github.com/leonlxy/hyperledger@v1.0.0-alpha.0.20170427033203-34922035d248/peer/chaincode/query.go (about)

     1  /*
     2  Copyright IBM Corp. 2016 All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  		 http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package chaincode
    18  
    19  import (
    20  	"fmt"
    21  
    22  	"github.com/spf13/cobra"
    23  )
    24  
    25  var chaincodeQueryCmd *cobra.Command
    26  
    27  // queryCmd returns the cobra command for Chaincode Query
    28  func queryCmd(cf *ChaincodeCmdFactory) *cobra.Command {
    29  	chaincodeQueryCmd = &cobra.Command{
    30  		Use:       "query",
    31  		Short:     fmt.Sprintf("Query using the specified %s.", chainFuncName),
    32  		Long:      fmt.Sprintf("Get endorsed result of %s function call and print it. It won't generate transaction.", chainFuncName),
    33  		ValidArgs: []string{"1"},
    34  		RunE: func(cmd *cobra.Command, args []string) error {
    35  			return chaincodeQuery(cmd, args, cf)
    36  		},
    37  	}
    38  
    39  	chaincodeQueryCmd.Flags().BoolVarP(&chaincodeQueryRaw, "raw", "r", false,
    40  		"If true, output the query value as raw bytes, otherwise format as a printable string")
    41  	chaincodeQueryCmd.Flags().BoolVarP(&chaincodeQueryHex, "hex", "x", false,
    42  		"If true, output the query value byte array in hexadecimal. Incompatible with --raw")
    43  
    44  	return chaincodeQueryCmd
    45  }
    46  
    47  func chaincodeQuery(cmd *cobra.Command, args []string, cf *ChaincodeCmdFactory) error {
    48  	var err error
    49  	if cf == nil {
    50  		cf, err = InitCmdFactory(true, false)
    51  		if err != nil {
    52  			return err
    53  		}
    54  	}
    55  
    56  	return chaincodeInvokeOrQuery(cmd, args, false, cf)
    57  }