package com.ctrip.framework.apollo.common.utils;
import com.ctrip.framework.apollo.common.exception.BadRequestException;
import com.ctrip.framework.apollo.core.utils.StringUtils;
public class RequestPrecondition {
private static String CONTAIN_EMPTY_ARGUMENT = "request payload should not be contain empty.";
private static String ILLEGAL_MODEL = "request model is invalid";
private static String ILLEGAL_NUMBER = "number should be positive";
public static void checkArgumentsNotEmpty(String... args) {
checkArguments(!StringUtils.isContainEmpty(args), CONTAIN_EMPTY_ARGUMENT);
}
public static void checkModel(boolean valid){
checkArguments(valid, ILLEGAL_MODEL);
}
public static void checkArguments(boolean expression, Object errorMessage) {
if (!expression) {
throw new BadRequestException(String.valueOf(errorMessage));
}
}
public static void checkNumberPositive(int... args){
for (int num: args){
if (num <= 0){
throw new BadRequestException(ILLEGAL_NUMBER);
}
}
}
public static void checkNumberPositive(long... args){
for (long num: args){
if (num <= 0){
throw new BadRequestException(ILLEGAL_NUMBER);
}
}
}
public static void checkNumberNotNegative(int... args){
for (int num: args){
if (num < 0){
throw new BadRequestException(ILLEGAL_NUMBER);
}
}
}
}