Example usage for java.lang.reflect Field setAccessible

Introduction

In this page you can find the example usage for java.lang.reflect Field setAccessible.

Prototype

@Override
@CallerSensitive
public void setAccessible(boolean flag) 

Source Link

Usage

From source file:org.mongojack.internal.util.JacksonAccessor.java

private static Field findField(Class clazz, String name) {
    try {//from   w w  w  .j  a v  a 2s .c om
        Field field = clazz.getDeclaredField(name);
        field.setAccessible(true);
        return field;
    } catch (NoSuchFieldException e) {
        throw new RuntimeException(e);
    }
}

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From source file:se.berazy.api.examples.App.java

/**
 * Writes out all public fields.//w w  w . j av a2  s . c o  m
 * @param T response
 */
static <T> void outPutResponse(T response) {
    String retval = "\nResponse: \n";
    Class<?> clazz = response.getClass();
    Field[] fields = clazz.getDeclaredFields();
    for (Field field : fields) {
        field.setAccessible(true);
        if (!field.getName().equalsIgnoreCase("ExtensionData")) {
            try {
                retval += String.format("%s: %s\n", field.getName(), field.get(response));
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
    }
    System.out.println(retval);
}

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From source file:Main.java

public static ContentValues objectToContentValues(Object object) {
    if (object == null) {
        throw new IllegalArgumentException("please check your argument");
    }/*from   w  ww. j a v  a  2  s  . c  o m*/
    ContentValues contentValues = new ContentValues();
    try {
        Field[] fields = object.getClass().getDeclaredFields();
        for (Field field : fields) {
            String fieldName = field.getName();
            Type type = field.getType();
            field.setAccessible(true);
            if (type.equals(String.class)) {
                contentValues.put(fieldName, field.get(object).toString());
            } else if (type.equals(Integer.class) || type.equals(Integer.TYPE)) {
                contentValues.put(fieldName, field.getInt(object));
            } else if (type.equals(Float.class) || type.equals(Float.TYPE)) {
                contentValues.put(fieldName, field.getFloat(object));
            } else if (type.equals(Long.class) || type.equals(Long.TYPE)) {
                contentValues.put(fieldName, field.getLong(object));
            } else if (type.equals(Double.class) || type.equals(Double.TYPE)) {
                contentValues.put(fieldName, field.getDouble(object));
            } else if (type.equals(Boolean.class) || type.equals(Boolean.TYPE)) {
                contentValues.put(fieldName, field.getBoolean(object));
            }
        }
    } catch (IllegalAccessException | IllegalArgumentException e) {
        e.printStackTrace();
    }
    return contentValues;
}

---

From source file:com.microsoft.rest.Validator.java

/**
 * Validates a user provided required parameter to be not null.
 * A {@link ServiceException} is thrown if a property fails the validation.
 *
 * @param parameter the parameter to validate
 * @throws ServiceException failures wrapped in {@link ServiceException}
 *//*from  w  w  w  .  j av  a 2 s. co m*/
public static void validate(Object parameter) throws ServiceException {
    // Validation of top level payload is done outside
    if (parameter == null) {
        return;
    }

    Class parameterType = parameter.getClass();
    if (ClassUtils.isPrimitiveOrWrapper(parameterType) || parameterType.isEnum()
            || ClassUtils.isAssignable(parameterType, LocalDate.class)
            || ClassUtils.isAssignable(parameterType, DateTime.class)
            || ClassUtils.isAssignable(parameterType, String.class)
            || ClassUtils.isAssignable(parameterType, DateTimeRfc1123.class)
            || ClassUtils.isAssignable(parameterType, Period.class)) {
        return;
    }

    Field[] fields = FieldUtils.getAllFields(parameterType);
    for (Field field : fields) {
        field.setAccessible(true);
        JsonProperty annotation = field.getAnnotation(JsonProperty.class);
        Object property;
        try {
            property = field.get(parameter);
        } catch (IllegalAccessException e) {
            throw new ServiceException(e);
        }
        if (property == null) {
            if (annotation != null && annotation.required()) {
                throw new ServiceException(
                        new IllegalArgumentException(field.getName() + " is required and cannot be null."));
            }
        } else {
            try {
                Class propertyType = property.getClass();
                if (ClassUtils.isAssignable(propertyType, List.class)) {
                    List<?> items = (List<?>) property;
                    for (Object item : items) {
                        Validator.validate(item);
                    }
                } else if (ClassUtils.isAssignable(propertyType, Map.class)) {
                    Map<?, ?> entries = (Map<?, ?>) property;
                    for (Map.Entry<?, ?> entry : entries.entrySet()) {
                        Validator.validate(entry.getKey());
                        Validator.validate(entry.getValue());
                    }
                } else if (parameter.getClass().getDeclaringClass() != propertyType) {
                    Validator.validate(property);
                }
            } catch (ServiceException ex) {
                IllegalArgumentException cause = (IllegalArgumentException) (ex.getCause());
                if (cause != null) {
                    // Build property chain
                    throw new ServiceException(
                            new IllegalArgumentException(field.getName() + "." + cause.getMessage()));
                } else {
                    throw ex;
                }
            }
        }
    }
}

