Example usage for org.springframework.context HierarchicalMessageSource getParentMessageSource

Introduction

In this page you can find the example usage for org.springframework.context HierarchicalMessageSource getParentMessageSource.

Prototype

@Nullable
MessageSource getParentMessageSource();

Source Link

Document

Return the parent of this MessageSource, or null if none.

Usage

From source file:org.springframework.context.support.AbstractApplicationContext.java

/**
 * Initialize the MessageSource./*w w w . j a v  a  2s.c  om*/
 * Use parent's if none defined in this context.
 */
protected void initMessageSource() {
    ConfigurableListableBeanFactory beanFactory = getBeanFactory();
    if (beanFactory.containsLocalBean(MESSAGE_SOURCE_BEAN_NAME)) {
        this.messageSource = beanFactory.getBean(MESSAGE_SOURCE_BEAN_NAME, MessageSource.class);
        // Make MessageSource aware of parent MessageSource.
        if (this.parent != null && this.messageSource instanceof HierarchicalMessageSource) {
            HierarchicalMessageSource hms = (HierarchicalMessageSource) this.messageSource;
            if (hms.getParentMessageSource() == null) {
                // Only set parent context as parent MessageSource if no parent MessageSource
                // registered already.
                hms.setParentMessageSource(getInternalParentMessageSource());
            }
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Using MessageSource [" + this.messageSource + "]");
        }
    } else {
        // Use empty MessageSource to be able to accept getMessage calls.
        DelegatingMessageSource dms = new DelegatingMessageSource();
        dms.setParentMessageSource(getInternalParentMessageSource());
        this.messageSource = dms;
        beanFactory.registerSingleton(MESSAGE_SOURCE_BEAN_NAME, this.messageSource);
        if (logger.isDebugEnabled()) {
            logger.debug("Unable to locate MessageSource with name '" + MESSAGE_SOURCE_BEAN_NAME
                    + "': using default [" + this.messageSource + "]");
        }
    }
}

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From source file:org.springframework.ui.context.support.ResourceBundleThemeSource.java

/**
 * Initialize the MessageSource of the given theme with the
 * one from the corresponding parent of this ThemeSource.
 * @param theme the Theme to (re-)initialize
 *///from w  ww .  j ava 2s  .  c o  m
protected void initParent(Theme theme) {
    if (theme.getMessageSource() instanceof HierarchicalMessageSource) {
        HierarchicalMessageSource messageSource = (HierarchicalMessageSource) theme.getMessageSource();
        if (getParentThemeSource() != null && messageSource.getParentMessageSource() == null) {
            Theme parentTheme = getParentThemeSource().getTheme(theme.getName());
            if (parentTheme != null) {
                messageSource.setParentMessageSource(parentTheme.getMessageSource());
            }
        }
    }
}

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