private int findfd(Object fdObj) throws Exception {
Class cl;
Field f;
Object val, implVal;
if ((fdObj instanceof java.net.Socket) || (fdObj instanceof java.net.ServerSocket)) {
cl = fdObj.getClass();
f = cl.getDeclaredField("impl");
f.setAccessible(true);
val = f.get(fdObj);
cl = f.getType();
f = cl.getDeclaredField("fd");
f.setAccessible(true);
implVal = f.get(val);
cl = f.getType();
f = cl.getDeclaredField("fd");
f.setAccessible(true);
return ((Integer) f.get(implVal)).intValue();
} else if (fdObj instanceof java.io.FileDescriptor) {
cl = fdObj.getClass();
f = cl.getDeclaredField("fd");
f.setAccessible(true);
return ((Integer) f.get(fdObj)).intValue();
} else {
throw new IllegalArgumentException("Illegal Object type.");
}
}
/**
* Delegates to {@link Field#get(Object)} hiding IllegalAccessException.
*
* @param f A field.
* @param obj An object.
* @return The value of the represented field in object.
* @throws IOException If failed.
*/
static Object get(Field f, Object obj) throws IOException {
try {
return f.get(obj);
} catch (IllegalAccessException e) {
throw new IOException("Failed to get field value: " + f, e);
}
}
/**
* Copy from the copy method in StructUtil. Did not want to drag that code in. maybe this actually
* should go to struct.
*
* @param from
* @param to
* @param excludes
* @return
* @throws Exception
*/
public static <T extends struct> T xcopy(struct from, T to, String... excludes) throws Exception {
Arrays.sort(excludes);
for (Field f : from.fields()) {
if (Arrays.binarySearch(excludes, f.getName()) >= 0) continue;
Object o = f.get(from);
if (o == null) continue;
Field tof = to.getField(f.getName());
if (tof != null)
try {
tof.set(to, Converter.cnv(tof.getGenericType(), o));
} catch (Exception e) {
System.out.println(
"Failed to convert "
+ f.getName()
+ " from "
+ from.getClass()
+ " to "
+ to.getClass()
+ " value "
+ o
+ " exception "
+ e);
}
}
return to;
}
// Use reflection to get version since early versions
// of ImageJ do not have the IJ.getVersion() method.
String version() {
String version = "";
try {
Class ijClass = ImageJ.class;
Field field = ijClass.getField("VERSION");
version = (String) field.get(ijClass);
} catch (Exception ex) {
}
return version;
}
/**
* `获取给定对象的属性的值` `@param fieldName 属性名` `@param obj 对象`
*
* @return
*/
public static Object getFieldValue(String fieldName, Object obj) {
try {
Class cls = obj.getClass();
Field field = cls.getDeclaredField(fieldName);
return field.get(obj);
} catch (Exception e) {
e.printStackTrace();
print("Field access error!");
throw new RuntimeException(e);
}
}
/**
* Set the current opcode. This sets four global fields: the currentOpcode, the
* currentOpcodeArgTable, the currentFormat and the currentOpcodeSymbolicNames.
*
* @param opcode The IA32 architecture opcode to make the current opcode
*/
static void setCurrentOpcode(String opcode) {
try {
currentOpcode = opcode;
currentOpcodeArgTable = (int[]) opcodeArgTables.get(opcode);
currentFormat = OperatorFormatTables.getFormat(opcode);
Field f = formats.getDeclaredField(currentFormat + "ParameterNames");
currentOpcodeSymbolicNames = (String[]) f.get(null);
} catch (Throwable e) {
throw new Error("Cannot handle Assembler opcode " + opcode, e);
}
}
public static Properties getParent(Properties p) {
try {
Field f = Properties.class.getDeclaredField("defaults");
f.setAccessible(true);
return (Properties) f.get(p);
} catch (Exception e) {
Field[] fields = Properties.class.getFields();
System.err.println(Arrays.toString(fields));
return null;
}
}
/** Constructor, initializing the default options. */
protected AProp() {
try {
for (final Field f : getClass().getFields()) {
final Object obj = f.get(null);
if (!(obj instanceof Object[])) continue;
final Object[] arr = (Object[]) obj;
props.put(arr[0].toString(), arr[1]);
}
} catch (final Exception ex) {
Util.notexpected(ex);
}
}
public IdentitySchema(Configuration configuration) {
this.configuration = configuration;
this.properties = configuration.getProperties();
this.dialect = Dialect.getDialect(properties);
try {
// get the mapping field via reflection :-(
Field mappingField = Configuration.class.getDeclaredField("mapping");
mappingField.setAccessible(true);
this.mapping = (Mapping) mappingField.get(configuration);
} catch (Exception e) {
throw new RuntimeException("couldn't get the hibernate mapping", e);
}
}
private static void netxsurgery() throws Exception {
