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/**
 * Copyright 2017 ZTE Corporation.
 *
 * 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.onap.workflow.resources;

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 java.io.InputStream;

import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.eclipse.jetty.http.HttpStatus;
import org.glassfish.jersey.media.multipart.FormDataContentDisposition;
import org.glassfish.jersey.media.multipart.FormDataParam;
import org.jvnet.hk2.annotations.Service;
import org.onap.workflow.common.RestResponse;
import org.onap.workflow.entity.DeployBpmnFileResponse;
import org.onap.workflow.entity.StartProcessRequest;
import org.onap.workflow.wrapper.WorkflowInstanceWrapper;

@Path("/")
@Api(tags = {"Workflow Resource"})
@Produces(MediaType.APPLICATION_JSON)
@Service
public class WorkflowResource {
  @POST
  @Path("/package")
  @Consumes({"multipart/form-data"})
  @Produces({"application/json"})
  @ApiOperation(value = "deploy bpmn file")
  @ApiResponses(value = {
      @ApiResponse(code = HttpStatus.NOT_FOUND_404, message = "microservice not found",
          response = DeployBpmnFileResponse.class),
      @ApiResponse(code = HttpStatus.UNSUPPORTED_MEDIA_TYPE_415,
          message = "Unprocessable MicroServiceInfo Entity ", response = String.class),
      @ApiResponse(code = HttpStatus.INTERNAL_SERVER_ERROR_500, message = "error")})
  public Response deployBpmnFile(
      @ApiParam(value = "file inputstream",
          required = true) @FormDataParam("file") InputStream fileInputStream,
      @ApiParam(value = "file detail",
          required = false) @FormDataParam("file") FormDataContentDisposition fileDetail) {
    return WorkflowInstanceWrapper.getInstance().deployBpmnFile(fileDetail.getFileName(),
        fileInputStream, null);
  }

  @Path("/package/{deployId}")
  @DELETE
  @Consumes(MediaType.APPLICATION_JSON)
  @Produces(MediaType.APPLICATION_JSON)
  @ApiOperation(value = "undeploy bpmn file")
  @ApiResponses(value = {
      @ApiResponse(code = HttpStatus.NOT_FOUND_404, message = "microservice not found",
          response = DeployBpmnFileResponse.class),
      @ApiResponse(code = HttpStatus.UNSUPPORTED_MEDIA_TYPE_415,
          message = "Unprocessable MicroServiceInfo Entity ", response = String.class),
      @ApiResponse(code = HttpStatus.INTERNAL_SERVER_ERROR_500, message = "error")})
  public RestResponse undeployBpmnFile(
      @ApiParam("deployId") @PathParam("deployId") String deployId) {
    return WorkflowInstanceWrapper.getInstance().undeployBpmnFile(deployId);
  }

  @Path("process/instance")
  @POST
  @Consumes(MediaType.APPLICATION_JSON)
  @Produces(MediaType.APPLICATION_JSON)
  @ApiOperation(value = "package process")
  @ApiResponses(value = {
      @ApiResponse(code = HttpStatus.NOT_FOUND_404, message = "microservice not found",
          response = DeployBpmnFileResponse.class),
      @ApiResponse(code = HttpStatus.UNSUPPORTED_MEDIA_TYPE_415,
          message = "Unprocessable MicroServiceInfo Entity ", response = String.class),
      @ApiResponse(code = HttpStatus.INTERNAL_SERVER_ERROR_500, message = "error")})
  public Response startProcess(
      @ApiParam(value = "request", required = false) StartProcessRequest request) {
    return WorkflowInstanceWrapper.getInstance().startProcess(request);
  }
}