Java tutorial
/* * Copyright 2015-2016 OpenEstate.org. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.openestate.io.is24_csv; import java.io.File; import java.io.IOException; import java.io.OutputStream; import java.io.Writer; import org.apache.commons.csv.CSVPrinter; import org.apache.commons.lang3.StringUtils; import org.openestate.io.core.CsvPrinter; /** * Printer for the IS24-CSV format. * * @since 1.0 * @author Andreas Rudolph */ public class Is24CsvPrinter extends CsvPrinter<Is24CsvRecord> { /** * Create with specifications of a {@link CSVPrinter}. * * @param printer * the CSV printer from * <a href="http://commons.apache.org/proper/commons-csv/">commons-csv</a> */ protected Is24CsvPrinter(CSVPrinter printer) { super(printer); } /** * Creates a {@link Is24CsvPrinter}, that writes CSV data into a * {@link StringBuffer}. * * @param csvString * where CSV is written to * * @return * created printer * * @throws IOException * if CSV is not writable */ public static Is24CsvPrinter create(StringBuffer csvString) throws IOException { return new Is24CsvFormat().print(csvString); } /** * Creates a {@link Is24CsvPrinter}, that writes CSV data into a * {@link StringBuilder}. * * @param csvString * where CSV is written to * * @return * created printer * * @throws IOException * if CSV is not writable */ public static Is24CsvPrinter create(StringBuilder csvString) throws IOException { return new Is24CsvFormat().print(csvString); } /** * Creates a {@link Is24CsvPrinter}, that writes CSV data into a {@link File}. * * @param csvFile * where CSV is written to * * @return * created printer * * @throws IOException * if CSV is not writable */ public static Is24CsvPrinter create(File csvFile) throws IOException { return new Is24CsvFormat().print(csvFile); } /** * Creates a {@link Is24CsvPrinter}, that writes CSV data into an * {@link OutputStream}. * * @param output * where CSV is written to * * @return * created printer * * @throws IOException * if CSV is not writable */ public static Is24CsvPrinter create(OutputStream output) throws IOException { return new Is24CsvFormat().print(output); } /** * Creates a {@link Is24CsvPrinter}, that writes CSV data into a * {@link Writer}. * * @param output * where CSV is written to * * @return * created printer * * @throws IOException * if CSV is not writable */ public static Is24CsvPrinter create(Writer output) throws IOException { return new Is24CsvFormat().print(output); } @Override protected void print(String value) throws IOException { value = StringUtils.trimToNull(value); // IS24-CSV does not support escaping of the field separator. Therefore the // field separator '|' is replaced with '/' from the value before it is // written to CSV. value = StringUtils.replace(value, "|", "/"); // Replace any line breaks from the value with <br> value = CsvPrinter.replaceLineBreaks(value, "<br>"); super.print(value); } }