is selected, then the associated value
* will be used as a multiplier for the integer value to achieve the actual
* value for this parameter. For example, the attribute could be used to
* specify a size in bytes, but a value with a unit of "kb" could multiply that
* value by 1024, or "mb" by 1048576, or "gb" by 1073741824. In this case, a
* value of "50 gb" would be the logical equivalent of "53687091200 b". Upper
* and lower bounds may be imposed, and in that case they will be imposed on
* the actual value not on merely the integer portion. This attribute may only
* hold a single value and it will always be required.
*/
@org.opends.server.types.PublicAPI(
stability=org.opends.server.types.StabilityLevel.VOLATILE,
mayInstantiate=true,
mayExtend=false,
mayInvoke=true)
public final class IntegerWithUnitConfigAttribute
extends ConfigAttribute
{
/**
* The tracer object for the debug logger.
*/
private static final DebugTracer TRACER = getTracer();
// Indicates whether this configuration attribute should impose a lower bound
// for the calculated value.
private boolean hasLowerBound;
// Indicates whether this configuration attribute should impose an upper bound
// for the calculated value.
private boolean hasUpperBound;
// The set of unit names and associated multipliers.
private HashMap<String,Double> units;
// The active calculated value for this attribute.
private long activeCalculatedValue;
// The active value for this attribute.
private long activeIntValue;
// The lower bound for the calculated value.
private long lowerBound;
// The pending calculated value for this attribute.
private long pendingCalculatedValue;
// The the pending value for this attribute.
private long pendingIntValue;
// The upper bound for the calculated value.
private long upperBound;
// The active unit for this attribute.
private String activeUnit;
// The pending unit for this attribute.
private String pendingUnit;
/**
* Creates a new integer with unit configuration attribute stub with the
* provided information but no values. The values will be set using the
* <CODE>setInitialValue</CODE> method. Mo validation will be performed on
* the set of allowed units.
*
* @param name The name for this configuration attribute.
* @param description The description for this configuration
* attribute.
* @param requiresAdminAction Indicates whether changes to this
* configuration attribute require administrative
* action before they will take effect.
* @param units The set of units and their associated
* multipliers for this configuration attribute.
* @param hasLowerBound Indicates whether a lower bound will be
* enforced for the calculated value.
* @param lowerBound The lower bound for the calculated value.
* @param hasUpperBound Indicates whether an upper bound will be
* enforced for the calculated value.
* @param upperBound The upper bound for the calculated value.
*/
public IntegerWithUnitConfigAttribute(String name, Message description,
boolean requiresAdminAction,
HashMap<String,Double> units,
boolean hasLowerBound, long lowerBound,
boolean hasUpperBound, long upperBound)
{
super(name, description, true, false, requiresAdminAction);
this.units = units;
this.hasLowerBound = hasLowerBound;
this.lowerBound = lowerBound;
this.hasUpperBound = hasUpperBound;
this.upperBound = upperBound;
}
/**
* Creates a new integer with unit configuration attribute with the provided
* information. No validation will be performed on the provided value or
* unit, or on the set of allowed units.
*
* @param name The name for this configuration attribute.
* @param description The description for this configuration
* attribute.
* @param requiresAdminAction Indicates whether changes to this
* configuration attribute require administrative
* action before they will take effect.
* @param units The set of units and their associated
* multipliers for this configuration attribute.
* @param hasLowerBound Indicates whether a lower bound will be
* enforced for the calculated value.
* @param lowerBound The lower bound for the calculated value.
* @param hasUpperBound Indicates whether an upper bound will be
* enforced for the calculated value.
* @param upperBound The upper bound for the calculated value.
* @param intValue The selected value for this configuration
* attribute.
* @param selectedUnit The selected unit for this configuration
* attribute.
