/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.logging.log4j.core.config.plugins.validation.constraints;
import org.apache.logging.log4j.core.config.plugins.validation.Constraint;
import org.apache.logging.log4j.core.config.plugins.validation.validators.ValidHostValidator;
import java.lang.annotation.*;
import java.net.InetAddress;
/**
* Indicates that a plugin attribute must be a valid host. This relies on the same validation rules as
* {@link InetAddress#getByName(String)}.
*
* @since 2.8
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.PARAMETER})
@Constraint(ValidHostValidator.class)
public @interface ValidHost {
/**
* The message to be logged if this constraint is violated. This should normally be overridden.
*/
String message() default "The hostname is invalid";
}