예제 #1
0
 public static <T> Constructor<T> findConstructor(Class<T> cls, boolean canFixAccess)
     throws IllegalArgumentException {
   try {
     Constructor<T> ctor = cls.getDeclaredConstructor();
     if (canFixAccess) {
       checkAndFixAccess(ctor);
     } else {
       // Has to be public...
       if (!Modifier.isPublic(ctor.getModifiers())) {
         throw new IllegalArgumentException(
             "Default constructor for "
                 + cls.getName()
                 + " is not accessible (non-public?): not allowed to try modify access via Reflection: can not instantiate type");
       }
     }
     return ctor;
   } catch (NoSuchMethodException e) {;
   } catch (Exception e) {
     ClassUtil.unwrapAndThrowAsIAE(
         e,
         "Failed to find default constructor of class "
             + cls.getName()
             + ", problem: "
             + e.getMessage());
   }
   return null;
 }
  /**
   * @param cacheName Cache name.
   * @param key Key.
   * @return Data key.
   * @throws Exception In case of error.
   */
  private Object key(String cacheName, int key) throws Exception {
    Class<?> cls = Class.forName(GridSpringDynamicCacheManager.class.getName() + "$DataKey");

    Constructor<?> cons = cls.getDeclaredConstructor(String.class, Object.class);

    cons.setAccessible(true);

    return cons.newInstance(cacheName, key);
  }
예제 #3
0
 public void process(File cFile) {
   try {
     String cName = ClassNameFinder.thisClass(BinaryFile.read(cFile));
     if (!cName.contains("")) return; // Ignore unpackaged classes
     testClass = Class.forName(cName);
   } catch (Exception e) {
     throw new RuntimeException(e);
   }
   TestMethods testMethods = new TestMethods();
   Method creator = null;
   Method cleanup = null;
   for (Method m : testClass.getDeclaredMethods()) {
     testMethods.addIfTestMethod(m);
     if (creator == null) creator = checkForCreatorMethod(m);
     if (cleanup == null) cleanup = checkForCleanupMethod(m);
   }
   if (testMethods.size() > 0) {
     if (creator == null)
       try {
         if (!Modifier.isPublic(testClass.getDeclaredConstructor().getModifiers())) {
           Print.print("Error: " + testClass + " default constructor must be public");
           System.exit(1);
         }
       } catch (NoSuchMethodException e) {
         // Synthesized default constructor; OK
       }
     Print.print(testClass.getName());
   }
   for (Method m : testMethods) {
     Print.printnb("  . " + m.getName() + " ");
     try {
       Object testObject = createTestObject(creator);
       boolean success = false;
       try {
         if (m.getReturnType().equals(boolean.class)) success = (Boolean) m.invoke(testObject);
         else {
           m.invoke(testObject);
           success = true; // If no assert fails
         }
       } catch (InvocationTargetException e) {
         // Actual exception is inside e:
         Print.print(e.getCause());
       }
       Print.print(success ? "" : "(failed)");
       testsRun++;
       if (!success) {
         failures++;
         failedTests.add(testClass.getName() + ": " + m.getName());
       }
       if (cleanup != null) cleanup.invoke(testObject, testObject);
     } catch (Exception e) {
       throw new RuntimeException(e);
     }
   }
 }
 /**
  * Create a channel with the given capacity and semaphore implementations instantiated from the
  * supplied class
  *
  * @exception IllegalArgumentException if capacity less or equal to zero.
  * @exception NoSuchMethodException If class does not have constructor that intializes permits
  * @exception SecurityException if constructor information not accessible
  * @exception InstantiationException if semaphore class is abstract
  * @exception IllegalAccessException if constructor cannot be called
  * @exception InvocationTargetException if semaphore constructor throws an exception
  */
 public SemaphoreControlledChannel(int capacity, Class semaphoreClass)
     throws IllegalArgumentException, NoSuchMethodException, SecurityException,
         InstantiationException, IllegalAccessException, InvocationTargetException {
   if (capacity <= 0) throw new IllegalArgumentException();
   capacity_ = capacity;
   Class[] longarg = {Long.TYPE};
   Constructor ctor = semaphoreClass.getDeclaredConstructor(longarg);
   Object[] cap = {Long.valueOf(capacity)};
   putGuard_ = (Semaphore) (ctor.newInstance(/*(Object[]) GemStoneAddition*/ cap));
   Object[] zero = {Long.valueOf(0)};
   takeGuard_ = (Semaphore) (ctor.newInstance(/*(Object[]) GemStoneAddition*/ zero));
 }
예제 #5
0
 @Override
 public T create() {
   Class<T> concreteClass = type.getConcreteClass();
   try {
     Constructor<T> declaredConstructor = concreteClass.getDeclaredConstructor();
     declaredConstructor.setAccessible(true);
     return declaredConstructor.newInstance();
   } catch (InvocationTargetException e) {
     throw UncheckedException.throwAsUncheckedException(e.getTargetException());
   } catch (Exception e) {
     throw UncheckedException.throwAsUncheckedException(e);
   }
 }
예제 #6
0
  @SuppressWarnings("unchecked")
  private static <T> Constructor<T> getConstructor(Class<T> type) {
    try {
      return type.getDeclaredConstructor();
    } catch (NoSuchMethodException e) {
      // Ignore
    }

