/**
* Factory method, equivalent to a "fromXML" for step creation. Looks for a class with the same
* name as the XML tag, with the first letter capitalized. For example, <call /> is
* abbot.script.Call.
*/
public static Step createStep(Resolver resolver, Element el) throws InvalidScriptException {
String tag = el.getName();
Map attributes = createAttributeMap(el);
String name = tag.substring(0, 1).toUpperCase() + tag.substring(1);
if (tag.equals(TAG_WAIT)) {
attributes.put(TAG_WAIT, "true");
name = "Assert";
}
try {
name = "abbot.script." + name;
Log.debug("Instantiating " + name);
Class cls = Class.forName(name);
try {
// Steps with contents require access to the XML element
Class[] argTypes = new Class[] {Resolver.class, Element.class, Map.class};
Constructor ctor = cls.getConstructor(argTypes);
return (Step) ctor.newInstance(new Object[] {resolver, el, attributes});
} catch (NoSuchMethodException nsm) {
// All steps must support this ctor
Class[] argTypes = new Class[] {Resolver.class, Map.class};
Constructor ctor = cls.getConstructor(argTypes);
return (Step) ctor.newInstance(new Object[] {resolver, attributes});
}
} catch (ClassNotFoundException cnf) {
String msg = Strings.get("step.unknown_tag", new Object[] {tag});
throw new InvalidScriptException(msg);
} catch (InvocationTargetException ite) {
Log.warn(ite);
throw new InvalidScriptException(ite.getTargetException().getMessage());
} catch (Exception exc) {
Log.warn(exc);
throw new InvalidScriptException(exc.getMessage());
}
}
public <BLOCK extends Block> BLOCK newBlock(
String name, Class<BLOCK> cls, Class itemClass, String title) {
try {
int id = config.getBlock(name, 4095).getInt();
Constructor<BLOCK> ctor = cls.getConstructor(int.class);
BLOCK block = ctor.newInstance(id);
String qualName = assetKey + ":" + name;
block.setUnlocalizedName(qualName);
// block.func_111022_d(qualName.toLowerCase()); // Set default icon name
// block.func_111022_d(qualName); // Set default icon name
block.setTextureName(qualName); // Set default icon name
GameRegistry.registerBlock(block, itemClass);
if (title != null) {
LanguageRegistry.addName(block, title);
if (clientSide) {
// System.out.printf("%s: BaseMod.newBlock: %s: creative tab = %s\n",
// this, block.getUnlocalizedName(), block.getCreativeTabToDisplayOn());
if (block.getCreativeTabToDisplayOn() == null && !title.startsWith("["))
block.setCreativeTab(CreativeTabs.tabMisc);
}
}
if (block instanceof IBlock) registeredBlocks.add((IBlock) block);
return block;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Create the default projection for the default class
*
* @return a default projection
*/
private ProjectionImpl makeDefaultProjection() {
// the default constructor
try {
Constructor c = projClass.getConstructor(VOIDCLASSARG);
return (ProjectionImpl) c.newInstance(VOIDOBJECTARG);
} catch (Exception ee) {
System.err.println(
"ProjectionManager makeDefaultProjection failed to construct class " + projClass);
System.err.println(" " + ee);
return null;
}
}
/** {@inheritDoc} */
@Override
public HadoopJob createJob(Class<? extends HadoopJob> jobCls, HadoopJobId jobId, IgniteLogger log)
throws IgniteCheckedException {
assert jobCls != null;
try {
Constructor<? extends HadoopJob> constructor =
jobCls.getConstructor(HadoopJobId.class, HadoopDefaultJobInfo.class, IgniteLogger.class);
return constructor.newInstance(jobId, this, log);
}
// NB: java.lang.NoClassDefFoundError may be thrown from Class#getConstructor() call.
