/**
* Returns all bindable types on the classpath.
*
* @param context the current generator context
* @return a set of meta classes representing the all bindable types (both annotated and
* configured in ErraiApp.properties).
*/
public static Set<MetaClass> getAllBindableTypes(final GeneratorContext context) {
Collection<MetaClass> annotatedBindableTypes =
ClassScanner.getTypesAnnotatedWith(
Bindable.class, RebindUtils.findTranslatablePackages(context), context);
Set<MetaClass> bindableTypes = new HashSet<MetaClass>(annotatedBindableTypes);
bindableTypes.addAll(DataBindingUtil.getConfiguredBindableTypes());
return bindableTypes;
}
/**
* Erases the {@link MetaClassFactory} cache, then populates it with types discovered via GWT's
* TypeOracle. The reason for the initial flush of the MetaClassFactory is to support hot redeploy
* in Dev Mode. The reason for doing this operation at all is so that the overridden class
* definitions (super-source classes) are used in preference to the Java reflection based class
* definitions.
*
* @param context The GeneratorContext supplied by the GWT compiler. Not null.
* @param logger The TreeLogger supplied by the GWT compiler. Not null.
*/
public static void populateMetaClassFactoryFromTypeOracle(
final GeneratorContext context, final TreeLogger logger) {
// if we're in production mode -- it means we're compiling, and we do not need to accommodate
// dynamically
// changing classes. Therefore, do a NOOP after the first successful call.
if (typeOraclePopulated && (context.equals(populatedFrom.get()) || EnvUtil.isProdMode())) {
return;
}
final TypeOracle typeOracle = context.getTypeOracle();
MetaClassFactory.emptyCache();
if (typeOracle != null) {
final Set<String> translatable =
new HashSet<String>(RebindUtils.findTranslatablePackages(context));
translatable.remove("java.lang");
translatable.remove("java.lang.annotation");
for (final JClassType type : typeOracle.getTypes()) {
if (!translatable.contains(type.getPackage().getName())) {
logger.log(
com.google.gwt.core.ext.TreeLogger.Type.DEBUG,
"Skipping non-translatable " + type.getQualifiedSourceName());
continue;
}
if (type.isAnnotation() != null
|| type.getQualifiedSourceName().equals("java.lang.annotation.Annotation")) {
logger.log(
com.google.gwt.core.ext.TreeLogger.Type.DEBUG,
"Caching annotation type " + type.getQualifiedSourceName());
if (!MetaClassFactory.canLoadClass(type.getQualifiedBinaryName())) {
throw new RuntimeException(
"a new annotation has been introduced ("
+ type.getQualifiedSourceName()
+ "); "
+ "you cannot currently introduce new annotations in devmode. Please restart.");
}
MetaClassFactory.pushCache(
JavaReflectionClass.newUncachedInstance(
MetaClassFactory.loadClass(type.getQualifiedBinaryName())));
} else {
logger.log(
com.google.gwt.core.ext.TreeLogger.Type.DEBUG,
"Caching translatable type " + type.getQualifiedSourceName());
MetaClassFactory.pushCache(GWTClass.newInstance(typeOracle, type));
}
}
}
typeOraclePopulated = true;
populatedFrom = new SoftReference<GeneratorContext>(context);
}