INTEGRATION: CWS adc18 (1.1.2); FILE ADDED

2007/09/20 12:05:51 np 1.1.2.1: #i81775#

1 files changed, 191 insertions, 0 deletions

diff --git a/cosv/inc/cosv/tpl/processor.hxx b/cosv/inc/cosv/tpl/processor.hxx
new file mode 100644
index 000000000000..02565f1a20ab
--- /dev/null
+++ b/cosv/inc/cosv/tpl/processor.hxx
@@ -0,0 +1,191 @@
+/*************************************************************************
+ *
+ *  OpenOffice.org - a multi-platform office productivity suite
+ *
+ *  $RCSfile: processor.hxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: hr $ $Date: 2007-11-02 17:43:55 $
+ *
+ *  The Contents of this file are made available subject to
+ *  the terms of GNU Lesser General Public License Version 2.1.
+ *
+ *
+ *    GNU Lesser General Public License Version 2.1
+ *    =============================================
+ *    Copyright 2005 by Sun Microsystems, Inc.
+ *    901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *    This library is free software; you can redistribute it and/or
+ *    modify it under the terms of the GNU Lesser General Public
+ *    License version 2.1, as published by the Free Software Foundation.
+ *
+ *    This library 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
+ *    Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public
+ *    License along with this library; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *    MA  02111-1307  USA
+ *
+ ************************************************************************/
+
+#ifndef CSV_TPL_PROCESSOR_HXX
+#define CSV_TPL_PROCESSOR_HXX
+
+// USED SERVICES
+
+
+
+
+namespace csv
+{
+
+
+/** Implements an acyclic visitor pattern. This is the abstract
+    base for the classes doing the work (the "visitors").
+*/
+class ProcessorIfc
+{
+  public:
+    virtual             ~ProcessorIfc() {}
+};
+
+
+
+/** Implements an acyclic visitor pattern. This is the abstract
+    base for the classes to be processed (the "visitables").
+*/
+class ConstProcessorClient
+{
+  public:
+    virtual             ~ConstProcessorClient() {}
+
+    void                Accept(
+                            ProcessorIfc &  io_processor ) const
+                            { do_Accept(io_processor); }
+  private:
+    virtual void        do_Accept(
+                            ProcessorIfc &  io_processor ) const = 0;
+};
+
+/** Implements an acyclic visitor pattern. This is the abstract
+    base for the classes to be processed (the "visitables").
+*/
+class ProcessorClient
+{
+  public:
+    virtual             ~ProcessorClient() {}
+
+    void                Accept(
+                            ProcessorIfc &  io_processor )
+                            { do_Accept(io_processor); }
+  private:
+    virtual void        do_Accept(
+                            ProcessorIfc &  io_processor ) = 0;
+};
+
+
+
+
+
+/** Typed base for "visitor" classes, leaving the visited
+    object const.
+
+    @see ProcessorIfc
+    @see Processor<>
+*/
+template <typename X, typename R = void>
+class ConstProcessor
+{
+  public:
+    virtual             ~ConstProcessor() {}
+
+    R                   Process(
+                            const X &           i_object )
+                        { return do_Process(i_object ); }
+ private:
+    virtual R           do_Process(
+                            const X &           i_object ) = 0;
+};
+
+
+/** Typed base for "visitor" classes which may change the visited
+    object.
+
+    @see ProcessorIfc
+    @see ConstProcessor<>
+*/
+template <typename X, typename R = void>
+class Processor
+{
+  public:
+    virtual             ~Processor() {}
+
+    R                   Process(
+                            X &                 i_object )
+                        { return do_Process(i_object ); }
+ private:
+    virtual R           do_Process(
+                            X &                 i_object ) = 0;
+};
+
+
+template <class C>
+inline void
+CheckedCall( ProcessorIfc &  io_processor,
+             const C &       i_client )
+{
+    ConstProcessor<C> *
+        pProcessor = dynamic_cast< csv::ConstProcessor<C> * >
+                        (&io_processor);
+    if (pProcessor != 0)
+        pProcessor->Process(i_client);
+}
+
+template <class C>
+inline void
+CheckedCall( ProcessorIfc &  io_processor,
+             C &             io_client )
+{
+    Processor<C> *
+        pProcessor = dynamic_cast< csv::Processor<C> * >
+                        (&io_processor);
+    if (pProcessor != 0)
+        pProcessor->Process(io_client);
+}
+
+template <class C>
+inline void
+AssertedCall( ProcessorIfc &  io_processor,
+              const C &       i_client )
+{
+    ConstProcessor<C> *
+        pProcessor = dynamic_cast< csv::ConstProcessor<C> * >
+                        (&io_processor);
+    csv_assert( pProcessor != 0
+                && "csv::AssertedCall() failed. Processed object did not match processor." );
+    pProcessor->Process(i_client);
+}
+
+template <class C>
+inline void
+AssertedCall( ProcessorIfc &  io_processor,
+              C &             io_client )
+{
+    Processor<C> *
+        pProcessor = dynamic_cast< csv::Processor<C> * >
+                        (&io_processor);
+    csv_assert( pProcessor != 0
+                && "csv::AssertedCall() failed. Processed object did not match processor." );
+    pProcessor->Process(io_client);
+}
+
+
+
+
+}   // namespace csv
+#endif