catch (Throwable t) {
if (t instanceof Error) throw (Error) t;
throw new IgniteCheckedException(t);
}
}
private static final Record getTypedObject(int type) {
if (type < 0 || type > knownRecords.length) return unknownRecord.getObject();
if (knownRecords[type] != null) return knownRecords[type];
/* Construct the class name by putting the type before "Record". */
String s =
Record.class.getPackage().getName() + "." + Type.string(type).replace('-', '_') + "Record";
try {
Class c = Class.forName(s);
Constructor m = c.getDeclaredConstructor(emptyClassArray);
knownRecords[type] = (Record) m.newInstance(emptyObjectArray);
} catch (ClassNotFoundException e) {
/* This is normal; do nothing */
} catch (Exception e) {
if (Options.check("verbose")) System.err.println(e);
}
if (knownRecords[type] == null) knownRecords[type] = unknownRecord.getObject();
return knownRecords[type];
}
public static void main(String[] args) throws Exception {
FileInputStream fis = new FileInputStream("t.ser");
ObjectInputStream ois = new ObjectInputStream(fis);
Constructor templateCtor =
com.sun.org.apache.xalan.internal.xsltc.trax.TemplatesImpl.class
.getDeclaredConstructors()[2];
templateCtor.setAccessible(true);
System.out.println(templateCtor);
byte[] newByteCode = getBytes("EvilTranslet.class");
byte[] helper = getBytes("EvilTranslet$1.class");
com.sun.org.apache.xalan.internal.xsltc.trax.TemplatesImpl template =
(com.sun.org.apache.xalan.internal.xsltc.trax.TemplatesImpl)
templateCtor.newInstance(
new byte[][] {newByteCode, helper},
"GregorSamsor",
null,
0,
new com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl());
// writeField(template, "_bytecodes", new byte[][]{newByteCode, helper});
System.out.println(template);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(template);
byte[] bytes = bos.toByteArray();
System.out.print("{");
for (int i = 0; i < bytes.length; ++i) {
System.out.print(bytes[i]);
System.out.print(",");
}
System.out.println("}");
}
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int num = Integer.parseInt(br.readLine().trim());
Object o;
// Solution starts here
if (num < 1 || num > Math.pow(2, 30)) throw new Exception();
Solution ob = new Solution();
Class<?> c = Class.forName("Solution$Private");
Constructor<?> constructor = c.getDeclaredConstructor(Solution.class);
constructor.setAccessible(true);
o = constructor.newInstance(ob);
Method m = c.getDeclaredMethod("powerof2", new Class[] {int.class});
m.setAccessible(true);
String ans = (String) m.invoke(o, num);
System.out.println(num + " is " + ans);
// ends here
System.out.println(
"An instance of class: " + o.getClass().getSimpleName() + " has been created");
} // end of main
public <ITEM extends Item> ITEM newItem(String name, Class<ITEM> cls, String title) {
try {
int id = config.getItem(name, 31743).getInt();
Constructor<ITEM> ctor = cls.getConstructor(int.class);
ITEM item = ctor.newInstance(id);
String qualName = assetKey + ":" + name;
item.setUnlocalizedName(qualName);
// item.func_111206_d(qualName.toLowerCase()); // Set default icon name
// item.func_111206_d(qualName); // Set default icon name
item.setTextureName(qualName); // Set default icon name
LanguageRegistry.addName(item, title);
if (clientSide) {
if (item.getCreativeTab() == null) item.setCreativeTab(CreativeTabs.tabMisc);
}
// System.out.printf("BaseMod.newItem: %s unlocalizedName = %s title = %s\n",
// item, item.getUnlocalizedName(), title);
