restx.entity.EntityRequestBodyReaderRegistry Maven / Gradle / Ivy
package restx.entity;
import com.google.common.base.Joiner;
import com.google.common.base.Optional;
import restx.factory.Component;
import java.lang.reflect.Type;
/**
* Date: 23/10/13
* Time: 09:53
*/
@Component
public class EntityRequestBodyReaderRegistry {
private final EntityContentTypeResolver entityContentTypeResolver;
private final Iterable entityRequestBodyReaderFactories;
public EntityRequestBodyReaderRegistry(Iterable entityDefaultContentTypeProviders,
Iterable entityRequestBodyReaderFactories) {
entityContentTypeResolver = new EntityContentTypeResolver(entityDefaultContentTypeProviders);
this.entityRequestBodyReaderFactories = entityRequestBodyReaderFactories;
}
@SuppressWarnings("unchecked")
public EntityRequestBodyReader build(final Type type, Optional contentType) {
String ct = entityContentTypeResolver.resolveContentType(type, contentType);
for (EntityRequestBodyReaderFactory readerFactory : entityRequestBodyReaderFactories) {
Optional> reader = readerFactory.mayBuildFor(type, ct);
if (reader.isPresent()) {
return (EntityRequestBodyReader) reader.get();
}
}
throw new IllegalStateException(String.format(
"no EntityRequestBodyReader built for %s %s.\n\n" +
"The list of factories are:\n%s.\n\n" +
"This may be because the content type '%s' is not handled by your RESTX install.\n\n" +
"Possible causes:\n" +
" - you set the content type manually and mistyped it\n" +
" - you are missing the EntityRequestBodyReaderFactory for this content type in your classpath\n",
type, ct, Joiner.on("\n\t").join(entityRequestBodyReaderFactories), ct));
}
}