StringCellConverterFactory.java
package com.gh.mygreen.xlsmapper.cellconverter.impl;
import java.util.Optional;
import org.apache.poi.ss.usermodel.Cell;
import com.gh.mygreen.xlsmapper.Configuration;
import com.gh.mygreen.xlsmapper.annotation.XlsTrim;
import com.gh.mygreen.xlsmapper.cellconverter.BaseCellConverter;
import com.gh.mygreen.xlsmapper.cellconverter.CellConverter;
import com.gh.mygreen.xlsmapper.cellconverter.CellConverterFactory;
import com.gh.mygreen.xlsmapper.cellconverter.CellConverterFactorySupport;
import com.gh.mygreen.xlsmapper.cellconverter.TypeBindException;
import com.gh.mygreen.xlsmapper.fieldaccessor.FieldAccessor;
import com.gh.mygreen.xlsmapper.textformatter.TextFormatter;
import com.gh.mygreen.xlsmapper.textformatter.TextParseException;
/**
* {@link String}を処理する{@link CellConverter}を作成するためのファクトリクラス。
*
* @since 2.0
* @author T.TSUCHIE
*
*/
public class StringCellConverterFactory extends CellConverterFactorySupport<String>
implements CellConverterFactory<String> {
@Override
public StringCellConverter create(final FieldAccessor field, final Configuration config) {
final StringCellConverter cellConverter = new StringCellConverter(field, config);
setupCellConverter(cellConverter, field, config);
return cellConverter;
}
@Override
protected void setupCustom(final BaseCellConverter<String> cellConverter, final FieldAccessor field, final Configuration config) {
// 何もしない
}
@Override
protected TextFormatter<String> createTextFormatter(final FieldAccessor field, final Configuration config) {
return new TextFormatter<String>() {
@Override
public String parse(String text) throws TextParseException {
if(text.isEmpty() && !field.hasAnnotation(XlsTrim.class)) {
// トリムを行わない場合は、空文字をnullに補完する。
return null;
}
return text;
}
@Override
public String format(String value) {
return value;
}
};
}
public class StringCellConverter extends BaseCellConverter<String> {
private StringCellConverter(final FieldAccessor field, final Configuration config) {
super(field, config);
}
@Override
protected String parseCell(final Cell evaluatedCell, final String formattedValue) throws TypeBindException {
return textFormatter.parse(formattedValue);
}
@Override
protected void setupCell(final Cell cell, final Optional<String> cellValue) throws TypeBindException {
if(cellValue.isPresent() && !cellValue.get().isEmpty()) {
cell.setCellValue(cellValue.get());
} else {
cell.setBlank();
}
}
}
}