Exemplo n.º 1
0
  /**
   * Set the object to be edited.
   *
   * @param value The object to be edited.
   */
  public void setObject(Object value) {
    if (!(_type.isInstance(value))) {
      throw new IllegalArgumentException(value.getClass() + " is not of type " + _type);
    }
    _value = value;

    // Disable event generation.
    _squelchChangeEvents = true;

    // Iterate over each property, doing a lookup on the associated editor
    // and setting the editor's value to the value of the property.
    Iterator it = _prop2Editor.keySet().iterator();
    while (it.hasNext()) {
      PropertyDescriptor desc = (PropertyDescriptor) it.next();
      PropertyEditor editor = (PropertyEditor) _prop2Editor.get(desc);
      Method reader = desc.getReadMethod();
      if (reader != null) {
        try {
          Object val = reader.invoke(_value, null);
          editor.setValue(val);
        } catch (IllegalAccessException ex) {
          ex.printStackTrace();
        } catch (InvocationTargetException ex) {
          ex.getTargetException().printStackTrace();
        }
      }
    }

    // Enable event generation.
    _squelchChangeEvents = false;
  }
Exemplo n.º 2
0
 /** evaluate the link function */
 public static Data link(VMethod m, Object[] o) throws VisADException {
   Data ans = null;
   if (o != null) {
     for (int i = 0; i < o.length; i++) {
       // convert VRealTypes to RealTypes
       if (o[i] instanceof VRealType) {
         o[i] = ((VRealType) o[i]).getRealType();
       }
     }
   }
   try {
     ans = (Data) FormulaUtil.invokeMethod(m.getMethod(), o);
   } catch (ClassCastException exc) {
     if (FormulaVar.DEBUG) exc.printStackTrace();
     throw new VisADException("Link error: invalid linked method");
   } catch (IllegalAccessException exc) {
     if (FormulaVar.DEBUG) exc.printStackTrace();
     throw new VisADException("Link error: cannot access linked method");
   } catch (IllegalArgumentException exc) {
     if (FormulaVar.DEBUG) exc.printStackTrace();
     throw new VisADException("Link error: bad method argument");
   } catch (InvocationTargetException exc) {
     if (FormulaVar.DEBUG) exc.getTargetException().printStackTrace();
     throw new VisADException("Link error: linked method threw an exception");
   }
   if (ans == null) {
     throw new VisADException("Link error: linked method returned null data");
   }
   return ans;
 }
Exemplo n.º 3
0
  private void bindDataSource(
      Component componentRoot, Object controller, Method method, UiDataSource dataSource) {
    String componentId = dataSource.value();
    Component component = Clara.findComponentById(componentRoot, componentId);
    Class<?> dataSourceClass = method.getReturnType();

    try {
      // Vaadin data model consists of Property/Item/Container
      // objects and each of them have a Viewer interface.
      if (isContainer(dataSourceClass) && component instanceof Container.Viewer) {
        ((Container.Viewer) component)
            .setContainerDataSource((Container) method.invoke(controller));
      } else if (isProperty(dataSourceClass) && component instanceof Property.Viewer) {
        ((Property.Viewer) component).setPropertyDataSource((Property) method.invoke(controller));
      } else if (isItem(dataSourceClass) && component instanceof Item.Viewer) {
        ((Item.Viewer) component).setItemDataSource((Item) method.invoke(controller));
      }
      // TODO exception handling
    } catch (IllegalAccessException e) {
      e.printStackTrace();
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
    } catch (InvocationTargetException e) {
      e.printStackTrace();
    }
  }
Exemplo n.º 4
0
  public static final void fireEvent(GenericEvent e, Method m, Vector listeners)
      throws PropertyVetoException {
    Object[] snapshot = null;

    synchronized (listeners) {
      snapshot = new Object[listeners.size()];
      listeners.copyInto(snapshot);
    }

    // leighd 04/14/99 - modified for event debugging
    if (gDebugEvents) Engine.debugLog("Event : " + e.toString());

    Object params[] = new Object[] {e};

    for (int i = 0; i < snapshot.length; i++) {
      if ((e instanceof Consumable) && ((Consumable) e).isConsumed()) {
        // leighd 04/14/99
        // note that we don't catch the consumption of the
        // event until we've passed through the loop again,
        // so we reference i-1
        if (gDebugEvents) Engine.debugLog("Consumed By : " + snapshot[i - 1]);
        return;
      }
      try {
        m.invoke(snapshot[i], params);
      } catch (IllegalAccessException iae) {
        iae.printStackTrace();
      } catch (InvocationTargetException ite) {
        Throwable t = ite.getTargetException();
        if (t instanceof PropertyVetoException) throw ((PropertyVetoException) t);
        else t.printStackTrace();
      }
    }
  }
Exemplo n.º 5
0
 /**
  * Insert the source code details, if available.
  *
  * @param ped The given program element.
  */
 public void addSourcePosition(ProgramElementDoc ped, int indent) {
   if (!addSrcInfo) return;
   if (JDiff.javaVersion.startsWith("1.1")
       || JDiff.javaVersion.startsWith("1.2")
       || JDiff.javaVersion.startsWith("1.3")) {
     return; // position() only appeared in J2SE1.4
   }
   try {
     // Could cache the method for improved performance
     Class c = ProgramElementDoc.class;
     Method m = c.getMethod("position", null);
     Object sp = m.invoke(ped, null);
     if (sp != null) {
       for (int i = 0; i < indent; i++) outputFile.print(" ");
       outputFile.println("src=\"" + sp + "\"");
     }
   } catch (NoSuchMethodException e2) {
     System.err.println("Error: method \"position\" not found");
     e2.printStackTrace();
   } catch (IllegalAccessException e4) {
     System.err.println("Error: class not permitted to be instantiated");
     e4.printStackTrace();
   } catch (InvocationTargetException e5) {
     System.err.println("Error: method \"position\" could not be invoked");
     e5.printStackTrace();
   } catch (Exception e6) {
     System.err.println("Error: ");
     e6.printStackTrace();
   }
 }
Exemplo n.º 6
0
  private void bindEventHandler(
      Component componentRoot, Object controller, Method method, UiHandler eventListener) {
    String componentId = eventListener.value();
    Component component = Clara.findComponentById(componentRoot, componentId);
    if (component == null) {
      throw new BinderException("No component found for id: " + componentId + ".");
    }

