go.temporal.io/server@v1.23.0/common/persistence/sql/token.go (about)

     1  // The MIT License
     2  //
     3  // Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
     4  //
     5  // Copyright (c) 2020 Uber Technologies, Inc.
     6  //
     7  // Permission is hereby granted, free of charge, to any person obtaining a copy
     8  // of this software and associated documentation files (the "Software"), to deal
     9  // in the Software without restriction, including without limitation the rights
    10  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    11  // copies of the Software, and to permit persons to whom the Software is
    12  // furnished to do so, subject to the following conditions:
    13  //
    14  // The above copyright notice and this permission notice shall be included in
    15  // all copies or substantial portions of the Software.
    16  //
    17  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    18  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    19  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    20  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    21  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    22  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    23  // THE SOFTWARE.
    24  
    25  package sql
    26  
    27  import (
    28  	"encoding/json"
    29  )
    30  
    31  type (
    32  	historyNodePaginationToken struct {
    33  		LastNodeID int64
    34  		LastTxnID  int64
    35  	}
    36  )
    37  
    38  func newHistoryNodePaginationToken(
    39  	nodeID int64,
    40  	transactionID int64,
    41  ) historyNodePaginationToken {
    42  	return historyNodePaginationToken{
    43  		LastNodeID: nodeID,
    44  		LastTxnID:  transactionID,
    45  	}
    46  }
    47  
    48  func serializeHistoryNodePaginationToken(
    49  	token historyNodePaginationToken,
    50  ) ([]byte, error) {
    51  	return json.Marshal(token)
    52  }
    53  
    54  func deserializeHistoryNodePaginationToken(
    55  	bytes []byte,
    56  ) (historyNodePaginationToken, error) {
    57  	var token historyNodePaginationToken
    58  	err := json.Unmarshal(bytes, &token)
    59  	return token, err
    60  }