18154768944

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

Build # 18154768944

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push

github

Committed by

web-flow

Commit Message

Merge pull request #290 from TAKETODAY/dev/jspecify

jspecify

Coverage Stats

59788 of 78013 branches covered (76.64%)

Branch coverage included in aggregate %.

141239 of 167496 relevant lines covered (84.32%)

3.6 hits per line

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86.36

today-context/src/main/java/infra/context/support/DelegatingMessageSource.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.context.support;

import org.jspecify.annotations.Nullable;

import java.util.Locale;

import infra.context.HierarchicalMessageSource;
import infra.context.MessageSource;
import infra.context.MessageSourceResolvable;
import infra.context.NoSuchMessageException;

/**
 * Empty {@link MessageSource} that delegates all calls to the parent MessageSource.
 * If no parent is available, it simply won't resolve any message.
 *
 * <p>Used as placeholder by AbstractApplicationContext, if the context doesn't
 * define its own MessageSource. Not intended for direct use in applications.
 *
 * @author Juergen Hoeller
 * @author <a href="https://github.com/TAKETODAY">Harry Yang</a>
 * @see AbstractApplicationContext
 * @since 4.0
 */
public class DelegatingMessageSource extends MessageSourceSupport implements HierarchicalMessageSource {

  @Nullable
  private MessageSource parentMessageSource;

  @Override
  public void setParentMessageSource(@Nullable MessageSource parent) {
    this.parentMessageSource = parent;
  }

  @Override
  @Nullable
  public MessageSource getParentMessageSource() {
    return this.parentMessageSource;
  }

  @Override
  @Nullable
  public String getMessage(String code, Object @Nullable [] args, @Nullable String defaultMessage, @Nullable Locale locale) {
    if (this.parentMessageSource != null) {
      return this.parentMessageSource.getMessage(code, args, defaultMessage, locale);
    }
    else if (defaultMessage != null) {
      return renderDefaultMessage(defaultMessage, args, locale);
    }
    else {
      return null;
    }
  }

  @Override
  public String getMessage(String code, Object @Nullable [] args, @Nullable Locale locale) throws NoSuchMessageException {
    if (this.parentMessageSource != null) {
      return this.parentMessageSource.getMessage(code, args, locale);
    }
    else {
      if (locale == null) {
        throw new NoSuchMessageException(code);
      }
      else {
        throw new NoSuchMessageException(code, locale);
      }
    }
  }

  @Override
  public String getMessage(MessageSourceResolvable resolvable, @Nullable Locale locale) throws NoSuchMessageException {
    if (this.parentMessageSource != null) {
      return this.parentMessageSource.getMessage(resolvable, locale);
    }
    else {
      if (resolvable.getDefaultMessage() != null) {
        return renderDefaultMessage(resolvable.getDefaultMessage(), resolvable.getArguments(), locale);
      }
      String[] codes = resolvable.getCodes();
      String code = (codes != null && codes.length > 0 ? codes[0] : "");
      if (locale == null) {
        throw new NoSuchMessageException(code);
      }
      else {
        throw new NoSuchMessageException(code, locale);
      }
    }
  }

  @Override
  public String toString() {
    return this.parentMessageSource != null ? this.parentMessageSource.toString() : "Empty MessageSource";
  }

}

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.context.support;
19
20	import org.jspecify.annotations.Nullable;
21
22	import java.util.Locale;
23
24	import infra.context.HierarchicalMessageSource;
25	import infra.context.MessageSource;
26	import infra.context.MessageSourceResolvable;
27	import infra.context.NoSuchMessageException;
28
29	/**
30	* Empty {@link MessageSource} that delegates all calls to the parent MessageSource.
31	* If no parent is available, it simply won't resolve any message.
32	*
33	* <p>Used as placeholder by AbstractApplicationContext, if the context doesn't
34	* define its own MessageSource. Not intended for direct use in applications.
35	*
36	* @author Juergen Hoeller
37	* @author <a href="https://github.com/TAKETODAY">Harry Yang</a>
38	* @see AbstractApplicationContext
39	* @since 4.0
40	*/
41	public class DelegatingMessageSource extends MessageSourceSupport implements HierarchicalMessageSource {	3✔
42
43	@Nullable
44	private MessageSource parentMessageSource;
45
46	@Override
47	public void setParentMessageSource(@Nullable MessageSource parent) {
48	this.parentMessageSource = parent;	3✔
49	}	1✔
50
51	@Override
52	@Nullable
53	public MessageSource getParentMessageSource() {
54	return this.parentMessageSource;	3✔
55	}
56
57	@Override
58	@Nullable
59	public String getMessage(String code, Object @Nullable [] args, @Nullable String defaultMessage, @Nullable Locale locale) {
60	if (this.parentMessageSource != null) {	3✔
61	return this.parentMessageSource.getMessage(code, args, defaultMessage, locale);	8✔
62	}
63	else if (defaultMessage != null) {	2✔
64	return renderDefaultMessage(defaultMessage, args, locale);	6✔
65	}
66	else {
67	return null;	2✔
68	}
69	}
70
71	@Override
72	public String getMessage(String code, Object @Nullable [] args, @Nullable Locale locale) throws NoSuchMessageException {
73	if (this.parentMessageSource != null) {	3✔
74	return this.parentMessageSource.getMessage(code, args, locale);	7✔
75	}
76	else {
77	if (locale == null) {	2!
78	throw new NoSuchMessageException(code);	×
79	}
80	else {
81	throw new NoSuchMessageException(code, locale);	6✔
82	}
83	}
84	}
85
86	@Override
87	public String getMessage(MessageSourceResolvable resolvable, @Nullable Locale locale) throws NoSuchMessageException {
88	if (this.parentMessageSource != null) {	3✔
89	return this.parentMessageSource.getMessage(resolvable, locale);	6✔
90	}
91	else {
92	if (resolvable.getDefaultMessage() != null) {	3✔
93	return renderDefaultMessage(resolvable.getDefaultMessage(), resolvable.getArguments(), locale);	8✔
94	}
95	String[] codes = resolvable.getCodes();	3✔
96	String code = (codes != null && codes.length > 0 ? codes[0] : "");	10!
97	if (locale == null) {	2!
98	throw new NoSuchMessageException(code);	×
99	}
100	else {
101	throw new NoSuchMessageException(code, locale);	6✔
102	}
103	}
104	}
105
106	@Override
107	public String toString() {
108	return this.parentMessageSource != null ? this.parentMessageSource.toString() : "Empty MessageSource";	9✔
109	}
110
111	}

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