001// ***************************************************************************************************************************
002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
003// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
005// * with the License.  You may obtain a copy of the License at                                                              *
006// *                                                                                                                         *
007// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
008// *                                                                                                                         *
009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
011// * specific language governing permissions and limitations under the License.                                              *
012// ***************************************************************************************************************************
013package org.apache.juneau.json.annotation;
014
015import static java.lang.annotation.ElementType.*;
016import static java.lang.annotation.RetentionPolicy.*;
017
018import java.lang.annotation.*;
019
020import org.apache.juneau.annotation.*;
021import org.apache.juneau.json.*;
022import org.apache.juneau.serializer.*;
023
024/**
025 * Annotation for specifying config properties defined in {@link JsonSerializer} and {@link JsonParser}.
026 *
027 * <p>
028 * Used primarily for specifying bean configuration properties on REST classes and methods.
029 */
030@Documented
031@Target({TYPE,METHOD})
032@Retention(RUNTIME)
033@Inherited
034@PropertyStoreApply(JsonConfigApply.class)
035public @interface JsonConfig {
036
037   /**
038    * Optional rank for this config.
039    *
040    * <p>
041    * Can be used to override default ordering and application of config annotations.
042    */
043   int rank() default 0;
044
045   //-------------------------------------------------------------------------------------------------------------------
046   // JsonCommon
047   //-------------------------------------------------------------------------------------------------------------------
048
049   /**
050    * Dynamically applies {@link Json @Json} annotations to specified classes.
051    *
052    * <p>
053    * Provides an alternate approach for applying annotations using {@link Json#on() @Json.on} to specify the names
054    * to apply the annotation to.
055    *
056    * <ul class='seealso'>
057    *    <li class='link'>{@doc DynamicallyAppliedAnnotations}
058    * </ul>
059    */
060   Json[] applyJson() default {};
061
062   //-------------------------------------------------------------------------------------------------------------------
063   // JsonParser
064   //-------------------------------------------------------------------------------------------------------------------
065
066   /**
067    * Configuration property:  Validate end.
068    *
069    * <p>
070    * If <js>"true"</js>, after parsing a POJO from the input, verifies that the remaining input in
071    * the stream consists of only comments or whitespace.
072    *
073    * <ul class='notes'>
074    *    <li>
075    *       Possible values:
076    *       <ul>
077    *          <li><js>"true"</js>
078    *          <li><js>"false"</js> (default)
079    *       </ul>
080    *    <li>
081    *       Supports {@doc DefaultVarResolver} (e.g. <js>"$C{myConfigVar}"</js>).
082    * </ul>
083    *
084    * <ul class='seealso'>
085    *    <li class='jf'>{@link JsonParser#JSON_validateEnd}
086    * </ul>
087    */
088   String validateEnd() default "";
089
090   //-------------------------------------------------------------------------------------------------------------------
091   // JsonSerializer
092   //-------------------------------------------------------------------------------------------------------------------
093
094   /**
095    * Configuration property:  Add <js>"_type"</js> properties when needed.
096    *
097    * <p>
098    * If <js>"true"</js>, then <js>"_type"</js> properties will be added to beans if their type cannot be inferred
099    * through reflection.
100    *
101    * <p>
102    * When present, this value overrides the {@link Serializer#SERIALIZER_addBeanTypes} setting and is
103    * provided to customize the behavior of specific serializers in a {@link SerializerGroup}.
104    *
105    * <ul class='notes'>
106    *    <li>
107    *       Possible values:
108    *       <ul>
109    *          <li><js>"true"</js>
110    *          <li><js>"false"</js> (default)
111    *       </ul>
112    *    <li>
113    *       Supports {@doc DefaultVarResolver} (e.g. <js>"$C{myConfigVar}"</js>).
114    * </ul>
115    *
116    * <ul class='seealso'>
117    *    <li class='jf'>{@link JsonSerializer#JSON_addBeanTypes}
118    * </ul>
119    */
120   String addBeanTypes() default "";
121
122   /**
123    * Configuration property:  Prefix solidus <js>'/'</js> characters with escapes.
124    *
125    * <p>
126    * If <js>"true"</js>, solidus (e.g. slash) characters should be escaped.
127    * The JSON specification allows for either format.
128    * <br>However, if you're embedding JSON in an HTML script tag, this setting prevents confusion when trying to serialize
129    * <xt>&lt;\/script&gt;</xt>.
130    *
131    * <ul class='notes'>
132    *    <li>
133    *       Possible values:
134    *       <ul>
135    *          <li><js>"true"</js>
136    *          <li><js>"false"</js> (default)
137    *       </ul>
138    *    <li>
139    *       Supports {@doc DefaultVarResolver} (e.g. <js>"$C{myConfigVar}"</js>).
140    * </ul>
141    *
142    * <ul class='seealso'>
143    *    <li class='jf'>{@link JsonSerializer#JSON_escapeSolidus}
144    * </ul>
145    */
146   String escapeSolidus() default "";
147
148   /**
149    * Configuration property:  Simple JSON mode.
150    *
151    * <p>
152    * If <js>"true"</js>, JSON attribute names will only be quoted when necessary.
153    * <br>Otherwise, they are always quoted.
154    *
155    * <p>
156    * Attributes do not need to be quoted when they conform to the following:
157    * <ol class='spaced-list'>
158    *    <li>They start with an ASCII character or <js>'_'</js>.
159    *    <li>They contain only ASCII characters or numbers or <js>'_'</js>.
160    *    <li>They are not one of the following reserved words:
161    *       <p class='bcode w800'>
162    *    arguments, break, case, catch, class, const, continue, debugger, default,
163    *    delete, do, else, enum, eval, export, extends, false, finally, for, function,
164    *    if, implements, import, in, instanceof, interface, let, new, null, package,
165    *    private, protected, public, return, static, super, switch, this, throw,
166    *    true, try, typeof, var, void, while, with, undefined, yield
167    *       </p>
168    * </ol>
169    *
170    * <ul class='notes'>
171    *    <li>
172    *       Possible values:
173    *       <ul>
174    *          <li><js>"true"</js>
175    *          <li><js>"false"</js> (default)
176    *       </ul>
177    *    <li>
178    *       Supports {@doc DefaultVarResolver} (e.g. <js>"$C{myConfigVar}"</js>).
179    * </ul>
180    *
181    * <ul class='seealso'>
182    *    <li class='jf'>{@link JsonSerializer#JSON_simpleMode}
183    * </ul>
184    */
185   String simpleMode() default "";
186}