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/* Copyright (C) 2000 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package javax.naming;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Properties;
import java.applet.Applet;
import java.util.Hashtable;
import javax.naming.spi.NamingManager;
public class InitialContext implements Context
{
protected Context defaultInitCtx;
protected boolean gotDefault = false;
protected Hashtable myProps;
InitialContext (Hashtable environment)
{
init (environment);
}
protected InitialContext (boolean lazy)
{
if (! lazy)
init (null);
}
InitialContext ()
{
init (null);
}
protected void init (Hashtable environment)
{
// FIXME: Is this enough?
final String[] properties = {
Context.DNS_URL,
Context.INITIAL_CONTEXT_FACTORY,
Context.OBJECT_FACTORIES,
Context.PROVIDER_URL,
Context.STATE_FACTORIES,
Context.URL_PKG_PREFIXES,
};
// Create myProps, cloning environment if needed.
if (environment != null)
myProps = (Hashtable) environment.clone ();
else
myProps = new Hashtable ();
Applet napplet = (Applet) myProps.get (Context.APPLET);
for (int i = properties.length - 1; i >= 0; i--)
{
Object o = myProps.get (properties[i]);
if (o == null)
{
if (napplet != null)
o = napplet.getParameter (properties[i]);
if (o == null)
o = System.getProperty (properties[i]);
if (o != null)
myProps.put (properties[i], o);
}
}
try
{
Enumeration ep = Thread.currentThread().getContextClassLoader().getResources("jndi.naming");
while (ep.hasMoreElements ())
{
URL url = (URL) ep.nextElement ();
Properties p = new Properties ();
try {
InputStream is = url.openStream ();
p.load (is);
is.close ();
} catch (IOException e) {}
merge (myProps, p);
}
}
catch (IOException e) {}
String home = System.getProperty("java.home");
if (home != null)
{
String fileName = home + File.separator
+ "lib" + File.separator + "jndi.properties";
Properties p = new Properties ();
try {
InputStream is = new FileInputStream (fileName);
p.load (is);
is.close ();
} catch (IOException e) {}
merge (myProps, p);
}
}
// FIXME: Is this enough?
private static final String[] colon_list =
{
Context.OBJECT_FACTORIS,
Context.URL_PKG_PREFIXES,
Context.STATE_FACTORIES
};
private static void merge (Hashtable h1, Hashtable h2)
{
Enumeration e2 = h2.keys();
while (e2.hasMoreElements())
{
String key2 = (String) e2.nextElement();
Object value1 = h1.get(key2);
if (value1 == null)
h1.put(key2, h2.get(key2));
else if (key2.compareTo(colon_list[0]) == 0
|| key2.compareTo(colon_list[1]) == 0
|| key2.compareTo(colon_list[2]) == 0
|| key2.compareTo(colon_list[3]) == 0)
{
String value2 = (String) h2.get(key2);
h1.put(key2, (String) value1 + ":" + value2);
}
}
}
protected Context getDefaultInitCtx () throws NamingException
{
if (! gotDefault)
{
defaultInitCtx = NamingManager.getInitialContext (myProps);
gotDefault = true;
}
return defaultInitCtx;
}
protected Context getURLOrDefaultInitCtx (Name name)
throws NamingException
{
if (name.size () > 0)
return getURLOrDefaultInitCtx (name.get (0));
else
return getDefaultInitCtx ();
}
protected Context getURLOrDefaultInitCtx (String name)
throws NamingException
{
String scheme = null;
if (NamingManager.hasInitialContextFactoryBuilder())
return getDefaultInitCtx();
int colon = name.indexOf(':');
int slash = name.indexOf('/');
if (colon > 0 && (slash == -1 || colon < slash))
scheme = name.substring(0, colon);
if (scheme != null)
{
Context context =
NamingManager.getURLContext(scheme, myProps);
if (context != null)
return context;
}
return getDefaultInitCtx();
}
public void bind (Name name, Object obj) throws NamingException
{
getURLOrDefaultInitCtx (name).bind (name, obj);
}
public void bind (String name, Object obj) throws NamingException
{
getURLOrDefaultInitCtx (name).bind (name, obj);
}
}
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