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/*
* ====================================================================
* Project: openMDX, http://www.openmdx.org/
* Description: Contexts
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2004-2007, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by the Apache Software
* Foundation (http://www.apache.org/).
*/
package org.openmdx.kernel.naming;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NameNotFoundException;
import javax.naming.NamingException;
import javax.naming.NotContextException;
/**
* Contexts
*/
public class Contexts {
/**
* Constructor
*/
protected Contexts(
){
// Avoid instantiations
}
/**
* Binds an object to a name creating intermediate contexts if necessary
*
* @param context
* @param name the name relative to the context
* @param object the object to be bound to the name
*
* @return the existing or newly created context
*/
public static void bind(
Context context,
Name name,
Object object
) throws NamingException {
int i = name.size() - 1;
getSubcontext(context, name.getPrefix(i)).bind(name.get(i), object);
}
/**
* Binds an object to a name creating intermediate contexts if necessary
*
* @param context
* @param name the name relative to the context
* @param object the object to be bound to the name
*
* @return the existing or newly created context
*/
public static void bind(
Context context,
String name,
Object object
) throws NamingException {
bind(context, context.getNameParser("").parse(name), object);
}
/**
* Lookup or create a subcontext
*
* @param context
* @param name the name relative to the context
*
* @return the existing or newly created context
*/
public static Context getSubcontext(
Context context,
Name name
) throws NamingException {
Context cursor = context;
for(int i=0; i< name.size(); i++) try {
cursor = (Context) cursor.lookup(name.get(i));
} catch (NameNotFoundException exception){
cursor = cursor.createSubcontext(name.get(i));
} catch (ClassCastException exception) {
NamingException namingException = new NotContextException(
"Intermediate name not bound to a context"
);
namingException.setRootCause(exception);
namingException.setResolvedName(name.getPrefix(i));
namingException.setRemainingName(name.getSuffix(i));
throw namingException;
}
return cursor;
}
/**
* Lookup or create a subcontext
*
* @param context
* @param name the name relative to the context
*
* @return the existing or newly created context
* @throws NamingException
*/
public static Context getSubcontext(
Context context,
String name
) throws NamingException{
return getSubcontext(
context,
context.getNameParser("").parse(name)
);
}
/**
* The name under which the lightweight container is bound to the registry
*/
public static String getNamingService (
){
return System.getProperty(
NAMING_SERVICE,
"org.openmdx.rmi.naming"
);
}
/**
* The lightweight container's RMI registry's port.
*/
public static int getRegistryPort (
){
return Integer.getInteger(
REGISTRY_PORT,
19523 // 0x4c43 stands for "LC"
).intValue();
}
/**
* This system property contains the id under which the lightweight container's naming service is bound to RMI registry.
*/
public static final String NAMING_SERVICE = "org.openmdx.rmi.naming.service";
/**
* This system property contains the port to be used by the lightweight container's RMI registry.
*/
public static final String REGISTRY_PORT = "org.openmdx.rmi.registry.port";
}
