001/*
002 * Copyright (c) 2015-2020, Oracle and/or its affiliates. All rights reserved.
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 implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.tribuo.tests;
018
019import com.oracle.labs.mlrg.olcut.util.IOUtil;
020
021import java.io.BufferedReader;
022import java.io.BufferedWriter;
023import java.io.IOException;
024import java.io.InputStreamReader;
025import java.nio.charset.Charset;
026import java.nio.charset.StandardCharsets;
027import java.nio.file.Files;
028import java.nio.file.Path;
029
030/**
031 * Utils for working with classpath resources at test time.
032 */
033public final class Resources {
034    private Resources() {
035    }
036
037    public static Path copyResourceToTmp(String resource) throws IOException {
038        Path path = Files.createTempFile("test", ".csv");
039        path.toFile().deleteOnExit();
040        try (BufferedReader reader = new BufferedReader(new InputStreamReader(IOUtil.getInputStream(resource), StandardCharsets.UTF_8));
041             BufferedWriter writer = Files.newBufferedWriter(path, Charset.defaultCharset())) {
042
043            String ln;
044            while ((ln = reader.readLine()) != null) {
045                writer.write(ln);
046                writer.newLine();
047            }
048
049            return path;
050        }
051    }
052}