mirror of git://gcc.gnu.org/git/gcc.git
394 lines
9.9 KiB
Java
394 lines
9.9 KiB
Java
/* InitialContext.java --
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Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.naming;
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import java.applet.Applet;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.Enumeration;
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import java.util.Hashtable;
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import java.util.Properties;
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import javax.naming.spi.NamingManager;
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public class InitialContext implements Context
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{
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protected Context defaultInitCtx;
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protected boolean gotDefault = false;
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protected Hashtable myProps;
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public InitialContext (Hashtable environment)
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throws NamingException
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{
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init (environment);
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}
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protected InitialContext (boolean lazy)
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throws NamingException
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{
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if (! lazy)
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init (null);
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}
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public InitialContext ()
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throws NamingException
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{
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init (null);
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}
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/** @since 1.3 */
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protected void init (Hashtable environment)
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throws NamingException
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{
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// FIXME: Is this enough?
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final String[] properties = {
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Context.DNS_URL,
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Context.INITIAL_CONTEXT_FACTORY,
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Context.OBJECT_FACTORIES,
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Context.PROVIDER_URL,
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Context.STATE_FACTORIES,
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Context.URL_PKG_PREFIXES,
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};
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// Create myProps, cloning environment if needed.
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if (environment != null)
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myProps = (Hashtable) environment.clone ();
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else
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myProps = new Hashtable ();
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Applet napplet = (Applet) myProps.get (Context.APPLET);
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for (int i = properties.length - 1; i >= 0; i--)
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{
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Object o = myProps.get (properties[i]);
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if (o == null)
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{
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if (napplet != null)
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o = napplet.getParameter (properties[i]);
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if (o == null)
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o = System.getProperty (properties[i]);
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if (o != null)
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myProps.put (properties[i], o);
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}
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}
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try
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{
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Enumeration ep = Thread.currentThread().getContextClassLoader().getResources("jndi.naming");
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while (ep.hasMoreElements ())
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{
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URL url = (URL) ep.nextElement ();
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Properties p = new Properties ();
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try
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{
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InputStream is = url.openStream ();
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p.load (is);
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is.close ();
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}
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catch (IOException e)
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{
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}
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merge (myProps, p);
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}
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}
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catch (IOException e)
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{
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}
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String home = System.getProperty("gnu.classpath.home.url");
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if (home != null)
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{
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String url = home + "/jndi.properties";
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Properties p = new Properties ();
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try
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{
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InputStream is = new URL(url).openStream();
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p.load (is);
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is.close ();
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}
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catch (IOException e)
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{
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// Ignore.
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}
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merge (myProps, p);
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}
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}
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// FIXME: Is this enough?
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private static final String[] colon_list =
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{
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Context.OBJECT_FACTORIES,
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Context.URL_PKG_PREFIXES,
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Context.STATE_FACTORIES
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};
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private static void merge (Hashtable h1, Hashtable h2)
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{
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Enumeration e2 = h2.keys();
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while (e2.hasMoreElements())
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{
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String key2 = (String) e2.nextElement();
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Object value1 = h1.get(key2);
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if (value1 == null)
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h1.put(key2, h2.get(key2));
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else if (key2.compareTo(colon_list[0]) == 0
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|| key2.compareTo(colon_list[1]) == 0
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|| key2.compareTo(colon_list[2]) == 0
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|| key2.compareTo(colon_list[3]) == 0)
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{
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String value2 = (String) h2.get(key2);
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h1.put(key2, (String) value1 + ":" + value2);
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}
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}
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}
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protected Context getDefaultInitCtx () throws NamingException
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{
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if (! gotDefault)
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{
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defaultInitCtx = NamingManager.getInitialContext (myProps);
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gotDefault = true;
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}
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return defaultInitCtx;
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}
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protected Context getURLOrDefaultInitCtx (Name name)
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throws NamingException
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{
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if (name.size () > 0)
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return getURLOrDefaultInitCtx (name.get (0));
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else
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return getDefaultInitCtx ();
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}
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protected Context getURLOrDefaultInitCtx (String name)
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throws NamingException
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{
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String scheme = null;
