org.noear.solon.validation.annotation.NullValidator Maven / Gradle / Ivy
/*
* Copyright 2017-2024 noear.org and authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.noear.solon.validation.annotation;
import org.noear.solon.core.handle.Context;
import org.noear.solon.core.handle.Result;
import org.noear.solon.validation.Validator;
/**
*
* @author noear
* @since 1.0
* */
public class NullValidator implements Validator {
public static final NullValidator instance = new NullValidator();
@Override
public String message(Null anno) {
return anno.message();
}
@Override
public Class[] groups(Null anno) {
return anno.groups();
}
@Override
public Result validateOfValue(Null anno, Object val, StringBuilder tmp) {
if (val != null) {
return Result.failure();
} else {
return Result.succeed();
}
}
@Override
public Result validateOfContext(Context ctx, Null anno, String name, StringBuilder tmp) {
if (name == null) {
//来自函数
for (String key : anno.value()) {
if (ctx.param(key) != null) {
tmp.append(',').append(key);
}
}
} else {
//来自参数
if (ctx.param(name) != null) {
tmp.append(',').append(name);
}
}
if (tmp.length() > 1) {
return Result.failure(tmp.substring(1));
} else {
return Result.succeed();
}
}
}