/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.naming;
import com.caucho.loader.EnvironmentLocal;
import com.caucho.util.L10N;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.naming.NameNotFoundException;
import javax.naming.NameParser;
import javax.naming.NamingException;
import java.util.WeakHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Static utility functions.
*/
public class Jndi {
private static Logger log
= Logger.getLogger(Jndi.class.getName());
private static L10N L = new L10N(Jndi.class);
private static final EnvironmentLocal<Context> _javaCompEnvMap
= new EnvironmentLocal<Context>();
private Jndi() {}
/**
* Returns the full name.
*/
public static String getFullName(String shortName)
{
if (shortName.startsWith("java:"))
return shortName;
else
return "java:comp/env/" + shortName;
}
private static Context getShortContext(String shortName)
throws NamingException
{
if (shortName.startsWith("java:"))
return getInitialContext();
else {
Context context = (Context) _javaCompEnvMap.getLevel();
if (context == null) {
context = (Context) new InitialContext().lookup("java:comp/env");
_javaCompEnvMap.set(context);
}
return context;
}
}
public static void bindDeepShort(String name, Object obj)
throws NamingException
{
String fullName = getFullName(name);
Context context = getShortContext(name);
bindImpl(context, name, obj, fullName);
}
public static void bindDeepShort(Context context, String name, Object obj)
throws NamingException
{
bindImpl(context, getFullName(name), obj, name);
}
public static void bindDeep(String name, Object obj)
throws NamingException
{
bindImpl(getInitialContext(), name, obj, name);
}
public static void bindDeep(Context context, String name, Object obj)
throws NamingException
{
bindImpl(context, name, obj, name);
}
private static Context getInitialContext()
throws NamingException
{
// return new InitialContext();
return InitialContextFactoryImpl.createInitialContext();
}
private static void bindImpl(Context context, String name,
Object obj, String fullName)
throws NamingException
{
NameParser parser = context.getNameParser("");
Name parsedName = parser.parse(name);
if (parsedName.size() == 1) {
Object value = null;
try {
if (context instanceof ContextImpl)
value = ((ContextImpl) context).lookupLink(name);
else
value = context.lookupLink(name);
} catch (NameNotFoundException e) {
}
context.rebind(name, obj);
// server/1620
if (value != null && value != obj)
log.config(L.l("'{0}' overrides a previous JNDI resource. The old resource is '{1}' and the new one is '{2}'",
fullName, value, obj));
return;
}
Object sub = null;
try {
if (context instanceof ContextImpl)
sub = ((ContextImpl) context).lookupImpl(parsedName.get(0));
else
sub = context.lookup(parsedName.get(0));
} catch (NameNotFoundException e) {
}
if (sub == null)
sub = context.createSubcontext(parsedName.get(0));
if (sub instanceof Context)
bindImpl((Context) sub, parsedName.getSuffix(1).toString(), obj, fullName);
else
throw new NamingException(L.l("'{0}' is an invalid JNDI name because '{1} is not a Context. One of the subcontexts is not a Context as expected.",
fullName, sub));
}
/**
* Binds the object into JNDI without warnings if an old
* object exists. The name may be a full name or the short
* form.
*/
public static void rebindDeepShort(String name, Object obj)
throws NamingException
{
rebindImpl(new InitialContext(), getFullName(name), obj, name);
}
/**
* Binds the object into JNDI without warnings if an old
* object exists. The name may be a full name or the short
* form.
*/
public static void rebindDeepShort(Context context, String name, Object obj)
throws NamingException
{
rebindImpl(context, getFullName(name), obj, name);
}
/**
* Binds the object into JNDI without warnings if an old
* object exists, using the full JNDI name.
*/
public static void rebindDeep(String name, Object obj)
throws NamingException
{
rebindImpl(new InitialContext(), name, obj, name);
}
/**
* Binds the object into JNDI without warnings if an old
* object exists, using the full JNDI name.
*/
public static void rebindDeep(Context context, String name, Object obj)
throws NamingException
{
rebindImpl(context, name, obj, name);
}
/**
* Binds the object into JNDI without warnings if an old
* object exists.
*/
private static void rebindImpl(Context context, String name,
Object obj, String fullName)
throws NamingException
{
NameParser parser = context.getNameParser("");
Name parsedName = parser.parse(name);
if (parsedName.size() == 1) {
context.rebind(name, obj);
return;
}
Object sub = null;
try {
sub = context.lookup(parsedName.get(0));
} catch (NameNotFoundException e) {
log.log(Level.FINEST, e.toString(), e);
}
if (sub == null)
sub = context.createSubcontext(parsedName.get(0));
if (sub instanceof Context)
rebindImpl((Context) sub, parsedName.getSuffix(1).toString(), obj,
fullName);
else
throw new NamingException(L.l("'{0}' is an invalid JNDI name because '{1} is not a Context. One of the subcontexts is not a Context as expected.",
fullName, sub));
}
// For EL
public static Object lookup(String name)
{
Exception ex = null;
try {
Object value = new InitialContext().lookup(name);
if (value != null)
return value;
} catch (NamingException e) {
ex = e;
}
if (! name.startsWith("java:")) {
try {
Object value = new InitialContext().lookup("java:comp/env/" + name);
if (value != null)
return value;
} catch (NamingException e) {
ex = e;
}
}
if (ex != null && log.isLoggable(Level.FINEST))
log.log(Level.FINEST, ex.toString(), ex);
return null;
}
}