mirror of git://gcc.gnu.org/git/gcc.git
76 lines
1.7 KiB
Java
76 lines
1.7 KiB
Java
/* Copyright (C) 2001 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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package javax.naming.ldap;
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import javax.naming.*;
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import java.util.StringTokenizer;
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import java.util.Hashtable;
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/**
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* @author Tom Tromey <tromey@redhat.com>
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* @date June 22, 2001
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*/
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public abstract class ControlFactory
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{
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protected ControlFactory ()
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{
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}
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public abstract Control getControlInstance (Control control)
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throws NamingException;
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public static Control getControlInstance (Control control,
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Context ctx,
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Hashtable env)
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throws NamingException
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{
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String path = (String) env.get (LdapContext.CONTROL_FACTORIES);
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String path2 = null;
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if (ctx != null)
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path2 = (String) ctx.getEnvironment ().get (LdapContext.CONTROL_FACTORIES);
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if (path == null)
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path = path2;
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else if (path2 != null)
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path += ":" + path2;
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StringTokenizer tokens = new StringTokenizer (path, ":");
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while (tokens.hasMoreTokens ())
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{
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String name = tokens.nextToken ();
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try
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{
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Class k = Class.forName (name);
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ControlFactory cf = (ControlFactory) k.newInstance ();
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Control ctrl = cf.getControlInstance (control);
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if (ctrl != null)
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return ctrl;
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}
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catch (ClassNotFoundException _1)
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{
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// Ignore it.
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}
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catch (ClassCastException _2)
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{
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// Ignore it.
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}
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catch (InstantiationException _3)
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{
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// If we couldn't instantiate the factory we might get
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// this.
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}
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catch (IllegalAccessException _4)
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{
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// Another possibility when instantiating.
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}
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}
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return control;
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}
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}
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