Example usage for java.lang.reflect Array getLength

List of usage examples for java.lang.reflect Array getLength

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Introduction

In this page you can find the example usage for java.lang.reflect Array getLength.

Prototype

@HotSpotIntrinsicCandidate
public static native int getLength(Object array) throws IllegalArgumentException;

Source Link

Document

Returns the length of the specified array object, as an int .

Usage

From source file:ca.oson.json.Oson.java

private byte[] json2ArrayByte(FieldData objectDTO) {
    if (objectDTO.valueToProcess == null) {
        return null;
    }//from  ww w.  j  a  v  a2 s  .c  o  m

    Function function = objectDTO.getDeserializer();

    Object returnedValue = objectDTO.valueToProcess;

    if (function != null) {
        try {

            // suppose to return String, but in case not, try to process
            if (function instanceof Json2DataMapperFunction) {
                DataMapper classData = new DataMapper(objectDTO.returnType, objectDTO.valueToProcess,
                        objectDTO.classMapper, objectDTO.level, getPrettyIndentation());
                returnedValue = ((Json2DataMapperFunction) function).apply(classData);

            } else if (function instanceof Json2FieldDataFunction) {
                Json2FieldDataFunction f = (Json2FieldDataFunction) function;
                FieldData fieldData = objectDTO.clone();

                returnedValue = f.apply(fieldData);

            } else if (function instanceof Json2ArrayFunction) {
                returnedValue = ((Json2ArrayFunction) function).apply(objectDTO.valueToProcess);

            } else {
                returnedValue = function.apply(objectDTO.valueToProcess);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    if (returnedValue == null) {
        return null;

    } else if (returnedValue.getClass().isArray()) {
        if (returnedValue.getClass() == byte[].class) {
            return (byte[]) returnedValue;
        }

        int size = Array.getLength(returnedValue);
        byte[] arr = new byte[size];
        int i = 0, j = 0;
        while (j < size) {
            try {
                arr[i] = (byte) NumberUtil.getNumber(Array.get(returnedValue, j), byte.class);
                i++;
            } catch (Exception ex) {
            }
            j++;
        }

        if (i == size) {
            return arr;
        }
        return Arrays.copyOfRange(arr, 0, i);

    } else if (!Collection.class.isAssignableFrom(returnedValue.getClass())) {
        return null;
    }

    Collection values = (Collection) returnedValue;

    int size = values.size();
    byte[] arr = new byte[size];
    int i = 0;

    for (Object value : values) {
        if (value != null) {
            try {
                arr[i] = (byte) NumberUtil.getNumber(value, byte.class);
                i++;
            } catch (Exception ex) {
            }
        }
    }

    if (i == size) {
        return arr;
    }
    return Arrays.copyOfRange(arr, 0, i);
}

From source file:ca.oson.json.Oson.java

private char[] json2ArrayChar(FieldData objectDTO) {
    if (objectDTO.valueToProcess == null) {
        return null;
    }/*from   w ww.ja  v  a  2s .co  m*/

    Function function = objectDTO.getDeserializer();

    Object returnedValue = objectDTO.valueToProcess;

    if (function != null) {
        try {

            // suppose to return String, but in case not, try to process
            if (function instanceof Json2DataMapperFunction) {
                DataMapper classData = new DataMapper(objectDTO.returnType, objectDTO.valueToProcess,
                        objectDTO.classMapper, objectDTO.level, getPrettyIndentation());
                returnedValue = ((Json2DataMapperFunction) function).apply(classData);

            } else if (function instanceof Json2FieldDataFunction) {
                Json2FieldDataFunction f = (Json2FieldDataFunction) function;
                FieldData fieldData = objectDTO.clone();

                returnedValue = f.apply(fieldData);

            } else if (function instanceof Json2ArrayFunction) {
                returnedValue = ((Json2ArrayFunction) function).apply(objectDTO.valueToProcess);

            } else {
                returnedValue = function.apply(objectDTO.valueToProcess);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    if (returnedValue == null) {
        return null;

    } else if (returnedValue.getClass().isArray()) {
        if (returnedValue.getClass() == char[].class) {
            return (char[]) returnedValue;
        }

        int size = Array.getLength(returnedValue);
        char[] arr = new char[size];
        int i = 0, j = 0;
        while (j < size) {
            try {
                Object obj = Array.get(returnedValue, j);
                if (obj.getClass() == Character.class || obj.getClass() == char.class) {
                    arr[i] = (char) obj;

