github.com/uber/kraken@v0.1.4/lib/persistedretry/tagreplication/task.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     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  package tagreplication
    15  
    16  import (
    17  	"fmt"
    18  	"time"
    19  
    20  	"github.com/uber/kraken/core"
    21  )
    22  
    23  // Task contains information to replicate a tag and its dependencies to a
    24  // remote destination.
    25  type Task struct {
    26  	Tag          string          `db:"tag"`
    27  	Digest       core.Digest     `db:"digest"`
    28  	Dependencies core.DigestList `db:"dependencies"`
    29  	Destination  string          `db:"destination"`
    30  	CreatedAt    time.Time       `db:"created_at"`
    31  	LastAttempt  time.Time       `db:"last_attempt"`
    32  	Failures     int             `db:"failures"`
    33  	Delay        time.Duration   `db:"delay"`
    34  }
    35  
    36  // NewTask creates a new Task.
    37  func NewTask(
    38  	tag string,
    39  	d core.Digest,
    40  	dependencies core.DigestList,
    41  	destination string,
    42  	delay time.Duration) *Task {
    43  
    44  	return &Task{
    45  		Tag:          tag,
    46  		Digest:       d,
    47  		Dependencies: dependencies,
    48  		Destination:  destination,
    49  		CreatedAt:    time.Now(),
    50  		Delay:        delay,
    51  	}
    52  }
    53  
    54  func (t *Task) String() string {
    55  	return fmt.Sprintf("tagreplication.Task(tag=%s, dest=%s)", t.Tag, t.Destination)
    56  }
    57  
    58  // GetLastAttempt returns when t was last attempted.
    59  func (t *Task) GetLastAttempt() time.Time {
    60  	return t.LastAttempt
    61  }
    62  
    63  // GetFailures returns the number of times t has failed.
    64  func (t *Task) GetFailures() int {
    65  	return t.Failures
    66  }
    67  
    68  // Ready returns whether t is ready to run.
    69  func (t *Task) Ready() bool {
    70  	return time.Since(t.CreatedAt) >= t.Delay
    71  }
    72  
    73  // Tags returns the replication destination.
    74  func (t *Task) Tags() map[string]string {
    75  	return map[string]string{
    76  		"dest": t.Destination,
    77  	}
    78  }