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top.doudou.common.tool.utils.CustomAssert Maven / Gradle / Ivy
package top.doudou.common.tool.utils;
import org.springframework.lang.Nullable;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
import top.doudou.common.tool.exception.ValidateException;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
/**
* @author 傻男人<[email protected] >
* @Date: 2020/5/15 9:36
* @Version: 1.0
* @Description: 断言
*/
public class CustomAssert {
public CustomAssert() {
}
/**
* 断言 为true
* @param expression
* @param message
*/
public static void state(boolean expression, String message) {
if (!expression) {
throw new ValidateException(message);
}
}
/**
* 断言 为true
* @param expression
* @param message
*/
public static void isTrue(boolean expression, String message) {
state(expression,message);
}
/**
* 对象为空
* @param object
* @param message
*/
public static void isNull(@Nullable Object object, String message) {
if (object != null) {
throw new ValidateException(message);
}
}
/**
* 对象不为空
* @param object
* @param message
*/
public static void notNull(@Nullable Object object, String message) {
if (object == null) {
throw new ValidateException(message);
}
}
/**
* 对象有长度
* @param text
* @param message
*/
public static void hasLength(@Nullable String text, String message) {
if (!StringUtils.hasLength(text)) {
throw new ValidateException(message);
}
}
public static void hasText(@Nullable String text, String message) {
if (!StringUtils.hasText(text)) {
throw new ValidateException(message);
}
}
/**
* 不包含后面内容
* @param textToSearch
* @param substring
* @param message
*/
public static void doesNotContain(@Nullable String textToSearch, String substring, String message) {
if (StringUtils.hasLength(textToSearch) && StringUtils.hasLength(substring) && textToSearch.contains(substring)) {
throw new ValidateException(message);
}
}
/**
* 不为空
* @param array
* @param message
*/
public static void notEmpty(@Nullable Object[] array, String message) {
if (ObjectUtils.isEmpty(array)) {
throw new ValidateException(message);
}
}
/**
* 没有空元素
* @param array
* @param message
*/
public static void noNullElements(@Nullable Object[] array, String message) {
if (array != null) {
Object[] var2 = array;
int var3 = array.length;
for(int var4 = 0; var4 < var3; ++var4) {
Object element = var2[var4];
if (element == null) {
throw new ValidateException(message);
}
}
}
}
/**
* 不为空
* @param collection
* @param message
*/
public static void notEmpty(@Nullable Collection collection, String message) {
if (CollectionUtils.isEmpty(collection)) {
throw new ValidateException(message);
}
}
/**
* 不包含空元素
* @param collection
* @param message
*/
public static void noNullElements(@Nullable Collection collection, String message) {
if (collection != null) {
Iterator var2 = collection.iterator();
while(var2.hasNext()) {
Object element = var2.next();
if (element == null) {
throw new ValidateException(message);
}
}
}
}
/**
* 不为空
* @param map
* @param message
*/
public static void notEmpty(@Nullable Map map, String message) {
if (CollectionUtils.isEmpty(map)) {
throw new ValidateException(message);
}
}
public static void isInstanceOf(Class type, @Nullable Object obj, String message) {
notNull(type, (String)"Type to check against must not be null");
if (!type.isInstance(obj)) {
instanceCheckFailed(type, obj, message);
}
}
public static void isInstanceOf(Class type, @Nullable Object obj) {
isInstanceOf(type, obj, "");
}
public static void isAssignable(Class superType, @Nullable Class subType, String message) {
notNull(superType, (String)"Super type to check against must not be null");
if (subType == null || !superType.isAssignableFrom(subType)) {
assignableCheckFailed(superType, subType, message);
}
}
public static void isAssignable(Class superType, Class subType) {
isAssignable(superType, subType, "");
}
private static void instanceCheckFailed(Class type, @Nullable Object obj, @Nullable String msg) {
String className = obj != null ? obj.getClass().getName() : "null";
String result = "";
boolean defaultMessage = true;
if (StringUtils.hasLength(msg)) {
if (endsWithSeparator(msg)) {
result = msg + " ";
} else {
result = messageWithTypeName(msg, className);
defaultMessage = false;
}
}
if (defaultMessage) {
result = result + "Object of class [" + className + "] must be an instance of " + type;
}
throw new IllegalArgumentException(result);
}
private static void assignableCheckFailed(Class superType, @Nullable Class subType, @Nullable String msg) {
String result = "";
boolean defaultMessage = true;
if (StringUtils.hasLength(msg)) {
if (endsWithSeparator(msg)) {
result = msg + " ";
} else {
result = messageWithTypeName(msg, subType);
defaultMessage = false;
}
}
if (defaultMessage) {
result = result + subType + " is not assignable to " + superType;
}
throw new IllegalArgumentException(result);
}
private static boolean endsWithSeparator(String msg) {
return msg.endsWith(":") || msg.endsWith(";") || msg.endsWith(",") || msg.endsWith(".");
}
private static String messageWithTypeName(String msg, @Nullable Object typeName) {
return msg + (msg.endsWith(" ") ? "" : ": ") + typeName;
}
}