/* Force off NetX codebase classloading. */
Class<?> nxc;
try {
nxc = Class.forName("net.sourceforge.jnlp.runtime.JNLPClassLoader");
} catch (ClassNotFoundException e1) {
try {
nxc = Class.forName("netx.jnlp.runtime.JNLPClassLoader");
} catch (ClassNotFoundException e2) {
throw (new Exception("No known NetX on classpath"));
}
}
ClassLoader cl = MainFrame.class.getClassLoader();
if (!nxc.isInstance(cl)) {
throw (new Exception("Not running from a NetX classloader"));
}
Field cblf, lf;
try {
cblf = nxc.getDeclaredField("codeBaseLoader");
lf = nxc.getDeclaredField("loaders");
} catch (NoSuchFieldException e) {
throw (new Exception("JNLPClassLoader does not conform to its known structure"));
}
cblf.setAccessible(true);
lf.setAccessible(true);
Set<Object> loaders = new HashSet<Object>();
Stack<Object> open = new Stack<Object>();
open.push(cl);
while (!open.empty()) {
Object cur = open.pop();
if (loaders.contains(cur)) continue;
loaders.add(cur);
Object curl;
try {
curl = lf.get(cur);
} catch (IllegalAccessException e) {
throw (new Exception("Reflection accessibility not available even though set"));
}
for (int i = 0; i < Array.getLength(curl); i++) {
Object other = Array.get(curl, i);
if (nxc.isInstance(other)) open.push(other);
}
}
for (Object cur : loaders) {
try {
cblf.set(cur, null);
} catch (IllegalAccessException e) {
throw (new Exception("Reflection accessibility not available even though set"));
}
}
}
private MutableTreeNode populateAttributes(CavityDBObject obj) {
DefaultMutableTreeNode tree = new DefaultMutableTreeNode("attrs");
Class cls = obj.getClass();
for (Field f : cls.getFields()) {
int mod = f.getModifiers();
if (Modifier.isPublic(mod) && !Modifier.isStatic(mod)) {
String fieldName = f.getName();
try {
Object value = f.get(obj);
tree.add(
new DefaultMutableTreeNode(String.format("%s=%s", fieldName, String.valueOf(value))));
} catch (IllegalAccessException e) {
// do nothing.
}
}
}
return tree;
}
private static void linkChildren(RArray parentRealView, ViewTrace parentTrace) {
Class viewClass = parentRealView.getClass();
Field[] fields = getAllFields(viewClass);
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (RArray.class.isAssignableFrom(fieldClass)) {
try {
f.setAccessible(true);
Object o = f.get(parentRealView);
if (o instanceof TracingView) {
((TracingView) o).getTrace().parentView = parentTrace;
}
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
}
}
private static void extractViewPattern(int depth, ViewTrace trace, StringBuilder p) {
if (!processedViewsForPatterns.add(trace)) {
p.append("(ALIASED) ");
}
p.append(trace.realView.getClass() + " size = " + trace.realView.size() + "\n");
indent(depth, p);
p.append(" use:");
if (trace.materializeCount == 0 && trace.sumCount == 0 && trace.getCount == 0) {
p.append(" UNUSED");
} else {
if (trace.getCount > 0) {
p.append(" get");
}
if (trace.materializeCount > 0) {
p.append(" materialize");
}
if (trace.sumCount > 0) {
p.append(" sum");
}
}
p.append("\n");
if (false) {
p.append(" allocationSite =");
Site.printSite(trace.allocationSite, p);
p.append("\n");
indent(depth, p);
}
RArray view = trace.realView;
Class viewClass = view.getClass();
Field[] fields = getAllFields(viewClass);
boolean printedField = false;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (RArray.class.isAssignableFrom(fieldClass)) {
continue; // these later
}
indent(depth, p);
p.append(" " + f.getName() + " ");
try {
f.setAccessible(true);
Object o = f.get(view);
p.append(o == null ? "null (" + fieldClass + ")" : o.getClass());
p.append("\n");
printedField = true;
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
boolean printNewline = printedField;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (!RArray.class.isAssignableFrom(fieldClass)) {
continue;
}
if (printNewline) {
p.append("\n");
printNewline = false;
}
indent(depth, p);
p.append(" " + f.getName() + " ");
try {
f.setAccessible(true);
Object o = f.get(view);
if (o instanceof TracingView) {
p.append("VIEW ");
TracingView child = (TracingView) o;
extractViewPattern(depth + 2, child.getTrace(), p);
} else {
p.append("ARRAY " + o.getClass() + " size = " + ((RArray) o).size());
if (o instanceof View) {
ps.println("MISSED VIEW " + o);
}
}
p.append("\n");
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
}
/**
* Reads the configuration file and initializes the project properties. The file is located in the
* project home directory.
