Example usage for java.lang.reflect Field setFloat

List of usage examples for java.lang.reflect Field setFloat

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Introduction

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

Prototype

@CallerSensitive
@ForceInline 
public void setFloat(Object obj, float f) throws IllegalArgumentException, IllegalAccessException

Source Link

Document

Sets the value of a field as a float on the specified object.

Usage

From source file:MyClass.java

public static void main(String[] args) throws Exception {
    Class<?> clazz = Class.forName("MyClass");
    MyClass x = (MyClass) clazz.newInstance();

    Field f = clazz.getField("i");
    System.out.println(f.getFloat(x));

    f.setFloat(x, 9.99F);
    System.out.println(f.getFloat(x));

}

From source file:Main.java

public static void keep_setFloat(Field field, Object obj, Cursor cursor, int i) {
    try {//  ww  w. j a  v  a  2s  . c o m
        if (field.getType().equals(Float.TYPE))
            field.setFloat(obj, cursor.getFloat(i));
        else
            field.set(obj, Float.valueOf(cursor.getFloat(i)));
    } catch (Exception exception) {
        exception.printStackTrace();
    }
}

From source file:truco.plugin.utils.Utils.java

public static void setWidthHeight(Player p, float height, float width, float length) {
    try {/*from   www.  j a v  a2 s  .c o m*/
        String currentVersion;
        Object propertyManager;
        Object obj = Bukkit.getServer().getClass().getDeclaredMethod("getServer").invoke(Bukkit.getServer());
        propertyManager = obj.getClass().getDeclaredMethod("getPropertyManager").invoke(obj);
        currentVersion = propertyManager.getClass().getPackage().getName();
        Method handle = p.getClass().getMethod("getHandle");
        Class c = Class.forName(currentVersion + ".Entity");

        Field field2 = c.getDeclaredField("width");
        Field field3 = c.getDeclaredField("length");
        field2.setFloat(handle.invoke(p), (float) width);
        field3.setFloat(handle.invoke(p), (float) length);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

From source file:com.fjn.helper.common.io.file.common.FileUpAndDownloadUtil.java

/**
 * ???????//from  w  ww  .java  2 s  .c  om
 * @param klass   ???klass?Class
 * @param filepath   ?
 * @param sizeThreshold   ??
 * @param isFileNameBaseTime   ????
 * @return bean
 */
public static <T> Object upload(HttpServletRequest request, Class<T> klass, String filepath, int sizeThreshold,
        boolean isFileNameBaseTime) throws Exception {
    FileItemFactory fileItemFactory = null;
    if (sizeThreshold > 0) {
        File repository = new File(filepath);
        fileItemFactory = new DiskFileItemFactory(sizeThreshold, repository);
    } else {
        fileItemFactory = new DiskFileItemFactory();
    }
    ServletFileUpload upload = new ServletFileUpload(fileItemFactory);
    ServletRequestContext requestContext = new ServletRequestContext(request);
    T bean = null;
    if (klass != null) {
        bean = klass.newInstance();
    }
    // 
    if (ServletFileUpload.isMultipartContent(requestContext)) {
        File parentDir = new File(filepath);

        List<FileItem> fileItemList = upload.parseRequest(requestContext);
        for (int i = 0; i < fileItemList.size(); i++) {
            FileItem item = fileItemList.get(i);
            // ??
            if (item.isFormField()) {
                String paramName = item.getFieldName();
                String paramValue = item.getString("UTF-8");
                log.info("?" + paramName + "=" + paramValue);
                request.setAttribute(paramName, paramValue);
                // ?bean
                if (klass != null) {
                    Field field = null;
                    try {
                        field = klass.getDeclaredField(paramName);

                        if (field != null) {
                            field.setAccessible(true);
                            Class type = field.getType();
                            if (type == Integer.TYPE) {
                                field.setInt(bean, Integer.valueOf(paramValue));
                            } else if (type == Double.TYPE) {
                                field.setDouble(bean, Double.valueOf(paramValue));
                            } else if (type == Float.TYPE) {
                                field.setFloat(bean, Float.valueOf(paramValue));
                            } else if (type == Boolean.TYPE) {
                                field.setBoolean(bean, Boolean.valueOf(paramValue));
                            } else if (type == Character.TYPE) {
                                field.setChar(bean, paramValue.charAt(0));
                            } else if (type == Long.TYPE) {
                                field.setLong(bean, Long.valueOf(paramValue));
                            } else if (type == Short.TYPE) {
                                field.setShort(bean, Short.valueOf(paramValue));
                            } else {
                                field.set(bean, paramValue);
                            }
                        }
                    } catch (NoSuchFieldException e) {
                        log.info("" + klass.getName() + "?" + paramName);
                    }
                }
            }
            // 
            else {
                // <input type='file' name='xxx'> xxx
                String paramName = item.getFieldName();
                log.info("?" + item.getSize());

                if (sizeThreshold > 0) {
                    if (item.getSize() > sizeThreshold)
                        continue;
                }
                String clientFileName = item.getName();
                int index = -1;
                // ?IE?
                if ((index = clientFileName.lastIndexOf("\\")) != -1) {
                    clientFileName = clientFileName.substring(index + 1);
                }
                if (clientFileName == null || "".equals(clientFileName))
                    continue;

                String filename = null;
                log.info("" + paramName + "\t??" + clientFileName);
                if (isFileNameBaseTime) {
                    filename = buildFileName(clientFileName);
                } else
                    filename = clientFileName;

                request.setAttribute(paramName, filename);

