| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.nifi.web.api; |
| |
| import io.swagger.annotations.Api; |
| import io.swagger.annotations.ApiOperation; |
| import io.swagger.annotations.ApiParam; |
| import io.swagger.annotations.ApiResponse; |
| import io.swagger.annotations.ApiResponses; |
| import io.swagger.annotations.Authorization; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.nifi.authorization.Authorizer; |
| import org.apache.nifi.authorization.RequestAction; |
| import org.apache.nifi.authorization.resource.Authorizable; |
| import org.apache.nifi.authorization.user.NiFiUserUtils; |
| import org.apache.nifi.web.NiFiServiceFacade; |
| import org.apache.nifi.web.Revision; |
| import org.apache.nifi.web.api.dto.FunnelDTO; |
| import org.apache.nifi.web.api.dto.PositionDTO; |
| import org.apache.nifi.web.api.entity.FunnelEntity; |
| import org.apache.nifi.web.api.request.ClientIdParameter; |
| import org.apache.nifi.web.api.request.LongParameter; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.ws.rs.Consumes; |
| import javax.ws.rs.DELETE; |
| import javax.ws.rs.DefaultValue; |
| import javax.ws.rs.GET; |
| import javax.ws.rs.HttpMethod; |
| import javax.ws.rs.PUT; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.QueryParam; |
| import javax.ws.rs.core.Context; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| import java.util.Set; |
| |
| /** |
| * RESTful endpoint for managing a Funnel. |
| */ |
| @Path("/funnels") |
| @Api( |
| value = "/funnel", |
| description = "Endpoint for managing a Funnel." |
| ) |
| public class FunnelResource extends ApplicationResource { |
| |
| private NiFiServiceFacade serviceFacade; |
| private Authorizer authorizer; |
| |
| /** |
| * Populates the uri for the specified funnels. |
| * |
| * @param funnelEntities funnels |
| * @return funnels |
| */ |
| public Set<FunnelEntity> populateRemainingFunnelEntitiesContent(Set<FunnelEntity> funnelEntities) { |
| for (FunnelEntity funnelEntity : funnelEntities) { |
| populateRemainingFunnelEntityContent(funnelEntity); |
| } |
| return funnelEntities; |
| } |
| |
| /** |
| * Populates the uri for the specified funnel. |
| * |
| * @param funnelEntity funnel |
| * @return funnel |
| */ |
| public FunnelEntity populateRemainingFunnelEntityContent(FunnelEntity funnelEntity) { |
| funnelEntity.setUri(generateResourceUri("funnels", funnelEntity.getId())); |
| return funnelEntity; |
| } |
| |
| /** |
| * Retrieves the specified funnel. |
| * |
| * @param id The id of the funnel to retrieve |
| * @return A funnelEntity. |
| */ |
| @GET |
| @Consumes(MediaType.WILDCARD) |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("{id}") |
| @ApiOperation( |
| value = "Gets a funnel", |
| response = FunnelEntity.class, |
| authorizations = { |
| @Authorization(value = "Read - /funnels/{uuid}") |
| } |
| ) |
| @ApiResponses( |
| value = { |
| @ApiResponse(code = 400, message = "NiFi was unable to complete the request because it was invalid. The request should not be retried without modification."), |
| @ApiResponse(code = 401, message = "Client could not be authenticated."), |
| @ApiResponse(code = 403, message = "Client is not authorized to make this request."), |
| @ApiResponse(code = 404, message = "The specified resource could not be found."), |
| @ApiResponse(code = 409, message = "The request was valid but NiFi was not in the appropriate state to process it. Retrying the same request later may be successful.") |
| } |
| ) |
| public Response getFunnel( |
| @ApiParam( |
| value = "The funnel id.", |
| required = true |
| ) |
| @PathParam("id") final String id) { |
| |
| if (isReplicateRequest()) { |
| return replicate(HttpMethod.GET); |
| } |
| |
| // authorize access |
| serviceFacade.authorizeAccess(lookup -> { |
| final Authorizable funnel = lookup.getFunnel(id); |