                } else {
                    String str = StringUtil.unquote(obj.toString(), isEscapeHtml());
                    arr[i] = str.charAt(0);
                }
                i++;
            } catch (Exception ex) {
            }
            j++;
        }

        if (i == size) {
            return arr;
        }
        return Arrays.copyOfRange(arr, 0, i);

    } else if (!Collection.class.isAssignableFrom(returnedValue.getClass())) {
        return null;
    }

    Collection values = (Collection) returnedValue;

    int size = values.size();
    char[] arr = new char[size];
    int i = 0;

    for (Object obj : values) {
        if (obj != null) {
            try {
                if (obj.getClass() == Character.class || obj.getClass() == char.class) {
                    arr[i] = (char) obj;

                } else {
                    String str = StringUtil.unquote(obj.toString(), isEscapeHtml());
                    arr[i] = str.charAt(0);
                }
                i++;
            } catch (Exception ex) {
            }
        }
    }

    if (i == size) {
        return arr;
    }
    return Arrays.copyOfRange(arr, 0, i);
}

From source file:ca.oson.json.Oson.java

private float[] json2ArrayFloat(FieldData objectDTO) {
    if (objectDTO.valueToProcess == null) {
        return null;
    }/*  w  w w.j a  v  a  2  s . c o m*/

    Function function = objectDTO.getDeserializer();

    Object returnedValue = objectDTO.valueToProcess;

    if (function != null) {
        try {

            // suppose to return String, but in case not, try to process
            if (function instanceof Json2DataMapperFunction) {
                DataMapper classData = new DataMapper(objectDTO.returnType, objectDTO.valueToProcess,
                        objectDTO.classMapper, objectDTO.level, getPrettyIndentation());
                returnedValue = ((Json2DataMapperFunction) function).apply(classData);

            } else if (function instanceof Json2FieldDataFunction) {
                Json2FieldDataFunction f = (Json2FieldDataFunction) function;
                FieldData fieldData = objectDTO.clone();

                returnedValue = f.apply(fieldData);

            } else if (function instanceof Json2ArrayFunction) {
                returnedValue = ((Json2ArrayFunction) function).apply(objectDTO.valueToProcess);

            } else {
                returnedValue = function.apply(objectDTO.valueToProcess);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    if (returnedValue == null) {
        return null;

    } else if (returnedValue.getClass().isArray()) {
        if (returnedValue.getClass() == float[].class) {
            return (float[]) returnedValue;
        }

        int size = Array.getLength(returnedValue);
        float[] arr = new float[size];
        int i = 0, j = 0;
        while (j < size) {
            try {
                arr[i] = (float) NumberUtil.getNumber(Array.get(returnedValue, j), float.class);
                i++;
            } catch (Exception ex) {
            }
            j++;
        }

        if (i == size) {
            return arr;
        }
        return Arrays.copyOfRange(arr, 0, i);

    } else if (!Collection.class.isAssignableFrom(returnedValue.getClass())) {
        return null;
    }

    Collection values = (Collection) returnedValue;

    int size = values.size();
    float[] arr = new float[size];
    int i = 0;

    for (Object value : values) {
        if (value != null) {
            try {
                arr[i] = (float) NumberUtil.getNumber(value, float.class);
                i++;
            } catch (Exception ex) {
            }
        }
    }

    if (i == size) {
        return arr;
    }
    return Arrays.copyOfRange(arr, 0, i);
}

From source file:ca.oson.json.Oson.java

private double[] json2ArrayDouble(FieldData objectDTO) {
    if (objectDTO.valueToProcess == null) {
        return null;
    }/*from w w  w .  j av a 2 s  .  c om*/

    Function function = objectDTO.getDeserializer();

    Object returnedValue = objectDTO.valueToProcess;

    if (function != null) {
        try {

            // suppose to return String, but in case not, try to process
            if (function instanceof Json2DataMapperFunction) {
                DataMapper classData = new DataMapper(objectDTO.returnType, objectDTO.valueToProcess,
                        objectDTO.classMapper, objectDTO.level, getPrettyIndentation());
                returnedValue = ((Json2DataMapperFunction) function).apply(classData);

            } else if (function instanceof Json2FieldDataFunction) {
                Json2FieldDataFunction f = (Json2FieldDataFunction) function;
                FieldData fieldData = objectDTO.clone();

                returnedValue = f.apply(fieldData);