    Class<?> eventType =
        (method.getParameterTypes().length > 0 ? method.getParameterTypes()[0] : null);
    if (eventType == null) {
      throw new BinderException("Couldn't figure out event type for method " + method + ".");
    }

    Method addListenerMethod = getAddListenerMethod(component.getClass(), eventType);
    if (addListenerMethod != null) {
      try {
        Object listener =
            createListenerProxy(
                addListenerMethod.getParameterTypes()[0], eventType, method, controller);
        addListenerMethod.invoke(component, listener);
        // TODO exception handling
      } catch (IllegalAccessException e) {
        e.printStackTrace();
      } catch (IllegalArgumentException e) {
        e.printStackTrace();
      } catch (InvocationTargetException e) {
        e.printStackTrace();
      }
    }
  }
Exemplo n.º 7
0
  /**
   * Creates a new entity enumeration icon chooser.
   *
   * @param enumeration the enumeration to display in this combo box
   */
  public EnumerationIconChooser(Class<E> enumeration) {
    super();

    this.enumeration = enumeration;

    try {
      this.icons = (ImageIcon[]) enumeration.getMethod("getIcons").invoke(null);
      for (int i = 0; i < icons.length; i++) {
        addItem(icons[i]);
      }
    } catch (NoSuchMethodException ex) {
      System.err.println(
          "The method 'getIcons()' is missing in enumeration " + enumeration.getName());
      ex.printStackTrace();
      System.exit(1);
    } catch (IllegalAccessException ex) {
      System.err.println(
          "Cannot access method 'getIcons()' in enumeration "
              + enumeration.getName()
              + ": ex.getMessage()");
      ex.printStackTrace();
      System.exit(1);
    } catch (InvocationTargetException ex) {
      ex.getCause().printStackTrace();
      System.exit(1);
    }
  }
Exemplo n.º 8
0
  public Matrix createVector(BitVector selector) {
    int rows = selector != null ? selector.countOnBits() : frame.size();
    Matrix m = new Matrix(rows, 1);

    for (int i = 0, j = 0; j < frame.size(); j++) {
      if (selector == null || selector.isOn(j)) {
        M rowValue = frame.object(j);

        try {
          Number numValue = (Number) numericField.get(rowValue);
          m.set(i, 0, numValue.doubleValue());

        } catch (IllegalAccessException e) {
          e.printStackTrace();
          throw new IllegalStateException(
              String.format(
                  "Couldn't access field %s: %s", numericField.getName(), e.getMessage()));
        }

        i++;
      }
    }

    return m;
  }
Exemplo n.º 9
0
  public void createDataset(Dataset dataset) {
    try {
      MongoProvider provider = new MongoProvider("localhost", 10000, "test", null, null);
      dsDao = new DatasetDao();
      orgDao = new OrganizationDao();
      org = new Organization();
      org.setOrganizationId("orgId");
      ArrayList<Dataset> datasets = new ArrayList<>();
      datasets.add(dataset);
      org.setDatasets(datasets);
      org.setOrganizationUri("testUri");
      org.setHarvestingMetadata(new HarvestingMetadata());

      Field field;
      try {
        field = DatasetDao.class.getDeclaredField("provider");
        field.setAccessible(true);
        field.set(dsDao, provider);

        field = OrganizationDao.class.getDeclaredField("provider");
        field.setAccessible(true);
        field.set(orgDao, provider);
      } catch (NoSuchFieldException e) {
        e.printStackTrace();
      } catch (SecurityException e) {
        e.printStackTrace();
      } catch (IllegalArgumentException e) {
        e.printStackTrace();
      } catch (IllegalAccessException e) {
        e.printStackTrace();
      }
      dsDao.createDatasetForOrganization(org, dataset);
      orgDao.create(org);
      System.out.println(
          "Dataset: "
              + dsDao.getByName(dataset.getName()).getName()
              + " is saved in a virtual MongoDB");
      try {
        List<Dataset> allDatasetsByOrganization = orgDao.getAllDatasetsByOrganization("orgId");
        System.out.println("Datasets:");
        for (Dataset ds : allDatasetsByOrganization) {
          System.out.println(ds.getName());
        }
      } catch (NoOrganizationExceptionFound e) {
        e.printStackTrace();
      }
    } catch (UnknownHostException e) {
      e.printStackTrace();
    }
  }
Exemplo n.º 10
0
  /** 直接设置对象属性值, 无视private/protected修饰符, 不经过setter函数. */
  public static void setFieldValue(final Object obj, final String fieldName, final Object value) {
    Field field = getAccessibleField(obj, fieldName);

