FileReader.java

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package com.renomad.minum.utils;
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import com.renomad.minum.logging.ILogger;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.RandomAccessFile;
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import java.nio.ByteBuffer;
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import java.nio.channels.FileChannel;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.Map;
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import static com.renomad.minum.utils.FileUtils.badFilePathPatterns;
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/**
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 * Reads files from disk, optionally storing into a LRU cache.
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 */
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public final class FileReader implements IFileReader {
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    private final Map<String, byte[]> lruCache;
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    private final boolean useCacheForStaticFiles;
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    private final ILogger logger;
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    public FileReader(Map<String, byte[]> lruCache, boolean useCacheForStaticFiles, ILogger logger) {
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        this.lruCache = lruCache;
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        this.useCacheForStaticFiles = useCacheForStaticFiles;
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        this.logger = logger;
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    }
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    @Override
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    public byte[] readFile(String path) throws IOException {
33 2 1. readFile : negated conditional → KILLED
2. readFile : negated conditional → KILLED
 
        if (useCacheForStaticFiles && lruCache.containsKey(path)) {
34 1 1. readFile : replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED
 
            return lruCache.get(path);
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        }
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37 1 1. readFile : negated conditional → KILLED
 
        if (badFilePathPatterns.matcher(path).find()) {
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            logger.logDebug(() -> String.format("Bad path requested at readFile: %s", path));
39 1 1. readFile : replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED
 
            return new byte[0];
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        }
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42 1 1. readFile : negated conditional → KILLED
 
        if (!Files.exists(Path.of(path))) {
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            logger.logDebug(() -> String.format("No file found at %s, returning an empty byte array", path));
44 1 1. readFile : replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED
 
            return new byte[0];
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        }
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47 1 1. readFile : replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED
 
        return readTheFile(path, logger, useCacheForStaticFiles, lruCache);
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    }
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    static byte[] readTheFile(String path, ILogger logger, boolean useCacheForStaticFiles, Map<String, byte[]> lruCache) throws IOException {
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        try (RandomAccessFile reader = new RandomAccessFile(path, "r");
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             ByteArrayOutputStream out = new ByteArrayOutputStream()) {
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            FileChannel channel = reader.getChannel();
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            int bufferSize = 8 * 1024;
55 2 1. readTheFile : changed conditional boundary → SURVIVED
2. readTheFile : negated conditional → KILLED
 
            if (bufferSize > channel.size()) {
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                bufferSize = (int) channel.size();
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            }
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            ByteBuffer buff = ByteBuffer.allocate(bufferSize);
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60 2 1. readTheFile : changed conditional boundary → TIMED_OUT
2. readTheFile : negated conditional → KILLED
 
            while (channel.read(buff) > 0) {
61 1 1. readTheFile : removed call to java/io/ByteArrayOutputStream::write → KILLED
 
                out.write(buff.array(), 0, buff.position());
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                buff.clear();
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            }
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            byte[] bytes = out.toByteArray();
66 1 1. readTheFile : negated conditional → KILLED
 
            if (bytes.length == 0) {
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                logger.logTrace(() -> path + " filesize was 0, returning empty byte array");
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                return new byte[0];
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            } else {
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                String s = path + " filesize was " + bytes.length + " bytes.";
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                logger.logTrace(() -> s);
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                if (useCacheForStaticFiles) {
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                    logger.logDebug(() -> "Storing " + path + " in the cache");
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                    lruCache.put(path, bytes);
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                }
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                return bytes;
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            }
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        }
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    }
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}

Mutations

33

1.1
Location : readFile
Killed by : com.renomad.minum.web.WebFrameworkTests.test_Edge_ApplicationOctetStream(com.renomad.minum.web.WebFrameworkTests) negated conditional → KILLED

2.2
Location : readFile
Killed by : com.renomad.minum.utils.FileReaderTests.test_ReadFile_InCache(com.renomad.minum.utils.FileReaderTests) negated conditional → KILLED

34

1.1
Location : readFile
Killed by : com.renomad.minum.utils.FileReaderTests.test_ReadFile_InCache(com.renomad.minum.utils.FileReaderTests) replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED

37

1.1
Location : readFile
Killed by : com.renomad.minum.web.WebFrameworkTests.test_readStaticFile_CSS(com.renomad.minum.web.WebFrameworkTests) negated conditional → KILLED

39

1.1
Location : readFile
Killed by : com.renomad.minum.utils.FileReaderTests.test_ReadFile_BadPath(com.renomad.minum.utils.FileReaderTests) replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED

42

1.1
Location : readFile
Killed by : com.renomad.minum.web.WebFrameworkTests.test_readStaticFile_CSS(com.renomad.minum.web.WebFrameworkTests) negated conditional → KILLED

44

1.1
Location : readFile
Killed by : com.renomad.minum.utils.FileUtilsTests replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED

47

1.1
Location : readFile
Killed by : com.renomad.minum.web.WebFrameworkTests.test_Edge_ApplicationOctetStream(com.renomad.minum.web.WebFrameworkTests) replaced return value with null for com/renomad/minum/utils/FileReader::readFile → KILLED

55

1.1
Location : readTheFile
Killed by : com.renomad.minum.FunctionalTests negated conditional → KILLED

2.2
Location : readTheFile
Killed by : none changed conditional boundary → SURVIVED Covering tests

60

1.1
Location : readTheFile
Killed by : com.renomad.minum.web.WebFrameworkTests.test_readStaticFile_CSS(com.renomad.minum.web.WebFrameworkTests) negated conditional → KILLED

2.2
Location : readTheFile
Killed by : none changed conditional boundary → TIMED_OUT

61

1.1
Location : readTheFile
Killed by : com.renomad.minum.web.WebFrameworkTests.test_readStaticFile_CSS(com.renomad.minum.web.WebFrameworkTests) removed call to java/io/ByteArrayOutputStream::write → KILLED

66

1.1
Location : readTheFile
Killed by : com.renomad.minum.web.WebFrameworkTests.test_readStaticFile_CSS(com.renomad.minum.web.WebFrameworkTests) negated conditional → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.0