| /* |
| * 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.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 |
| */ |
| public class NamingContextBindingsEnumeration |
| implements NamingEnumeration<Binding> { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| public NamingContextBindingsEnumeration(Iterator<NamingEntry> entries, |
| Context ctx) { |
| iterator = entries; |
| this.ctx = ctx; |
| } |
| |
| // -------------------------------------------------------------- Variables |
| |
| |
| /** |
| * Underlying enumeration. |
| */ |
| protected final Iterator<NamingEntry> iterator; |
| |
| |
| /** |
| * The context for which this enumeration is being generated. |
| */ |
| private final Context ctx; |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Retrieves the next element in the enumeration. |
| */ |
| @Override |
| public Binding next() |
| throws NamingException { |
| return nextElementInternal(); |
| } |
| |
| |
| /** |
| * Determines whether there are any more elements in the enumeration. |
| */ |
| @Override |
| public boolean hasMore() |
| throws NamingException { |
| return iterator.hasNext(); |
| } |
| |
| |
| /** |
| * Closes this enumeration. |
| */ |
| @Override |
| public void close() |
| throws NamingException { |
| } |
| |
| |
| @Override |
| public boolean hasMoreElements() { |
| return iterator.hasNext(); |
| } |
| |
| |
| @Override |
| public Binding nextElement() { |
| try { |
| return nextElementInternal(); |
| } catch (NamingException e) { |
| throw new RuntimeException(e.getMessage(), e); |
| } |
| } |
| |
| private Binding nextElementInternal() throws NamingException { |
| NamingEntry entry = iterator.next(); |
| Object value; |
| |
| // If the entry is a reference, resolve it |
| if (entry.type == NamingEntry.REFERENCE |
| || entry.type == NamingEntry.LINK_REF) { |
| try { |
| value = 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; |
| } |
| } else { |
| value = entry.value; |
| } |
| |
| return new Binding(entry.name, value.getClass().getName(), value, true); |
| } |
| } |
| |