*
* @param prop property file extension
*/
protected synchronized void read(final String prop) {
file = new IOFile(HOME + IO.BASEXSUFFIX + prop);
final StringList read = new StringList();
final TokenBuilder err = new TokenBuilder();
if (!file.exists()) {
err.addExt("Saving properties in \"%\"..." + NL, file);
} else {
BufferedReader br = null;
try {
br = new BufferedReader(new FileReader(file.file()));
for (String line; (line = br.readLine()) != null; ) {
line = line.trim();
if (line.isEmpty() || line.charAt(0) == '#') continue;
final int d = line.indexOf('=');
if (d < 0) {
err.addExt("%: \"%\" ignored. " + NL, file, line);
continue;
}
final String val = line.substring(d + 1).trim();
String key = line.substring(0, d).trim();
// extract numeric value in key
int num = 0;
final int ss = key.length();
for (int s = 0; s < ss; ++s) {
if (Character.isDigit(key.charAt(s))) {
num = Integer.parseInt(key.substring(s));
key = key.substring(0, s);
break;
}
}
read.add(key);
final Object entry = props.get(key);
if (entry == null) {
err.addExt("%: \"%\" not found. " + NL, file, key);
} else if (entry instanceof String) {
props.put(key, val);
} else if (entry instanceof Integer) {
props.put(key, Integer.parseInt(val));
} else if (entry instanceof Boolean) {
props.put(key, Boolean.parseBoolean(val));
} else if (entry instanceof String[]) {
if (num == 0) {
props.put(key, new String[Integer.parseInt(val)]);
} else {
((String[]) entry)[num - 1] = val;
}
} else if (entry instanceof int[]) {
((int[]) entry)[num] = Integer.parseInt(val);
}
}
} catch (final Exception ex) {
err.addExt("% could not be parsed." + NL, file);
Util.debug(ex);
} finally {
if (br != null)
try {
br.close();
} catch (final IOException ex) {
}
}
}
// check if all mandatory files have been read
try {
if (err.isEmpty()) {
boolean ok = true;
for (final Field f : getClass().getFields()) {
final Object obj = f.get(null);
if (!(obj instanceof Object[])) continue;
final String key = ((Object[]) obj)[0].toString();
ok &= read.contains(key);
}
if (!ok) err.addExt("Saving properties in \"%\"..." + NL, file);
}
} catch (final IllegalAccessException ex) {
Util.notexpected(ex);
}
if (!err.isEmpty()) {
Util.err(err.toString());
write();
}
}
public TypeUniverse() {
Providers providers =
Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getProviders();
metaAccess = providers.getMetaAccess();
constantReflection = providers.getConstantReflection();
snippetReflection = Graal.getRequiredCapability(SnippetReflectionProvider.class);
Unsafe theUnsafe = null;
try {
theUnsafe = Unsafe.getUnsafe();
} catch (Exception e) {
try {
Field theUnsafeField = Unsafe.class.getDeclaredField("theUnsafe");
theUnsafeField.setAccessible(true);
theUnsafe = (Unsafe) theUnsafeField.get(null);
} catch (Exception e1) {
throw (InternalError) new InternalError("unable to initialize unsafe").initCause(e1);
}
}
unsafe = theUnsafe;
Class<?>[] initialClasses = {
void.class,
boolean.class,
byte.class,
short.class,
char.class,
int.class,
float.class,
long.class,
double.class,
Object.class,
Class.class,
ClassLoader.class,
String.class,
Serializable.class,
Cloneable.class,
Test.class,
TestMetaAccessProvider.class,
List.class,
Collection.class,
Map.class,
Queue.class,
HashMap.class,
LinkedHashMap.class,
IdentityHashMap.class,
AbstractCollection.class,
AbstractList.class,
ArrayList.class
};
for (Class<?> c : initialClasses) {
addClass(c);
}
for (Field f : Constant.class.getDeclaredFields()) {
