gecko-dev/directory/java-sdk/ldapjdk/netscape/ldap/LDAPMatchingRuleSchema.java
2000-05-06 19:36:18 +00:00

381 lines
15 KiB
Java

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
package netscape.ldap;
import java.util.*;
/**
* The definition of a matching rule in the schema.
* <A HREF="http://ds.internic.net/rfc/rfc2252.txt"
* TARGET="_blank">RFC 2252, Lightweight Directory Access Protocol (v3):
* Attribute Syntax Definitions</A> covers the types of information
* that need to be specified in the definition of a matching rule.
* According to the RFC, the description of a matching rule can
* include the following information:
* <P>
*
* <UL>
* <LI>an OID identifying the matching rule
* <LI>a name identifying the matching rule
* <LI>a description of the matching rule
* <LI>the syntax of the matching rule
* </UL>
* <P>
*
* The <CODE>LDAPMatchingRuleSchema</CODE> class also specifies
* the matching rule "use description", which describes the
* attributes which can be used with the matching rule.
* <P>
*
* When you construct an <CODE>LDAPMatchingRuleSchema</CODE> object, you can
* specify these types of information as arguments to the constructor or
* in the MatchingRuleDescription and MatchingRuleUseDescription formats
* specified in RFC 2252.
* When an LDAP client searches an LDAP server for the schema, the server
* returns schema information as an object with attribute values in this
* format.
* <P>
*
* You can get the name, OID, and description of this matching rule
* definition by using the <CODE>getName</CODE>, <CODE>getOID</CODE>, and
* <CODE>getDescription</CODE> methods inherited from the abstract class
* <CODE>LDAPSchemaElement</CODE>. Custom qualifiers are
* accessed with <CODE>getQualifier</CODE> and <CODE>getQualifierNames</CODE>
* from <CODE>LDAPSchemaElement</CODE>.
* <P>
*
* To add or remove this matching rule definition from the
* schema, use the <CODE>add</CODE> and <CODE>remove</CODE>
* methods, which this class inherits from the <CODE>LDAPSchemaElement</CODE>
* abstract class.
* <P>
* RFC 2252 defines MatchingRuleDescription and MatchingRuleUseDescription
* as follows:
* <P>
* <PRE>
* MatchingRuleDescription = "(" whsp
* numericoid whsp ; MatchingRule identifier
* [ "NAME" qdescrs ]
* [ "DESC" qdstring ]
* [ "OBSOLETE" whsp ]
* "SYNTAX" numericoid
* whsp ")"
*
* Values of the matchingRuleUse list the attributes which are suitable
* for use with an extensible matching rule.
*
* MatchingRuleUseDescription = "(" whsp
* numericoid whsp ; MatchingRule identifier
* [ "NAME" qdescrs ]
* [ "DESC" qdstring ]
* [ "OBSOLETE" ]
* "APPLIES" oids ; AttributeType identifiers
* whsp ")"
* </PRE>
* <P>
* <CODE>LDAPMatchingRuleSchema</CODE> abstracts away from the two types and
* manages their relationships transparently.
*
* @version 1.0
* @see netscape.ldap.LDAPSchemaElement
**/
public class LDAPMatchingRuleSchema extends LDAPAttributeSchema {
static final long serialVersionUID = 6466155218986944131L;
/**
* Constructs a matching rule definition, using the specified
* information.
* @param name name of the matching rule
* @param oid object identifier (OID) of the matching rule
* in dotted-decimal format (for example, "1.2.3.4")
* @param description description of the matching rule
* @param attributes array of the OIDs of the attributes for which
* the matching rule is applicable
* @param syntax syntax of this matching rule. The value of this
* argument can be one of the following:
* <UL>
* <LI><CODE>cis</CODE> (case-insensitive string)
* <LI><CODE>ces</CODE> (case-exact string)
* <LI><CODE>binary</CODE> (binary data)
* <LI><CODE>int</CODE> (integer)
* <LI><CODE>telephone</CODE> (telephone number -- identical to cis,
* but blanks and dashes are ignored during comparisons)
* <LI><CODE>dn</CODE> (distinguished name)
* </UL>
*/
public LDAPMatchingRuleSchema( String name, String oid,
String description,
String[] attributes, int syntax ) {
this( name, oid, description, attributes, cisString );
syntaxElement.syntax = syntax;
String syntaxType = syntaxElement.internalSyntaxToString( syntax );
if ( syntaxType != null ) {
syntaxElement.syntaxString = syntaxType;
}
setQualifier( SYNTAX, syntaxElement.syntaxString );
}
/**
* Constructs a matching rule definition, using the specified
* information.
