/**
* Insert the source code details, if available.
*
* @param ped The given program element.
*/
public void addSourcePosition(ProgramElementDoc ped, int indent) {
if (!addSrcInfo) return;
if (JDiff.javaVersion.startsWith("1.1")
|| JDiff.javaVersion.startsWith("1.2")
|| JDiff.javaVersion.startsWith("1.3")) {
return; // position() only appeared in J2SE1.4
}
try {
// Could cache the method for improved performance
Class c = ProgramElementDoc.class;
Method m = c.getMethod("position", null);
Object sp = m.invoke(ped, null);
if (sp != null) {
for (int i = 0; i < indent; i++) outputFile.print(" ");
outputFile.println("src=\"" + sp + "\"");
}
} catch (NoSuchMethodException e2) {
System.err.println("Error: method \"position\" not found");
e2.printStackTrace();
} catch (IllegalAccessException e4) {
System.err.println("Error: class not permitted to be instantiated");
e4.printStackTrace();
} catch (InvocationTargetException e5) {
System.err.println("Error: method \"position\" could not be invoked");
e5.printStackTrace();
} catch (Exception e6) {
System.err.println("Error: ");
e6.printStackTrace();
}
}
private void addClass(Class<?> c) {
if (classes.add(c)) {
if (c.getSuperclass() != null) {
addClass(c.getSuperclass());
}
for (Class<?> sc : c.getInterfaces()) {
addClass(sc);
}
for (Class<?> dc : c.getDeclaredClasses()) {
addClass(dc);
}
for (Method m : c.getDeclaredMethods()) {
addClass(m.getReturnType());
for (Class<?> p : m.getParameterTypes()) {
addClass(p);
}
}
if (c != void.class && dimensions(c) < 2) {
Class<?> arrayClass = Array.newInstance(c, 0).getClass();
arrayClasses.put(c, arrayClass);
addClass(arrayClass);
}
}
}
private void commandMethods(StringTokenizer t) throws NoSessionException {
if (!t.hasMoreTokens()) {
env.error("No class specified.");
return;
}
String idClass = t.nextToken();
ReferenceType cls = findClass(idClass);
if (cls != null) {
List<Method> methods = cls.allMethods();
OutputSink out = env.getOutputSink();
for (int i = 0; i < methods.size(); i++) {
Method method = methods.get(i);
out.print(method.declaringType().name() + " " + method.name() + "(");
Iterator<String> it = method.argumentTypeNames().iterator();
if (it.hasNext()) {
while (true) {
out.print(it.next());
if (!it.hasNext()) {
break;
}
out.print(", ");
}
}
out.println(")");
}
out.show();
} else {
// ### Should validate class name syntax.
env.failure("\"" + idClass + "\" is not a valid id or class name.");
}
}
private boolean invokeMethod(String line, PrintWriter out, Method method, String[] fields)
throws IllegalAccessException, InvocationTargetException {
ArrayList<Object> methodArguments = new ArrayList<Object>();
Class<?>[] parameterTypes = method.getParameterTypes();
if (parameterTypes.length == 2
&& parameterTypes[0] == PrintWriter.class
&& parameterTypes[1] == String.class) {
// FIXME: there must be a better way to say "I want to parse the line myself."
methodArguments.add(out);
methodArguments.add(line);
} else {
int nextField = 1;
for (Class<?> parameterType : parameterTypes) {
if (parameterType == PrintWriter.class) {
methodArguments.add(out);
} else if (parameterType == String.class) {
methodArguments.add(fields[nextField++]);
}
// FIXME: support other common types. "int" seems a likely first candidate.