    Constructor[] constructors = type.getConstructors();
    if (constructors.length != 1) {
      throw new IllegalStateException("Class " + type + " should have a single public constructor");
    }

    return constructors[0];
  }
예제 #7
0
 /**
  * 指定されたクラスのインスタンスを生成する
  *
  * @param Class<?> cls インスタンスを生成したいクラス
  * @param Object... args インスタンス生成に用いるパラメータ
  */
 public static Object getInstance(Class<?> cls, Object... args)
     throws IllegalArgumentException, InstantiationException, IllegalAccessException,
         InvocationTargetException, ClassNotFoundException, SecurityException,
         NoSuchMethodException {
   message = "以下のクラスのインスタンスを生成:" + cls.getName() + "\r\n";
   display.append(message);
   if (args == null) {
     return cls.newInstance();
   } else {
     Class<?>[] argsArray = new Class<?>[args.length];
     Constructor<?> con = null;
     for (int i = 0; i < args.length; i++) {
       System.out.println(args[i]);
       argsArray[i] = getClassObject(args[i]);
     }
     con = cls.getDeclaredConstructor(argsArray);
     return con.newInstance(args);
   }
 }
예제 #8
0
  private static final Record getTypedObject(int type) {
    if (type < 0 || type > knownRecords.length) return unknownRecord.getObject();
    if (knownRecords[type] != null) return knownRecords[type];

    /* Construct the class name by putting the type before "Record". */
    String s =
        Record.class.getPackage().getName() + "." + Type.string(type).replace('-', '_') + "Record";
    try {
      Class c = Class.forName(s);
      Constructor m = c.getDeclaredConstructor(emptyClassArray);
      knownRecords[type] = (Record) m.newInstance(emptyObjectArray);
    } catch (ClassNotFoundException e) {
      /* This is normal; do nothing */
    } catch (Exception e) {
      if (Options.check("verbose")) System.err.println(e);
    }
    if (knownRecords[type] == null) knownRecords[type] = unknownRecord.getObject();
    return knownRecords[type];
  }
예제 #9
0
 /**
  * Checks if a class fulfills the JavaBeans contract.
  *
  * @param cls the class to check
  */
 public static void checkJavaBean(Class<?> cls) {
   try {
     Constructor<?> constructor = cls.getDeclaredConstructor();
     int classModifiers = cls.getModifiers();
     if (Modifier.isInterface(classModifiers))
       throw new RuntimeException(cls.getName() + " is an interface");
     if (Modifier.isAbstract(classModifiers))
       throw new RuntimeException(
           cls.getName() + " cannot be instantiated - it is an abstract class");
     int modifiers = constructor.getModifiers();
     if (!Modifier.isPublic(modifiers))
       throw new RuntimeException("No public default constructor in " + cls);
   } catch (NoSuchMethodException e) {
     throw new RuntimeException("No default constructor in class " + cls);
   } catch (SecurityException e) {
     logger.error(
         "I am not allowed to check the class by using reflection, "
             + "so I just can hope the class is alright and go on: ",
         e);
   }
 }
예제 #10
0
  public static void main(String[] args) throws Exception {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    int num = Integer.parseInt(br.readLine().trim());
    Object o;

