So i've changed a csv to xls/xlsx but i'm getting one character per cell. I've used pipe(|) as a delimiter in my csv.
Here is one line from the csv:
4.0|sdfa#sdf.nb|plplplp|plplpl|plplp|1988-11-11|M|asdasd#sdf.ghgh|sdfsadfasdfasdfasdfasdf|asdfasdf|3.4253242E7|234234.0|true|true|
But in excel i'm getting as
4 . 0 | s d f a
Here's the code:
try {
String csvFileAddress = "manage_user_info.csv"; //csv file address
String xlsxFileAddress = "manage_user_info.xls"; //xls file address
HSSFWorkbook workBook = new HSSFWorkbook();
HSSFSheet sheet = workBook.createSheet("sheet1");
String currentLine=null;
int RowNum=0;
BufferedReader br = new BufferedReader(new FileReader(csvFileAddress));
while ((currentLine = br.readLine()) != null) {
String str[] = currentLine.split("|");
RowNum++;
HSSFRow currentRow=sheet.createRow(RowNum);
for(int i=0;i<str.length;i++){
currentRow.createCell(i).setCellValue(str[i]);
}
}
FileOutputStream fileOutputStream = new FileOutputStream(xlsxFileAddress);
workBook.write(fileOutputStream);
fileOutputStream.close();
System.out.println("Done");
} catch (Exception ex) {
System.out.println(ex.getMessage()+"Exception in try");
}
The pipe symbol must be escaped in a regular expression:
String str[] = currentLine.split("\\|");
It is a logical operator (quote from the Javadoc of java.util.regex.Pattern):
X|Y Either X or Y
Related
All,
I am using a Spring boot application to store data in DB. I am getting this data from IBM MQ through Kafka topic.
I am getting messages in EBCDIC format, so used cobol copybook, JRecord, cb2xml jars to convert to readable format and store in DB.
Now i am getting another file also in the same manner, but after conversion the data looks like this:
10020REFUNDONE
10021REFUNDTWO ·" ÷/
10022REFUNDTHREE oú^ "
10023REFUNDFOUR ¨jÄ ò≈
Here is how i am converting to readable format from ebcdic:
AbstractLineReader reader = null;
StringBuffer finalBuffer = new StringBuffer();
try {
String copybook = "/ds_header.cbl";
reader = CustomCobolProvider.getInstance().getLineReader(copybook, Convert.FMT_MAINFRAME, new BufferedInputStream(new ByteArrayInputStream(salesData)));
AbstractLine line;
while ((line = reader.read()) != null) {
if (null != line.getFieldValue(REC_TYPE)){
finalBuffer.append(line.getFullLine());
}
}
}
and this is my getLineReader method:
public AbstractLineReader getLineReader(String copybook, int numericType, InputStream fileStream) throws Exception {
String font = "";
if (numericType == 1) {
font = "cp037";
}
InputStream stream = CustomCobolProvider.class.getResourceAsStream(copybook);
if(stream == null ) throw new RuntimeException("Can't Load the Copybook Metadata file from Resource....");
LayoutDetail copyBook = ((ExternalRecord)this.copybookInt.loadCopyBook(stream, copybook, CopybookLoader.SPLIT_REDEFINE, 0, font, CommonBits.getDefaultCobolTextFormat(), Convert.FMT_MAINFRAME, 0, (AbsSSLogger)null).setFileStructure(Constants.IO_FIXED_LENGTH)).asLayoutDetail();
AbstractLineReader ret = LineIOProvider.getInstance().getLineReader(copyBook, (LineProvider)null);
ret.open(fileStream, copyBook);
return ret;
}
I am stuck here with the numeric conversion, i got to know it is coming in packed decimal.
I have nil knowledge on cobol and mainframe, referred few sites and got to know how to convert from ebcdic to readable format. Please help!
The problem is getFullLine() method does not do any field translation; you need to access individual fields. You can use the line.getFieldIterator(0) to get a field iterator for the line.
Also unless you are using an ancient version of JRecord, you are better off using the JRecordInterface1 class.
Some thing like the following should work:
StringBuffer finalBuffer = new StringBuffer();
try {
ICobolIOBuilder iob = JRecordInterface1.COBOL .newIOBuilder(copybookName)
.setFont("cp037")
.setFileOrganization(Constants.IO_FIXED_LENGTH)
;
AbstractLineReader reader = iob.newReader(dataFile);
while ((line = reader.read()) != null) {
String sep = "";
for (AbstractFieldValue fv : line.getFieldIterator(0)) {
finalBuffer.append(sep).append(fv);
sep = "\t";
}
finalBuffer.append("\n");
}
reader.close();
} catch (Exception e) {
// what ever ....
