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Demo.java

package edu.ksu.cis.bandera.bofa;

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Bandera, a Java(TM) analysis and transformation toolkit           *
 * Copyright (C) 1999, 2000, 2001                                    *
 * Venkatesh Prasad Ranganath (rvprasad@cis.ksu.edu)                 *
 * All rights reserved.                                              *
 *                                                                   *
 * This work was done as a project in the SAnToS Laboratory,         *
 * Department of Computing and Information Sciences, Kansas State    *
 * University, USA (http://www.cis.ksu.edu/santos).                  *
 * It is understood that any modification not identified as such is  *
 * not covered by the preceding statement.                           *
 *                                                                   *
 * This work is free software; you can redistribute it and/or        *
 * modify it under the terms of the GNU Library General Public       *
 * License as published by the Free Software Foundation; either      *
 * version 2 of the License, or (at your option) any later version.  *
 *                                                                   *
 * This work 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 *
 * Library General Public License for more details.                  *
 *                                                                   *
 * You should have received a copy of the GNU Library General Public *
 * License along with this toolkit; if not, write to the             *
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,      *
 * Boston, MA  02111-1307, USA.                                      *
 *                                                                   *
 * Java is a trademark of Sun Microsystems, Inc.                     *
 *                                                                   *
 * To submit a bug report, send a comment, or get the latest news on *
 * this project and other SAnToS projects, please visit the web-site *
 *                http://www.cis.ksu.edu/santos                      *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

import ca.mcgill.sable.soot.*;
import ca.mcgill.sable.soot.jimple.*;
import ca.mcgill.sable.util.*;
import edu.ksu.cis.bandera.jjjc.CompilationManager;
import java.io.PrintWriter;
import org.apache.log4j.Category;

/*
 * Demo.java
 * $Id: Demo.java,v 1.1.1.1 2002/01/24 03:42:07 pserver Exp $
 */

/**
 * This class tests the implementation of BOFA and provides an example of how to
 * use BOFA.
 *
 * @author 
 * <a href="http://www.cis.ksu.edu/~rvprasadVenkatesh Prasad Ranganath</a>

 * @version $Name:  $($Revision: 1.1.1.1 $)
 */
class Demo {

    /**
     * Provides the logging capability through log4j.
     *
     */
    private static Category cat;

    static {
        cat = Category.getInstance("edu.ksu.cis.bandera.bofa.Demo");
    }

    /**
     * Analyzes the given collection of classes.
     *
     * @param storedClasses a collection of <code>SootClass</code>es
     * representing the classes to be analyzed.
     */
    static void analyze(Collection storedClasses)
    {
        SootClass sc;
        SootMethod sm;
        TempExpr expr = new TempExpr();
        TempStmt stmt = new TempStmt(expr);

        if (storedClasses == null || storedClasses.size() == 0) {
            System.out.println("You need to compile before you do " +
                               "Flow Analysis");
            return;
        }

        for (Iterator e = storedClasses.iterator(); e.hasNext();) {
            Object o = e.next();
            if (o instanceof java.lang.String) {
                cat.warn("SootClass not available.  -- " + o.getClass());
                continue;
            } // end of if (o instanceof java.lang.String)
            sc = (SootClass) o;
            System.out.println("###########################################" + 
                               "##########################"); 
            System.out.println("PROCESSING CLASS " + sc);
            for (Iterator methods =
                     sc.getMethods().iterator();methods.hasNext();) {
                sm = (SootMethod)methods.next();
                StmtList stmts;
                System.out.println("=======================================" + 
                                   "=======================================");
                System.out.println("PROCESSING METHOD " + sc + "." + sm);
                try {
                    stmts = ((JimpleBody)sm.getBody(Jimple.v())).getStmtList(); 
                } catch (RuntimeException ee) {
                    cat.warn(ee.getMessage());
                    continue;
                } // end of try-catch
                
                if (!FA.isReachable(sm)){
                    cat.warn("Unreachable method: " + sm);
                    continue;
                }
                expr.init(sm);
                stmt.init(sm, stmts);
                for (Iterator i = stmts.iterator(); i.hasNext();) {
                    Stmt s = (Stmt)i.next();
                    System.out.println("*********************************" + 
                                       "*********************************");
                    System.out.println("PROCESSING STMT " + s);
                    stmt.build(s);
                } // end of for ()
            } // end of for ()
        }
    }
    /**
     * Uses JJJC to generate the jimple representation of the given source files.
     *
     * @param args names of java source files.
     */
    static void jjjc (String[] args) {
        LinkedList classes = new LinkedList();
        for (int i = 1; i < args.length; i++) {
            classes.addLast(args[i].trim());
        }
        BOFA.compile(".", classes, new LinkedList());
        BOFA.analyze();
        BOFA.dumpFile(".");
        analyze(Util.convert("ca.mcgill.sable.util.VectorList", 
                             CompilationManager.getCompiledClasses().values())); 
    } // end of main ()
    /**
     * Entry point to the demo.
     *
     * @param args mode and arguments.  In case the mode is <i>jjjc</i> the
     * arguments need to be all the java source files to be used in compilation.
     * In case the mode is <i>soot</i> the arguments need to be the names of the
     * classes that need to be analyzed.
     */
    public static void main (String[] args) {
        if (args[0].equals("jjjc")) {
            jjjc(args);
        } else if (args[0].equals("soot")){
            soot(args);
        } else {
            System.out.println("Usage: java edu.ksu.cis.bandera.bofa.Demo" + 
                               "[jjjc|soot] classlist");
            System.exit(0);
        } // end of else
    } // end of main ()
    /**
     * Uses Soot to generate the jimple representation of the given classes.
     *
     * @param args names of the classes.
     */
    static void soot(String[] args) {
        SootClassManager scm = new SootClassManager();
        LinkedList storedclasses = new LinkedList();
        java.io.PrintWriter p = new java.io.PrintWriter(System.out, true);
        BuildAndStoreBody basb = 
            new BuildAndStoreBody(Jimple.v(), 
                                  new StoredBody(ClassFile.v())); 
        for (int i = 1; i < args.length; i++) {
            SootClass sc = scm.getClass(args[i]);
            sc.resolve();
            sc.printTo(basb, p);
            storedclasses.add(sc);
        }
        BOFA.analyze(scm, storedclasses);//scm.getClasses()
        analyze(storedclasses);
    }
}

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