Java tutorial
/* * ProActive Parallel Suite(TM): * The Open Source library for parallel and distributed * Workflows & Scheduling, Orchestration, Cloud Automation * and Big Data Analysis on Enterprise Grids & Clouds. * * Copyright (c) 2007 - 2017 ActiveEon * Contact: contact@activeeon.com * * This library is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation: version 3 of * the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * If needed, contact us to obtain a release under GPL Version 2 or 3 * or a different license than the AGPL. */ package org.ow2.proactive.procci.rest; import java.util.List; import java.util.Optional; import org.ow2.proactive.procci.model.exception.ClientException; import org.ow2.proactive.procci.model.exception.ServerException; import org.ow2.proactive.procci.model.occi.infrastructure.Compute; import org.ow2.proactive.procci.model.occi.infrastructure.ComputeBuilder; import org.ow2.proactive.procci.model.occi.metamodel.Entity; import org.ow2.proactive.procci.model.occi.metamodel.Resource; import org.ow2.proactive.procci.model.occi.metamodel.rendering.EntitiesRendering; import org.ow2.proactive.procci.model.occi.metamodel.rendering.EntityRendering; import org.ow2.proactive.procci.model.occi.metamodel.rendering.ResourceRendering; import org.ow2.proactive.procci.service.occi.InstanceService; import org.ow2.proactive.procci.service.occi.MixinService; import org.ow2.proactive.procci.service.transformer.TransformerManager; import org.ow2.proactive.procci.service.transformer.TransformerType; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; /** * Implement CRUD methods for REST service */ @RestController @RequestMapping(value = PathConstant.COMPUTE_PATH) public class ComputeRest { private final Logger logger = LoggerFactory.getLogger(ComputeRest.class); @Autowired private MixinService mixinService; @Autowired private InstanceService instanceService; @Autowired private TransformerManager transformerManager; //-------------------Retrieve All Computes-------------------------------------------------------- @RequestMapping(method = RequestMethod.GET) public ResponseEntity<EntitiesRendering> listAllComputes() { logger.debug("Get all Compute instances"); try { List<EntityRendering> entityRenderings = instanceService.getInstancesRendering(mixinService); return new ResponseEntity<>(new EntitiesRendering.Builder().addEntities(entityRenderings).build(), HttpStatus.OK); } catch (ClientException e) { logger.error(this.getClass().getName(), e); return new ResponseEntity(e.getJsonError(), HttpStatus.BAD_REQUEST); } catch (ServerException e) { logger.error(this.getClass().getName(), e); return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR); } } //-------------------Retrieve Single Compute-------------------------------------------------------- @RequestMapping(value = "{id}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE) public ResponseEntity<ResourceRendering> getCompute(@PathVariable("id") String id) { logger.debug("Get Compute "); try { Optional<Entity> compute = instanceService.getEntity(id, transformerManager.getTransformerProvider(TransformerType.COMPUTE)); if (!compute.isPresent()) { return new ResponseEntity(HttpStatus.NOT_FOUND); } else { return new ResponseEntity<>(((Compute) compute.get()).getRendering(), HttpStatus.OK); } } catch (ClientException e) { logger.error(this.getClass().getName(), e); return new ResponseEntity(e.getJsonError(), HttpStatus.BAD_REQUEST); } catch (ServerException e) { logger.error(this.getClass().getName(), e); return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR); } } //-------------------Create a Compute-------------------------------------------------------- @RequestMapping(method = RequestMethod.POST) public ResponseEntity<ResourceRendering> createCompute(@RequestBody ResourceRendering computeRendering) throws InterruptedException, NumberFormatException { logger.debug("Creating Compute " + computeRendering.toString()); try { computeRendering.checkAttributes(Compute.getAttributes(), "Compute", mixinService); Resource response = instanceService.create(new ComputeBuilder(mixinService, computeRendering).build(), transformerManager.getTransformerProvider(TransformerType.COMPUTE), mixinService); return new ResponseEntity<>(response.getRendering(), HttpStatus.CREATED); } catch (ClientException e) { logger.error(this.getClass().getName(), e); return new ResponseEntity(e.getJsonError(), HttpStatus.BAD_REQUEST); } catch (ServerException e) { logger.error(this.getClass().getName(), e); return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR); } } }