org.simpleflatmapper.csv.impl.writer.FormatingAppender Maven / Gradle / Ivy
package org.simpleflatmapper.csv.impl.writer;
import org.simpleflatmapper.lightningcsv.CellWriter;
import org.simpleflatmapper.map.FieldMapper;
import org.simpleflatmapper.map.MappingContext;
import org.simpleflatmapper.reflect.Getter;
import java.text.Format;
import static org.simpleflatmapper.util.Asserts.requireNonNull;
public class FormatingAppender implements FieldMapper {
private final Getter getter;
private final Getter, Format> formatAccessor;
private final CellWriter cellWriter;
public FormatingAppender(Getter getter, Getter, Format> formatAccessor, CellWriter cellWriter) {
this.getter = getter;
this.formatAccessor = formatAccessor;
this.cellWriter = cellWriter;
}
@Override
public void mapTo(S source, Appendable target, MappingContext context) throws Exception {
Object o = getter.get(source);
if (o != null) {
Format format = formatAccessor.get(context);
requireNonNull("Format in mapping context", format);
cellWriter.writeValue(format.format(o), target);
}
}
}