    if (field == null) {
      throw new IllegalArgumentException(
          "Could not find field [" + fieldName + "] on target [" + obj + "]");
    }

    try {
      field.set(obj, value);
    } catch (IllegalAccessException e) {
      logger.error("不可能抛出的异常:{}", e.getMessage());
    }
  }
Exemplo n.º 11
0
  /**
   * Examines a property's type to see which method should be used to parse the property's value.
   *
   * @param desc The description of the property
   * @param element The XML element containing the property value
   * @return The value stored in the element
   * @throws IOException If there is an error reading the document
   */
  public Object getObjectValue(PropertyDescriptor desc, Element element) throws IOException {
    // Find out what kind of property it is
    Class type = desc.getPropertyType();

    // If it's an array, get the base type
    if (type.isArray()) {
      type = type.getComponentType();
    }

    // For native types, object wrappers for natives, and strings, use the
    // basic parse routine
    if (type.equals(Integer.TYPE)
        || type.equals(Long.TYPE)
        || type.equals(Short.TYPE)
        || type.equals(Byte.TYPE)
        || type.equals(Boolean.TYPE)
        || type.equals(Float.TYPE)
        || type.equals(Double.TYPE)
        || Integer.class.isAssignableFrom(type)
        || Long.class.isAssignableFrom(type)
        || Short.class.isAssignableFrom(type)
        || Byte.class.isAssignableFrom(type)
        || Boolean.class.isAssignableFrom(type)
        || Float.class.isAssignableFrom(type)
        || Double.class.isAssignableFrom(type)
        || String.class.isAssignableFrom(type)) {
      return readBasicType(type, element);
    } else if (java.util.Date.class.isAssignableFrom(type)) {
      // If it's a date, use the date parser
      return readDate(element);
    } else {
      try {
        // If it's an object, create a new instance of the object (it should
        // be a bean, or there will be trouble)
        Object newOb = type.newInstance();

        // Copy the XML element into the bean
        readObject(newOb, element);

        return newOb;
      } catch (InstantiationException exc) {
        throw new IOException(
            "Error creating object for " + desc.getName() + ": " + exc.toString());
      } catch (IllegalAccessException exc) {
        throw new IOException(
            "Error creating object for " + desc.getName() + ": " + exc.toString());
      }
    }
  }
Exemplo n.º 12
0
 /**
  * Try to execute given method on given object. Handles invocation target exceptions. XXX nearly
  * duplicates tryMethod in JGEngine.
  *
  * @return null means method does not exist or returned null/void
  */
 static Object tryMethod(Object o, String name, Object[] args) {
   try {
     Method met = JREEngine.getMethod(o.getClass(), name, args);
     if (met == null) return null;
     return met.invoke(o, args);
   } catch (InvocationTargetException ex) {
     Throwable ex_t = ex.getTargetException();
     ex_t.printStackTrace();
     return null;
   } catch (IllegalAccessException ex) {
     System.err.println("Unexpected exception:");
     ex.printStackTrace();
     return null;
   }
 }
Exemplo n.º 13
0
  /** 直接读取对象属性值, 无视private/protected修饰符, 不经过getter函数. */
  public static Object getFieldValue(final Object obj, final String fieldName) {
    Field field = getAccessibleField(obj, fieldName);

    if (field == null) {
      throw new IllegalArgumentException(
          "Could not find field [" + fieldName + "] on target [" + obj + "]");
    }

    Object result = null;
    try {
      result = field.get(obj);
    } catch (IllegalAccessException e) {
      logger.error("不可能抛出的异常{}", e.getMessage());
    }
    return result;
  }
Exemplo n.º 14
0
  private void bindField(
      Component componentRoot, Object controller, Field field, UiField annotation) {
    String componentId = annotation.value();
    Component component = Clara.findComponentById(componentRoot, componentId);
    if (component == null) {
      throw new BinderException("No component found for id: " + componentId + ".");
    }

    try {
      field.setAccessible(true);
      field.set(controller, component);
      // TODO exception handling
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
    } catch (IllegalAccessException e) {
      e.printStackTrace();
    }
  }
Exemplo n.º 15
0
 // Lookup the value corresponding to a key found in catalog.getKeys().
 // Here we assume that the catalog returns a non-inherited value for
 // these keys. FIXME: Not true. Better see whether handleGetObject is
 // public - it is in ListResourceBundle and PropertyResourceBundle.
 private Object lookup(String key) {
   Object value = null;
   if (lookupMethod != null) {
     try {
       value = lookupMethod.invoke(catalog, new Object[] {key});
     } catch (IllegalAccessException e) {
       e.printStackTrace();
     } catch (InvocationTargetException e) {
       e.getTargetException().printStackTrace();
     }
   } else {
     try {
       value = catalog.getObject(key);
     } catch (MissingResourceException e) {
     }
   }
   return value;
 }
Exemplo n.º 16
0
    public void propertyChange(PropertyChangeEvent e) {
      if (_squelchChangeEvents) return;

