List of usage examples for org.aspectj.apache.bcel.generic InstructionList getInstructionHandles
public InstructionHandle[] getInstructionHandles()
From source file:br.jabuti.lookup.java.bytecode.RClassCode.java
License:Open Source License
/** Retorna uma lista de metodos chamados por um dado metodo * desta classe.// w w w. j a va 2 s.c o m * @param assinatura - a assinatura do metodo que se deseja analisar * @return a lista de metodos chamados pelo metodo passado como argumento. * Se o metodo solicitado nao for encontrado na classe, retorna null. */ public String[] getCalledMethods(String assinatura) { JavaClass jc = this.getTheClass(); Method[] mv = jc.getMethods(); Method m = null; String met = new String(); int i; for (i = 0; i < mv.length; i++) { m = mv[i]; met = jc.getClassName() + "." + mv[i].getName() + mv[i].getSignature(); System.out.println("Metodo Aplicao = " + met); System.out.println("Metodo Parametro = " + assinatura); if (met.equals(assinatura)) break; } if (i == mv.length) return null; ConstantPoolGen cp = new ConstantPoolGen(jc.getConstantPool()); MethodGen mg = new MethodGen(m, jc.getClassName(), cp); InstructionList il = mg.getInstructionList(); InstructionHandle[] ih = il.getInstructionHandles(); Vector v = new Vector(); for (int x = 0; x < ih.length; x++) { Instruction ins = ih[x].getInstruction(); if (ins instanceof InvokeInstruction) { InvokeInstruction invoke = (InvokeInstruction) ins; String s = invoke.getClassName(cp) + "." + invoke.getMethodName(cp) + invoke.getSignature(cp); //System.out.println("gettype = " + invoke.getClassType(cp)); System.out.println("metodo retornado = " + s); v.add(s); } } return (String[]) v.toArray(new String[0]); }
From source file:br.jabuti.probe.desktop.DefaultProbeInsert.java
License:Open Source License
private JavaClass doDefaultInstrument(JavaClass java_class, String className) throws InvalidInstructionException, InvalidStackArgument { ClassGen cg = new ClassGen(java_class); ConstantPoolGen cp = cg.getConstantPool(); Method[] methods = cg.getMethods(); // System.out.println( "Instrumenting class: " + className + // " cfg option: " + typeOfCFG ); for (int i = 0; i < methods.length; i++) { try {/*from w w w.j a v a 2s .c om*/ MethodGen mg = new MethodGen(methods[i], cg.getClassName(), cp); // System.out.println( "\tCurrent method: " + mg.getName() ); // does not instrument static initializations or abstract methods if ((methods[i].getName().equals("<clinit>")) || (methods[i].isAbstract())) { continue; } InstructionList il = mg.getInstructionList(); InstructionHandle[] ihVec = il.getInstructionHandles(); int[] ihOffset = il.getInstructionPositions(); ASMInstrumenter gi = new ASMInstrumenter(mg, cg, cp); int nextLocal = mg.getMaxLocals() + 1; CFG gfc = new CFG(mg, cg); // gfc.releaseInstructionGraph(); // free some memory HashSet jahFoi = new HashSet(); // controla quas nos jah foram instrumentados // insert probes at the end of each node in a constructor if (methods[i].getName().equals("<init>")) { CFGNode superNode = null; // acha a chamada ao super for (int m = 0; m < gfc.size(); m++) { CFGNode ey = (CFGNode) gfc.elementAt(m); if (ey instanceof CFGSuperNode) { superNode = ey; break; } } // acha os nos que veem antes da chamada ao super // System.out.println( "Instrumentando classe: " + cg.getClassName() ); // System.out.println( gfc ); gfc.findIDFT(false, superNode); InstructionHandle ih = InstructionList.findHandle(ihVec, ihOffset, ihOffset.length, superNode.getEnd()); gi.insertAfter(ih, "aload_0 " + // empilha o objeto " ldc \"" + className + "\"" + // empilha o nome da classe " ldc " + i + // empilha o numero do metodo " lconst_0 " + // empilha aninhamento que para construtor // eh sempre 0 " ldc " + // empilha o numero do no "\"" + superNode.getNumber() + "\" " + "invokestatic " + getProbeClass() + " probe \"(Ljava/lang/Object;" + "Ljava/lang/String;IJLjava/lang/Object;)V\""); jahFoi.add(ih); // coloca a instrumentacao em cada no for (int m = 0; m < gfc.size(); m++) { CFGNode ey = (CFGNode) gfc.elementAt(m); // if marked means it is befor the super if (ey.getMark()) { continue; } ih = InstructionList.findHandle(ihVec, ihOffset, ihOffset.length, ey.getStart()); // System.out.println("No: " + ey); // System.out.println("Inicio do noh: " + ih); // System.out.println("Inicio do noh: " + ey.getStart()); if (!jahFoi.contains(ih)) { jahFoi.add(ih); gi.insertBefore(ih, "aload_0 " + // empilha o objeto " ldc \"" + className + "\"" + // empilha o nome da classe " ldc " + i + // empilha o numero do metodo " lconst_0 " + // empilha aninhamento que para construtor // eh sempre 0 " ldc " + // empilha o numero do no "\"" + ey.getNumber() + "\" " + "invokestatic " + getProbeClass() + " probe \"(Ljava/lang/Object;" + "Ljava/lang/String;IJLjava/lang/Object;)V\""); } } } else { // in this case the method is an ordinary method String probStat = null, method = null; if (mg.isStatic()) { probStat = ""; method = ""; } else { probStat = "aload_0"; method = "Ljava/lang/Object;"; } for (int m = 0; m < gfc.size(); m++) { CFGNode gn = (CFGNode) gfc.elementAt(m); InstructionHandle ih = InstructionList.findHandle(ihVec, ihOffset, ihOffset.length, gn.getStart()); if (gfc.isEntryNode(gn)) { String s = "invokestatic " + getProbeClass() + " getNest \"()J\"" + " lstore " + nextLocal; gi.addBefore(ih, s); } String s = probStat + " ldc \"" + className + "\"" + // empilha o nome da classe " ldc " + i + // empilha o numero do metodo " lload " + nextLocal + // empilha nivel de aninhamento " ldc " + // empilha o numero do no "\"" + gn.getNumber() + "\" " + "invokestatic " + getProbeClass() + " probe \"(" + method + "Ljava/lang/String;IJLjava/lang/Object;)V\""; if (!jahFoi.contains(ih)) { jahFoi.add(ih); gi.insertBefore(ih, s); } } int stackSize = mg.getMaxStack(); // Tentativa de contornar os erros do BCEL que n<E3>o altera corretamente o // tamanho da pilha if (stackSize < 6) { mg.setMaxStack(stackSize + 6); } } methods[i] = mg.getMethod(); } catch (ParseException e) { System.out.println(className); System.err.println("Parser error " + e.getMessage()); } } int newIndex = cp.addUtf8(JABUTI_DEFAULT_INSTR_ATTRIBUTE); Attribute atr = new Unknown(newIndex, JABUTI_DEFAULT_INSTR_ATTRIBUTE.length(), JABUTI_DEFAULT_INSTR_ATTRIBUTE.getBytes(), cp.getConstantPool()); cg.setConstantPool(cp); cg.addAttribute(atr); cg.setMethods(methods); return (cg.getJavaClass()); }
From source file:br.jabuti.util.InstructCtrl.java
License:Open Source License
/** Given a MethodGen object and an integer representing an offset, * finds the InstructionHandle corresponding to that offset * * @param mg The MethodGen where to search the instruction * @param offset The offset of the instruction *//*from w w w . j ava 2 s .c om*/ static public InstructionHandle findInstruction(MethodGen mg, int offset) { InstructionList il = mg.getInstructionList(); int[] v = il.getInstructionPositions(); return InstructionList.findHandle(il.getInstructionHandles(), v, v.length, offset); }