| funnel.authorize(authorizer, RequestAction.READ, NiFiUserUtils.getNiFiUser()); |
| }); |
| |
| // get the funnel |
| final FunnelEntity entity = serviceFacade.getFunnel(id); |
| populateRemainingFunnelEntityContent(entity); |
| |
| return generateOkResponse(entity).build(); |
| } |
| |
| /** |
| * Creates a new Funnel. |
| * |
| * @param httpServletRequest request |
| * @param id The id of the funnel to update. |
| * @param requestFunnelEntity A funnelEntity. |
| * @return A funnelEntity. |
| */ |
| @PUT |
| @Consumes(MediaType.APPLICATION_JSON) |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("{id}") |
| @ApiOperation( |
| value = "Updates a funnel", |
| response = FunnelEntity.class, |
| authorizations = { |
| @Authorization(value = "Write - /funnels/{uuid}") |
| } |
| ) |
| @ApiResponses( |
| value = { |
| @ApiResponse(code = 400, message = "NiFi was unable to complete the request because it was invalid. The request should not be retried without modification."), |
| @ApiResponse(code = 401, message = "Client could not be authenticated."), |
| @ApiResponse(code = 403, message = "Client is not authorized to make this request."), |
| @ApiResponse(code = 404, message = "The specified resource could not be found."), |
| @ApiResponse(code = 409, message = "The request was valid but NiFi was not in the appropriate state to process it. Retrying the same request later may be successful.") |
| } |
| ) |
| public Response updateFunnel( |
| @Context final HttpServletRequest httpServletRequest, |
| @ApiParam( |
| value = "The funnel id.", |
| required = true |
| ) |
| @PathParam("id") final String id, |
| @ApiParam( |
| value = "The funnel configuration details.", |
| required = true |
| ) final FunnelEntity requestFunnelEntity) { |
| |
| if (requestFunnelEntity == null || requestFunnelEntity.getComponent() == null) { |
| throw new IllegalArgumentException("Funnel details must be specified."); |
| } |
| |
| if (requestFunnelEntity.getRevision() == null) { |
| throw new IllegalArgumentException("Revision must be specified."); |
| } |
| |
| // ensure the ids are the same |
| final FunnelDTO requestFunnelDTO = requestFunnelEntity.getComponent(); |
| if (!id.equals(requestFunnelDTO.getId())) { |
| throw new IllegalArgumentException(String.format("The funnel id (%s) in the request body does not equal the " |
| + "funnel id of the requested resource (%s).", requestFunnelDTO.getId(), id)); |
| } |
| |
| final PositionDTO proposedPosition = requestFunnelDTO.getPosition(); |
| if (proposedPosition != null) { |
| if (proposedPosition.getX() == null || proposedPosition.getY() == null) { |
| throw new IllegalArgumentException("The x and y coordinate of the proposed position must be specified."); |
| } |
| } |
| |
| if (isReplicateRequest()) { |
| return replicate(HttpMethod.PUT, requestFunnelEntity); |
| } else if (isDisconnectedFromCluster()) { |
| verifyDisconnectedNodeModification(requestFunnelEntity.isDisconnectedNodeAcknowledged()); |
| } |
| |
| // Extract the revision |
| final Revision requestRevision = getRevision(requestFunnelEntity, id); |
| return withWriteLock( |
| serviceFacade, |
| requestFunnelEntity, |
| requestRevision, |
| lookup -> { |
| Authorizable authorizable = lookup.getFunnel(id); |
| authorizable.authorize(authorizer, RequestAction.WRITE, NiFiUserUtils.getNiFiUser()); |
| }, |
| null, |
| (revision, funnelEntity) -> { |
| // update the funnel |
| final FunnelEntity entity = serviceFacade.updateFunnel(revision, funnelEntity.getComponent()); |
| populateRemainingFunnelEntityContent(entity); |
| |
| return generateOkResponse(entity).build(); |
| } |
| ); |
| } |
| |
| /** |
| * Removes the specified funnel. |
| * |
| * @param httpServletRequest request |
| * @param version The revision is used to verify the client is working with |
