| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.server.schema.registries; |
| |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.naming.NamingException; |
| import javax.naming.directory.NoSuchAttributeException; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.apache.directory.shared.asn1.primitives.OID; |
| import org.apache.directory.shared.ldap.util.StringTools; |
| |
| |
| /** |
| * Default OID registry implementation used to resolve a schema object OID |
| * to a name and vice-versa. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Rev$ |
| */ |
| public class DefaultOidRegistry implements OidRegistry |
| { |
| /** static class logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( DefaultOidRegistry.class ); |
| |
| /** Speedup for DEBUG mode */ |
| private static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| /** Maps OID to a name or a list of names if more than one name exists */ |
| private Map<String, List<String>> byOid = new HashMap<String, List<String>>(); |
| |
| /** Maps several names to an OID */ |
| private Map<String,String> byName = new HashMap<String,String>(); |
| |
| |
| /** |
| * @see org.apache.directory.server.schema.registries.OidRegistry#getOid(java.lang.String) |
| */ |
| public String getOid( String name ) throws NamingException |
| { |
| if ( StringTools.isEmpty( name ) ) |
| { |
| throw new NamingException( "name should not be empty" ); |
| } |
| |
| /* If name is an OID then we return it back since inherently the |
| * OID is another name for the object referred to by OID and the |
| * caller does not know that the argument is an OID String. |
| */ |
| if ( StringTools.isDigit( name.charAt( 0 ) ) ) |
| { |
| return name; |
| } |
| |
| // If name is mapped to a OID already return OID |
| if ( byName.containsKey( name ) ) |
| { |
| String oid = byName.get( name ); |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "looked up OID '" + oid + "' with id '" + name + "'" ); |
| } |
| |
| return oid; |
| } |
| |
| /* |
| * As a last resort we check if name is not normalized and if the |
| * normalized version used as a key returns an OID. If the normalized |
| * name works add the normalized name as a key with its OID to the |
| * byName lookup. BTW these normalized versions of the key are not |
| * returned on a getNameSet. |
| */ |
| String lowerCase = name.trim().toLowerCase(); |
| |
| String oid = byName.get( lowerCase ); |
| |
| if ( oid != null ) |
| { |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "looked up OID '" + oid + "' with id '" + name + "'" ); |
| } |
| |
| return oid; |
| } |
| |
| NamingException fault = new NoSuchAttributeException( "OID for name '" + name + "' was not " |
| + "found within the OID registry" ); |
| LOG.error( fault.getMessage() ); |
| throw fault; |
| } |
| |
| |
| /** |
| * @see org.apache.directory.server.schema.registries.OidRegistry#hasOid(java.lang.String) |
| */ |
| public boolean hasOid( String name ) |
| { |
| if ( StringTools.isEmpty( name ) ) |
| { |
| return false; |
| } |
| |
| String normalized = name.trim().toLowerCase(); |
| |
| return byName.containsKey( normalized ); |
| } |
| |
| |
| /** |
| * @see org.apache.directory.server.schema.registries.OidRegistry#getPrimaryName(java.lang.String) |
| */ |
| public String getPrimaryName( String oid ) throws NamingException |
| { |
| List<String> value = byOid.get( oid ); |
| |
| if ( null == value ) |
| { |
| throw new NamingException( "OID '" + oid + "' was not found within the OID registry" ); |
| } |
| |
| String name = value.get( 0 ); |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "looked up primary name '" + name + "' with OID '" + oid + "'" ); |
| } |
| |
| return name; |
| } |
| |
| |
| /** |
| * @see org.apache.directory.server.schema.registries.OidRegistry#getNameSet(java.lang.String) |
| */ |
| public List<String> getNameSet( String oid ) throws NamingException |
| { |
| List<String> value = byOid.get( oid ); |
| |
| if ( null == value ) |
| { |
| throw new NamingException( "OID '" + oid + "' was not found within the OID registry" ); |
| } |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "looked up names '" + value + "' for OID '" + oid + "'" ); |
| } |
| |
| return value; |
| } |
| |
| |
| /** |
| * @see org.apache.directory.server.schema.registries.OidRegistry#list() |
| */ |
| @SuppressWarnings("unchecked") |
| public Iterator list() |
| { |
| return Collections.unmodifiableSet( byOid.keySet() ).iterator(); |
| } |
| |
| |
| /** |
| * Get the map of all the oids by their name |
| * @return The Map that contains all the oids |
| */ |
| public Map<String, String> getOidByName() |
| { |
| return byName; |
| } |
| |
| |
| /** |
| * Get the map of all the oids by their name |
| * @return The Map that contains all the oids |
| */ |
| public Map<String, List<String>> getNameByOid() |
| { |
| return byOid; |
| } |
| |
| |
| /** |
| * @see org.apache.directory.server.schema.registries.OidRegistry#register(String, String) |
| */ |
| @SuppressWarnings("unchecked") |
| public void register( String name, String oid ) throws NamingException |
| { |
| if ( !OID.isOID( oid ) ) |
| { |
| String message = "Swap the parameter order: the oid " + |
| "does not start with a digit, or is not an OID!"; |
| |
| LOG.debug( message ); |
| throw new NamingException( message ); |
| } |
| |
| if ( StringTools.isEmpty( name ) ) |
| { |
| String message = "The name is empty"; |
| LOG.error( message ); |
| throw new NamingException( message ); |
| } |
| |
| /* |
| * Add the entry for the given name as is and its lowercased version if |
| * the lower cased name is different from the given name name. |
| */ |
| String lowerCase = name.trim().toLowerCase(); |
| |
| // Put both the name and the oid as names |
| byName.put( lowerCase, oid ); |
| byName.put( oid, oid ); |
| |
| /* |
| * Update OID Map |
| * |
| * 1). Check if we already have a value[s] stored |
| * 1a). Value is a single value and is a String |
| * Replace value with list containing old and new values |
| * 1b). More than one value stored in a list |
| * Add new value to the list |
| * 2). If we do not have a value then we just add it as a String |
| */ |
| List<String> value; |
| |
| if ( !byOid.containsKey( oid ) ) |
| { |
| value = new ArrayList<String>( 1 ); |
| value.add( lowerCase ); |
| } |
| else |
| { |
| value = byOid.get( oid ); |
| |
| if ( value.contains( lowerCase ) ) |
| { |
| return; |
| } |
| else |
| { |
| value.add( lowerCase ); |
| } |
| } |
| |
| byOid.put( oid, value ); |
| |
| if ( IS_DEBUG ) |
| { |
| LOG.debug( "registed name '" + name + "' with OID: " + oid ); |
| } |
| } |
| |
| |
| public void unregister( String numericOid ) throws NamingException |
| { |
| // First, remove the <OID, names> from the byOID map |
| List<String> names = byOid.remove( numericOid ); |
| |
| // Then remove all the <name, OID> from the byName map |
| if ( names != null ) |
| { |
| for ( String name:names ) |
| { |
| byName.remove( name ); |
| } |
| } |
| |
| // Last, remove the <OID, OID> from the byName map |
| byName.remove( numericOid ); |
| } |
| } |