-
Notifications
You must be signed in to change notification settings - Fork 8.9k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge "FAB-860 Fix table crash" into v0.6
- Loading branch information
Showing
3 changed files
with
236 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| /* | ||
| Copyright IBM Corp. 2016 All Rights Reserved. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
|
|
||
| "github.com/hyperledger/fabric/core/chaincode/shim" | ||
| ) | ||
|
|
||
| const ( | ||
| totalRows = 1000 | ||
| ) | ||
|
|
||
| type largeRowsetChaincode struct { | ||
| } | ||
|
|
||
| func (lrc *largeRowsetChaincode) retInAdd(ok bool, err error) ([]byte, error) { | ||
| if err != nil { | ||
| return nil, fmt.Errorf("operation failed. %s", err) | ||
| } | ||
| if !ok { | ||
| return nil, err | ||
| } | ||
| return nil, nil | ||
| } | ||
|
|
||
| // Init called for initializing the chaincode | ||
| func (lrc *largeRowsetChaincode) Init(stub shim.ChaincodeStubInterface, function string, args []string) ([]byte, error) { | ||
| // Create a new table | ||
| if err := stub.CreateTable("LargeTable", []*shim.ColumnDefinition{ | ||
| {Name: "Key", Type: shim.ColumnDefinition_STRING, Key: true}, | ||
| {"Name", shim.ColumnDefinition_STRING, false}, | ||
| {"Value", shim.ColumnDefinition_STRING, false}, | ||
| }); err != nil { | ||
| //just assume the table exists and was populated | ||
| return nil, nil | ||
| } | ||
|
|
||
| for i := 0; i < totalRows; i++ { | ||
| col1 := fmt.Sprintf("Key_%d", i) | ||
| col2 := fmt.Sprintf("Name_%d", i) | ||
| col3 := fmt.Sprintf("Value_%d", i) | ||
| if _, err := lrc.retInAdd(stub.InsertRow("LargeTable", shim.Row{Columns: []*shim.Column{ | ||
| &shim.Column{Value: &shim.Column_String_{String_: col1}}, | ||
| &shim.Column{Value: &shim.Column_String_{String_: col2}}, | ||
| &shim.Column{Value: &shim.Column_String_{String_: col3}}, | ||
| }})); err != nil { | ||
| return nil, err | ||
| } | ||
| } | ||
|
|
||
| return nil, nil | ||
| } | ||
|
|
||
| // Run callback representing the invocation of a chaincode | ||
| func (lrc *largeRowsetChaincode) Invoke(stub shim.ChaincodeStubInterface, function string, args []string) ([]byte, error) { | ||
| return nil, nil | ||
| } | ||
|
|
||
| // Query callback representing the query of a chaincode. | ||
| func (lrc *largeRowsetChaincode) Query(stub shim.ChaincodeStubInterface, function string, args []string) ([]byte, error) { | ||
| var err error | ||
| //stop at 1 greater than total rows by default (ie, read all rows) | ||
| var stopAtRow = totalRows | ||
|
|
||
| if len(args) > 0 { | ||
| stopAtRow, err = strconv.Atoi(string(args[0])) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| } | ||
| model := "LargeTable" | ||
|
|
||
| var rowChannel <-chan shim.Row | ||
|
|
||
| rowChannel, err = stub.GetRows(model, []shim.Column{}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| i := stopAtRow | ||
|
|
||
| var rows []*shim.Row | ||
| for { | ||
| select { | ||
| case row, ok := <-rowChannel: | ||
| if !ok { | ||
| rowChannel = nil | ||
| } else { | ||
| rows = append(rows, &row) | ||
| } | ||
| } | ||
|
|
||
| i = i - 1 | ||
| if rowChannel == nil || i == 0 { | ||
| break | ||
| } | ||
| } | ||
|
|
||
| col1 := shim.Column{Value: &shim.Column_String_{String_: "Key_2"}} | ||
| _, err = stub.GetRow(model, []shim.Column{col1}) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return []byte(fmt.Sprintf("%d", len(rows))), nil | ||
| } | ||
|
|
||
| func main() { | ||
| err := shim.Start(new(largeRowsetChaincode)) | ||
| if err != nil { | ||
| fmt.Printf("Error starting the chaincode: %s", err) | ||
| } | ||
| } |