return item;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/** Reflect operations demo */
public static void reflect(Object obj) {
// `cls用于描述对象所属的类`
Class cls = obj.getClass();
print("Class Name: " + cls.getCanonicalName());
// `fields包含对象的所有属性`
Field[] fields = cls.getDeclaredFields();
print("List of fields:");
for (Field f : fields) {
print(String.format("%30s %15s", f.getType(), f.getName()));
}
// `methods包含对象的所有方法`
Method[] methods = cls.getDeclaredMethods();
print("List of methods:");
for (Method m : methods)
print(
String.format(
"%30s %15s %30s",
m.getReturnType(), m.getName(), Arrays.toString(m.getParameterTypes())));
Constructor[] constructors = cls.getConstructors();
print("List of contructors:");
for (Constructor c : constructors)
print(String.format("%30s %15s", c.getName(), Arrays.toString(c.getParameterTypes())));
}
public static void main(String[] args) throws Exception {
System.out.println(
"Checking that all known MBeans that are "
+ "NotificationBroadcasters have sane "
+ "MBeanInfo.getNotifications()");
System.out.println("Checking platform MBeans...");
checkPlatformMBeans();
URL codeBase = ClassLoader.getSystemResource("javax/management/MBeanServer.class");
if (codeBase == null) {
throw new Exception("Could not determine codeBase for " + MBeanServer.class);
}
System.out.println();
System.out.println("Looking for standard MBeans...");
String[] classes = findStandardMBeans(codeBase);
System.out.println("Testing standard MBeans...");
for (int i = 0; i < classes.length; i++) {
String name = classes[i];
Class<?> c;
try {
c = Class.forName(name);
} catch (Throwable e) {
System.out.println(name + ": cannot load (not public?): " + e);
continue;
}
if (!NotificationBroadcaster.class.isAssignableFrom(c)) {
System.out.println(name + ": not a NotificationBroadcaster");
continue;
}
if (Modifier.isAbstract(c.getModifiers())) {
System.out.println(name + ": abstract class");
continue;
}
NotificationBroadcaster mbean;
Constructor<?> constr;
try {
constr = c.getConstructor();
} catch (Exception e) {
System.out.println(name + ": no public no-arg constructor: " + e);
continue;
}
try {
mbean = (NotificationBroadcaster) constr.newInstance();
} catch (Exception e) {
System.out.println(name + ": no-arg constructor failed: " + e);
continue;
}
check(mbean);
}
System.out.println();
System.out.println("Testing some explicit cases...");
check(new RelationService(false));
/*
We can't do this:
check(new RequiredModelMBean());
because the Model MBean spec more or less forces us to use the
names GENERIC and ATTRIBUTE_CHANGE for its standard notifs.
*/
checkRMIConnectorServer();
System.out.println();
if (!suspicious.isEmpty()) System.out.println("SUSPICIOUS CLASSES: " + suspicious);
if (failed.isEmpty()) System.out.println("TEST PASSED");
else {
System.out.println("TEST FAILED: " + failed);
System.exit(1);
}
}
static Provider getSunPKCS11(String config) throws Exception {
Class clazz = Class.forName("sun.security.pkcs11.SunPKCS11");
Constructor cons = clazz.getConstructor(new Class[] {String.class});
Object obj = cons.newInstance(new Object[] {config});
return (Provider) obj;
}
private static void generateCtor(
ClassFileWriter cfw, String adapterName, String superName, Constructor<?> superCtor) {
short locals = 3; // this + factory + delegee
Class<?>[] parameters = superCtor.getParameterTypes();
// Note that we swapped arguments in app-facing constructors to avoid
// conflicting signatures with serial constructor defined below.
