Package org.genesys.geotools.service

Class HeaderUtils

java.lang.Object

org.genesys.geotools.service.HeaderUtils

public abstract class HeaderUtils
extends Object

Helper for CSV header management.

Constructor Summary

Constructors

Constructor	Description
HeaderUtils()

Method Summary

Modifier and Type	Method	Description
static Map<String,Integer>	makeSourceMapping(String[] headers, String[] supportedHeaders)	We are mostly interested in only a few supported headers.
static List<Integer>	mapHeaderPositions(String[] headers)	Map CSV headers to their positions.
static void	throwIfHeaderFound(String[] headers, String[] notAllowedHeaders)	Check for invalid headers and throw IOException if one is found.
static void	throwIfHeaderNotFound(String[] headers, String[] requiredHeaders)	Check for required headers and throw IOException if one is missing.
static String[]	toOutputLine(String[] nextLine, List<String> outputHeaders, List<Integer> outputMapping)	Copy data from input CSV line to output CSV line with appropriate destination mapping.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HeaderUtils

public HeaderUtils()

Method Detail

throwIfHeaderFound

public static void throwIfHeaderFound(String[] headers,
                                      String[] notAllowedHeaders)
                               throws IOException

Check for invalid headers and throw IOException if one is found.

Parameters:

headers - input headers

notAllowedHeaders - array of unacceptable headers

Throws:

IOException - when one unacceptable header is found

throwIfHeaderNotFound

public static void throwIfHeaderNotFound(String[] headers,
                                         String[] requiredHeaders)
                                  throws IOException

Check for required headers and throw IOException if one is missing.

Parameters:

headers - input headers

requiredHeaders - the array of required headers

Throws:

IOException - when one unacceptable header is found

mapHeaderPositions

public static List<Integer> mapHeaderPositions(String[] headers)

Map CSV headers to their positions.

Parameters:

headers - CSV header list

Returns:

a new List with header indexes

makeSourceMapping

public static Map<String,Integer> makeSourceMapping(String[] headers,
                                                          String[] supportedHeaders)

We are mostly interested in only a few supported headers. Get their indexes.

Parameters:

headers - the headers

supportedHeaders - Array of supported headers

Returns:

Map of positions of supported headers

toOutputLine

public static String[] toOutputLine(String[] nextLine,
                                    List<String> outputHeaders,
                                    List<Integer> outputMapping)

Copy data from input CSV line to output CSV line with appropriate destination mapping.

Parameters:

nextLine - source line

outputHeaders - output headers

outputMapping - mapping of output columns

Returns:

the output CSV line filled with data from input CSV line