    // Solution starts here
    if (num < 1 || num > Math.pow(2, 30)) throw new Exception();
    Solution ob = new Solution();
    Class<?> c = Class.forName("Solution$Private");
    Constructor<?> constructor = c.getDeclaredConstructor(Solution.class);
    constructor.setAccessible(true);
    o = constructor.newInstance(ob);
    Method m = c.getDeclaredMethod("powerof2", new Class[] {int.class});
    m.setAccessible(true);
    String ans = (String) m.invoke(o, num);
    System.out.println(num + " is " + ans);
    // ends here

    System.out.println(
        "An instance of class: " + o.getClass().getSimpleName() + " has been created");
  } // end of main
예제 #11
0
  protected <T extends FluentPage> T initClass(Class<T> cls) {
    T page = null;
    try {
      Constructor construct = cls.getDeclaredConstructor();
      construct.setAccessible(true);
      page = (T) construct.newInstance();
      Class parent = Class.forName(Fluent.class.getName());
      Method m = parent.getDeclaredMethod("setDriver", WebDriver.class);
      m.setAccessible(true);
      m.invoke(page, getDriver());

      // init fields with default proxies
      Field[] fields = cls.getDeclaredFields();
      for (Field fieldFromPage : fields) {
        if (!FluentWebElement.class.isAssignableFrom(fieldFromPage.getType())) {
          continue;
        }
        fieldFromPage.setAccessible(true);
        proxyElement(new DefaultElementLocatorFactory(getDriver()), page, fieldFromPage);
      }
    } catch (ClassNotFoundException e) {
      throw new ConstructionException(
          "Class " + (cls != null ? cls.getName() : " null") + "not found", e);
    } catch (IllegalAccessException e) {
      throw new ConstructionException(
          "IllegalAccessException on class " + (cls != null ? cls.getName() : " null"), e);
    } catch (NoSuchMethodException e) {
      throw new ConstructionException(
          "No constructor found on class " + (cls != null ? cls.getName() : " null"), e);
    } catch (InstantiationException e) {
      throw new ConstructionException(
          "Unable to instantiate " + (cls != null ? cls.getName() : " null"), e);
    } catch (InvocationTargetException e) {
      throw new ConstructionException(
          "Cannot invoke method setDriver on " + (cls != null ? cls.getName() : " null"), e);
    }
    return page;
  }
예제 #12
0
  @SuppressWarnings("unchecked")
  LDAPObjectHandler(final Class<T> type) throws LDAPPersistException {
    this.type = type;

    final Class<? super T> superclassType = type.getSuperclass();
    if (superclassType == null) {
      superclassHandler = null;
    } else {
      final LDAPObject superclassAnnotation = superclassType.getAnnotation(LDAPObject.class);
      if (superclassAnnotation == null) {
        superclassHandler = null;
      } else {
        superclassHandler = new LDAPObjectHandler(superclassType);
      }
    }

    final TreeMap<String, FieldInfo> fields = new TreeMap<String, FieldInfo>();
    final TreeMap<String, GetterInfo> getters = new TreeMap<String, GetterInfo>();
    final TreeMap<String, SetterInfo> setters = new TreeMap<String, SetterInfo>();

