yunion.io/x/cloudmux@v0.3.10-0-alpha.1/pkg/cloudprovider/generic/operator.go (about)

     1  // Copyright 2019 Yunion
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package generic
    16  
    17  import (
    18  	"yunion.io/x/pkg/errors"
    19  
    20  	"yunion.io/x/cloudmux/pkg/cloudprovider"
    21  )
    22  
    23  type Operator[T cloudprovider.ICloudResource] struct {
    24  	objects []T
    25  }
    26  
    27  func NewOperator[T cloudprovider.ICloudResource](nf func() ([]T, error)) (*Operator[T], error) {
    28  	objs, err := nf()
    29  	if err != nil {
    30  		return nil, errors.Wrap(err, "new resources")
    31  	}
    32  
    33  	return &Operator[T]{
    34  		objects: objs,
    35  	}, nil
    36  }
    37  
    38  func (o Operator[T]) Iter(f func(T) error, continueOnErr bool) error {
    39  	return Iter(o.objects, f, continueOnErr)
    40  }