if (parameters.length == 0) {
cfw.startMethod(
"<init>",
"(Laurora/javascript/Scriptable;" + "Laurora/javascript/ContextFactory;)V",
ClassFileWriter.ACC_PUBLIC);
// Invoke base class constructor
cfw.add(ByteCode.ALOAD_0); // this
cfw.addInvoke(ByteCode.INVOKESPECIAL, superName, "<init>", "()V");
} else {
StringBuilder sig =
new StringBuilder(
"(Laurora/javascript/Scriptable;" + "Laurora/javascript/ContextFactory;");
int marker = sig.length(); // lets us reuse buffer for super signature
for (Class<?> c : parameters) {
appendTypeString(sig, c);
}
sig.append(")V");
cfw.startMethod("<init>", sig.toString(), ClassFileWriter.ACC_PUBLIC);
// Invoke base class constructor
cfw.add(ByteCode.ALOAD_0); // this
short paramOffset = 3;
for (Class<?> parameter : parameters) {
paramOffset += generatePushParam(cfw, paramOffset, parameter);
}
locals = paramOffset;
sig.delete(1, marker);
cfw.addInvoke(ByteCode.INVOKESPECIAL, superName, "<init>", sig.toString());
}
// Save parameter in instance variable "delegee"
cfw.add(ByteCode.ALOAD_0); // this
cfw.add(ByteCode.ALOAD_1); // first arg: Scriptable delegee
cfw.add(ByteCode.PUTFIELD, adapterName, "delegee", "Laurora/javascript/Scriptable;");
// Save parameter in instance variable "factory"
cfw.add(ByteCode.ALOAD_0); // this
cfw.add(ByteCode.ALOAD_2); // second arg: ContextFactory instance
cfw.add(ByteCode.PUTFIELD, adapterName, "factory", "Laurora/javascript/ContextFactory;");
cfw.add(ByteCode.ALOAD_0); // this for the following PUTFIELD for self
// create a wrapper object to be used as "this" in method calls
cfw.add(ByteCode.ALOAD_1); // the Scriptable delegee
cfw.add(ByteCode.ALOAD_0); // this
cfw.addInvoke(
ByteCode.INVOKESTATIC,
"aurora/javascript/JavaAdapter",
"createAdapterWrapper",
"(Laurora/javascript/Scriptable;"
+ "Ljava/lang/Object;"
+ ")Laurora/javascript/Scriptable;");
cfw.add(ByteCode.PUTFIELD, adapterName, "self", "Laurora/javascript/Scriptable;");
cfw.add(ByteCode.RETURN);
cfw.stopMethod(locals);
}
/**
* Unmarshall a Chromosome instance from a given XML Element representation.
*
* @param a_activeConfiguration current Configuration object
* @param a_xmlElement the XML Element representation of the Chromosome
* @return a new Chromosome instance setup with the data from the XML Element representation
* @throws ImproperXMLException if the given Element is improperly structured or missing data
* @throws UnsupportedRepresentationException if the actively configured Gene implementation does
* not support the string representation of the alleles used in the given XML document
* @throws GeneCreationException if there is a problem creating or populating a Gene instance
* @author Neil Rotstan
* @since 1.0
*/
public static Gene[] getGenesFromElement(
Configuration a_activeConfiguration, Element a_xmlElement)
throws ImproperXMLException, UnsupportedRepresentationException, GeneCreationException {
// Do some sanity checking. Make sure the XML Element isn't null and
// that it in fact represents a set of genes.
// -----------------------------------------------------------------
if (a_xmlElement == null || !(a_xmlElement.getTagName().equals(GENES_TAG))) {
throw new ImproperXMLException(
"Unable to build Chromosome instance from XML Element: "
+ "given Element is not a 'genes' element.");
}
List genes = Collections.synchronizedList(new ArrayList());
// Extract the nested gene elements.
// ---------------------------------
NodeList geneElements = a_xmlElement.getElementsByTagName(GENE_TAG);
if (geneElements == null) {
throw new ImproperXMLException(
"Unable to build Gene instances from XML Element: "
+ "'"
+ GENE_TAG
+ "'"
+ " sub-elements not found.");
}
// For each gene, get the class attribute so we know what class
// to instantiate to represent the gene instance, and then find
// the child text node, which is where the string representation
// of the allele is located, and extract the representation.
// -------------------------------------------------------------
int numberOfGeneNodes = geneElements.getLength();
for (int i = 0; i < numberOfGeneNodes; i++) {
Element thisGeneElement = (Element) geneElements.item(i);
thisGeneElement.normalize();
// Fetch the class attribute and create an instance of that
// class to represent the current gene.
// --------------------------------------------------------
String geneClassName = thisGeneElement.getAttribute(CLASS_ATTRIBUTE);
Gene thisGeneObject;
Class geneClass = null;
try {
geneClass = Class.forName(geneClassName);
try {
Constructor constr = geneClass.getConstructor(new Class[] {Configuration.class});
thisGeneObject = (Gene) constr.newInstance(new Object[] {a_activeConfiguration});
} catch (NoSuchMethodException nsme) {
// Try it by calling method newGeneInternal.