      PropertyEditor editor = (PropertyEditor) e.getSource();
      PropertyDescriptor prop = (PropertyDescriptor) _editor2Prop.get(editor);
      Method writer = prop.getWriteMethod();
      if (writer != null) {
        try {
          Object[] params = {editor.getValue()};
          writer.invoke(_value, params);
          setObject(_value);
          firePropertyChange(_value, prop.getName(), null, editor.getValue());
        } catch (IllegalAccessException ex) {
          ex.printStackTrace();
        } catch (InvocationTargetException ex) {
          ex.getTargetException().printStackTrace();
        }
      }
    }
Exemplo n.º 17
0
  public Matrix createVector() {
    int rows = frame.size();
    Matrix m = new Matrix(rows, 1);

    for (int i = 0; i < rows; i++) {
      M rowValue = frame.object(i);
      try {
        Number numValue = (Number) numericField.get(rowValue);
        m.set(i, 0, numValue.doubleValue());

      } catch (IllegalAccessException e) {
        e.printStackTrace();
        throw new IllegalStateException(
            String.format("Couldn't access field %s: %s", numericField.getName(), e.getMessage()));
      }
    }

    return m;
  }
Exemplo n.º 18
0
 protected synchronized Message receiveMessage() throws IOException {
   if (messageBuffer.size() > 0) {
     Message m = (Message) messageBuffer.get(0);
     messageBuffer.remove(0);
     return m;
   }
   try {
     InetSocketAddress remoteAddress = (InetSocketAddress) channel.receive(receiveBuffer);
     if (remoteAddress != null) {
       int len = receiveBuffer.position();
       receiveBuffer.rewind();
       receiveBuffer.get(buf, 0, len);
       try {
         IP address = IP.fromInetAddress(remoteAddress.getAddress());
         int port = remoteAddress.getPort();
         extractor.appendData(buf, 0, len, new SocketDescriptor(address, port));
         receiveBuffer.clear();
         extractor.updateAvailableMessages();
         return extractor.nextMessage();
       } catch (EOFException exc) {
         exc.printStackTrace();
         System.err.println(buf.length + ", " + len);
       } catch (InvocationTargetException exc) {
         exc.printStackTrace();
       } catch (IllegalAccessException exc) {
         exc.printStackTrace();
       } catch (InstantiationException exc) {
         exc.printStackTrace();
       } catch (IllegalArgumentException e) {
         e.printStackTrace();
       } catch (InvalidCompressionMethodException e) {
         e.printStackTrace();
       }
     }
   } catch (ClosedChannelException exc) {
     if (isKeepAlive()) {
       throw exc;
     }
   }
   return null;
 }
Exemplo n.º 19
0
 protected PsmEvent run(PsmEvent event, PsmInterp interp, Object[] argArray) {
   try {
     return (PsmEvent) method.invoke(null, argArray);
   } catch (IllegalAccessException ex) {
     // This really should never happen, given the checks at
     // construction time.
     throw new PsmMethodActionException(ex.toString());
   } catch (InvocationTargetException ex) {
     // This may occur if the method throws a runtime exception.  Rather
     // than wrap it in a PsmMethodActionException, let it percolate up.
     // If not a RuntimeException, wrap it in a PsmMethodActionException.
     Throwable th = ex.getTargetException();
     if (th instanceof RuntimeException) {
       throw (RuntimeException) th;
     } else {
       throw new PsmMethodActionException(
           "Exception thrown from " + "target method invocation " + " is not a Runtime Exception",
           th);
     }
   }
 }
 /**
  * Parses array from given JSONArray. Supports parsing of primitive types and {@link
  * com.vk.sdk.api.model.VKApiModel} instances.
  *
  * @param array JSONArray to parse
  * @param arrayClass type of array field in class.
  * @return object to set to array field in class
  * @throws org.json.JSONException if given array have incompatible type with given field.
  */
 private static Object parseArrayViaReflection(JSONArray array, Class arrayClass)
     throws JSONException {
   Object result = Array.newInstance(arrayClass.getComponentType(), array.length());
   Class<?> subType = arrayClass.getComponentType();
   for (int i = 0; i < array.length(); i++) {
     try {
       Object item = array.opt(i);
       if (VKApiModel.class.isAssignableFrom(subType) && item instanceof JSONObject) {
         VKApiModel model = (VKApiModel) subType.newInstance();
         item = model.parse((JSONObject) item);
       }
       Array.set(result, i, item);
     } catch (InstantiationException e) {
       throw new JSONException(e.getMessage());
     } catch (IllegalAccessException e) {
       throw new JSONException(e.getMessage());
     } catch (IllegalArgumentException e) {
       throw new JSONException(e.getMessage());
     }
   }
   return result;
 }
Exemplo n.º 21
0
  /**
   * Fire an event to the registered listeners, but stop on a PropertyVetoException. Subclasses may
   * choose to implement their own fire method, and just use this class for the add/remove methods.
   *
   * @param evt the Event we're going to pass to the listeners
   * @throws java.beans.PropertyVetoException
   */
  protected final void firePropertyEvent(Object evt, Method m) throws PropertyVetoException {
    // grab a reference to the listeners
    Object[] array = fListeners;

    if (array.length == 0) return;