}
Other points
With MQ data source you do not need to create line-readers. You can create lines directly from a byte array:
ICobolIOBuilder iob = JRecordInterface1.COBOL .newIOBuilder(copybookName)
.setFont("cp037")
.setFileOrganization(Constants.IO_FIXED_LENGTH)
;
AbstractLine line = iob.newLine(byteArrayFromMq);
for (AbstractFieldValue fv : line.getFieldIterator(0)) {
// what ever
}
I am new to C# coding and I have really tried to find an answer in any forum. I am using CSVHelper to read a CSV file and I want to skip a certain number of lines from the beginning of the file to a certain word. Now my code gives the following error message:
System.ObjectDisposedException: "Cannot read from a closed TextReader." Help me please :
private void cmdLoad_Click(object sender, EventArgs e)
{
OpenFileDialog OFDReader = new OpenFileDialog()
{ };
if (OFDReader.ShowDialog() == DialogResult.OK)
{
txtbox.Text = OFDReader.FileName;
}
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
Delimiter = ";", // Set delimiter
HasHeaderRecord = true,
//ShouldSkipRecord = (row) => row.Record[0].Contains("Date/Time"),
};
using (var reader = new StreamReader(OFDReader.FileName))
using (var csv = new CsvReader(reader, config))
{
//search for Line to start reader
string record = "Date/Time";
while (csv.Read())
{
if (csv.Read().Equals(record))
{
csv.Read();
csv.ReadHeader();
break;
}
using (var dr = new CsvDataReader(csv))
{
var dt = new DataTable();
dt.Load(dr);
dataGridView1.DataSource = dt; // Set datagridview source to datatable
}
}
}
}
}
}
I believe you just need to break out of the while (csv.Read()) when you find the "Date/Time" text. The CsvReader will do the rest from there.
var config = new CsvConfiguration(CultureInfo.InvariantCulture)
{
Delimiter = ";", // Set delimiter
HasHeaderRecord = true
};
using (var reader = new StreamReader(OFDReader.FileName))
using (var csv = new CsvReader(reader, config))
{
//search for Line to start reader
string record = "Date/Time";
while (csv.Read())
{
if (csv.Context.Parser.RawRecord.Trim() == record)
{
break;
}
}
using (var dr = new CsvDataReader(csv))
{
var dt = new DataTable();
dt.Load(dr);
dt.Dump();
}
}
My text file name pass has text 1234 but when I pick this text from file and compare with string epass which is also 1234 using the code below it cannot match it. Why are there two strings not equal?
try {
InputStream fr = getResources().openRawResource(R.raw.pass);
BufferedReader br = new BufferedReader(new InputStreamReader(fr));
String s=br.readLine().toString().trim();
if(epass.equals(s))
{
t.setText("");
Intent main= new Intent(getApplicationContext(),MainActivity.class);
startActivity(main);
this.finish();
}
else
{
show.setText("Wrong Passcode");
show.setTextColor(Color.RED);
t.setText("");
epass="";
}
epass="";
}
catch(IOException ex)
{
}
if you insert the follwing code after String s=br.readLine().toString().trim();, what is the output?
System.out.println("'" + s + "'");
System.out.println("'" + epass + "'");
maybe there is problem with an end-of-line character or something similar
String selectTableSQL = "select JobID, MetadataJson from raasjobs join metadata using (JobID) where JobCreatedDate > '2014-07-01';";
File file = new File("/users/t_shetd/file.txt");
try {
dbConnection = getDBConnection();
statement = dbConnection.createStatement();
System.out.println(selectTableSQL);
// execute select SQL stetement
ResultSet rs = statement.executeQuery(selectTableSQL);
if (!file.exists()) {
file.createNewFile();
}
FileWriter fw = new FileWriter(file.getAbsoluteFile());
BufferedWriter bw = new BufferedWriter(fw);
while (rs.next()) {
String JobID = rs.getString("JobID");
String Metadata = rs.getString("MetadataJson");
bw.write(selectTableSQL);
bw.close();
System.out.println("Done");
// Now i am only getting the output done
If I understand your question, then this
while (rs.next()) {
String JobID = rs.getString("JobID");
String Metadata = rs.getString("MetadataJson");
bw.write(selectTableSQL);
bw.close();
System.out.println("Done");
}
Should be something like (following Java capitalization conventions),
while (rs.next()) {
String jobId = rs.getString("JobID");
String metaData = rs.getString("MetadataJson");
bw.write(String.format("Job ID: %s, MetaData: %s", jobId, metaData));
}
bw.close(); // <-- finish writing first!
System.out.println("Done");
In your version, you close the output after printing the first line from the ResultSet. After that, nothing else will write (because the File is closed).
How do i replace a variable defined in a file (a.xml) after the file is read into Jmeter ?
eg. a.xml has a content.
<Shipment Action="MODIFY" OrderNo="${vOrderNo}" >
The entire file is read into a string using
str_Input=${__FileToString(/a.xml)}
In the Jmx file, a http Request is made to get output from a webservice as
Using Xpath Extractor the value of OrderNo is read into a Variable vOrderNo.
Now, wanted to use the value of variable vOrderNo in the str_Input.. ? How do i ?
You can easily achieve this using beanshell (~java) code from any jmeter's sampler which allows beanshell code execution - BeanShell Sampler e.g..
The following works:
import java.io.*;
try
{
// reading file into buffer
StringBuilder data = new StringBuilder();
BufferedReader in = new BufferedReader(new FileReader("d:\\test.xml"));
char[] buf = new char[1024];
int numRead = 0;
while ((numRead = in.read(buf)) != -1) {
data.append(buf, 0, numRead);
}
in.close();
// replacing stub with actual value
String vOrderNo = vars.get("vOrderNo");
String temp = data.toString().replaceAll("\\$\\{vOrderNo\\}", vOrderNo);
// writing back into file
Writer out = new BufferedWriter(new FileWriter("d:\\test.xml"));
out.write(temp);
out.close();
}
catch (Exception ex) {
IsSuccess = false;
log.error(ex.getMessage());
System.err.println(ex.getMessage());
}
catch (Throwable thex) {
System.err.println(thex.getMessage());
}
This code doesn't require read file into string via ${__FileToString(...)}.
As well, you can combine both methods.