github.com/lzy4123/fabric@v2.1.1+incompatible/core/handlers/decoration/decoration.go (about)

     1  /*
     2  Copyright IBM Corp, SecureKey Technologies Inc. All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  
     7  package decoration
     8  
     9  import (
    10  	"github.com/hyperledger/fabric-protos-go/peer"
    11  )
    12  
    13  // Decorator decorates a chaincode input
    14  type Decorator interface {
    15  	// Decorate decorates a chaincode input by changing it
    16  	Decorate(proposal *peer.Proposal, input *peer.ChaincodeInput) *peer.ChaincodeInput
    17  }
    18  
    19  // Apply decorators in the order provided
    20  func Apply(proposal *peer.Proposal, input *peer.ChaincodeInput,
    21  	decorators ...Decorator) *peer.ChaincodeInput {
    22  	for _, decorator := range decorators {
    23  		input = decorator.Decorate(proposal, input)
    24  	}
    25  
    26  	return input
    27  }