Java Code Examples for org.apache.commons.io.IOUtils#readLines()

/**
 * Import the already generated cdkey into system.
 * 
 * @param fileName 
 * @return
 */
public int importCDKey(String fileName) throws IOException {
	int count = 0;
	File file = new File(fileName);
	HashMap<String, String> cdkeyMap = new HashMap<String, String>(); 
	if ( file.exists() && file.isFile() ) {
		List<String> lines = IOUtils.readLines(new FileReader(file));
		for ( String line : lines ) {
			String[] cdkeys = line.split(Constant.COMMA);
			if ( cdkeys.length == 2 ) {
				String cdkey = cdkeys[0];
				String pojoId = cdkeys[1];
				cdkeyMap.put(cdkey, pojoId);
				count++;
				logger.info("Import cdKey:"+cdkey+", pojoId:"+pojoId);
			}
		}
		if ( cdkeyMap.size() > 0 ) {
			Jedis jedis = JedisFactory.getJedisDB();
			jedis.hmset(REDIS_CDKEY, cdkeyMap);
		}
	} else {
		logger.warn("CDKey File cannot be read:{}", file.getAbsolutePath());
	}
	return count;
}
 

/**
 * {@inheritDoc}.
 */
@Override
public void displayPreview(String contentType, ByteArrayInputStream in) {
    try {
        try {
            StringBuilder sb = new StringBuilder();
            for (String line : IOUtils.readLines(in)) {
                sb.append(line);
                sb.append(System.getProperty("line.separator"));
            }
            area.setText(sb.toString());
        } finally {
            in.close();
        }
    } catch (IOException e) {
        area.setText("");
        logger.error("Error occurred while previewing text", e);
    }
}
 

/**
 * Loads the VAPID keypair from the file, or generate them if they don't exist.
 */
private void loadVAPIDKeys() {
    try {
        List<String> encodedKeys = IOUtils.readLines(
                new FileInputStream(ConfigConstants.getUserDataFolder() + File.separator + VAPID_KEYS_FILE_NAME));
        this.publicVAPIDKey = encodedKeys.get(0);
        this.privateVAPIDKey = encodedKeys.get(1);
    } catch (IOException e) {
        try {
            generateVAPIDKeyPair();
        } catch (InvalidAlgorithmParameterException | NoSuchProviderException | NoSuchAlgorithmException
                | IOException e1) {
            RuntimeException ex = new RuntimeException("Cannot get the VAPID keypair for push notifications");
            ex.initCause(e1);
            throw ex;
        }
    }
}
 

private static EcoMappings<OWLClass> loadEcoMappings(Reader mappingsReader, OWLGraphWrapper eco) throws IOException {
	EcoMappings<OWLClass> mappings = new EcoMappings<OWLClass>();
	List<String> lines = IOUtils.readLines(mappingsReader);
	for (String line : lines) {
		line = StringUtils.trimToNull(line);
		if (line != null) {
			char c = line.charAt(0);
			if ('#' != c) {
				String[] split = StringUtils.split(line, '\t');
				if (split.length == 3) {
					String code = split[0];
					String ref = split[1];
					String ecoId = split[2];
					OWLClass cls = eco.getOWLClassByIdentifier(ecoId);
					if (cls != null) {
						mappings.add(code, ref, cls);
					}
				}
			}
		}
	}
	return mappings;
}
 

/**
 * Tests that activities matching core-ex* can be parsed by apache streams.
 *
 * @throws Exception test exception
 */
@Test
public void testCoreSerDe() throws Exception {

  InputStream testActivityFolderStream = ExamplesSerDeIT.class.getClassLoader()
      .getResourceAsStream("w3c/activitystreams-master/test");
  List<String> files = IOUtils.readLines(testActivityFolderStream, StandardCharsets.UTF_8);

  for (String file : files) {
    if ( !file.startsWith(".") && file.contains("core-ex") ) {
      LOGGER.info("File: activitystreams-master/test/" + file);
      String testFileString = new String(Files.readAllBytes(Paths.get("target/test-classes/w3c/activitystreams-master/test/" + file)));
      LOGGER.info("Content: " + testFileString);
      ObjectNode testFileObjectNode = MAPPER.readValue(testFileString, ObjectNode.class);
      LOGGER.info("Object:" + testFileObjectNode);
    }
  }
}
 

protected List<String> extractFilesFromList(String output, List<String> fileList, int entries) {

