18154768944

Committed 01 Oct 2025 07:26AM UTC coverage: 81.882% (-0.005%) from 81.887%

Build # 18154768944

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push

github

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web-flow

Commit Message

Merge pull request #290 from TAKETODAY/dev/jspecify

jspecify

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81.82

today-context/src/main/java/infra/validation/MessageInterpolatorFactory.java

/*
 * Copyright 2017 - 2025 the original author or authors.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see [https://www.gnu.org/licenses/]
 */

package infra.validation;

import org.jspecify.annotations.Nullable;

import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.function.Supplier;

import infra.beans.BeanUtils;
import infra.beans.BeansException;
import infra.context.MessageSource;
import infra.util.ClassUtils;
import jakarta.validation.MessageInterpolator;
import jakarta.validation.Validation;
import jakarta.validation.ValidationException;

/**
 * {@link Supplier} that can be used to create a {@link MessageInterpolator}.
 * Attempts to pick the most appropriate {@link MessageInterpolator} based on the
 * classpath.
 *
 * @author Phillip Webb
 * @author <a href="https://github.com/TAKETODAY">Harry Yang</a>
 * @since 4.0
 */
public class MessageInterpolatorFactory implements Supplier<MessageInterpolator> {

  private static final Set<String> FALLBACKS;

  static {
    Set<String> fallbacks = new LinkedHashSet<>();
    fallbacks.add("org.hibernate.validator.messageinterpolation.ParameterMessageInterpolator");
    FALLBACKS = Collections.unmodifiableSet(fallbacks);
  }

  @Nullable
  private final MessageSource messageSource;

  public MessageInterpolatorFactory() {
    this(null);
  }

  /**
   * Creates a new {@link MessageInterpolatorFactory} that will produce a
   * {@link MessageInterpolator} that uses the given {@code messageSource} to resolve
   * any message parameters before final interpolation.
   *
   * @param messageSource message source to be used by the interpolator
   */
  public MessageInterpolatorFactory(@Nullable MessageSource messageSource) {
    this.messageSource = messageSource;
  }

  @Override
  public MessageInterpolator get() throws BeansException {
    MessageInterpolator messageInterpolator = getMessageInterpolator();
    if (this.messageSource != null) {
      return new MessageSourceMessageInterpolator(this.messageSource, messageInterpolator);
    }
    return messageInterpolator;
  }

  private MessageInterpolator getMessageInterpolator() {
    try {
      return Validation.byDefaultProvider().configure().getDefaultMessageInterpolator();
    }
    catch (ValidationException ex) {
      MessageInterpolator fallback = getFallback();
      if (fallback != null) {
        return fallback;
      }
      throw ex;
    }
  }

  @Nullable
  private MessageInterpolator getFallback() {
    for (String fallback : FALLBACKS) {
      try {
        return getFallback(fallback);
      }
      catch (Exception ex) {
        // Swallow and continue
      }
    }
    return null;
  }

  private MessageInterpolator getFallback(String fallback) {
    Class<?> interpolatorClass = ClassUtils.resolveClassName(fallback, null);
    Object interpolator = BeanUtils.newInstance(interpolatorClass);
    return (MessageInterpolator) interpolator;
  }

}

1	/*
2	* Copyright 2017 - 2025 the original author or authors.
3	*
4	* This program is free software: you can redistribute it and/or modify
5	* it under the terms of the GNU General Public License as published by
6	* the Free Software Foundation, either version 3 of the License, or
7	* (at your option) any later version.
8	*
9	* This program is distributed in the hope that it will be useful,
10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12	* GNU General Public License for more details.
13	*
14	* You should have received a copy of the GNU General Public License
15	* along with this program. If not, see [https://www.gnu.org/licenses/]
16	*/
17
18	package infra.validation;
19
20	import org.jspecify.annotations.Nullable;
21
22	import java.util.Collections;
23	import java.util.LinkedHashSet;
24	import java.util.Set;
25	import java.util.function.Supplier;
26
27	import infra.beans.BeanUtils;
28	import infra.beans.BeansException;
29	import infra.context.MessageSource;
30	import infra.util.ClassUtils;
31	import jakarta.validation.MessageInterpolator;
32	import jakarta.validation.Validation;
33	import jakarta.validation.ValidationException;
34
35	/**
36	* {@link Supplier} that can be used to create a {@link MessageInterpolator}.
37	* Attempts to pick the most appropriate {@link MessageInterpolator} based on the
38	* classpath.
39	*
40	* @author Phillip Webb
41	* @author <a href="https://github.com/TAKETODAY">Harry Yang</a>
42	* @since 4.0
43	*/
44	public class MessageInterpolatorFactory implements Supplier<MessageInterpolator> {
45
46	private static final Set<String> FALLBACKS;
47
48	static {
49	Set<String> fallbacks = new LinkedHashSet<>();	4✔
50	fallbacks.add("org.hibernate.validator.messageinterpolation.ParameterMessageInterpolator");	4✔
51	FALLBACKS = Collections.unmodifiableSet(fallbacks);	3✔
52	}	1✔
53
54	@Nullable
55	private final MessageSource messageSource;
56
57	public MessageInterpolatorFactory() {
58	this(null);	3✔
59	}	1✔
60
61	/**
62	* Creates a new {@link MessageInterpolatorFactory} that will produce a
63	* {@link MessageInterpolator} that uses the given {@code messageSource} to resolve
64	* any message parameters before final interpolation.
65	*
66	* @param messageSource message source to be used by the interpolator
67	*/
68	public MessageInterpolatorFactory(@Nullable MessageSource messageSource) {	2✔
69	this.messageSource = messageSource;	3✔
70	}	1✔
71
72	@Override
73	public MessageInterpolator get() throws BeansException {
74	MessageInterpolator messageInterpolator = getMessageInterpolator();	3✔
75	if (this.messageSource != null) {	3✔
76	return new MessageSourceMessageInterpolator(this.messageSource, messageInterpolator);	7✔
77	}
78	return messageInterpolator;	2✔
79	}
80
81	private MessageInterpolator getMessageInterpolator() {
82	try {
83	return Validation.byDefaultProvider().configure().getDefaultMessageInterpolator();	4✔
84	}
85	catch (ValidationException ex) {	1✔
86	MessageInterpolator fallback = getFallback();	3✔
87	if (fallback != null) {	2!
88	return fallback;	×
89	}
90	throw ex;	2✔
91	}
92	}
93
94	@Nullable
95	private MessageInterpolator getFallback() {
96	for (String fallback : FALLBACKS) {	10✔
97	try {
98	return getFallback(fallback);	×
99	}
100	catch (Exception ex) {	1✔
101	// Swallow and continue
102	}
103	}	1✔
104	return null;	2✔
105	}
106
107	private MessageInterpolator getFallback(String fallback) {
108	Class<?> interpolatorClass = ClassUtils.resolveClassName(fallback, null);	×
109	Object interpolator = BeanUtils.newInstance(interpolatorClass);	×
110	return (MessageInterpolator) interpolator;	×
111	}
112
113	}

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