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:org.cloudata.core.common.io.CObjectWritable.java

private static void writeColumnValue(DataOutput out, Object instance, Class declaredClass, CloudataConf conf,
        int length) throws IOException {
    int shortByteSize = CWritableUtils.getShortByteSize();
    int intByteSize = CWritableUtils.getIntByteSize();

    int totalByteSize = 0;

    long startTime = System.currentTimeMillis();
    for (int i = 0; i < length; i++) {
        ColumnValue columnValue = (ColumnValue) Array.get(instance, i);
        totalByteSize += shortByteSize;/*from  ww  w .j a v a  2 s  .com*/
        totalByteSize += columnValue.size();
    }
    //    long endTime = System.currentTimeMillis();
    //LOG.fatal("writeColumnValue1:length=" + length + ",bytes=" + totalByteSize + ",time=" + (endTime - startTime));

    out.writeInt(totalByteSize);

    //    startTime = System.currentTimeMillis();
    for (int i = 0; i < length; i++) {
        writeObject(out, Array.get(instance, i), declaredClass.getComponentType(), conf, true);
    }
    long endTime = System.currentTimeMillis();
    //LOG.fatal("writeColumnValue2:time=" + (endTime - startTime));
}

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

private static String getQualifiedNameForArray(Class<?> clazz) {
    StringBuilder result = new StringBuilder();
    while (clazz.isArray()) {
        clazz = clazz.getComponentType();
        result.append(ClassUtils.ARRAY_SUFFIX);
    }//from   w w w.j a va  2s . co m
    result.insert(0, clazz.getName());
    return result.toString();
}

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

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

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From source file:jef.tools.ArrayUtils.java

/**
 * ??//w w w .j  ava  2 s  .co  m
 * java.util.Arrays??????9???
 * 
 * @param a1
 *            Object
 * @param a2
 *            Object,
 * @return
 * @see java.util.Arrays#equals(boolean[], boolean[])
 * @see java.util.Arrays#equals(byte[], byte[])
 * @see java.util.Arrays#equals(char[], char[])
 * @see java.util.Arrays#equals(double[], double[])
 * @see java.util.Arrays#equals(float[], float[])
 * @see java.util.Arrays#equals(int[], int[])
 * @see java.util.Arrays#equals(long[], long[])
 * @see java.util.Arrays#equals(short[], short[])
 * @see java.util.Arrays#equals(Object[], Object[])
 * @throws IllegalArgumentException
 *             ?
 */
public static boolean equals(Object a1, Object a2) {
    if (a1 == a2)
        return true;
    if (a1 == null || a2 == null)
        return false;
    Class<?> clz1 = a1.getClass();
    Class<?> clz2 = a2.getClass();
    if (!clz1.isArray() || !clz2.isArray()) {
        throw new IllegalArgumentException("must comapre between two Array.");
    }
    clz1 = clz1.getComponentType();
    clz2 = clz2.getComponentType();
    if (clz1.isPrimitive() != clz2.isPrimitive()) {
        return false;
    }
    if (clz1 == int.class) {
        return Arrays.equals((int[]) a1, (int[]) a2);
    } else if (clz1 == short.class) {
        return Arrays.equals((short[]) a1, (short[]) a2);
    } else if (clz1 == long.class) {
        return Arrays.equals((long[]) a1, (long[]) a2);
    } else if (clz1 == float.class) {
        return Arrays.equals((float[]) a1, (float[]) a2);
    } else if (clz1 == double.class) {
        return Arrays.equals((double[]) a1, (double[]) a2);
    } else if (clz1 == boolean.class) {
        return Arrays.equals((boolean[]) a1, (boolean[]) a2);
    } else if (clz1 == byte.class) {
        return Arrays.equals((byte[]) a1, (byte[]) a2);
    } else if (clz1 == char.class) {
        return Arrays.equals((char[]) a1, (char[]) a2);
    } else {
        return Arrays.equals((Object[]) a1, (Object[]) a2);
    }
}

---

From source file:egovframework.rte.itl.integration.type.ListType.java

@Override
public boolean isAssignableFrom(Class<?> clazz) {
    if (super.isAssignableFrom(clazz)) {
        return true;
    }//  w  w w.j ava 2 s. co m
    if (clazz.isArray()) {
        return elementType.isAssignableFrom(clazz.getComponentType());
    }
    return false;
}

