github.com/weaviate/weaviate@v1.24.6/entities/errorcompounder/compounder.go (about)

     1  //                           _       _
     2  // __      _____  __ ___   ___  __ _| |_ ___
     3  // \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
     4  //  \ V  V /  __/ (_| |\ V /| | (_| | ||  __/
     5  //   \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
     6  //
     7  //  Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
     8  //
     9  //  CONTACT: hello@weaviate.io
    10  //
    11  
    12  package errorcompounder
    13  
    14  import (
    15  	"fmt"
    16  	"strings"
    17  
    18  	"github.com/pkg/errors"
    19  )
    20  
    21  type ErrorCompounder struct {
    22  	errors []error
    23  }
    24  
    25  func (ec *ErrorCompounder) Add(err error) {
    26  	if err != nil {
    27  		ec.errors = append(ec.errors, err)
    28  	}
    29  }
    30  
    31  func (ec *ErrorCompounder) Addf(msg string, args ...interface{}) {
    32  	ec.errors = append(ec.errors, fmt.Errorf(msg, args...))
    33  }
    34  
    35  func (ec *ErrorCompounder) AddWrap(err error, wrapMsg ...string) {
    36  	if err != nil {
    37  		ec.errors = append(ec.errors, errors.Wrap(err, wrapMsg[0]))
    38  	}
    39  }
    40  
    41  func (ec *ErrorCompounder) ToError() error {
    42  	if len(ec.errors) == 0 {
    43  		return nil
    44  	}
    45  
    46  	var msg strings.Builder
    47  	for i, err := range ec.errors {
    48  		if i != 0 {
    49  			msg.WriteString(", ")
    50  		}
    51  
    52  		msg.WriteString(err.Error())
    53  	}
    54  
    55  	return errors.New(msg.String())
    56  }
    57  
    58  func (ec *ErrorCompounder) Len() int {
    59  	return len(ec.errors)
    60  }