import java.util.*; import java.util.zip.*; import java.util.List; import java.util.regex.*; import java.util.concurrent.*; import java.util.concurrent.atomic.*; import java.util.concurrent.locks.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.text.*; import javax.swing.table.*; import java.io.*; import java.net.*; import java.lang.reflect.*; import java.lang.ref.*; import java.lang.management.*; import java.security.*; import java.security.spec.*; import java.awt.*; import java.awt.event.*; import java.awt.image.*; import javax.imageio.*; import java.math.*; import oshi.SystemInfo; import oshi.hardware.*; class main { public static void main(final String[] args) throws Exception { // Set up constants Map vmMap = new HashMap(); vmMap.put("00:50:56", "VMware ESX 3"); vmMap.put("00:0C:29", "VMware ESX 3"); vmMap.put("00:05:69", "VMware ESX 3"); vmMap.put("00:03:FF", "Microsoft Hyper-V"); vmMap.put("00:1C:42", "Parallels Desktop"); vmMap.put("00:0F:4B", "Virtual Iron 4"); vmMap.put("00:16:3E", "Xen or Oracle VM"); vmMap.put("08:00:27", "Sun xVM VirtualBox"); String[] vmArray = { "Linux KVM", "Linux lguest", "OpenVZ", "Qemu", "Microsoft Virtual PC", "VMWare", "linux-vserver", "Xen", "FreeBSD Jail", "OpenVZ Host", "VirtualBox", "Parallels", "Linux Containers", "LXC" }; HardwareAbstractionLayer hw = oshi_hardware(); // Try well known MAC addresses NetworkIF[] nifs = hw.getNetworkIFs(); boolean isvm = false; for (NetworkIF nif : nifs) { String mac = nif.getMacaddr().substring(0, 8).toUpperCase(); if (vmMap.containsKey(mac)) { print("On a VM: " + vmMap.get(mac)); isvm = true; break; } } // Try well known models if (!isvm) { String model = hw.getComputerSystem().getModel(); print(model); for (String vm : vmArray) { if (model.contains(vm)) { print("On a VM: " + vm); isvm = true; break; } } } if (!isvm) { print("Couldn't detect VM"); } } // oshi // jna // slf4j // threetenbp static Cache < HardwareAbstractionLayer > oshi_hardware_cache = new Cache("oshi_hardware_load"); static HardwareAbstractionLayer oshi_hardware() { return oshi_hardware_cache.get(); } static HardwareAbstractionLayer oshi_hardware_load() { return new SystemInfo().getHardware(); } static volatile StringBuffer local_log = new StringBuffer(); // not redirected static volatile Appendable print_log = local_log; // might be redirected, e.g. to main bot // in bytes - will cut to half that static volatile int print_log_max = 1024*1024; static volatile int local_log_max = 100*1024; //static int print_maxLineLength = 0; // 0 = unset static boolean print_silent; // total mute if set static Object print_byThread_lock = new Object(); static volatile ThreadLocal print_byThread; // special handling by thread - prefers F1 static volatile Object print_allThreads; static void print() { print(""); } static A print(String s, A o) { print((endsWithLetterOrDigit(s) ? s + ": " : s) + o); return o; } // slightly overblown signature to return original object... static A print(A o) { ping(); if (print_silent) return o; String s = String.valueOf(o) + "\n"; print_noNewLine(s); return o; } static void print_noNewLine(String s) { Object f = print_byThread == null ? null : print_byThread.get(); if (f == null) f = print_allThreads; if (f != null) // We do need the general callF machinery here as print_byThread is sometimes shared between modules if (isFalse( callF(f, s))) return; print_raw(s); } static void print_raw(String s) { s = fixNewLines(s); // TODO if (print_maxLineLength != 0) StringBuffer loc = local_log; Appendable buf = print_log; int loc_max = print_log_max; if (buf != loc && buf != null) { print_append(buf, s, print_log_max); loc_max = local_log_max; } if (loc != null) print_append(loc, s, loc_max); System.out.print(s); } static boolean endsWithLetterOrDigit(String s) { return s != null && s.length() > 0 && Character.isLetterOrDigit(s.charAt(s.length()-1)); } //sbool ping_actions_shareable = true; static volatile boolean ping_pauseAll; static int ping_sleep = 100; // poll pauseAll flag every 100 static volatile boolean ping_anyActions; static Map ping_actions = newWeakHashMap(); // always returns true static boolean ping() { if (ping_pauseAll || ping_anyActions ) ping_impl(); //ifndef LeanMode ping_impl(); endifndef return true; } // returns true when it slept static boolean ping_impl() { try { if (ping_pauseAll && !isAWTThread()) { do Thread.sleep(ping_sleep); while (ping_pauseAll); return true; } if (ping_anyActions) { // don't allow sharing ping_actions Object action = null; synchronized(ping_actions) { if (!ping_actions.isEmpty()) { action = ping_actions.get(currentThread()); if (action instanceof Runnable) ping_actions.remove(currentThread()); if (ping_actions.isEmpty()) ping_anyActions = false; } } if (action instanceof Runnable) ((Runnable) action).run(); else if (eq(action, "cancelled")) throw fail("Thread cancelled."); } return false; } catch (Exception __e) { throw rethrow(__e); } } static boolean isFalse(Object o) { return eq(false, o); } static Map> callF_cache = newDangerousWeakHashMap(); static void callF(VF1 f, A a) { if (f != null) f.get(a); } static Object callF(Object f, Object... args) { try { if (f instanceof String) return callMC((String) f, args); if (f instanceof Runnable) { ((Runnable) f).run(); return null; } if (f == null) return null; Class c = f.getClass(); ArrayList methods; synchronized(callF_cache) { methods = callF_cache.get(c); if (methods == null) methods = callF_makeCache(c); } int n = l(methods); if (n == 0) { throw fail("No get method in " + getClassName(c)); } if (n == 1) return invokeMethod(methods.get(0), f, args); for (int i = 0; i < n; i++) { Method m = methods.get(i); if (call_checkArgs(m, args, false)) return invokeMethod(m, f, args); } throw fail("No matching get method in " + getClassName(c)); } catch (Exception __e) { throw rethrow(__e); } } // used internally static ArrayList callF_makeCache(Class c) { ArrayList l = new ArrayList(); Class _c = c; do { for (Method m : _c.getDeclaredMethods()) if (m.getName().equals("get")) { m.setAccessible(true); l.add(m); } if (!l.isEmpty()) break; _c = _c.getSuperclass(); } while (_c != null); callF_cache.put(c, l); return l; } static String fixNewLines(String s) { int i = indexOf(s, '\r'); if (i < 0) return s; int l = s.length(); StringBuilder out = new StringBuilder(l); out.append(s, 0, i); for (; i < l; i++) { char c = s.charAt(i); if (c != '\r') out.append(c); else { out.append('\n'); if (i+1 < l && s.charAt(i+1) == '\n') ++i; } } return out.toString(); } static void print_append(Appendable _buf, String s, int max) { try { synchronized(_buf) { _buf.append(s); if (!