    ldapObject = type.getAnnotation(LDAPObject.class);
    if (ldapObject == null) {
      throw new LDAPPersistException(ERR_OBJECT_HANDLER_OBJECT_NOT_ANNOTATED.get(type.getName()));
    }

    final LinkedHashMap<String, String> objectClasses = new LinkedHashMap<String, String>(10);

    final String oc = ldapObject.structuralClass();
    if (oc.length() == 0) {
      structuralClass = getUnqualifiedClassName(type);
    } else {
      structuralClass = oc;
    }

    final StringBuilder invalidReason = new StringBuilder();
    if (PersistUtils.isValidLDAPName(structuralClass, invalidReason)) {
      objectClasses.put(toLowerCase(structuralClass), structuralClass);
    } else {
      throw new LDAPPersistException(
          ERR_OBJECT_HANDLER_INVALID_STRUCTURAL_CLASS.get(
              type.getName(), structuralClass, invalidReason.toString()));
    }

    auxiliaryClasses = ldapObject.auxiliaryClass();
    for (final String auxiliaryClass : auxiliaryClasses) {
      if (PersistUtils.isValidLDAPName(auxiliaryClass, invalidReason)) {
        objectClasses.put(toLowerCase(auxiliaryClass), auxiliaryClass);
      } else {
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_AUXILIARY_CLASS.get(
                type.getName(), auxiliaryClass, invalidReason.toString()));
      }
    }

    superiorClasses = ldapObject.superiorClass();
    for (final String superiorClass : superiorClasses) {
      if (PersistUtils.isValidLDAPName(superiorClass, invalidReason)) {
        objectClasses.put(toLowerCase(superiorClass), superiorClass);
      } else {
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_SUPERIOR_CLASS.get(
                type.getName(), superiorClass, invalidReason.toString()));
      }
    }

    if (superclassHandler != null) {
      for (final String s : superclassHandler.objectClassAttribute.getValues()) {
        objectClasses.put(toLowerCase(s), s);
      }
    }

    objectClassAttribute = new Attribute("objectClass", objectClasses.values());

    final String parentDNStr = ldapObject.defaultParentDN();
    try {
      defaultParentDN = new DN(parentDNStr);
    } catch (LDAPException le) {
      throw new LDAPPersistException(
          ERR_OBJECT_HANDLER_INVALID_DEFAULT_PARENT.get(
              type.getName(), parentDNStr, le.getMessage()),
          le);
    }

    final String postDecodeMethodName = ldapObject.postDecodeMethod();
    if (postDecodeMethodName.length() > 0) {
      try {
        postDecodeMethod = type.getDeclaredMethod(postDecodeMethodName);
        postDecodeMethod.setAccessible(true);
      } catch (Exception e) {
        debugException(e);
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_POST_DECODE_METHOD.get(
                type.getName(), postDecodeMethodName, getExceptionMessage(e)),
            e);
      }
    } else {
      postDecodeMethod = null;
    }

    final String postEncodeMethodName = ldapObject.postEncodeMethod();
    if (postEncodeMethodName.length() > 0) {
      try {
        postEncodeMethod = type.getDeclaredMethod(postEncodeMethodName, Entry.class);
        postEncodeMethod.setAccessible(true);
      } catch (Exception e) {
        debugException(e);
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_POST_ENCODE_METHOD.get(
                type.getName(), postEncodeMethodName, getExceptionMessage(e)),
            e);
      }
    } else {
      postEncodeMethod = null;
    }

    try {
      constructor = type.getDeclaredConstructor();
      constructor.setAccessible(true);
    } catch (Exception e) {
      debugException(e);
      throw new LDAPPersistException(
          ERR_OBJECT_HANDLER_NO_DEFAULT_CONSTRUCTOR.get(type.getName()), e);
    }