*/
public IntegerWithUnitConfigAttribute(String name, Message description,
boolean requiresAdminAction,
HashMap<String,Double> units,
boolean hasLowerBound, long lowerBound,
boolean hasUpperBound, long upperBound,
long intValue, String selectedUnit)
{
super(name, description, true, false, requiresAdminAction,
getValueSet(intValue, selectedUnit));
this.units = units;
this.hasLowerBound = hasLowerBound;
this.lowerBound = lowerBound;
this.hasUpperBound = hasUpperBound;
this.upperBound = upperBound;
this.activeIntValue = intValue;
this.activeUnit = selectedUnit;
pendingIntValue = activeIntValue;
pendingUnit = activeUnit;
if (units.containsKey(selectedUnit))
{
activeCalculatedValue = (long) (activeIntValue * units.get(selectedUnit));
}
pendingCalculatedValue = activeCalculatedValue;
}
/**
* Creates a new integer with unit configuration attribute with the provided
* information. No validation will be performed on the provided value or
* unit, or on the set of allowed units.
*
* @param name The name for this configuration attribute.
* @param description The description for this configuration
* attribute.
* @param requiresAdminAction Indicates whether changes to this
* configuration attribute require administrative
* action before they will take effect.
* @param units The set of units and their associated
* multipliers for this configuration attribute.
* @param hasLowerBound Indicates whether a lower bound will be
* enforced for the calculated value.
* @param lowerBound The lower bound for the calculated value.
* @param hasUpperBound Indicates whether an upper bound will be
* enforced for the calculated value.
* @param upperBound The upper bound for the calculated value.
* @param activeIntValue The active selected value for this
* configuration attribute.
* @param activeSelectedUnit The active selected unit for this
* configuration attribute.
* @param pendingIntValue The pending selected value for this
* configuration attribute.
* @param pendingSelectedUnit The pending selected unit for this
* configuration attribute.
*/
public IntegerWithUnitConfigAttribute(String name, Message description,
boolean requiresAdminAction,
HashMap<String,Double> units,
boolean hasLowerBound, long lowerBound,
boolean hasUpperBound, long upperBound,
long activeIntValue,
String activeSelectedUnit,
long pendingIntValue,
String pendingSelectedUnit)
{
super(name, description, true, false, requiresAdminAction,
getValueSet(activeIntValue, activeSelectedUnit),
(pendingSelectedUnit != null),
getValueSet(pendingIntValue,pendingSelectedUnit));
this.units = units;
this.hasLowerBound = hasLowerBound;
this.lowerBound = lowerBound;
this.hasUpperBound = hasUpperBound;
this.upperBound = upperBound;
this.activeIntValue = activeIntValue;
this.activeUnit = activeSelectedUnit;
if (pendingSelectedUnit == null)
{
this.pendingIntValue = activeIntValue;
this.pendingUnit = activeUnit;
}
else
{
this.pendingIntValue = pendingIntValue;
this.pendingUnit = pendingSelectedUnit;
}
if (units.containsKey(activeUnit))
{
activeCalculatedValue = (long) (activeIntValue*units.get(activeUnit));
}
if (units.containsKey(pendingUnit))
{
pendingCalculatedValue = (long) (pendingIntValue*units.get(pendingUnit));
}
}
/**
* Retrieves the name of the data type for this configuration attribute. This
* is for informational purposes (e.g., inclusion in method signatures and
* other kinds of descriptions) and does not necessarily need to map to an
* actual Java type.
*
* @return The name of the data type for this configuration attribute.
*/
public String getDataType()
{
return "IntegerWithUnit";
}
/**
* Retrieves the attribute syntax for this configuration attribute.
*
* @return The attribute syntax for this configuration attribute.
*/
public AttributeSyntax<?> getSyntax()
{
return DirectoryServer.getDefaultStringSyntax();
}
/**
* Retrieves the integer component of the active value for this configuration
* attribute.
*
* @return The integer component of the active value for this configuration
* attribute.
*/
public long activeIntValue()
{
return activeIntValue;
}
/**
* Retrieves the name of the active unit for this configuration attribute.
