Parsing X12 Documents

X12 is a EDI standard for business transactions which is popular in North America.
(EDI is  sending  formatted data, by agreed message standards, from one system to another system )

Describing X12 or EDI is so long.
In this post I will just tell about how to write a simple X12 object for parsing data.
X12 lines  are just separated values so an object below will represent a common X12 segment.

For ones dealing with same things below will make sense.
*** This is just for giving idea.

public class X12Segment 

{



   public static final String NAME_ISA = "ISA" ;



    public static final String NAME_GS = "GS" ;

//................................  ALL TAGS YOU NEED


    // protected String segmentSeparator = "\n" ;



    // protected String fieldSeparator = "*" ;



    protected YX12Config config ;



    // X12SectionName|field1|field2|field3...|fieldn~

    protected String line ;



    protected String segmentName ;



    protected String[ ] fields ;



    public X12Segment( String line, YX12Config config )

    {

        this.config = config ;



        this.init( line ) ;

    }



    public void init( String line )

    {

        String strDelim = ( isBlankTrim( this.config.getSegmentDelimiter( ) ) ? this.config.getNewLineStr( ) : this.config.getSegmentDelimiter( ) ) ;



       



        this.line = line.trim( ).split( "\\" + strDelim, -2 )[ 0 ] ;



        final String[ ] tmp = this.line.split( "\\" + this.config.getFieldDelimiter( ), -2 ) ;



        this.segmentName = tmp[ 0 ] ;



        this.fields = tmp ;

    }



    public boolean checkType( String type )

    {

        return type.equals( this.getSegmentName( ) ) ;

    }



    public int getFieldCount( )

    {

        return this.fields.length - 1 ;

    }



    public String getField( int index )

    {

        return index >= this.fields.length ? null : this.fields[ index ] ;

    }



    public String[ ] getFields( )

    {

        return this.fields ;

    }



    public void setFields( String[ ] fields )

    {

        this.fields = fields ;

    }



    public String getSegmentName( )

    {

        return this.segmentName ;

    }



    public void setSegmentName( String segmentName )

    {

        this.segmentName = segmentName ;

    }



    public YX12Config getConfig( )

    {

        return this.config ;

    }



    public void setConfig( YX12Config config )

    {

        this.config = config ;

    }



    public String getLine( )

    {

        return this.line ;

    }



    public void setLine( String line )

    {

        this.line = line ;

    }



    public String toString( YX12Config config )

    {

        StringBuilder sb = new StringBuilder( this.segmentName ) ;



        for( int i = 1; i < this.fields.length; ++i )

        {

            sb.append( config.getFieldDelimiter( ) ) ;

            sb.append( this.fields[ i ] ) ;

        }



        return sb.toString( ) ;

    }



    @Override

    public String toString( )

    {

        return toString( this.config ) ;

    }