/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying 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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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.schema;
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import org.opends.messages.Message;
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import org.opends.server.admin.std.server.AttributeSyntaxCfg;
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import org.opends.server.api.ApproximateMatchingRule;
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import org.opends.server.api.AttributeSyntax;
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import org.opends.server.api.AttributeValueDecoder;
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import org.opends.server.api.EqualityMatchingRule;
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import org.opends.server.api.OrderingMatchingRule;
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import org.opends.server.api.SubstringMatchingRule;
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import org.opends.server.config.ConfigException;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.protocols.asn1.ASN1OctetString;
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import org.opends.server.types.AttributeValue;
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import org.opends.server.types.ByteString;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.ResultCode;
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import static org.opends.server.loggers.ErrorLogger.*;
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import static org.opends.messages.SchemaMessages.*;
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import org.opends.messages.MessageBuilder;
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import static org.opends.server.schema.SchemaConstants.*;
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/**
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* This class defines the Boolean attribute syntax, which only allows values of
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* "TRUE" or "FALSE" (although this implementation is more flexible and will
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* also allow "YES", "ON", or "1" instead of "TRUE", or "NO", "OFF", or "0"
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* instead of "FALSE"). Only equality matching is allowed by default for this
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* syntax.
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*/
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public class BooleanSyntax
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extends AttributeSyntax<AttributeSyntaxCfg>
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{
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// The default equality matching rule for this syntax.
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private EqualityMatchingRule defaultEqualityMatchingRule;
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/**
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* A {@link Boolean} attribute value decoder for this syntax.
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*/
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public static final AttributeValueDecoder<Boolean> DECODER =
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new AttributeValueDecoder<Boolean>()
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{
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/**
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* {@inheritDoc}
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*/
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public Boolean decode(AttributeValue value) throws DirectoryException
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{
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ByteString octetString = value.getNormalizedValue();
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return decodeBooleanValue(octetString);
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}
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};
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/**
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* Creates a new instance of this syntax. Note that the only thing that
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* should be done here is to invoke the default constructor for the
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* superclass. All initialization should be performed in the
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* <CODE>initializeSyntax</CODE> method.
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*/
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public BooleanSyntax()
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{
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super();
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}
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/**
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* {@inheritDoc}
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*/
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public void initializeSyntax(AttributeSyntaxCfg configuration)
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throws ConfigException
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{
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defaultEqualityMatchingRule =
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DirectoryServer.getEqualityMatchingRule(EMR_BOOLEAN_OID);
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if (defaultEqualityMatchingRule == null)
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{
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logError(ERR_ATTR_SYNTAX_UNKNOWN_EQUALITY_MATCHING_RULE.get(
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EMR_BOOLEAN_OID, SYNTAX_BOOLEAN_NAME));
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}
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}
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/**
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* Retrieves the common name for this attribute syntax.
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*
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* @return The common name for this attribute syntax.
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*/
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public String getSyntaxName()
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{
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return SYNTAX_BOOLEAN_NAME;
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}
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/**
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* Retrieves the OID for this attribute syntax.
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*
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* @return The OID for this attribute syntax.
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*/
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public String getOID()
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{
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return SYNTAX_BOOLEAN_OID;
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}
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/**
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* Retrieves a description for this attribute syntax.
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*
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* @return A description for this attribute syntax.
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*/
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public String getDescription()
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{
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return SYNTAX_BOOLEAN_DESCRIPTION;
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}
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/**
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* Retrieves the default equality matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default equality matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if equality
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* matches will not be allowed for this type by default.
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*/
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public EqualityMatchingRule getEqualityMatchingRule()
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{
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return defaultEqualityMatchingRule;
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}
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/**
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* Retrieves the default ordering matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default ordering matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if ordering
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* matches will not be allowed for this type by default.
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*/
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public OrderingMatchingRule getOrderingMatchingRule()
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{
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// Ordering matches are not allowed by default.
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return null;
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}
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/**
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* Retrieves the default substring matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default substring matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if substring
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* matches will not be allowed for this type by default.
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*/
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public SubstringMatchingRule getSubstringMatchingRule()
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{
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// Substring matches are not allowed by default.
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return null;
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}
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/**
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* Retrieves the default approximate matching rule that will be used for
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* attributes with this syntax.
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*
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* @return The default approximate matching rule that will be used for
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* attributes with this syntax, or <CODE>null</CODE> if approximate
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* matches will not be allowed for this type by default.
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*/
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public ApproximateMatchingRule getApproximateMatchingRule()
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{
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// Approximate matches are not allowed by default.
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return null;
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}
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/**
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* Indicates whether the provided value is acceptable for use in an attribute
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* with this syntax. If it is not, then the reason may be appended to the
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* 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 invalidReason The buffer to which the invalid reason should be
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* appended.
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*
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* @return <CODE>true</CODE> if the provided value is acceptable for use with
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* this syntax, or <CODE>false</CODE> if not.
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*/
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public boolean valueIsAcceptable(ByteString value,
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MessageBuilder invalidReason)
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{
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String valueString = value.stringValue().toUpperCase();
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boolean returnValue = (valueString.equals("TRUE") ||
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valueString.equals("YES") ||
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valueString.equals("ON") ||
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valueString.equals("1") ||
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valueString.equals("FALSE") ||
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valueString.equals("NO") ||
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valueString.equals("OFF") ||
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valueString.equals("0"));
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if (! returnValue)
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{
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invalidReason.append(WARN_ATTR_SYNTAX_ILLEGAL_BOOLEAN.get(
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value.stringValue()));
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}
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return returnValue;
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}
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/**
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* Retrieves an attribute value containing a representation of the provided
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* boolean value.
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*
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* @param b The boolean value for which to retrieve the attribute value.
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*
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* @return The attribute value created from the provided boolean value.
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*/
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public static AttributeValue createBooleanValue(boolean b)
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{
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if (b)
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{
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return new AttributeValue(new ASN1OctetString("TRUE"),
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new ASN1OctetString("TRUE"));
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}
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else
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{
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return new AttributeValue(new ASN1OctetString("FALSE"),
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new ASN1OctetString("FALSE"));
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}
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}
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/**
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* Decodes the provided normalized value as a boolean.
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*
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* @param normalizedValue The normalized value to decode as a boolean.
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*
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* @return The decoded boolean value.
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*
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* @throws DirectoryException If the provided value cannot be decoded as a
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* boolean.
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*/
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public static boolean decodeBooleanValue(ByteString normalizedValue)
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throws DirectoryException
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{
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String valueString = normalizedValue.stringValue();
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if (valueString.equals("TRUE"))
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{
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return true;
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}
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else if (valueString.equals("FALSE"))
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{
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return false;
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}
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else
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{
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Message message = WARN_ATTR_SYNTAX_ILLEGAL_BOOLEAN.get(valueString);
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message);
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}
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}
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}
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