* @param name name of the matching rule.
* @param oid object identifier (OID) of the matching rule
* in dotted-decimal format (for example, "1.2.3.4").
* @param description description of the matching rule.
* @param attributes array of the OIDs of the attributes for which
* the matching rule is applicable.
* @param syntaxString syntax of this matching rule in dotted-decimal
* format
*/
public LDAPMatchingRuleSchema( String name, String oid,
String description,
String[] attributes,
String syntaxString ) {
this( name, oid, description, attributes, syntaxString, null );
}
/**
* Constructs a matching rule definition, using the specified
* information.
* @param name name of the matching rule.
* @param oid object identifier (OID) of the matching rule
* in dotted-decimal format (for example, "1.2.3.4").
* @param description description of the matching rule.
* @param attributes array of the OIDs of the attributes for which
* the matching rule is applicable.
* @param syntaxString syntax of this matching rule in dotted-decimal
* format
* @param aliases names which are to be considered aliases for this
* matching rule; <CODE>null</CODE> if there are no aliases
*/
public LDAPMatchingRuleSchema( String name, String oid,
String description,
String[] attributes,
String syntaxString,
String[] aliases ) {
if ( (oid == null) || (oid.trim().length() < 1) ) {
throw new IllegalArgumentException( "OID required" );
}
this.name = name;
this.oid = oid;
this.description = description;
attrName = "matchingrules";
syntaxElement.syntax = syntaxElement.syntaxCheck( syntaxString );
syntaxElement.syntaxString = syntaxString;
setQualifier( SYNTAX, syntaxElement.syntaxString );
this.attributes = new String[attributes.length];
for( int i = 0; i < attributes.length; i++ ) {
this.attributes[i] = attributes[i];
}
if ( (aliases != null) && (aliases.length > 0) ) {
this.aliases = aliases;
}
}
/**
* Constructs a matching rule definition based on descriptions in
* the MatchingRuleDescription format and MatchingRuleUseDescription
* format. For information on this format,
* (see <A HREF="http://ds.internic.net/rfc/rfc2252.txt"
* TARGET="_blank">RFC 2252, Lightweight Directory Access Protocol (v3):
* Attribute Syntax Definitions</A>. This is the format that LDAP servers
* and clients use to exchange schema information. For example, when
* you search an LDAP server for its schema, the server returns an entry
* with attributes that include "matchingrule" and "matchingruleuse".
* The values of these attributes are matching rule descriptions
* in this format.
* <P>
*
* @param raw definition of the matching rule in the
* MatchingRuleDescription format
* @param use definition of the use of the matching rule in the
* MatchingRuleUseDescription format
*/
public LDAPMatchingRuleSchema( String raw, String use ) {
attrName = "matchingrules";
if ( raw != null ) {
parseValue( raw );
}
if ( use != null ) {
parseValue( use );
}
Vector v = (Vector)properties.get( "APPLIES" );
if ( v != null ) {
attributes = new String[v.size()];
v.copyInto( attributes );
v.removeAllElements();
}
String val = (String)properties.get( "SYNTAX" );
if ( val != null ) {
syntaxElement.syntaxString = val;
syntaxElement.syntax = syntaxElement.syntaxCheck( val );
}
}
/**
* Gets the list of the OIDs of the attribute types which can be used
* with the matching rule.
* @return array of the OIDs of the attribute types which can be used
* with the matching rule.
*/
public String[] getAttributes() {
return attributes;
}
/**
* Prepare a value in RFC 2252 format for submitting to a server
*
* @param quotingBug <CODE>true</CODE> if SUP and SYNTAX values are to
* be quoted; that is to satisfy bugs in certain LDAP servers.
