Package org.springframework.batch.item.file.mapping

Class PatternMatchingCompositeLineMapper<T>

java.lang.Object
org.springframework.batch.item.file.mapping.PatternMatchingCompositeLineMapper<T>
All Implemented Interfaces:
LineMapper<T>, org.springframework.beans.factory.InitializingBean
public class PatternMatchingCompositeLineMapper<T> extends Object implements LineMapper<T>, org.springframework.beans.factory.InitializingBean

A LineMapper implementation that stores a mapping of String patterns to delegate LineTokenizers as well as a mapping of String patterns to delegate FieldSetMappers. Each line received will be tokenized and then mapped to a field set.

Both the tokenizing and the mapping work in a similar way. The line will be checked for its matching pattern. If the key matches a pattern in the map of delegates, then the corresponding delegate will be used. Patterns are sorted starting with the most specific, and the first match succeeds.

Since:
2.0
Author:
Dan Garrette, Dave Syer, Mahmoud Ben Hassine
See Also:

  • Constructor Details

    • PatternMatchingCompositeLineMapper

      public PatternMatchingCompositeLineMapper()

  • Method Details

    • mapLine

      public T mapLine(String line, int lineNumber) throws Exception
      Description copied from interface: LineMapper
      Implementations must implement this method to map the provided line to the parameter type T. The line number represents the number of lines into a file the current line resides.
      Specified by:
      mapLine in interface LineMapper<T>
      Parameters:
      line - to be mapped
      lineNumber - of the current line
      Returns:
      mapped object of type T
      Throws:
      Exception - if error occurred while parsing.

    • afterPropertiesSet

      public void afterPropertiesSet() throws Exception
      Specified by:
      afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
      Throws:
      Exception

    • setTokenizers

      public void setTokenizers(Map<String,LineTokenizer> tokenizers)

    • setFieldSetMappers

      public void setFieldSetMappers(Map<String,FieldSetMapper<T>> fieldSetMappers)