Thread: [Fb-contrib-commit] SF.net SVN: fb-contrib: [717] trunk/fb-contrib (Page 2)

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Revision: 717
          http://svn.sourceforge.net/fb-contrib/?rev=717&view=rev
Author:   dbrosius
Date:     2006-12-09 23:16:06 -0800 (Sat, 09 Dec 2006)

Log Message:
-----------
initial checkin - new SCII detector

Added Paths:
-----------
    trunk/fb-contrib/samples/SCII_Sample.java
    trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/detect/SpoiledChildInterfaceImplementor.java

Added: trunk/fb-contrib/samples/SCII_Sample.java
===================================================================

--- trunk/fb-contrib/samples/SCII_Sample.java	                        (rev 0)
+++ trunk/fb-contrib/samples/SCII_Sample.java	2006-12-10 07:16:06 UTC (rev 717)
@@ -0,0 +1,33 @@
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+
+public class SCII_Sample extends OverEndulgentParent implements MouseListener
+{
+	public void mouseClicked(MouseEvent arg0) {
+		// TODO Auto-generated method stub
+		
+	}	
+}
+
+class OverEndulgentParent 
+{
+	public void mousePressed(MouseEvent arg0) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public void mouseReleased(MouseEvent arg0) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public void mouseEntered(MouseEvent arg0) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	public void mouseExited(MouseEvent arg0) {
+		// TODO Auto-generated method stub
+		
+	}
+}

Added: trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/detect/SpoiledChildInterfaceImplementor.java
===================================================================
--- trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/detect/SpoiledChildInterfaceImplementor.java	                        (rev 0)
+++ trunk/fb-contrib/src/com/mebigfatguy/fbcontrib/detect/SpoiledChildInterfaceImplementor.java	2006-12-10 07:16:06 UTC (rev 717)
@@ -0,0 +1,120 @@
+/*
+ * 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.detect;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.bcel.classfile.JavaClass;
+import org.apache.bcel.classfile.Method;
+
+import edu.umd.cs.findbugs.BugInstance;
+import edu.umd.cs.findbugs.BugReporter;
+import edu.umd.cs.findbugs.Detector;
+import edu.umd.cs.findbugs.ba.ClassContext;
+
+/**
+ * looks for classes that implement interfaces by relying on methods being 
+ * implemented in superclasses, even tho the superclass knows nothing about
+ * the interface being implemented by the child.
+ */
+public class SpoiledChildInterfaceImplementor implements Detector {
+
+	private BugReporter bugReporter;
+	
+	/**
+     * constructs a SCII detector given the reporter to report bugs on
+
+     * @param bugReporter the sync of bug reports
+     */		
+	public SpoiledChildInterfaceImplementor(BugReporter bugReporter) {
+		this.bugReporter = bugReporter;
+	}
+	
+	/** looks for classes that implement interfaces but don't provide those methods
+	 * 
+	 * @param classContext the context object of the currently parsed class
+	 */
+	public void visitClassContext(ClassContext classContext) {
+		try {
+			JavaClass cls = classContext.getJavaClass();
+			
+			if (cls.isAbstract() || cls.isInterface())
+				return;
+
+			if ("java.lang.Object".equals(cls.getSuperclassName()))
+				return;
+
+			JavaClass[] infs = cls.getInterfaces();
+			if (infs.length > 0) {
+				Set<String> clsMethods = buildMethodSet(cls);	
+				for (JavaClass inf : cls.getInterfaces()) {
+					Set<String> infMethods = buildMethodSet(inf);
+					if (infMethods.size() > 0) {
+						infMethods.removeAll(clsMethods);
+						if (infMethods.size() > 0) {
+							if (!cls.getSuperClass().implementationOf(inf)) {
+								BugInstance bi = new BugInstance(this, "SCII_SPOILED_CHILD_INTERFACE_IMPLEMENTATOR", NORMAL_PRIORITY)
+										   .addClass(cls)
+										   .addString("Implementing interface: " + inf.getClassName())
+										   .addString("Methods:");
+								for (String nameSig : infMethods)
+									bi.addString("\t" + nameSig);
+								
+								bugReporter.reportBug(bi);
+								return;
+							}
+						}
+					}
+				}
+			}
+			
+		} catch (ClassNotFoundException cnfe) {
+			bugReporter.reportMissingClass(cnfe);
+		}
+	}
+
+	/**
+	 * required for implementing the interface
+	 */
+	public void report() {
+	}
+	
+	/**
+	 * builds a set of all non constructor or static initializer method/signatures
+	 * 
+	 * @param cls the class to build the method set from
+	 * @return a set of method names/signatures
+	 */
+	public Set<String> buildMethodSet(JavaClass cls) {
+		Set<String> methods = new HashSet<String>();
+		
+		for (Method m : cls.getMethods()) {
+			String methodName = m.getName();
+			if (!"<init>".equals(methodName) && !"<clinit>".equals(methodName)) {
+				methods.add(methodName + ":" + m.getSignature());
+			}
+		}
+		
+		return methods;
+	}
+
+	
+
+}


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Thread: [Fb-contrib-commit] SF.net SVN: fb-contrib: [717] trunk/fb-contrib (Page 2)

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