Java SQL Date convert(Class propertyType, Object value, String propertyName)

Description

convert

License

Open Source License

Declaration

public static Object convert(Class<?> propertyType, Object value, String propertyName) 

Method Source Code

//package com.java2s;
/*//ww  w  .  j ava2s . co  m
 * #%L
 * lightlink-core
 * %%
 * Copyright (C) 2015 Vitaliy Shevchuk
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
 * #L%
 */

import java.lang.reflect.Array;
import java.math.BigDecimal;
import java.util.Arrays;
import java.util.Collection;
import java.util.Date;

public class Main {
    public static Object convert(Class<?> propertyType, Object value, String propertyName) {
        if (value == null || propertyType.isAssignableFrom(value.getClass())) {
            return value;
        }

        if ((byte.class.equals(propertyType) || Byte.class.equals(propertyType)) && value.getClass().isArray()) {
            return value;
        } else if (value.getClass().isArray()) {
            Object[] valuesArray = (Object[]) value;
            if (propertyType.isArray()) {
                Object[] newArray = (Object[]) Array.newInstance(propertyType, valuesArray.length);
                for (int i = 0; i < valuesArray.length; i++) {
                    Object v = valuesArray[i];
                    newArray[i] = convert(propertyType.getComponentType(), v, propertyName);
                }
                return newArray;
            } else if (Collection.class.isAssignableFrom(propertyType)) {
                return Arrays.asList(valuesArray);
            }

        } else if (Boolean.class.equals(propertyType) || boolean.class.equals(propertyType)) {
            if (value instanceof Number) {
                return ((Number) value).intValue() != 0;
            } else {
                return !"0".equals(value.toString()) && !"".equals(value.toString());
            }

        } else if (value instanceof BigDecimal) {
            BigDecimal v = (BigDecimal) value;
            if (int.class.equals(propertyType) || Integer.class.equals(propertyType)) {
                return v.intValue();
            }
            if (long.class.equals(propertyType) || Long.class.equals(propertyType)) {
                return v.longValue();
            }
            if (float.class.equals(propertyType) || Float.class.equals(propertyType)) {
                return v.floatValue();
            }
            if (double.class.equals(propertyType) || Double.class.equals(propertyType)) {
                return v.doubleValue();
            }
            if (String.class.equals(propertyType)) {
                return v.toString();
            } else {
                return v.shortValue();
            }

        } else if (java.sql.Date.class.equals(propertyType)) {
            return new java.sql.Date(((Date) value).getTime());
        } else if (value instanceof Date) {
            return new Date(((Date) value).getTime());
        } else if (propertyType.isAssignableFrom(String.class)) {
            return value.toString();
        } else if ((Long.class.equals(propertyType) || long.class.equals(propertyType))
                && value instanceof String) {
            return new Long((String) value);
        } else if ((Integer.class.equals(propertyType) || int.class.equals(propertyType))
                && value instanceof String) {
            return new Integer((String) value);
        } else if ((Double.class.equals(propertyType) || double.class.equals(propertyType))
                && value instanceof String) {
            return new Double((String) value);
        } else if ((Float.class.equals(propertyType) || float.class.equals(propertyType))
                && value instanceof String) {
            return new Float((String) value);
        }
        throw new RuntimeException(
                "Cannot convert for property:" + propertyName + " from:" + value.getClass().getCanonicalName()
                        + " to " + propertyType.getCanonicalName() + " value:" + value);

    }
}

Related

1. calcLastMonth(String begin, String end, String now, GregorianCalendar calendar)
2. calcThisMonth(String begin, String end, String now, GregorianCalendar calendar)
3. canConvert(Class clz)
4. convert(Object o)
5. convertTo(Class clazz, Object obj)
6. convertTo(final Class> clazz, Object obj)
7. getClasses()