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From source file:utils.ReflectionService.java

public static JsonNode createJsonNode(Class clazz, int maxDeep) {

    if (maxDeep <= 0 || JsonNode.class.isAssignableFrom(clazz)) {
        return null;
    }//w  w  w .  j av a 2s  .c  om

    ObjectMapper objectMapper = new ObjectMapper();
    ObjectNode objectNode = objectMapper.createObjectNode();

    for (Field field : clazz.getDeclaredFields()) {
        field.setAccessible(true);
        String key = field.getName();
        try {
            // is array or collection
            if (field.getType().isArray() || Collection.class.isAssignableFrom(field.getType())) {
                ParameterizedType collectionType = (ParameterizedType) field.getGenericType();
                Class<?> type = (Class<?>) collectionType.getActualTypeArguments()[0];
                ArrayNode arrayNode = objectMapper.createArrayNode();
                arrayNode.add(createJsonNode(type, maxDeep - 1));
                objectNode.put(key, arrayNode);
            } else {
                Class<?> type = field.getType();
                if (Modifier.isStatic(field.getModifiers())) {
                    continue;
                } else if (type.isEnum()) {
                    objectNode.put(key, Enum.class.getName());
                } else if (!type.getName().startsWith("java") && !key.startsWith("_")) {
                    objectNode.put(key, createJsonNode(type, maxDeep - 1));
                } else {
                    objectNode.put(key, type.getName());
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return objectNode;
}

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From source file:com.github.sumimakito.quickkv.util.DataProcessor.java

public static void printFieldsOfObject(Object object) {
    System.out.println("[Fields of Object: " + object.getClass().getSimpleName() + "]");
    for (Field field : object.getClass().getDeclaredFields()) {
        field.setAccessible(true); // You might want to set modifier to public first.
        Object value = null;/*w w w.  j  a v  a  2  s  . c o m*/
        try {
            value = field.get(object);
            if (value != null) {
                System.out.println("- (" + value.getClass().getSimpleName() + ")[" + field.getName() + "]=["
                        + value + "]");
            }
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
    }
}

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From source file:Main.java

public static <C> C cloneObject(C original) {
    try {// w  w  w.  java  2  s.  c  o  m
        C clone = (C) original.getClass().newInstance();
        for (Field field : getAllFieldsValues(original.getClass())) {
            field.setAccessible(true);
            if (field.get(original) == null || Modifier.isFinal(field.getModifiers())) {
                continue;
            }
            if (field.getType().isPrimitive() || field.getType().equals(String.class)
                    || field.getType().getSuperclass().equals(Number.class)
                    || field.getType().equals(Boolean.class)) {
                field.set(clone, field.get(original));
            } else {
                Object childObj = field.get(original);
                if (childObj == original) {
                    field.set(clone, clone);
                } else {
                    field.set(clone, cloneObject(field.get(original)));
                }
            }
        }
        return clone;
    } catch (Exception e) {
        return null;
    }
}

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From source file:io.wcm.caravan.commons.httpasyncclient.impl.HttpClientTestUtils.java

private static Object getField(Object object, Class clazz, String fieldName) {
    Field field;
    try {/* www  .j  a  v  a2s  . c o m*/
        field = clazz.getDeclaredField(fieldName);
        field.setAccessible(true);
        return field.get(object);
    } catch (NoSuchFieldException ex) {
        Class superClazz = clazz.getSuperclass();
        if (superClazz != null) {
            return getField(object, superClazz, fieldName);
        } else {
            throw new RuntimeException("Unable to get field value for '" + fieldName + "'.", ex);
        }
    } catch (SecurityException | IllegalArgumentException | IllegalAccessException ex) {
        throw new RuntimeException("Unable to get field value for '" + fieldName + "'.", ex);
    }
}

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From source file:ReflectionHelper.java

/**
 * Set the value of the field of the object to the given value.
 * //from   ww  w .j  ava 2s .c o m
 * @param original
 *            object to modify
 * @param field
 *            field to modify
 * @param value
 *            new value for the given object and field
 * @throws NoSuchFieldException
 * @throws IllegalAccessException
 */
public static void setStaticFinalField(Object original, Field field, Object value)
        throws NoSuchFieldException, IllegalAccessException {
    // we mark the field to be public
    field.setAccessible(true);
    // next we change the modifier in the Field instance to
    // not be final anymore, thus tricking reflection into
    // letting us modify the static final field
    Field modifiersField = Field.class.getDeclaredField(MODIFIERS_FIELD);
    modifiersField.setAccessible(true);
    int modifiers = modifiersField.getInt(field);
    // blank out the final bit in the modifiers int
    modifiers &= ~Modifier.FINAL;
    modifiersField.setInt(field, modifiers);
    FieldAccessor fa = reflection.newFieldAccessor(field, false);
    fa.set(original, value);
}

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From source file:com.dwdesign.tweetings.util.WebViewProxySettings.java

private static Object getDeclaredField(Object obj, String name)
        throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException {
    final Field f = obj.getClass().getDeclaredField(name);
    f.setAccessible(true);
    return f.get(obj);
}

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