(_buf instanceof StringBuilder)) return; StringBuilder buf = (StringBuilder) ( _buf); max /= 2; if (buf.length() > max) try { int newLength = max/2; int ofs = buf.length()-newLength; String newString = buf.substring(ofs); buf.setLength(0); buf.append("[...] ").append(newString); } catch (Exception e) { buf.setLength(0); } } } catch (Exception __e) { throw rethrow(__e); } } static Map newWeakHashMap() { return _registerWeakMap(synchroMap(new WeakHashMap())); } // TODO: test if android complains about this static boolean isAWTThread() { if (isAndroid()) return false; if (isHeadless()) return false; return isAWTThread_awt(); } static boolean isAWTThread_awt() { return SwingUtilities.isEventDispatchThread(); } static Thread currentThread() { return Thread.currentThread(); } static boolean eq(Object a, Object b) { return a == null ? b == null : a == b || a.equals(b); } static RuntimeException fail() { throw new RuntimeException("fail"); } static RuntimeException fail(Throwable e) { throw asRuntimeException(e); } static RuntimeException fail(Object msg) { throw new RuntimeException(String.valueOf(msg)); } static RuntimeException fail(String msg) { throw new RuntimeException(msg == null ? "" : msg); } static RuntimeException fail(String msg, Throwable innerException) { throw new RuntimeException(msg, innerException); } static RuntimeException rethrow(Throwable t) { if (t instanceof Error) _handleError((Error) t); throw t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t); } static Map newDangerousWeakHashMap() { return _registerDangerousWeakMap(synchroMap(new WeakHashMap())); } // initFunction: voidfunc(Map) - is called initially, and after clearing the map static Map newDangerousWeakHashMap(Object initFunction) { return _registerDangerousWeakMap(synchroMap(new WeakHashMap()), initFunction); } static HashMap> callMC_cache = new HashMap(); static String callMC_key; static Method callMC_value; // varargs assignment fixer for a single string array argument static Object callMC(String method, String[] arg) { return callMC(method, new Object[] {arg}); } static Object callMC(String method, Object... args) { try { Method me; if (callMC_cache == null) callMC_cache = new HashMap(); // initializer time workaround synchronized(callMC_cache) { me = method == callMC_key ? callMC_value : null; } if (me != null) try { return invokeMethod(me, null, args); } catch (IllegalArgumentException e) { throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e); } List m; synchronized(callMC_cache) { m = callMC_cache.get(method); } if (m == null) { if (callMC_cache.isEmpty()) { callMC_makeCache(); m = callMC_cache.get(method); } if (m == null) throw fail("Method named " + method + " not found in main"); } int n = m.size(); if (n == 1) { me = m.get(0); synchronized(callMC_cache) { callMC_key = method; callMC_value = me; } try { return invokeMethod(me, null, args); } catch (IllegalArgumentException e) { throw new RuntimeException("Can't call " + me + " with arguments " + classNames(args), e); } } for (int i = 0; i < n; i++) { me = m.get(i); if (call_checkArgs(me, args, false)) return invokeMethod(me, null, args); } throw fail("No method called " + method + " with matching arguments found in main"); } catch (Exception __e) { throw rethrow(__e); } } static void callMC_makeCache() { synchronized(callMC_cache) { callMC_cache.clear(); Class _c = (Class) mc(), c = _c; while (c != null) { for (Method m : c.getDeclaredMethods()) if ((m.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0) { m.setAccessible(true); multiMapPut(callMC_cache, m.getName(), m); } c = c.getSuperclass(); } } } static int l(Object[] a) { return a == null ? 0 : a.length; } static int l(boolean[] a) { return a == null ? 0 : a.length; } static int l(byte[] a) { return a == null ? 0 : a.length; } static int l(short[] a) { return a == null ? 0 : a.length; } static int l(long[] a) { return a == null ? 0 : a.length; } static int l(int[] a) { return a == null ? 0 : a.length; } static int l(float[] a) { return a == null ? 0 : a.length; } static int l(double[] a) { return a == null ? 0 : a.length; } static int l(char[] a) { return a == null ? 0 : a.length; } static int l(Collection c) { return c == null ? 0 : c.size(); } static int l(Map m) { return m == null ? 0 : m.size(); } static int l(CharSequence s) { return s == null ? 0 : s.length(); } static long l(File f) { return f == null ? 0 : f.length(); } static int l(Object o) { return o == null ? 0 : o instanceof String ? l((String) o) : o instanceof Map ? l((Map) o) : o instanceof Collection ? l((Collection) o) : o instanceof Object[] ? l((Object[]) o) : o instanceof boolean[] ? l((boolean[]) o) : o instanceof byte[] ? l((byte[]) o) : o instanceof char[] ? l((char[]) o) : o instanceof short[] ? l((short[]) o) : o instanceof int[] ? l((int[]) o) : o instanceof float[] ? l((float[]) o) : o instanceof double[] ? l((double[]) o) : o instanceof long[] ? l((long[]) o) : (Integer) call(o, "size"); } static String getClassName(Object o) { return o == null ? "null" : o instanceof Class ? ((Class) o).getName() : o.getClass().getName(); } static Object invokeMethod(Method m, Object o, Object... args) { try { try { return m.invoke(o, args); } catch (InvocationTargetException e) { throw rethrow(getExceptionCause(e)); } catch (IllegalArgumentException e) { throw new IllegalArgumentException(e.getMessage() + " - was calling: " + m + ", args: " + joinWithSpace(classNames(args))); } } catch (Exception __e) { throw rethrow(__e); } } static boolean call_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } static int indexOf(List l, A a, int startIndex) { if (l == null) return -1; for (int i = startIndex; i < l(l); i++) if (eq(l.get(i), a)) return i; return -1; } static int indexOf(List l, int startIndex, A a) { return indexOf(l, a, startIndex); } static int indexOf(List l, A a) { if (l == null) return -1; return l.indexOf(a); } static int indexOf(String a, String b) { return a == null || b == null ? -1 : a.indexOf(b); } static int indexOf(String a, String b, int i) { return a == null || b == null ? -1 : a.indexOf(b, i); } static int indexOf(String a, char b) { return a == null ? -1 : a.indexOf(b); } static int indexOf(String a, int i, char b) { return indexOf(a, b, i); } static int indexOf(String a, char b, int i) { return a == null ? -1 : a.indexOf(b, i); } static int indexOf(String a, int i, String b) { return a == null || b == null ? -1 : a.indexOf(b, i); } static int indexOf(A[] x, A a) { if (x == null) return -1; for (int i = 0; i < l(x); i++) if (eq(x[i], a)) return i; return -1; } static List _registerWeakMap_preList; static A _registerWeakMap(A map) { if (javax() == null) { // We're in class init if (_registerWeakMap_preList == null) _registerWeakMap_preList = synchroList(); _registerWeakMap_preList.add(map); return map; } try { call(javax(), "_registerWeakMap", map); } catch (Throwable e) { printException(e); print("Upgrade JavaX!!"); } return map; } static void _onLoad_registerWeakMap() { assertNotNull(javax()); if (_registerWeakMap_preList == null) return; for (Object o : _registerWeakMap_preList) _registerWeakMap(o); _registerWeakMap_preList = null; } static Map synchroMap() { return synchroHashMap(); } static Map synchroMap(Map map) { return Collections.synchronizedMap(map); } static int isAndroid_flag; static boolean isAndroid() { if (isAndroid_flag == 0) isAndroid_flag = System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0 ? 