org.glassfish.admin.rest.readers.RestModelListReader 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.ParameterizedType;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Set;
import jakarta.json.Json;
import jakarta.json.JsonArray;
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.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 org.glassfish.admin.rest.Constants;
import org.glassfish.admin.rest.composite.CompositeUtil;
import org.glassfish.admin.rest.composite.RestModel;
import org.glassfish.admin.rest.utils.Util;
/**
*
* @author jdlee
*/
@Consumes(Constants.MEDIA_TYPE_JSON)
public class RestModelListReader 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) &&
List.class.isAssignableFrom(type) &&
RestModel.class.isAssignableFrom(Util.getFirstGenericType(genericType));
}
@Override
public List readFrom(Class> type, Type genericType, Annotation[] annotations,
MediaType mediaType, MultivaluedMap httpHeaders,
InputStream entityStream) throws IOException, WebApplicationException {
try (BufferedReader in = new BufferedReader(new InputStreamReader(entityStream));
JsonParser parser = Json.createParser(in)) {
Locale locale = CompositeUtil.instance().getLocale(httpHeaders);
List list = new ArrayList<>();
JsonArray array;
if (parser.hasNext()){
parser.next();
array = parser.getArray();
} else {
array = JsonValue.EMPTY_JSON_ARRAY;
}
Class modelType = null;
if (genericType instanceof ParameterizedType) {
final ParameterizedType pt = (ParameterizedType) genericType;
modelType = (Class) pt.getActualTypeArguments()[0];
}
for (int i = 0; i < array.size(); i++) {
JsonObject o = array.getJsonObject(i);
RestModel model = (RestModel) CompositeUtil.instance().unmarshallClass(locale, modelType, 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);
}
list.add(model);
}
return list;
} catch (Exception e) {
throw new WebApplicationException(e);
}
}
}