/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2014-2015 ForgeRock AS
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*/
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package org.opends.server.config;
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import java.util.ArrayList;
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import java.util.LinkedHashSet;
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import java.util.List;
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import javax.management.AttributeList;
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import javax.management.MBeanAttributeInfo;
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import javax.management.MBeanParameterInfo;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.opendj.ldap.schema.Syntax;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.types.Attribute;
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import static org.opends.messages.ConfigMessages.*;
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import static org.opends.server.config.ConfigConstants.*;
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import static org.opends.server.util.CollectionUtils.*;
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/**
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* This class defines a configuration attribute that is only intended for use
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* in displaying information. It will not allow its value to be altered.
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*/
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@org.opends.server.types.PublicAPI(
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stability=org.opends.server.types.StabilityLevel.VOLATILE,
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mayInstantiate=true,
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mayExtend=false,
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mayInvoke=true)
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public final class ReadOnlyConfigAttribute
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extends ConfigAttribute
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{
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/** The set of values for this attribute. */
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private List<String> values;
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/**
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* Creates a new read-only configuration attribute stub with the provided
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* information but no values. The values will be set using the
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* <CODE>setInitialValue</CODE> method.
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*
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* @param name The name for this configuration attribute.
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* @param description The description for this configuration attribute.
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* @param isMultiValued Indicates whether this configuration attribute may
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* have multiple values.
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*/
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public ReadOnlyConfigAttribute(String name, LocalizableMessage description,
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boolean isMultiValued)
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{
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super(name, description, false, isMultiValued, false);
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values = new ArrayList<>();
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}
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/**
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* Creates a new read-only configuration attribute with the provided
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* information.
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*
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* @param name The name for this configuration attribute.
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* @param description The description for this configuration attribute.
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* @param value The value for this configuration attribute.
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*/
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public ReadOnlyConfigAttribute(String name, LocalizableMessage description, String value)
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{
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super(name, description, false, false, false, getValueSet(value));
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if (value == null)
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{
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values = new ArrayList<>(0);
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}
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else
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{
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values = newArrayList(value);
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}
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}
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/**
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* Creates a new read-only configuration attribute with the provided
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* information.
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*
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* @param name The name for this configuration attribute.
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* @param description The description for this configuration attribute.
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* @param values The set of values for this configuration attribute.
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*/
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public ReadOnlyConfigAttribute(String name, LocalizableMessage description,
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List<String> values)
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{
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super(name, description, false, true, false, getValueSet(values));
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if (values == null)
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{
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this.values = new ArrayList<>();
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}
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else
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{
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this.values = values;
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}
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}
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/**
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* Retrieves the name of the data type for this configuration attribute. This
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* is for informational purposes (e.g., inclusion in method signatures and
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* other kinds of descriptions) and does not necessarily need to map to an
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* actual Java type.
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*
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* @return The name of the data type for this configuration attribute.
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*/
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public String getDataType()
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{
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return "ReadOnly";
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}
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/**
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* Retrieves the attribute syntax for this configuration attribute.
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*
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* @return The attribute syntax for this configuration attribute.
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*/
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public Syntax getSyntax()
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{
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return DirectoryServer.getDefaultStringSyntax();
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}
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/**
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* Retrieves the active value for this configuration attribute as a string.
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* This is only valid for single-valued attributes that have a value.
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*
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* @return The active value for this configuration attribute as a string.
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*
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* @throws ConfigException If this attribute does not have exactly one
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* active value.
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*/
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public String activeValue()
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throws ConfigException
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{
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if (values == null || values.isEmpty())
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{
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throw new ConfigException(ERR_CONFIG_ATTR_NO_STRING_VALUE.get(getName()));
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}
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if (values.size() > 1)
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{
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throw new ConfigException(ERR_CONFIG_ATTR_MULTIPLE_STRING_VALUES.get(getName()));
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}
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return values.get(0);
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}
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/**
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* Retrieves the set of active values for this configuration attribute.
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*
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* @return The set of active values for this configuration attribute.
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*/
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public List<String> activeValues()
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{
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return values;
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}
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/**
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* Retrieves the pending value for this configuration attribute as a string.
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* This is only valid for single-valued attributes that have a value. If this
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* attribute does not have any pending values, then the active value will be
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* returned.