1 : -1; return isAndroid_flag > 0; } static Boolean isHeadless_cache; static boolean isHeadless() { if (isHeadless_cache != null) return isHeadless_cache; if (isAndroid()) return isHeadless_cache = true; if (GraphicsEnvironment.isHeadless()) return isHeadless_cache = true; // Also check if AWT actually works. // If DISPLAY variable is set but no X server up, this will notice. try { SwingUtilities.isEventDispatchThread(); return isHeadless_cache = false; } catch (Throwable e) { return isHeadless_cache = true; } } static String str(Object o) { return o == null ? "null" : o.toString(); } static String str(char[] c) { return new String(c); } static RuntimeException asRuntimeException(Throwable t) { if (t instanceof Error) _handleError((Error) t); return t instanceof RuntimeException ? (RuntimeException) t : new RuntimeException(t); } static void _handleError(Error e) { call(javax(), "_handleError", e); } static List _registerDangerousWeakMap_preList; static A _registerDangerousWeakMap(A map) { return _registerDangerousWeakMap(map, null); } static A _registerDangerousWeakMap(A map, Object init) { callF(init, map); if (init instanceof String) { final String f = (String) ( init); init = new VF1() { public void get(Map map) { try { callMC(f, map) ; } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "callMC(f, map)"; }}; } if (javax() == null) { // We're in class init if (_registerDangerousWeakMap_preList == null) _registerDangerousWeakMap_preList = synchroList(); _registerDangerousWeakMap_preList.add(pair(map, init)); return map; } call(javax(), "_registerDangerousWeakMap", map, init); return map; } static void _onLoad_registerDangerousWeakMap() { assertNotNull(javax()); if (_registerDangerousWeakMap_preList == null) return; for (Pair p : _registerDangerousWeakMap_preList) _registerDangerousWeakMap(p.a, p.b); _registerDangerousWeakMap_preList = null; } static List classNames(Collection l) { return getClassNames(l); } static List classNames(Object[] l) { return getClassNames(Arrays.asList(l)); } static Class mc() { return main.class; } static void multiMapPut(Map> map, A a, B b) { List l = map.get(a); if (l == null) map.put(a, l = new ArrayList()); l.add(b); } static A call(Object o) { return (A) callF(o); } // varargs assignment fixer for a single string array argument static A call(Object o, String method, String[] arg) { return call(o, method, new Object[] {arg}); } static A call(Object o, String method, Object... args) { return (A) call_cached(o, method, args); } static Throwable getExceptionCause(Throwable e) { Throwable c = e.getCause(); return c != null ? c : e; } static String joinWithSpace(Collection c) { return join(" ", c); } static String joinWithSpace(String... c) { return join(" ", c); } static boolean isInstanceX(Class type, Object arg) { if (type == boolean.class) return arg instanceof Boolean; if (type == int.class) return arg instanceof Integer; if (type == long.class) return arg instanceof Long; if (type == float.class) return arg instanceof Float; if (type == short.class) return arg instanceof Short; if (type == char.class) return arg instanceof Character; if (type == byte.class) return arg instanceof Byte; if (type == double.class) return arg instanceof Double; return type.isInstance(arg); } static Class javax() { return getJavaX(); } static List synchroList() { return Collections.synchronizedList(new ArrayList()); } static List synchroList(List l) { return Collections.synchronizedList(l); } static void printException(Throwable e) { printStackTrace(e); } static A assertNotNull(A a) { assertTrue(a != null); return a; } static A assertNotNull(String msg, A a) { assertTrue(msg, a != null); return a; } static Map synchroHashMap() { return Collections.synchronizedMap(new HashMap()); } static Pair pair(A a, B b) { return new Pair(a, b); } static Pair pair(A a) { return new Pair(a, a); } static List getClassNames(Collection l) { List out = new ArrayList(); if (l != null) for (Object o : l) out.add(o == null ? null : getClassName(o)); return out; } static Object call_cached(Object o, String method, Object... args) { try { if (o == null) return null; if (o instanceof Class) { Class c = (Class) o; _MethodCache cache = callOpt_getCache(c); // TODO: (super-rare) case where method exists static and non-static // with different args Method me = cache.findMethod(method, args); if (me == null) throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found"); if ((me.getModifiers() & Modifier.STATIC) == 0) throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not static"); return invokeMethod(me, null, args); } else { Class c = o.getClass(); _MethodCache cache = callOpt_getCache(c); Method me = cache.findMethod(method, args); if (me == null) throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found"); return invokeMethod(me, o, args); } } catch (Exception __e) { throw rethrow(__e); } } public static String join(String glue, Iterable strings) { if (strings == null) return ""; StringBuilder buf = new StringBuilder(); Iterator i = strings.iterator(); if (i.hasNext()) { buf.append(i.next()); while (i.hasNext()) buf.append(glue).append(i.next()); } return buf.toString(); } public static String join(String glue, String... strings) { return join(glue, Arrays.asList(strings)); } static String join(Iterable strings) { return join("", strings); } static String join(Iterable strings, String glue) { return join(glue, strings); } public static String join(String[] strings) { return join("", strings); } static String join(String glue, Pair p) { return p == null ? "" : str(p.a) + glue + str(p.b); } static final Map callOpt_cache = newDangerousWeakHashMap(); static Object callOpt_cached(Object o, String methodName, Object... args) { try { if (o == null) return null; if (o instanceof Class) { Class c = (Class) o; _MethodCache cache = callOpt_getCache(c); // TODO: (super-rare) case where method exists static and non-static // with different args Method me = cache.findMethod(methodName, args); if (me == null || (me.getModifiers() & Modifier.STATIC) == 0) return null; return invokeMethod(me, null, args); } else { Class c = o.getClass(); _MethodCache cache = callOpt_getCache(c); Method me = cache.findMethod(methodName, args); if (me == null) return null; return invokeMethod(me, o, args); } } catch (Exception __e) { throw rethrow(__e); } } static _MethodCache callOpt_getCache(Class c) { synchronized(callOpt_cache) { _MethodCache cache = callOpt_cache.get(c); if (cache == null) callOpt_cache.put(c, cache = new _MethodCache(c)); return cache; } } static Class __javax; static Class getJavaX() { try { return __javax; } catch (Exception __e) { throw rethrow(__e); } } static Throwable printStackTrace(Throwable e) { // we go to system.out now - system.err is nonsense print(getStackTrace(e)); return e; } static void printStackTrace() { printStackTrace(new Throwable()); } static void printStackTrace(String msg) { printStackTrace(new Throwable(msg)); } static void assertTrue(Object o) { if (!(eq(o, true) /*|| isTrue(pcallF(o))*/)) throw fail(str(o)); } static boolean assertTrue(String msg, boolean b) { if (!b) throw fail(msg); return b; } static boolean assertTrue(boolean b) { if (!b) throw fail("oops"); return b; } static String joinWithComma(Collection c) { return join(", ", c); } static String joinWithComma(String... c) { return join(", ", c); } static String joinWithComma(Pair p) { return p == null ? "" : joinWithComma(str(p.a), str(p.b)); } static String getStackTrace(Throwable throwable) { lastException(throwable); return getStackTrace_noRecord(throwable); } static String getStackTrace_noRecord(Throwable throwable) { StringWriter writer = new StringWriter(); throwable.printStackTrace(new PrintWriter(writer)); return hideCredentials(writer.toString()); } static String getStackTrace() { return getStackTrace_noRecord(new Throwable()); } // PersistableThrowable doesn't hold GC-disturbing class references in backtrace static volatile PersistableThrowable lastException_lastException; static PersistableThrowable lastException() { return lastException_lastException; } static void lastException(Throwable e) { lastException_lastException = persistableThrowable(e); } static String hideCredentials(URL url) { return url == null ? null : hideCredentials(str(url)); } static String hideCredentials(String url) { return url.replaceAll("([&?])(_pass|key)=[^&\\s\"]*", "$1$2="); } static String hideCredentials(Object o) { return hideCredentials(str(o)); } static PersistableThrowable persistableThrowable(Throwable e) { return e == null ? null : new PersistableThrowable(e); } // immutable, has strong refs final static class _MethodCache { final Class c; final HashMap> cache = new HashMap(); _MethodCache(Class c) { this.c = c; _init(); } void _init() { Class _c = c; while (_c != null) { for (Method m : _c.getDeclaredMethods()) { m.setAccessible(true); multiMapPut(cache, m.getName(), m); } _c = _c.getSuperclass(); } } // Returns only matching methods Method findMethod(String method, Object[] args) { try { List m = cache.get(method); if (m == null) return null; int n = m.size(); for (int i = 0; i < n; i++) { Method me = m.get(i); if (call_checkArgs(me, args, false)) return me; } return null; } catch (Exception __e) { throw rethrow(__e); } } }static abstract class VF1 { abstract void get(A a); }static class PersistableThrowable { String className; String msg; String stacktrace; PersistableThrowable() {} PersistableThrowable(Throwable e) { if (e == null) className = "Crazy Null Error"; else { className = getClassName(e).replace('/', '.'); msg = e.getMessage(); stacktrace = getStackTrace_noRecord(e); } } public String toString() { return nempty(msg) ? className + ": " + msg : className; } }static class Cache { Object maker; // func -> A A value; long loaded; static boolean debug; long changeCount; Lock lock = lock(); Cache() {} Cache(Object maker) { this.maker = maker;} A get() { if (hasLock(lock)) return value; // Must be called from within maker Lock __1257 = lock; lock(__1257); try { if (loaded == 0) { value = make(); changeCount++; loaded = sysNow(); } return value; } finally { unlock(__1257); } } void clear() { Lock __1258 = lock; lock(__1258); try { if (debug && loaded != 0) print("Clearing cache"); value = null; changeCount++; loaded = 0; } finally { unlock(__1258); } } // clear if older than x seconds // 0 does not do anything void clear(double seconds) { Lock __1259 = lock; lock(__1259); try { if (seconds != 0 && loaded != 0 && sysNow() >= loaded+seconds*1000) clear(); } finally { unlock(__1259); } } // override void set(A a) { Lock __1260 = lock; lock(__1260); try { value = a; ++changeCount; loaded = sysNow(); } finally { unlock(__1260); } } A make() { return (A) callF(maker); } }static class Pair implements Comparable> { A a; B b; Pair() {} Pair(A a, B b) { this.b = b; this.a = a;} public int hashCode() { return hashCodeFor(a) + 2*hashCodeFor(b); } public boolean equals(Object o) { if (o == this) return true; if (!(o instanceof Pair)) return false; Pair t = (Pair) o; return eq(a, t.a) && eq(b, t.b); } public String toString() { return "<" + a + ", " + b + ">"; } public int compareTo(Pair p) { if (p == null) return 1; int i = ((Comparable) a).compareTo(p.a); if (i != 0) return i; return ((Comparable) b).compareTo(p.b); } } static Method findMethod(Object o, String method, Object... args) { try { if (o == null) return null; if (o instanceof Class) { Method m = findMethod_static((Class) o, method, args, false); if (m == null) return null; m.setAccessible(true); return m; } else { Method m = findMethod_instance(o, method, args, false); if (m == null) return null; m.setAccessible(true); return m; } } catch (Exception e) { throw new RuntimeException(e); } } static Method findMethod_static(Class c, String method, Object[] args, boolean debug) { Class _c = c; while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (!m.getName().equals(method)) { if (debug) System.out.println("Method name mismatch: " + method); continue; } if ((m.getModifiers() & Modifier.STATIC) == 0 || !findMethod_checkArgs(m, args, debug)) continue; return m; } c = c.getSuperclass(); } return