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 org.ow2.proactive.procci.model.exception.ClientException; import org.ow2.proactive.procci.model.exception.ServerException; import org.ow2.proactive.procci.model.occi.metamodel.Resource; import org.ow2.proactive.procci.model.occi.metamodel.rendering.ResourceRendering; import org.ow2.proactive.procci.model.occi.platform.bigdata.Swarm; import org.ow2.proactive.procci.model.occi.platform.bigdata.SwarmBuilder; 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.SWARM_PATH) public class SwarmRest { private final Logger logger = LoggerFactory.getLogger(ComputeRest.class); @Autowired private MixinService mixinService; @Autowired private InstanceService instanceService; @Autowired private TransformerManager transformerManager; //-------------------Retrieve a Swarm instance-------------------------------------------------------- @RequestMapping(value = "{id}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE) public ResponseEntity<ResourceRendering> getSwarm(@PathVariable("id") String id) { logger.debug("Get Swarm " + id); try { return instanceService.getEntity(id, transformerManager.getTransformerProvider(TransformerType.SWARM)) .map(swar -> new ResponseEntity<>(((Swarm) swar).getRendering(), HttpStatus.OK)) .orElse(new ResponseEntity(HttpStatus.NOT_FOUND)); } 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); } } //-------------------Deploy Swarm-------------------------------------------------------- @RequestMapping(method = RequestMethod.POST) public ResponseEntity<ResourceRendering> createSwarm(@RequestBody ResourceRendering swarmRendering) { logger.debug("Deploy a swarm " + swarmRendering.toString()); try { swarmRendering.checkAttributes(Swarm.getAttributes(), "Compute", mixinService); SwarmBuilder swarmBuilder = new SwarmBuilder(mixinService, swarmRendering); Resource response = instanceService.create(swarmBuilder.build(), transformerManager.getTransformerProvider(TransformerType.SWARM), 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); } } }