Example usage for java.lang Class getComponentType

Introduction

In this page you can find the example usage for java.lang Class getComponentType.

Prototype

public Class<?> getComponentType()

Source Link

Document

Returns the Class representing the component type of an array.

Usage

From source file:CopyOnWriteArrayList.java

private static Object[] copyOf(Object[] original, int newLength, Class newType) {
    Object[] copy = (Object[]) java.lang.reflect.Array.newInstance(newType.getComponentType(), newLength);
    System.arraycopy(original, 0, copy, 0, Math.min(original.length, newLength));
    return copy;//from   w  w  w  . j a  va2  s . co m
}

From source file:com.dianping.resource.io.util.ClassUtils.java

/**
 * Check if the given class represents an array of primitives,
 * i.e. boolean, byte, char, short, int, long, float, or double.
 * @param clazz the class to check//ww  w  .  ja v  a2  s  .c  o  m
 * @return whether the given class is a primitive array class
 */
public static boolean isPrimitiveArray(Class<?> clazz) {
    Assert.notNull(clazz, "Class must not be null");
    return (clazz.isArray() && clazz.getComponentType().isPrimitive());
}

From source file:com.glaf.core.util.ReflectUtils.java

/**
 * get class desc. boolean[].class => "[Z" Object.class =>
 * "Ljava/lang/Object;"/*from  w  w  w  . ja v a 2s. co  m*/
 * 
 * @param c
 *            class.
 * @return desc.
 * @throws NotFoundException
 */
public static String getDesc(Class<?> c) {
    StringBuilder ret = new StringBuilder();

    while (c.isArray()) {
        ret.append('[');
        c = c.getComponentType();
    }

    if (c.isPrimitive()) {
        String t = c.getName();
        if ("void".equals(t))
            ret.append(JVM_VOID);
        else if ("boolean".equals(t))
            ret.append(JVM_BOOLEAN);
        else if ("byte".equals(t))
            ret.append(JVM_BYTE);
        else if ("char".equals(t))
            ret.append(JVM_CHAR);
        else if ("double".equals(t))
            ret.append(JVM_DOUBLE);
        else if ("float".equals(t))
            ret.append(JVM_FLOAT);
        else if ("int".equals(t))
            ret.append(JVM_INT);
        else if ("long".equals(t))
            ret.append(JVM_LONG);
        else if ("short".equals(t))
            ret.append(JVM_SHORT);
    } else {
        ret.append('L');
        ret.append(c.getName().replace('.', '/'));
        ret.append(';');
    }
    return ret.toString();
}

From source file:com.freetmp.common.util.ClassUtils.java

public static boolean isPrimitiveArray(Class<?> clazz) {
    Assert.notNull(clazz, "Class must not be null");
    return (clazz.isArray() && clazz.getComponentType().isPrimitive());
}

From source file:com.glaf.core.util.GetterUtils.java

public static String[] getStringValues(Object value, String[] defaultValue) {

    if (value == null) {
        return defaultValue;
    }/*from   w  ww  .  j a  va2  s  . co  m*/

    Class<?> clazz = value.getClass();

    if (clazz.isArray()) {
        Class<?> componentType = clazz.getComponentType();

        if (String.class.isAssignableFrom(componentType)) {
            return getStringValues((String[]) value, defaultValue);
        }
    }

    return defaultValue;
}

From source file:com.glaf.core.util.ReflectUtils.java

/**
 * get name. java.lang.Object[][].class => "java.lang.Object[][]"
 * //from   w  w w . j a va  2  s. c  om
 * @param c
 *            class.
 * @return name.
 */
public static String getName(Class<?> c) {
    if (c.isArray()) {
        StringBuilder sb = new StringBuilder();
        do {
            sb.append("[]");
            c = c.getComponentType();
        } while (c.isArray());

        return c.getName() + sb.toString();
    }
    return c.getName();
}

From source file:com.glaf.core.util.GetterUtils.java

public static float[] getFloatValues(Object value, float[] defaultValue) {
    if (value == null) {
        return defaultValue;
    }/*from   w  ww.j  a v  a 2  s.c om*/

    Class<?> clazz = value.getClass();

    if (clazz.isArray()) {
        Class<?> componentType = clazz.getComponentType();

        if (String.class.isAssignableFrom(componentType)) {
            return getFloatValues((String[]) value, defaultValue);
        } else if (Float.class.isAssignableFrom(componentType)) {
            return (float[]) value;
        }
    }

    return defaultValue;
}

From source file:com.glaf.core.util.GetterUtils.java

public static int[] getIntegerValues(Object value, int[] defaultValue) {
    if (value == null) {
        return defaultValue;
    }/* w ww. j a  va  2s  .c o  m*/

    Class<?> clazz = value.getClass();

    if (clazz.isArray()) {
        Class<?> componentType = clazz.getComponentType();

        if (String.class.isAssignableFrom(componentType)) {
            return getIntegerValues((String[]) value, defaultValue);
        } else if (Integer.class.isAssignableFrom(componentType)) {
            return (int[]) value;
        }
    }

    return defaultValue;
}

From source file:com.glaf.core.util.GetterUtils.java

public static short[] getShortValues(Object value, short[] defaultValue) {
    if (value == null) {
        return defaultValue;
    }/* ww  w  .j a  v a 2s .  c  o m*/

    Class<?> clazz = value.getClass();

    if (clazz.isArray()) {
        Class<?> componentType = clazz.getComponentType();

        if (String.class.isAssignableFrom(componentType)) {
            return getShortValues((String[]) value, defaultValue);
        } else if (Short.class.isAssignableFrom(componentType)) {
            return (short[]) value;
        }
    }

    return defaultValue;
}

From source file:info.novatec.testit.livingdoc.converter.ArrayConverter.java

@Override
public Object parse(String value, Class<?> type) {
    String text = removeSquareBrackets(value);

    List<Object> values = new ArrayList<Object>();
    if (StringUtils.isBlank(text)) {
        return CollectionUtil.toArray(values, type.getComponentType());
    }/*  w w w  .j  av a2 s . com*/

    String[] parts = text.split(separators);
    for (String part : parts) {
        values.add(TypeConversion.parse(part.trim(), type.getComponentType()));
    }

    return CollectionUtil.toArray(values, type.getComponentType());
}