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Various Utilities in Support of the Token-SDK (hyperledger-labs#487)
Signed-off-by: Angelo De Caro <[email protected]> Signed-off-by: Alexandros Filios <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /* | ||
| Copyright IBM Corp. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package mock | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
|
|
||
| "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/assert" | ||
| "github.com/hyperledger-labs/fabric-smart-client/platform/view/view" | ||
| ) | ||
|
|
||
| // InitiatorViewFactory is the factory of Initiator views | ||
| type InitiatorViewFactory struct{} | ||
|
|
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| // NewView returns a new instance of the Initiator view | ||
| func (i *InitiatorViewFactory) NewView(in []byte) (view.View, error) { | ||
| f := &Initiator{Params: &Params{}} | ||
| err := json.Unmarshal(in, f.Params) | ||
| assert.NoError(err, "failed unmarshalling input") | ||
| return f, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /* | ||
| Copyright IBM Corp. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package mock | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
|
|
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| view2 "github.com/hyperledger-labs/fabric-smart-client/platform/view" | ||
| "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/assert" | ||
| view3 "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/view" | ||
| "github.com/hyperledger-labs/fabric-smart-client/platform/view/view" | ||
| "github.com/pkg/errors" | ||
| ) | ||
|
|
||
| type Params struct { | ||
| Mock bool | ||
| } | ||
|
|
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| type Initiator struct { | ||
| *Params | ||
| } | ||
|
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| func (p *Initiator) Call(ctx view.Context) (interface{}, error) { | ||
| // Retrieve responder identity | ||
| responder := view2.GetIdentityProvider(ctx).Identity("responder") | ||
| var context view.Context | ||
| if p.Mock { | ||
| c := &view3.MockContext{Ctx: ctx} | ||
| c.RespondToAs(ctx.Initiator(), responder, &Responder{}) | ||
| context = c | ||
| } else { | ||
| context = ctx | ||
| } | ||
|
|
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| // Open a session to the responder | ||
| session, err := context.GetSession(context.Initiator(), responder) | ||
| assert.NoError(err) // Send a ping | ||
|
|
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| err = session.Send([]byte("ping")) | ||
| assert.NoError(err) // Wait for the pong | ||
| ch := session.Receive() | ||
| select { | ||
| case msg := <-ch: | ||
| if msg.Status == view.ERROR { | ||
| return nil, errors.New(string(msg.Payload)) | ||
| } | ||
| m := string(msg.Payload) | ||
| if m != "mock pong" { | ||
| return nil, fmt.Errorf("expected mock pong, got %s", m) | ||
| } | ||
| case <-time.After(1 * time.Minute): | ||
| return nil, errors.New("responder didn't pong in time") | ||
| } | ||
|
|
||
| // Return | ||
| return "OK", nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| /* | ||
| Copyright IBM Corp. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package mock | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/hyperledger-labs/fabric-smart-client/platform/view/services/assert" | ||
| "github.com/hyperledger-labs/fabric-smart-client/platform/view/view" | ||
| ) | ||
|
|
||
| type Responder struct{} | ||
|
|
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| func (p *Responder) Call(context view.Context) (interface{}, error) { | ||
| // Retrieve the session opened by the initiator | ||
| session := context.Session() | ||
|
|
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| // Read the message from the initiator | ||
| ch := session.Receive() | ||
| var payload []byte | ||
| select { | ||
| case msg := <-ch: | ||
| payload = msg.Payload | ||
| case <-time.After(5 * time.Second): | ||
| return nil, errors.New("time out reached") | ||
| } | ||
| // Respond with a pong if a ping is received, an error otherwise | ||
| m := string(payload) | ||
| switch { | ||
| case m != "ping": | ||
| // reply with an error | ||
| err := session.SendError([]byte(fmt.Sprintf("expected ping, got %s", m))) | ||
| assert.NoError(err) | ||
| return nil, fmt.Errorf("expected ping, got %s", m) | ||
| default: | ||
| // reply with pong | ||
| err := session.Send([]byte("mock pong")) | ||
| assert.NoError(err) | ||
| } | ||
|
|
||
| // Return | ||
| return "OK", nil | ||
| } |
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