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AbstractMessageSource does not attempt to format code-as-default-message

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Issue: SPR-15123
This commit is contained in:
Juergen Hoeller
2017-01-12 21:16:48 +01:00
parent 8084da59a7
commit b06423a5f8
2 changed files with 78 additions and 37 deletions
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68
spring-context/src/main/java/org/springframework/context/support/AbstractMessageSource.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2016 the original author or authors.
* Copyright 2002-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -160,30 +160,21 @@ public abstract class AbstractMessageSource extends MessageSourceSupport impleme
}
@Override
public final String getMessage(MessageSourceResolvable resolvable, Locale locale)
throws NoSuchMessageException {
public final String getMessage(MessageSourceResolvable resolvable, Locale locale) throws NoSuchMessageException {
String[] codes = resolvable.getCodes();
if (codes == null) {
codes = new String[0];
}
for (String code : codes) {
String msg = getMessageInternal(code, resolvable.getArguments(), locale);
if (msg != null) {
return msg;
if (codes != null) {
for (String code : codes) {
String message = getMessageInternal(code, resolvable.getArguments(), locale);
if (message != null) {
return message;
}
}
}
String defaultMessage = resolvable.getDefaultMessage();
String defaultMessage = getDefaultMessage(resolvable, locale);
if (defaultMessage != null) {
return renderDefaultMessage(defaultMessage, resolvable.getArguments(), locale);
return defaultMessage;
}
if (codes.length > 0) {
String fallback = getDefaultMessage(codes[0]);
if (fallback != null) {
return fallback;
}
}
throw new NoSuchMessageException(codes.length > 0 ? codes[codes.length - 1] : null, locale);
throw new NoSuchMessageException(!ObjectUtils.isEmpty(codes) ? codes[codes.length - 1] : null, locale);
}
@@ -194,7 +185,7 @@ public abstract class AbstractMessageSource extends MessageSourceSupport impleme
* @param code the code to lookup up, such as 'calculator.noRateSet'
* @param args array of arguments that will be filled in for params
* within the message
* @param locale the Locale in which to do the lookup
* @param locale the locale in which to do the lookup
* @return the resolved message, or {@code null} if not found
* @see #getMessage(String, Object[], String, Locale)
* @see #getMessage(String, Object[], Locale)
@@ -249,11 +240,11 @@ public abstract class AbstractMessageSource extends MessageSourceSupport impleme
}
/**
* Try to retrieve the given message from the parent MessageSource, if any.
* Try to retrieve the given message from the parent {@code MessageSource}, if any.
* @param code the code to lookup up, such as 'calculator.noRateSet'
* @param args array of arguments that will be filled in for params
* within the message
* @param locale the Locale in which to do the lookup
* @param locale the locale in which to do the lookup
* @return the resolved message, or {@code null} if not found
* @see #getParentMessageSource()
*/
@@ -274,11 +265,36 @@ public abstract class AbstractMessageSource extends MessageSourceSupport impleme
return null;
}
/**
* Get a default message for the given {@code MessageSourceResolvable}.
* <p>This implementation fully renders the default message if available,
* or just returns the plain default message {@code String} if the primary
* message code is being used as a default message.
* @param resolvable the value object to resolve a default message for
* @param locale the current locale
* @return the default message, or {@code null} if none
* @since 4.3.6
* @see #renderDefaultMessage(String, Object[], Locale)
* @see #getDefaultMessage(String)
*/
protected String getDefaultMessage(MessageSourceResolvable resolvable, Locale locale) {
String defaultMessage = resolvable.getDefaultMessage();
String[] codes = resolvable.getCodes();
if (defaultMessage != null) {
if (!ObjectUtils.isEmpty(codes) && defaultMessage.equals(codes[0])) {
// Never format a code-as-default-message, even with alwaysUseMessageFormat=true
return defaultMessage;
}
return renderDefaultMessage(defaultMessage, resolvable.getArguments(), locale);
}
return (!ObjectUtils.isEmpty(codes) ? getDefaultMessage(codes[0]) : null);
}
/**
* Return a fallback default message for the given code, if any.
* <p>Default is to return the code itself if "useCodeAsDefaultMessage" is activated,
* or return no fallback else. In case of no fallback, the caller will usually
* receive a NoSuchMessageException from {@code getMessage}.
* receive a {@code NoSuchMessageException} from {@code getMessage}.
* @param code the message code that we couldn't resolve
* and that we didn't receive an explicit default message for
* @return the default message to use, or {@code null} if none
@@ -328,7 +344,7 @@ public abstract class AbstractMessageSource extends MessageSourceSupport impleme
* pattern doesn't contain argument placeholders in the first place. Therefore,
* it is advisable to circumvent MessageFormat for messages without arguments.
* @param code the code of the message to resolve
* @param locale the Locale to resolve the code for
* @param locale the locale to resolve the code for
* (subclasses are encouraged to support internationalization)
* @return the message String, or {@code null} if not found
* @see #resolveCode
@@ -352,7 +368,7 @@ public abstract class AbstractMessageSource extends MessageSourceSupport impleme
* for messages without arguments, not involving MessageFormat.</b>
* See the {@link #resolveCodeWithoutArguments} javadoc for details.
* @param code the code of the message to resolve
* @param locale the Locale to resolve the code for
* @param locale the locale to resolve the code for
* (subclasses are encouraged to support internationalization)
* @return the MessageFormat for the message, or {@code null} if not found
* @see #resolveCodeWithoutArguments(String, java.util.Locale)