                // ?bean
                if (klass != null) {
                    Field field = null;
                    try {
                        field = klass.getDeclaredField(paramName);
                        if (field != null) {
                            field.setAccessible(true);
                            field.set(bean, filename);
                        }
                    } catch (NoSuchFieldException e) {
                        log.info("" + klass.getName() + "?  " + paramName);
                        continue;
                    }
                }

                if (!parentDir.exists()) {
                    parentDir.mkdirs();
                }

                File newfile = new File(parentDir, filename);
                item.write(newfile);
                String serverPath = newfile.getPath();
                log.info("?" + serverPath);
            }
        }
    }
    return bean;
}

From source file:com.vk.sdk.api.model.ParseUtils.java

/**
* Parses object with follow rules:/*from   w ww .j  a  v a2 s .  com*/
*
* 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 com.vk.sdk.api.model.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.
*
* 4. Boolean fields defines by vk_int == 1 expression.
* @param object object to initialize
* @param source data to read values
* @return initialized according with given data object
* @throws 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) {
            // ?????????? ???????:
            // ?? ?? ????????, ?? ? ????????? ???????? getFields() ???????? ??? ???.
            // ?????? ? ??????? ???????????, ????????? ?? ? ????????, ?????? Android ? ???????? ????????? ??????????.
            throw new JSONException(e.getMessage());
        }
    }
    return object;
}

From source file:org.flycraft.vkontakteapi.model.ParseUtils.java

/**
 * Parses object with follow rules:/*from   w ww  .j av a 2  s  . c om*/
 * <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 java.lang.String},
 * arrays of primitive types, {@link java.lang.String}s and {@link org.flycraft.vkontakteapi.model.VKApiModel}s,
 * list implementation line {@link org.flycraft.vkontakteapi.model.VKList}, {@link org.flycraft.vkontakteapi.model.VKAttachments.VKApiAttachment} or {@link org.flycraft.vkontakteapi.model.VKPhotoSizes},
 * {@link org.flycraft.vkontakteapi.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 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)
                            && 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) {
            //  ?:
            //   ,     getFields()   .
            //  ? ? ?,   ? ?,  Android  ?  .
            throw new JSONException(e.getMessage());
        }
    }
    return object;
}

From source file:com.vk.sdkweb.api.model.ParseUtils.java

/**
 * Parses object with follow rules://from   w  w w .  j a  va2  s . c  o m
 *
 * 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 java.lang.String},
 *  arrays of primitive types, {@link java.lang.String}s and {@link com.vk.sdkweb.api.model.VKApiModel}s,
 *  list implementation line {@link com.vk.sdkweb.api.model.VKList}, {@link com.vk.sdkweb.api.model.VKAttachments.VKAttachment} or {@link com.vk.sdkweb.api.model.VKPhotoSizes},
 *  {@link com.vk.sdkweb.api.model.VKApiModel}s.
 *
 * 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 JSONException if source object structure is invalid
 */
@SuppressWarnings("rawtypes")
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) {
            //  ?:
            //   ,     getFields()   .
            //  ? ? ?,   ? ?,  Android  ?  .
            throw new JSONException(e.getMessage());
        }
    }
    return object;
}

From source file:com.browseengine.bobo.serialize.JSONSerializer.java

private static void loadObject(Object retObj, Field f, JSONObject jsonObj) throws JSONSerializationException {
    String key = f.getName();//from  w w  w .ja  va 2 s .c  o m
    Class type = f.getType();
    try {
        if (type.isPrimitive()) {
            if (type == Integer.TYPE) {
                f.setInt(retObj, jsonObj.getInt(key));
            } else if (type == Long.TYPE) {
                f.setLong(retObj, jsonObj.getInt(key));
            } else if (type == Short.TYPE) {
                f.setShort(retObj, (short) jsonObj.getInt(key));
            } else if (type == Boolean.TYPE) {
                f.setBoolean(retObj, jsonObj.getBoolean(key));
            } else if (type == Double.TYPE) {
                f.setDouble(retObj, jsonObj.getDouble(key));
            } else if (type == Float.TYPE) {
                f.setFloat(retObj, (float) jsonObj.getDouble(key));
            } else if (type == Character.TYPE) {
                char ch = jsonObj.getString(key).charAt(0);
                f.setChar(retObj, ch);
            } else if (type == Byte.TYPE) {
                f.setByte(retObj, (byte) jsonObj.getInt(key));
            } else {
                throw new JSONSerializationException("Unknown primitive: " + type);
            }
        } else if (type == String.class) {
            f.set(retObj, jsonObj.getString(key));
        } else if (JSONSerializable.class.isAssignableFrom(type)) {
            JSONObject jObj = jsonObj.getJSONObject(key);
            JSONSerializable serObj = deSerialize(type, jObj);
            f.set(retObj, serObj);
        }
    } catch (Exception e) {
        throw new JSONSerializationException(e.getMessage(), e);
    }
}

From source file:org.apache.openjpa.enhance.Reflection.java

/**
 * Set the value of the given field in the given object.
 *//*from w w  w .  j a v  a  2s  . com*/
public static void set(Object target, Field field, float value) {
    if (target == null || field == null)
        return;
    makeAccessible(field, field.getModifiers());
    try {
        field.setFloat(target, value);
    } catch (Throwable t) {
        throw wrapReflectionException(t, _loc.get("set-field", new Object[] { target, field, value, "float" }));
    }
}

From source file:org.acoveo.tools.Reflection.java

/**
 * Set the value of the given field in the given object.
 *///from  ww w  .ja  va  2 s  .  co m
public static void set(Object target, Field field, float value) {
    if (target == null || field == null)
        return;
    makeAccessible(field, field.getModifiers());
    try {
        field.setFloat(target, value);
    } catch (Throwable t) {
        throw wrapReflectionException(t);
    }
}