Package netscape.ldap

Class LDAPSchema

java.lang.Object
netscape.ldap.LDAPSchema
All Implemented Interfaces:
Serializable
public class LDAPSchema extends Object implements Serializable
This object represents the schema of an LDAP v3 server. You can use the fetchSchema method to retrieve the schema used by a server. (The server must support LDAP v3 and the capability to retrieve the schema over the LDAP protocol.)

After you retrieve the schema, you can use this object to get the object class, attribute type, and matching rule descriptions in the schema. You can also add your own object classes, attribute types, and matching rules to the schema.

To remove any object classes, attribute types, and matching rules that you added, call the remove methods of the LDAPObjectClassSchema, LDAPAttributeSchema, and LDAPMatchingRuleSchema classes. (This method is inherited from the LDAPSchemaElement class.)

The following class is an example of an LDAP client that can fetch the schema, get and print object class descriptions and attribute type descriptions, and add object classes and attribute types to the schema over the LDAP protocol. 

 import netscape.ldap.*;
 public class TestSchema {
     public static void main( String[] args ) {
         String HOSTNAME = "ldap.netscape.com";
         int PORT_NUMBER = DEFAULT_PORT;
         String ROOT_DN = "cn=Directory Manager";
         String ROOT_PASSWORD = "23skidoo";

         LDAPConnection ld = new LDAPConnection();

         // Construct a new LDAPSchema object to get the schema.
         LDAPSchema dirSchema = new LDAPSchema();

         try {
             // Connect to the server.
             ld.connect( HOSTNAME, PORT_NUMBER );

             // Get the schema from the directory.
             dirSchema.fetchSchema( ld );

             // Get and print the inetOrgPerson object class description.
             LDAPObjectClassSchema objClass = dirSchema.getObjectClass(
                 "inetOrgPerson" );
             if ( objClass != null ) {
                 System.out.println("inetOrgPerson := "+objClass.toString());
             }

             // Get and print the definition of the userPassword attribute.
             LDAPAttributeSchema attrType = dirSchema.getAttribute(
                 "userpassword" );
             if ( attrType != null ) {
                 System.out.println("userPassword := " + attrType.toString());
             }

             // Create a new object class definition.
             String[] requiredAttrs = {"cn", "mail"};
             String[] optionalAttrs = {"sn", "phoneNumber"};
             LDAPObjectClassSchema newObjClass =
                     new LDAPObjectClassSchema( "newInetOrgPerson",
                                                "1.2.3.4.5.6.7",
                                                "top",
                                                "Experiment",
                                                requiredAttrs,
                                                optionalAttrs );

             // Authenticate as root DN to get permissions to edit the schema.
             ld.authenticate( ROOT_DN, ROOT_PASSWORD );

             // Add the new object class to the schema.
             newObjClass.add( ld );

             // Create a new attribute type "hairColor".
             LDAPAttributeSchema newAttrType =
                     new LDAPAttributeSchema( "hairColor",
                                              "1.2.3.4.5.4.3.2.1",
                                              "Blonde, red, etc",
                                              LDAPAttributeSchema.cis,
                                              false );
             // Add a custom qualifier
             newObjClass.setQualifier( "X-OWNER", "John Jacobson" );

             // Add the new attribute type to the schema.
             newAttrType.add( ld );

             // Fetch the schema again to verify that changes were made.
             dirSchema.fetchSchema( ld );

             // Get and print the new attribute type.
             newAttrType = dirSchema.getAttribute( "hairColor" );
             if ( newAttrType != null ) {
                 System.out.println("hairColor := " + newAttrType.toString());
             }

             // Get and print the new object class.
             newObjClass = dirSchema.getObjectClass( "newInetOrgPerson" );
             if ( newObjClass != null ) {
                 System.out.println("newInetOrgPerson := " +newObjClass.toString());
             }

             ld.disconnect();

         } catch ( Exception e ) {
             System.err.println( e.toString() );
             System.exit( 1 );
         }

         System.exit( 0 );
     }
 }
If you are using the Netscape Directory Server 3.0, you can also verify that the class and attribute type have been added through the directory server manager (go to Schema | Edit or View Attributes or Schema | Edit or View Object Classes).

To remove the classes and attribute types added by the example, see the examples under the LDAPSchemaElement class.

Version:
1.0
See Also:

  • Field Details

  • Constructor Details

    • LDAPSchema

      public LDAPSchema()
      Constructs a new LDAPSchema object. Once you construct the object, you can get the schema by calling fetchSchema.

