/*
* Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.jndi.url.rmi;
import java.util.Hashtable;
import java.rmi.registry.LocateRegistry;
import javax.naming.*;
import javax.naming.spi.ResolveResult;
import com.sun.jndi.toolkit.url.GenericURLContext;
import com.sun.jndi.rmi.registry.RegistryContext;
/**
* An RMI URL context resolves names that are URLs of the form
* <pre>
* rmi://[host][:port][/[object]]
* or
* rmi:[/][object]
* </pre>
* If an object is specified, the URL resolves to the named object.
* Otherwise, the URL resolves to the specified RMI registry.
*
* @author Scott Seligman
*/
public class rmiURLContext extends GenericURLContext {
public rmiURLContext(Hashtable env) {
super(env);
}
/**
* Resolves the registry portion of "url" to the corresponding
* RMI registry, and returns the atomic object name as the
* remaining name.
*/
protected ResolveResult getRootURLContext(String url, Hashtable env)
throws NamingException
{
if (!url.startsWith("rmi:")) {
throw (new IllegalArgumentException(
"rmiURLContext: name is not an RMI URL: " + url));
}
// Parse the URL.
String host = null;
int port = -1;
String objName = null;
int i = 4; // index into url, following the "rmi:"
if (url.startsWith("//", i)) { // parse "//host:port"
i += 2; // skip past "//"
int slash = url.indexOf('/', i);
if (slash < 0) {
slash = url.length();
}
if (url.startsWith("[", i)) { // at IPv6 literal
int brac = url.indexOf(']', i + 1);
if (brac < 0 || brac > slash) {
throw new IllegalArgumentException(
"rmiURLContext: name is an Invalid URL: " + url);
}
host = url.substring(i, brac + 1); // include brackets
i = brac + 1; // skip past "[...]"
} else { // at host name or IPv4
int colon = url.indexOf(':', i);
int hostEnd = (colon < 0 || colon > slash)
? slash
: colon;
if (i < hostEnd) {
host = url.substring(i, hostEnd);
}
i = hostEnd; // skip past host
}
if ((i + 1 < slash)) {
if ( url.startsWith(":", i)) { // parse port
i++; // skip past ":"
port = Integer.parseInt(url.substring(i, slash));
} else {
throw new IllegalArgumentException(
"rmiURLContext: name is an Invalid URL: " + url);
}
}
i = slash;
}
if ("".equals(host)) {
host = null;
}
if (url.startsWith("/", i)) { // skip "/" before object name
i++;
}
if (i < url.length()) {
objName = url.substring(i);
}
// Represent object name as empty or single-component composite name.
CompositeName remaining = new CompositeName();
if (objName != null) {
remaining.add(objName);
}
// Debug
//System.out.println("host=" + host + " port=" + port +
// " objName=" + remaining.toString() + "\n");
// Create a registry context.
Context regCtx = new RegistryContext(host, port, env);
return (new ResolveResult(regCtx, remaining));
}
}