*
* @return The name of the active unit for this configuration attribute.
*/
public String activeUnit()
{
return activeUnit;
}
/**
* Retrieves the calculated active value for this configuration attribute.
* This will be the product of the active int value and the multiplier for the
* associated active unit.
*
* @return The calculated active value for this configuration attribute.
*/
public long activeCalculatedValue()
{
return activeCalculatedValue;
}
/**
* Retrieves the integer component of the pending value for this configuration
* attribute. If there is no pending value, then the integer component of the
* active value will be returned.
*
* @return The integer component of the pending value for this configuration
* attribute.
*/
public long pendingIntValue()
{
if (hasPendingValues())
{
return pendingIntValue;
}
else
{
return activeIntValue;
}
}
/**
* Retrieves the name of the pending unit for this configuration attribute.
* If there is no pending value, then the unit for the active value will be
* returned.
*
* @return The name of the pending unit for this configuration attribute.
*/
public String pendingUnit()
{
if (hasPendingValues())
{
return pendingUnit;
}
else
{
return activeUnit;
}
}
/**
* Retrieves the calculated pending value for this configuration attribute.
* This will be the product of the pending int value and the multiplier for
* the associated pending unit. If there is no pending value, then the
* calculated active value will be returned.
*
* @return The calculated pending value for this configuration attribute.
*/
public long pendingCalculatedValue()
{
if (hasPendingValues())
{
return pendingCalculatedValue;
}
else
{
return activeCalculatedValue;
}
}
/**
* Retrieves the mapping between the allowed names for the units and their
* multipliers for this configuration attribute.
*
* @return The mapping between the allowed names for the units and their
* multipliers for this configuration attribute.
*/
public HashMap<String,Double> getUnits()
{
return units;
}
/**
* Indicates whether a lower bound will be enforced for the calculated value
* of this configuration attribute.
*
* @return <CODE>true</CODE> if a lower bound will be enforced for the
* calculated value of this configuration attribute, or
* <CODE>false</CODE> if not.
*/
public boolean hasLowerBound()
{
return hasLowerBound;
}
/**
* Retrieves the lower bound for the calculated value of this configuration
* attribute.
*
* @return The lower bound for the calculated value of this configuration
* attribute.
*/
public long getLowerBound()
{
return lowerBound;
}
/**
* Indicates whether an upper bound will be enforced for the calculated value
* of this configuration attribute.
*
* @return <CODE>true</CODE> if an upper bound will be enforced for the
* calculated value of this configuration attribute, or
* <CODE>false</CODE> if not.
*/
public boolean hasUpperBound()
{
return hasUpperBound;
}
/**
* Retrieves the upper bound for the calculated value of this configuration
* attribute.
*
* @return The upper bound for the calculated value of this configuration
* attribute.
*/
public long getUpperBound()
{
return upperBound;
}
/**
* Sets the value for this configuration attribute.
*
* @param intValue The integer component for the value of this configuration
* attribute.
* @param unit The unit for the value of this configuration attribute.
*
* @throws ConfigException If the provided unit is not recognized, or if the
* resulting calculated value is outside the
* acceptable bounds.
*/
public void setValue(long intValue, String unit)
throws ConfigException
{
if ((unit == null) || (! units.containsKey(unit)))
{
Message message = ERR_CONFIG_ATTR_INVALID_UNIT.get(unit, getName());
throw new ConfigException(message);
}
long calculatedValue = (long) (intValue * units.get(unit));
if (hasLowerBound && (calculatedValue < lowerBound))
{
Message message = ERR_CONFIG_ATTR_INT_BELOW_LOWER_BOUND.get(
getName(), calculatedValue, lowerBound);
throw new ConfigException(message);
}
if (hasUpperBound && (calculatedValue > upperBound))
{
Message message = ERR_CONFIG_ATTR_INT_ABOVE_UPPER_BOUND.get(
getName(), calculatedValue, upperBound);
throw new ConfigException(message);
}
if (requiresAdminAction())
{
pendingCalculatedValue = calculatedValue;
pendingIntValue = intValue;
pendingUnit = unit;
setPendingValues(getValueSet(intValue, unit));
}
else
{
activeCalculatedValue = calculatedValue;
activeIntValue = intValue;
activeUnit = unit;
setActiveValues(getValueSet(intValue, unit));
}
}
/**
* Sets the value for this configuration attribute.