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*
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* @return The pending value for this configuration attribute as a string.
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*
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* @throws ConfigException If this attribute does not have exactly one
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* pending value.
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*/
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public String pendingValue()
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throws ConfigException
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{
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return activeValue();
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}
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/**
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* Retrieves the set of pending values for this configuration attribute. If
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* there are no pending values, then the set of active values will be
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* returned.
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*
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* @return The set of pending values for this configuration attribute.
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*/
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public List<String> pendingValues()
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{
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return activeValues();
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}
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/**
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* Sets the value for this string configuration attribute.
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*
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* @param value The value for this string configuration attribute.
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*
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* @throws ConfigException If the provided value is not acceptable.
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*/
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public void setValue(String value) throws ConfigException
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{
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throw new ConfigException(ERR_CONFIG_ATTR_READ_ONLY.get(getName()));
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}
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/**
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* Sets the values for this string configuration attribute.
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*
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* @param values The set of values for this string configuration attribute.
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*
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* @throws ConfigException If the provided value set or any of the
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* individual values are not acceptable.
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*/
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public void setValues(List<String> values) throws ConfigException
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{
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throw new ConfigException(ERR_CONFIG_ATTR_READ_ONLY.get(getName()));
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}
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/**
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* Applies the set of pending values, making them the active values for this
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* configuration attribute. This will not take any action if there are no
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* pending values.
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*/
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public void applyPendingValues()
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{
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}
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/**
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* Indicates whether the provided value is acceptable for use in this
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* attribute. If it is not acceptable, then the reason should be written into
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* the provided buffer.
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*
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* @param value The value for which to make the determination.
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* @param rejectReason A buffer into which a human-readable reason for the
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* reject may be written.
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*
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* @return <CODE>true</CODE> if the provided value is acceptable for use in
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* this attribute, or <CODE>false</CODE> if not.
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*/
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public boolean valueIsAcceptable(ByteString value, StringBuilder rejectReason)
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{
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rejectReason.append(ERR_CONFIG_ATTR_READ_ONLY.get(getName()));
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return false;
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}
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/**
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* Converts the provided set of strings to a corresponding set of attribute
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* values.
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*
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* @param valueStrings The set of strings to be converted into attribute
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* values.
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* @param allowFailures Indicates whether the decoding process should allow
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* any failures in which one or more values could be
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* decoded but at least one could not. If this is
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* <CODE>true</CODE> and such a condition is acceptable
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* for the underlying attribute type, then the returned
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* set of values should simply not include those
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* undecodable values.
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*
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* @return The set of attribute values converted from the provided strings.
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*
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* @throws ConfigException If an unrecoverable problem occurs while
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* performing the conversion.
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*/
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public LinkedHashSet<ByteString> stringsToValues(List<String> valueStrings, boolean allowFailures)
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throws ConfigException
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{
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if (valueStrings == null || valueStrings.isEmpty())
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{
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return new LinkedHashSet<>();
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}
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return getValueSet(valueStrings);
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}
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/**
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* Converts the set of active values for this configuration attribute into a
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* set of strings that may be stored in the configuration or represented over
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* protocol. The string representation used by this method should be
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* compatible with the decoding used by the <CODE>stringsToValues</CODE>
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* method.
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*
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* @return The string representations of the set of active values for this
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* configuration attribute.
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*/
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public List<String> activeValuesToStrings()
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{
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return values;
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}
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/**
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* Converts the set of pending values for this configuration attribute into a
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* set of strings that may be stored in the configuration or represented over
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* protocol. The string representation used by this method should be
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* compatible with the decoding used by the <CODE>stringsToValues</CODE>
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* method.
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*
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* @return The string representations of the set of pending values for this
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* configuration attribute, or <CODE>null</CODE> if there are no
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* pending values.
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*/
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public List<String> pendingValuesToStrings()
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{
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return activeValuesToStrings();
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}
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/**
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* Retrieves a new configuration attribute of this type that will contain the
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* values from the provided attribute.
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*
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* @param attributeList The list of attributes to use to create the config
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* attribute. The list must contain either one or two
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* elements, with both attributes having the same base
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* name and the only option allowed is ";pending" and
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* only if this attribute is one that requires admin
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* action before a change may take effect.