}
}
method.invoke(handler, methodArguments.toArray());
return true;
}
void addIfTestMethod(Method m) {
if (m.getAnnotation(Test.class) == null) return;
if (!(m.getReturnType().equals(boolean.class) || m.getReturnType().equals(void.class)))
throw new RuntimeException("@Test method" + " must return boolean or void");
m.setAccessible(true); // In case it's private, etc.
add(m);
}
static {
try {
Map<String, Method> orderedMethods = new TreeMap<String, Method>();
for (Method m : MBeanServerConnection.class.getDeclaredMethods()) {
orderedMethods.put(m.toGenericString(), m);
}
Method[] methods = orderedMethods.values().toArray(new Method[orderedMethods.size()]);
Map<String, Method> asynchMethods = new TreeMap<String, Method>();
for (Method asynchMethod : AsynchJMXResponseListener.class.getDeclaredMethods()) {
asynchMethods.put(asynchMethod.getName(), asynchMethod);
}
Map<Method, Byte> m2k = new HashMap<Method, Byte>(methods.length);
Map<Byte, Method> k2m = new HashMap<Byte, Method>(methods.length);
Map<Byte, Method> k2am = new HashMap<Byte, Method>(methods.length);
for (int i = 0; i < methods.length; i++) {
m2k.put(methods[i], (byte) i);
k2m.put((byte) i, methods[i]);
Method asynchMethod = asynchMethods.get(methods[i].getName() + "Response");
if (asynchMethod == null)
throw new RuntimeException(
"Failed to find asynch handler for [" + methods[i].toGenericString() + "]",
new Throwable());
k2am.put((byte) i, asynchMethod);
}
methodToKey = Collections.unmodifiableMap(m2k);
keyToMethod = Collections.unmodifiableMap(k2m);
keyToAsynchMethod = Collections.unmodifiableMap(k2am);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
* Gets the ObjectLoader for the specified class.
*
* @param classtype the class
* @return the ObjectLoader
*/
public static XML.ObjectLoader getLoader(Class classtype) {
// look for registered loader first
ObjectLoader loader = (ObjectLoader) loaders.get(classtype);
// if no registered loader, look for static getLoader() method in class
if (loader == null) {
try {
Method method = classtype.getMethod("getLoader", (Class[]) null); // $NON-NLS-1$
if (method != null && Modifier.isStatic(method.getModifiers())) {
loader = (ObjectLoader) method.invoke(null, (Object[]) null);
if (loader != null) {
// register loader for future calls
setLoader(classtype, loader);
}
}
} catch (Exception ex) {
/** empty block */
}
}
// if still no loader found, use the default loader
if (loader == null) {
if (defaultLoader == null) {
defaultLoader = new XMLLoader();
}
loader = defaultLoader;
}
return loader;
}
private String doCommand(Object target, String method, String[] args) {
if (target == null) ; // System.err.println("Huh? Target should never be null " +
// domain);
else {
String cname = "_" + method.replaceAll("-", "_");
try {
Method m = target.getClass().getMethod(cname, new Class[] {String[].class});
return (String) m.invoke(target, new Object[] {args});
} catch (NoSuchMethodException e) {
// Ignore
} catch (InvocationTargetException e) {
if (e.getCause() instanceof IllegalArgumentException) {
domain.error(
"%s, for cmd: %s, arguments; %s",
e.getCause().getMessage(), method, Arrays.toString(args));
} else {
domain.warning("Exception in replace: %s", e.getCause());
e.getCause().printStackTrace();
}
} catch (Exception e) {
domain.warning("Exception in replace: " + e + " method=" + method);
e.printStackTrace();
}
}
return null;
}
Document parseDocument(String filename) throws Exception {
FileReader reader = new FileReader(filename);
String firstLine = new BufferedReader(reader).readLine();
reader.close();
Document document = null;
if (firstLine.startsWith("<?xml")) {
System.err.println("XML detected; using default XML parser.");
} else {
try {
Class nekoParserClass = Class.forName("org.cyberneko.html.parsers.DOMParser");
Object parser = nekoParserClass.newInstance();
Method parse = nekoParserClass.getMethod("parse", new Class[] {String.class});
Method getDocument = nekoParserClass.getMethod("getDocument", new Class[0]);
parse.invoke(parser, filename);
document = (Document) getDocument.invoke(parser);
} catch (Exception e) {
System.err.println("NekoHTML HTML parser not found; HTML4 support disabled.");
}
}
if (document == null) {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
try { // http://www.w3.org/blog/systeam/2008/02/08/w3c_s_excessive_dtd_traffic
factory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
} catch (ParserConfigurationException e) {
System.err.println("Warning: Could not disable external DTD loading");
}
DocumentBuilder builder = factory.newDocumentBuilder();
document = builder.parse(filename);
}
return document;
}
/** Creates the URL connection. */
protected URLConnection openConnection(URL url) throws IOException {
URLConnection conn = url.openConnection();
conn.setDoOutput(true);
if (_readTimeout > 0) {
try {
// only available for JDK 1.5
Method method = conn.getClass().getMethod("setReadTimeout", new Class[] {int.class});
if (method != null) method.invoke(conn, new Object[] {new Integer((int) _readTimeout)});
} catch (Throwable e) {
}
}
conn.setRequestProperty("Content-Type", "x-application/hessian");
if (_basicAuth != null) conn.setRequestProperty("Authorization", _basicAuth);
else if (_user != null && _password != null) {
_basicAuth = "Basic " + base64(_user + ":" + _password);
conn.setRequestProperty("Authorization", _basicAuth);
}
return conn;
}
/* gets target VM version from the given VMVersionMismatchException.