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if (NamingManager.hasInitialContextFactoryBuilder())
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return getDefaultInitCtx();
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int colon = name.indexOf(':');
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int slash = name.indexOf('/');
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if (colon > 0 && (slash == -1 || colon < slash))
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scheme = name.substring(0, colon);
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if (scheme != null)
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{
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Context context =
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NamingManager.getURLContext(scheme, myProps);
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if (context != null)
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return context;
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}
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return getDefaultInitCtx();
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}
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public void bind (Name name, Object obj) throws NamingException
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{
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getURLOrDefaultInitCtx (name).bind (name, obj);
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}
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public void bind (String name, Object obj) throws NamingException
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{
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getURLOrDefaultInitCtx (name).bind (name, obj);
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}
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public Object lookup (Name name) throws NamingException
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{
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try
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{
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return getURLOrDefaultInitCtx (name).lookup (name);
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}
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catch (CannotProceedException cpe)
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{
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Context ctx = NamingManager.getContinuationContext (cpe);
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return ctx.lookup (cpe.getRemainingName());
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}
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}
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public Object lookup (String name) throws NamingException
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{
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try
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{
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return getURLOrDefaultInitCtx (name).lookup (name);
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}
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catch (CannotProceedException cpe)
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{
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Context ctx = NamingManager.getContinuationContext (cpe);
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return ctx.lookup (cpe.getRemainingName());
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}
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}
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public void rebind (Name name, Object obj) throws NamingException
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{
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getURLOrDefaultInitCtx (name).rebind (name, obj);
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}
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public void rebind (String name, Object obj) throws NamingException
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{
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getURLOrDefaultInitCtx (name).rebind (name, obj);
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}
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public void unbind (Name name) throws NamingException
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{
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getURLOrDefaultInitCtx (name).unbind (name);
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}
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public void unbind (String name) throws NamingException
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{
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getURLOrDefaultInitCtx (name).unbind (name);
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}
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public void rename (Name oldName, Name newName) throws NamingException
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{
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getURLOrDefaultInitCtx (oldName).rename (oldName, newName);
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}
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public void rename (String oldName, String newName) throws NamingException
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{
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getURLOrDefaultInitCtx (oldName).rename (oldName, newName);
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}
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public NamingEnumeration list (Name name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).list (name);
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}
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public NamingEnumeration list (String name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).list (name);
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}
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public NamingEnumeration listBindings (Name name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).listBindings (name);
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}
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public NamingEnumeration listBindings (String name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).listBindings (name);
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}
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public void destroySubcontext (Name name) throws NamingException
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{
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getURLOrDefaultInitCtx (name).destroySubcontext (name);
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}
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public void destroySubcontext (String name) throws NamingException
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{
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getURLOrDefaultInitCtx (name).destroySubcontext (name);
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}
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public Context createSubcontext (Name name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).createSubcontext (name);
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}
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public Context createSubcontext (String name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).createSubcontext (name);
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}
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public Object lookupLink (Name name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).lookupLink (name);
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}
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public Object lookupLink (String name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).lookupLink (name);
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}
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public NameParser getNameParser (Name name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).getNameParser (name);
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}
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public NameParser getNameParser (String name) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).getNameParser (name);
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}
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public Name composeName (Name name, Name prefix) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).composeName (name, prefix);
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}
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public String composeName (String name,
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String prefix) throws NamingException
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{
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return getURLOrDefaultInitCtx (name).composeName (name, prefix);
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}
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public Object addToEnvironment (String propName,
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Object propVal) throws NamingException
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{
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return myProps.put (propName, propVal);
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}
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public Object removeFromEnvironment (String propName) throws NamingException
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{
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return myProps.remove (propName);
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}
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public Hashtable getEnvironment () throws NamingException
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{
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return myProps;
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}
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public void close () throws NamingException
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{
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myProps = null;
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defaultInitCtx = null;
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}
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public String getNameInNamespace () throws NamingException
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{
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throw new OperationNotSupportedException ();
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}
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}
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