null; } static Method findMethod_instance(Object o, String method, Object[] args, boolean debug) { Class c = o.getClass(); while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (m.getName().equals(method) && findMethod_checkArgs(m, args, debug)) return m; } c = c.getSuperclass(); } return null; } static boolean findMethod_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } static boolean nempty(Collection c) { return !empty(c); } static boolean nempty(CharSequence s) { return !empty(s); } static boolean nempty(Object[] o) { return !empty(o); } static boolean nempty(byte[] o) { return !empty(o); } static boolean nempty(int[] o) { return !empty(o); } static boolean nempty(Map m) { return !empty(m); } static boolean nempty(Iterator i) { return i != null && i.hasNext(); } static boolean nempty(Object o) { return !empty(o); } static void lock(Lock lock) { try { ping(); if (lock == null) return; try { lock.lockInterruptibly(); } catch (InterruptedException e) { print("Locking interrupted! I probably deadlocked, oops."); printStackTrace(e); rethrow(e); } ping(); } catch (Exception __e) { throw rethrow(__e); } } static void lock(Lock lock, String msg) { print("Locking: " + msg); lock(lock); } static void lock(Lock lock, String msg, long timeout) { print("Locking: " + msg); lockOrFail(lock, timeout); } static ReentrantLock lock() { return fairLock(); } static boolean hasLock(Lock lock) { return ((ReentrantLock) lock).isHeldByCurrentThread(); } static String make(String pat, Object... args) { return format3(pat, args); } static long sysNow() { ping(); return System.nanoTime()/1000000; } static void unlock(Lock lock, String msg) { if (lock == null) return; print("Unlocking: " + msg); lock.unlock(); } static void unlock(Lock lock) { if (lock == null) return; lock.unlock(); } static void clear(Collection c) { if (c != null) c.clear(); } static int hashCodeFor(Object a) { return a == null ? 0 : a.hashCode(); } static boolean empty(Collection c) { return c == null || c.isEmpty(); } static boolean empty(CharSequence s) { return s == null || s.length() == 0; } static boolean empty(Map map) { return map == null || map.isEmpty(); } static boolean empty(Object[] o) { return o == null || o.length == 0; } static boolean empty(Object o) { if (o instanceof Collection) return empty((Collection) o); if (o instanceof String) return empty((String) o); if (o instanceof Map) return empty((Map) o); if (o instanceof Object[]) return empty((Object[]) o); if (o instanceof byte[]) return empty((byte[]) o); if (o == null) return true; throw fail("unknown type for 'empty': " + getType(o)); } static boolean empty(float[] a) { return a == null || a.length == 0; } static boolean empty(int[] a) { return a == null || a.length == 0; } static boolean empty(long[] a) { return a == null || a.length == 0; } static boolean empty(byte[] a) { return a == null || a.length == 0; } static boolean empty(File f) { return getFileSize(f) == 0; } static void lockOrFail(Lock lock, long timeout) { try { ping(); if (!lock.tryLock(timeout, TimeUnit.MILLISECONDS)) { String s = "Couldn't acquire lock after " + timeout + " ms."; if (lock instanceof ReentrantLock) { ReentrantLock l = (ReentrantLock) ( lock); s += " Hold count: " + l.getHoldCount() + ", owner: " + call(l, "getOwner"); } throw fail(s); } ping(); } catch (Exception __e) { throw rethrow(__e); } } static ReentrantLock fairLock() { return new ReentrantLock(true); } static String format3(String pat, Object... args) { if (args.length == 0) return pat; List tok = javaTokPlusPeriod(pat); int argidx = 0; for (int i = 1; i < tok.size(); i += 2) if (tok.get(i).equals("*")) tok.set(i, format3_formatArg(argidx < args.length ? args[argidx++] : "null")); return join(tok); } static String format3_formatArg(Object arg) { if (arg == null) return "null"; if (arg instanceof String) { String s = (String) arg; return isIdentifier(s) || isNonNegativeInteger(s) ? s : quote(s); } if (arg instanceof Integer || arg instanceof Long) return String.valueOf(arg); return quote(structure(arg)); } static String getType(Object o) { return getClassName(o); } static long getFileSize(String path) { return path == null ? 0 : new File(path).length(); } static long getFileSize(File f) { return f == null ? 0 : f.length(); } // This is made for NL parsing. // It's javaTok extended with "..." token, "$n" and "#n" and // special quotes (which are converted to normal ones). static List javaTokPlusPeriod(String s) { List tok = new ArrayList(); int l = s.length(); int i = 0; while (i < l) { int j = i; char c; String cc; // scan for whitespace while (j < l) { c = s.charAt(j); cc = s.substring(j, Math.min(j+2, l)); if (c == ' ' || c == '\t' || c == '\r' || c == '\n') ++j; else if (cc.equals("/*")) { do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/")); j = Math.min(j+2, l); } else if (cc.equals("//")) { do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0); } else break; } tok.add(s.substring(i, j)); i = j; if (i >= l) break; c = s.charAt(i); cc = s.substring(i, Math.min(i+2, l)); // scan for non-whitespace if (c == (char) 0x201C || c == (char) 0x201D) c = '"'; // normalize quotes if (c == '\'' || c == '"') { char opener = c; ++j; while (j < l) { char _c = s.charAt(j); if (_c == (char) 0x201C || _c == (char) 0x201D) _c = '"'; // normalize quotes if (_c == opener) { ++j; break; } else if (s.charAt(j) == '\\' && j+1 < l) j += 2; else ++j; } if (j-1 >= i+1) { tok.add(opener + s.substring(i+1, j-1) + opener); i = j; continue; } } else if (Character.isJavaIdentifierStart(c)) do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || s.charAt(j) == '\'')); // for things like "this one's" else if (Character.isDigit(c)) do ++j; while (j < l && Character.isDigit(s.charAt(j))); else if (cc.equals("[[")) { do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]")); j = Math.min(j+2, l); } else if (cc.equals("[=") && i+2 < l && s.charAt(i+2) == '[') { do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]")); j = Math.min(j+3, l); } else if (s.substring(j, Math.min(j+3, l)).equals("...")) j += 3; else if (c == '$' || c == '#') do ++j; while (j < l && Character.isDigit(s.charAt(j))); else ++j; tok.add(s.substring(i, j)); i = j; } if ((tok.size() % 2) == 0) tok.add(""); return tok; } static boolean isIdentifier(String s) { return isJavaIdentifier(s); } static boolean isNonNegativeInteger(String s) { return s != null && Pattern.matches("\\d+", s); } static String quote(Object o) { if (o == null) return "null"; return quote(str(o)); } static String quote(String s) { if (s == null) return "null"; StringBuilder out = new StringBuilder((int) (l(s)*1.5+2)); quote_impl(s, out); return out.toString(); } static void quote_impl(String s, StringBuilder out) { out.append('"'); int l = s.length(); for (int i = 0; i < l; i++) { char c = s.charAt(i); if (c == '\\' || c == '"') out.append('\\').append(c); else if (c == '\r') out.append("\\r"); else if (c == '\n') out.append("\\n"); else if (c == '\0') out.append("\\0"); else out.append(c); } out.append('"'); } static boolean structure_showTiming, structure_checkTokenCount; static String structure(Object o) { return structure(o, new structure_Data()); } static String structure(Object o, structure_Data d) { StringWriter sw = new StringWriter(); d.out = new PrintWriter(sw); structure_go(o, d); String s = str(sw); if (structure_checkTokenCount) { print("token count=" + d.n); assertEquals("token count", l(javaTokC(s)), d.n); } return s; } static void structure_go(Object o, structure_Data d) { structure_1(o, d); while (nempty(d.stack)) popLast(d.stack).run(); } static void structureToPrintWriter(Object o, PrintWriter out) { structure_Data d = new structure_Data(); d.out = out; structure_go(o, d); } // leave to false, unless unstructure() breaks static boolean structure_allowShortening = false; static class structure_Data { PrintWriter out; int stringSizeLimit; int shareStringsLongerThan = 20; boolean noStringSharing; IdentityHashMap seen = new IdentityHashMap(); //new BitSet refd; HashMap strings = new HashMap(); HashSet concepts = new HashSet(); HashMap> fieldsByClass = new HashMap(); HashMap persistenceInfo = new HashMap(); int n; // token count List stack = new ArrayList(); // append single token structure_Data append(String token) { out.print(token); ++n; return this; } structure_Data append(int i) { out.print(i); ++n; return this; } // append multiple tokens structure_Data append(String token, int tokCount) { out.print(token); n += tokCount; return this; } // extend last token structure_Data app(String token) { out.print(token); return this; } structure_Data app(int i) { out.print(i); return this; } } static void structure_1(final Object o, final structure_Data d) { try { if (o == null) { d.append("null"); return; } Class c = o.getClass(); boolean concept = false; List lFields = d.fieldsByClass.get(c); if (lFields == null) { // these are never back-referenced (for readability) if (o instanceof Number) { PrintWriter out = d.out; if (o instanceof Integer) { int i = ((Integer) o).intValue(); out.print(i); d.n += i < 0 ? 2 : 1; return; } if (o instanceof Long) { long l = ((Long) o).longValue(); out.print(l); out.print("L"); d.n += l < 0 ? 2 : 1; return; } if (o instanceof Short) { short s = ((Short) o).shortValue(); d.append("sh ", 2); out.print(s); d.n += s < 0 ? 2 : 1; return; } if (o instanceof Float) { d.append("fl ", 2); quoteToPrintWriter(str(o), out); return; } if (o instanceof Double) { d.append("d(", 3); quoteToPrintWriter(str(o), out); d.append(")"); return; } if (o instanceof BigInteger) { out.print("bigint("); out.print(o); out.print(")"); d.n += ((BigInteger) o).signum() < 0 ? 5 : 4; return; } } if (o instanceof Boolean) { d.append(((Boolean) o).booleanValue() ? "t" : "f"); return; } if (o instanceof Character) { d.append(quoteCharacter((Character) o)); return; } if (o instanceof File) { d.append("File ").append(quote(((File) o).getPath())); return; } // referencable objects follow Integer ref = d.seen.get(o); if (o instanceof String && ref == null) ref = d.strings.get((String) o); if (ref != null) { /*d.refd.set(ref);*/ d.append("t").app(ref); return; } if (!(o instanceof String)) d.seen.put(o, d.n); // record token number else { String s = d.stringSizeLimit != 0 ? shorten((String) o, d.stringSizeLimit) : (String) o; if (!d.noStringSharing) { if (d.shareStringsLongerThan == Integer.MAX_VALUE) d.seen.put(o, d.n); if (l(s) >= d.shareStringsLongerThan) d.strings.put(s, d.n); } quoteToPrintWriter(s, d.out); d.n++; return; } if (o instanceof HashSet) { d.append(o instanceof LinkedHashSet ? "lhs" : "hashset"); structure_1(new ArrayList((Set) o), d); return; } if (o instanceof TreeSet) { d.append("treeset"); structure_1(new ArrayList((Set) o), d); return; } String name = c.getName(); if (o instanceof Collection && !startsWith(name, "main$") /* && neq(name, "main$Concept$RefL") */) { if (name.equals("java.util.Collections$SynchronizedList") || name.equals("java.util.Collections$SynchronizedRandomAccessList")) d.append("sync"); d.append("["); final int l = d.n; final Iterator it = ((Collection) o).iterator(); d.stack.add(new Runnable() { public void run() { try { if (!it.hasNext()) d.append("]"); else { d.stack.add(this); if (d.n != l) d.append(", "); structure_1(it.next(), d); } } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "if (!it.hasNext())\r\n d.append(\"]\");\r\n else {\r\n d.sta..."; }}); return; } if (o instanceof Map && !startsWith(name, "main$")) { if (o instanceof LinkedHashMap) d.append("lhm"); else if (o instanceof HashMap) d.append("hm"); else if (name.equals("java.util.Collections$SynchronizedMap")) d.append("sync"); else if (name.equals("java.util.Collections$SynchronizedSortedMap")) { d.append("sync tm", 2); } d.append("{"); final int l = d.n; final Iterator it = ((Map) o).entrySet().iterator(); d.stack.add(new Runnable() { boolean v; Map.Entry e; public void run() { if (v) { d.append("="); v = false; d.stack.add(this); structure_1(e.getValue(), d); } else { if (!it.hasNext()) d.append("}"); else { e = (Map.Entry) it.next(); v = true; d.stack.add(this); if (d.n != l) d.append(", "); structure_1(e.getKey(), d); } } } }); return; } if (c.isArray()) { if (o instanceof byte[]) { d.append("ba ").append(quote(bytesToHex((byte[]) o))); return; } final int n = Array.getLength(o); if (o instanceof boolean[]) { String hex = boolArrayToHex((boolean[]) o); int i = l(hex); while (i > 0 && hex.charAt(i-1) == '0' && hex.charAt(i-2) == '0') i -= 2; d.append("boolarray ").append(n).app(" ").append(quote(substring(hex, 0, i))); return; } String atype = "array", sep = ", "; if (o instanceof int[]) { //ret "intarray " + quote(intArrayToHex((int[]) o)); atype = "intarray"; sep = " "; } d.append(atype).append("{"); d.stack.add(new Runnable() { int i; public void run() { if (i >= n) d.append("}"); else { d.stack.add(this); if (i > 0) d.append(", "); structure_1(Array.get(o, i++), d); } } }); return; } if (o instanceof Class) { d.append("class(", 2).append(quote(((Class) o).getName())).append(")"); return; } if (o instanceof Throwable) { d.append("exception(", 