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package jdk.javadoc.internal.doclets.toolkit;

import java.text.MessageFormat;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import java.util.function.Function;


Access to the localizable resources used by a doclet.
The resources are split across two resource bundles:
one that contains format-neutral strings common to
all supported formats, and one that contains strings
specific to the selected doclet, such as the standard
HTML doclet.

/**
 * Access to the localizable resources used by a doclet.
 * The resources are split across two resource bundles:
 * one that contains format-neutral strings common to
 * all supported formats, and one that contains strings
 * specific to the selected doclet, such as the standard
 * HTML doclet.
 */
public class Resources {

    protected final ResourceBundle commonBundle;
    protected final ResourceBundle docletBundle;
    protected Function<String, String> mapper;

    
Creates a Resources object to provide access the resource bundles used by a doclet. 
Params:
  • locale –           the locale to be used when accessing the
                        resource bundles.
  • commonBundleName – the name of the bundle containing the strings
                        common to all output formats
  • docletBundleName – the name of the bundle containing the strings
                        specific to a particular format
/**
     * Creates a {@code Resources} object to provide access the resource
     * bundles used by a doclet.
     *
     * @param locale           the locale to be used when accessing the
     *                         resource bundles.
     * @param commonBundleName the name of the bundle containing the strings
     *                         common to all output formats
     * @param docletBundleName the name of the bundle containing the strings
     *                         specific to a particular format
     */
    public Resources(Locale locale, String commonBundleName, String docletBundleName) {
        this.commonBundle = ResourceBundle.getBundle(commonBundleName, locale);
        this.docletBundle = ResourceBundle.getBundle(docletBundleName, locale);
    }

    public void setKeyMapper(Function<String, String> mapper) {
        this.mapper = mapper;
    }

    
Returns the string for the given key from one of the doclet's resource bundles. If the current mapper is not null, it will be applied to the key before looking up the resulting key in the resource bundle(s). The more specific bundle is checked first; if it is not there, the common bundle is then checked. 
Params:
  • key – the key for the desired string
Throws:
Returns:the string for the given key
/**
     * Returns the string for the given key from one of the doclet's
     * resource bundles. If the current {@code mapper} is not {@code null},
     * it will be applied to the {@code key} before looking up the resulting
     * key in the resource bundle(s).
     *
     * The more specific bundle is checked first;
     * if it is not there, the common bundle is then checked.
     *
     * @param key the key for the desired string
     * @return the string for the given key
     * @throws MissingResourceException if the key is not found in either
     *                                  bundle.
     */
    public String getText(String key) throws MissingResourceException {
        String mKey = mapper == null ? key : mapper.apply(key);

        if (docletBundle.containsKey(mKey))
            return docletBundle.getString(mKey);

        return commonBundle.getString(mKey);
    }

    
Returns the string for the given key (after applying the current mapper if it is not null) from one of the doclet's resource bundles, substituting additional arguments into into the resulting string with Format.format. The more specific bundle is checked first; if it is not there, the common bundle is then checked. 
Params:
  • key – the key for the desired string
  • args – values to be substituted into the resulting string
Throws:
Returns:the string for the given key
/**
     * Returns the string for the given key (after applying the current
     * {@code mapper} if it is not {@code null}) from one of the doclet's
     * resource bundles, substituting additional arguments into
     * into the resulting string with {@link MessageFormat#format}.
     *
     * The more specific bundle is checked first;
     * if it is not there, the common bundle is then checked.
     *
     * @param key the key for the desired string
     * @param args values to be substituted into the resulting string
     * @return the string for the given key
     * @throws MissingResourceException if the key is not found in either
     *  bundle.
     */
    public String getText(String key, Object... args) throws MissingResourceException {
        return MessageFormat.format(getText(key), args);
    }
}