/**
* Gets the datatype of the object.
*
* @param obj the object
* @return the type
*/
public static String getDataType(Object obj) {
if (obj == null) {
return null;
}
if (obj instanceof String) {
return "string"; //$NON-NLS-1$
} else if (obj instanceof Collection) {
return "collection"; //$NON-NLS-1$
} else if (obj.getClass().isArray()) {
// make sure ultimate component class is acceptable
Class componentType = obj.getClass().getComponentType();
while (componentType.isArray()) {
componentType = componentType.getComponentType();
}
String type = componentType.getName();
if (type.indexOf(".") == -1
&& "intdoubleboolean".indexOf(type) == -1) { // $NON-NLS-1$ //$NON-NLS-2$
return null;
}
return "array"; //$NON-NLS-1$
} else if (obj instanceof Double) {
return "double"; //$NON-NLS-1$
} else if (obj instanceof Integer) {
return "int"; //$NON-NLS-1$
} else {
return "object"; //$NON-NLS-1$
}
}
private static Object parseValue(String value, Prop p, Class type) {
Object v = value;
if (type.isArray()) {
StringTokenizer st = new StringTokenizer(value, ",");
Class ctype = type.getComponentType();
v = Array.newInstance(ctype, st.countTokens());
for (int i = 0; st.hasMoreTokens(); i++)
Array.set(v, i, parseValue(st.nextToken(), p, ctype));
} else if (type == boolean.class) {
v = Boolean.valueOf(value);
} else if (type == double.class) {
v = Double.valueOf(value);
} else if (type == int.class) {
v = Integer.valueOf(value);
} else if (p.field.isAnnotationPresent(TimeIntervalProp.class)) {
if (value.endsWith("s")) {
v = (long) (Double.parseDouble(value.substring(0, value.length() - 1)) * SEC);
} else if (value.endsWith("m")) {
v = (long) (Double.parseDouble(value.substring(0, value.length() - 1)) * MIN);
} else {
v = Long.valueOf(value);
}
}
return v;
}
/**
* Examines a property's type to see which method should be used to parse the property's value.
*
* @param desc The description of the property
* @param value The value of the XML attribute containing the prop value
* @return The value stored in the element
* @throws IOException If there is an error reading the document
*/
public Object getObjectValue(PropertyDescriptor desc, String value) throws IOException {
// Find out what kind of property it is
Class type = desc.getPropertyType();
// If it's an array, get the base type
if (type.isArray()) {
type = type.getComponentType();
}
// For native types, object wrappers for natives, and strings, use the
// basic parse routine
if (type.equals(Integer.TYPE)
|| type.equals(Long.TYPE)
|| type.equals(Short.TYPE)
|| type.equals(Byte.TYPE)
|| type.equals(Boolean.TYPE)
|| type.equals(Float.TYPE)
|| type.equals(Double.TYPE)
|| Integer.class.isAssignableFrom(type)
|| Long.class.isAssignableFrom(type)
|| Short.class.isAssignableFrom(type)
|| Byte.class.isAssignableFrom(type)
|| Boolean.class.isAssignableFrom(type)
|| Float.class.isAssignableFrom(type)
|| Double.class.isAssignableFrom(type)) {
return parseBasicType(type, value);
} else if (String.class.isAssignableFrom(type)) {
return value;
} else if (java.util.Date.class.isAssignableFrom(type)) {
// If it's a date, use the date parser
return parseDate(value, JOXDateHandler.determineDateFormat());
} else {
return null;
}
}
/** Write a {@link Writable}, {@link String}, primitive type, or an array of the preceding. */
public static void writeObject(
DataOutput out, Object instance, Class declaredClass, Configuration conf) throws IOException {
if (instance == null) { // null
instance = new NullInstance(declaredClass, conf);
declaredClass = Writable.class;
}
UTF8.writeString(out, declaredClass.getName()); // always write declared
if (declaredClass.isArray()) { // array
int length = Array.getLength(instance);
out.writeInt(length);
for (int i = 0; i < length; i++) {
writeObject(out, Array.get(instance, i), declaredClass.getComponentType(), conf);
}
} else if (declaredClass == String.class) { // String
UTF8.writeString(out, (String) instance);
} else if (declaredClass.isPrimitive()) { // primitive type
if (declaredClass == Boolean.TYPE) { // boolean
out.writeBoolean(((Boolean) instance).booleanValue());
} else if (declaredClass == Character.TYPE) { // char
out.writeChar(((Character) instance).charValue());
} else if (declaredClass == Byte.TYPE) { // byte
out.writeByte(((Byte) instance).byteValue());
} else if (declaredClass == Short.TYPE) { // short
out.writeShort(((Short) instance).shortValue());
} else if (declaredClass == Integer.TYPE) { // int
out.writeInt(((Integer) instance).intValue());
} else if (declaredClass == Long.TYPE) { // long
out.writeLong(((Long) instance).longValue());
} else if (declaredClass == Float.TYPE) { // float