2).append(quote(((Throwable) o).getMessage())).append(")"); return; } if (o instanceof BitSet) { BitSet bs = (BitSet) o; d.append("bitset{", 2); int l = d.n; for (int i = bs.nextSetBit(0); i >= 0; i = bs.nextSetBit(i+1)) { if (d.n != l) d.append(", "); d.append(i); } d.append("}"); return; } // Need more cases? This should cover all library classes... if (name.startsWith("java.") || name.startsWith("javax.")) { d.append("j ").append(quote(str(o))); return; // Hm. this is not unstructure-able } /*if (name.equals("main$Lisp")) { fail("lisp not supported right now"); }*/ String dynName = shortDynamicClassName(o); if (concept && !d.concepts.contains(dynName)) { d.concepts.add(dynName); d.append("c "); } // serialize an object with fields. // first, collect all fields and values in fv. TreeSet fields = new TreeSet(new Comparator() { public int compare(Field a, Field b) { return stdcompare(a.getName(), b.getName()); } }); Class cc = c; while (cc != Object.class) { for (Field field : getDeclaredFields_cached(cc)) { String fieldName = field.getName(); if (fieldName.equals("_persistenceInfo")) d.persistenceInfo.put(c, field); if ((field.getModifiers() & (java.lang.reflect.Modifier.STATIC | java.lang.reflect.Modifier.TRANSIENT)) != 0) continue; fields.add(field); // put special cases here...? } cc = cc.getSuperclass(); } // TODO: S fieldOrder = getOpt(c, "_fieldOrder"); lFields = asList(fields); // Render this$1 first because unstructure needs it for constructor call. for (int i = 0; i < l(lFields); i++) { Field f = lFields.get(i); if (f.getName().equals("this$1")) { lFields.remove(i); lFields.add(0, f); break; } } d.fieldsByClass.put(c, lFields); } // << if (lFields == null) else { // ref handling for lFields != null Integer ref = d.seen.get(o); if (ref != null) { /*d.refd.set(ref);*/ d.append("t").app(ref); return; } d.seen.put(o, d.n); // record token number } Field persistenceInfoField = (Field) ( d.persistenceInfo.get(c)); Map persistenceInfo = persistenceInfoField == null ? null : (Map) persistenceInfoField.get(o); LinkedHashMap fv = new LinkedHashMap(); for (Field f : lFields) { Object value; try { value = f.get(o); } catch (Exception e) { value = "?"; } if (value != null && (persistenceInfo == null || !Boolean.FALSE.equals(persistenceInfo.get(f.getName())))) fv.put(f.getName(), value); } String name = c.getName(); String shortName = dropPrefix("main$", name); // Now we have fields & values. Process fieldValues if it's a DynamicObject. // omit field "className" if equal to class's name if (concept && eq(fv.get("className"), shortName)) fv.remove("className"); if (o instanceof DynamicObject) { fv.putAll((Map) fv.get("fieldValues")); fv.remove("fieldValues"); shortName = shortDynamicClassName(o); fv.remove("className"); } String singleField = fv.size() == 1 ? first(fv.keySet()) : null; d.append(shortName); final int l = d.n; final Iterator it = fv.entrySet().iterator(); d.stack.add(new Runnable() { public void run() { try { if (!it.hasNext()) { if (d.n != l) d.append(")"); } else { Map.Entry e = (Map.Entry) it.next(); d.append(d.n == l ? "(" : ", "); d.append((String) e.getKey()).append("="); d.stack.add(this); structure_1(e.getValue(), d); } } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "if (!it.hasNext()) {\r\n if (d.n != l)\r\n d.append(\")\");\r\n } else..."; }}); } catch (Exception __e) { throw rethrow(__e); } } static boolean isJavaIdentifier(String s) { if (empty(s) || !Character.isJavaIdentifierStart(s.charAt(0))) return false; for (int i = 1; i < s.length(); i++) if (!Character.isJavaIdentifierPart(s.charAt(i))) return false; return true; } static A assertEquals(Object x, A y) { return assertEquals(null, x, y); } static A assertEquals(String msg, Object x, A y) { if (assertVerbose()) return assertEqualsVerbose(msg, x, y); if (!(x == null ? y == null : x.equals(y))) throw fail((msg != null ? msg + ": " : "") + y + " != " + x); return y; } static List javaTokC(String s) { if (s == null) return null; int l = s.length(); ArrayList tok = new ArrayList(); int i = 0; while (i < l) { int j = i; char c, d; // scan for whitespace while (j < l) { c = s.charAt(j); d = j+1 >= l ? '\0' : s.charAt(j+1); if (c == ' ' || c == '\t' || c == '\r' || c == '\n') ++j; else if (c == '/' && d == '*') { do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/")); j = Math.min(j+2, l); } else if (c == '/' && d == '/') { do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0); } else break; } i = j; if (i >= l) break; c = s.charAt(i); d = i+1 >= l ? '\0' : s.charAt(i+1); // scan for non-whitespace if (c == '\'' || c == '"') { char opener = c; ++j; while (j < l) { if (s.charAt(j) == opener || s.charAt(j) == '\n') { // end at \n to not propagate unclosed string literal errors ++j; break; } else if (s.charAt(j) == '\\' && j+1 < l) j += 2; else ++j; } } else if (Character.isJavaIdentifierStart(c)) do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || "'".indexOf(s.charAt(j)) >= 0)); // for stuff like "don't" else if (Character.isDigit(c)) { do ++j; while (j < l && Character.isDigit(s.charAt(j))); if (j < l && s.charAt(j) == 'L') ++j; // Long constants like 1L } else if (c == '[' && d == '[') { do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]")); j = Math.min(j+2, l); } else if (c == '[' && d == '=' && i+2 < l && s.charAt(i+2) == '[') { do ++j; while (j+2 < l && !s.substring(j, j+3).equals("]=]")); j = Math.min(j+3, l); } else ++j; tok.add(javaTok_substringC(s, i, j)); i = j; } return tok; } static A popLast(List l) { return liftLast(l); } static void quoteToPrintWriter(String s, PrintWriter out) { if (s == null) { out.print("null"); return; } out.print('"'); int l = s.length(); for (int i = 0; i < l; i++) { char c = s.charAt(i); if (c == '\\' || c == '"') { out.print('\\'); out.print(c); } else if (c == '\r') out.print("\\r"); else if (c == '\n') out.print("\\n"); else if (c == '\0') out.print("\\0"); else out.print(c); } out.print('"'); } static String quoteCharacter(char c) { if (c == '\'') return "'\\''"; if (c == '\\') return "'\\\\'"; if (c == '\r') return "'\\r'"; if (c == '\n') return "'\\n'"; if (c == '\t') return "'\\t'"; return "'" + c + "'"; } static int shorten_default = 100; static String shorten(String s) { return shorten(s, shorten_default); } static String shorten(String s, int max) { return shorten(s, max, "..."); } static String shorten(String s, int max, String shortener) { if (s == null) return ""; if (max < 0) return s; return s.length() <= max ? s : substring(s, 0, min(s.length(), max-l(shortener))) + shortener; } static