1 files changed, 107 insertions, 0 deletions
diff --git a/libjava/classpath/javax/naming/ldap/ControlFactory.java b/libjava/classpath/javax/naming/ldap/ControlFactory.java
new file mode 100644
index 00000000000..f72e67a7587
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+++ b/libjava/classpath/javax/naming/ldap/ControlFactory.java
@@ -0,0 +1,107 @@
+/* ControlFactory.java --
+   Copyright (C) 2001, 2004  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.naming.ldap;
+
+import java.util.Hashtable;
+import java.util.StringTokenizer;
+
+import javax.naming.Context;
+import javax.naming.NamingException;
+
+/**
+ * @author Tom Tromey (tromey@redhat.com)
+ * @date June 22, 2001
+ */
+public abstract class ControlFactory
+{
+  protected ControlFactory ()
+  {
+  }
+
+  public abstract Control getControlInstance (Control control)
+    throws NamingException;
+
+  public static Control getControlInstance (Control control,
+					    Context ctx,
+					    Hashtable env)
+    throws NamingException
+  {
+    String path = (String) env.get (LdapContext.CONTROL_FACTORIES);
+    String path2 = null;
+    if (ctx != null)
+      path2 = (String) ctx.getEnvironment ().get (LdapContext.CONTROL_FACTORIES);
+    if (path == null)
+      path = path2;
+    else if (path2 != null)
+      path += ":" + path2;
+
+    StringTokenizer tokens = new StringTokenizer (path, ":");
+    while (tokens.hasMoreTokens ())
+      {
+	String name = tokens.nextToken ();
+	try
+	  {
+	    Class k = Class.forName (name);
+	    ControlFactory cf = (ControlFactory) k.newInstance ();
+	    Control ctrl = cf.getControlInstance (control);
+	    if (ctrl != null)
+	      return ctrl;
+	  }
+	catch (ClassNotFoundException _1)
+	  {
+	    // Ignore it.
+	  }
+	catch (ClassCastException _2)
+	  {
+	    // Ignore it.
+	  }
+	catch (InstantiationException _3)
+	  {
+	    // If we couldn't instantiate the factory we might get
+	    // this.
+	  }
+	catch (IllegalAccessException _4)
+	  {
+	    // Another possibility when instantiating.
+	  }
+      }
+
+    return control;
+  }
+}