    Object[] params = fCachedParams;
    if (params == null) params = new Object[] {evt}; // wasn't available, make a new array
    else {
      fCachedParams = null; // set to null in case fire is called re-entrantly
      params[0] = evt;
    }

    try {
      for (int i = 0; i < array.length; i++) {
        try {
          m.invoke(array[i], params);
        } catch (IllegalAccessException iae) {
          iae.printStackTrace();
        } catch (InvocationTargetException ite) {
          Throwable t = ite.getTargetException();
          if (t instanceof PropertyVetoException) throw ((PropertyVetoException) t);
          else t.printStackTrace();
        }

        if ((evt instanceof Consumable) && ((Consumable) evt).isConsumed()) {
          if (gDebugEvents) Engine.debugLog("Consumed By : " + array[i]);
          return;
        }
      }
    } finally {
      // make our param array available for re-use
      // doesn't matter if we made it fresh, or already
      // reused it from a previous fire call
      params[0] = null;
      fCachedParams = params;
    }
  }
Exemplo n.º 22
0
  /**
   * オブジェクトのメソッドを呼び出す
   *
   * @param Object o メソッドを呼び出したいオブジェクト
   * @param String methodName 呼び出したいメソッドの名前
   * @param Object... args メソッドのパラメータ
   * @throws NoSuchMethodException
   */
  public static Object invoke(Object o, String methodName, Object... args)
      throws SecurityException, ClassNotFoundException, NoSuchMethodException {
    StringBuffer tempMessage = new StringBuffer();
    Method method = null;

    //		//argsArray:メソッドの引数の型配列
    //		Class<?>[] argsArray = new Class<?>[args.length];
    //		for(int i = 0; i < args.length; i++){
    //			argsArray[i] = getClassObject(args[i]);
    //			//スーパークラスを引数にとれるように修正
    //		}
    //		try {
    //			method = o.getClass().getMethod(methodName, argsArray);
    //		} catch (NoSuchMethodException e) {
    //			try{
    //				method = o.getClass().getDeclaredMethod(methodName, argsArray);
    //			}catch (NoSuchMethodException e2) {
    //					message = "NoSuchMethodException\r\n";
    //					display.append(message);
    //			}
    //		}
    /////////////////////////////////////////
    // argsArray:メソッドの引数の型配列
    Class<?>[] argsArray = new Class<?>[args.length];
    for (int i = 0; i < args.length; i++) {
      argsArray[i] = getClassObject(args[i]);
    }
    method = getMethod(o, args, methodName, argsArray);

    ////////////////////////////////////////
    tempMessage.append("method: " + method.getName() + " is called.\r\n");

    if (Modifier.isPrivate(method.getModifiers())) {
      method.setAccessible(true);
    }
    if (o.equals(null)) {
      if (Modifier.isStatic(method.getModifiers()) == false) {
        throw new NoSuchMethodException();
      }
    }

    try {
      Type returnType = method.getGenericReturnType();
      tempMessage.append("return type: " + returnType.toString() + "\r\n");
      if (returnType.equals(Void.TYPE)) {
        tempMessage.append("return value: " + "なし\r\n");
      } else {
        tempMessage.append("return value: " + method.invoke(o, args).toString() + "\r\n");
      }
      message = tempMessage.toString();
      display.append(message);
      return method.invoke(o, args);
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
      message = tempMessage.append("IllegalArgumentException\r\n").toString();
      display.append(message);
    } catch (IllegalAccessException e) {
      e.printStackTrace();
      message = tempMessage.append("IllegalAccessException\r\n").toString();
      display.append(message);
    } catch (InvocationTargetException e) {
      e.printStackTrace();
      tempMessage.append("InvocationTargetException\r\n");
      message = tempMessage.append(e.getCause().toString() + "\r\n").toString();
      display.append(message);
    }
    return null;
  }
  /**
   * Parses object with follow rules:
   *
   * <p>1. All fields should had a public access. 2. The name of the filed should be fully equal to
   * name of JSONObject key. 3. Supports parse of all Java primitives, all {@link String}, arrays of
   * primitive types, {@link String}s and {@link com.vk.sdk.api.model.VKApiModel}s, list
   * implementation line {@link VKList}, {@link com.vk.sdk.api.model.VKAttachments.VKAttachment} or
   * {@link com.vk.sdk.api.model.VKPhotoSizes}, {@link com.vk.sdk.api.model.VKApiModel}s.
   *
   * <p>4. Boolean fields defines by vk_int == 1 expression.
   *
   * @param object object to initialize
   * @param source data to read values
   * @param <T> type of result
   * @return initialized according with given data object
   * @throws org.json.JSONException if source object structure is invalid
   */
  @SuppressWarnings({"rawtypes", "unchecked"})
  public static <T> T parseViaReflection(T object, JSONObject source) throws JSONException {
    if (source.has("response")) {
      source = source.optJSONObject("response");
    }
    if (source == null) {
      return object;
    }
    for (Field field : object.getClass().getFields()) {
      field.setAccessible(true);
      String fieldName = field.getName();
      Class<?> fieldType = field.getType();

