Re: [Pharo-users] Instance of ByteArray did not understand #isByteString in ZnUTF8Encoder

Jan. 26, 2019


      BTW, ZTimezone in ZTimestamp does something similar to what I guess you want to do:

downloadFallbackZoneinfoDataset
	"Download a fallback copy of the zoneinfo dataset and return its location.
	See #fallbackZoneinfoDatasetURL for more info and a warning"
	
	| zipLocation zoneinfoLocation |
	zipLocation := self fallbackZoneinfoDatasetURL file asFileReference.
	zipLocation ensureDelete.
	ZnClient new 
		url: self fallbackZoneinfoDatasetURL; 
		downloadTo: zipLocation;
		close.
	zoneinfoLocation := zipLocation parent / 'zoneinfo'.
	zoneinfoLocation ensureDeleteAll.
	ZipArchive new
		readFrom: zipLocation;
		extractAllTo: zoneinfoLocation parent;
		close.
	^ zoneinfoLocation

where

fallbackZoneinfoDatasetURL
	"The URL to the ZIP archive zoneinfo.zip which is offered as a fallback for 
	systems (such as Windows) that do no have their own copy of this data. 
	Note that it is highly recommended that you use such a OS maintained dataset, 
	as this data is changed (being added to) each year."
	
	^ 'https://github.com/svenvc/ztimestamp/raw/master/rsrc/zoneinfo.zip' asUrl
...
On 26 Jan 2019, at 23:00, Sven Van Caekenberghe <sven@stfx.eu> wrote:
Hmm, the following all work for me (in Pharo 7.0.1 on macOS):
ZnClient new
  url: 'https://github.com/biosmalltalk/biopharo/raw/develop/test_files/BioSmalltalk...';
  get;
  yourself.
ZnClient new
  url: 'https://github.com/biosmalltalk/biopharo/raw/develop/test_files/BioSmalltalk...';
  get;
  contents.
ZnClient new
  get: 'https://github.com/biosmalltalk/biopharo/raw/develop/test_files/BioSmalltalk...'.
ZnClient new
  url: 'https://github.com/biosmalltalk/biopharo/raw/develop/test_files/BioSmalltalk...';
  downloadTo: '/tmp'.
$ ls -lah /tmp/BioSmalltalkTestFiles.zip 
-rw-r--r--@ 1 sven  wheel   5.3M Jan 26 22:57 /tmp/BioSmalltalkTestFiles.zip
$ file /tmp/BioSmalltalkTestFiles.zip 
/tmp/BioSmalltalkTestFiles.zip: Zip archive data, at least v2.0 to extract
...
On 26 Jan 2019, at 20:36, HernÃ¡n Morales Durand <hernan.morales@gmail.com> wrote:
Hi there,
In Pharo 7.0 I've encountered an error related with the new streams changes (https://github.com/pharo-open-documentation/pharo-wiki/blob/master/Migration...) while downloading a zip file. Problem is ZnUTF8Encoder expects a String, but my code which worked in Pharo 6 provides a ByteArray. I've isolated it in a reproducible way:
| webClient resp |
webClient := ZnClient new.
UIManager default informUserDuring: [ :bar | 
   bar label: 'Downloading resources for ' , self class printString.
   [ webClient
       signalProgress: true;
       get: 'https://github.com/biosmalltalk/biopharo/raw/develop/test_files/BioSmalltalk...' ]
   on: HTTPProgress , ZnEntityTooLarge
   do: [ : ex | 
       (ex isKindOf: ZnEntityTooLarge)
           ifTrue: [ ex resume ]
           ifFalse: [ 
               | progress |
               progress := ex.
               progress isEmpty
                   ifFalse: [
                       bar current: progress percentage.
                       progress total ifNotNil: [ :aTotalNumber | bar label: 'Downloading ' ] ].
               progress resume ] ] ].
(resp := webClient response) isSuccess
       ifTrue: [ 'output2.zip' asFileReference writeStreamDo: [ : stream | stream nextPutAll: resp contents ] ]
       ifFalse: [ self error: 'Cannot download resource files' ].
I also tried using #writeOn: on the response, but that also wrote the response header:
self response writeOn: 'test1.zip' asFileReference writeStream.
self response writeOn: 'test2.zip' asFileReference binaryWriteStream.
HTTP/1.1 200 OK
Via: 1.1 varnish
Strict-Transport-Security: max-age=31536000
...
PK    ÃÂ¸ Ã D               BioSmalltalkTestFiles/PK ÃÂ½U?+*8!"  K  /   BioSmalltalkTestFiles/A4A7DS6V01S-Alignment.xmlÃÂÃÅksÃâºH Ãâ ÃÂ¿Ã ÃÂ¯ÃÂ¨Ã Ãâ¡ÃÂ©Ã "ÃâÃÂ¹_ Ã ÃÂ¦: 0 R$`ÃÂ°jSS.,aÃâº
Any suggestion?
Cheers,
HernÃ¡n