org.surfnet.oaaas.resource.resourceserver.ResourceOwnerResource.java Source code

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Here is the source code for org.surfnet.oaaas.resource.resourceserver.ResourceOwnerResource.java

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/*
 * Copyright 2012 SURFnet bv, The Netherlands
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.surfnet.oaaas.resource.resourceserver;

import java.net.URI;
import java.util.Collections;
import java.util.List;

import javax.inject.Inject;
import javax.inject.Named;
import javax.servlet.http.HttpServletRequest;
import javax.validation.Valid;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.transaction.annotation.Transactional;
import org.surfnet.oaaas.model.ResourceOwner;
import org.surfnet.oaaas.repository.ResourceOwnerRepository;

/**
 * JAX-RS Resource for resource owners.
 */
@Named
@Path("/resourceOwner")
@Produces(MediaType.APPLICATION_JSON)
@Transactional
public class ResourceOwnerResource extends AbstractResource {

    private static final Logger LOG = LoggerFactory.getLogger(ResourceOwnerResource.class);

    @Inject
    private ResourceOwnerRepository resourceOwnerRepository;

    /**
     * Get all existing resource owners for the provided credentials (== owner) or in case of an adminPrincipal we return all resource servers.
     */
    @GET
    public Response getAll(@Context HttpServletRequest request) {
        Response validateScopeResponse = validateScope(request,
                Collections.singletonList(AbstractResource.SCOPE_READ));
        if (validateScopeResponse != null) {
            return validateScopeResponse;
        }
        List<ResourceOwner> resourceOwners = getAllResourceOwners(request);
        return Response.ok(resourceOwners).build();
    }

    /**
     * Get one resource owner.
     */
    @GET
    @Path("/{resourceOwnerId}")
    public Response getById(@Context HttpServletRequest request, @PathParam("resourceOwnerId") Long id) {
        Response validateScopeResponse = validateScope(request,
                Collections.singletonList(AbstractResource.SCOPE_READ));
        if (validateScopeResponse != null) {
            return validateScopeResponse;
        }
        return response(getResourceOwner(request, id));
    }

    /**
     * Save a new resource owner.
     */
    @PUT
    public Response put(@Context HttpServletRequest request, @Valid ResourceOwner newOne) {
        Response validateScopeResponse = validateScope(request,
                Collections.singletonList(AbstractResource.SCOPE_WRITE));
        if (validateScopeResponse != null) {
            return validateScopeResponse;
        }

        ResourceOwner resourceOwnerSaved;
        try {
            //we run transactional modus, so any constraint violations only occur after the commit of the transaction (to late...)
            validate(newOne);
            resourceOwnerSaved = resourceOwnerRepository.save(newOne);
        } catch (Exception e) {
            return buildErrorResponse(e);
        }

        LOG.debug("New resourceOwner has been saved: {}. ", resourceOwnerSaved);

        final URI uri = UriBuilder.fromPath("{resourceServerId}.json").build(resourceOwnerSaved.getId());
        return Response.created(uri).entity(resourceOwnerSaved).build();
    }

    /**
     * Delete an existing resource owner.
     */
    @DELETE
    @Path("/{resourceOwnerId}")
    public Response delete(@Context HttpServletRequest request, @PathParam("resourceOwnerId") Long id) {
        Response validateScopeResponse = validateScope(request,
                Collections.singletonList(AbstractResource.SCOPE_WRITE));
        if (validateScopeResponse != null) {
            return validateScopeResponse;
        }
        ResourceOwner resourceOwner = getResourceOwner(request, id);

        if (resourceOwner == null) {
            return Response.status(Response.Status.NOT_FOUND).build();
        }
        LOG.debug("About to delete resourceServer {}", id);
        resourceOwnerRepository.delete(id);
        return Response.noContent().build();
    }

    /**
     * Update an existing resource server.
     */
    @POST
    @Path("/{resourceOwnerId}")
    public Response post(@Valid final ResourceOwner resourceOwner, @Context HttpServletRequest request,
            @PathParam("resourceServerId") Long id) {
        Response validateScopeResponse = validateScope(request,
                Collections.singletonList(AbstractResource.SCOPE_WRITE));
        if (validateScopeResponse != null) {
            return validateScopeResponse;
        }

        ResourceOwner persistedResourceOwner = getResourceOwner(request, id);
        if (persistedResourceOwner == null) {
            return Response.status(Response.Status.NOT_FOUND).build();
        }

        LOG.debug("About to update existing resourceOwner {} with new properties: {}", persistedResourceOwner,
                resourceOwner);

        ResourceOwner savedInstance;
        try {
            //we run transactional modus, so any constraint violations only occur after the commit of the transaction (to late...)
            validate(resourceOwner);
            savedInstance = resourceOwnerRepository.save(resourceOwner);
        } catch (Exception e) {
            return buildErrorResponse(e);
        }

        return Response.ok(savedInstance).build();
    }

    private ResourceOwner getResourceOwner(HttpServletRequest request, Long id) {
        ResourceOwner resourceOwner;
        if (isAdminPrincipal(request)) {
            resourceOwner = resourceOwnerRepository.findOne(id);
        } else {
            String owner = getUserId(request);
            resourceOwner = resourceOwnerRepository.findByUsername(owner);
            if (resourceOwner != null && resourceOwner.getId() != id) {
                resourceOwner = null;
            }
        }
        LOG.debug("About to return one resourceServer with id {}: {}", id, resourceOwner);
        return resourceOwner;
    }

    private List<ResourceOwner> getAllResourceOwners(HttpServletRequest request) {
        List<ResourceOwner> resourceOwners;
        if (isAdminPrincipal(request)) {
            resourceOwners = addAll(resourceOwnerRepository.findAll().iterator());
            LOG.debug("About to return all resource owners ({}) for adminPrincipal", resourceOwners.size());
        } else {
            String owner = getUserId(request);
            ResourceOwner resourceOwner = resourceOwnerRepository.findByUsername(owner);
            if (resourceOwner == null) {
                resourceOwners = Collections.emptyList();
            } else {
                resourceOwners = Collections.singletonList(resourceOwner);
            }
            LOG.debug("About to return all resource owners ({}) for owner {}", resourceOwners.size(), owner);
        }
        return resourceOwners;
    }

}