* Note that we need to reflectively call the method because of we may
* have got this from different classloader's namespace */
private static String getVMVersion(Throwable throwable)
throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
// assert isVMVersionMismatch(throwable), "not a VMVersionMismatch"
Class expClass = throwable.getClass();
Method targetVersionMethod = expClass.getMethod("getTargetVersion", new Class[0]);
return (String) targetVersionMethod.invoke(throwable);
}
// we set an observer to detect VirtualMachineImpl.dispose call
// and on dispose we add corresponding VirtualMachineImpl.class to
// free VirtualMachimeImpl Class list.
protected static void setVMDisposeObserver(final Object vm) {
try {
Method setDisposeObserverMethod =
vm.getClass()
.getDeclaredMethod("setDisposeObserver", new Class[] {java.util.Observer.class});
setDisposeObserverMethod.setAccessible(true);
setDisposeObserverMethod.invoke(
vm,
new Object[] {
new Observer() {
public void update(Observable o, Object data) {
if (DEBUG) {
System.out.println("got VM.dispose notification");
}
addFreeVMImplClass(vm.getClass());
}
}
});
} catch (Exception exp) {
if (DEBUG) {
System.out.println("setVMDisposeObserver() got an exception:");
exp.printStackTrace();
}
}
}
void enableLionFS() {
try {
String version = System.getProperty("os.version");
String[] tokens = version.split("\\.");
int major = Integer.parseInt(tokens[0]), minor = 0;
if (tokens.length > 1) minor = Integer.parseInt(tokens[1]);
if (major < 10 || (major == 10 && minor < 7))
throw new Exception("Operating system version is " + version);
Class fsuClass = Class.forName("com.apple.eawt.FullScreenUtilities");
Class argClasses[] = new Class[] {Window.class, Boolean.TYPE};
Method setWindowCanFullScreen = fsuClass.getMethod("setWindowCanFullScreen", argClasses);
setWindowCanFullScreen.invoke(fsuClass, this, true);
Class fsListenerClass = Class.forName("com.apple.eawt.FullScreenListener");
InvocationHandler fsHandler = new MyInvocationHandler(cc);
Object proxy =
Proxy.newProxyInstance(
fsListenerClass.getClassLoader(), new Class[] {fsListenerClass}, fsHandler);
argClasses = new Class[] {Window.class, fsListenerClass};
Method addFullScreenListenerTo = fsuClass.getMethod("addFullScreenListenerTo", argClasses);
addFullScreenListenerTo.invoke(fsuClass, this, proxy);
canDoLionFS = true;
} catch (Exception e) {
vlog.debug("Could not enable OS X 10.7+ full-screen mode:");
vlog.debug(" " + e.toString());
}
}
private static double toDouble(Object value) {
if (value instanceof Number) {
return ((Number) value).doubleValue();
} else if (value instanceof String) {
return ScriptRuntime.toNumber((String) value);
} else if (value instanceof Scriptable) {
if (value instanceof Wrapper) {
// XXX: optimize tail-recursion?
