internal void Populate()

in sdk/Domain/CopyObjectRequest.cs [112:163]
42 lines of code
9 McCabe index (conditional complexity)

        internal void Populate(IDictionary<string, string> headers)
        {
            var copyHeaderValue = OssUtils.BuildCopyObjectSource(SourceBucketName, SourceKey);
            if (!string.IsNullOrEmpty(SourceVersionId))
            {
                copyHeaderValue = copyHeaderValue + "?versionId=" + SourceVersionId;
            }
            headers.Add(OssHeaders.CopyObjectSource, copyHeaderValue);

            if (ModifiedSinceConstraint != null)
            {
                headers.Add(OssHeaders.CopySourceIfModifedSince, 
                    DateUtils.FormatRfc822Date(ModifiedSinceConstraint.Value));
            }

            if (UnmodifiedSinceConstraint != null)
            {
                headers.Add(OssHeaders.CopySourceIfUnmodifiedSince, 
                    DateUtils.FormatRfc822Date(UnmodifiedSinceConstraint.Value));
            }

            if (_matchingETagConstraints.Count > 0)
            {
                headers.Add(OssHeaders.CopySourceIfMatch, OssUtils.JoinETag(_matchingETagConstraints));
            }

            if (_nonmatchingETagConstraints.Count > 0)
            {
                headers.Add(OssHeaders.CopySourceIfNoneMatch, 
                    OssUtils.JoinETag(_nonmatchingETagConstraints));
            }
            
            if (NewObjectMetadata != null)
            {
                headers.Add(OssHeaders.CopyObjectMetaDataDirective, "REPLACE");
                NewObjectMetadata.Populate(headers);
            }

            // Remove Content-Length header, ObjectMeta#Populate will create 
            // ContentLength header, but we do not need it for the request body is empty.
            headers.Remove(HttpHeaders.ContentLength);

            if (RequestPayer == RequestPayer.Requester)
            {
                headers.Add(OssHeaders.OssRequestPayer, RequestPayer.Requester.ToString().ToLowerInvariant());
            }

            if (TrafficLimit > 0)
            {
                headers.Add(OssHeaders.OssTrafficLimit, TrafficLimit.ToString());
            }
        }