diff options
Diffstat (limited to 'libjava/classpath/javax/naming/spi/DirectoryManager.java')
| -rw-r--r-- | libjava/classpath/javax/naming/spi/DirectoryManager.java | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/libjava/classpath/javax/naming/spi/DirectoryManager.java b/libjava/classpath/javax/naming/spi/DirectoryManager.java new file mode 100644 index 00000000000..fd482efb5c6 --- /dev/null +++ b/libjava/classpath/javax/naming/spi/DirectoryManager.java @@ -0,0 +1,243 @@ +/* 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., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 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); + } +} |
