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https://issues.apache.org/jira/browse/BEAM-4813?focusedWorklogId=128783&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-128783
]
ASF GitHub Bot logged work on BEAM-4813:
----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Jul/18 16:38
Start Date: 30/Jul/18 16:38
Worklog Time Spent: 10m
Work Description: herohde commented on a change in pull request #5994:
[BEAM-4813] Refactor Go Dataflow runner and translation
URL: https://github.com/apache/beam/pull/5994#discussion_r206240818
##########
File path: sdks/go/pkg/beam/core/runtime/graphx/dataflow.go
##########
@@ -0,0 +1,301 @@
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements. See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You 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.
+
+package graphx
+
+import (
+ "fmt"
+
+ "github.com/apache/beam/sdks/go/pkg/beam/core/graph/coder"
+ "github.com/apache/beam/sdks/go/pkg/beam/core/runtime/graphx/v1"
+ "github.com/apache/beam/sdks/go/pkg/beam/core/typex"
+ "github.com/apache/beam/sdks/go/pkg/beam/core/util/protox"
+)
+
+// TODO(herohde) 7/17/2018: move CoderRef to dataflowlib once Dataflow
+// sends back pure coder protos in the process bundle descriptors.
+
+// CoderRef defines the (structured) Coder in serializable form. It is
+// an artifact of the CloudObject encoding.
+type CoderRef struct {
+ Type string `json:"@type,omitempty"`
+ Components []*CoderRef `json:"component_encodings,omitempty"`
+ IsWrapper bool `json:"is_wrapper,omitempty"`
+ IsPairLike bool `json:"is_pair_like,omitempty"`
+ IsStreamLike bool `json:"is_stream_like,omitempty"`
+}
+
+// Exported types are used for translation lookup.
+const (
+ windowedValueType = "kind:windowed_value"
+ bytesType = "kind:bytes"
+ varIntType = "kind:varint"
+ streamType = "kind:stream"
+ pairType = "kind:pair"
+ lengthPrefixType = "kind:length_prefix"
+
+ globalWindowType = "kind:global_window"
+ intervalWindowType = "kind:interval_window"
+
+ cogbklistType = "kind:cogbklist" // CoGBK representation. Not a coder.
+)
+
+// WrapIterable adds an iterable (stream) coder for Dataflow side input.
+func WrapIterable(c *CoderRef) *CoderRef {
+ return &CoderRef{Type: streamType, Components: []*CoderRef{c},
IsStreamLike: true}
+}
+
+// WrapWindowed adds an windowed coder for Dataflow collections.
Review comment:
Done
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Issue Time Tracking
-------------------
Worklog Id: (was: 128783)
Time Spent: 2h 20m (was: 2h 10m)
> Make Go Dataflow translation use protos directly
> ------------------------------------------------
>
> Key: BEAM-4813
> URL: https://issues.apache.org/jira/browse/BEAM-4813
> Project: Beam
> Issue Type: Improvement
> Components: sdk-go
> Reporter: Henning Rohde
> Assignee: Henning Rohde
> Priority: Major
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> The Go SDK maintains 2 pipeline translations and keeps various tweaks in
> sync. It would be better to remove the Dataflow one and extract a more
> flexible (such as running as a separate proxy) translation from proto to
> v1beta3.
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