*
* @param value The string representation of the value to use for this
* configuration attribute.
*
* @throws ConfigException If the provided value is invalid for some reason.
*/
public void setValue(String value)
throws ConfigException
{
int spacePos = value.indexOf(' ');
if (spacePos <= 0)
{
Message message = ERR_CONFIG_ATTR_NO_UNIT_DELIMITER.get(
String.valueOf(value), getName());
throw new ConfigException(message);
}
long longValue;
try
{
longValue = Long.parseLong(value.substring(0, spacePos));
}
catch (Exception e)
{
if (debugEnabled())
{
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
Message message = ERR_CONFIG_ATTR_COULD_NOT_PARSE_INT_COMPONENT.get(
String.valueOf(value), getName(), String.valueOf(e));
throw new ConfigException(message, e);
}
setValue(longValue, value.substring(spacePos+1));
}
/**
* Creates the appropriate value set with the provided value.
*
* @param intValue The integer component for the value to construct.
* @param unit The unit name for the value to construct.
*
* @return The constructed value set.
*/
private static LinkedHashSet<AttributeValue> getValueSet(long intValue,
String unit)
{
if (unit == null)
{
return null;
}
LinkedHashSet<AttributeValue> valueSet =
new LinkedHashSet<AttributeValue>(1);
String valueString = intValue + " " + unit;
valueSet.add(AttributeValues.create(ByteString.valueOf(valueString),
ByteString.valueOf(valueString)));
return valueSet;
}
/**
* Applies the set of pending values, making them the active values for this
* configuration attribute. This will not take any action if there are no
* pending values.
*/
public void applyPendingValues()
{
if (! hasPendingValues())
{
return;
}
super.applyPendingValues();
activeCalculatedValue = pendingCalculatedValue;
activeIntValue = pendingIntValue;
activeUnit = pendingUnit;
}
/**
* Indicates whether the provided value is acceptable for use in this
* attribute. If it is not acceptable, then the reason should be written into
* the provided buffer.
*
* @param value The value for which to make the determination.
* @param rejectReason A buffer into which a human-readable reason for the
* reject may be written.
*
* @return <CODE>true</CODE> if the provided value is acceptable for use in
* this attribute, or <CODE>false</CODE> if not.
*/
public boolean valueIsAcceptable(AttributeValue value,
StringBuilder rejectReason)
{
// Get a string representation of the value and convert it to lowercase.
String lowerValue = value.getValue().toString().toLowerCase();
return valueIsAcceptable(lowerValue, rejectReason);
}
/**
* Indicates whether the provided value is acceptable for use in this
* attribute. If it is not acceptable, then the reason should be written into
* the provided buffer.
*
* @param lowerValue The lowercase version of the value for which to make
* the determination.
* @param rejectReason A buffer into which a human-readable reason for the
* reject may be written.
*
* @return <CODE>true</CODE> if the provided value is acceptable for use in
* this attribute, or <CODE>false</CODE> if not.
*/
public boolean valueIsAcceptable(String lowerValue,
StringBuilder rejectReason)
{
// Find the first space in the value, since it should separate the integer
// from the unit.
int spacePos = lowerValue.indexOf(' ');
if (spacePos < 0)
{
rejectReason.append(ERR_CONFIG_ATTR_NO_UNIT_DELIMITER.get(
lowerValue, getName()));
return false;
}
// The part up to the space should be the integer component.
long longValue;
try
{
longValue = Long.parseLong(lowerValue.substring(0, spacePos));
}
catch (Exception e)
{
if (debugEnabled())
{
TRACER.debugCaught(DebugLogLevel.ERROR, e);
}
rejectReason.append(ERR_CONFIG_ATTR_INT_COULD_NOT_PARSE.get(
lowerValue, getName(), String.valueOf(e)));
return false;
}
// The rest of the value should be the unit. See if it is in the set of
// available units.
