[Fb-contrib-commit] SF.net SVN: fb-contrib: [626] trunk/fb-contrib/src/com/mebigfatguy/ fbcontrib/utils/SignatureUtils.java

[<dbr...@us...>]

Revision: 626
          http://svn.sourceforge.net/fb-contrib/?rev=626&view=rev
Author:   dbrosius
Date:     2006-09-03 20:08:46 -0700 (Sun, 03 Sep 2006)

Log Message:
-----------
collection of methods to help with method signatures.

Added Paths:
-----------
    trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/utils/SignatureUtils.java

Added: trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/utils/SignatureUtils.java
===================================================================
--- trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/utils/SignatureUtils.java	                        (rev 0)
+++ trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/utils/SignatureUtils.java	2006-09-04 03:08:46 UTC (rev 626)
@@ -0,0 +1,57 @@
+/*
+ * fb-contrib - Auxilliary detectors for Java programs
+ * Copyright (C) 2005-2006 Dave Brosius
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * 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
+ */
+package com.mebigfatguy.fbcontrib.utils;
+
+import org.apache.bcel.classfile.JavaClass;
+import org.apache.bcel.classfile.Method;
+
+public class SignatureUtils {
+	
+	public static boolean isInheritedMethod(JavaClass cls, String methodName, String signature) throws ClassNotFoundException {
+		JavaClass[] infs = cls.getAllInterfaces();
+		if (findInheritedMethod(infs, methodName, signature) != null) {
+			return true;
+		}
+		
+		JavaClass[] supers = cls.getSuperClasses();
+		for (int i = 0; i < supers.length; i++) {
+			if (supers[i].getClassName().equals("java/lang/Object")) {
+				supers[i] = null;
+			}
+		}
+		return findInheritedMethod(supers, methodName, signature) != null;
+	}
+	
+	private static JavaClass findInheritedMethod(JavaClass[] classes, String methodName, String signature) {
+		for (JavaClass cls : classes) {
+			if (cls != null) {
+				Method[] methods = cls.getMethods();
+				for (Method m : methods) {
+					if (!m.isPrivate()) {
+						if (m.getName().equals(methodName)) {
+							if (m.getSignature().equals(signature))
+								return cls;
+						}
+					}
+				}
+			}
+		}
+		return null;
+	}
+}


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