            } else if (function instanceof Json2ArrayFunction) {
                returnedValue = ((Json2ArrayFunction) function).apply(objectDTO.valueToProcess);

            } else {
                returnedValue = function.apply(objectDTO.valueToProcess);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    if (returnedValue == null) {
        return null;

    } else if (returnedValue.getClass().isArray()) {
        if (returnedValue.getClass() == double[].class) {
            return (double[]) returnedValue;
        }

        int size = Array.getLength(returnedValue);
        double[] arr = new double[size];
        int i = 0, j = 0;
        while (j < size) {
            try {
                arr[i] = (double) NumberUtil.getNumber(Array.get(returnedValue, j), double.class);
                i++;
            } catch (Exception ex) {
            }
            j++;
        }

        if (i == size) {
            return arr;
        }
        return Arrays.copyOfRange(arr, 0, i);

    } else if (!Collection.class.isAssignableFrom(returnedValue.getClass())) {
        return null;
    }

    Collection values = (Collection) returnedValue;

    int size = values.size();
    double[] arr = new double[size];
    int i = 0;

    for (Object value : values) {
        if (value != null) {
            try {
                arr[i] = (double) NumberUtil.getNumber(value, double.class);
                i++;
            } catch (Exception ex) {
            }
        }
    }

    if (i == size) {
        return arr;
    }
    return Arrays.copyOfRange(arr, 0, i);
}

From source file:ca.oson.json.Oson.java

private long[] json2ArrayLong(FieldData objectDTO) {
    if (objectDTO.valueToProcess == null) {
        return null;
    }/*from  w w w  .j a va  2 s  . c om*/

    Function function = objectDTO.getDeserializer();

    Object returnedValue = objectDTO.valueToProcess;

    if (function != null) {
        try {

            // suppose to return String, but in case not, try to process
            if (function instanceof Json2DataMapperFunction) {
                DataMapper classData = new DataMapper(objectDTO.returnType, objectDTO.valueToProcess,
                        objectDTO.classMapper, objectDTO.level, getPrettyIndentation());
                returnedValue = ((Json2DataMapperFunction) function).apply(classData);

            } else if (function instanceof Json2FieldDataFunction) {
                Json2FieldDataFunction f = (Json2FieldDataFunction) function;
                FieldData fieldData = objectDTO.clone();

                returnedValue = f.apply(fieldData);

            } else if (function instanceof Json2ArrayFunction) {
                returnedValue = ((Json2ArrayFunction) function).apply(objectDTO.valueToProcess);

            } else {
                returnedValue = function.apply(objectDTO.valueToProcess);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    if (returnedValue == null) {
        return null;

    } else if (returnedValue.getClass().isArray()) {
        if (returnedValue.getClass() == long[].class) {
            return (long[]) returnedValue;
        }

        int size = Array.getLength(returnedValue);
        long[] arr = new long[size];
        int i = 0, j = 0;
        while (j < size) {
            try {
                arr[i] = (long) NumberUtil.getNumber(Array.get(returnedValue, j), long.class);
                i++;
            } catch (Exception ex) {
            }
            j++;
        }

        if (i == size) {
            return arr;
        }
        return Arrays.copyOfRange(arr, 0, i);

    } else if (!Collection.class.isAssignableFrom(returnedValue.getClass())) {
        return null;
    }

    Collection values = (Collection) returnedValue;

    int size = values.size();
    long[] arr = new long[size];
    int i = 0;

    for (Object value : values) {
        if (value != null) {
            try {
                arr[i] = (long) NumberUtil.getNumber(value, long.class);
                i++;
            } catch (Exception ex) {
            }
        }
    }

    if (i == size) {
        return arr;
    }
    return Arrays.copyOfRange(arr, 0, i);
}

From source file:ca.oson.json.Oson.java

private short[] json2ArrayShort(FieldData objectDTO) {
    if (objectDTO.valueToProcess == null) {
        return null;
    }//w w  w.j av  a  2s  .c  o m

    Function function = objectDTO.getDeserializer();

    Object returnedValue = objectDTO.valueToProcess;

    if (function != null) {
        try {

            // suppose to return String, but in case not, try to process
            if (function instanceof Json2DataMapperFunction) {
                DataMapper classData = new DataMapper(objectDTO.returnType, objectDTO.valueToProcess,
                        objectDTO.classMapper, objectDTO.level, getPrettyIndentation());
                returnedValue = ((Json2DataMapperFunction) function).apply(classData);