      You can also print out the schema by using the main method. For example, you can enter the following command: 

       java netscape.ldap.LDAPSchema myhost.mydomain.com 389
      Note that you need to call fetchSchema to get the schema from the server. Constructing the object does not fetch the schema.

      See Also:

    • LDAPSchema

      public LDAPSchema(LDAPEntry entry)

  • Method Details

    • addObjectClass

      public void addObjectClass(LDAPObjectClassSchema objectSchema)
      Adds an object class schema definition to the current schema. You can also add object class schema definitions by calling the add method of your newly constructed LDAPObjectClassSchema object.

      To remove an object class schema definition that you have added, call the getObjectClass method to get the LDAPObjectClassSchema object representing your object class and call the remove method.

      NOTE: For information on the add and remove methods of LDAPObjectClassSchema, see the documentation for LDAPSchemaElement. (These methods are inherited from LDAPSchemaElement.)

      Parameters:
      objectSchema - LDAPObjectClassSchema object representing the object class schema definition to add
      See Also:

    • addAttribute

      public void addAttribute(LDAPAttributeSchema attrSchema)
      Add an attribute type schema definition to the current schema. You can also add attribute type schema definitions by calling the add method of your newly constructed LDAPAttributeSchema object.

      To remove an attribute type schema definition that you have added, call the getAttribute method to get the LDAPAttributeSchema object representing your attribute type and call the remove method.

      NOTE: For information on the add and remove methods of LDAPAttributeSchema, see the documentation for LDAPSchemaElement. (These methods are inherited from LDAPSchemaElement.)

      Parameters:
      attrSchema - LDAPAttributeSchema object representing the attribute type schema definition to add
      See Also:

    • addMatchingRule

      public void addMatchingRule(LDAPMatchingRuleSchema matchSchema)
      Add a matching rule schema definition to the current schema. You can also add matching rule schema definitions by calling the add method of your newly constructed LDAPMatchingRuleSchema object.

      To remove an attribute type schema definition that you have added, call the getMatchingRule method to get the LDAPMatchingRuleSchema object representing your matching rule and call the remove method.

      NOTE: For information on the add and remove methods of LDAPMatchingRuleSchema, see the documentation for LDAPSchemaElement. (These methods are inherited from LDAPSchemaElement.)

      Parameters:
      matchSchema - LDAPMatchingRuleSchema object representing the matching rule schema definition to add
      See Also:

    • addSyntax

      public void addSyntax(LDAPSyntaxSchema syntaxSchema)
      Add a syntax schema definition to the current schema. You can also add syntax schema definitions by calling the add method of your newly constructed LDAPSyntaxSchema object.

      To remove a syntax schema definition that you have added, call the getSyntax method to get the LDAPSyntaxSchema object representing your syntax type and call the remove method.

      NOTE: For information on the add and remove methods of LDAPSyntaxSchema, see the documentation for LDAPSchemaElement. (These methods are inherited from LDAPSchemaElement.)

      Parameters:
      syntaxSchema - LDAPSyntaxSchema object representing the syntax schema definition to add
      See Also:

    • addDITStructureRule

      public void addDITStructureRule(LDAPDITStructureRuleSchema rule)
      Add a structure rule definition to the current schema. You can also add structure rule definitions by calling the add method of your newly constructed LDAPDITStructureRuleSchema object.

      To remove a structure rule definition that you have added, call the getDITStructureRule method to get the LDAPDITStructureRuleSchema object representing your rule and call the remove method.

      NOTE: For information on the add and remove methods of LDAPSyntaxSchema, see the documentation for LDAPSchemaElement. (These methods are inherited from LDAPSchemaElement.)

      Parameters:
      rule - LDAPDITStructureRuleSchema object representing the structure rule definition to add
      See Also:

    • addDITContentRule

      public void addDITContentRule(LDAPDITContentRuleSchema rule)
      Add a content rule definition to the current schema. You can also add content rule definitions by calling the add method of your newly constructed LDAPDITContentRuleSchema object.

      To remove a content rule definition that you have added, call the getDITContentRule method to get the LDAPDITContentRuleSchema object representing your rule and call the remove method.

      NOTE: For information on the add and remove methods of LDAPSyntaxSchema, see the documentation for LDAPSchemaElement. (These methods are inherited from LDAPSchemaElement.)

