org.jbasics.csv.CSVSpecialRecordBuilder Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jbasics Show documentation

jBasics is a collection of useful utility classes for Java. This includes helper for XML, mathematic functions, restful web services helper, pattern oriented programming interfaces and more. Currently Java7 and up is supported. Version 1.0 will required at leaset Java8.

The newest version!

/*
 * Copyright (c) 2009-2015
 * 	IT-Consulting Stephan Schloepke (http://www.schloepke.de/)
 * 	klemm software consulting Mirko Klemm (http://www.klemm-scs.com/)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.jbasics.csv;

import org.jbasics.pattern.builder.AddBuilder;
import org.jbasics.pattern.builder.Builder;
import org.jbasics.utilities.DataUtilities;
import org.jbasics.xml.XMLDateConverter;

import javax.xml.datatype.XMLGregorianCalendar;
import java.math.BigDecimal;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

public class CSVSpecialRecordBuilder implements Builder {
	private final Locale locale;
	private final String emptyCellValue;
	private final Map columns;
	private final String[] cellValues;

	public CSVSpecialRecordBuilder(String... columns) {
		this(null, null, columns);
	}

	public CSVSpecialRecordBuilder(String emptyCellValue, String... columns) {
		this(null, emptyCellValue, columns);
	}

	public CSVSpecialRecordBuilder(Locale locale, String emptyCellValue, String... columns) {
		this.locale = DataUtilities.coalesce(locale, Locale.getDefault());
		this.emptyCellValue = DataUtilities.coalesce(emptyCellValue, "-");
		this.cellValues = new String[columns.length];
		this.columns = new HashMap<>();
		for (int i = 0; i < columns.length; i++) {
			this.columns.put(columns[i], i);
		}
	}

	public CSVSpecialRecordBuilder withColumn(String columnName, Object value) {
		Integer i = this.columns.get(columnName);
		if (i != null) {
			if (value == null) {
				cellValues[i] = "";
			} else if (value instanceof XMLGregorianCalendar) {
				cellValues[i] = new SimpleDateFormat("yyyy-MM-dd").format(XMLDateConverter.convert((XMLGregorianCalendar) value));
			} else if (value instanceof Date) {
				cellValues[i] = new SimpleDateFormat("yyyy-MM-dd").format((Date) value);
			} else if (value instanceof BigDecimal) {
				final NumberFormat numFormat = NumberFormat.getNumberInstance(this.locale);
				numFormat.setMinimumFractionDigits(4);
				numFormat.setMaximumFractionDigits(14);
				cellValues[i] = numFormat.format(value);
			} else {
				cellValues[i] = String.valueOf(value);
			}
		}
		return this;
	}


	@Override
	public void reset() {
		for (int i = 0; i < cellValues.length; i++) {
			cellValues[i] = emptyCellValue;
		}
	}

	@Override
	public CSVRecord build() {
		return new CSVRecord(cellValues);
	}

	public CSVRecord buildAndRest() {
		CSVRecord temp = build();
		reset();
		return temp;
	}

	public CSVSpecialRecordBuilder addToAndReset(AddBuilder addBuilder) {
		addBuilder.add(build());
		reset();
		return this;
	}

}