String unit = lowerValue.substring(spacePos+1);
double multiplier;
if (! units.containsKey(unit))
{
rejectReason.append(ERR_CONFIG_ATTR_INVALID_UNIT.get(unit,
getName()));
return false;
}
else
{
multiplier = units.get(unit);
}
// Multiply the int value by the unit multiplier and see if that is within
// the specified bounds.
long calculatedValue = (long) (longValue * multiplier);
if (hasLowerBound && (calculatedValue < lowerBound))
{
rejectReason.append(ERR_CONFIG_ATTR_INT_BELOW_LOWER_BOUND.get(
getName(), calculatedValue, lowerBound));
return false;
}
if (hasUpperBound && (calculatedValue > upperBound))
{
rejectReason.append(ERR_CONFIG_ATTR_INT_ABOVE_UPPER_BOUND.get(
getName(), calculatedValue, upperBound));
return false;
}
// If we've gotten here, then the value is OK.
return true;
}
/**
* Converts the provided set of strings to a corresponding set of attribute
* values.
*
* @param valueStrings The set of strings to be converted into attribute
* values.
* @param allowFailures Indicates whether the decoding process should allow
* any failures in which one or more values could be
* decoded but at least one could not. If this is
* <CODE>true</CODE> and such a condition is acceptable
* for the underlying attribute type, then the returned
* set of values should simply not include those
* undecodable values.
*
* @return The set of attribute values converted from the provided strings.
*
* @throws ConfigException If an unrecoverable problem occurs while
* performing the conversion.
*/
public LinkedHashSet<AttributeValue>
stringsToValues(List<String> valueStrings, boolean allowFailures)
throws ConfigException
{
if ((valueStrings == null) || valueStrings.isEmpty())
{
if (isRequired())
{
Message message = ERR_CONFIG_ATTR_IS_REQUIRED.get(getName());
throw new ConfigException(message);
}
else
{
return new LinkedHashSet<AttributeValue>();
}
}
int numValues = valueStrings.size();
if ((! isMultiValued()) && (numValues > 1))
{
Message message =
ERR_CONFIG_ATTR_SET_VALUES_IS_SINGLE_VALUED.get(getName());
throw new ConfigException(message);
}
LinkedHashSet<AttributeValue> valueSet =
new LinkedHashSet<AttributeValue>(numValues);
for (String valueString : valueStrings)
{
if ((valueString == null) || (valueString.length() == 0))
{
Message message = ERR_CONFIG_ATTR_EMPTY_STRING_VALUE.get(getName());
if (allowFailures)
{
ErrorLogger.logError(message);
continue;
}
else
{
throw new ConfigException(message);
}
}
StringBuilder rejectReason = new StringBuilder();
if (! valueIsAcceptable(valueString.toLowerCase(), rejectReason))
{
Message message = ERR_CONFIG_ATTR_INVALID_VALUE_WITH_UNIT.get(
valueString, getName(),
rejectReason.toString());
if (allowFailures)
{
ErrorLogger.logError(message);
continue;
}
else
{
throw new ConfigException(message);
}
}
valueSet.add(AttributeValues.create(ByteString.valueOf(valueString),
ByteString.valueOf(valueString)));
}
// If this method was configured to continue on error, then it is possible
// that we ended up with an empty list. Check to see if this is a required
// attribute and if so deal with it accordingly.
if ((isRequired()) && valueSet.isEmpty())
{
Message message = ERR_CONFIG_ATTR_IS_REQUIRED.get(getName());
throw new ConfigException(message);
}
return valueSet;
}
/**
* Converts the set of active values for this configuration attribute into a
* set of strings that may be stored in the configuration or represented over
* protocol. The string representation used by this method should be
* compatible with the decoding used by the <CODE>stringsToValues</CODE>
* method.