String shorten(int max, String s) { return shorten(s, max); } static boolean startsWith(String a, String b) { return a != null && a.startsWith(b); } static boolean startsWith(String a, char c) { return nempty(a) && a.charAt(0) == c; } static boolean startsWith(List a, List b) { if (a == null || l(b) > l(a)) return false; for (int i = 0; i < l(b); i++) if (neq(a.get(i), b.get(i))) return false; return true; } public static String bytesToHex(byte[] bytes) { return bytesToHex(bytes, 0, bytes.length); } public static String bytesToHex(byte[] bytes, int ofs, int len) { StringBuilder stringBuilder = new StringBuilder(len*2); for (int i = 0; i < len; i++) { String s = "0" + Integer.toHexString(bytes[ofs+i]); stringBuilder.append(s.substring(s.length()-2, s.length())); } return stringBuilder.toString(); } static String boolArrayToHex(boolean[] a) { return bytesToHex(boolArrayToBytes(a)); } static String substring(String s, int x) { return substring(s, x, l(s)); } static String substring(String s, int x, int y) { if (s == null) return null; if (x < 0) x = 0; if (x >= s.length()) return ""; if (y < x) y = x; if (y > s.length()) y = s.length(); return s.substring(x, y); } static Iterator emptyIterator() { return Collections.emptyIterator(); } static String shortDynamicClassName(Object o) { if (o instanceof DynamicObject && ((DynamicObject) o).className != null) return ((DynamicObject) o).className; return shortClassName(o); } static int stdcompare(Number a, Number b) { return cmp(a, b); } static int stdcompare(String a, String b) { return cmp(a, b); } static int stdcompare(long a, long b) { return a < b ? -1 : a > b ? 1 : 0; } static int stdcompare(Object a, Object b) { return cmp(a, b); } static Map getDeclaredFields_cache = newDangerousWeakHashMap(); static Field[] getDeclaredFields_cached(Class c) { Field[] fields; synchronized(getDeclaredFields_cache) { fields = getDeclaredFields_cache.get(c); if (fields == null) { getDeclaredFields_cache.put(c, fields = c.getDeclaredFields()); for (Field f : fields) f.setAccessible(true); } } return fields; } static ArrayList asList(A[] a) { return a == null ? new ArrayList() : new ArrayList(Arrays.asList(a)); } static ArrayList asList(int[] a) { ArrayList l = new ArrayList(); for (int i : a) l.add(i); return l; } static ArrayList asList(Iterable s) { if (s instanceof ArrayList) return (ArrayList) s; ArrayList l = new ArrayList(); if (s != null) for (A a : s) l.add(a); return l; } static ArrayList asList(Enumeration e) { ArrayList l = new ArrayList(); if (e != null) while (e.hasMoreElements()) l.add(e.nextElement()); return l; } static String dropPrefix(String prefix, String s) { return s == null ? null : s.startsWith(prefix) ? s.substring(l(prefix)) : s; } static Object first(Object list) { return empty((List) list) ? null : ((List) list).get(0); } static A first(List list) { return empty(list) ? null : list.get(0); } static A first(A[] bla) { return bla == null || bla.length == 0 ? null : bla[0]; } static A first(Iterable i) { if (i == null) return null; Iterator it = i.iterator(); return it.hasNext() ? it.next() : null; } static Character first(String s) { return empty(s) ? null : s.charAt(0); } static A first(Pair p) { return p == null ? null : p.a; } static ThreadLocal assertVerbose_value = new ThreadLocal(); static void assertVerbose(boolean b) { assertVerbose_value.set(b); } static boolean assertVerbose() { return isTrue(assertVerbose_value.get()); } static A assertEqualsVerbose(Object x, A y) { assertEqualsVerbose((String) null, x, y); return y; } static A assertEqualsVerbose(String msg, Object x, A y) { if (!eq(x, y)) { throw fail((msg != null ? msg + ": " : "") + /*sfu*/(y) + " != " + /*sfu*/(x)); } else print("OK: " + /*sfu*/(x)); return y; } static String javaTok_substringC(String s, int i, int j) { return s.substring(i, j); } static A liftLast(List l) { if (l.isEmpty()) return null; int i = l(l)-1; A a = l.get(i); l.remove(i); return a; } static int min(int a, int b) { return Math.min(a, b); } static long min(long a, long b) { return Math.min(a, b); } static float min(float a, float b) { return Math.min(a, b); } static float min(float a, float b, float c) { return min(min(a, b), c); } static double min(double a, double b) { return Math.min(a, b); } static double min(double[] c) { double x = Double.MAX_VALUE; for (double d : c) x = Math.min(x, d); return x; } static float min(float[] c) { float x = Float.MAX_VALUE; for (float d : c) x = Math.min(x, d); return x; } static byte min(byte[] c) { byte x = 127; for (byte d : c) if (d < x) x = d; return x; } static short min(short[] c) { short x = 0x7FFF; for (short d : c) if (d < x) x = d; return x; } static int min(int[] c) { int x = Integer.MAX_VALUE; for (int d : c) if (d < x) x = d; return x; } static boolean neq(Object a, Object b) { return !eq(a, b); } static byte[] boolArrayToBytes(boolean[] a) { byte[] b = new byte[(l(a)+7)/8]; for (int i = 0; i < l(a); i++) if (a[i]) b[i/8] |= 1 << (i & 7); return b; } static String shortClassName(Object o) { if (o == null) return null; Class c = o instanceof Class ? (Class) o : o.getClass(); String name = c.getName(); return shortenClassName(name); } static int cmp(Number a, Number b) { return a == null ? b == null ? 0 : -1 : cmp(a.doubleValue(), b.doubleValue()); } static int cmp(double a, double b) { return a < b ? -1 : a == b ? 0 : 1; } static int cmp(String a, String b) { return a == null ? b == null ? 0 : -1 : a.compareTo(b); } static int cmp(Object a, Object b) { if (a == null) return b == null ? 0 : -1; if (b == null) return 1; return ((Comparable) a).compareTo(b); } static boolean isTrue(Object o) { if (o instanceof Boolean) return ((Boolean) o).booleanValue(); if (o == null) return false; if (o instanceof ThreadLocal) return isTrue(((ThreadLocal) o).get()); throw fail(getClassName(o)); } static String shortenClassName(String name) { if (name == null) return null; int i = lastIndexOf(name, "$"); if (i < 0) i = lastIndexOf(name, "."); return i < 0 ? name : substring(name, i+1); } static int lastIndexOf(String a, String b) { return a == null || b == null ? -1 : a.lastIndexOf(b); } static int lastIndexOf(String a, char b) { return a == null ? -1 : a.lastIndexOf(b); } static ThreadLocal DynamicObject_loading = new ThreadLocal(); static class DynamicObject { String className; // just the name, without the "main$" LinkedHashMap fieldValues = new LinkedHashMap(); DynamicObject() {} // className = just the name, without the "main$" DynamicObject(String className) { this.className = className;} } }