FlatPack Examples

Check out the JavaDoc here

Also look at the Project Reports menu on the left for project specific items, unit tests, QA etc.

The Examples

All examples are in the com.pz.reader.examples sub-directories. There is an application to run these, com.px.reader.examples.Examples but the easiest way is to run the run-examples.bat in the target directory after build via Maven:

Menu Options
    1) CSVTestFileCreator                                 8) FixedLengthHeaderAndTrailer
    2) CSVHeaderAndTrailer                                9) LargeDelimitedWithPZMap
    3) CSVPerformanceTest                                 10) LargeFixedLengthWithPZMap
    4) DelimitedWithPZMap                                 11) CSVLarge
    5) DelimitedWithPZMapErrors                           12) LowLevelParse
    6) DelimitedFileExportToExcel                         13) DelimitedMultiLine
    7) FixedLengthWithPZMap                               14) NumericsAndDates
   15) Who you gonna call?                                0) Exit
Enter your choice: (default:-1)
  1. ...createsamplecsv.CSVTestFileCreator.java Create sample CSV
  2. ...csvheaderandtrailer.CSVHeaderAndTrailer.java This shows the ability to parse header and trailer records out of a file.
  3. ...csvperformancetest.CSVPerformanceTest.java
  4. ...delimitedcolumnnamesinfile.DelimitedColumnNamesInFile.java
  5. ...delimiteddynamiccolumns.DelimitedWithPZMap.java
  6. ...delimiteddynamiccolumnswitherrors.DelimitedWithPZMapErrors.java
  7. ...exporttoexcel.DelimitedFileExportToExcel.java
  8. ...fixedlengthdynamiccolumns.FixedLengthWithPZMap.java
  9. ...fixedlengthheaderandtrailer.FixedLengthHeaderAndTrailer.java
  10. ...largedataset.delimiteddynamiccolumns.DelimitedWithPZMap.java
  11. ...largedataset.fixedlengthdynamiccolumns.FixedLengthWithPZMap.java
  12. ...largedataset.largecsvperformancetest.CSVLarge.java
  13. ...lowlevelparse.LowLevelParse.java
  14. ...multilinedelimitedrecord.DelimitedMultiLine.java
  15. ...numericsanddates.NumericsAndDates.java

CSVTestFileCreator

    
This utility can be used to create a sample CSV file for testing the parser.  In the 
ExecuterSample.bat file, there are 2 parameters.  

param1 = # cols to make | param2 = #rows to make

The following line would create a csv file with 10 columns and 100000 rows:

CSVHeaderAndTrailer

    
File Type:  Comma Delimted With Text Qualified By "'s

This shows the ability to parse header and trailer records out of a file.

CSVPerformanceTest

    
File Type:  Must Be A CSV file

This is meant to be a performance test.  The sample file contains 10 columns and 100,000 rows.

Performance Tests
------------------------------
    Machine Specs:  P4 1.7 GHZ 256MB RAM  | Parse Time: 45-48 secs.
    Machine Specs:  P4 2.9 GHZ 1 GB RAM  | Parse Time: 23-25 secs.

Feel free to post additional performance tests in the SF forums :)

There is a settings.properties file in this directory.  This file has 2 different options:

verbose - can be set to true/false.  If set to true, the data in the file will be ran to the screen
after the parse.  There is a 2 second pause before data start to get spit to the screen.  This is 
to allow the user to see the total time it took to parse the file.

csvFile - set this to the path of the CSV file to be read in.  Feel free to test this against your own
CSV files.

This particular example uses the first record in the file for the column names.  

Depending on the size of the file being parsed, the -Xmx parameter may need to be adjusted.  This
is the max memory setting for the JVM to use.  This parameter is set in the ExecuteSample.bat file
and is currently set to 128mb.  This needs to be adjusted if OutOfMemory errors occur.  

DelimitedColumnNamesInFile

    
File Type:  Comma Delimted With Text Qualified By "'s

This sample uses the column names which are contained in the CSV file instead
of relying on a mapping to tell the parser what the column names are.

