I'm trying to unmarshal json with dynamic field keys to the struct That json returned from storcli utility for linux. One part of the code work well, but if json data contains many structs I can't unmarshal it. I think that is because DriveDetailedInformation struct do not have all json tags. Can anybody help me?
package main
import (
"fmt"
"encoding/json"
)
type jsonStruct struct {
Controllers []struct {
CommandStatus struct {
Controller int `json:"Controller"`
Status string `json:"Status"`
Description string `json:"Description"`
} `json:"Command Status"`
ResponseData map[string]*json.RawMessage `json:"Response Data"`
} `json:"Controllers"`
}
type DriveStruct struct {
EIDSlt string `json:"EID:Slt"`
DID int `json:"DID"`
State string `json:"State"`
DG int `json:"DG"`
Size string `json:"Size"`
Intf string `json:"Intf"`
Med string `json:"Med"`
SED string `json:"SED"`
PI string `json:"PI"`
SeSz string `json:"SeSz"`
Model string `json:"Model"`
Sp string `json:"Sp"`
}
type DriveDetailedInformation struct {
DriveState map[string]DriveStateStruct
DriveDeviceAttributes map[string]DriveDeviceAttributesStruct
DrivePoliciesSettings map[string]DrivePoliciesSettingsStruct
InquiryData string `json:"Inquiry Data"`
}
type DriveStateStruct struct {
ShieldCounter int `json:"Shield Counter"`
MediaErrorCount int `json:"Media Error Count"`
OtherErrorCount int `json:"Other Error Count"`
BBMErrorCount int `json:"BBM Error Count"`
DriveTemperature string `json:"Drive Temperature"`
PredictiveFailureCount int `json:"Predictive Failure Count"`
SMARTAlertFlaggedByDrive string `json:"S.M.A.R.T alert flagged by drive"`
}
type DriveDeviceAttributesStruct struct {
SN string `json:"SN"`
ManufacturerID string `json:"Manufacturer Id"`
ModelNumber string `json:"Model Number"`
NANDVendor string `json:"NAND Vendor"`
WWN string `json:"WWN"`
FirmwareRevision string `json:"Firmware Revision"`
RawSize string `json:"Raw size"`
CoercedSize string `json:"Coerced size"`
NonCoercedSize string `json:"Non Coerced size"`
DeviceSpeed string `json:"Device Speed"`
LinkSpeed string `json:"Link Speed"`
NCQSetting string `json:"NCQ setting"`
WriteCache string `json:"Write cache"`
SectorSize string `json:"Sector Size"`
ConnectorName string `json:"Connector Name"`
}
type DrivePoliciesSettingsStruct struct {
DrivePosition string `json:"Drive position"`
EnclosurePosition int `json:"Enclosure position"`
ConnectedPortNumber string `json:"Connected Port Number"`
SequenceNumber int `json:"Sequence Number"`
CommissionedSpare string `json:"Commissioned Spare"`
EmergencySpare string `json:"Emergency Spare"`
LastPredictiveFailureEventSequenceNumber int `json:"Last Predictive Failure Event Sequence Number"`
SuccessfulDiagnosticsCompletionOn string `json:"Successful diagnostics completion on"`
SEDCapable string `json:"SED Capable"`
SEDEnabled string `json:"SED Enabled"`
Secured string `json:"Secured"`
Locked string `json:"Locked"`
NeedsEKMAttention string `json:"Needs EKM Attention"`
PIEligible string `json:"PI Eligible"`
Certified string `json:"Certified"`
WidePortCapable string `json:"Wide Port Capable"`
PortInformation []struct {
Port int `json:"Port"`
Status string `json:"Status"`
Linkspeed string `json:"Linkspeed"`
SASAddress string `json:"SAS address"`
} `json:"Port Information"`
}
var jsonData = `
{
"Controllers":[
{
"Command Status":{
"Controller":0,
"Status":"Success",
"Description":"Show Drive Information Succeeded."
