package jp.igapyon.jcfa;\r
\r
+import java.io.ByteArrayOutputStream;\r
+import java.io.File;\r
import java.io.IOException;\r
\r
import jp.igapyon.jcfa.util.JcfaUtil;\r
+import jp.igapyon.jcfa.util.JcfaWriteUtil;\r
+import jp.igapyon.jcfa.vo.JcfaClass;\r
+import jp.igapyon.jcfa.vo.JcfaCode;\r
+import jp.igapyon.jcfa.vo.JcfaField;\r
+import jp.igapyon.jcfa.vo.JcfaMethod;\r
+import jp.igapyon.jcfa.vo.JcfaUnit;\r
\r
import org.apache.bcel.Constants;\r
-/**\r
- * Apache Jakarta BCELを用いたクラスファイル(バイトコード)解析サンプル\r
- */\r
import org.apache.bcel.classfile.ClassFormatException;\r
import org.apache.bcel.classfile.ClassParser;\r
import org.apache.bcel.classfile.Code;\r
+import org.apache.bcel.classfile.ConstantValue;\r
+import org.apache.bcel.classfile.Field;\r
import org.apache.bcel.classfile.JavaClass;\r
import org.apache.bcel.classfile.Method;\r
+import org.apache.bcel.generic.Type;\r
\r
public class JavaClassFileAnalyzer {\r
- private static final String CLASS_MODULE = "./bin/test/TestJavaClass001.class";\r
+ protected JcfaUnit jcfaUnit = new JcfaUnit();\r
\r
public static final void main(final String[] args) {\r
- new JavaClassFileAnalyzer().process();\r
+ new JavaClassFileAnalyzer().parseDir(new File("./bin/test"));\r
+ new JavaClassFileAnalyzer().parseDir(new File(\r
+ "./bin/jp/igapyon/jcfa/vo"));\r
}\r
\r
- private final void process() {\r
- try {\r
- final JavaClass jc = new ClassParser(CLASS_MODULE).parse();\r
- System.out.println("Classname : " + jc.getClassName());\r
- System.out.println("Parent class: " + jc.getSuperclassName());\r
-\r
- final org.apache.bcel.classfile.Method[] methods = jc.getMethods();\r
- for (int indexMethod = 0; indexMethod < methods.length; indexMethod++) {\r
- final Method method = methods[indexMethod];\r
- System.out.println(" Method:" + method.getName());\r
- final Code code = method.getCode();\r
- if (code == null) {\r
- continue;\r
+ private void parseDir(final File dir) {\r
+ final File[] files = dir.listFiles();\r
+ if (files == null) {\r
+ return;\r
+ }\r
+ for (File file : files) {\r
+ if (file.isDirectory()) {\r
+ parseDir(file);\r
+ }\r
+ if (file.isFile()) {\r
+ if (file.getName().endsWith(".class")) {\r
+ new JavaClassFileAnalyzer().process(file, new File(\r
+ "./testJavaClass/output"));\r
}\r
+ }\r
+ }\r
+ }\r
+\r
+ private final void process(final File inputFile, final File outputDir) {\r
+ parseUnit(inputFile, outputDir);\r
+ }\r
\r
- final byte[] codes = code.getCode();\r
- for (int pc = 0; pc < codes.length; pc++) {\r
- final short opcode = JcfaUtil.byte2UnsignedByte(codes[pc]);\r
- short operands = Constants.NO_OF_OPERANDS[opcode];\r
- if (operands < 0) {\r
- System.out.println(" TODO negative value:"\r
- + Constants.OPCODE_NAMES[opcode] + ": "\r
- + operands);\r
- // break;\r
- }\r
-\r
- switch (opcode) {\r
- case Constants.RETURN: {\r
- System.out.println(" " + pc + ": "\r
- + Constants.OPCODE_NAMES[opcode]);\r
- break;\r
- }\r
- case Constants.GETSTATIC: {\r
- System.out.println(" "\r
- + pc\r
- + ": "\r
- + Constants.OPCODE_NAMES[opcode]\r
- + ": "\r
- + JcfaUtil.getConstantFieldrefString(jc,\r
- codes[pc + 1], codes[pc + 2]));\r
- break;\r
- }\r
- case Constants.LDC: {\r
- System.out\r
- .println(" "\r
- + pc\r
- + ": "\r
- + Constants.OPCODE_NAMES[opcode]\r
- + ": "\r
- + JcfaUtil.getConstantString(jc,\r
- codes[pc + 1]));\r
- }\r
- break;\r
- case Constants.INVOKEVIRTUAL:\r
- case Constants.INVOKESPECIAL: {\r
- final int operand = JcfaUtil.byte2UnsignedShort(\r
- codes[pc + 1], codes[pc + 2]);\r
- System.out.println(" "\r
- + pc\r
- + ": "\r
- + Constants.OPCODE_NAMES[opcode]\r
- + ": "\r
- + JcfaUtil.getConstantMethodRefString(jc,\r
- operand));\r
- }\r
- break;\r
- case Constants.LOOKUPSWITCH:\r
