Imported GNU Classpath 0.19 + gcj-import-20051115.

* sources.am: Regenerated. * Makefile.in: Likewise. * scripts/makemake.tcl: Use glob -nocomplain. From-SVN: r107049
2005-11-15 23:20:01 +00:00
parent 02e549bfaa
commit 8f523f3a10
1241 changed files with 97711 additions and 25284 deletions
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+/* StubLocator.java --
+   Copyright (C) 2005 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 gnu.CORBA;
+
+import org.omg.CORBA.ORB;
+import org.omg.CORBA.portable.ObjectImpl;
+
+/**
+ * Finds a stub class like "_HelloStub" that can be instantiated
+ * from IOR reference. The returned object can be casted to the
+ * used type like "Hello" without using the helper .narrow method,
+ * and the object is not unnsecessarily re - instantiated if
+ * the .narrow method is used anyway. If no stub, matching the naming
+ * conventions, is available, the returned stub replacement can still be used
+ * to get the valid request, add parameter and invoke the method by name.
+ *
+ * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
+ */
+public class StubLocator
+{
+  /**
+   * Search for the possibly available default stub.
+   *
+   * @param orb the current ORB. It is not required to find the binding
+   * classes, but is needed to instantiate the default implementation
+   * if no binding classes are found.
+   *
+   * @param ior the IOR, possibly containing the information about the
+   * correct implementation class.
+   */
+  public static ObjectImpl search(ORB orb, IOR ior)
+  {
+    try
+      {
+        int a = ior.Id.indexOf(':');
+        int b = ior.Id.lastIndexOf(':');
+
+        String s = ior.Id.substring(a + 1, b).replace('/', '.');
+
+        String path;
+
+        b = s.lastIndexOf('.');
+        if (b > 0)
+          path = s.substring(0, b + 1);
+        else
+          path = "";
+
+        String stub = "_" + s.substring(b + 1) + "Stub";
+
+        Class stubClass = ObjectCreator.forName(path + stub);
+
+        return (ObjectImpl) stubClass.newInstance();
+      }
+    catch (Exception failed)
+      {
+        // Various exceptions can be thrown if the Id cannot be parsed,
+        // the class is missing, cannot be instantiated or is not an
+        // instance of the ObjectImpl.
+        return createDefaultStub(orb, ior);
+      }
+  }
+
+  /**
+   * Return the default stub for the case when the client binding classes
+   * are not locally available. The returned stub can still be used
+   * to get the valid request, add parameter and invoke the method by name.
+   *
+   * @return the default implementation.
+   */
+  protected static ObjectImpl createDefaultStub(ORB orb, IOR ior)
+  {
+    return new IorObject(orb, ior);
+  }
+}