Example usage for java.lang Object getClass

Introduction

In this page you can find the example usage for java.lang Object getClass.

Prototype

@HotSpotIntrinsicCandidate
public final native Class<?> getClass();

Source Link

Document

Returns the runtime class of this Object .

Usage

From source file:Main.java

public static void setVar(@NonNull Object obj, @NonNull String name, @Nullable Object val) throws Exception {
    for (Class cls = obj.getClass(); //
            cls != null && cls != Object.class; //
            cls = cls.getSuperclass()) {
        for (Field f : cls.getDeclaredFields()) {
            if (f.getName().equals(name)) {
                f.setAccessible(true);/*from  w w  w  .j av  a 2  s  .  c o  m*/
                f.set(obj, val);
                return;
            }
        }
    }
    throw new RuntimeException("no var matching " + name);
}

From source file:Main.java

static Map<String, Object> objectToMap(Object object) {
    Map<String, Object> map = new HashMap<>();

    Class cls = object.getClass();
    while (cls != null) {
        for (Field field : cls.getDeclaredFields()) {
            field.setAccessible(true);/*  www .j  a  v a2 s .co  m*/

            Object value = null;
            try {
                value = field.get(object);
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }

            if (value != null)
                map.put(field.getName(), value);
        }

        cls = cls.getSuperclass();
    }

    return map;
}

From source file:Main.java

/**
 * Returns of linked list of the objects given in the vararg.
 *
 * @param contents the objects to return in the list.
 * @param <T>      the class the given objects are instantiations of.
 * @return a linked list containing the given contents.
 * @throws AssertionError if any of the contents are not the same type.
 *///  www .  java 2s.com
public static <T> List<T> listOf(T... contents) {
    // Check all items in set are of same type...
    Class first_class = null;
    for (Object item : contents) {
        if (first_class == null) {
            first_class = item.getClass();
        } else {
            assert first_class == item.getClass();
        }
    }

    return new LinkedList<T>(Arrays.asList(contents));
}

From source file:Main.java

static public Object invokeMethod(Object owner, String methodName, Object... args) throws Exception {
    Class<?> ownerClass = owner.getClass();
    Class<?>[] argsClass = null;

    if (args != null && args.length > 0) {
        argsClass = new Class<?>[args.length];

        for (int i = 0, j = args.length; i < j; i++) {
            argsClass[i] = args[i].getClass();
            if (argsClass[i] == Integer.class) {
                argsClass[i] = int.class;
            } else if (argsClass[i] == Boolean.class) {
                argsClass[i] = boolean.class;
            }//  w w w  .j a  va  2  s  .  c  om
        }
    }

    Method method = ownerClass.getDeclaredMethod(methodName, argsClass);
    method.setAccessible(true);
    return method.invoke(owner, args);
}

From source file:Main.java

public static <T> T parse(final Class<T> clazz, final InputStream inputStream) {
    try {//w  w w.j a v  a  2  s  .  com
        final JAXBContext jaxbContext = JAXBContext.newInstance(clazz);
        final Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
        final Object deserialized = jaxbUnmarshaller.unmarshal(inputStream);
        if (clazz.isAssignableFrom(deserialized.getClass())) {
            return clazz.cast(deserialized);
        } else {
            final JAXBElement<T> jaxbElement = (JAXBElement<T>) deserialized;
            return jaxbElement.getValue();
        }
    } catch (final JAXBException e) {
        throw new RuntimeException(e);
    }
}

From source file:io.fns.calculator.filter.CORSFilter.java

private static Object getInstanceField(Object instance, String fieldName) throws Throwable {
    Field field = instance.getClass().getSuperclass().getDeclaredField(fieldName);
    field.setAccessible(true);// w ww  .  ja  va 2s .  c  o  m
    return field.get(instance);
}

From source file:ch.citux.td.util.Log.java

public static void e(Object caller, Exception exception) {
    e(caller.getClass(), exception);
}

From source file:Main.java

/**
 * Null safe getClass().toString() call on an object
 * @param obj the object to get the string representation from.
 * @return the class string./*from w  ww  .j a  v a  2 s. c  o m*/
 */
public static String getClassString(Object obj) {
    if (obj == null) {
        return "null";
    } else {
        return obj.getClass().toString();
    }
}

From source file:Main.java

/**
 * @since 2.4/*from w  w  w  .  j a va  2  s .c  o  m*/
 */
public static Marshaller createMarshaller(final Object object) throws JAXBException {
    JAXBContext context = createContext(object.getClass());
    Marshaller marshaller = context.createMarshaller();
    marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

    return marshaller;
}

From source file:org.cleverbus.core.common.contextcall.ReflectionCallUtils.java

/**
 * Invokes target method.// w w  w . ja  va  2 s. co m
 *
 * @param params the parameters of the call
 * @param beanFactory the Spring bean factory
 * @return response
 */
public static Object invokeMethod(ContextCallParams params, BeanFactory beanFactory) {
    // find target service
    Object targetService = beanFactory.getBean(params.getTargetType());

    // determine method's argument types
    List<Class> argTypes = new ArrayList<Class>();
    for (Object arg : params.getMethodArgs()) {
        argTypes.add(arg.getClass());
    }

    // exist method?
    Method method = ReflectionUtils.findMethod(params.getTargetType(), params.getMethodName(),
            argTypes.toArray(new Class[] {}));
    if (method == null) {
        throw new IllegalStateException("there is no method '" + params.getMethodName() + "' on target type '"
                + params.getTargetType().getSimpleName() + "'");
    }

    // invoke method
    return ReflectionUtils.invokeMethod(method, targetService, params.getMethodArgs().toArray());
}