133 lines
3.4 KiB
Java
133 lines
3.4 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.naming;
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import java.util.Iterator;
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import javax.naming.Binding;
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import javax.naming.CompositeName;
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import javax.naming.Context;
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import javax.naming.NamingEnumeration;
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import javax.naming.NamingException;
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/**
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* Naming enumeration implementation.
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*
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* @author Remy Maucherat
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*/
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public class NamingContextBindingsEnumeration
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implements NamingEnumeration<Binding> {
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// ----------------------------------------------------------- Constructors
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public NamingContextBindingsEnumeration(Iterator<NamingEntry> entries,
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Context ctx) {
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iterator = entries;
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this.ctx = ctx;
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}
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// -------------------------------------------------------------- Variables
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/**
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* Underlying enumeration.
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*/
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protected final Iterator<NamingEntry> iterator;
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/**
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* The context for which this enumeration is being generated.
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*/
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private final Context ctx;
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// --------------------------------------------------------- Public Methods
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/**
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* Retrieves the next element in the enumeration.
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*/
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@Override
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public Binding next()
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throws NamingException {
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return nextElementInternal();
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}
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/**
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* Determines whether there are any more elements in the enumeration.
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*/
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@Override
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public boolean hasMore()
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throws NamingException {
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return iterator.hasNext();
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}
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/**
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* Closes this enumeration.
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*/
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@Override
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public void close()
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throws NamingException {
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}
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@Override
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public boolean hasMoreElements() {
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return iterator.hasNext();
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}
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@Override
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public Binding nextElement() {
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try {
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return nextElementInternal();
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} catch (NamingException e) {
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throw new RuntimeException(e.getMessage(), e);
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}
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}
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private Binding nextElementInternal() throws NamingException {
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NamingEntry entry = iterator.next();
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Object value;
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// If the entry is a reference, resolve it
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if (entry.type == NamingEntry.REFERENCE
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|| entry.type == NamingEntry.LINK_REF) {
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try {
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value = ctx.lookup(new CompositeName(entry.name));
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} catch (NamingException e) {
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throw e;
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} catch (Exception e) {
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NamingException ne = new NamingException(e.getMessage());
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ne.initCause(e);
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throw ne;
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}
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} else {
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value = entry.value;
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}
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return new Binding(entry.name, value.getClass().getName(), value, true);
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}
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}
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