f_get_dama_xml: Get '.xml' within 'DataMashup'

In pbixr: Access Data and Metadata from 'Microsoft' 'Power BI' Documents

Description

The byte sequence of 'DataMashup' within a '.pbix' is retrieved and the '.xml' is extracted.

Usage

f_get_dama_xml(input_file_pbix, xml_start, xml_end)

Arguments

input_file_pbix	Path of the input '.pbix'.
xml_start	Start position of '.xml'
xml_end	End position of '.xml'

Value

The '.xml' Within 'DataMashup'.

Author(s)

Don Diproto

See Also

Uses: f_get_dama_index, f_get_dama_file.

Examples

## Not run: 
# Get dummy data ------------------------------------------------------------
# Create a temporary directory
temp_dir <- file.path(tempdir(),"functionTest")
if(!dir.exists(temp_dir)) {
	dir.create(temp_dir)
}
sample_file_name <- "OR_sample_func.pbix"
pathFileSample <- file.path(temp_dir, sample_file_name)

# See if dummy data already exists in temporary directory
parent_temp_dir <- dirname(temp_dir)
existing_file <- list.files(parent_temp_dir,
pattern = sample_file_name, recursive = TRUE, full.names = TRUE)

# Download the sample .pbix if it doesn't exist
if (length(existing_file) == 0) {
   url_pt1 <- "https://github.com/KoenVerbeeck/PowerBI-Course/blob/"
   url_pt2 <- "master/pbix/TopMovies.pbix?raw=true"
   url <- paste0(url_pt1, url_pt2)
   req <- download.file(url, destfile = pathFileSample, mode = "wb")
} else {
   pathFileSample <- existing_file[1]
}
# Do stuff ------------------------------------------------------------------

# Get the start and end positions
test <- f_get_dama_xml_details(pathFileSample)
xml_start <- (test[[1]][1]/2) + 1
xml_end <- test[[3]][1]
# Run the function
output <- f_get_dama_xml(pathFileSample, xml_start, xml_end)
  
## End(Not run)

pbixr documentation built on Oct. 27, 2020, 5:07 p.m.