gerrit.onap Code Review - sdc/sdc-workflow-designer.git/blob

   1 /**
   2  * Copyright (c) 2017-2018 ZTE Corporation.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the Apache License, Version 2.0
   5  * and the Eclipse Public License v1.0 which both accompany this distribution,
   6  * and are available at http://www.eclipse.org/legal/epl-v10.html
   7  * and http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Contributors:
  10  *     ZTE - initial API and implementation and/or initial documentation
  11  */
  12
  13 package org.onap.sdc.workflowdesigner.resources;
  14
  15 import java.io.IOException;
  16 import java.net.URI;
  17 import java.nio.file.Paths;
  18 import java.util.UUID;
  19
  20 import javax.ws.rs.Consumes;
  21 import javax.ws.rs.GET;
  22 import javax.ws.rs.PUT;
  23 import javax.ws.rs.Path;
  24 import javax.ws.rs.PathParam;
  25 import javax.ws.rs.Produces;
  26 import javax.ws.rs.core.MediaType;
  27 import javax.ws.rs.core.Response;
  28
  29 import org.eclipse.jetty.http.HttpStatus;
  30 import org.onap.sdc.workflowdesigner.common.WorkflowDesignerException;
  31 import org.onap.sdc.workflowdesigner.externalservice.sdc.SDCServiceProxy;
  32 import org.onap.sdc.workflowdesigner.externalservice.sdc.entity.WorkflowArtifactInfo;
  33 import org.onap.sdc.workflowdesigner.model.Process;
  34 import org.onap.sdc.workflowdesigner.parser.Bpmn4ToscaJsonParser;
  35 import org.onap.sdc.workflowdesigner.resources.entity.WorkflowInfo;
  36 import org.onap.sdc.workflowdesigner.utils.FileCommonUtils;
  37 import org.onap.sdc.workflowdesigner.utils.JsonUtils;
  38 import org.onap.sdc.workflowdesigner.utils.RestUtils;
  39 import org.onap.sdc.workflowdesigner.writer.BpmnPlanArtefactWriter;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 import com.codahale.metrics.annotation.Timed;
  44
  45 import io.swagger.annotations.Api;
  46 import io.swagger.annotations.ApiOperation;
  47 import io.swagger.annotations.ApiParam;
  48 import io.swagger.annotations.ApiResponse;
  49 import io.swagger.annotations.ApiResponses;
  50
  51 /**
  52  * Workflow Modeler Resource.
  53  *
  54  */
  55 @Path("/models")
  56 @Api(tags = {"Workflow Modeler"})
  57 public class WorkflowModelerResource {
  58   private static final Logger logger = LoggerFactory.getLogger(WorkflowModelerResource.class);
  59
  60   private static final String WORKFLOW_JSON_TEMP_FILE_NAME = "temp_workflow.json";
  61   private static final String WORKFLOW_XML_TEMP_FILE_NAME = "temp_workflow.xml";
  62
  63
  64   /**
  65    *
  66    * @return Response
  67    */
  68   @Path("/{id}")
  69   @GET
  70   @Consumes(MediaType.APPLICATION_JSON)
  71   @Produces(MediaType.APPLICATION_JSON)
  72   @ApiOperation(value = "Get Model", response = String.class)
  73   @ApiResponses(value = {
  74       @ApiResponse(code = HttpStatus.NOT_FOUND_404, message = "microservice not found",
  75           response = String.class),
  76       @ApiResponse(code = HttpStatus.UNSUPPORTED_MEDIA_TYPE_415,
  77           message = "Unprocessable MicroServiceInfo Entity ", response = String.class),
  78       @ApiResponse(code = HttpStatus.INTERNAL_SERVER_ERROR_500, message = "server internal error",
  79           response = String.class)})
  80   @Timed
  81   public Response getModel(@ApiParam(value = "id") @PathParam("id") String id) {
  82     try {
  83       String json = FileCommonUtils.readString(WORKFLOW_JSON_TEMP_FILE_NAME);
  84       return Response.status(Response.Status.OK).entity(json).build();
  85     } catch (IOException e) {
  86       logger.error("get workflow failed.", e);
  87       throw RestUtils.newInternalServerErrorException(e);
  88     }
  89   }
  90
  91
  92
  93   @Path("/{id}")
  94   @PUT
  95   @Consumes(MediaType.APPLICATION_JSON)
  96   @Produces(MediaType.APPLICATION_JSON)
  97   @ApiOperation(value = "Save Model", response = String.class)
  98   @ApiResponses(value = {
  99       @ApiResponse(code = HttpStatus.NOT_FOUND_404, message = "microservice not found",
 100           response = String.class),
 101       @ApiResponse(code = HttpStatus.UNSUPPORTED_MEDIA_TYPE_415,
 102           message = "Unprocessable MicroServiceInfo Entity ", response = String.class),
 103       @ApiResponse(code = HttpStatus.INTERNAL_SERVER_ERROR_500, message = "server internal error",
 104           response = String.class)})
 105   @Timed
 106   public Response saveModel(@ApiParam(value = "id") @PathParam("id") String id,
 107       @ApiParam(value = "Model Content", required = true) String json) {
 108     try {
 109       FileCommonUtils.write(WORKFLOW_JSON_TEMP_FILE_NAME, json);
 110
 111       URI srcUri = Paths.get(".", WORKFLOW_JSON_TEMP_FILE_NAME).toUri();
 112       String processName = "plan_" + UUID.randomUUID().toString();
 113       String bpmn = buildBPMN(srcUri, processName);
 114
 115       save2SDC(json, bpmn);
 116       FileCommonUtils.write(WORKFLOW_XML_TEMP_FILE_NAME, bpmn);
 117
 118       return Response.status(Response.Status.OK).entity(json).build();
 119     } catch (IOException e) {
 120       logger.error("save workflow failed.", e);
 121       throw RestUtils.newInternalServerErrorException(e);
 122     } catch (Exception e) {
 123       logger.error("convert workflow from json to bpmn failed.", e);
 124       throw RestUtils.newInternalServerErrorException(e);
 125     }
 126   }
 127
 128
 129
 130   /**
 131    * @param json
 132    * @param bpmn
 133    * @throws WorkflowDesignerException
 134    */
 135   private void save2SDC(String json, String bpmn) throws WorkflowDesignerException {
 136     WorkflowInfo workflowInfo = JsonUtils.fromJson(json, WorkflowInfo.class);
 137     WorkflowArtifactInfo workflowArtifactInfo =
 138         new WorkflowArtifactInfo(workflowInfo.getName(), workflowInfo.getDescription(), bpmn);
 139
 140     SDCServiceProxy sdcProxy = new SDCServiceProxy();
 141     sdcProxy.saveWorkflowArtifact(workflowInfo.getUuid(), workflowInfo.getOperationId(),
 142         workflowInfo.getId(), workflowArtifactInfo);
 143   }
 144
 145   /**
 146    *
 147    * @param srcUri
 148    * @param processName
 149    * @return
 150    * @throws IOException
 151    * @throws Exception
 152    */
 153   private String buildBPMN(URI srcUri, String processName) throws IOException, Exception {
 154     Bpmn4ToscaJsonParser parser = new Bpmn4ToscaJsonParser();
 155     Process process = parser.parse(processName, srcUri);
 156
 157     // transform bpmn template
 158     BpmnPlanArtefactWriter writer = new BpmnPlanArtefactWriter(process);
 159     return writer.completePlanTemplate();
 160   }
 161
 162 }