Initial revision

From-SVN: r102074
2005-07-16 00:30:23 +00:00
parent 6f4434b39b
commit f911ba985a
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+/* CloseMessage.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.GIOP;
+
+import gnu.CORBA.IOR;
+
+import org.omg.CORBA.MARSHAL;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+import java.net.Socket;
+
+/**
+ * The explicit command to close the connection.
+ *
+ *
+ * The close message consists from the message header only and
+ * is the same for GIOP 1.0, 1.1, 1.2 and 1.3. The CloseMessage
+ * uses the default value from the {@link MessageHeader}.
+ *
+ * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
+ */
+public class CloseMessage
+  extends MessageHeader
+{
+  /**
+   * The singleton close message is typically enough, despite new
+   * instances may be instantiated if the specific version field
+   * value is mandatory.
+   */
+  private static final CloseMessage Singleton = new CloseMessage();
+
+  /**
+   * Create a new error message, setting the message field
+   * to the {@link MESSAGE_CLOSE} and the version number to
+   * the given major and minor values.
+   */
+  public CloseMessage()
+  {
+    message_type = CLOSE_CONNECTION;
+  }
+
+  /**
+   * Send the close message to the given output stream. The method,
+   * however, does not close the socket itself, this must be done
+   * explicitly in the calling code.
+   *
+   * @param socketStream a stream, where the close message is
+   * written.
+   */
+  public static void close(OutputStream socketStream)
+  {
+    try
+      {
+        Singleton.write(socketStream);
+        socketStream.flush();
+      }
+    catch (IOException ex)
+      {
+        MARSHAL m = new MARSHAL("Unable to flush the stream");
+        m.initCause(ex);
+        throw m;
+      }
+  }
+}