1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache license, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the license for the specific language governing permissions and
15 * limitations under the license.
16 */
17 package org.apache.logging.log4j.core.config.plugins.validation.constraints;
18
19 import java.lang.annotation.Documented;
20 import java.lang.annotation.ElementType;
21 import java.lang.annotation.Retention;
22 import java.lang.annotation.RetentionPolicy;
23 import java.lang.annotation.Target;
24
25 import org.apache.logging.log4j.core.config.plugins.validation.Constraint;
26 import org.apache.logging.log4j.core.config.plugins.validation.validators.ValidPortValidator;
27
28 /**
29 * Indicates that a plugin attribute must be a valid port number. A valid port number is an integer between 0 and
30 * 65535.
31 *
32 * @since 2.8
33 */
34 @Documented
35 @Retention(RetentionPolicy.RUNTIME)
36 @Target({ElementType.FIELD, ElementType.PARAMETER})
37 @Constraint(ValidPortValidator.class)
38 public @interface ValidPort {
39
40 /**
41 * The message to be logged if this constraint is violated. This should normally be overridden.
42 */
43 String message() default "The port number is invalid";
44 }