return toDouble(((Wrapper) value).unwrap());
} else {
return ScriptRuntime.toNumber(value);
}
} else {
Method meth;
try {
meth = value.getClass().getMethod("doubleValue", (Class[]) null);
} catch (NoSuchMethodException e) {
meth = null;
} catch (SecurityException e) {
meth = null;
}
if (meth != null) {
try {
return ((Number) meth.invoke(value, (Object[]) null)).doubleValue();
} catch (IllegalAccessException e) {
// XXX: ignore, or error message?
reportConversionError(value, Double.TYPE);
} catch (InvocationTargetException e) {
// XXX: ignore, or error message?
reportConversionError(value, Double.TYPE);
}
}
return ScriptRuntime.toNumber(value.toString());
}
}
protected void generateDelegateCode(
Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
String mname = method.getName();
if (jdbc4WrapperMethod(mname)) {
generateWrapperDelegateCode(intfcl, genclass, method, iw);
return;
}
Class retType = method.getReturnType();
iw.println("if (proxyConn != null) proxyConn.maybeDirtyTransaction();");
iw.println();
if (mname.equals("close")) {
iw.println("if (! this.isDetached())");
iw.println("{");
iw.upIndent();
iw.println("if (creator instanceof Statement)");
iw.upIndent();
iw.println(
"parentPooledConnection.markInactiveResultSetForStatement( (Statement) creator, inner );");
iw.downIndent();
iw.println("else if (creator instanceof DatabaseMetaData)");
iw.upIndent();
iw.println("parentPooledConnection.markInactiveMetaDataResultSet( inner );");
iw.downIndent();
iw.println("else if (creator instanceof Connection)");
iw.upIndent();
iw.println("parentPooledConnection.markInactiveRawConnectionResultSet( inner );");
iw.downIndent();
iw.println(
"else throw new InternalError(\042Must be Statement or DatabaseMetaData -- Bad Creator: \042 + creator);");
iw.println(
"if (creatorProxy instanceof ProxyResultSetDetachable) ((ProxyResultSetDetachable) creatorProxy).detachProxyResultSet( this );");
iw.println("this.detach();");
iw.println("inner.close();");
iw.println("this.inner = null;");
iw.downIndent();
iw.println("}");
} else if (mname.equals("getStatement")) {
iw.println("if (creator instanceof Statement)");
iw.upIndent();
iw.println("return (Statement) creatorProxy;");
iw.downIndent();
iw.println("else if (creator instanceof DatabaseMetaData)");
iw.upIndent();
iw.println("return null;");
iw.downIndent();
iw.println(
"else throw new InternalError(\042Must be Statement or DatabaseMetaData -- Bad Creator: \042 + creator);");
} else if (mname.equals("isClosed")) {
iw.println("return this.isDetached();");
} else super.generateDelegateCode(intfcl, genclass, method, iw);
}
static Method lookup(String method) {
for (Method m : Method.values()) {
if (m.toString().equalsIgnoreCase(method)) {
return m;
}
}
return null;
}
/**
* Given the name and parameters, invoke the method in the builder. This method is required to
* invoke the appropriate build method as instructed by the builder XML file.
*
* @param methodName the name of the method that we would like to invoke.
* @param paramClasses the types for each parameter.
* @param params the parameters of the method.