out.writeFloat(((Float) instance).floatValue());
} else if (declaredClass == Double.TYPE) { // double
out.writeDouble(((Double) instance).doubleValue());
} else if (declaredClass == Void.TYPE) { // void
} else {
throw new IllegalArgumentException("Not a primitive: " + declaredClass);
}
} else if (declaredClass.isEnum()) { // enum
UTF8.writeString(out, ((Enum) instance).name());
} else if (Writable.class.isAssignableFrom(declaredClass)) { // Writable
UTF8.writeString(out, instance.getClass().getName());
((Writable) instance).write(out);
} else {
throw new IOException("Can't write: " + instance + " as " + declaredClass);
}
}
static String jni_signature(Class c) {
if (c == int.class) return "I";
if (c == long.class) return "J";
if (c == short.class) return "S";
if (c == byte.class) return "B";
if (c == boolean.class) return "Z";
if (c == double.class) return "D";
if (c == float.class) return "F";
if (c == char.class) return "C";
if (c == void.class) return "V";
if (c.isArray()) return "[" + jni_signature(c.getComponentType());
return "L" + name(c) + ";";
}
public static void toJSON(ConfigurationAdmin admin, Writer osw, String filter) throws Exception {
Configuration[] list = admin.listConfigurations(filter);
Encoder encoder = codec.enc().to(osw);
Protocol p = new Protocol();
p.version = 1;
p.date = new Date();
p.size = list.length;
encoder.put(p).append('\n');
if (list != null)
for (Configuration c : list) {
Dictionary<String, Object> d = c.getProperties();
Export export = new Export();
export.values = new HashMap<String, Object>();
export.factoryPid = c.getFactoryPid();
export.pid = c.getPid();
for (Enumeration<String> e = d.keys(); e.hasMoreElements(); ) {
String k = e.nextElement();
Object v = d.get(k);
if (!(v instanceof String)) {
if (export.types == null) export.types = new HashMap<String, Type>();
Type type = new Type();
Class<?> clazz = v.getClass();
if (v instanceof Collection) {
Collection<?> coll = (Collection<?>) v;
clazz = String.class;
if (coll.size() > 0) type.vectorOf = shortName(coll.iterator().next().getClass());
else type.vectorOf = shortName(String.class);
} else if (v.getClass().isArray()) {
type.arrayOf = shortName(clazz.getComponentType());
} else type.scalar = shortName(v.getClass());
export.types.put(k, type);
}
export.values.put(k, v);
}
encoder.mark().put(export);
// encoder.put(encoder.digest());
encoder.append('\n');
}
osw.flush();
}
/**
* Examines a property's type to see which method should be used to parse the property's value.
*
* @param desc The description of the property
* @param element The XML element containing the property value
* @return The value stored in the element
* @throws IOException If there is an error reading the document
*/
public Object getObjectValue(PropertyDescriptor desc, Element element) throws IOException {
// Find out what kind of property it is
Class type = desc.getPropertyType();
// If it's an array, get the base type
if (type.isArray()) {
type = type.getComponentType();
}
// For native types, object wrappers for natives, and strings, use the
// basic parse routine
if (type.equals(Integer.TYPE)
|| type.equals(Long.TYPE)
|| type.equals(Short.TYPE)
|| type.equals(Byte.TYPE)
|| type.equals(Boolean.TYPE)
|| type.equals(Float.TYPE)
|| type.equals(Double.TYPE)
|| Integer.class.isAssignableFrom(type)
|| Long.class.isAssignableFrom(type)
|| Short.class.isAssignableFrom(type)
|| Byte.class.isAssignableFrom(type)
|| Boolean.class.isAssignableFrom(type)
|| Float.class.isAssignableFrom(type)
|| Double.class.isAssignableFrom(type)
|| String.class.isAssignableFrom(type)) {
return readBasicType(type, element);
} else if (java.util.Date.class.isAssignableFrom(type)) {
// If it's a date, use the date parser
return readDate(element);
} else {
try {
// If it's an object, create a new instance of the object (it should
// be a bean, or there will be trouble)
Object newOb = type.newInstance();
// Copy the XML element into the bean
readObject(newOb, element);
return newOb;
} catch (InstantiationException exc) {
throw new IOException(
"Error creating object for " + desc.getName() + ": " + exc.toString());
} catch (IllegalAccessException exc) {
throw new IOException(
"Error creating object for " + desc.getName() + ": " + exc.toString());
}
}
}
private static Object unmarshallMsgData(int formatter, int byteArray, Class msgDataClass)
throws Exception {
Object object = null;
// Throw an exception if class does not match formatter
formatters.checkDataClass(formatter, msgDataClass);
if (msgDataClass.isArray()) {
// Create a top-level fixed-length array, based on the formatter.
