| /* |
| * Copyright (c) 2008, 2018 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package com.sun.enterprise.naming.impl; |
| |
| import org.glassfish.api.naming.GlassfishNamingManager; |
| import org.glassfish.api.naming.NamedNamingObjectProxy; |
| import org.glassfish.api.naming.NamespacePrefixes; |
| import org.glassfish.hk2.api.ServiceHandle; |
| import org.glassfish.hk2.api.ServiceLocator; |
| |
| import javax.naming.NamingException; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicReference; |
| import java.util.concurrent.locks.ReadWriteLock; |
| import java.util.concurrent.locks.ReentrantReadWriteLock; |
| import java.util.logging.Level; |
| |
| import static com.sun.enterprise.naming.util.LogFacade.logger; |
| |
| /** |
| * @author Mahesh Kannan |
| */ |
| public class NamedNamingObjectManager { |
| |
| private static final AtomicReference<ServiceLocator> habitatRef |
| = new AtomicReference<ServiceLocator>(); |
| |
| private static final Map<String, NamedNamingObjectProxy> proxies = new HashMap<String, NamedNamingObjectProxy>(); |
| |
| private static final ReadWriteLock rwLock = new ReentrantReadWriteLock(); |
| |
| public static void checkAndLoadProxies(ServiceLocator habitat) |
| throws NamingException { |
| if (NamedNamingObjectManager.habitatRef.get() != habitat) { |
| if (habitat != null) { |
| rwLock.writeLock().lock(); |
| try { |
| if (NamedNamingObjectManager.habitatRef.get() != habitat) { |
| NamedNamingObjectManager.habitatRef.set(habitat); |
| proxies.clear(); |
| } |
| } finally { |
| rwLock.writeLock().unlock(); |
| } |
| } |
| } |
| } |
| |
| public static Object tryNamedProxies(String name) |
| throws NamingException { |
| |
| NamedNamingObjectProxy proxy = getCachedProxy(name); |
| if (proxy != null) { |
| if (logger.isLoggable(Level.FINE)) { |
| logger.logp(Level.FINE, "NamedNamingObjectManager", "tryNamedProxies", |
| "found cached proxy [{0}] for [{1}]", new Object[]{proxy, name}); |
| } |
| return proxy.handle(name); |
| } |
| |
| // for (Binding<?> b : getHabitat().getBindings(new NamingDescriptor())) { |
| // for (String prefix : b.getDescriptor().getNames()) { |
| // if (name.startsWith(prefix)) { |
| // proxy = (NamedNamingObjectProxy) b.getProvider().get(); |
| // System.out.println("NamedNamingObjectManager.tryNamedProxies: found a proxy " + proxy + " for " + name); |
| // cacheProxy(prefix, proxy); |
| // return proxy.handle(name); |
| // } |
| // } |
| // } |
| |
| for (ServiceHandle<?> inhabitant : getHabitat() |
| .getAllServiceHandles(NamespacePrefixes.class)) { |
| List<String> prefixes = inhabitant.getActiveDescriptor().getMetadata().get(GlassfishNamingManager.NAMESPACE_METADATA_KEY); |
| if (prefixes == null) continue; |
| |
| String prefix = null; |
| for (String candidate : prefixes) { |
| if (name.startsWith(candidate)) { |
| prefix = candidate; |
| break; |
| } |
| } |
| |
| if (prefix != null) { |
| proxy = (NamedNamingObjectProxy) inhabitant.getService(); |
| if (logger.isLoggable(Level.FINE)) { |
| logger.logp(Level.FINE, "NamedNamingObjectManager", |
| "tryNamedProxies", |
| "found a new proxy [{0}] for [{1}]", new Object[] { |
| proxy, name }); |
| } |
| cacheProxy(prefix, proxy); |
| return proxy.handle(name); |
| } |
| } |
| |
| return null; |
| } |
| |
| private static ServiceLocator getHabitat() { |
| return habitatRef.get(); |
| } |
| |
| private static NamedNamingObjectProxy getCachedProxy(String name) { |
| rwLock.readLock().lock(); |
| try { |
| Iterator it = proxies.entrySet().iterator(); |
| while (it.hasNext()) { |
| Map.Entry pair = (Map.Entry)it.next(); |
| if(name.startsWith(pair.getKey().toString())) { |
| return (NamedNamingObjectProxy) pair.getValue(); |
| } |
| } |
| } finally { |
| rwLock.readLock().unlock(); |
| } |
| return null; |
| } |
| |
| private static void cacheProxy(String prefix, NamedNamingObjectProxy proxy) { |
| rwLock.writeLock().lock(); |
| try { |
| proxies.put(prefix, proxy); |
| } finally { |
| rwLock.writeLock().unlock(); |
| } |
| } |
| |
| } |