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diff --git a/dol/src/dol/visitor/yapi/YapiModuleVisitor.java b/dol/src/dol/visitor/yapi/YapiModuleVisitor.java
new file mode 100644
index 0000000..bf2f699
--- /dev/null
+++ b/dol/src/dol/visitor/yapi/YapiModuleVisitor.java
@@ -0,0 +1,126 @@
+/* $Id: YapiModuleVisitor.java 1 2010-02-24 13:03:05Z haidw $ */
+package dol.visitor.yapi;
+
+import java.io.FileOutputStream;
+import java.io.OutputStream;
+import java.util.Vector;
+
+import dol.datamodel.pn.Channel;
+import dol.datamodel.pn.Port;
+import dol.datamodel.pn.Process;
+import dol.datamodel.pn.ProcessNetwork;
+import dol.util.CodePrintStream;
+import dol.visitor.PNVisitor;
+
+/**
+ * This class is a class for a visitor that is used to generate
+ * the main program.
+ */
+public class YapiModuleVisitor extends PNVisitor {
+
+    /**
+     * Constructor.
+     */
+    public YapiModuleVisitor(String dir) {
+        _dir = dir;
+    }
+
+    /**
+     * 
+     */
+    public void visitComponent(ProcessNetwork pn) {
+        try {
+            //create header file
+            String filename = _dir + _delimiter + "application.h";
+            OutputStream file = new FileOutputStream(filename);
+            _code = new CodePrintStream(file);
+
+            _code.println("#include \"yapi.h\"");
+            _code.println();
+
+            Vector<String> processList = new Vector<String>();
+            for (Process p : pn.getProcessList()) {
+                String basename = p.getBasename();
+                if (!processList.contains(basename)) {
+                    processList.add(basename);
+                    _code.println("#include \""
+                            + p.getBasename() + "_wrapper.h\"");
+                }
+            }
+            _code.println();
+            _code.println("class Application : public ProcessNetwork");
+            _code.println("{");
+            _code.println("public:");
+            _code.println("  Application(const Id& n);");
+            _code.println("  const char* type() const;");
+            _code.println();
+            _code.println("private:");
+
+            for (Channel c : pn.getChannelList()) {
+                if (c.getType().equals("fifo")) {
+                    _code.println("  Fifo<char> " + c.getName()
+                        + ";");
+                } else if (c.getType().equals("wfifo")) {
+                    System.out.println("Warning: YAPI visitor does not "
+                        + "support windowed FIFOs.");
+                }
+            }
+            _code.println();
+
+            for (Process p : pn.getProcessList()) {
+                _code.println("  " + p.getBasename() + "_wrapper "
+                        + p.getName() + ";");
+            }
+            _code.println("};");
+            file.close();
+
+
+            //create cpp file
+            filename = _dir + _delimiter + "application.cpp";
+            file = new FileOutputStream(filename);
+            _code = new CodePrintStream(file);
+
+            _code.println("#include \"application.h\"");
+            _code.println();
+            _code.println("Application::Application(const Id& n) :");
+            _code.print("  ProcessNetwork(n)");
+            for (Channel c : pn.getChannelList()) {
+                if (c.getType().equals("fifo")) {
+                    _code.print(",\n  " + c.getName() + "(id(\""
+                        + c.getName() + "\"))");
+                } else if (c.getType().equals("wfifo")) {
+                    System.out.println("Warning: YAPI visitor does not "
+                        + "support windowed FIFOs.");
+                }
+            }
+            for (Process p : pn.getProcessList()) {
+                _code.print(",\n  " + p.getName() + "(\""
+                        + p.getName() + "\", id(\"" + p.getName()
+                        + "\")");
+
+                for (Port port : p.getPortList()) {
+                    _code.print(", " + port.getPeerResource().getName());
+                }
+                _code.print(")");
+            }
+            _code.println();
+            _code.println("{ }");
+            _code.println();
+            _code.println("const char* Application::type() const");
+            _code.println("{");
+            _code.println("  return \"Application\";");
+            _code.println("}");
+        }
+        catch (Exception e) {
+            System.out.println("YapiModuleVisitor: "
+                    + "exception occured: " + e.getMessage());
+            e.printStackTrace();
+        }
+    }
+
+    protected CodePrintStream _code = null;
+    protected String _dir = null;
+    protected OutputStream _file;
+    protected CodePrintStream _pn;
+}
+