- int result = JcfaUtil.byte2Int(codes[pc + 1],\r
- codes[pc + 2], codes[pc + 3], codes[pc + 4]);\r
- System.out\r
- .println(" TODO skipping bytes: " + (result));\r
-\r
- int lookupOp = pc + 5;\r
-\r
- short diff = JcfaUtil\r
- .byte2UnsignedByte(codes[lookupOp++]);\r
- System.out.println(" TODO skipping bytes: " + (diff));\r
-\r
- int loopCount = JcfaUtil.byte2Int(codes[lookupOp++],\r
- codes[lookupOp++], codes[lookupOp++],\r
- codes[lookupOp++]);\r
- for (int index = 0; index < loopCount; index++) {\r
- System.out.println(" "\r
- + JcfaUtil.byte2Int(codes[lookupOp++],\r
- codes[lookupOp++],\r
- codes[lookupOp++],\r
- codes[lookupOp++])\r
- + ":"\r
- + (JcfaUtil.byte2Int(codes[lookupOp++],\r
- codes[lookupOp++],\r
- codes[lookupOp++],\r
- codes[lookupOp++]) + pc));\r
- }\r
-\r
- short diff2 = JcfaUtil\r
- .byte2UnsignedByte(codes[lookupOp++]);\r
- System.out.println(" TODO skipping bytes: " + (diff2));\r
-\r
- operands += (lookupOp - pc);\r
-\r
- break;\r
- default: {\r
- System.out.println(" " + pc + ": "\r
- + Constants.OPCODE_NAMES[opcode] + " ("\r
- + operands + ")");\r
- }\r
- break;\r
- }\r
- pc += operands;\r
+ private void parseUnit(final File inputFile, final File outputDir) {\r
+ try {\r
+ final JavaClass jc = new ClassParser(inputFile.getCanonicalPath())\r
+ .parse();\r
+ final JcfaClass jcfaClass = new JcfaClass();\r
+ jcfaUnit.getClassList().add(jcfaClass);\r
+\r
+ jcfaClass.setName(jc.getClassName());\r
+ jcfaClass.setExtendsName(jc.getSuperclassName());\r
+\r
+ jcfaClass.getComment().getCommentList()\r
+ .add("TODO import func. is missing.");\r
+ jcfaClass.getComment().setJavaDoc(true);\r
+\r
+ final String[] split = jc.getClassName().split("\\.");\r
+ File actualyTargetDir = outputDir;\r
+ if (split.length > 1) {\r
+ for (int index = 0; index < split.length - 1; index++) {\r
+ actualyTargetDir = new File(actualyTargetDir, split[index]);\r
+ actualyTargetDir.mkdirs();\r
}\r
}\r
+\r
+ parseFields(jc, jcfaClass);\r
+ parseMethods(jc, jcfaClass);\r
+\r
+ jcfaUnit.setTargetFile(new File(actualyTargetDir,\r
+ split[split.length - 1] + ".jcfa"));\r
+\r
+ JcfaWriteUtil.writeToFile(jcfaUnit);\r
} catch (ClassFormatException e) {\r
e.printStackTrace();\r
} catch (IOException e) {\r
e.printStackTrace();\r
}\r
}\r
+\r
+ private void parseFields(final JavaClass jc, final JcfaClass jcfaClass) {\r
+ final org.apache.bcel.classfile.Field[] fields = jc.getFields();\r
+ for (int indexField = 0; indexField < fields.length; indexField++) {\r
+ final Field field = fields[indexField];\r
+ parseField(jc, field, jcfaClass);\r
+ }\r
+ }\r
+\r
+ private void parseField(final JavaClass jc, final Field field,\r
+ final JcfaClass jcfaClass) {\r
+ final JcfaField jcfaField = new JcfaField();\r
+ jcfaField.setName(field.getName());\r
+ jcfaClass.getFieldList().add(jcfaField);\r
+\r
+ jcfaField.getComment().setJavaDoc(true);\r
+\r
+ // TODO type should be more collect.\r
+ jcfaField.setType(field.getType().toString());\r
+\r
+ String access = "";\r
+ access += field.isPublic() ? "public " : "";\r
+ access += field.isProtected() ? "protected " : "";\r
+ access += field.isPrivate() ? "private " : "";\r
+ access += field.isAbstract() ? "abstract " : "";\r
+ access += field.isStatic() ? "static " : "";\r
+ access += field.isVolatile() ? "volatile " : "";\r
+ access += field.isFinal() ? "final " : "";\r
+ jcfaField.setAccess(access);\r
+\r
+ final ConstantValue cv = field.getConstantValue();\r
+ if (cv != null) {\r
+ jcfaField.setConstantValue("\""\r
+ + jc.getConstantPool().getConstantString(\r
+ cv.getConstantValueIndex(),\r
+ Constants.CONSTANT_String) + "\"");\r
+\r
+ jcfaField\r
+ .getComment()\r
+ .getCommentList()\r
+ .add("FIXME other type support is missing. <br />Now only String.");\r
