Here a code example
IMendixObject mendixObject = Core.instantiate(getContext(), "moduleName.entityName");
Regards,
Ronald
[EDIT]
Complete example to write some attributes to a file.
// BEGIN USER CODE
Integer attribute11Length = 3;
Integer attribute2Length = 6;
Integer attribute3Length = 50;
Integer attribute4Length = 1;
/* Begin of file writer code */
Writer writer = null;
String EOL = "\r\n";
try {
File file = new File(ExportPad);
writer = new BufferedWriter(new FileWriter(file));
/* Iterate over transactions and write to buffer */
for ( modulename.proxies.mendixEntity transaction : entityList) {
writer.write(padString(transaction.getattribute1(), attribute1Length));
writer.write(padString(transaction.getattribute2(), attribute2Length));
writer.write(padString(transaction.getattribute3(), attribute3Length));
writer.write(padString(transaction.getattribute4(), attribute4lLength));
writer.write(EOL);
}
/* End iterate over transactions */
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (writer != null) {
writer.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
/* End of file writer code */
IMendixObject mendixObject = Core.instantiate(getContext(), "moduleName.entityName");
String text = new Scanner( new File(ExportPad) ).useDelimiter("\\A").next();
InputStream inputStream = new ByteArrayInputStream(text.getBytes());
Core.storeFileDocumentContent(getContext(), mendixObject, inputStream);
return mendixObject;
// END USER CODE
// BEGIN EXTRA CODE
public static String padString(String s, int n) {
return String.format("%1$-" + n + "s", s);
}
// END EXTRA CODE
The ideal would be to be able to get the outputstream
The following creates a 1k x 32k (256Mb) in approximately 15 seconds [local/onprem only]
var ctx=root.getContext();
var delim="\\";
var start=new Date();
var obj_fd=com.mendix.core.Core.instantiate(ctx,"Imports.FileDocument");
obj_fd.setValue(
ctx,
"Name",
"Test - FOO.dat"
);
//ensure its down on disk
com.mendix.core.Core.storeFileDocumentContent(
ctx,
obj_fd,
"Test - FOO - "+new Date().toString()+".dat",
new java.io.ByteArrayInputStream(
new java.lang.String("").getBytes(java.nio.charset.StandardCharsets.UTF_8)
)
);
com.mendix.core.Core.commit(ctx,obj_fd);
var path=
[
com.mendix.core.Core.getConfiguration().getBasePath(),
"data",
"files",
obj_fd.getValue(ctx,"__UUID__").substr(0,2),
obj_fd.getValue(ctx,"__UUID__").substr(2,2),
obj_fd.getValue(ctx,"__UUID__")
].join(delim)
;
var writer = new java.io.FileWriter(new java.io.File(path));
var bufferedWriter = new java.io.BufferedWriter(writer,1024);
ncol=Math.pow(2,10);
nrow=Math.pow(2,15);
for(var irow=0;irow<nrow;irow++){
for(var icol=0;icol<ncol;icol++){
writer.write(
new String(Math.floor(Math.random()*4096)).paddingLeft(" ")
);
}
writer.write(
"\n"
);
}
writer.flush();
writer.close();
alert(path);
var end=new Date();
alert(
'Created File - '+(end-start)/1000+' s'
);
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