object = formatters.createFixedArray(msgDataClass.getComponentType(), formatter);
} else {
// Create an object type that Java IPC can handle
object = coerceDataClass(msgDataClass).newInstance();
}
formatters.unmarshall(formatter, byteArray, object);
IPC_freeByteArray(byteArray);
if (formatters.IPCPrim.class.isAssignableFrom(object.getClass())) {
object = ((formatters.IPCPrim) object).coerce();
}
return object;
}
private static void writeValue(Object value, OutputStream os) throws IOException {
if (value == null) {
os.write(-1);
} else {
Class valueClass = value.getClass();
// write 0 for a single value, 1 for array, and 2 for Vector
if (valueClass.isArray()) {
os.write(1);
int length = Array.getLength(value);
PDataStream.writeInt(length, os);
Class componentType = valueClass.getComponentType();
if (componentType.isPrimitive()) {
// primitive
PDataStream.writeBoolean(true, os);
// 1: int;2: long; 3: byte; 4: boolean; 5: character; 6:
// short; 7: float; 8: double
writePrimitiveArray(componentType, value, length, os);
} else {
PDataStream.writeBoolean(false, os);
PDataStream.writeUTF(componentType.getName(), os);
Object[] oArr = (Object[]) value;
for (int i = 0; i < length; i++) {
writeValue(oArr[i], os);
}
}
} else if (valueClass.equals(Vector.class)) {
os.write(2);
int size = ((Vector) value).size();
PDataStream.writeInt(size, os);
for (int i = 0; i < size; i++) {
writeValue(((Vector) value).elementAt(i), os);
}
} else {
os.write(0);
writeRealObject(value, valueClass, os);
}
}
}
private static StringBuilder appendTypeString(StringBuilder sb, Class<?> type) {
while (type.isArray()) {
sb.append('[');
type = type.getComponentType();
}
if (type.isPrimitive()) {
char typeLetter;
if (type == Boolean.TYPE) {
typeLetter = 'Z';
} else if (type == Long.TYPE) {
typeLetter = 'J';
} else {
String typeName = type.getName();
typeLetter = Character.toUpperCase(typeName.charAt(0));
}
sb.append(typeLetter);
} else {
sb.append('L');
sb.append(type.getName().replace('.', '/'));
sb.append(';');
}
return sb;
}
/** Mimics SimpleXML's naming for classes without {@link Root#name()}. */
private static String getClassName(Class<?> type) {
if (type.isArray()) type = type.getComponentType();
final String name = type.getSimpleName();
if (type.isPrimitive()) return name;
else return Introspector.decapitalize(name);
}
/**
* Checks all of the classes in the serialization scope that implement TetradSerializable to make
* sure all of their fields are either themselves (a) primitive, (b) TetradSerializable, or (c)
* assignable from types designated as safely serializable by virtue of being included in the
* safelySerializableTypes array (see), or are arrays whose lowest order component types satisfy
* either (a), (b), or (c). Safely serializable classes in the Java API currently include
* collections classes, plus String and Class. Collections classes are included, since their types
* will be syntactically checkable in JDK 1.5. String and Class are members of a broader type of
* Class whose safely can by checked by making sure there is no way to pass into them via
* constructor or method argument any object that is not TetradSerializable or safely
* serializable. But it's easy enough now to just make a list.
*
* @see #safelySerializableTypes
*/
public void checkNestingOfFields() {
List classes = getAssignableClasses(new File(getSerializableScope()), TetradSerializable.class);
boolean foundUnsafeField = false;
for (Object aClass : classes) {
Class clazz = (Class) aClass;
if (TetradSerializableExcluded.class.isAssignableFrom(clazz)) {
continue;
}
Field[] fields = clazz.getDeclaredFields();
FIELDS:
for (Field field : fields) {
// System.out.println(field);
if (Modifier.isTransient(field.getModifiers())) {
continue;
}
if (Modifier.isStatic(field.getModifiers())) {
continue;
}
Class type = field.getType();
while (type.isArray()) {
type = type.getComponentType();
}
if (type.isPrimitive()) {
continue;
}
if (type.isEnum()) {
continue;
}
// // Printing out Collections fields temporarily.