      Object value = source.opt(fieldName);
      if (value == null) {
        continue;
      }
      try {
        if (fieldType.isPrimitive() && value instanceof Number) {
          Number number = (Number) value;
          if (fieldType.equals(int.class)) {
            field.setInt(object, number.intValue());
          } else if (fieldType.equals(long.class)) {
            field.setLong(object, number.longValue());
          } else if (fieldType.equals(float.class)) {
            field.setFloat(object, number.floatValue());
          } else if (fieldType.equals(double.class)) {
            field.setDouble(object, number.doubleValue());
          } else if (fieldType.equals(boolean.class)) {
            field.setBoolean(object, number.intValue() == 1);
          } else if (fieldType.equals(short.class)) {
            field.setShort(object, number.shortValue());
          } else if (fieldType.equals(byte.class)) {
            field.setByte(object, number.byteValue());
          }
        } else {
          Object result = field.get(object);
          if (value.getClass().equals(fieldType)) {
            result = value;
          } else if (fieldType.isArray() && value instanceof JSONArray) {
            result = parseArrayViaReflection((JSONArray) value, fieldType);
          } else if (VKPhotoSizes.class.isAssignableFrom(fieldType) && value instanceof JSONArray) {
            Constructor<?> constructor = fieldType.getConstructor(JSONArray.class);
            result = constructor.newInstance((JSONArray) value);
          } else if (VKAttachments.class.isAssignableFrom(fieldType)
              && value instanceof JSONArray) {
            Constructor<?> constructor = fieldType.getConstructor(JSONArray.class);
            result = constructor.newInstance((JSONArray) value);
          } else if (VKList.class.equals(fieldType)) {
            ParameterizedType genericTypes = (ParameterizedType) field.getGenericType();
            Class<?> genericType = (Class<?>) genericTypes.getActualTypeArguments()[0];
            if (VKApiModel.class.isAssignableFrom(genericType)
                && Parcelable.class.isAssignableFrom(genericType)
                && Identifiable.class.isAssignableFrom(genericType)) {
              if (value instanceof JSONArray) {
                result = new VKList((JSONArray) value, genericType);
              } else if (value instanceof JSONObject) {
                result = new VKList((JSONObject) value, genericType);
              }
            }
          } else if (VKApiModel.class.isAssignableFrom(fieldType) && value instanceof JSONObject) {
            result = ((VKApiModel) fieldType.newInstance()).parse((JSONObject) value);
          }
          field.set(object, result);
        }
      } catch (InstantiationException e) {
        throw new JSONException(e.getMessage());
      } catch (IllegalAccessException e) {
        throw new JSONException(e.getMessage());
      } catch (NoSuchMethodException e) {
        throw new JSONException(e.getMessage());
      } catch (InvocationTargetException e) {
        throw new JSONException(e.getMessage());
      } catch (NoSuchMethodError e) {
        // Примечание Виталия:
        // Вы не поверите, но у некоторых вендоров getFields() вызывает ВОТ ЭТО.
        // Иногда я всерьез задумываюсь, правильно ли я поступил, выбрав Android в качестве
        // платформы разработки.
        throw new JSONException(e.getMessage());
      }
    }
    return object;
  }
Exemplo n.º 24
0
 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");
   }
 }
Exemplo n.º 25
0
  /**
   * Processes the request coming to the servlet and grabs the attributes set by the servlet and
   * uses them to fire off pre-determined methods set in the setupActionMethods function of the
   * servlet.
   *
   * @param request the http request coming from the browser.
   * @param response the http response going to the browser.
   * @throws javax.servlet.ServletException
   * @throws java.io.IOException
   */
  protected void processRequest(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    if (!actionInitialized) {
      LogController.write(this, "This dispatcher servlet is not initialized properly!");
      return;
    }

    if (actionTag == null) {
      LogController.write(this, "There is no action attribute tag name!");
      return;
    }

    HttpSession httpSession = request.getSession();
    UserSession userSession = (UserSession) httpSession.getAttribute("user_session");

    if (userSession == null) {
      LogController.write(this, "User session is no longer available in this http session.");

      userSession = new UserSession();

      // We always want a user session though...
      httpSession.setAttribute("user_session", userSession);
    }