int mods = f.getModifiers();
if (f.getType() == Constant.class
&& Modifier.isPublic(mods)
&& Modifier.isStatic(mods)
&& Modifier.isFinal(mods)) {
try {
Constant c = (Constant) f.get(null);
if (c != null) {
constants.add(c);
}
} catch (Exception e) {
}
}
}
for (Class<?> c : classes) {
if (c != void.class && !c.isArray()) {
constants.add(snippetReflection.forObject(Array.newInstance(c, 42)));
}
}
constants.add(snippetReflection.forObject(new ArrayList<>()));
constants.add(snippetReflection.forObject(new IdentityHashMap<>()));
constants.add(snippetReflection.forObject(new LinkedHashMap<>()));
constants.add(snippetReflection.forObject(new TreeMap<>()));
constants.add(snippetReflection.forObject(new ArrayDeque<>()));
constants.add(snippetReflection.forObject(new LinkedList<>()));
constants.add(snippetReflection.forObject("a string"));
constants.add(snippetReflection.forObject(42));
constants.add(snippetReflection.forObject(String.class));
constants.add(snippetReflection.forObject(String[].class));
}
private void dump() throws IOException {
lookupMethod = null;
try {
lookupMethod = catalog.getClass().getMethod("lookup", new Class[] {java.lang.String.class});
} catch (NoSuchMethodException e) {
} catch (SecurityException e) {
}
Method pluralMethod = null;
try {
pluralMethod = catalog.getClass().getMethod("get_msgid_plural_table", new Class[0]);
} catch (NoSuchMethodException e) {
} catch (SecurityException e) {
}
Field pluralField = null;
try {
pluralField = catalog.getClass().getField("plural");
} catch (NoSuchFieldException e) {
} catch (SecurityException e) {
}
// Search for the header entry.
{
Object header_entry = null;
Enumeration keys = catalog.getKeys();
while (keys.hasMoreElements())
if ("".equals(keys.nextElement())) {
header_entry = lookup("");
break;
}
// If there is no header entry, fake one.
// FIXME: This is not needed; right after po_lex_charset_init set
// the PO charset to UTF-8.
if (header_entry == null) header_entry = "Content-Type: text/plain; charset=UTF-8\n";
dumpMessage("", null, header_entry);
}
// Now the other messages.
{
Enumeration keys = catalog.getKeys();
Object plural = null;
if (pluralMethod != null) {
// msgfmt versions > 0.13.1 create a static get_msgid_plural_table()
// method.
try {
plural = pluralMethod.invoke(catalog, new Object[0]);
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.getTargetException().printStackTrace();
}
} else if (pluralField != null) {
// msgfmt versions <= 0.13.1 create a static plural field.
try {
plural = pluralField.get(catalog);
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
if (plural instanceof String[]) {
// A GNU gettext created class with plural handling, Java2 format.
int i = 0;
while (keys.hasMoreElements()) {
String key = (String) keys.nextElement();
Object value = lookup(key);
String key_plural = (value instanceof String[] ? ((String[]) plural)[i++] : null);
if (!"".equals(key)) dumpMessage(key, key_plural, value);
}
if (i != ((String[]) plural).length)
throw new RuntimeException("wrong plural field length");
} else if (plural instanceof Hashtable) {
// A GNU gettext created class with plural handling, Java format.
while (keys.hasMoreElements()) {
String key = (String) keys.nextElement();
if (!"".equals(key)) {
Object value = lookup(key);
String key_plural =
(value instanceof String[] ? (String) ((Hashtable) plural).get(key) : null);
dumpMessage(key, key_plural, value);
}
}
} else if (plural == null) {
// No plural handling.