* @return a String ready to be submitted to an LDAP server
*/
String getValue( boolean quotingBug ) {
String s = getValuePrefix();
if ( syntaxElement.syntaxString != null ) {
s += "SYNTAX ";
if ( quotingBug ) {
s += '\'';
}
s += syntaxElement.syntaxString;
if ( quotingBug ) {
s += '\'';
}
s += ' ';
}
String val = getCustomValues();
if ( val.length() > 0 ) {
s += val + ' ';
}
s += ')';
return s;
}
/**
* Gets the matching rule definition in the string representation
* of the MatchingRuleDescription data type defined in X.501 (see
* <A HREF="http://ds.internic.net/rfc/rfc2252.txt"
* TARGET="_blank">RFC 2252, Lightweight Directory Access Protocol
* (v3): Attribute Syntax Definitions</A>
* for a description of these formats).
* This is the format that LDAP servers and clients use to exchange
* schema information. (For example, when
* you search an LDAP server for its schema, the server returns an entry
* with the attributes "matchingrules" and "matchingruleuse". The
* values of these attributes are matching rule description and
* matching rule use description in these formats.)
* <P>
*
* @return a string in a format that can be used as the value of
* the <CODE>matchingrule</CODE> attribute (which describes
* a matching rule in the schema) of a <CODE>subschema</CODE> object
*/
public String getValue() {
return getValue( false );
}
/**
* Gets the matching rule use definition in the string representation
* of the MatchingRuleUseDescription data type defined in X.501 (see
* <A HREF="http://ds.internic.net/rfc/rfc2252.txt"
* TARGET="_blank">RFC 2252, Lightweight Directory Access Protocol
* (v3): Attribute Syntax Definitions</A>
* for a description of these formats).
* This is the format that LDAP servers and clients use to exchange
* schema information. (For example, when
* you search an LDAP server for its schema, the server returns an entry
* with the attributes "matchingrules" and "matchingruleuse". The
* values of these attributes are matching rule description and
* matching rule use description in these formats.)
* <P>
*
* @return a string in a format that can be used as the value of
* the <CODE>matchingruleuse</CODE> attribute (which describes the use of
* a matching rule in the schema) of a <CODE>subschema</CODE> object
*/
public String getUseValue() {
String s = getValuePrefix();
if ( (attributes != null) && (attributes.length > 0) ) {
s += "APPLIES ( ";
for( int i = 0; i < attributes.length; i++ ) {
if ( i > 0 )
s += " $ ";
s += attributes[i];
}
s += " ) ";
}
s += ')';
return s;
}
/**
* Adds, removes or modifies the definition from a Directory.
* @param ld an open connection to a Directory Server. Typically the
* connection must have been authenticated to add a definition.
* @param op type of modification to make
* @param name name of attribute in the schema entry to modify. This
* is ignored here.
* @param dn the entry at which to update the schema
* @exception LDAPException if the definition can't be added/removed
*/
protected void update( LDAPConnection ld, int op, String name, String dn )
throws LDAPException {
LDAPAttribute[] attrs = new LDAPAttribute[2];
attrs[0] = new LDAPAttribute( "matchingRules",
getValue() );
/* Must update the matchingRuleUse value as well */
attrs[1] = new LDAPAttribute( "matchingRuleUse",
getUseValue() );
update( ld, op, attrs, dn );
}
/**
* Gets the definition of the matching rule in a user friendly format.
* This is the format that the matching rule definition uses when
* you print the matching rule or the schema.
* @return definition of the matching rule in a user friendly format.
*/
public String toString() {
String s = "Name: " + name + "; OID: " + oid + "; Type: ";
s += syntaxElement.syntaxToString();
s += "; Description: " + description;
if ( attributes != null ) {
s += "; Applies to: ";
for( int i = 0; i < attributes.length; i++ ) {
if ( i > 0 )
s += ", ";
s += attributes[i];
}
}
s += getQualifierString( EXPLICIT );
s += getAliasString();
return s;
}
// Qualifiers tracked explicitly
static final String[] EXPLICIT = { OBSOLETE,
SYNTAX };
private String[] attributes = null;
}