[go-nuts] Re: appengine golang logs
In appengine you have to use google.golang.org/appengine/log package. The
log calls must have a context passed to it.
See https://cloud.google.com/appengine/docs/standard/go/logs/reference.
On Friday, November 3, 2017 at 3:58:34 AM UTC-4, Sankar wrote:
>
> Hi
>
>
> I have a golang file where I have code like:
>
>
> log.Fatal("My error message: ", err)
>
>
> When the above statement is executed, In the appengine logviewer, I get
> something like:
>
> panic: os.Exit called goroutine 1 [running]:
> os.Exit(0x1)
> go/src/os/proc.go:58
>
>
> +0x7c log.Fatal(0xc008549f60, 0x2, 0x2)
> go/src/log/log.go:303
>
>
> +0x79 main.main()
> main.go:42
>
>
> +0x201
>
> But I dont get any error message. The main.go:42 corresponds to the
> log.Fatal line in my code but I do not get to see the error message that is
> printed as part of the log statement.
>
> I see that appengine package has a "Log" function which may print the
> AppLogs such that they can be viewed from the Google Appengine log console
> itself.
>
> My question is, can the golang default log package be somehow instructed
> to redirect to appengine ? Something like:
>
> if env == "AppEngine" {
> log.SetOutput(appengine.DefaultLogger)
> }
>
> in my main file ? This way, I get to make my code not locked to google
> cloud and also can deploy existing code which uses log already.
>
> Any pointers ?
>
> Thanks.
>
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[go-nuts] Re: time.Parse with millisecond separated by colon
See https://golang.org/src/time/format.go?s=23626:23672#L249. The standard library is explicitly looking for the period. Your easiest solution would be to just write your own parser. On Monday, October 30, 2017 at 11:20:51 AM UTC-4, Diego Medina wrote: > > Hi, > > I need to parse datetime data given in a csv file, the format I get (I get > a lot of diff ones but the latest is): > > 20060102 15:04:05:000 > > but if I use that with time.Parse, it doesn't parse the millisecond part, > tells me: > > parsing time "20170628 12:11:00:103" as "20060102 15:04:05:000": cannot parse > "103" as ":000" > > > > if I change the format, from :000 to .000 and then change my source time, > to be 12:11:00.103 > > it does parse. Is there a way to avoid having to edit the source file, so > I can just take the datetime info as it is in the file? > > playground example: > > https://play.golang.org/p/cHTDxFYmrF > > Thanks > > Diego > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[go-nuts] Re: dynamic xml
You'll need to use an UnmarshalXML func for the params:
// Param is a tag w/ any name
type Param struct {
Namestring `xml:"-"`
Typestring `xml:"type,attr"`
MinOccurs int`xml:"minOccurs,attr"`
MaxOccurs int`xml:"maxOccurs,attr"`
Description string `xml:"description"`
}
// ParamList type for unmarhsal
type ParamList []Param
// UnmarshalXML for the win
func (pl *ParamList) UnmarshalXML(d *xml.Decoder, s xml.StartElement) error
{
tk, err := d.Token()
for err == nil {
switch t := tk.(type) {
case xml.StartElement:
param := Param{Name: t.Name.Local}
if err = d.DecodeElement(, ); err != nil {
return err
}
*pl = append(*pl, param)
}
if tk, err = d.Token(); err == io.EOF {
return nil
}
}
return err
}
// TopLevel is of course top level
type TopLevel struct {
Description string `xml:"description"`
Rights Rights `xml:"rights"`
Method []Method `xml:"method"`
}
// Method has request
type Method struct {
Namestring `xml:"name,attr"`
Description string `xml:"description"`
Rights []Right `xml:"rights"`
Request Request `xml:"request"`
ResponseResponse `xml:"response"`
}
// Right whatever
type Right struct {
Right string `xml:"right"`
}
// Request like Response
type Request struct {
Params ParamList `xml:"params"`
}
// Response like Request
type Response struct {
Params ParamList `xml:"params"`
}
// Rights
type Rights struct {
PrivLevel string `xml:"privLevel"`
}
On Wednesday, October 18, 2017 at 11:50:45 AM UTC-4, Jeffrey Smith wrote:
>
> I have a lot of XML documents that have sections in that contain tags that
> can be of any name but will contain type,minOccurs,maxOccurs and have a
> description inside it. For instance name,description,definition and id
> below.
