org.glassfish.admin.rest.readers.RestModelReader Maven / Gradle / Ivy
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package org.glassfish.admin.rest.readers;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Locale;
import java.util.Set;
import jakarta.json.Json;
import jakarta.json.JsonException;
import jakarta.json.JsonObject;
import jakarta.json.JsonValue;
import jakarta.json.stream.JsonParser;
import jakarta.validation.ConstraintViolation;
import jakarta.ws.rs.Consumes;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.WebApplicationException;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.core.Response;
import jakarta.ws.rs.core.Response.Status;
import jakarta.ws.rs.ext.MessageBodyReader;
import jakarta.ws.rs.ext.Provider;
import org.glassfish.admin.rest.Constants;
import org.glassfish.admin.rest.composite.CompositeUtil;
import org.glassfish.admin.rest.composite.RestModel;
/**
*
* @author jdlee
*/
@Provider
@Produces(Constants.MEDIA_TYPE_JSON)
@Consumes(Constants.MEDIA_TYPE_JSON)
public class RestModelReader implements MessageBodyReader {
@Override
public boolean isReadable(Class type, Type genericType, Annotation[] annotations,
MediaType mediaType) {
String submittedType = mediaType.toString();
int index = submittedType.indexOf(';');
if (index > -1) {
submittedType = submittedType.substring(0, index);
}
return submittedType.equals(Constants.MEDIA_TYPE_JSON) &&
RestModel.class.isAssignableFrom(type);
}
@Override
public T readFrom(Class type, Type type1, Annotation[] antns, MediaType mt,
MultivaluedMap mm, InputStream entityStream) throws WebApplicationException, IOException {
try (BufferedReader in = new BufferedReader(new InputStreamReader(entityStream));
JsonParser parser = Json.createParser(in)) {
final Locale locale = CompositeUtil.instance().getLocale(mm);
JsonObject o;
if (parser.hasNext()){
parser.next();
o = parser.getObject();
} else {
o = JsonValue.EMPTY_JSON_OBJECT;
}
T model = CompositeUtil.instance().unmarshallClass(locale, type, o);
Set> cv = CompositeUtil.instance().validateRestModel(locale, model);
if (!cv.isEmpty()) {
final Response response = Response.status(Status.BAD_REQUEST)
.entity(CompositeUtil.instance().getValidationFailureMessages(locale, cv, model))
.build();
throw new WebApplicationException(response);
}
return model;
} catch (JsonException ex) {
throw new WebApplicationException(Response.status(Status.INTERNAL_SERVER_ERROR)
.entity(ex.getLocalizedMessage()).build());
}
}
}