*
* @return The string representations of the set of active values for this
* configuration attribute.
*/
public List<String> activeValuesToStrings()
{
ArrayList<String> valueStrings = new ArrayList<String>(1);
valueStrings.add(activeIntValue + " " + activeUnit);
return valueStrings;
}
/**
* Converts the set of pending values for this configuration attribute into a
* set of strings that may be stored in the configuration or represented over
* protocol. The string representation used by this method should be
* compatible with the decoding used by the <CODE>stringsToValues</CODE>
* method.
*
* @return The string representations of the set of pending values for this
* configuration attribute, or <CODE>null</CODE> if there are no
* pending values.
*/
public List<String> pendingValuesToStrings()
{
if (hasPendingValues())
{
ArrayList<String> valueStrings = new ArrayList<String>(1);
valueStrings.add(pendingIntValue + " " + pendingUnit);
return valueStrings;
}
else
{
return null;
}
}
/**
* Retrieves a new configuration attribute of this type that will contain the
* values from the provided attribute.
*
* @param attributeList The list of attributes to use to create the config
* attribute. The list must contain either one or two
* elements, with both attributes having the same base
* name and the only option allowed is ";pending" and
* only if this attribute is one that requires admin
* action before a change may take effect.
*
* @return The generated configuration attribute.
*
* @throws ConfigException If the provided attribute cannot be treated as a
* configuration attribute of this type (e.g., if
* one or more of the values of the provided
* attribute are not suitable for an attribute of
* this type, or if this configuration attribute is
* single-valued and the provided attribute has
* multiple values).
*/
public ConfigAttribute getConfigAttribute(List<Attribute> attributeList)
throws ConfigException
{
long activeIntValue = 0;
long pendingIntValue = 0;
String activeUnit = null;
String pendingUnit = null;
for (Attribute a : attributeList)
{
if (a.hasOptions())
{
// This must be the pending value.
if (a.hasOption(OPTION_PENDING_VALUES))
{
if (pendingUnit != null)
{
// We cannot have multiple pending value sets.
Message message =
ERR_CONFIG_ATTR_MULTIPLE_PENDING_VALUE_SETS.get(a.getName());
throw new ConfigException(message);
}
if (a.isEmpty())
{
// This is illegal -- it must have a value.
Message message = ERR_CONFIG_ATTR_IS_REQUIRED.get(a.getName());
throw new ConfigException(message);
}
else
{
Iterator<AttributeValue> iterator = a.iterator();
String valueString = iterator.next().getValue().toString();
if (iterator.hasNext())
{
// This is illegal -- the attribute is single-valued.
Message message =
ERR_CONFIG_ATTR_SET_VALUES_IS_SINGLE_VALUED.get(a.getName());
throw new ConfigException(message);
}
try
{
int spacePos = valueString.indexOf(' ');
pendingIntValue =
Long.parseLong(valueString.substring(0, spacePos));
pendingUnit = valueString.substring(spacePos+1).trim();
}
catch (Exception e)
{
Message message = ERR_CONFIG_ATTR_COULD_NOT_PARSE_INT_COMPONENT.
get(valueString, a.getName(), String.valueOf(e));
throw new ConfigException(message);
}
// Get the unit and use it to determine the corresponding
// multiplier.
if (! units.containsKey(pendingUnit))
{
Message message =
ERR_CONFIG_ATTR_INVALID_UNIT.get(pendingUnit, a.getName());
throw new ConfigException(message);
}
double multiplier = units.get(activeUnit);
pendingCalculatedValue = (long) (multiplier * pendingIntValue);
// Check the bounds set for this attribute.
