github.com/weaviate/weaviate@v1.24.6/entities/errorcompounder/compounder_thread_safe.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  	"sync"
    18  
    19  	"github.com/pkg/errors"
    20  )
    21  
    22  type SafeErrorCompounder struct {
    23  	sync.Mutex
    24  	errors []error
    25  }
    26  
    27  func (ec *SafeErrorCompounder) Add(err error) {
    28  	ec.Lock()
    29  	defer ec.Unlock()
    30  	if err != nil {
    31  		ec.errors = append(ec.errors, err)
    32  	}
    33  }
    34  
    35  func (ec *SafeErrorCompounder) Addf(msg string, args ...interface{}) {
    36  	ec.Lock()
    37  	defer ec.Unlock()
    38  	ec.errors = append(ec.errors, fmt.Errorf(msg, args...))
    39  }
    40  
    41  func (ec *SafeErrorCompounder) ToError() error {
    42  	ec.Lock()
    43  	defer ec.Unlock()
    44  	if len(ec.errors) == 0 {
    45  		return nil
    46  	}
    47  
    48  	var msg strings.Builder
    49  	for i, err := range ec.errors {
    50  		if i != 0 {
    51  			msg.WriteString(", ")
    52  		}
    53  
    54  		msg.WriteString(err.Error())
    55  	}
    56  
    57  	return errors.New(msg.String())
    58  }