      Parameters:
      rule - LDAPDITContentRuleSchema object representing the content rule definition to add
      See Also:

    • addNameForm

      public void addNameForm(LDAPNameFormSchema nameForm)
      Add a name form definition to the current schema. You can also add name form definitions by calling the add method of your newly constructed LDAPNameFormSchema object.

      To remove a name form definition that you have added, call the getNameForm method to get the LDAPNameFormSchema object representing your nameForm type and call the remove method.

      NOTE: For information on the add and remove methods of LDAPNameFormSchema, see the documentation for LDAPSchemaElement. (These methods are inherited from LDAPSchemaElement.)

      Parameters:
      nameForm - LDAPNameFormSchema object representing the name form definition to add
      See Also:

    • getObjectClasses

      public Enumeration<LDAPObjectClassSchema> getObjectClasses()
      Gets an enumeration ofthe object class definitions in this schema.
      Returns:
      an enumeration of object class definitions.

    • getAttributes

      public Enumeration<LDAPAttributeSchema> getAttributes()
      Gets an enumeration ofthe attribute type definitions in this schema.
      Returns:
      an enumeration of attribute type definitions.

    • getMatchingRules

      public Enumeration<LDAPMatchingRuleSchema> getMatchingRules()
      Gets an enumeration ofthe matching rule definitions in this schema.
      Returns:
      an enumeration of matching rule definitions.

    • getSyntaxes

      public Enumeration<LDAPSyntaxSchema> getSyntaxes()
      Get an enumeration of the syntaxes in this schema.
      Returns:
      an enumeration of syntax objects

    • getDITStructureRules

      public Enumeration<LDAPDITStructureRuleSchema> getDITStructureRules()
      Get an enumeration of the structure rules in this schema.
      Returns:
      an enumeration of structure rule objects

    • getDITContentRules

      public Enumeration<LDAPDITContentRuleSchema> getDITContentRules()
      Get an enumeration of the content rules in this schema.
      Returns:
      an enumeration of content rule objects

    • getNameForms

      public Enumeration<LDAPNameFormSchema> getNameForms()
      Get an enumeration of the name forms in this schema.
      Returns:
      an enumeration of name form objects

    • getObjectClass

      public LDAPObjectClassSchema getObjectClass(String name)
      Gets the definition of the object class with the specified name.
      Parameters:
      name - name of the object class to find
      Returns:
      an LDAPObjectClassSchema object representing the object class definition, or null if not found.

    • getAttribute

      public LDAPAttributeSchema getAttribute(String name)
      Gets the definition of the attribute type with the specified name.
      Parameters:
      name - name of the attribute type to find
      Returns:
      an LDAPAttributeSchema object representing the attribute type definition, or null if not found.

    • getMatchingRule

      public LDAPMatchingRuleSchema getMatchingRule(String name)
      Gets the definition of a matching rule with the specified name.
      Parameters:
      name - name of the matching rule to find
      Returns:
      an LDAPMatchingRuleSchema object representing the matching rule definition, or null if not found.

    • getSyntax

      public LDAPSyntaxSchema getSyntax(String name)
      Gets the definition of a syntax with the specified name.
      Parameters:
      name - name of the syntax to find
      Returns:
      an LDAPSyntaxSchema object representing the syntax definition, or null if not found.

    • getDITStructureRule

      public LDAPDITStructureRuleSchema getDITStructureRule(String name)
      Gets the definition of a structure rule with the specified name.
      Parameters:
      name - name of the rule to find
      Returns:
      an LDAPDITStructureRuleSchema object representing the rule, or null if not found.

    • getDITStructureRule

      public LDAPDITStructureRuleSchema getDITStructureRule(int ID)
      Gets the definition of a structure rule with the specified name.
      Parameters:
      ID - ID of the rule to find
      Returns:
      an LDAPDITStructureRuleSchema object representing the rule, or null if not found.

    • getDITContentRule

      public LDAPDITContentRuleSchema getDITContentRule(String name)
      Gets the definition of a content rule with the specified name.
      Parameters:
      name - name of the rule to find
      Returns:
      an LDAPDITContentRuleSchema object representing the rule, or null if not found.

    • getNameForm

      public LDAPNameFormSchema getNameForm(String name)
      Gets the definition of a name form with the specified name.
      Parameters:
      name - name of the name form to find
      Returns:
      an LDAPNameFormSchema object representing the syntax definition, or null if not found.