| * the latest version of the flow. |
| * @param clientId Optional client id. If the client id is not specified, a |
| * new one will be generated. This value (whether specified or generated) is |
| * included in the response. |
| * @param id The id of the funnel to remove. |
| * @return A entity containing the client id and an updated revision. |
| */ |
| @DELETE |
| @Consumes(MediaType.WILDCARD) |
| @Produces(MediaType.APPLICATION_JSON) |
| @Path("{id}") |
| @ApiOperation( |
| value = "Deletes a funnel", |
| response = FunnelEntity.class, |
| authorizations = { |
| @Authorization(value = "Write - /funnels/{uuid}"), |
| @Authorization(value = "Write - Parent Process Group - /process-groups/{uuid}") |
| } |
| ) |
| @ApiResponses( |
| value = { |
| @ApiResponse(code = 400, message = "NiFi was unable to complete the request because it was invalid. The request should not be retried without modification."), |
| @ApiResponse(code = 401, message = "Client could not be authenticated."), |
| @ApiResponse(code = 403, message = "Client is not authorized to make this request."), |
| @ApiResponse(code = 404, message = "The specified resource could not be found."), |
| @ApiResponse(code = 409, message = "The request was valid but NiFi was not in the appropriate state to process it. Retrying the same request later may be successful.") |
| } |
| ) |
| public Response removeFunnel( |
| @Context final HttpServletRequest httpServletRequest, |
| @ApiParam( |
| value = "The revision is used to verify the client is working with the latest version of the flow.", |
| required = false |
| ) |
| @QueryParam(VERSION) final LongParameter version, |
| @ApiParam( |
| value = "If the client id is not specified, new one will be generated. This value (whether specified or generated) is included in the response.", |
| required = false |
| ) |
| @QueryParam(CLIENT_ID) @DefaultValue(StringUtils.EMPTY) final ClientIdParameter clientId, |
| @ApiParam( |
| value = "Acknowledges that this node is disconnected to allow for mutable requests to proceed.", |
| required = false |
| ) |
| @QueryParam(DISCONNECTED_NODE_ACKNOWLEDGED) @DefaultValue("false") final Boolean disconnectedNodeAcknowledged, |
| @ApiParam( |
| value = "The funnel id.", |
| required = true |
| ) |
| @PathParam("id") final String id) { |
| |
| if (isReplicateRequest()) { |
| return replicate(HttpMethod.DELETE); |
| } else if (isDisconnectedFromCluster()) { |
| verifyDisconnectedNodeModification(disconnectedNodeAcknowledged); |
| } |
| |
| final FunnelEntity requestFunnelEntity = new FunnelEntity(); |
| requestFunnelEntity.setId(id); |
| |
| // handle expects request (usually from the cluster manager) |
| final Revision requestRevision = new Revision(version == null ? null : version.getLong(), clientId.getClientId(), id); |
| return withWriteLock( |
| serviceFacade, |
| requestFunnelEntity, |
| requestRevision, |
| lookup -> { |
| final Authorizable funnel = lookup.getFunnel(id); |
| |
| // ensure write permission to the funnel |
| funnel.authorize(authorizer, RequestAction.WRITE, NiFiUserUtils.getNiFiUser()); |
| |
| // ensure write permission to the parent process group |
| funnel.getParentAuthorizable().authorize(authorizer, RequestAction.WRITE, NiFiUserUtils.getNiFiUser()); |
| }, |
| () -> serviceFacade.verifyDeleteFunnel(id), |
| (revision, funnelEntity) -> { |
| // delete the specified funnel |
| final FunnelEntity entity = serviceFacade.deleteFunnel(revision, funnelEntity.getId()); |
| return generateOkResponse(entity).build(); |
| } |
| ); |
| } |
| |
| // setters |
| |
| public void setServiceFacade(NiFiServiceFacade serviceFacade) { |
| this.serviceFacade = serviceFacade; |
| } |
| |
| public void setAuthorizer(Authorizer authorizer) { |
| this.authorizer = authorizer; |
| } |
| } |