*/
protected void invokeMethod(String methodName, Class<?>[] paramClasses, Object[] params)
throws Exception {
if (DEBUG) {
configuration.root.printError("DEBUG: " + this.getClass().getName() + "." + methodName);
}
Method method = this.getClass().getMethod(methodName, paramClasses);
method.invoke(this, params);
}
static <T> T set(Class<T> interf, Object value) {
Properties p = new Properties();
Method ms[] = interf.getMethods();
for (Method m : ms) {
p.put(m.getName(), value);
}
return Configurable.createConfigurable(interf, (Map<Object, Object>) p);
}
private static int linearSearch(ObjArray methods, Symbol name, Symbol signature) {
int len = (int) methods.getLength();
for (int index = 0; index < len; index++) {
Method m = (Method) methods.getObjAt(index);
if (m.getSignature().equals(signature) && m.getName().equals(name)) {
return index;
}
}
return -1;
}
private static Method checkForCreatorMethod(Method m) {
if (m.getAnnotation(TestObjectCreate.class) == null) return null;
if (!m.getReturnType().equals(testClass))
throw new RuntimeException(
"@TestObjectCreate " + "must return instance of Class to be tested");
if ((m.getModifiers() & java.lang.reflect.Modifier.STATIC) < 1)
throw new RuntimeException("@TestObjectCreate " + "must be static.");
m.setAccessible(true);
return m;
}
public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
Object obj = null;
if (CLOSE_METHOD_NAME.equals(m.getName())) {
SimpleConnectionPool.pushConnectionBackToPool(this);
} else {
obj = m.invoke(m_originConnection, args);
}
lastAccessTime = System.currentTimeMillis();
return obj;
}
//
// Examine a single method to see if it raises SQLFeatureNotSupportedException.
//
private void vetMethod(
Object candidate,
Class iface,
Method method,
HashSet<String> unsupportedList,
HashSet<String> notUnderstoodList)
throws Exception {
try {
method.invoke(candidate, getNullArguments(method.getParameterTypes()));
// it's ok for the method to succeed
} catch (Throwable e) {
if (!(e instanceof InvocationTargetException)) {
recordUnexpectedError(candidate, iface, method, notUnderstoodList, e);
} else {
Throwable cause = e.getCause();
if (cause instanceof SQLFeatureNotSupportedException) {
boolean isExcludable = isExcludable(method);
if (!isExcludable) {
StackTraceElement[] stack = cause.getStackTrace();
int i = 0;
while (i < stack.length && !stack[i].getMethodName().equals("notImplemented")) {
++i;
}
while (i < stack.length && stack[i].getMethodName().equals("notImplemented")) {
++i;
}
if (i == stack.length) {
// cause.printStackTrace();
}
unsupportedList.add(
candidate.getClass().getName()
+ ": "
+ method
+ "@"
+ (i == stack.length ? "no source" : cause.getStackTrace()[i]));
} else {
}
} else if (cause instanceof SQLException) {
// swallow other SQLExceptions, caused by bogus args
} else if (cause instanceof NullPointerException) {
// swallow other NPEs, caused by bogus args
} else if (cause instanceof ArrayIndexOutOfBoundsException) {
// swallow these, caused by bogus args
} else {
recordUnexpectedError(candidate, iface, method, notUnderstoodList, cause);
}
}
}
}
private void dumpStack(ThreadReference thread, boolean showPC) {
// ### Check for these.
// env.failure("Thread no longer exists.");
// env.failure("Target VM must be in interrupted state.");
// env.failure("Current thread isn't suspended.");
// ### Should handle extremely long stack traces sensibly for user.
List<StackFrame> stack = null;
try {
stack = thread.frames();
} catch (IncompatibleThreadStateException e) {
env.failure("Thread is not suspended.");
}
// ### Fix this!
// ### Previously mishandled cases where thread was not current.
// ### Now, prints all of the stack regardless of current frame.
int frameIndex = 0;
// int frameIndex = context.getCurrentFrameIndex();
if (stack == null) {
env.failure("Thread is not running (no stack).");
} else {
OutputSink out = env.getOutputSink();
int nFrames = stack.size();
for (int i = frameIndex; i < nFrames; i++) {
StackFrame frame = stack.get(i);
Location loc = frame.location();
Method meth = loc.method();
out.print(" [" + (i + 1) + "] ");
out.print(meth.declaringType().name());
out.print('.');
out.print(meth.name());
out.print(" (");
if (meth.isNative()) {
out.print("native method");
} else if (loc.lineNumber() != -1) {
try {
out.print(loc.sourceName());
} catch (AbsentInformationException e) {
out.print("<unknown>");
}
out.print(':');
out.print(loc.lineNumber());
}
out.print(')');
if (showPC) {
long pc = loc.codeIndex();
if (pc != -1) {
out.print(", pc = " + pc);
}
}
out.println();
}
out.show();
}
}
private Method findPublicVoidMethod(Class<?> aClass, String methodName) {
for (Method method : aClass.getDeclaredMethods()) {
if (isPublic(method.getModifiers())
&& method.getReturnType() == void.class
&& methodName.equals(method.getName())) {
return method;
}
}
return null;
}
/**
* Computes the set of emit methods in the Assembler for a given IA32 opcode.
