001/*
002 * (C) Copyright 2018 Nuxeo (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bdelbosc
018 */
019package org.nuxeo.importer.stream.consumer.watermarker;
020
021import static java.nio.charset.StandardCharsets.UTF_8;
022
023import java.io.IOException;
024import java.nio.file.Files;
025import java.nio.file.Path;
026import java.nio.file.StandardCopyOption;
027import java.nio.file.StandardOpenOption;
028
029/**
030 * Append the watermark at the end of text file
031 *
032 * @since 10.2
033 */
034public class TextWatermarker extends AbstractWatermarker {
035
036    @Override
037    public Path addWatermark(Path inputFile, Path outputDir, String watermark) {
038        try {
039            Path output = getOutputPath(inputFile, outputDir, watermark);
040            Files.copy(inputFile, output, StandardCopyOption.REPLACE_EXISTING);
041            String footer = "\n" + watermark + "\n";
042            Files.write(output, footer.getBytes(UTF_8), StandardOpenOption.APPEND);
043            return output;
044        } catch (IOException e) {
045            throw new IllegalArgumentException("Invalid text file: " + inputFile, e);
046        }
047
048    }
049}