This sample also re-orders the file by CITY ASC, LASTNAME DESC

There have also been " 's and , 's added to the text on one of the records
to show the parsing abilities of the API.

DelimitedWithPZMap

    
File Type:  Comma Delimted With Text Qualified By "'s

This sample dynamically reads the column names from the DataSet and evaluates 
the values of each column.  Making use of the getColumns() method.

This sample also re-orders the file by CITY ASC, LASTNAME DESC

There have also been " 's and , 's added to the text on one of the records
to show the parsing abilities of the API.

DelimitedWithPZMapErrors

    
File Type:  Comma Delimted With Text Qualified By "'s

This sample contains errors in the PEOPLE-CommaDelimitedWithQualifier.txt
2 Lines in the file contain more columns then we have declared in the 
PEOPLE-Delimited.pzmap.xml
This demonstrates how to check for errors that happened while reading the file.

This sample dynamically reads the column names from the DataSet and evaluates 
the values of each column.  Making use of the getColumns() method.

This sample also re-orders the file by CITY ASC, LASTNAME DESC

There have also been " 's and , 's added to the text on one of the records
to show the parsing abilities of the API.

DelimitedFileExportToExcel

    
File Type:  Comma Delimted With Text Qualified By "'s

This sample re-orders the file by CITY ASC, LASTNAME DESC and exports to "MyExcelExport.xls"

There have also been " 's and , 's added to the text on one of the records
to show the parsing abilities of the API.

FixedLengthWithPZMap

    
File Type:  Fixed Width Text

This sample dynamically reads the column names from the DataSet and evaluates 
the values of each column.  Making use of the getColumns() method.

This sample also re-orders the file by CITY ASC, LASTNAME DESC

FixedLengthHeaderAndTrailer

    
File Type:  Fixed Width Text

This sample dynamically reads the column names from the DataSet and evaluates 
the values of each column.  Making use of the getColumns() method.

This sample also re-orders the file by CITY ASC, LASTNAME DESC

DelimitedWithPZMap

    
File Type:  Comma Delimted With Text Qualified By "'s

This sample dynamically reads the column names from the LargeDataSet and evaluates 
the values of each column.  Making use of the getColumns() method.

There have also been " 's and , 's added to the text on one of the records
to show the parsing abilities of the API.

FixedLengthWithPZMap

    
File Type:  Fixed Width Text

This sample dynamically reads the column names from the DataSet and evaluates 
the values of each column.  Making use of the getColumns() method.

This sample also re-orders the file by CITY ASC, LASTNAME DESC

CSVLarge

    
File Type:  Must Be A CSV file

This is meant to be a performance test for large files.  This will make use of the new LargeDataSet class introduced
in 2.2.  A println will be run to the screen for every 2500 records parsed and looped through in the file.

This class differs from the DataSet class where the file is no longer read into memory.  

There is a settings.properties file in this directory. 

csvFile - set this to the path of the CSV file to be read in.  Feel free to test this against your own
CSV files.

This particular example uses the first record in the file for the column names.  

Depending on the size of the file being parsed, the -Xmx parameter may need to be adjusted.  This
is the max memory setting for the JVM to use.  This parameter is set in the ExecuteSample.bat file
and is currently set to 128mb.  This needs to be adjusted if OutOfMemory errors occur.  

LowLevelParse

    
File Type:  Comma Delimted With Text Qualified By "'s

This demonstrates how to perform lower level parsing.  The DataSet
class is bypassed alltogether and a buffered reader is used instead.
This sample makes use of parsing utilities which are provided through
the ParserUtils class.

DelimitedMultiLine

    
File Type:  Comma Delimted With Text Qualified By "'s

This sample dynamically reads the column names from the DataSet and evaluates 
the values of each column.  Making use of the getColumns() method.

This sample also re-orders the file by CITY ASC, LASTNAME DESC

There have also been " 's and , 's added to the text on one of the records
to show the parsing abilities of the API.

NumericsAndDates

    
File Type:  Comma Delimted With Text Qualified By "'s

This sample demonstrates how values can be pulled out as Strings,double's,int's,
and Date's from the file.