    String action = (String) request.getAttribute(actionTag);

    try {
      if (action == null) {
        // There is no action attribute specified, check parameters.
        String external_action = (String) request.getParameter(actionTag);

        if (external_action != null) {
          Method method = externalActions.get(external_action);

          if (method != null) {
            LogController.write(this, "Performing external action: " + external_action);
            method.invoke(this, new Object[] {userSession, request, response});
          } else {
            if (defaultExternalMethod != null) {
              LogController.write(this, "Performing default external action.");
              defaultExternalMethod.invoke(this, new Object[] {userSession, request, response});
            } else {
              LogController.write(this, "Unable to perform default external action.");
            }
          }
        } else {
          if (defaultExternalMethod != null) {
            LogController.write(this, "Performing default external action.");
            defaultExternalMethod.invoke(this, new Object[] {userSession, request, response});
          } else {
            LogController.write(this, "Unable to perform default external action.");
          }
        }
      } else {
        Method method = internalActions.get(action);

        if (method != null) {
          LogController.write(this, "Performing internal action: " + action);
          method.invoke(this, new Object[] {userSession, request, response});
        } else {
          if (defaultInternalMethod != null) {
            LogController.write(this, "Performing default internal action.");
            defaultInternalMethod.invoke(this, new Object[] {userSession, request, response});
          } else {
            LogController.write(this, "Unable to perform default internal action.");
          }
        }

        request.removeAttribute("application_action");
      }
    } catch (IllegalAccessException accessEx) {
      LogController.write(this, "Exception while processing request: " + accessEx.getMessage());
    } catch (InvocationTargetException invokeEx) {
      LogController.write(this, "Exception while processing request: " + invokeEx.toString());
      invokeEx.printStackTrace();
    } catch (Exception ex) {
      LogController.write(this, "Unknown exception: " + ex.toString());
    }
  }
Exemplo n.º 26
0
  /**
   * Reads an XML element into a bean property by first locating the XML element corresponding to
   * this property.
   *
   * @param ob The bean whose property is being set
   * @param desc The property that will be set
   * @param nodes The list of XML items that may contain the property
   * @throws IOException If there is an error reading the document
   */
  public void readProperty(Object ob, PropertyDescriptor desc, NodeList nodes, NamedNodeMap attrs)
      throws IOException {
    int numAttrs = attrs.getLength();

    for (int i = 0; i < numAttrs; i++) {
      // See if the attribute name matches the property name
      if (namesMatch(desc.getName(), attrs.item(i).getNodeName())) {
        // Get the method used to set this property
        Method setter = desc.getWriteMethod();

        // If this object has no setter, don't bother writing it
        if (setter == null) continue;

        // Get the value of the property
        Object obValue = getObjectValue(desc, attrs.item(i).getNodeValue());
        if (obValue != null) {
          try {
            // Set the property value
            setter.invoke(ob, new Object[] {obValue});
          } catch (InvocationTargetException exc) {
            throw new IOException(
                "Error setting property " + desc.getName() + ": " + exc.toString());
          } catch (IllegalAccessException exc) {
            throw new IOException(
                "Error setting property " + desc.getName() + ": " + exc.toString());
          }
        }

        return;
      }
    }

    int numNodes = nodes.getLength();

    Vector arrayBuild = null;

    for (int i = 0; i < numNodes; i++) {
      Node node = nodes.item(i);

      // If this node isn't an element, skip it
      if (!(node instanceof Element)) continue;

      Element element = (Element) node;

      // See if the tag name matches the property name
      if (namesMatch(desc.getName(), element.getTagName())) {
        // Get the method used to set this property
        Method setter = desc.getWriteMethod();

        // If this object has no setter, don't bother writing it
        if (setter == null) continue;

        // Get the value of the property
        Object obValue = getObjectValue(desc, element);

        // 070201 MAW: Modified from change submitted by Steve Poulson
        if (setter.getParameterTypes()[0].isArray()) {
          if (arrayBuild == null) {
            arrayBuild = new Vector();
          }
          arrayBuild.addElement(obValue);

          // 070201 MAW: Go ahead and read through the rest of the nodes in case
          //             another one matches the array. This has the effect of skipping
          //             over the "return" statement down below
          continue;
        }

        if (obValue != null) {
          try {
            // Set the property value
            setter.invoke(ob, new Object[] {obValue});
          } catch (InvocationTargetException exc) {
            throw new IOException(
                "Error setting property " + desc.getName() + ": " + exc.toString());
          } catch (IllegalAccessException exc) {
            throw new IOException(
                "Error setting property " + desc.getName() + ": " + exc.toString());
          }
        }
        return;
      }
    }

    // If we build a vector of array members, convert the vector into
    // an array and save it in the property
    if (arrayBuild != null) {
      // Get the method used to set this property
      Method setter = desc.getWriteMethod();

      if (setter == null) return;

      Object[] obValues = (Object[]) Array.newInstance(desc.getPropertyType(), arrayBuild.size());

      arrayBuild.copyInto(obValues);

      try {
        setter.invoke(ob, new Object[] {obValues});
      } catch (InvocationTargetException exc) {
        throw new IOException("Error setting property " + desc.getName() + ": " + exc.toString());
      } catch (IllegalAccessException exc) {
        throw new IOException("Error setting property " + desc.getName() + ": " + exc.toString());
      }

      return;
    }
  }
Exemplo n.º 27
0
  /**
   * Reads XML element(s) into an indexed bean property by first locating the XML element(s)
   * corresponding to this property.
   *
   * @param ob The bean whose property is being set
   * @param desc The property that will be set
   * @param nodes The list of XML items that may contain the property
   * @throws IOException If there is an error reading the document
   */
  public void readIndexedProperty(
      Object ob, IndexedPropertyDescriptor desc, NodeList nodes, NamedNodeMap attrs)
      throws IOException {
    // Create a vector to hold the property values
    Vector v = new Vector();

    int numAttrs = attrs.getLength();

    for (int i = 0; i < numAttrs; i++) {
      // See if this attribute matches the property name
      if (namesMatch(desc.getName(), attrs.item(i).getNodeName())) {
        // Get the property value
        Object obValue = getObjectValue(desc, attrs.item(i).getNodeValue());

        if (obValue != null) {
          // Add the value to the list of values to be set
          v.addElement(obValue);
        }
      }
    }

    int numNodes = nodes.getLength();

    for (int i = 0; i < numNodes; i++) {
      Node node = nodes.item(i);