// -----------------------------------------
Constructor constr = geneClass.getConstructor(new Class[] {});
thisGeneObject = (Gene) constr.newInstance(new Object[] {});
thisGeneObject =
(Gene)
PrivateAccessor.invoke(
thisGeneObject, "newGeneInternal", new Class[] {}, new Object[] {});
}
} catch (Throwable e) {
throw new GeneCreationException(geneClass, e);
}
// Find the text node and fetch the string representation of
// the allele.
// ---------------------------------------------------------
NodeList children = thisGeneElement.getChildNodes();
int childrenSize = children.getLength();
String alleleRepresentation = null;
for (int j = 0; j < childrenSize; j++) {
Element alleleElem = (Element) children.item(j);
if (alleleElem.getTagName().equals(ALLELE_TAG)) {
alleleRepresentation = alleleElem.getAttribute("value");
}
if (children.item(j).getNodeType() == Node.TEXT_NODE) {
// We found the text node. Extract the representation.
// ---------------------------------------------------
alleleRepresentation = children.item(j).getNodeValue();
break;
}
}
// Sanity check: Make sure the representation isn't null.
// ------------------------------------------------------
if (alleleRepresentation == null) {
throw new ImproperXMLException(
"Unable to build Gene instance from XML Element: "
+ "value (allele) is missing representation.");
}
// Now set the value of the gene to that reflect the
// string representation.
// -------------------------------------------------
try {
thisGeneObject.setValueFromPersistentRepresentation(alleleRepresentation);
} catch (UnsupportedOperationException e) {
throw new GeneCreationException(
"Unable to build Gene because it does not support the "
+ "setValueFromPersistentRepresentation() method.");
}
// Finally, add the current gene object to the list of genes.
// ----------------------------------------------------------
genes.add(thisGeneObject);
}
return (Gene[]) genes.toArray(new Gene[genes.size()]);
}
/*
* Does the real work of creating an AppletAudioClip from an InputStream.
* This function is used by both constructors.
*/
void createAppletAudioClip(InputStream in) throws IOException {
// If we haven't initialized yet, we need to find the AudioClip constructor using reflection.
// We'll use com.sun.media.sound.JavaSoundAudioClip to implement AudioClip if the Java Sound
// extension is installed. Otherwise, we use sun.audio.SunAudioClip.
if (acConstructor == null) {
if (DEBUG) System.out.println("Initializing AudioClip constructor.");
try {
acConstructor =
(Constructor)
AccessController.doPrivileged(
new PrivilegedExceptionAction() {
public Object run()
throws NoSuchMethodException, SecurityException, ClassNotFoundException {
Class acClass = null;
try {
// attempt to load the Java Sound extension class JavaSoundAudioClip
acClass =
Class.forName(
"com.sun.media.sound.JavaSoundAudioClip",
true,
ClassLoader
.getSystemClassLoader()); // may throw ClassNotFoundException
if (DEBUG) System.out.println("Loaded JavaSoundAudioClip");
} catch (ClassNotFoundException e) {
acClass =
Class.forName(
"sun.audio.SunAudioClip",
true,
null); // may throw ClassNotFoundException
if (DEBUG) System.out.println("Loaded SunAudioClip");
}
Class[] parms = new Class[1];
parms[0] =
Class.forName(
"java.io.InputStream"); // may throw ClassNotFoundException
return acClass.getConstructor(
parms); // may throw NoSuchMethodException or SecurityException
}
});
} catch (PrivilegedActionException e) {
if (DEBUG) System.out.println("Got a PrivilegedActionException: " + e.getException());
// e.getException() may be a NoSuchMethodException, SecurityException, or
// ClassNotFoundException.
// however, we throw an IOException to avoid changing the interfaces....
throw new IOException("Failed to get AudioClip constructor: " + e.getException());
}
} // if not initialized
// Now instantiate the AudioClip object using the constructor we discovered above.
try {
Object[] args = new Object[] {in};
audioClip = (AudioClip) acConstructor.newInstance(args); // may throw InstantiationException,
// IllegalAccessException,
// IllegalArgumentException,
// InvocationTargetException
} catch (Exception e3) {
// no matter what happened, we throw an IOException to avoid changing the interfaces....
throw new IOException("Failed to construct the AudioClip: " + e3);
}
}