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JiyoungSong1213JiyoungSong1213
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Add ASM and files for generating original and sliced bytecode
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‎.idea/modules/SIMVA-SoS.iml‎

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‎src/new main/Slicing/SIMVA-SoS.Slicing.iml‎

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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="module-library">
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<library>
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<CLASSES>
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<root url="jar://$USER_HOME$/workspace/ASMtest1/asm-6.0/lib/asm-6.0.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES />
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</library>
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</orderEntry>
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<orderEntry type="module-library">
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<library>
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<CLASSES>
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<root url="jar://$USER_HOME$/workspace/ASMtest1/asm-6.0/lib/asm-analysis-6.0.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES />
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</library>
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</orderEntry>
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<orderEntry type="module-library">
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<library>
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<CLASSES>
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<root url="jar://$USER_HOME$/workspace/ASMtest1/asm-6.0/lib/asm-commons-6.0.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES />
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</library>
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</orderEntry>
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<orderEntry type="module-library">
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<library>
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<CLASSES>
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<root url="jar://$USER_HOME$/workspace/ASMtest1/asm-6.0/lib/asm-tree-6.0.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES />
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</library>
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</orderEntry>
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<orderEntry type="module-library">
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<library>
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<CLASSES>
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<root url="jar://$USER_HOME$/workspace/ASMtest1/asm-6.0/lib/asm-util-6.0.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES />
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</library>
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</orderEntry>
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<orderEntry type="module-library">
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<library>
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<CLASSES>
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<root url="jar://$USER_HOME$/workspace/ASMtest1/asm-6.0/lib/asm-xml-6.0.jar!/" />
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</CLASSES>
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<JAVADOC />
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<SOURCES />
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</library>
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</orderEntry>
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</component>
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</module>

‎src/new main/Slicing/src/OriginalBytecodeGen.java‎

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import java.io.File;
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import java.io.IOException;
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import java.io.PrintWriter;
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import org.objectweb.asm.ClassReader;
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import org.objectweb.asm.util.ASMifier;
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import org.objectweb.asm.util.TraceClassVisitor;
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public class OriginalBytecodeGen {
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public void genOriginalBytecode (String[] args) throws IOException {
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for (String arg: args) {
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new ClassReader(OriginalBytecodeGen.class.getResourceAsStream((arg+".class")))
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.accept(new TraceClassVisitor(null, new ASMifier(), new PrintWriter(new File((arg+".txt")))), 0);
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}
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}
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}

‎src/new main/Slicing/src/SlicedBytecodeGen.java‎

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import java.io.*;
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import java.util.HashMap;
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import java.util.HashSet;
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/**
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* @author Jiyoung Song
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* This class generates .java files that getnerate sliced bytecode
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*/
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public class SlicedBytecodeGen {
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/**
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* @param slicedFile - the name of sliced file generated from hammacher's javaslicer
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* @return slicedLinesInFile - hashmap that contains sliced line numbers for every class and method
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* @throws IOException
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*/
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public HashMap<String, HashSet<Integer>> getSlicedLinesPerFile (String slicedFile) throws IOException{
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HashMap<String, HashSet<Integer>> slicedLinesInFile = new HashMap<String, HashSet<Integer>>();
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BufferedReader bufferedReader = new BufferedReader(new FileReader(new File((slicedFile+".txt"))));
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String line = "";
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while ((line = bufferedReader.readLine()) != null) {
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String[] classNameAndLineNum = line.split(":");
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String[] lineNumAndInst = classNameAndLineNum[1].split(" ");
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if (slicedLinesInFile.containsKey(classNameAndLineNum[0])) {
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HashSet<Integer> lineNumbers = slicedLinesInFile.get(classNameAndLineNum[0]);
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lineNumbers.add(Integer.parseInt(lineNumAndInst[0]));
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} else {
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HashSet<Integer> lineNumbers = new HashSet<Integer>();
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lineNumbers.add(Integer.parseUnsignedInt(lineNumAndInst[0]));
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slicedLinesInFile.put(classNameAndLineNum[0],lineNumbers);
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}
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}
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return slicedLinesInFile;
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}
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/**
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*
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* @param slicedFile
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* @param subjectFiles - the name list of files that is target of slicing
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* @throws IOException
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*/
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public void genSlicedClassFileGenerator (String slicedFile, String[] subjectFiles) throws IOException {
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for(String subjectFile: subjectFiles) {
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PrintWriter printWriter = new PrintWriter(new File((subjectFile+".java")));
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printWriter.println("import java.io.FileOutputStream;");
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BufferedReader bufferedReader = new BufferedReader(new FileReader(new File((subjectFile+".txt"))));
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boolean isSliced = true;
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String line = "";
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while ((line = bufferedReader.readLine()) != null) {
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if (line.contains("public static byte[] dump () throws Exception {")) {
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printWriter.println("public static void main(final String args[]) throws Exception {");
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printWriter.println("FileOutputStream fos = new FileOutputStream(\"SlicingExample.class\");");
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printWriter.println("fos.write(dump());");
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printWriter.println("fos.close();");
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printWriter.println("}");
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isSliced = true;
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} else if (line.contains("mv.visitLineNumber")) {
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}
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if (isSliced)
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printWriter.println(line);
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}
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}
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}
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}

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