rebuilding head

[mir.git] / source / mir / util / generator / ReflectionGeneratorFunctionAdapter.java

diff --git a/source/mir/util/generator/ReflectionGeneratorFunctionAdapter.java b/source/mir/util/generator/ReflectionGeneratorFunctionAdapter.java
new file mode 100755 (executable)
index 0000000..1e98f7c
--- /dev/null
+++ b/source/mir/util/generator/ReflectionGeneratorFunctionAdapter.java
@@ -0,0 +1,75 @@
+/*\r
+ * Copyright (C) 2001, 2002 The Mir-coders group\r
+ *\r
+ * This file is part of Mir.\r
+ *\r
+ * Mir is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * Mir is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with Mir; if not, write to the Free Software\r
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
+ *\r
+ * In addition, as a special exception, The Mir-coders gives permission to link\r
+ * the code of this program with  any library licensed under the Apache Software License,\r
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library\r
+ * (or with modified versions of the above that use the same license as the above),\r
+ * and distribute linked combinations including the two.  You must obey the\r
+ * GNU General Public License in all respects for all of the code used other than\r
+ * the above mentioned libraries.  If you modify this file, you may extend this\r
+ * exception to your version of the file, but you are not obligated to do so.\r
+ * If you do not wish to do so, delete this exception statement from your version.\r
+ */\r
+package mir.util.generator;\r
+\r
+import mir.generator.Generator;\r
+import mir.generator.GeneratorExc;\r
+import mir.generator.GeneratorFailure;\r
+import mir.util.ReflectionRoutines;\r
+\r
+import java.util.List;\r
+import java.lang.reflect.InvocationTargetException;\r
+\r
+import org.apache.commons.beanutils.MethodUtils;\r
+\r
+/**\r
+ * Class to adapt methods with some name to a\r
+ * {@link Generator.Function}\r
+ */\r
+\r
+public class ReflectionGeneratorFunctionAdapter implements Generator.Function {\r
+  private Object target;\r
+  private String methodName;\r
+\r
+  public ReflectionGeneratorFunctionAdapter(Object aTarget, String aMethodName) {\r
+    target = aTarget;\r
+    methodName = aMethodName;\r
+  }\r
+\r
+  /** {@inheritDoc} */\r
+  public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {\r
+    try {\r
+      return ReflectionRoutines.invokeMethod(target, methodName, aParameters.toArray());\r
+    }\r
+    catch (InvocationTargetException t) {\r
+      if (t.getTargetException() instanceof GeneratorExc) {\r
+        throw (GeneratorExc) t.getTargetException();\r
+      }\r
+\r
+      throw new GeneratorFailure(t.getTargetException());\r
+    }\r
+    catch (IllegalAccessException t) {\r
+      throw new GeneratorFailure(t);\r
+    }\r
+    catch (NoSuchMethodException t) {\r
+      throw new GeneratorFailure(t);\r
+    }\r
+  }\r
+}\r