while (keys.hasMoreElements()) {
String key = (String) keys.nextElement();
if (!"".equals(key)) dumpMessage(key, null, lookup(key));
}
} else throw new RuntimeException("wrong plural field value");
}
}
private static void dumpView(int depth, ViewTrace trace) {
printedIndividualViews.add(trace);
ps.println(trace.realView + " size = " + trace.realView.size());
if (TRACE_ALLOCATION_SITE) {
indent(depth);
ps.print(" allocationSite =");
Site.printSite(trace.allocationSite);
ps.println();
}
int unused = trace.unusedElements();
int redundant = trace.redundantGets();
boolean singleUse;
Site[] useSites;
if (TRACE_USE_SITES) {
useSites = trace.useSites.toArray(new Site[trace.useSites.size()]);
singleUse = (useSites.length == 1);
} else if (TRACE_SINGLE_USE_SITE) {
useSites = null;
singleUse = !trace.multipleUseSites;
} else {
useSites = null;
singleUse = false;
}
if (singleUse) {
indent(depth);
ps.print(" singleUseSite = US");
Site.printSite(useSites != null ? useSites[0] : trace.singleUseSite);
if (trace.getCount > 0) {
ps.println(" (get)");
} else if (trace.sumCount > 0) {
ps.println(" (sum)");
} else {
ps.println(" (materialize)");
}
} else if (trace.getCount > 0) {
if (TRACE_FIRST_GET_SITE) {
indent(depth);
ps.print(" firstGetSite =");
Site.printSite(trace.firstGetSite);
ps.println();
}
if (trace.materializeCount == 0 && trace.sumCount == 0) {
if (unused > 0) {
indent(depth);
ps.println(" unusedElements = " + unused);
}
if (redundant > 0) {
indent(depth);
ps.println(" redundantGets = " + redundant + " (no materialize, sum)");
}
}
} else {
if (trace.materializeCount == 0 && trace.sumCount == 0) {
indent(depth);
ps.println(" UNUSED");
} else {
indent(depth);
ps.println(
" materializeCount = "
+ trace.materializeCount
+ " sumCount = "
+ trace.sumCount
+ " getCount = "
+ trace.getCount);
}
}
if (TRACE_FIRST_MATERIALIZE_SITE && trace.materializeCount > 0 && !singleUse) {
indent(depth);
ps.print(" firstMaterializeSite =");
Site.printSite(trace.firstMaterializeSite);
ps.println();
}
if (TRACE_FIRST_SUM_SITE && trace.sumCount > 0 && !singleUse) {
indent(depth);
ps.print(" firstSumSite =");
Site.printSite(trace.firstSumSite);
ps.println();
}
if (TRACE_USE_SITES) {
if (useSites.length != 1) {
indent(depth);
ps.println(" useSites (" + useSites.length + "):");
for (Site s : useSites) {
indent(depth);
ps.print(" US");
Site.printSite(s);
ps.println();
}
}
}
ps.println();
RArray view = trace.realView;
Class viewClass = view.getClass();
Field[] fields = getAllFields(viewClass);
boolean printedField = false;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (RArray.class.isAssignableFrom(fieldClass)) {
continue; // these later
}
indent(depth);
ps.print(" " + f.getName() + " ");
try {
f.setAccessible(true);
ps.println(f.get(view));
printedField = true;
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
boolean printNewline = printedField;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (!RArray.class.isAssignableFrom(fieldClass)) {
continue;
}
if (printNewline) {
ps.println();
printNewline = false;
}
indent(depth);
ps.print(" " + f.getName() + " ");
try {
f.setAccessible(true);
Object o = f.get(view);
if (o instanceof TracingView) {
ps.print("VIEW ");
TracingView child = (TracingView) o;
dumpView(depth + 2, child.getTrace());
} else {
ps.print("ARRAY " + o + " size = " + ((RArray) o).size());
if (o instanceof View) {
ps.println("MISSED VIEW " + o);
}
}
ps.println();
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
}
public static Object getAdapterSelf(Class<?> adapterClass, Object adapter)
throws NoSuchFieldException, IllegalAccessException {
Field self = adapterClass.getDeclaredField("self");
return self.get(adapter);
}
/** Writes the properties to disk. */
public final synchronized void write() {
final StringBuilder user = new StringBuilder();
BufferedReader br = null;
try {
// caches options specified by the user
if (file.exists()) {
br = new BufferedReader(new FileReader(file.file()));
for (String line; (line = br.readLine()) != null; ) {
if (line.equals(PROPUSER)) break;
}
for (String line; (line = br.readLine()) != null; ) {
user.append(line).append(NL);
}
}
} catch (final Exception ex) {
Util.debug(ex);
} finally {
if (br != null)
try {
br.close();
} catch (final IOException e) {
}
}
BufferedWriter bw = null;
try {
bw = new BufferedWriter(new FileWriter(file.file()));
bw.write(PROPHEADER + NL);
for (final Field f : getClass().getFields()) {
final Object obj = f.get(null);
if (!(obj instanceof Object[])) continue;
final String key = ((Object[]) obj)[0].toString();
final Object val = props.get(key);
if (val instanceof String[]) {
final String[] str = (String[]) val;
bw.write(key + " = " + str.length + NL);
final int is = str.length;
for (int i = 0; i < is; ++i) {
if (str[i] != null) bw.write(key + (i + 1) + " = " + str[i] + NL);
}
} else if (val instanceof int[]) {
final int[] num = (int[]) val;
final int ns = num.length;
for (int i = 0; i < ns; ++i) {
bw.write(key + i + " = " + num[i] + NL);
}
} else {
bw.write(key + " = " + val + NL);
}
}
bw.write(NL + PROPUSER + NL);
bw.write(user.toString());
} catch (final Exception ex) {
Util.errln("% could not be written.", file);
Util.debug(ex);
} finally {
if (bw != null)
try {
bw.close();
} catch (final IOException e) {
}
}
}