| // 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 exec |
| |
| import ( |
| "context" |
| "runtime/debug" |
| |
| "github.com/apache/beam/sdks/go/pkg/beam/internal/errors" |
| ) |
| |
| // GenID is a simple UnitID generator. |
| type GenID struct { |
| last int |
| } |
| |
| // New returns a fresh ID. |
| func (g *GenID) New() UnitID { |
| g.last++ |
| return UnitID(g.last) |
| } |
| |
| // callNoPanic calls the given function and catches any panic. |
| func callNoPanic(ctx context.Context, fn func(context.Context) error) (err error) { |
| defer func() { |
| if r := recover(); r != nil { |
| err = errors.Errorf("panic: %v %s", r, debug.Stack()) |
| } |
| }() |
| return fn(ctx) |
| } |
| |
| // MultiStartBundle calls StartBundle on multiple nodes. Convenience function. |
| func MultiStartBundle(ctx context.Context, id string, data DataContext, list ...Node) error { |
| for _, n := range list { |
| if err := n.StartBundle(ctx, id, data); err != nil { |
| return err |
| } |
| } |
| return nil |
| } |
| |
| // MultiFinishBundle calls StartBundle on multiple nodes. Convenience function. |
| func MultiFinishBundle(ctx context.Context, list ...Node) error { |
| for _, n := range list { |
| if err := n.FinishBundle(ctx); err != nil { |
| return err |
| } |
| } |
| return nil |
| } |
| |
| // IDs returns the unit IDs of the given nodes. |
| func IDs(list ...Node) []UnitID { |
| var ret []UnitID |
| for _, n := range list { |
| ret = append(ret, n.ID()) |
| } |
| return ret |
| } |