},
"Response Data":{
"Drive /c0/e31/s0":[
{
"EID:Slt":"31:0",
"DID":19,
"State":"Onln",
"DG":0,
"Size":"9.094 TB",
"Intf":"SATA",
"Med":"HDD",
"SED":"N",
"PI":"N",
"SeSz":"512B",
"Model":"ST10000DM0004-1ZC101",
"Sp":"U"
}
],
"Drive /c0/e31/s0 - Detailed Information":{
"Drive /c0/e31/s0 State":{
"Shield Counter":0,
"Media Error Count":0,
"Other Error Count":0,
"BBM Error Count":0,
"Drive Temperature":" 25C (77.00 F)",
"Predictive Failure Count":0,
"S.M.A.R.T alert flagged by drive":"No"
},
"Drive /c0/e31/s0 Device attributes":{
"SN":" ZA23V0DH",
"Manufacturer Id":"ATA ",
"Model Number":"ST10000DM0004-1ZC101",
"NAND Vendor":"NA",
"WWN":"5000c500a5ad06b6",
"Firmware Revision":"DN01 ",
"Raw size":"9.095 TB [0x48c400000 Sectors]",
"Coerced size":"9.094 TB [0x48c300000 Sectors]",
"Non Coerced size":"9.094 TB [0x48c300000 Sectors]",
"Device Speed":"6.0Gb/s",
"Link Speed":"6.0Gb/s",
"NCQ setting":"N/A",
"Write cache":"N/A",
"Sector Size":"512B",
"Connector Name":""
},
"Drive /c0/e31/s0 Policies/Settings":{
"Drive position":"DriveGroup:0, Span:0, Row:0",
"Enclosure position":0,
"Connected Port Number":"0(path0) ",
"Sequence Number":2,
"Commissioned Spare":"No",
"Emergency Spare":"No",
"Last Predictive Failure Event Sequence Number":0,
"Successful diagnostics completion on":"N/A",
"SED Capable":"No",
"SED Enabled":"No",
"Secured":"No",
"Locked":"No",
"Needs EKM Attention":"No",
"PI Eligible":"No",
"Certified":"No",
"Wide Port Capable":"No",
"Port Information":[
{
"Port":0,
"Status":"Active",
"Linkspeed":"6.0Gb/s",
"SAS address":"0x5003048001927c6c"
}
]
},
"Inquiry Data":""
},
"Drive /c0/e31/s1":[
{
"EID:Slt":"31:1",
"DID":20,
"State":"Onln",
"DG":0,
"Size":"9.094 TB",
"Intf":"SATA",
"Med":"HDD",
"SED":"N",
"PI":"N",
"SeSz":"512B",
"Model":"ST10000DM0004-1ZC101",
"Sp":"U"
}
],
"Drive /c0/e31/s1 - Detailed Information":{
"Drive /c0/e31/s1 State":{
"Shield Counter":0,
"Media Error Count":0,
"Other Error Count":0,
"BBM Error Count":0,
"Drive Temperature":" 25C (77.00 F)",
"Predictive Failure Count":0,
"S.M.A.R.T alert flagged by drive":"No"
},
"Drive /c0/e31/s1 Device attributes":{
"SN":" ZA23MCVS",
"Manufacturer Id":"ATA ",
"Model Number":"ST10000DM0004-1ZC101",
"NAND Vendor":"NA",
"WWN":"5000c500a5acc582",
"Firmware Revision":"DN01 ",
"Raw size":"9.095 TB [0x48c400000 Sectors]",
"Coerced size":"9.094 TB [0x48c300000 Sectors]",
"Non Coerced size":"9.094 TB [0x48c300000 Sectors]",
"Device Speed":"6.0Gb/s",
"Link Speed":"6.0Gb/s",
"NCQ setting":"N/A",
"Write cache":"N/A",
"Sector Size":"512B",
"Connector Name":""
},
"Drive /c0/e31/s1 Policies/Settings":{
"Drive position":"DriveGroup:0, Span:0, Row:1",
"Enclosure position":0,
"Connected Port Number":"0(path0) ",
"Sequence Number":2,
"Commissioned Spare":"No",
"Emergency Spare":"No",
"Last Predictive Failure Event Sequence Number":0,
"Successful diagnostics completion on":"N/A",
"SED Capable":"No",
"SED Enabled":"No",
"Secured":"No",
"Locked":"No",
"Needs EKM Attention":"No",
"PI Eligible":"No",
"Certified":"No",
"Wide Port Capable":"No",
"Port Information":[
{
"Port":0,
"Status":"Active",
"Linkspeed":"6.0Gb/s",
"SAS address":"0x5003048001927c6d"
}
]
},
"Inquiry Data":""
}
}
}
]
}
`
func main() {
var f jsonStruct
err := json.Unmarshal([]byte(jsonData), &f)
if err != nil {
fmt.Println("Error parsing JSON: ", err)
}
for _, controller := range f.Controllers {
for k, v := range controller.ResponseData {
///THAT IS WORK
var ds []DriveStruct
if err := json.Unmarshal(*v, &ds); err == nil {
fmt.Println(k, ds)
}
///THAT IS NOT WORK WHY?
var dds DriveDetailedInformation
if err := json.Unmarshal(*v, &dds); err == nil {
fmt.Println(k, dds)
}
}
}
}