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@Brideau
Last active November 25, 2017 20:27
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Using ogr2ogr from Scala
// If you need to add additional parameters, as is the case if creating a
// CSV file, you can use the -lco flag multiple times
val outPathCsv = Paths.get("temp", "Canada3573Csv", "Canada3573.csv").toAbsolutePath
val cmdCsv = Array("-f", "CSV", outPathCsv.toString, inPath.toString,
"-lco", "GEOMETRY=AS_WKT",
"-lco", "CREATE_CSVT=YES",
"-lco", "SEPARATOR=SEMICOLON"
)
convertUsingOgr2Ogr(outPathCsv, cmdCsv).onComplete{
case Success(outPath) => println("Shapefile conversion successful. File is located at " + outPath)
case Failure(ex) => println("Shapefile conversion failed with error: " + ex.getMessage)
}
resolvers += "Boundless" at "http://repo.boundlessgeo.com/main/"
libraryDependencies += "org.gdal" % "gdal" % "2.2.1"
// These let you enter input in the terminal if running via SBT
fork in run := true
connectInput in run := true
// Build the paths to the input and output files. You could also do this as
// Paths.get("/some/path/to/a/file.gpkg") if you don't care about this working
// across operating systems
val inPath = Paths.get("src", "main", "resources", "Canada3573.gpkg").toAbsolutePath
val outPathShp = Paths.get("temp", "Canada3573Shp", "Canada3573.shp").toAbsolutePath
// Build your command, putting each part of the command in a separate string
// stored as elements in an array
val cmdShp = Array("-f", "ESRI Shapefile", outPathShp.toString, inPath.toString)
// Execute the conversion asynchronously and print a success/failure message
convertUsingOgr2Ogr(outPathShp, cmdShp).onComplete{
case Success(outPath) => println("Shapefile conversion successful. File is located at " + outPath)
case Failure(ex) => println("Shapefile conversion failed with error: " + ex.getMessage)
}
def convertUsingOgr2Ogr(outPath: Path, cmd: Array[String]): Future[Path] = Future {
println("Starting conversion using ogr2ogr")
// Create the path to hold the file if it doesn't exist. Handy for keeping
// Shapefiles organized in their own sub-folders.
Files.createDirectories(outPath.toAbsolutePath.getParent)
ogr2ogr.execute(cmd)
// Return the path of the newly created file, out of convenience
outPath
}
import java.nio.file._
import org.gdal.apps.ogr2ogr
import scala.io.StdIn
import scala.util.{Failure, Success}
import scala.concurrent.ExecutionContext.Implicits.global
import scala.concurrent.Future
// More code above...
public static void execute(String[] args)
{
String pszFormat = "ESRI Shapefile";
String pszDataSource = null;
String pszDestDataSource = null;
Vector papszLayers = new Vector();
// More code below...
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