if onlineDisk != nil && onlineDisk.IsOnline() {
			online++
		}
	}
	return online
}

// CopyObject - copy object source object to destination object.
// if source object and destination object are same we only
// update metadata.
func (er erasureObjects) CopyObject(ctx context.Context, srcBucket, srcObject, dstBucket, dstObject string, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (oi ObjectInfo, err error) {

		}

		// MakeBucket requests should be handled at current endpoint
		if r.Method == http.MethodPut && bucket != "" && object == "" && r.URL.RawQuery == "" {
			h.ServeHTTP(w, r)
			return
		}

		// CopyObject requests should be handled at current endpoint as path style
		// requests have target bucket and object in URI and source details are in
		// header fields

			Queries("lambdaArn", "{lambdaArn:.*}")
		// GetObject
		router.Methods(http.MethodGet).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.GetObjectHandler, traceHdrsS3HFlag))
		// CopyObject
		router.Methods(http.MethodPut).Path("/{object:.+}").
			HeadersRegexp(xhttp.AmzCopySource, ".*?(\\/|%2F).*?").
			HandlerFunc(s3APIMiddleware(api.CopyObjectHandler))
		// PutObjectRetention

			// for users who might have used master
			// branch
			xlMeta.data.remove(versionID, dataDir)

			// We need to attempt delete "dataDir" on the disk
			// due to a CopyObject() bug where it might have
			// inlined the data incorrectly, to avoid a situation
			// where we potentially leave "DataDir"
			filePath := pathJoin(volumeDir, path, dataDir)

}

// The []journal contains all the different versions of the object.
//
// This array can have 3 kinds of objects:
//
// ``object``: If the object is uploaded the usual way: putobject, multipart-put, copyobject
//
// ``delete``: This is the delete-marker
//
// ``legacyObject``: This is the legacy object in xlV1 format, preserved until its overwritten
//

		case "DeleteObject":
			// Register Delete Object handler.
			bucket.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(api.DeleteObjectHandler)
		case "CopyObject":
			// Register Copy Object  handler.
			bucket.Methods(http.MethodPut).Path("/{object:.+}").HeadersRegexp("X-Amz-Copy-Source", ".*?(\\/|%2F).*?").HandlerFunc(api.CopyObjectHandler)
		case "PutBucketPolicy":

			ondiskTimestamp, err := time.Parse(time.RFC3339, lholdTmStr)
			if err == nil {
				dstOpts.Internal.LegalholdTimestamp = ondiskTimestamp
			}
		}
		if _, rinfo.Err = c.CopyObject(ctx, tgt.Bucket, object, tgt.Bucket, object, getCopyObjMetadata(objInfo, tgt.StorageClass), srcOpts, dstOpts); rinfo.Err != nil {
			rinfo.ReplicationStatus = replication.Failed

func TestAPICopyObjectHandler(t *testing.T) {
	defer DetectTestLeak(t)()
	ExecExtendedObjectLayerAPITest(t, testAPICopyObjectHandler, []string{"CopyObject"})
}

func testAPICopyObjectHandler(obj ObjectLayer, instanceType, bucketName string, apiRouter http.Handler,
	credentials auth.Credentials, t *testing.T,
) {