            } else if (function instanceof Json2FieldDataFunction) {
                Json2FieldDataFunction f = (Json2FieldDataFunction) function;
                FieldData fieldData = objectDTO.clone();

                returnedValue = f.apply(fieldData);

            } else if (function instanceof Json2ArrayFunction) {
                returnedValue = ((Json2ArrayFunction) function).apply(objectDTO.valueToProcess);

            } else {
                returnedValue = function.apply(objectDTO.valueToProcess);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    if (returnedValue == null) {
        return null;

    } else if (returnedValue.getClass().isArray()) {
        if (returnedValue.getClass() == short[].class) {
            return (short[]) returnedValue;
        }

        int size = Array.getLength(returnedValue);
        short[] arr = new short[size];
        int i = 0, j = 0;
        while (j < size) {
            try {
                arr[i] = (short) NumberUtil.getNumber(Array.get(returnedValue, j), short.class);
                i++;
            } catch (Exception ex) {
            }
            j++;
        }

        if (i == size) {
            return arr;
        }
        return Arrays.copyOfRange(arr, 0, i);

    } else if (!Collection.class.isAssignableFrom(returnedValue.getClass())) {
        return null;
    }

    Collection values = (Collection) returnedValue;

    int size = values.size();
    short[] arr = new short[size];
    int i = 0;

    for (Object value : values) {
        if (value != null) {
            try {
                arr[i] = (short) NumberUtil.getNumber(value, short.class);
                i++;
            } catch (Exception ex) {
            }
        }
    }

    if (i == size) {
        return arr;
    }
    return Arrays.copyOfRange(arr, 0, i);
}

From source file:ca.oson.json.Oson.java

private boolean[] json2ArrayBoolean(FieldData objectDTO) {
    if (objectDTO.valueToProcess == null) {
        return null;
    }/*  w  w w  .  ja  va 2  s. c om*/

    Function function = objectDTO.getDeserializer();

    Object returnedValue = objectDTO.valueToProcess;

    if (function != null) {
        try {

            // suppose to return String, but in case not, try to process
            if (function instanceof Json2DataMapperFunction) {
                DataMapper classData = new DataMapper(objectDTO.returnType, objectDTO.valueToProcess,
                        objectDTO.classMapper, objectDTO.level, getPrettyIndentation());
                returnedValue = ((Json2DataMapperFunction) function).apply(classData);

            } else if (function instanceof Json2FieldDataFunction) {
                Json2FieldDataFunction f = (Json2FieldDataFunction) function;
                FieldData fieldData = objectDTO.clone();

                returnedValue = f.apply(fieldData);

            } else if (function instanceof Json2ArrayFunction) {
                returnedValue = ((Json2ArrayFunction) function).apply(objectDTO.valueToProcess);

            } else {
                returnedValue = function.apply(objectDTO.valueToProcess);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    if (returnedValue == null) {
        return null;

    } else if (returnedValue.getClass().isArray()) {
        if (returnedValue.getClass() == boolean[].class) {
            return (boolean[]) returnedValue;
        }

        int size = Array.getLength(returnedValue);
        boolean[] arr = new boolean[size];
        int i = 0, j = 0;
        while (j < size) {
            try {
                arr[i] = BooleanUtil.object2Boolean(Array.get(returnedValue, j));
                i++;
            } catch (Exception ex) {
            }
            j++;
        }

        if (i == size) {
            return arr;
        }
        return Arrays.copyOfRange(arr, 0, i);

    } else if (!Collection.class.isAssignableFrom(returnedValue.getClass())) {
        return null;
    }

    Collection values = (Collection) returnedValue;

    int size = values.size();
    boolean[] arr = new boolean[size];
    int i = 0;

    for (Object value : values) {
        if (value != null) {
            try {
                arr[i] = BooleanUtil.object2Boolean(value);
                i++;
            } catch (Exception ex) {
            }
        }
    }

    if (i == size) {
        return arr;
    }
    return Arrays.copyOfRange(arr, 0, i);
}

From source file:ca.oson.json.Oson.java

private <E> String array2Json(FieldData objectDTO) {
    Object value = objectDTO.valueToProcess;
    Class<?> returnType = objectDTO.returnType;

    int size = 0;
    if (value != null && (size = Array.getLength(value)) > 0) {
        Function function = objectDTO.getSerializer();
        String valueToReturn = null;

        if (function != null) {
            try {

                // suppose to return String, but in case not, try to process
                if (function instanceof DataMapper2JsonFunction) {
                    DataMapper classData = new DataMapper(returnType, value, objectDTO.classMapper,
                            objectDTO.level, getPrettyIndentation());
                    return ((DataMapper2JsonFunction) function).apply(classData);

