core.engine.processor.PutRequestProcessor Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of EpikosRestService Show documentation

Epikos is a Rest Serivce framework which can be extend to develop any other Rest API/Services. For more detail please checkout github (https://github.com/epikosrest/epikos.git)

There is a newer version: 0.0.7.8.1

Show newest version

package core.engine.processor;

import core.domain.enums.Status;
import core.dynamic.resources.DynamicRequest;
import core.dynamic.resources.IDynamicResourceControllerPUT;
import metrics.Metrics;

import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by nitina on 10/15/16.
 */
public class PutRequestProcessor extends RequestProcessor{

    public PutRequestProcessor(Class controller,
                               Metrics metricsRecorder,
                               ContainerRequestContext containerRequestContext,
                               String mediaTypeToProduce,String status){
        super(controller,metricsRecorder,containerRequestContext,mediaTypeToProduce,status);

    }

    /*
    The function process PUT request.
    Param status in this method determines what kind of response to return.
    As per RFC ref https://tools.ietf.org/html/rfc2616#section-9.6 It only supports NOCONTENT, CREATED and OK
    If any other status is listed then it will return OK. In case of error BAD REQUEST and INTERNAL SERVICE ERROR
    with appropriate error message will return
     */
    @Override
    public Response process() throws IllegalAccessException, InstantiationException {
        final IDynamicResourceControllerPUT cont = (IDynamicResourceControllerPUT) controller.newInstance();
        final MultivaluedMap pathParams = containerRequestContext.getUriInfo().getPathParameters();

        try {

            final DynamicRequest dynamicRequest = new DynamicRequest(containerRequestContext,pathParams);
            metricsRecorder.startTimerContext();

            Integer statusCode = Status.getStatusCode(status);

            List supportedStatus = getSupportedStatusListForPUTMethod();
            verifyStatusIsSupportedForTheMethod(supportedStatus,statusCode);

            Object response = cont.process(dynamicRequest);
            return constructResponse(response,statusCode);

        }catch (Exception exp) {

            return constructErrorResponse(exp,mediaTypeToProduce);

        }finally
        {
            metricsRecorder.stopTimerContext();
        }
    }

    private final List getSupportedStatusListForPUTMethod(){
        List supportedStatusList = new ArrayList<>();
        supportedStatusList.add(Status.OK);
        supportedStatusList.add(Status.NOCONTENT);
        supportedStatusList.add(Status.CREATED);
        return supportedStatusList;
    }
}