| /* DirectoryManager.java -- |
| Copyright (C) 2000, 2001, 2004, 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package javax.naming.spi; |
| |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| import java.util.StringTokenizer; |
| |
| import javax.naming.CannotProceedException; |
| import javax.naming.Context; |
| import javax.naming.Name; |
| import javax.naming.NamingException; |
| import javax.naming.RefAddr; |
| import javax.naming.Reference; |
| import javax.naming.Referenceable; |
| import javax.naming.StringRefAddr; |
| import javax.naming.directory.Attributes; |
| import javax.naming.directory.DirContext; |
| |
| /** |
| * @author Tom Tromey (tromey@redhat.com) |
| * @date June 25, 2001 |
| */ |
| public class DirectoryManager extends NamingManager |
| { |
| // Can't instantiate this class. |
| DirectoryManager () |
| { |
| } |
| |
| public static DirContext getContinuationDirContext (CannotProceedException c) |
| throws NamingException |
| { |
| return (DirContext) getContinuationContext (c); |
| } |
| |
| // Try to create an object using the factory. Return null on |
| // failure. |
| private static Object tryCreateObject (ObjectFactory factory, |
| Object refInfo, |
| Name name, |
| Context nameCtx, |
| Hashtable environment, |
| Attributes attrs) |
| throws Exception |
| { |
| if (factory instanceof DirObjectFactory) |
| { |
| DirObjectFactory dof = (DirObjectFactory) factory; |
| return dof.getObjectInstance (refInfo, name, nameCtx, |
| environment, attrs); |
| } |
| else |
| return factory.getObjectInstance (refInfo, name, nameCtx, |
| environment); |
| } |
| |
| public static Object getObjectInstance (Object refInfo, Name name, |
| Context nameCtx, |
| Hashtable environment, |
| Attributes attrs) |
| throws Exception |
| { |
| ObjectFactory factory = null; |
| |
| if (ofb != null) |
| factory = ofb.createObjectFactory (refInfo, environment); |
| else |
| { |
| // First see if we have a Reference or a Referenceable. If so |
| // we do some special processing. |
| Object ref2 = refInfo; |
| if (refInfo instanceof Referenceable) |
| ref2 = ((Referenceable) refInfo).getReference (); |
| if (ref2 instanceof Reference) |
| { |
| Reference ref = (Reference) ref2; |
| |
| // If we have a factory class name then we use that. |
| String fClass = ref.getFactoryClassName (); |
| if (fClass != null) |
| { |
| // Exceptions here are passed to the caller. |
| Class k = Class.forName (fClass); |
| factory = (ObjectFactory) k.newInstance (); |
| } |
| else |
| { |
| // There's no factory class name. If the address is a |
| // StringRefAddr with address type `URL', then we try |
| // the URL's context factory. |
| Enumeration e = ref.getAll (); |
| while (e.hasMoreElements ()) |
| { |
| RefAddr ra = (RefAddr) e.nextElement (); |
| if (ra instanceof StringRefAddr |
| && "URL".equals (ra.getType ())) |
| { |
| factory |
| = (ObjectFactory) getURLContext (refInfo, |
| name, |
| nameCtx, |
| (String) ra.getContent (), |
| environment); |
| Object obj = tryCreateObject (factory, |
| refInfo, |
| name, |
| nameCtx, |
| environment, |
| attrs); |
| if (obj != null) |
| return obj; |
| } |
| } |
| |
| // Have to try the next step. |
| factory = null; |
| } |
| } |
| |
| // Now look at OBJECT_FACTORIES to find the factory. |
| if (factory == null) |
| { |
| StringTokenizer tokens = getPlusPath (Context.OBJECT_FACTORIES, |
| environment, nameCtx); |
| |
| while (tokens.hasMoreTokens ()) |
| { |
| String klassName = tokens.nextToken (); |
| Class k = Class.forName (klassName); |
| factory = (ObjectFactory) k.newInstance (); |
| Object obj = tryCreateObject (factory, refInfo, name, |
| nameCtx, environment, attrs); |
| if (obj != null) |
| return obj; |
| } |
| |
| // Failure. |
| return refInfo; |
| } |
| } |
| |
| if (factory == null) |
| return refInfo; |
| Object obj = tryCreateObject (factory, refInfo, name, |
| nameCtx, environment, attrs); |
| return obj == null ? refInfo : obj; |
| } |
| |
| public static DirStateFactory.Result getStateToBind (Object obj, |
| Name name, |
| Context nameCtx, |
| Hashtable environment, |
| Attributes attrs) |
| throws NamingException |
| { |
| StringTokenizer tokens = getPlusPath (Context.STATE_FACTORIES, |
| environment, nameCtx); |
| while (tokens.hasMoreTokens ()) |
| { |
| String klassName = tokens.nextToken (); |
| try |
| { |
| Class k = Class.forName (klassName); |
| StateFactory factory = (StateFactory) k.newInstance (); |
| |
| DirStateFactory.Result result = null; |
| if (factory instanceof DirStateFactory) |
| { |
| DirStateFactory dsf = (DirStateFactory) factory; |
| result = dsf.getStateToBind (obj, name, nameCtx, environment, |
| attrs); |
| } |
| else |
| { |
| Object o = factory.getStateToBind (obj, name, nameCtx, |
| environment); |
| if (o != null) |
| result = new DirStateFactory.Result (o, attrs); |
| } |
| if (result != null) |
| return result; |
| } |
| catch (ClassNotFoundException _1) |
| { |
| // Ignore it. |
| } |
| catch (ClassCastException _2) |
| { |
| // This means that the class we found was not an |
| // ObjectFactory or that the factory returned something |
| // which was not a Context. |
| } |
| catch (InstantiationException _3) |
| { |
| // If we couldn't instantiate the factory we might get |
| // this. |
| } |
| catch (IllegalAccessException _4) |
| { |
| // Another possibility when instantiating. |
| } |
| } |
| |
| return new DirStateFactory.Result (obj, attrs); |
| } |
| } |