| /* |
| * Copyright 1999,2004 The Apache Software Foundation. |
| * |
| * Licensed 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.naming; |
| |
| import java.util.Iterator; |
| |
| import javax.naming.Binding; |
| import javax.naming.CompositeName; |
| import javax.naming.Context; |
| import javax.naming.NamingEnumeration; |
| import javax.naming.NamingException; |
| |
| /** |
| * Naming enumeration implementation. |
| * |
| * @author Remy Maucherat |
| * @version $Revision$ $Date$ |
| */ |
| |
| public class NamingContextBindingsEnumeration |
| implements NamingEnumeration { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| public NamingContextBindingsEnumeration(Iterator entries, Context ctx) { |
| iterator = entries; |
| this.ctx = ctx; |
| } |
| |
| // -------------------------------------------------------------- Variables |
| |
| |
| /** |
| * Underlying enumeration. |
| */ |
| protected Iterator iterator; |
| |
| |
| /** |
| * The context for which this enumeration is being generated. |
| */ |
| private Context ctx; |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Retrieves the next element in the enumeration. |
| */ |
| public Object next() |
| throws NamingException { |
| return nextElementInternal(); |
| } |
| |
| |
| /** |
| * Determines whether there are any more elements in the enumeration. |
| */ |
| public boolean hasMore() |
| throws NamingException { |
| return iterator.hasNext(); |
| } |
| |
| |
| /** |
| * Closes this enumeration. |
| */ |
| public void close() |
| throws NamingException { |
| } |
| |
| |
| public boolean hasMoreElements() { |
| return iterator.hasNext(); |
| } |
| |
| |
| public Object nextElement() { |
| try { |
| return nextElementInternal(); |
| } catch (NamingException e) { |
| throw new RuntimeException(e.getMessage(), e); |
| } |
| } |
| |
| private Object nextElementInternal() throws NamingException { |
| NamingEntry entry = (NamingEntry) iterator.next(); |
| |
| // If the entry is a reference, resolve it |
| if (entry.type == NamingEntry.REFERENCE |
| || entry.type == NamingEntry.LINK_REF) { |
| try { |
| // A lookup will resolve the entry |
| ctx.lookup(new CompositeName(entry.name)); |
| } catch (NamingException e) { |
| throw e; |
| } catch (Exception e) { |
| NamingException ne = new NamingException(e.getMessage()); |
| ne.initCause(e); |
| throw ne; |
| } |
| } |
| |
| return new Binding(entry.name, entry.value.getClass().getName(), |
| entry.value, true); |
| } |
| |
| |
| } |
| |