package com.acumenvelocity.ath.steps;
   
   import com.acumenvelocity.ath.common.OkapiUtil;
   
   import net.sf.okapi.common.Event;
   import net.sf.okapi.common.pipeline.BasePipelineStep;
   import net.sf.okapi.common.resource.ITextUnit;
   import net.sf.okapi.common.resource.TextContainer;
   import net.sf.okapi.common.resource.TextFragment;
  import net.sf.okapi.common.resource.TextFragmentUtil;
  
  public class TargetRemovalStep extends BasePipelineStep {
  
    @Override
    public String getName() {
      return "Target Removal";
    }
  
    @Override
    public String getDescription() {
      return "Places a dash character in the target, copies source codes to the target";
    }
  
    @Override
    protected Event handleTextUnit(Event event) {
      ITextUnit tu = event.getTextUnit();
      TextContainer source = tu.getSource();
      TextFragment src = source.getUnSegmentedContentCopy();
      TextContainer target = tu.getTarget(getTargetLocale());
  
      if (target != null) {
        target.clear();
        target.append("-");
        TextFragment trg = target.getUnSegmentedContentCopy();
  
        TextFragmentUtil.alignAndCopyCodeMetadata(src, trg, true, true);
  
        // Rearrange opening and closing codes
        OkapiUtil.rearrangeCodes(src.getCodes(), trg);
        target.setContent(trg);
      }
  
      return super.handleTextUnit(event);
    }
  }