        // Just in case, since NPE"s are a drag
        output = ObjectUtils.defaultIfNull(output, "");

        // If there's content add it to the file list
        if (StringUtils.isNotEmpty(output.trim())) {
            try {
                List<String> lines = IOUtils.readLines(new StringReader(output));
                int sz = lines.size();
                for (int i = 0; i < sz; i++) {
                    fileList.add(lines.get(i));
                    if(i == entries){
                        break;
                    }
                }
            } catch (Exception e) {
                logger.error( "Error getting directory listing.", e);
            }
        }

        return fileList;

    }
 

@Test
public void testHasQuotaList() throws IOException {
  HttpGet get = new HttpGet("http://localhost:4567/filter?set=dirs&filters=hasQuota:eq:true");
  HttpResponse res = client.execute(hostPort, get);
  List<String> result = IOUtils.readLines(res.getEntity().getContent());
  System.out.println(result);
  assertThat(result.size(), is(not(0)));
  assertThat(res.getStatusLine().getStatusCode(), is(200));
}
 

/**
 * Write content of the record in a human readable form.
 *
 * @param writer        where the data is written to
 * @param lineSeparator line separator for multi line values
 * @throws IOException if the record can't be written
 */
public void dump(Writer writer, String lineSeparator) throws IOException {
    for (int i = 0; i < this.getRecordLenth(); i++) {
        StringBuilder txt = new StringBuilder();
        try (StringReader reader = new StringReader(StringUtils.trimToEmpty(this.get(i)))) {
            for (String line : IOUtils.readLines(reader)) {
                if (txt.length() > 0) txt.append(lineSeparator);
                txt.append(line);
            }
        }
        writer.write(i + ":" + txt.toString());
        writer.write(System.lineSeparator());
    }
}
 

@Test
public void testAverageSpacePerBlock() throws IOException {
  HttpGet get =
      new HttpGet(
          "http://localhost:4567/divide?set1=files&sum1=fileSize&set2=files&sum2=numBlocks");
  HttpResponse res = client.execute(hostPort, get);
  List<String> strings = IOUtils.readLines(res.getEntity().getContent());
  assertThat(strings.size(), is(1));
  String average = strings.get(0);
  System.out.println(average);
  long v = Long.parseLong(average);
  assertThat(v, is(not(0L)));
  assertThat(res.getStatusLine().getStatusCode(), is(200));
}
 

@PostConstruct
public void setup() {
    try {
        byte[] graphBytes = FileUtils.readFileToByteArray(new File(modelConfig.getModelPath()));
        init(graphBytes, modelConfig.getInputLayerName(), modelConfig.getOutputLayerName());

        List<String> labelsList = IOUtils.readLines(modelConfig.getLabelsResource().getInputStream(), "UTF-8");
        labels = new ArrayList<>(labelsList);
        log.info("Initialized Tensorflow model ({}MB)", graphBytes.length / BYTES_IN_MB);
    } catch (IOException e) {
        log.error("Error during classifier initialization:", e);
    }
}
 

private static void chopOff(File f, String annoPtn) throws IOException {
    
    System.out.println("Processing " + f);
    
    FileInputStream is = new FileInputStream(f);
    List<String> lines = IOUtils.readLines(is, "UTF-8");
    is.close();
    List<String> outLines = new ArrayList<>(lines.size());
    
    boolean del = false;
    for (String l : lines) {
        if (l.startsWith("    @") && l.contains(annoPtn))
            del = true;
        
        if (del)
            System.out.println("x " + l);
        else
            outLines.add(l);
        
        if (del && l.startsWith("    }"))
            del = false;
    }
    
    if (!dryRun && outLines.size() < lines.size()) {
        FileOutputStream os = new FileOutputStream(f);
        IOUtils.writeLines(outLines, "\n", os, "UTF-8");
        os.close();
        System.out.println("UPDATED " + f);
    } else {
        System.out.println("skipped");
    }
    
    System.out.println("============================================================================");
}
 