// if (Collection.class.isAssignableFrom(type)) {
// System.out.println("COLLECTION FIELD: " + field);
// }
//
// if (Map.class.isAssignableFrom(type)) {
// System.out.println("MAP FIELD: " + field);
// }
if (TetradSerializable.class.isAssignableFrom(type)
&& !TetradSerializableExcluded.class.isAssignableFrom(clazz)) {
continue;
}
for (Class safelySerializableClass : safelySerializableTypes) {
if (safelySerializableClass.isAssignableFrom(type)) {
continue FIELDS;
}
}
// A reference in an inner class to the outer class.
if (field.getName().equals("this$0")) {
continue;
}
System.out.println("UNSAFE FIELD:" + field);
foundUnsafeField = true;
}
}
if (foundUnsafeField) {
throw new RuntimeException("Unsafe serializable fields found. Please " + "fix immediately.");
}
}
/** Read a {@link Writable}, {@link String}, primitive type, or an array of the preceding. */
@SuppressWarnings("unchecked")
public static Object readObject(DataInput in, ObjectWritable objectWritable, Configuration conf)
throws IOException {
String className = UTF8.readString(in);
Class<?> declaredClass = PRIMITIVE_NAMES.get(className);
if (declaredClass == null) {
declaredClass = loadClass(conf, className);
}
Object instance;
if (declaredClass.isPrimitive()) { // primitive types
if (declaredClass == Boolean.TYPE) { // boolean
instance = Boolean.valueOf(in.readBoolean());
} else if (declaredClass == Character.TYPE) { // char
instance = Character.valueOf(in.readChar());
} else if (declaredClass == Byte.TYPE) { // byte
instance = Byte.valueOf(in.readByte());
} else if (declaredClass == Short.TYPE) { // short
instance = Short.valueOf(in.readShort());
} else if (declaredClass == Integer.TYPE) { // int
instance = Integer.valueOf(in.readInt());
} else if (declaredClass == Long.TYPE) { // long
instance = Long.valueOf(in.readLong());
} else if (declaredClass == Float.TYPE) { // float
instance = Float.valueOf(in.readFloat());
} else if (declaredClass == Double.TYPE) { // double
instance = Double.valueOf(in.readDouble());
} else if (declaredClass == Void.TYPE) { // void
instance = null;
} else {
throw new IllegalArgumentException("Not a primitive: " + declaredClass);
}
} else if (declaredClass.isArray()) { // array
int length = in.readInt();
instance = Array.newInstance(declaredClass.getComponentType(), length);
for (int i = 0; i < length; i++) {
Array.set(instance, i, readObject(in, conf));
}
} else if (declaredClass == String.class) { // String
instance = UTF8.readString(in);
} else if (declaredClass.isEnum()) { // enum
instance = Enum.valueOf((Class<? extends Enum>) declaredClass, UTF8.readString(in));
} else { // Writable
Class instanceClass = null;
String str = UTF8.readString(in);
instanceClass = loadClass(conf, str);
Writable writable = WritableFactories.newInstance(instanceClass, conf);
writable.readFields(in);
instance = writable;
if (instanceClass == NullInstance.class) { // null
declaredClass = ((NullInstance) instance).declaredClass;
instance = null;
}
}
if (objectWritable != null) { // store values
objectWritable.declaredClass = declaredClass;
objectWritable.instance = instance;
}
return instance;
}
/** Type-munging for field setting and method invocation. Conforms to LC3 specification */
static Object coerceTypeImpl(Class<?> type, Object value) {
if (value != null && value.getClass() == type) {
return value;
}
switch (getJSTypeCode(value)) {
case JSTYPE_NULL:
// raise error if type.isPrimitive()
if (type.isPrimitive()) {
reportConversionError(value, type);
}
return null;
case JSTYPE_UNDEFINED:
if (type == ScriptRuntime.StringClass || type == ScriptRuntime.ObjectClass) {
return "undefined";
} else {
reportConversionError("undefined", type);
}
break;
case JSTYPE_BOOLEAN:
// Under LC3, only JS Booleans can be coerced into a Boolean value
if (type == Boolean.TYPE
|| type == ScriptRuntime.BooleanClass
|| type == ScriptRuntime.ObjectClass) {
return value;
} else if (type == ScriptRuntime.StringClass) {
return value.toString();
} else {
reportConversionError(value, type);
}
break;
case JSTYPE_NUMBER:
if (type == ScriptRuntime.StringClass) {
return ScriptRuntime.toString(value);
} else if (type == ScriptRuntime.ObjectClass) {
return coerceToNumber(Double.TYPE, value);
} else if ((type.isPrimitive() && type != Boolean.TYPE)
|| ScriptRuntime.NumberClass.isAssignableFrom(type)) {
return coerceToNumber(type, value);
} else {
reportConversionError(value, type);
}
break;
case JSTYPE_STRING:
if (type == ScriptRuntime.StringClass || type.isInstance(value)) {
return value;
} else if (type == Character.TYPE || type == ScriptRuntime.CharacterClass) {
// Special case for converting a single char string to a
// character
// Placed here because it applies *only* to JS strings,
// not other JS objects converted to strings
if (((String) value).length() == 1) {
return new Character(((String) value).charAt(0));
} else {
return coerceToNumber(type, value);
}
} else if ((type.isPrimitive() && type != Boolean.TYPE)
|| ScriptRuntime.NumberClass.isAssignableFrom(type)) {
return coerceToNumber(type, value);
} else {
reportConversionError(value, type);
}
break;
case JSTYPE_JAVA_CLASS:
if (value instanceof Wrapper) {
value = ((Wrapper) value).unwrap();
}
if (type == ScriptRuntime.ClassClass || type == ScriptRuntime.ObjectClass) {
return value;
} else if (type == ScriptRuntime.StringClass) {
return value.toString();
} else {
reportConversionError(value, type);
}
break;
case JSTYPE_JAVA_OBJECT:
case JSTYPE_JAVA_ARRAY:
if (value instanceof Wrapper) {
value = ((Wrapper) value).unwrap();
}
if (type.isPrimitive()) {
if (type == Boolean.TYPE) {
reportConversionError(value, type);
}
return coerceToNumber(type, value);
} else {
if (type == ScriptRuntime.StringClass) {
return value.toString();
} else {
if (type.isInstance(value)) {
return value;
} else {
reportConversionError(value, type);
}
}
}
break;
case JSTYPE_OBJECT:
if (type == ScriptRuntime.StringClass) {
return ScriptRuntime.toString(value);
} else if (type.isPrimitive()) {
if (type == Boolean.TYPE) {
reportConversionError(value, type);
}
return coerceToNumber(type, value);
} else if (type.isInstance(value)) {
return value;
} else if (type == ScriptRuntime.DateClass && value instanceof NativeDate) {
double time = ((NativeDate) value).getJSTimeValue();
// XXX: This will replace NaN by 0
return new Date((long) time);
} else if (type.isArray() && value instanceof NativeArray) {
// Make a new java array, and coerce the JS array components
// to the target (component) type.
NativeArray array = (NativeArray) value;
long length = array.getLength();
Class<?> arrayType = type.getComponentType();
Object Result = Array.newInstance(arrayType, (int) length);
for (int i = 0; i < length; ++i) {
try {
Array.set(Result, i, coerceType(arrayType, array.get(i, array)));
} catch (EvaluatorException ee) {
reportConversionError(value, type);
}
}
return Result;
} else if (value instanceof Wrapper) {
value = ((Wrapper) value).unwrap();
if (type.isInstance(value)) return value;
reportConversionError(value, type);
} else if (type.isInterface() && value instanceof Callable) {
// Try to use function as implementation of Java interface.
//
// XXX: Currently only instances of ScriptableObject are
// supported since the resulting interface proxies should
// be reused next time conversion is made and generic
// Callable has no storage for it. Weak references can
// address it but for now use this restriction.
if (value instanceof ScriptableObject) {
ScriptableObject so = (ScriptableObject) value;
Object key = Kit.makeHashKeyFromPair(COERCED_INTERFACE_KEY, type);
Object old = so.getAssociatedValue(key);
if (old != null) {
// Function was already wrapped
return old;
}
Context cx = Context.getContext();
Object glue = InterfaceAdapter.create(cx, type, (Callable) value);
// Store for later retrival
glue = so.associateValue(key, glue);
return glue;
}
reportConversionError(value, type);
} else {
reportConversionError(value, type);
}
break;
}
return value;
}
public static int dimensions(Class<?> c) {
if (c.getComponentType() != null) {
return 1 + dimensions(c.getComponentType());
}
return 0;
}