OSDN Git Service

refactoring.
authoriga <tosiki.iga@nifty.ne.jp>
Sun, 30 Mar 2014 13:02:48 +0000 (22:02 +0900)
committeriga <tosiki.iga@nifty.ne.jp>
Sun, 30 Mar 2014 13:02:48 +0000 (22:02 +0900)
jcfa/src/jp/igapyon/jcfa/JavaClassFileAnalyzer.java

index 34d8ec5..2d98765 100644 (file)
@@ -29,9 +29,7 @@ public class JavaClassFileAnalyzer {
                        System.out.println("Parent class: " + jc.getSuperclassName());\r
 \r
                        analyzeFields(jc);\r
-\r
                        analyzeMethods(jc);\r
-\r
                } catch (ClassFormatException e) {\r
                        e.printStackTrace();\r
                } catch (IOException e) {\r
@@ -43,107 +41,117 @@ public class JavaClassFileAnalyzer {
                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
-                       System.out.println("  Field:" + field.getName());\r
-                       String access = "";\r
-                       access += field.isPublic() ? "public " : "";\r
-                       access += field.isAbstract() ? "abstract " : "";\r
-                       access += field.isStatic() ? "static " : "";\r
-                       access += field.isFinal() ? "final " : "";\r
-                       System.out.println("    " + access);\r
-                       System.out.println("    " + field.getSignature());\r
+                       analyzeField(jc, field);\r
                }\r
        }\r
 \r
+       private void analyzeField(final JavaClass jc, final Field field) {\r
+               System.out.println("  Field:" + field.getName());\r
+               String access = "";\r
+               access += field.isPublic() ? "public " : "";\r
+               access += field.isAbstract() ? "abstract " : "";\r
+               access += field.isStatic() ? "static " : "";\r
+               access += field.isFinal() ? "final " : "";\r
+               System.out.println("    " + access);\r
+               System.out.println("    " + field.getSignature());\r
+       }\r
+\r
        private void analyzeMethods(final JavaClass jc) 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
-                       System.out.println("  Method:" + method.getName());\r
-                       final Code code = method.getCode();\r
-                       if (code == null) {\r
-                               continue;\r
+                       analyzeMethod(jc, method);\r
+\r
+               }\r
+       }\r
+\r
+       private void analyzeMethod(final JavaClass jc, final Method method)\r
+                       throws IOException {\r
+               System.out.println("  Method:" + method.getName());\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 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] + ": " + operands);\r
+                               // break;\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] + ": " + operands);\r
-                                       // break;\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, codes[pc + 1],\r
+                                                               codes[pc + 2]));\r
+                               break;\r
+                       }\r
+                       case Constants.LDC: {\r
+                               System.out.println("    " + pc + ": "\r
+                                               + Constants.OPCODE_NAMES[opcode] + ": "\r
+                                               + JcfaUtil.getConstantString(jc, codes[pc + 1]));\r
+                       }\r
+                               break;\r
+                       case Constants.INVOKEVIRTUAL:\r
+                       case Constants.INVOKESPECIAL: {\r
+                               final int operand = JcfaUtil.byte2UnsignedShort(codes[pc + 1],\r
+                                               codes[pc + 2]);\r
+                               System.out.println("    " + pc + ": "\r
+                                               + Constants.OPCODE_NAMES[opcode] + ": "\r
+                                               + JcfaUtil.getConstantMethodRefString(jc, operand));\r
+                       }\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\r
+                                               .byte2Int(codes[lookupOp++], codes[lookupOp++],\r
+                                                               codes[lookupOp++], codes[lookupOp++]);\r
+                               for (int index = 0; index < loopCount; index++) {\r
+                                       System.out.println("      "\r
+                                                       + JcfaUtil.byte2Int(codes[lookupOp++],\r
+                                                                       codes[lookupOp++], codes[lookupOp++],\r
+                                                                       codes[lookupOp++])\r
+                                                       + ":"\r
+                                                       + (JcfaUtil.byte2Int(codes[lookupOp++],\r
+                                                                       codes[lookupOp++], codes[lookupOp++],\r
+                                                                       codes[lookupOp++]) + pc));\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.println("    " + pc + ": "\r
-                                                       + Constants.OPCODE_NAMES[opcode] + ": "\r
-                                                       + JcfaUtil.getConstantString(jc, 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("    " + pc + ": "\r
-                                                       + Constants.OPCODE_NAMES[opcode] + ": "\r
-                                                       + JcfaUtil.getConstantMethodRefString(jc, 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.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++],\r
-                                                       codes[lookupOp++]);\r
-                                       for (int index = 0; index < loopCount; index++) {\r
-                                               System.out.println("      "\r
-                                                               + JcfaUtil.byte2Int(codes[lookupOp++],\r
-                                                                               codes[lookupOp++], codes[lookupOp++],\r
-                                                                               codes[lookupOp++])\r
-                                                               + ":"\r
-                                                               + (JcfaUtil.byte2Int(codes[lookupOp++],\r
-                                                                               codes[lookupOp++], codes[lookupOp++],\r
-                                                                               codes[lookupOp++]) + pc));\r
-                                       }\r
-\r
-                                       short diff2 = JcfaUtil.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] + " (" + operands\r
-                                                       + ")");\r
-                               }\r
-                                       break;\r
-                               }\r
-                               pc += operands;\r
+                               short diff2 = JcfaUtil.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] + " (" + operands\r
+                                               + ")");\r
+                       }\r
+                               break;\r
                        }\r
+                       pc += operands;\r
                }\r
        }\r
 }
\ No newline at end of file