*
* @param emitters the set of all emit methods
* @param opcode the opcode being examined
*/
private static EmitterSet buildSetForOpcode(Method[] emitters, String opcode) {
EmitterSet s = new EmitterSet();
for (int i = 0; i < emitters.length; i++) {
Method m = emitters[i];
if (m.getName().startsWith("emit" + opcode + "_") || m.getName().equals("emit" + opcode)) {
s.add(new EmitterDescriptor(m.getName(), m.getParameterTypes()));
}
}
return s;
}
public void toggleLionFS() {
try {
Class appClass = Class.forName("com.apple.eawt.Application");
Method getApplication = appClass.getMethod("getApplication", (Class[]) null);
Object app = getApplication.invoke(appClass);
Method requestToggleFullScreen = appClass.getMethod("requestToggleFullScreen", Window.class);
requestToggleFullScreen.invoke(app, this);
} catch (Exception e) {
vlog.debug("Could not toggle OS X 10.7+ full-screen mode:");
vlog.debug(" " + e.toString());
}
}
@SuppressWarnings("unchecked")
private void addMethods(List list, boolean isStatic) {
int count = klass.getMethodCount(isStatic);
for (int i = 0; i != count; ++i) {
Method method = klass.getMethod(i, isStatic);
if (!method.isHosted()) {
MethodID mid = new MethodID(method.getOffset(), isStatic);
ProxyMethod proxyMethod = new ProxyMethod(mid, method);
list.add(proxyMethod);
}
}
}
/**
* This function instantiates an invariant class by using the <type>(PptSlice) constructor.
*
* @param theClass the invariant class to be instantiated
* @param sl the PptSlice representing the variables about which an invariant is determined
* @return an instance of the class in theClass if one can be constructed, else throw a
* RuntimeException
*/
private static Invariant instantiateClass(Class<? extends Invariant> theClass, PptSlice sl) {
try {
Method get_proto = theClass.getMethod("get_proto", new Class<?>[] {});
Invariant proto = (/*@Prototype*/ Invariant) get_proto.invoke(null, new Object[] {});
Invariant inv = proto.instantiate(sl);
return (inv);
} catch (Exception e) {
e.printStackTrace(System.out);
throw new RuntimeException(
"Error while instantiating invariant " + theClass.getName() + ": " + e.toString());
}
}
/**
* `使用反射机制调用方法`
*
* @param methodName Method name
* @param obj Object holder of the method
* @param paraType Array of parameter types
* @param paraValue Array of parameters
* @return Returned object of the method
*/
public static Object call(String methodName, Object obj, Class[] paraType, Object[] paraValue) {
try {
Class cls = obj.getClass();
Method method = cls.getDeclaredMethod(methodName, paraType);
// invoke() returns the object returned by the
// underlying method.
// It returns null, if the underlying method returns void.
return method.invoke(obj, paraValue);
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
/**
* This function returns the check_modified method from the class type provided.
*
* @param theClass the class in which to find the check_modified method
* @return the check_modified method if it exists
* @throws RuntimeException if check_modified does not exist.
*/
private static Method getCheckModified(Class<? extends Invariant> theClass) {
Method[] methods = theClass.getMethods();
Method currentMethod;
for (int i = 0; i < methods.length; i++) {
currentMethod = methods[i];
if (currentMethod.getName().lastIndexOf("check_modified")
!= -1) { // Method should be called check_modified
return currentMethod;
}
}
throw new RuntimeException("Cannot find check_modified method");
}