+ }\r
+ }\r
+\r
+ private void parseMethods(final JavaClass jc, final JcfaClass jcfaClass)\r
+ throws IOException {\r
+ final org.apache.bcel.classfile.Method[] methods = jc.getMethods();\r
+ for (int indexMethod = 0; indexMethod < methods.length; indexMethod++) {\r
+ final Method method = methods[indexMethod];\r
+ parseMethod(jc, method, jcfaClass);\r
+\r
+ }\r
+ }\r
+\r
+ /**\r
+ * Analyze method.\r
+ * \r
+ * @param jc\r
+ * @param method\r
+ * @param jcfaClass\r
+ * @throws IOException\r
+ */\r
+ private void parseMethod(final JavaClass jc, final Method method,\r
+ final JcfaClass jcfaClass) throws IOException {\r
+ final JcfaMethod jcfaMethod = new JcfaMethod();\r
+ jcfaClass.getMethodList().add(jcfaMethod);\r
+\r
+ jcfaMethod.setName(method.getName());\r
+ jcfaMethod.getComment().setJavaDoc(true);\r
+ if (jcfaMethod.getName().equals("<init>")) {\r
+ jcfaMethod.getComment().getCommentList()\r
+ .add("Default constructor.");\r
+ } else {\r
+ jcfaMethod.getComment().getCommentList().add("Method.");\r
+ }\r
+\r
+ for (Type type : method.getArgumentTypes()) {\r
+ jcfaMethod.getComment().getCommentList().add(type.toString());\r
+ jcfaMethod.getArugumentTypeList().add(type.toString());\r
+ }\r
+ jcfaMethod.setType(method.getReturnType().toString());\r
+\r
+ final Code code = method.getCode();\r
+ if (code == null) {\r
+ return;\r
+ }\r
+\r
+ final byte[] codes = code.getCode();\r
+ for (int pc = 0; pc < codes.length; pc++) {\r
+ final int operands = parseCodes(jc, method, jcfaClass, jcfaMethod,\r
+ pc, codes);\r
+ if (operands < 0) {\r
+ break;\r
+ }\r
+\r
+ pc += operands;\r
+ }\r
+ }\r
+\r
+ private int parseCodes(final JavaClass jc, final Method method,\r
+ final JcfaClass jcfaClass, final JcfaMethod jcfaMethod,\r
+ final int pc, final byte[] codes) throws IOException {\r
+ final JcfaCode jcfaCode = new JcfaCode();\r
+ jcfaMethod.getCodeList().add(jcfaCode);\r
+ jcfaCode.setJavaClass(jc);\r
+\r
+ jcfaCode.setOpcode(JcfaUtil.byte2UnsignedByte(codes[pc]));\r
+ jcfaCode.getComment()\r
+ .getCommentList()\r
+ .add("" + pc + ": "\r
+ + Constants.OPCODE_NAMES[jcfaCode.getOpcode()]);\r
+\r
+ short operands = Constants.NO_OF_OPERANDS[jcfaCode.getOpcode()];\r
+ if (operands < 0) {\r
+ jcfaCode.getComment()\r
+ .getCommentList()\r
+ .add("FIXME NO_OF_OPERANDS has negative value:"\r
+ + Constants.OPCODE_NAMES[jcfaCode.getOpcode()]\r
+ + ": " + operands);\r
+ return operands;\r
+ }\r
+\r
+ switch (jcfaCode.getOpcode()) {\r
+ case Constants.RETURN:\r
+ break;\r
+ case Constants.GETSTATIC:\r
+ break;\r
+ case Constants.LDC:\r
+ break;\r
+ case Constants.INVOKEVIRTUAL:\r
+ case Constants.INVOKESPECIAL:\r
+ break;\r
+ case Constants.LOOKUPSWITCH: {\r
+ int result = JcfaUtil.byte2Int(codes[pc + 1], codes[pc + 2],\r
+ codes[pc + 3], codes[pc + 4]);\r
+ System.out.println(" TODO skipping bytes: " + (result));\r
+\r
+ int lookupOp = pc + 5;\r
+\r
+ short diff = JcfaUtil.byte2UnsignedByte(codes[lookupOp++]);\r
+ System.out.println(" TODO skipping bytes: " + (diff));\r
+\r
+ int loopCount = JcfaUtil.byte2Int(codes[lookupOp++],\r
+ codes[lookupOp++], codes[lookupOp++], codes[lookupOp++]);\r
+\r
+ short diff2 = JcfaUtil.byte2UnsignedByte(codes[lookupOp++]);\r
+ jcfaCode.getComment().getCommentList()\r
+ .add(" TODO skipping bytes: " + (diff2));\r
+\r
+ operands += (lookupOp - pc);\r
+ }\r
+ break;\r
+ default:\r
+ break;\r
+ }\r
+\r
+ {\r
+ final ByteArrayOutputStream outStream = new ByteArrayOutputStream();\r
+ outStream.write(codes, pc, operands + 1);\r
+ outStream.flush();\r
+ jcfaCode.setCodes(outStream.toByteArray());\r
+ }\r
+ return operands;\r
+ }\r
}
\ No newline at end of file
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