/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.everrest;
import org.eclipse.che.api.core.ApiException;
import org.eclipse.che.api.core.BadRequestException;
import org.eclipse.che.api.core.ConflictException;
import org.eclipse.che.api.core.ForbiddenException;
import org.eclipse.che.api.core.NotFoundException;
import org.eclipse.che.api.core.ServerException;
import org.eclipse.che.api.core.UnauthorizedException;
import org.eclipse.che.dto.server.DtoFactory;
import org.everrest.core.method.MethodInvokerFilter;
import org.everrest.core.resource.GenericResourceMethod;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
/**
* Abstract implementation of {@link MethodInvokerFilter} which allow to throw instances of {@link ApiException}
* which will be mapped to corresponded response
*
* @author Sergii Leschenko
*/
public abstract class CheMethodInvokerFilter implements MethodInvokerFilter {
@Override
public void accept(GenericResourceMethod genericMethodResource, Object[] arguments) throws WebApplicationException {
try {
filter(genericMethodResource, arguments);
} catch (ApiException exception) {
Response response;
if (exception instanceof ForbiddenException) {
response = Response.status(Response.Status.FORBIDDEN)
.entity(DtoFactory.getInstance().toJson(exception.getServiceError()))
.type(MediaType.APPLICATION_JSON)
.build();
} else if (exception instanceof NotFoundException) {
response = Response.status(Response.Status.NOT_FOUND)
.entity(DtoFactory.getInstance().toJson(exception.getServiceError()))
.type(MediaType.APPLICATION_JSON)
.build();
} else if (exception instanceof UnauthorizedException)
response = Response.status(Response.Status.UNAUTHORIZED)
.entity(DtoFactory.getInstance().toJson(exception.getServiceError()))
.type(MediaType.APPLICATION_JSON)
.build();
else if (exception instanceof BadRequestException) {
response = Response.status(Response.Status.BAD_REQUEST)
.entity(DtoFactory.getInstance().toJson(exception.getServiceError()))
.type(MediaType.APPLICATION_JSON)
.build();
} else if (exception instanceof ConflictException) {
response = Response.status(Response.Status.CONFLICT)
.entity(DtoFactory.getInstance().toJson(exception.getServiceError()))
.type(MediaType.APPLICATION_JSON)
.build();
} else if (exception instanceof ServerException) {
response = Response.serverError()
.entity(DtoFactory.getInstance().toJson(exception.getServiceError()))
.type(MediaType.APPLICATION_JSON)
.build();
} else {
response = Response.serverError()
.entity(DtoFactory.getInstance().toJson(exception.getServiceError()))
.type(MediaType.APPLICATION_JSON)
.build();
}
throw new WebApplicationException(response);
}
}
/**
* Check does supplied method can be invoked.
*
* @param genericMethodResource
* See {@link GenericResourceMethod}
* @param arguments
* actual method arguments that were created from request
* @throws ApiException
* if method can not be invoked cause current environment context, e.g. for current user, with current request attributes, etc.
*/
protected abstract void filter(GenericResourceMethod genericMethodResource, Object[] arguments) throws ApiException;
}