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/*
* ============LICENSE_START===================================================
* Copyright (c) 2018 Amdocs
* ============================================================================
* 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.
* ============LICENSE_END=====================================================
*/
package org.onap.sdnc.apps.pomba.servicedecomposition.service.rs;
import static org.onap.sdnc.apps.pomba.servicedecomposition.exception.DiscoveryException.Error.*;
import java.util.UUID;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.core.Response.Status;
import org.onap.logging.ref.slf4j.ONAPLogAdapter;
import org.onap.logging.ref.slf4j.ONAPLogConstants;
import org.onap.logging.ref.slf4j.ONAPLogConstants.ResponseStatus;
import org.onap.sdnc.apps.pomba.servicedecomposition.exception.DiscoveryException;
import org.onap.sdnc.apps.pomba.servicedecomposition.service.SpringService;
import org.onap.sdnc.apps.pomba.servicedecomposition.util.RestUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class RestServiceImpl implements RestService {
private static Logger log = LoggerFactory.getLogger(RestServiceImpl.class);
private static final String EMPTY_JSON_OBJECT = "{}";
@Autowired
private SpringService service;
@Resource(name="basicAuthHeader")
private String basicAuthHeader;
public RestServiceImpl() {}
@Override
public Response getContext(HttpServletRequest request,
String authorization,
String fromAppId,
String transactionId,
String serviceInstanceId) {
ONAPLogAdapter adapter = new ONAPLogAdapter(log);
adapter.getServiceDescriptor().setServiceName(SERVICE_NAME);
adapter.entering(request);
try {
if (authorization == null || !this.basicAuthHeader.equals(authorization)) {
throw new DiscoveryException(UNAUTHORIZED, Status.UNAUTHORIZED);
}
// Do some validation on Http headers and URL parameters
if ((fromAppId == null) || fromAppId.trim().isEmpty()) {
throw new DiscoveryException(MISSING_HEADER, Status.BAD_REQUEST, ONAPLogConstants.Headers.PARTNER_NAME);
}
if (transactionId == null || transactionId.isEmpty()) {
transactionId = UUID.randomUUID().toString();
log.debug(ONAPLogConstants.Headers.REQUEST_ID+ " is missing; using newly generated value: " + transactionId);
}
RestUtil.validateURL(serviceInstanceId);
String context = service.decomposeService(fromAppId, transactionId, serviceInstanceId, adapter);
if (context == null) {
context = EMPTY_JSON_OBJECT;
}
adapter.getResponseDescriptor().setResponseStatus(ResponseStatus.COMPLETED);
return Response.ok().entity(context).build();
} catch (DiscoveryException x) {
adapter.getResponseDescriptor()
.setResponseCode(x.getResponseCode())
.setResponseStatus(ResponseStatus.ERROR);
ResponseBuilder builder = Response.status(x.getHttpStatus()).entity(x.getMessage());
if (authorization == null) {
builder.header(HttpHeaders.WWW_AUTHENTICATE, "Basic realm=\""+ SERVICE_NAME + "\"");
}
return builder.build();
} catch (Exception e) {
adapter.getResponseDescriptor()
.setResponseCode(GENERAL_FAILURE.getResponseCode())
.setResponseStatus(ResponseStatus.ERROR);
return Response.status(Status.INTERNAL_SERVER_ERROR).entity(e.getMessage()).build();
} finally {
adapter.exiting();
}
}
}
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