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
  19 package org.onap.sdnc.apps.pomba.servicedecomposition.service.rs;
  20
  21 import static org.onap.sdnc.apps.pomba.servicedecomposition.exception.DiscoveryException.Error.*;
  22
  23 import java.util.UUID;
  24 import javax.annotation.Resource;
  25 import javax.servlet.http.HttpServletRequest;
  26 import javax.ws.rs.core.HttpHeaders;
  27 import javax.ws.rs.core.Response;
  28 import javax.ws.rs.core.Response.ResponseBuilder;
  29 import javax.ws.rs.core.Response.Status;
  30 import org.onap.logging.ref.slf4j.ONAPLogAdapter;
  31 import org.onap.logging.ref.slf4j.ONAPLogConstants;
  32 import org.onap.logging.ref.slf4j.ONAPLogConstants.ResponseStatus;
  33 import org.onap.sdnc.apps.pomba.servicedecomposition.exception.DiscoveryException;
  34 import org.onap.sdnc.apps.pomba.servicedecomposition.service.SpringService;
  35 import org.onap.sdnc.apps.pomba.servicedecomposition.util.RestUtil;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38 import org.springframework.beans.factory.annotation.Autowired;
  39 import org.springframework.stereotype.Component;
  40
  41 @Component
  42 public class RestServiceImpl implements RestService {
  43     private static Logger log = LoggerFactory.getLogger(RestServiceImpl.class);
  44     private static final String EMPTY_JSON_OBJECT = "{}";
  45
  46     @Autowired
  47     private SpringService service;
  48
  49     @Resource(name="basicAuthHeader")
  50     private String basicAuthHeader;
  51
  52     public RestServiceImpl() {}
  53
  54     @Override
  55     public Response getContext(HttpServletRequest request,
  56                                String authorization,
  57                                String fromAppId,
  58                                String transactionId,
  59                                String serviceInstanceId) {
  60
  61         ONAPLogAdapter adapter = new ONAPLogAdapter(log);
  62         adapter.getServiceDescriptor().setServiceName(SERVICE_NAME);
  63         adapter.entering(request);
  64         try {
  65             if (authorization == null || !this.basicAuthHeader.equals(authorization)) {
  66                 throw new DiscoveryException(UNAUTHORIZED, Status.UNAUTHORIZED);
  67             }
  68
  69             // Do some validation on Http headers and URL parameters
  70             if ((fromAppId == null) || fromAppId.trim().isEmpty()) {
  71                 throw new DiscoveryException(MISSING_HEADER, Status.BAD_REQUEST, ONAPLogConstants.Headers.PARTNER_NAME);
  72             }
  73             if (transactionId == null || transactionId.isEmpty()) {
  74                 transactionId = UUID.randomUUID().toString();
  75                 log.debug(ONAPLogConstants.Headers.REQUEST_ID+ " is missing; using newly generated value: " + transactionId);
  76             }
  77             RestUtil.validateURL(serviceInstanceId);
  78             String context = service.decomposeService(fromAppId, transactionId, serviceInstanceId, adapter);
  79
  80             if (context == null) {
  81                 context = EMPTY_JSON_OBJECT;
  82             }
  83             adapter.getResponseDescriptor().setResponseStatus(ResponseStatus.COMPLETED);
  84             return Response.ok().entity(context).build();
  85
  86         } catch (DiscoveryException x) {
  87             adapter.getResponseDescriptor()
  88                     .setResponseCode(x.getResponseCode())
  89                     .setResponseStatus(ResponseStatus.ERROR);
  90
  91             ResponseBuilder builder = Response.status(x.getHttpStatus()).entity(x.getMessage());
  92             if (authorization == null) {
  93                 builder.header(HttpHeaders.WWW_AUTHENTICATE, "Basic realm=\""+ SERVICE_NAME + "\"");
  94             }
  95             return builder.build();
  96
  97         } catch (Exception e) {
  98             adapter.getResponseDescriptor()
  99                     .setResponseCode(GENERAL_FAILURE.getResponseCode())
 100                     .setResponseStatus(ResponseStatus.ERROR);
 101
 102             return Response.status(Status.INTERNAL_SERVER_ERROR).entity(e.getMessage()).build();
 103         } finally {
 104             adapter.exiting();
 105         }
 106     }
 107 }