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authorJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
committerJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
commitb094d6c4bf572654a031ecc4afe675154c886dc5 (patch)
tree89394c56b05e13a5413ee60237d65b0214fd98e2 /gcc-4.4.3/libjava/classpath/gnu/CORBA/StubLocator.java
parentdc34721ac3bf7e3c406fba8cfe9d139393345ec5 (diff)
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commit gcc-4.4.3 which is used to build gcc-4.4.3 Android toolchain in master.
The source is based on fsf gcc-4.4.3 and contains local patches which are recorded in gcc-4.4.3/README.google. Change-Id: Id8c6d6927df274ae9749196a1cc24dbd9abc9887
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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);
+ }
+}