>
>
>
>
>
> description number1
>
> user
>
>
> graphCreate API
>
>
>
>
> A friendly name to identify the graph
>
>
> Detailed description of the graph
>
>
> Specify the graph definition. i.e how this graph
> should be built.
>
>
>
>
>
>
> graph identifier.
>
>
>
>
>
>
> Whats the best way to parse this. So far I have but can't work out how to
> dynamically generate the struct to stuff this into. Any suggestions?
>
> type topLevel struct {
> Description string `xml:"description"`
> Rights rights `xml:"rights"`
> Method []method `xml:"method"`
> }
>
>
> type method struct {
> Namestring `xml:"name,attr"`
> Description string `xml:"description"`
> Rights []right `xml:"rights"`
> }
>
>
> type right struct {
> Right string `xml:"right"`
> }
>
>
> type request struct {
> }
>
>
> type rights struct {
> PrivLevel string `xml:"privLevel"`
> }
>
>
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[go-nuts] Re: dynamic xml
You'll need to use a custom UnmarshalXML func to handle this.
// TopLevel is of course top level
type TopLevel struct {
Description string `xml:"description"`
Rights Rights `xml:"rights"`
Method []Method `xml:"method"`
}
// Method has request
type Method struct {
Namestring `xml:"name,attr"`
Description string `xml:"description"`
Rights []Right `xml:"rights"`
Request Request `xml:"request"`
ResponseResponse `xml:"response"`
}
// Right whatever
type Right struct {
Right string `xml:"right"`
}
// Request like Response
type Request struct {
Params ParamList `xml:"params"`
}
// Response like Request
type Response struct {
Params ParamList `xml:"params"`
}
// ParamList type for unmarhsal
type ParamList []Param
// UnmarshalXML for the win
func (pl *ParamList) UnmarshalXML(d *xml.Decoder, s xml.StartElement) error
{
tk, err := d.Token()
for err == nil {
switch t := tk.(type) {
case xml.StartElement:
var param = Param{Name: t.Name.Local}
if err = d.DecodeElement(, ); err != nil {
return err
}
*pl = append(*pl, param)
}
tk, err = d.Token()
}
return err
}
// Param holds data
type Param struct {
Namestring `xml:"name"`
Typestring `xml:"type,attr"`
MinOccurs int`xml:"minOccurs,attr"`
MaxOccurs int`xml:"maxOccurs,attr"`
Description string `xml:"description"`
}
// Rights hmm
type Rights struct {
PrivLevel string `xml:"privLevel"`
}
On Wednesday, October 18, 2017 at 11:50:45 AM UTC-4, Jeffrey Smith wrote:
>
> I have a lot of XML documents that have sections in that contain tags that
> can be of any name but will contain type,minOccurs,maxOccurs and have a
> description inside it. For instance name,description,definition and id
> below.
>
>
>
>
>
> description number1
>
> user
>
>
> graphCreate API
>
>
>
>
> A friendly name to identify the graph
>
>
> Detailed description of the graph
>
>
> Specify the graph definition. i.e how this graph
> should be built.
>
>
>
>
>
>
> graph identifier.
>
>
>
>
>
>
> Whats the best way to parse this. So far I have but can't work out how to
> dynamically generate the struct to stuff this into. Any suggestions?
>
> type topLevel struct {
> Description string `xml:"description"`
> Rights rights `xml:"rights"`
> Method []method `xml:"method"`
> }
>
>
> type method struct {
> Namestring `xml:"name,attr"`
> Description string `xml:"description"`
> Rights []right `xml:"rights"`
> }
>
>
> type right struct {
> Right string `xml:"right"`
> }
>
>
> type request struct {
> }
>
> Enter code here...
>
>
> type rights struct {
> PrivLevel string `xml:"privLevel"`
> }
>
>
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