---

From source file:com.metaparadigm.jsonrpc.ArraySerializer.java

public Object unmarshall(SerializerState state, Class clazz, Object o) throws UnmarshallException {
    JSONArray jso = (JSONArray) o;/*from w  w  w .ja v a 2 s.co  m*/
    Class cc = clazz.getComponentType();
    int i = 0;
    try {
        if (clazz == int[].class) {
            int arr[] = new int[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).intValue();
            return arr;
        } else if (clazz == byte[].class) {
            byte arr[] = new byte[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).byteValue();
            return arr;
        } else if (clazz == short[].class) {
            short arr[] = new short[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).shortValue();
            return arr;
        } else if (clazz == long[].class) {
            long arr[] = new long[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).longValue();
            return arr;
        } else if (clazz == float[].class) {
            float arr[] = new float[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).floatValue();
            return arr;
        } else if (clazz == double[].class) {
            double arr[] = new double[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((Number) ser.unmarshall(state, cc, jso.get(i))).doubleValue();
            return arr;
        } else if (clazz == char[].class) {
            char arr[] = new char[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((String) ser.unmarshall(state, cc, jso.get(i))).charAt(0);
            return arr;
        } else if (clazz == boolean[].class) {
            boolean arr[] = new boolean[jso.length()];
            for (; i < jso.length(); i++)
                arr[i] = ((Boolean) ser.unmarshall(state, cc, jso.get(i))).booleanValue();
            return arr;
        } else {
            Object arr[] = (Object[]) Array.newInstance(clazz.getComponentType(), jso.length());
            for (; i < jso.length(); i++)
                arr[i] = ser.unmarshall(state, cc, jso.get(i));
            return arr;
        }
    } catch (UnmarshallException e) {
        throw new UnmarshallException("element " + i + " " + e.getMessage());
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
    }
}

---

From source file:org.crazydog.util.spring.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//from   www.j ava  2 s . co  m
 * @return whether the given class is a primitive array class
 */
public static boolean isPrimitiveArray(Class<?> clazz) {
    org.springframework.util.Assert.notNull(clazz, "Class must not be null");
    return (clazz.isArray() && clazz.getComponentType().isPrimitive());
}

---

From source file:com.bstek.dorado.data.type.manager.DefaultDataTypeManager.java

/**
 * ????DataType???Class<br>/*from   w  ww  . jav a 2s .c  o  m*/
 * ???DataTypeDefinitionManager??
 * 
 * @param type
 *            Class
 * @throws Exception
 */
@Override
protected DataTypeDefinition getDataTypeDefinition(Type type) throws Exception {
    DataTypeDefinition dataType = null;
    if (type instanceof Class<?> && ((Class<?>) type).isArray()) {
        Class<?> cl = (Class<?>) type;
        DataTypeDefinition componentDataType = getDataTypeDefinitionByType(cl.getComponentType());
        String name = ARRAY + '[' + componentDataType.getName() + ']';
        dataType = getDataTypeDefinitionManager().getDefinition(name);
    } else if (type instanceof ParameterizedType) {
        Class<?> elementType = null;
        Type[] actualTypeArguments = ((ParameterizedType) type).getActualTypeArguments();
        if (actualTypeArguments.length > 0) {
            elementType = (Class<?>) actualTypeArguments[0];
        }
        if (elementType != null) {
            DataTypeDefinition elementDataType = getDataTypeDefinitionByType(elementType);
            if (elementDataType != null) {
                String name = '[' + elementDataType.getName() + ']';
                dataType = getDataTypeDefinitionManager().getDefinition(name);
            }
        }
    }
    if (dataType == null && type instanceof Class<?>) {
        dataType = getDataTypeDefinitionByType((Class<?>) type);
    }
    return dataType;
}

---

From source file:name.ikysil.beanpathdsl.codegen.Context.java

private Class<?> resolveClass(Class<?> clazz) {
    if (clazz.isArray()) {
        return clazz.getComponentType();
    }//  w  w w .  j av  a2 s. com
    return clazz;
}

---

From source file:com.dinstone.ut.faststub.internal.StubMethodInvocation.java

/**
 * {@inheritDoc}//from   ww  w  .j a v a 2  s. c  om
 * 
 */
public Object invoke(Method method, Object[] args) throws Throwable {
    ApplicationContext stubContext = getStubContext(method);
    Object retObj = stubContext.getBean(method.getName());
    // handle exception
    handleException(retObj);

    // handle array object
    Class<?> retType = method.getReturnType();
    if (retType.isArray() && retObj instanceof List<?>) {
        List<?> list = (List<?>) retObj;
        int len = list.size();
        Object arrObj = Array.newInstance(retType.getComponentType(), len);
        for (int i = 0; i < len; i++) {
            Array.set(arrObj, i, list.get(i));
        }
        return arrObj;
    }

    return retObj;
}

---

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