mirror of https://github.com/milvus-io/milvus.git
111 lines
2.5 KiB
Go
111 lines
2.5 KiB
Go
package reader
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import (
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"context"
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"log"
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"github.com/zilliztech/milvus-distributed/internal/msgstream"
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"github.com/zilliztech/milvus-distributed/internal/util/flowgraph"
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)
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type dataSyncService struct {
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ctx context.Context
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pulsarURL string
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fg *flowgraph.TimeTickedFlowGraph
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// input streams
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dmStream *msgstream.MsgStream
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// ddStream *msgstream.MsgStream
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// k2sStream *msgstream.MsgStream
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node *QueryNode
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}
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func newDataSyncService(ctx context.Context, node *QueryNode, pulsarURL string) *dataSyncService {
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return &dataSyncService{
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ctx: ctx,
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pulsarURL: pulsarURL,
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fg: nil,
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dmStream: nil,
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node: node,
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}
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}
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func (dsService *dataSyncService) start() {
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dsService.initNodes()
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dsService.fg.Start()
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}
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func (dsService *dataSyncService) close() {
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dsService.fg.Close()
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(*dsService.dmStream).Close()
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}
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func (dsService *dataSyncService) initNodes() {
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// TODO: add delete pipeline support
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dsService.fg = flowgraph.NewTimeTickedFlowGraph(dsService.ctx)
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var dmStreamNode Node = newDmInputNode(dsService.ctx, dsService.pulsarURL)
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var filterDmNode Node = newFilteredDmNode()
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var insertNode Node = newInsertNode(dsService.node.container)
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var serviceTimeNode Node = newServiceTimeNode(dsService.node)
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dsService.fg.AddNode(&dmStreamNode)
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dsService.fg.AddNode(&filterDmNode)
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dsService.fg.AddNode(&insertNode)
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dsService.fg.AddNode(&serviceTimeNode)
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var err = dsService.fg.SetEdges(dmStreamNode.Name(),
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[]string{},
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[]string{filterDmNode.Name()},
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)
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if err != nil {
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log.Fatal("set edges failed in node:", dmStreamNode.Name())
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}
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err = dsService.fg.SetEdges(filterDmNode.Name(),
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[]string{dmStreamNode.Name()},
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[]string{insertNode.Name()},
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)
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if err != nil {
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log.Fatal("set edges failed in node:", filterDmNode.Name())
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}
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err = dsService.fg.SetEdges(insertNode.Name(),
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[]string{filterDmNode.Name()},
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[]string{serviceTimeNode.Name()},
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)
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if err != nil {
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log.Fatal("set edges failed in node:", insertNode.Name())
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}
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err = dsService.fg.SetEdges(serviceTimeNode.Name(),
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[]string{insertNode.Name()},
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[]string{},
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)
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if err != nil {
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log.Fatal("set edges failed in node:", serviceTimeNode.Name())
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}
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dsService.setDmStream(&dmStreamNode)
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}
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func (dsService *dataSyncService) setDmStream(node *Node) {
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if (*node).IsInputNode() {
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inStream, ok := (*node).(*InputNode)
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dsService.dmStream = inStream.InStream()
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if !ok {
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log.Fatal("Invalid inputNode")
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}
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} else {
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log.Fatal("stream set failed")
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}
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}
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func (dsService *dataSyncService) setDdStream(node *Node) {}
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func (dsService *dataSyncService) setK2sStream(node *Node) {}
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