if (hasLowerBound && (pendingCalculatedValue < lowerBound))
{
Message message = ERR_CONFIG_ATTR_INT_BELOW_LOWER_BOUND.get(
a.getName(), pendingCalculatedValue, lowerBound);
throw new ConfigException(message);
}
if (hasUpperBound && (pendingCalculatedValue > upperBound))
{
Message message = ERR_CONFIG_ATTR_INT_ABOVE_UPPER_BOUND.get(
a.getName(), pendingCalculatedValue, upperBound);
throw new ConfigException(message);
}
}
}
else
{
// This is illegal -- only the pending option is allowed for
// configuration attributes.
Message message =
ERR_CONFIG_ATTR_OPTIONS_NOT_ALLOWED.get(a.getName());
throw new ConfigException(message);
}
}
else
{
// This must be the active value.
if (activeUnit != null)
{
// We cannot have multiple active value sets.
Message message =
ERR_CONFIG_ATTR_MULTIPLE_ACTIVE_VALUE_SETS.get(a.getName());
throw new ConfigException(message);
}
if (a.isEmpty())
{
// This is illegal -- it must have a value.
Message message = ERR_CONFIG_ATTR_IS_REQUIRED.get(a.getName());
throw new ConfigException(message);
}
else
{
Iterator<AttributeValue> iterator = a.iterator();
String valueString = iterator.next().getValue().toString();
if (iterator.hasNext())
{
// This is illegal -- the attribute is single-valued.
Message message =
ERR_CONFIG_ATTR_SET_VALUES_IS_SINGLE_VALUED.get(a.getName());
throw new ConfigException(message);
}
try
{
int spacePos = valueString.indexOf(' ');
activeIntValue =
Long.parseLong(valueString.substring(0, spacePos));
activeUnit = valueString.substring(spacePos+1).trim();
}
catch (Exception e)
{
Message message = ERR_CONFIG_ATTR_COULD_NOT_PARSE_INT_COMPONENT.get(
valueString, a.getName(), String.valueOf(e));
throw new ConfigException(message);
}
// Get the unit and use it to determine the corresponding multiplier.
if (! units.containsKey(activeUnit))
{
Message message =
ERR_CONFIG_ATTR_INVALID_UNIT.get(activeUnit, a.getName());
throw new ConfigException(message);
}
double multiplier = units.get(activeUnit);
activeCalculatedValue = (long) (multiplier * activeIntValue);
// Check the bounds set for this attribute.
if (hasLowerBound && (activeCalculatedValue < lowerBound))
{
Message message = ERR_CONFIG_ATTR_INT_BELOW_LOWER_BOUND.get(
a.getName(), activeCalculatedValue, lowerBound);
throw new ConfigException(message);
}
if (hasUpperBound && (activeCalculatedValue > upperBound))
{
Message message = ERR_CONFIG_ATTR_INT_ABOVE_UPPER_BOUND.get(
a.getName(), activeCalculatedValue, upperBound);
throw new ConfigException(message);
}
}
}
}
if (activeUnit == null)
{
// This is not OK. The value set must contain an active value.
Message message = ERR_CONFIG_ATTR_NO_ACTIVE_VALUE_SET.get(getName());
throw new ConfigException(message);
}
if (pendingUnit == null)
{
// This is OK. We'll just use the active value set.
pendingIntValue = activeIntValue;
pendingUnit = activeUnit;
}
return new IntegerWithUnitConfigAttribute(getName(), getDescription(),
requiresAdminAction(), units,
hasLowerBound, lowerBound,
hasUpperBound, upperBound,
activeIntValue, activeUnit,
pendingIntValue, pendingUnit);
}
/**
* Retrieves a JMX attribute containing the active value set for this
* configuration attribute.
*
* @return A JMX attribute containing the active value set for this
* configuration attribute, or <CODE>null</CODE> if it does not have
* any active values.
