istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/test/loadbalancersim/locality/locality.go (about)

     1  //  Copyright Istio Authors
     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 locality
    16  
    17  import (
    18  	"fmt"
    19  	"strings"
    20  )
    21  
    22  type Instance struct {
    23  	Zone   string
    24  	Region string
    25  }
    26  
    27  func (l Instance) String() string {
    28  	return fmt.Sprintf("%s/%s", l.Region, l.Zone)
    29  }
    30  
    31  func Parse(s string) Instance {
    32  	parts := strings.Split(s, "/")
    33  	if len(parts) != 2 {
    34  		panic("invalid locality string: " + s)
    35  	}
    36  	return Instance{
    37  		Region: parts[0],
    38  		Zone:   parts[1],
    39  	}
    40  }