mv__createfolder_8sas_source.html

/**

  @file mv_createfolder.sas

  @brief Creates a viya folder if that folder does not already exist

  @details Creates a viya folder by checking if each parent folder exists, and

  recursively creating children if needed.

  Usage:


      %mv_createfolder(path=/Public)


  @param [in] path= The full path of the folder to be created

  @param [in] access_token_var= The global macro variable to contain the access

    token, if using authorization_code grant type.

  @param [in] grant_type= (sas_services) Valid values are:

    @li password

    @li authorization_code

    @li sas_services


  @param [in] mdebug=(0) set to 1 to enable DEBUG messages


  @version VIYA V.03.04

  @author Allan Bowe, source: https://github.com/sasjs/core


  <h4> SAS Macros </h4>

  @li mp_abort.sas

  @li mf_getuniquefileref.sas

  @li mf_getuniquelibref.sas

  @li mf_isblank.sas

  @li mf_getplatform.sas

  @li mfv_existfolder.sas


**/


%macro mv_createfolder(path=

    ,access_token_var=ACCESS_TOKEN

    ,grant_type=sas_services

    ,mdebug=0

  );

%local dbg;

%if &mdebug=1 %then %do;

  %put &sysmacroname entry vars:;

  %put _local_;

%end;

%else %let dbg=*;


%if %mfv_existfolder(&path)=1 %then %do;

  %put &sysmacroname: &path already exists;

  %return;

%end;


%local oauth_bearer;

%if &grant_type=detect %then %do;

  %if %symexist(&access_token_var) %then %let grant_type=authorization_code;

  %else %let grant_type=sas_services;

%end;

%if &grant_type=sas_services %then %do;

  %let oauth_bearer=oauth_bearer=sas_services;

  %let &access_token_var=;

%end;


%mp_abort(iftrue=(&grant_type ne authorization_code and &grant_type ne password

    and &grant_type ne sas_services

  )

  ,mac=&sysmacroname

  ,msg=%str(Invalid value for grant_type: &grant_type)

)


%mp_abort(iftrue=(%mf_isblank(&path)=1)

  ,mac=&sysmacroname

  ,msg=%str(path value must be provided)

)

%mp_abort(iftrue=(%length(&path)=1)

  ,mac=&sysmacroname

  ,msg=%str(path value must be provided)

)


options noquotelenmax;


%local subfolder_cnt; /* determine the number of subfolders */

%let subfolder_cnt=%sysfunc(countw(&path,/));


%local href; /* resource address (none for root) */

%let href="/folders/folders?parentFolderUri=/folders/folders/none";


%local base_uri; /* location of rest apis */

%let base_uri=%mf_getplatform(VIYARESTAPI);


%local x newpath subfolder;

%do x=1 %to &subfolder_cnt;

  %let subfolder=%scan(&path,&x,%str(/));

  %let newpath=&newpath/&subfolder;


  %local fname1;

  %let fname1=%mf_getuniquefileref();


  %put &sysmacroname checking to see if &newpath exists;

  proc http method='GET' out=&fname1 &oauth_bearer

      url="&base_uri/folders/folders/@item?path=&newpath";

  %if &grant_type=authorization_code %then %do;

      headers "Authorization"="Bearer &&&access_token_var";

  %end;

  run;

  %local libref1;

  %let libref1=%mf_getuniquelibref();

  libname &libref1 JSON fileref=&fname1;

  %mp_abort(

    iftrue=(

      &SYS_PROCHTTP_STATUS_CODE ne 200 and &SYS_PROCHTTP_STATUS_CODE ne 404

    )

    ,mac=&sysmacroname

    ,msg=%str(&SYS_PROCHTTP_STATUS_CODE &SYS_PROCHTTP_STATUS_PHRASE)

  )

  %if &mdebug=1 %then %do;

    %put &sysmacroname following check to see if &newpath exists:;

    %put _local_;

    data _null_;

      set &fname1;

      input;

      putlog _infile_;

    run;

  %end;

  %if &SYS_PROCHTTP_STATUS_CODE=200 %then %do;

    %*put &sysmacroname &newpath exists so grab the follow on link ;

    data _null_;

      set &libref1..links;

      if rel='createChild' then

        call symputx('href',quote(cats("&base_uri",href)),'l');

    run;

  %end;

  %else %if &SYS_PROCHTTP_STATUS_CODE=404 %then %do;

    %put &sysmacroname &newpath not found - creating it now;

    %local fname2;

    %let fname2=%mf_getuniquefileref();

    data _null_;

      length json $1000;

      json=cats("'"

        ,'{"name":'

        ,quote(trim(symget('subfolder')))

        ,',"description":'

        ,quote("&subfolder, created by &sysmacroname")

        ,',"type":"folder"}'

        ,"'"

      );

      call symputx('json',json,'l');

    run;


    proc http method='POST'

        in=&json

        out=&fname2

        &oauth_bearer

        url=%unquote(%superq(href));

        headers

      %if &grant_type=authorization_code %then %do;

                "Authorization"="Bearer &&&access_token_var"

      %end;

                'Content-Type'='application/vnd.sas.content.folder+json'

                'Accept'='application/vnd.sas.content.folder+json';

    run;

    %put &=SYS_PROCHTTP_STATUS_CODE;

    %put &=SYS_PROCHTTP_STATUS_PHRASE;

    %mp_abort(iftrue=(&SYS_PROCHTTP_STATUS_CODE ne 201)

      ,mac=&sysmacroname

      ,msg=%str(&SYS_PROCHTTP_STATUS_CODE &SYS_PROCHTTP_STATUS_PHRASE)

    )

    %local libref2;

    %let libref2=%mf_getuniquelibref();

    libname &libref2 JSON fileref=&fname2;

    %put &sysmacroname &newpath now created. Grabbing the follow on link ;

    data _null_;

      set &libref2..links;

      if rel='createChild' then do;

        call symputx('href',quote(cats("&base_uri",href)),'l');

        &dbg put (_all_)(=);

      end;

    run;


    libname &libref2 clear;

    filename &fname2 clear;

  %end;

  filename &fname1 clear;

  libname &libref1 clear;

%end;

%mend mv_createfolder;