me.wuwenbin.lang.base.Validate Maven / Gradle / Ivy
package me.wuwenbin.lang.base;
import java.lang.reflect.Array;
import java.util.Collection;
import java.util.Date;
import java.util.Map;
/**
* ClassName: Validate
* Description: 判断对象、字符串、集合是否为空、不为空
* Version: Ver 1.0
*
* author: Wuwenbin
* date: 2016年8月31日
* time: 下午2:08:22
*/
public final class Validate {
/**
* 判断数组是否为空
*
* @param array
* @return boolean
* @author chenssy
* @date Dec 23, 2013
*/
@SuppressWarnings("unused")
private boolean isEmptyArray(T[] array) {
if (array == null || array.length == 0) {
return true;
} else {
return false;
}
}
/**
* 判断数组是否不为空
*
* @param array
* @return boolean
* @author chenssy
* @date Dec 23, 2013
*/
public boolean isNotEmptyArray(T[] array) {
if (array != null && array.length > 0) {
return true;
} else {
return false;
}
}
/**
* 判断字符串是否为空
*
* @param string
* @return boolean
* @author chenssy
* @date Dec 23, 2013
*/
public boolean isEmptyString(String string) {
if (string == null || string.length() == 0) {
return true;
} else {
return false;
}
}
/**
* 判断字符串是否不为空
*
* @param string
* @return boolean
* @author chenssy
* @date Dec 23, 2013
*/
public boolean isNotEmptyString(String string) {
if (string != null && string.length() > 0) {
return true;
} else {
return false;
}
}
/**
* 判断集合是否为空
*
* @param collection
* @return boolean
* @author chenssy
* @date Dec 26, 2013
*/
public boolean isEmptyCollection(Collection collection) {
if (collection == null || collection.isEmpty()) {
return true;
} else {
return false;
}
}
/**
* 判断集合是否不为空
*
* @param collection
* @return boolean
* @author chenssy
* @date Dec 26, 2013
*/
public boolean isNotEmptyCollection(Collection collection) {
if (collection != null && !collection.isEmpty()) {
return true;
} else {
return false;
}
}
/**
* 判断map集合是否不为空
*
* @param map
* @return boolean
* @author chenssy
* @date Dec 26, 2013
*/
@SuppressWarnings("rawtypes")
public boolean isNotEmptyMap(Map map) {
if (map != null && !map.isEmpty()) {
return true;
} else {
return false;
}
}
/**
* 判断map集合是否为空
*
* @param map
* @return boolean
* @author ming.chen
* @date Dec 26, 2013
*/
@SuppressWarnings("rawtypes")
public boolean isEmptyMap(Map map) {
if (map == null || map.isEmpty()) {
return true;
} else {
return false;
}
}
/**
* 检验对象是否为空,String 中只有空格在对象中也算空.
*
* @param object
* @return 为空返回true, 否则false.
*/
@SuppressWarnings("rawtypes")
public boolean isEmpty(Object object) {
if (null == object)
return true;
else if (object instanceof String)
return "".equals(object.toString().trim());
else if (object instanceof Iterable)
return !((Iterable) object).iterator().hasNext();
else if (object.getClass().isArray())
return Array.getLength(object) == 0;
else if (object instanceof Map)
return ((Map) object).size() == 0;
else if (Number.class.isAssignableFrom(object.getClass()))
return false;
else if (Date.class.isAssignableFrom(object.getClass()))
return false;
else
return false;
}
}