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*
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* @return The generated configuration attribute.
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*
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* @throws ConfigException If the provided attribute cannot be treated as a
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* configuration attribute of this type (e.g., if
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* one or more of the values of the provided
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* attribute are not suitable for an attribute of
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* this type, or if this configuration attribute is
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* single-valued and the provided attribute has
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* multiple values).
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*/
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public ConfigAttribute getConfigAttribute(List<Attribute> attributeList)
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throws ConfigException
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{
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// The attribute won't be present in the entry, so we'll just return a
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// reference to this attribute.
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return duplicate();
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}
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/**
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* Retrieves a JMX attribute containing the active value set for this
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* configuration attribute.
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*
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* @return A JMX attribute containing the active value set for this
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* configuration attribute, or <CODE>null</CODE> if it does not have
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* any active values.
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*/
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public javax.management.Attribute toJMXAttribute()
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{
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if (isMultiValued())
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{
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String[] valueArray = values.toArray(new String[values.size()]);
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return new javax.management.Attribute(getName(), valueArray);
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}
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else if (!values.isEmpty())
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{
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return new javax.management.Attribute(getName(), values.get(0));
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}
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else
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{
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return null;
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}
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}
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/**
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* Retrieves a JMX attribute containing the pending value set for this
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* configuration attribute. As this an read only attribute, this method
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* should never be called
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*
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* @return A JMX attribute containing the pending value set for this
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* configuration attribute, or <CODE>null</CODE> if it does
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* not have any active values.
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*/
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@Override
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public javax.management.Attribute toJMXAttributePending()
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{
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// Should never occur !!!
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return toJMXAttribute();
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}
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/**
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* Adds information about this configuration attribute to the provided JMX
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* attribute list. If this configuration attribute requires administrative
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* action before changes take effect and it has a set of pending values, then
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* two attributes should be added to the list -- one for the active value
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* and one for the pending value. The pending value should be named with
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* the pending option.
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*
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* @param attributeList The attribute list to which the JMX attribute(s)
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* should be added.
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*/
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public void toJMXAttribute(AttributeList attributeList)
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{
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attributeList.add(toJMXAttribute());
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}
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/**
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* Adds information about this configuration attribute to the provided list in
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* the form of a JMX <CODE>MBeanAttributeInfo</CODE> object. If this
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* configuration attribute requires administrative action before changes take
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* effect and it has a set of pending values, then two attribute info objects
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* should be added to the list -- one for the active value (which should be
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* read-write) and one for the pending value (which should be read-only). The
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* pending value should be named with the pending option.
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*
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* @param attributeInfoList The list to which the attribute information
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* should be added.
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*/
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public void toJMXAttributeInfo(List<MBeanAttributeInfo> attributeInfoList)
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{
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attributeInfoList.add(new MBeanAttributeInfo(getName(), getType(),
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String.valueOf(getDescription()), true, false, false));
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}
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/**
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* Retrieves a JMX <CODE>MBeanParameterInfo</CODE> object that describes this
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* configuration attribute.
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*
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* @return A JMX <CODE>MBeanParameterInfo</CODE> object that describes this
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* configuration attribute.
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*/
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public MBeanParameterInfo toJMXParameterInfo()
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{
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return new MBeanParameterInfo(getName(), getType(), String.valueOf(getDescription()));
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}
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private String getType()
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{
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return isMultiValued() ? JMX_TYPE_STRING_ARRAY : String.class.getName();
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}
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/**
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* Attempts to set the value of this configuration attribute based on the
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* information in the provided JMX attribute.
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*
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* @param jmxAttribute The JMX attribute to use to attempt to set the value
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* of this configuration attribute.
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*
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* @throws ConfigException If the provided JMX attribute does not have an
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* acceptable value for this configuration
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* attribute.
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*/
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public void setValue(javax.management.Attribute jmxAttribute)
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throws ConfigException
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{
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throw new ConfigException(ERR_CONFIG_ATTR_READ_ONLY.get(getName()));
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}
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/**
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* Creates a duplicate of this configuration attribute.
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*
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* @return A duplicate of this configuration attribute.
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*/
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public ConfigAttribute duplicate()
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{
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return new ReadOnlyConfigAttribute(getName(), getDescription(), activeValues());
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}
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}
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