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3bf3fe8fa7
We are planning to add several very similar tools for creating batches like the existing pyspark batches: spark (Java), R, etc. They will use an identical approach of specifying environment and runtime config in the YAML, differing only in how language-specific args are passed. We can streamline this.
93 lines
3.2 KiB
Go
93 lines
3.2 KiB
Go
// Copyright 2025 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package createbatch
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import (
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"context"
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"encoding/json"
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"fmt"
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dataproc "cloud.google.com/go/dataproc/v2/apiv1/dataprocpb"
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"github.com/goccy/go-yaml"
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"google.golang.org/protobuf/encoding/protojson"
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"google.golang.org/protobuf/proto"
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)
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// unmarshalProto is a helper function to unmarshal a generic interface{} into a proto.Message.
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func unmarshalProto(data any, m proto.Message) error {
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jsonData, err := json.Marshal(data)
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if err != nil {
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return fmt.Errorf("failed to marshal to JSON: %w", err)
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}
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return protojson.Unmarshal(jsonData, m)
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}
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// Config is a common config that can be used with any type of create batch tool. However, each tool
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// will still need its own config type, embedding this Config, so it can provide a type-specific
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// Initialize implementation.
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type Config struct {
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Name string `yaml:"name" validate:"required"`
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Kind string `yaml:"kind" validate:"required"`
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Source string `yaml:"source" validate:"required"`
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Description string `yaml:"description"`
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RuntimeConfig *dataproc.RuntimeConfig `yaml:"runtimeConfig"`
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EnvironmentConfig *dataproc.EnvironmentConfig `yaml:"environmentConfig"`
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AuthRequired []string `yaml:"authRequired"`
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}
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func NewConfig(ctx context.Context, name string, decoder *yaml.Decoder) (Config, error) {
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// Use a temporary struct to decode the YAML, so that we can handle the proto
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// conversion for RuntimeConfig and EnvironmentConfig.
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var ymlCfg struct {
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Name string `yaml:"name"`
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Kind string `yaml:"kind"`
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Source string `yaml:"source"`
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Description string `yaml:"description"`
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RuntimeConfig any `yaml:"runtimeConfig"`
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EnvironmentConfig any `yaml:"environmentConfig"`
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AuthRequired []string `yaml:"authRequired"`
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}
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if err := decoder.DecodeContext(ctx, &ymlCfg); err != nil {
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return Config{}, err
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}
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cfg := Config{
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Name: name,
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Kind: ymlCfg.Kind,
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Source: ymlCfg.Source,
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Description: ymlCfg.Description,
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AuthRequired: ymlCfg.AuthRequired,
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}
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if ymlCfg.RuntimeConfig != nil {
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rc := &dataproc.RuntimeConfig{}
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if err := unmarshalProto(ymlCfg.RuntimeConfig, rc); err != nil {
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return Config{}, fmt.Errorf("failed to unmarshal runtimeConfig: %w", err)
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}
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cfg.RuntimeConfig = rc
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}
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if ymlCfg.EnvironmentConfig != nil {
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ec := &dataproc.EnvironmentConfig{}
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if err := unmarshalProto(ymlCfg.EnvironmentConfig, ec); err != nil {
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return Config{}, fmt.Errorf("failed to unmarshal environmentConfig: %w", err)
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}
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cfg.EnvironmentConfig = ec
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}
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return cfg, nil
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}
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