    • getObjectClassNames

      public Enumeration<String> getObjectClassNames()
      Get an enumeration of the names of the object classes in this schema.
      Returns:
      an enumeration of object class names (all lower-case).

    • getAttributeNames

      public Enumeration<String> getAttributeNames()
      Get an enumeration of the names of the attribute types in this schema.
      Returns:
      an enumeration of attribute names (all lower-case).

    • getMatchingRuleNames

      public Enumeration<String> getMatchingRuleNames()
      Get an enumeration of the names of the matching rules in this schema.
      Returns:
      an enumeration of matching rule names (all lower-case).

    • getSyntaxNames

      public Enumeration<String> getSyntaxNames()
      Get an enumeration of the names of the syntaxes in this schema.
      Returns:
      an enumeration of syntax names (all lower-case).

    • getDITStructureRuleNames

      public Enumeration<String> getDITStructureRuleNames()
      Get an enumeration of the names of the structure rules in this schema.
      Returns:
      an enumeration of names of the structure rule objects

    • getDITContentRuleNames

      public Enumeration<String> getDITContentRuleNames()
      Get an enumeration of the names of the content rules in this schema.
      Returns:
      an enumeration of names of the content rule objects

    • getNameFormNames

      public Enumeration<String> getNameFormNames()
      Get an enumeration of the names of the name forms in this schema.
      Returns:
      an enumeration of names of name form objects

    • fetchSchema

      public void fetchSchema(LDAPConnection ld, String dn) throws LDAPException
      Retrieve the schema for a specific entry.
      Parameters:
      ld - an active connection to a Directory Server
      dn - the entry for which to fetch schema
      Throws:
      LDAPException - on failure.

    • initialize

      protected void initialize(LDAPEntry entry)
      Extract all schema elements from subschema entry
      Parameters:
      entry - entry containing schema definitions

    • fetchSchema

      public void fetchSchema(LDAPConnection ld) throws LDAPException
      Retrieve the entire schema from the root of a Directory Server.
      Parameters:
      ld - an active connection to a Directory Server
      Throws:
      LDAPException - on failure.

    • isAttributeSyntaxStandardsCompliant

      static boolean isAttributeSyntaxStandardsCompliant(LDAPConnection ld) throws LDAPException
      Read one attribute definition from a server to determine if attribute syntaxes are quoted (a bug, present in Netscape and Novell servers).
      Parameters:
      ld - an active connection to a Directory Server
      Returns:
      true if standards-compliant.
      Throws:
      LDAPException - on failure.

    • isSyntaxQuoted

      static boolean isSyntaxQuoted(String raw)
      Parses an attribute schema definition to see if the SYNTAX value is quoted. It shouldn't be (according to RFC 2252), but it is for some LDAP servers. It will either be:
      SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 or
      SYNTAX '1.3.6.1.4.1.1466.115.121.1.15'
      Parameters:
      raw - Definition of the attribute type in the AttributeTypeDescription format.

    • toString

      public String toString()
      Displays the schema (including the descriptions of its object classes, attribute types, and matching rules) in an easily readable format (not the same as the format expected by an LDAP server).
      Overrides:
      toString in class Object
      Returns:
      a string containing the schema in printable format.

    • getSchemaDN

      static String getSchemaDN(LDAPConnection ld, String dn) throws LDAPException
      Retrieve the DN of the schema definitions for a specific entry.
      Parameters:
      ld - an active connection to a Directory Server
      dn - the entry for which to fetch schema
      Throws:
      LDAPException - on failure.

    • readSchema

      private static LDAPEntry readSchema(LDAPConnection ld, String dn, String[] attrs) throws LDAPException
      Throws:
      LDAPException

    • readSchema

      private static LDAPEntry readSchema(LDAPConnection ld, String dn) throws LDAPException
      Throws:
      LDAPException

    • printEnum

      private static void printEnum(Enumeration<? extends LDAPSchemaElement> en)
      Helper for "main" to print out schema elements.
      Parameters:
      en - enumeration of schema elements

    • main

      public static void main(String[] args)
      Fetch the schema from the LDAP server at the specified host and port, and print out the schema (including descriptions of its object classes, attribute types, and matching rules). The schema is printed in an easily readable format (not the same as the format expected by an LDAP server). For example, you can enter the following command to print the schema: 
       java netscape.ldap.LDAPSchema myhost.mydomain.com 389
      Parameters:
      args - the host name and the port number of the LDAP server (for example, netscape.ldap.LDAPSchema directory.netscape.com 389)