gerrit.onap Code Review - sdnc/apps.git/blob

   1 /*
   2  * ============LICENSE_START===================================================
   3  * Copyright (c) 2018 Amdocs
   4  * ============================================================================
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  * ============LICENSE_END=====================================================
  17  */
  18 package org.onap.sdnc.apps.pomba.servicedecomposition.service.rs;
  19
  20 import static org.onap.sdnc.apps.pomba.servicedecomposition.exception.DiscoveryException.Error.*;
  21
  22 import java.util.UUID;
  23 import javax.annotation.Resource;
  24 import javax.servlet.http.HttpServletRequest;
  25 import javax.ws.rs.core.HttpHeaders;
  26 import javax.ws.rs.core.Response;
  27 import javax.ws.rs.core.Response.ResponseBuilder;
  28 import javax.ws.rs.core.Response.Status;
  29 import org.onap.logging.ref.slf4j.ONAPLogAdapter;
  30 import org.onap.logging.ref.slf4j.ONAPLogConstants;
  31 import org.onap.logging.ref.slf4j.ONAPLogConstants.ResponseStatus;
  32 import org.onap.sdnc.apps.pomba.servicedecomposition.exception.DiscoveryException;
  33 import org.onap.sdnc.apps.pomba.servicedecomposition.service.SpringService;
  34 import org.onap.sdnc.apps.pomba.servicedecomposition.util.RestUtil;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37 import org.springframework.beans.factory.annotation.Autowired;
  38 import org.springframework.stereotype.Component;
  39
  40 @Component
  41 public class RestServiceImpl implements RestService {
  42     private static Logger log = LoggerFactory.getLogger(RestServiceImpl.class);
  43     private static final String EMPTY_JSON_OBJECT = "{}";
  44
  45     @Autowired
  46     private SpringService service;
  47
  48     @Resource(name="basicAuthHeader")
  49     private String basicAuthHeader;
  50
  51     public RestServiceImpl() {}
  52
  53     @Override
  54     public Response getContext(HttpServletRequest request,
  55                                String authorization,
  56                                String fromAppId,
  57                                String transactionId,
  58                                String serviceInstanceId) {
  59
  60         ONAPLogAdapter adapter = new ONAPLogAdapter(log);
  61         adapter.getServiceDescriptor().setServiceName(SERVICE_NAME);
  62         adapter.entering(request);
  63         try {
  64             if (authorization == null || !this.basicAuthHeader.equals(authorization)) {
  65                 throw new DiscoveryException(UNAUTHORIZED, Status.UNAUTHORIZED);
  66             }
  67
  68             // Do some validation on Http headers and URL parameters
  69             if ((fromAppId == null) || fromAppId.trim().isEmpty()) {
  70                 throw new DiscoveryException(MISSING_HEADER, Status.BAD_REQUEST, ONAPLogConstants.Headers.PARTNER_NAME);
  71             }
  72             if (transactionId == null || transactionId.isEmpty()) {
  73                 transactionId = UUID.randomUUID().toString();
  74                 log.debug(ONAPLogConstants.Headers.REQUEST_ID+ " is missing; using newly generated value: " + transactionId);
  75             }
  76             RestUtil.validateURL(serviceInstanceId);
  77             String context = service.decomposeService(fromAppId, transactionId, serviceInstanceId, adapter);
  78
  79             if (context == null) {
  80                 context = EMPTY_JSON_OBJECT;
  81             }
  82             adapter.getResponseDescriptor().setResponseStatus(ResponseStatus.COMPLETED);
  83             return Response.ok().entity(context).build();
  84
  85         } catch (DiscoveryException x) {
  86             adapter.getResponseDescriptor()
  87                     .setResponseCode(x.getResponseCode())
  88                     .setResponseStatus(ResponseStatus.ERROR);
  89
  90             ResponseBuilder builder = Response.status(x.getHttpStatus()).entity(x.getMessage());
  91             if (authorization == null) {
  92                 builder.header(HttpHeaders.WWW_AUTHENTICATE, "Basic realm=\""+ SERVICE_NAME + "\"");
  93             }
  94             return builder.build();
  95
  96         } catch (Exception e) {
  97             adapter.getResponseDescriptor()
  98                     .setResponseCode(GENERAL_FAILURE.getResponseCode())
  99                     .setResponseStatus(ResponseStatus.ERROR);
 100
 101             return Response.status(Status.INTERNAL_SERVER_ERROR).entity(e.getMessage()).build();
 102         } finally {
 103             adapter.exiting();
 104         }
 105
 106     }
 107
 108 }