*/
public javax.management.Attribute toJMXAttribute()
{
return new javax.management.Attribute(getName(),
activeIntValue + " " + activeUnit);
}
/**
* Retrieves a JMX attribute containing the pending value set for this
* configuration attribute.
*
* @return A JMX attribute containing the pending value set for this
* configuration attribute, or <CODE>null</CODE> if it does not have
* any active values.
*/
public javax.management.Attribute toJMXAttributePending()
{
return new javax.management.Attribute(getName() + ";"
+ OPTION_PENDING_VALUES, pendingIntValue + " " + pendingUnit);
}
/**
* Adds information about this configuration attribute to the provided
* JMX attribute list. If this configuration attribute requires
* administrative action before changes take effect and it has a set of
* pending values, then two attributes should be added to the list --
* one for the active value and one for the pending value. The pending
* value should be named with the pending option.
*
* @param attributeList
* The attribute list to which the JMX attribute(s) should
* be added.
*/
public void toJMXAttribute(AttributeList attributeList)
{
String activeValue = activeIntValue + " " + activeUnit;
attributeList.add(new javax.management.Attribute(getName(), activeValue));
if (requiresAdminAction() &&
(pendingCalculatedValue != activeCalculatedValue))
{
String name = getName() + ";" + OPTION_PENDING_VALUES;
String pendingValue = pendingIntValue + " " + pendingUnit;
attributeList.add(new javax.management.Attribute(name, pendingValue));
}
}
/**
* Adds information about this configuration attribute to the provided list in
* the form of a JMX <CODE>MBeanAttributeInfo</CODE> object. If this
* configuration attribute requires administrative action before changes take
* effect and it has a set of pending values, then two attribute info objects
* should be added to the list -- one for the active value (which should be
* read-write) and one for the pending value (which should be read-only). The
* pending value should be named with the pending option.
*
* @param attributeInfoList The list to which the attribute information
* should be added.
*/
public void toJMXAttributeInfo(List<MBeanAttributeInfo> attributeInfoList)
{
attributeInfoList.add(new MBeanAttributeInfo(getName(),
String.class.getName(),
String.valueOf(
getDescription()),
true, true, false));
if (requiresAdminAction())
{
String name = getName() + ";" + OPTION_PENDING_VALUES;
attributeInfoList.add(new MBeanAttributeInfo(name,
String.class.getName(),
String.valueOf(
getDescription()),
true, false, false));
}
}
/**
* Retrieves a JMX <CODE>MBeanParameterInfo</CODE> object that describes this
* configuration attribute.
*
* @return A JMX <CODE>MBeanParameterInfo</CODE> object that describes this
* configuration attribute.
*/
public MBeanParameterInfo toJMXParameterInfo()
{
return new MBeanParameterInfo(getName(), String.class.getName(),
String.valueOf(getDescription()));
}
/**
* Attempts to set the value of this configuration attribute based on the
* information in the provided JMX attribute.
*
* @param jmxAttribute The JMX attribute to use to attempt to set the value
* of this configuration attribute.
*
* @throws ConfigException If the provided JMX attribute does not have an
* acceptable value for this configuration
* attribute.
*/
public void setValue(javax.management.Attribute jmxAttribute)
throws ConfigException
{
Object value = jmxAttribute.getValue();
if (value instanceof String)
{
setValue((String) value);
}
else
{
Message message = ERR_CONFIG_ATTR_INT_WITH_UNIT_INVALID_TYPE.get(
String.valueOf(value), getName(), value.getClass().getName());
throw new ConfigException(message);
}
}
/**
* Creates a duplicate of this configuration attribute.
*
* @return A duplicate of this configuration attribute.
*/
public ConfigAttribute duplicate()
{
return new IntegerWithUnitConfigAttribute(getName(), getDescription(),
requiresAdminAction(), units,
hasLowerBound, lowerBound,
hasUpperBound, upperBound,
activeIntValue, activeUnit,
pendingIntValue, pendingUnit);
}
}