      // Skip non-element nodes
      if (!(node instanceof Element)) continue;

      Element element = (Element) node;

      // See if this element tag matches the property name
      if (namesMatch(desc.getName(), element.getTagName())) {
        // Get the property value
        Object obValue = getObjectValue(desc, element);

        if (obValue != null) {
          // Add the value to the list of values to be set
          v.addElement(obValue);
        }
      }
    }

    // Get the method used to set the property value
    Method setter = desc.getWriteMethod();

    // If this property has no setter, don't write it
    if (setter == null) return;

    // Create a new array of property values
    Object propArray = Array.newInstance(desc.getPropertyType().getComponentType(), v.size());

    // Copy the vector into the array
    v.copyInto((Object[]) propArray);

    try {
      // Store the array of property values
      setter.invoke(ob, new Object[] {propArray});
    } catch (InvocationTargetException exc) {
      throw new IOException("Error setting property " + desc.getName() + ": " + exc.toString());
    } catch (IllegalAccessException exc) {
      throw new IOException("Error setting property " + desc.getName() + ": " + exc.toString());
    }
  }
Exemplo n.º 28
0
  public static void main(String[] args) {

    // Obtain the class object if we know the name of the class
    Class rental = RentCar.class;
    try {
      // get the absolute name of the class
      String rentalClassPackage = rental.getName();
      System.out.println("Class Name is: " + rentalClassPackage);

      // get the simple name of the class (without package info)
      String rentalClassNoPackage = rental.getSimpleName();
      System.out.println("Class Name without package is: " + rentalClassNoPackage);

      // get the package name of the class
      Package rentalPackage = rental.getPackage();
      System.out.println("Package Name is: " + rentalPackage);

      // get all the constructors of the class
      Constructor[] constructors = rental.getConstructors();
      System.out.println("Constructors are: " + Arrays.toString(constructors));

      // get constructor with specific argument
      Constructor constructor = rental.getConstructor(Integer.TYPE);

      // initializing an object of the RentCar class
      RentCar rent = (RentCar) constructor.newInstance(455);

      // get all methods of the class including declared methods of
      // superclasses
      // in that case, superclass of RentCar is the class java.lang.Object
      Method[] allmethods = rental.getMethods();
      System.out.println("Methods are: " + Arrays.toString(allmethods));
      for (Method method : allmethods) {
        System.out.println("method = " + method.getName());
      }

      // get all methods declared in the class
      // but excludes inherited methods.
      Method[] declaredMethods = rental.getDeclaredMethods();
      System.out.println("Declared Methods are: " + Arrays.toString(declaredMethods));
      for (Method dmethod : declaredMethods) {
        System.out.println("method = " + dmethod.getName());
      }

      // get method with specific name and parameters
      Method oneMethod = rental.getMethod("computeRentalCost", new Class[] {Integer.TYPE});
      System.out.println("Method is: " + oneMethod);

      // call computeRentalCost method with parameter int
      oneMethod.invoke(rent, 4);

      // get all the parameters of computeRentalCost
      Class[] parameterTypes = oneMethod.getParameterTypes();
      System.out.println(
          "Parameter types of computeRentalCost() are: " + Arrays.toString(parameterTypes));

      // get the return type of computeRentalCost
      Class returnType = oneMethod.getReturnType();
      System.out.println("Return type is: " + returnType);

      // gets all the public member fields of the class RentCar
      Field[] fields = rental.getFields();

      System.out.println("Public Fields are: ");
      for (Field oneField : fields) {
        // get public field name
        Field field = rental.getField(oneField.getName());
        String fieldname = field.getName();
        System.out.println("Fieldname is: " + fieldname);

        // get public field type
        Object fieldType = field.getType();
        System.out.println("Type of field " + fieldname + " is: " + fieldType);

        // get public field value
        Object value = field.get(rent);
        System.out.println("Value of field " + fieldname + " is: " + value);
      }

      // How to access private member fields of the class

      // getDeclaredField() returns the private field
      Field privateField = RentCar.class.getDeclaredField("type");

      String name = privateField.getName();
      System.out.println("One private Fieldname is: " + name);
      // makes this private field instance accessible
      // for reflection use only, not normal code
      privateField.setAccessible(true);

      // get the value of this private field
      String fieldValue = (String) privateField.get(rent);
      System.out.println("fieldValue = " + fieldValue);

    } catch (NoSuchFieldException e) {
      e.printStackTrace();
    } catch (NoSuchMethodException e) {
      e.printStackTrace();
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
    } catch (IllegalAccessException e) {
      e.printStackTrace();
    } catch (InstantiationException e) {
      e.printStackTrace();
    } catch (InvocationTargetException e) {
      e.printStackTrace();
    }
  }