package org.hibernate.validator.messageinterpolation;
import java.lang.invoke.MethodHandles;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Collections;
import java.util.Locale;
import java.util.Set;
import org.hibernate.validator.Incubating;
import org.hibernate.validator.internal.engine.messageinterpolation.DefaultLocaleResolver;
import org.hibernate.validator.internal.engine.messageinterpolation.InterpolationTerm;
import org.hibernate.validator.internal.util.logging.Log;
import org.hibernate.validator.internal.util.logging.LoggerFactory;
import org.hibernate.validator.internal.util.privilegedactions.GetClassLoader;
import org.hibernate.validator.internal.util.privilegedactions.SetContextClassLoader;
import org.hibernate.validator.spi.messageinterpolation.LocaleResolver;
import org.hibernate.validator.spi.resourceloading.ResourceBundleLocator;
import com.sun.el.ExpressionFactoryImpl;
import jakarta.el.ELManager;
import jakarta.el.ExpressionFactory;
public class ResourceBundleMessageInterpolator extends AbstractMessageInterpolator {
private static final Log LOG = LoggerFactory.make( MethodHandles.lookup() );
private final ExpressionFactory expressionFactory;
public ResourceBundleMessageInterpolator() {
this( Collections.emptySet(), Locale.getDefault(), new DefaultLocaleResolver(), false );
}
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator) {
this( userResourceBundleLocator, Collections.emptySet(), Locale.getDefault(), new DefaultLocaleResolver(), false );
}
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
ResourceBundleLocator contributorResourceBundleLocator) {
this( userResourceBundleLocator, contributorResourceBundleLocator, Collections.emptySet(), Locale.getDefault(), new DefaultLocaleResolver(), false );
}
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
ResourceBundleLocator contributorResourceBundleLocator,
boolean cachingEnabled) {
this( userResourceBundleLocator, contributorResourceBundleLocator, Collections.emptySet(), Locale.getDefault(), new DefaultLocaleResolver(),
false, cachingEnabled );
}
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator, boolean cachingEnabled) {
this( userResourceBundleLocator, null, Collections.emptySet(), Locale.getDefault(), new DefaultLocaleResolver(), false, cachingEnabled );
}
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
boolean cachingEnabled,
ExpressionFactory expressionFactory) {
this( userResourceBundleLocator, null, Collections.emptySet(), Locale.getDefault(), new DefaultLocaleResolver(), false, cachingEnabled );
}
@Incubating
public ResourceBundleMessageInterpolator(Set<Locale> locales, Locale defaultLocale, LocaleResolver localeResolver, boolean preloadResourceBundles) {
super( locales, defaultLocale, localeResolver, preloadResourceBundles );
this.expressionFactory = buildExpressionFactory();
}
@Incubating
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
Set<Locale> locales,
Locale defaultLocale,
LocaleResolver localeResolver,
boolean preloadResourceBundles) {
super( userResourceBundleLocator, locales, defaultLocale, localeResolver, preloadResourceBundles );
this.expressionFactory = buildExpressionFactory();
}
@Incubating
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
ResourceBundleLocator contributorResourceBundleLocator,
Set<Locale> locales,
Locale defaultLocale,
LocaleResolver localeResolver,
boolean preloadResourceBundles) {
super( userResourceBundleLocator, contributorResourceBundleLocator, locales, defaultLocale, localeResolver, preloadResourceBundles );
this.expressionFactory = buildExpressionFactory();
}
@Incubating
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
ResourceBundleLocator contributorResourceBundleLocator,
Set<Locale> locales,
Locale defaultLocale,
LocaleResolver localeResolver,
boolean preloadResourceBundles,
boolean cachingEnabled) {
super( userResourceBundleLocator, contributorResourceBundleLocator, locales, defaultLocale, localeResolver, preloadResourceBundles,
cachingEnabled );
this.expressionFactory = buildExpressionFactory();
}
@Incubating
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
Set<Locale> locales,
Locale defaultLocale,
LocaleResolver localeResolver,
boolean preloadResourceBundles,
boolean cachingEnabled) {
super( userResourceBundleLocator, null, locales, defaultLocale, localeResolver, preloadResourceBundles, cachingEnabled );
this.expressionFactory = buildExpressionFactory();
}
@Incubating
public ResourceBundleMessageInterpolator(ResourceBundleLocator userResourceBundleLocator,
Set<Locale> locales,
Locale defaultLocale,
LocaleResolver localeResolver,
boolean preloadResourceBundles,
boolean cachingEnabled,
ExpressionFactory expressionFactory) {
super( userResourceBundleLocator, null, locales, defaultLocale, localeResolver, preloadResourceBundles, cachingEnabled );
this.expressionFactory = expressionFactory;
}
@Override
protected String interpolate(Context context, Locale locale, String term) {
InterpolationTerm expression = new InterpolationTerm( term, locale, expressionFactory );
return expression.interpolate( context );
}
private static ExpressionFactory buildExpressionFactory() {
if ( canLoadExpressionFactory() ) {
ExpressionFactory expressionFactory = ELManager.getExpressionFactory();
LOG.debug( "Loaded expression factory via original TCCL" );
return expressionFactory;
}
final ClassLoader originalContextClassLoader = run( GetClassLoader.fromContext() );
try {
run( SetContextClassLoader.action( ResourceBundleMessageInterpolator.class.getClassLoader() ) );
if ( canLoadExpressionFactory() ) {
ExpressionFactory expressionFactory = ELManager.getExpressionFactory();
LOG.debug( "Loaded expression factory via HV classloader" );
return expressionFactory;
}
run( SetContextClassLoader.action( ELManager.class.getClassLoader() ) );
if ( canLoadExpressionFactory() ) {
ExpressionFactory expressionFactory = ELManager.getExpressionFactory();
LOG.debug( "Loaded expression factory via EL classloader" );
return expressionFactory;
}
run( SetContextClassLoader.action( ExpressionFactoryImpl.class.getClassLoader() ) );
if ( canLoadExpressionFactory() ) {
ExpressionFactory expressionFactory = ELManager.getExpressionFactory();
LOG.debug( "Loaded expression factory via com.sun.el classloader" );
return expressionFactory;
}
}
catch (Throwable e) {
throw LOG.getUnableToInitializeELExpressionFactoryException( e );
}
finally {
run( SetContextClassLoader.action( originalContextClassLoader ) );
}
throw LOG.getUnableToInitializeELExpressionFactoryException( null );
}
private static boolean canLoadExpressionFactory() {
try {
ExpressionFactory.newInstance();
return true;
}
catch (Throwable e) {
LOG.debugv( e, "Failed to load expression factory via classloader {0}",
run( GetClassLoader.fromContext() ) );
return false;
}
}
private static <T> T run(PrivilegedAction<T> action) {
return System.getSecurityManager() != null ? AccessController.doPrivileged( action ) : action.run();
}
}