@Override
public void open(Map map,
                 TopologyContext context,
                 SpoutOutputCollector outputCollector) {
  this.outputCollector = outputCollector;

  try {
    commits = IOUtils.readLines(ClassLoader.getSystemResourceAsStream("changelog.txt"),
                                Charset.defaultCharset().name());
  } catch (IOException e) {
    throw new RuntimeException(e);
  }
}
 

/**
 * Extract lines that start an rdf element so basic assertions can be made.
 */
private static List<String> rdfOpenTags(String s) throws IOException {
	String withoutSpaces = Pattern.compile("^\\s+", Pattern.MULTILINE).matcher(s).replaceAll("");

	List<String> rdfLines = new ArrayList<>();

	for (String l : IOUtils.readLines(new StringReader(withoutSpaces))) {
		if (l.startsWith("<rdf:")) {
			rdfLines.add(l.replaceAll(" .*", ""));
		}
	}

	return rdfLines;
}
 

@Test
public void testFindAvgFileSizeUserHistogramCSV() throws IOException {
  HttpGet get =
      new HttpGet(
          "http://localhost:4567/histogram?set=files&type=user&find=max:fileSize&histogramOutput=csv");
  HttpResponse res = client.execute(hostPort, get);
  List<String> text = IOUtils.readLines(res.getEntity().getContent());
  assertThat(text.size(), is(1));
  assertThat(text.get(0).split(",").length, is(2));
  assertThat(res.getStatusLine().getStatusCode(), is(200));
}
 

@Test
public void testStorageTypeHistogram() throws IOException {
  HttpGet get = new HttpGet("http://localhost:4567/histogram?set=files&type=storageType");
  HttpResponse res = client.execute(hostPort, get);
  List<String> strings = IOUtils.readLines(res.getEntity().getContent());
  if (!String.join(" ", strings).contains("not supported")) {
    strings.clear();
    assertThat(res.getStatusLine().getStatusCode(), is(200));
  }
}
 

@SuppressWarnings("unchecked")
public static List<String> getStopWords() {

	try {
		if(stopWords == null)
			stopWords =  IOUtils.readLines(new ClassPathResource("/stopwords").getInputStream());
	} catch (IOException e) {
		throw new RuntimeException(e);
	}
	return stopWords;
}
 

public static WhiteListBasedUriKBClassifier create(InputStream stream) {
    try {
        return new WhiteListBasedUriKBClassifier(IOUtils.readLines(stream));
    } catch (IOException e) {
        LOGGER.error("Exception while trying to read knowledge base namespaces.", e);
        return null;
    }
}
 

private List<String> execute(String... args) throws IOException {
    String[] command;
    if (runAsArgs != null) {
        command = new String[runAsArgs.length + args.length];
        System.arraycopy(runAsArgs, 0, command, 0, runAsArgs.length);
        System.arraycopy(args, 0, command, runAsArgs.length, args.length);
    } else {
        command = args;
    }
    Process process = new ProcessBuilder(command).start();
    return IOUtils.readLines(process.getInputStream(), Charset.defaultCharset());
}
 

protected String formatPlain(String content) {
    // TODO do a proper algorithm

    try {
        int maxLine = 0;


        List<String> linesIn = IOUtils.readLines(new StringReader(content));
        for (int i = 0; i < linesIn.size(); i++) {
            if (linesIn.get(i).startsWith(">")) {
                maxLine = i - (StringUtils.isBlank(linesIn.get(i - 1)) ? 2 : 1);
                break;
            }
        }

        List<String> linesOut = new ArrayList<>();
        boolean prevLineBlank = false;
        for (int i = 0; i < maxLine; i++) {
            String line = StringUtils.trimToEmpty(linesIn.get(i));
            if (StringUtils.isBlank(line)) {
                if (prevLineBlank) {
                    continue;
                }

                prevLineBlank = true;
            } else {
                prevLineBlank = false;
            }
            linesOut.add(line);
        }

        if (prevLineBlank) {
            linesOut.remove(linesOut.size() - 1);
        }

        return StringUtils.join(linesOut, System.lineSeparator());
    } catch (IOException e) {
        // This should never happen, we can't deal with it here
        throw new RuntimeException(e);
    }
}
 

protected List<String> execute(String... args) throws IOException {
    Process process = new ProcessBuilder(args).start();
    @SuppressWarnings("unchecked")
    List<String> lines = IOUtils.readLines(process.getInputStream());
    return lines;
}