                } else if (function instanceof Array2JsonFunction) {
                    return ((Array2JsonFunction) function).apply((E[]) value);

                } else {

                    Object returnedValue = null;
                    if (function instanceof FieldData2JsonFunction) {
                        FieldData2JsonFunction f = (FieldData2JsonFunction) function;
                        FieldData fieldData = objectDTO.clone();
                        returnedValue = f.apply(fieldData);
                    } else {
                        returnedValue = function.apply(value);
                    }// ww  w. ja  v a  2s  .c o  m

                    if (returnedValue instanceof Optional) {
                        returnedValue = ObjectUtil.unwrap(returnedValue);
                    }

                    if (returnedValue == null) {
                        return null;

                    } else if (Array.class.isAssignableFrom(returnedValue.getClass())) {
                        // keep on processing
                        value = returnedValue;
                        size = Array.getLength(value);

                    } else {
                        objectDTO.valueToProcess = returnedValue;
                        return object2String(objectDTO);
                    }
                }

            } catch (Exception ex) {
            }
        }

        String repeated = getPrettyIndentationln(objectDTO.level);
        objectDTO.incrLevel();
        String repeatedItem = getPrettyIndentationln(objectDTO.level);
        Class ctype = objectDTO.getComponentType(getJsonClassType());

        List<String> list = new ArrayList<>();

        for (int i = 0; i < size; i++) {
            Object componentValue = Array.get(value, i);
            String str = null;
            if (componentValue != null) {
                FieldData newFieldData = new FieldData(componentValue, componentValue.getClass(),
                        objectDTO.json2Java, objectDTO.level, objectDTO.set);
                newFieldData.returnType = guessComponentType(newFieldData);
                newFieldData.fieldMapper = objectDTO.fieldMapper;
                str = object2Json(newFieldData);
            }

            if (str == null
                    && ((ctype != null && ctype.isPrimitive()) || getDefaultType() == JSON_INCLUDE.DEFAULT)) {
                str = getDefaultValue(ctype).toString();
            }

            list.add(str);
        }

        if (objectDTO.classMapper.orderArrayAndList) {
            Collections.sort(list);
        }

        StringBuilder sbuilder = new StringBuilder();
        for (String str : list) {
            sbuilder.append(repeatedItem + str + ",");
        }

        String str = sbuilder.toString();
        size = str.length();
        if (size > 0) {
            return "[" + str.substring(0, size - 1) + repeated + "]";
        }
    }

    return array2JsonDefault(objectDTO);
}

From source file:com.clark.func.Functions.java

/**
 * Clone an object.//from  w  w w  .ja  v a 2s .  c  o  m
 * 
 * @param <T>
 *            the type of the object
 * @param o
 *            the object to clone
 * @return the clone if the object implements {@link Cloneable} otherwise
 *         <code>null</code>
 * @throws CloneFailedException
 *             if the object is cloneable and the clone operation fails
 * @since 3.0
 */
public static <T> T objectClone(final T o) {
    if (o instanceof Cloneable) {
        final Object result;
        if (o.getClass().isArray()) {
            final Class<?> componentType = o.getClass().getComponentType();
            if (!componentType.isPrimitive()) {
                result = ((Object[]) o).clone();
            } else {
                int length = Array.getLength(o);
                result = Array.newInstance(componentType, length);
                while (length-- > 0) {
                    Array.set(result, length, Array.get(o, length));
                }
            }
        } else {
            try {
                final Method clone = o.getClass().getMethod("clone");
                result = clone.invoke(o);
            } catch (final NoSuchMethodException e) {
                throw new CloneFailedException(
                        "Cloneable type " + o.getClass().getName() + " has no clone method", e);
            } catch (final IllegalAccessException e) {
                throw new CloneFailedException("Cannot clone Cloneable type " + o.getClass().getName(), e);
            } catch (final InvocationTargetException e) {
                throw new CloneFailedException("Exception cloning Cloneable type " + o.getClass().getName(),
                        e.getCause());
            }
        }
        @SuppressWarnings("unchecked")
        final T checked = (T) result;
        return checked;
    }

    return null;
}