    Field tmpDNField = null;
    Field tmpEntryField = null;
    final LinkedList<FieldInfo> tmpRFilterFields = new LinkedList<FieldInfo>();
    final LinkedList<FieldInfo> tmpAAFilterFields = new LinkedList<FieldInfo>();
    final LinkedList<FieldInfo> tmpCAFilterFields = new LinkedList<FieldInfo>();
    final LinkedList<FieldInfo> tmpRDNFields = new LinkedList<FieldInfo>();
    for (final Field f : type.getDeclaredFields()) {
      final LDAPField fieldAnnotation = f.getAnnotation(LDAPField.class);
      final LDAPDNField dnFieldAnnotation = f.getAnnotation(LDAPDNField.class);
      final LDAPEntryField entryFieldAnnotation = f.getAnnotation(LDAPEntryField.class);

      if (fieldAnnotation != null) {
        f.setAccessible(true);

        final FieldInfo fieldInfo = new FieldInfo(f, type);
        final String attrName = toLowerCase(fieldInfo.getAttributeName());
        if (fields.containsKey(attrName)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ATTR_CONFLICT.get(type.getName(), fieldInfo.getAttributeName()));
        } else {
          fields.put(attrName, fieldInfo);
        }

        switch (fieldInfo.getFilterUsage()) {
          case REQUIRED:
            tmpRFilterFields.add(fieldInfo);
            break;
          case ALWAYS_ALLOWED:
            tmpAAFilterFields.add(fieldInfo);
            break;
          case CONDITIONALLY_ALLOWED:
            tmpCAFilterFields.add(fieldInfo);
            break;
          case EXCLUDED:
          default:
            break;
        }

        if (fieldInfo.includeInRDN()) {
          tmpRDNFields.add(fieldInfo);
        }
      }

      if (dnFieldAnnotation != null) {
        f.setAccessible(true);

        if (fieldAnnotation != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_CONFLICTING_FIELD_ANNOTATIONS.get(
                  type.getName(), "LDAPField", "LDAPDNField", f.getName()));
        }

        if (tmpDNField != null) {
          throw new LDAPPersistException(ERR_OBJECT_HANDLER_MULTIPLE_DN_FIELDS.get(type.getName()));
        }

        final int modifiers = f.getModifiers();
        if (Modifier.isFinal(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_DN_FIELD_FINAL.get(f.getName(), type.getName()));
        } else if (Modifier.isStatic(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_DN_FIELD_STATIC.get(f.getName(), type.getName()));
        }

        final Class<?> fieldType = f.getType();
        if (fieldType.equals(String.class)) {
          tmpDNField = f;
        } else {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_INVALID_DN_FIELD_TYPE.get(
                  type.getName(), f.getName(), fieldType.getName()));
        }
      }

      if (entryFieldAnnotation != null) {
        f.setAccessible(true);

        if (fieldAnnotation != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_CONFLICTING_FIELD_ANNOTATIONS.get(
                  type.getName(), "LDAPField", "LDAPEntryField", f.getName()));
        }

        if (tmpEntryField != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_MULTIPLE_ENTRY_FIELDS.get(type.getName()));
        }

        final int modifiers = f.getModifiers();
        if (Modifier.isFinal(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ENTRY_FIELD_FINAL.get(f.getName(), type.getName()));
        } else if (Modifier.isStatic(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ENTRY_FIELD_STATIC.get(f.getName(), type.getName()));
        }

        final Class<?> fieldType = f.getType();
        if (fieldType.equals(ReadOnlyEntry.class)) {
          tmpEntryField = f;
        } else {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_INVALID_ENTRY_FIELD_TYPE.get(
                  type.getName(), f.getName(), fieldType.getName()));
        }
      }
    }

    dnField = tmpDNField;
    entryField = tmpEntryField;
    requiredFilterFields = Collections.unmodifiableList(tmpRFilterFields);
    alwaysAllowedFilterFields = Collections.unmodifiableList(tmpAAFilterFields);
    conditionallyAllowedFilterFields = Collections.unmodifiableList(tmpCAFilterFields);
    rdnFields = Collections.unmodifiableList(tmpRDNFields);

    final LinkedList<GetterInfo> tmpRFilterGetters = new LinkedList<GetterInfo>();
    final LinkedList<GetterInfo> tmpAAFilterGetters = new LinkedList<GetterInfo>();
    final LinkedList<GetterInfo> tmpCAFilterGetters = new LinkedList<GetterInfo>();
    final LinkedList<GetterInfo> tmpRDNGetters = new LinkedList<GetterInfo>();
    for (final Method m : type.getDeclaredMethods()) {
      final LDAPGetter getter = m.getAnnotation(LDAPGetter.class);
      final LDAPSetter setter = m.getAnnotation(LDAPSetter.class);

      if (getter != null) {
        m.setAccessible(true);

        if (setter != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_CONFLICTING_METHOD_ANNOTATIONS.get(
                  type.getName(), "LDAPGetter", "LDAPSetter", m.getName()));
        }

        final GetterInfo methodInfo = new GetterInfo(m, type);
        final String attrName = toLowerCase(methodInfo.getAttributeName());
        if (fields.containsKey(attrName) || getters.containsKey(attrName)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ATTR_CONFLICT.get(type.getName(), methodInfo.getAttributeName()));
        } else {
          getters.put(attrName, methodInfo);
        }

        switch (methodInfo.getFilterUsage()) {
          case REQUIRED:
            tmpRFilterGetters.add(methodInfo);
            break;
          case ALWAYS_ALLOWED:
            tmpAAFilterGetters.add(methodInfo);
            break;
          case CONDITIONALLY_ALLOWED:
            tmpCAFilterGetters.add(methodInfo);
            break;
          case EXCLUDED:
          default:
            // No action required.
            break;
        }

        if (methodInfo.includeInRDN()) {
          tmpRDNGetters.add(methodInfo);
        }
      }

      if (setter != null) {
        m.setAccessible(true);

        final SetterInfo methodInfo = new SetterInfo(m, type);
        final String attrName = toLowerCase(methodInfo.getAttributeName());
        if (fields.containsKey(attrName) || setters.containsKey(attrName)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ATTR_CONFLICT.get(type.getName(), methodInfo.getAttributeName()));
        } else {
          setters.put(attrName, methodInfo);
        }
      }
    }

    requiredFilterGetters = Collections.unmodifiableList(tmpRFilterGetters);
    alwaysAllowedFilterGetters = Collections.unmodifiableList(tmpAAFilterGetters);
    conditionallyAllowedFilterGetters = Collections.unmodifiableList(tmpCAFilterGetters);

    rdnGetters = Collections.unmodifiableList(tmpRDNGetters);
    if (rdnFields.isEmpty() && rdnGetters.isEmpty()) {
      throw new LDAPPersistException(ERR_OBJECT_HANDLER_NO_RDN_DEFINED.get(type.getName()));
    }

    fieldMap = Collections.unmodifiableMap(fields);
    getterMap = Collections.unmodifiableMap(getters);
    setterMap = Collections.unmodifiableMap(setters);

    final TreeSet<String> attrSet = new TreeSet<String>();
    final TreeSet<String> lazySet = new TreeSet<String>();
    if (ldapObject.requestAllAttributes()) {
      attrSet.add("*");
      attrSet.add("+");
    } else {
      for (final FieldInfo i : fields.values()) {
        if (i.lazilyLoad()) {
          lazySet.add(i.getAttributeName());
        } else {
          attrSet.add(i.getAttributeName());
        }
      }

      for (final SetterInfo i : setters.values()) {
        attrSet.add(i.getAttributeName());
      }
    }
    attributesToRequest = new String[attrSet.size()];
    attrSet.toArray(attributesToRequest);

    lazilyLoadedAttributes = new String[lazySet.size()];
    lazySet.toArray(lazilyLoadedAttributes);
  }