Example usage for java.util StringJoiner StringJoiner

Introduction

In this page you can find the example usage for java.util StringJoiner StringJoiner.

Prototype

public StringJoiner(CharSequence delimiter) 

Source Link

Document

Constructs a StringJoiner with no characters in it, with no prefix or suffix , and a copy of the supplied delimiter .

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    List<Person> persons = Arrays.asList(new Person("Max", 18), new Person("Peter", 23),
            new Person("Pamela", 23), new Person("David", 12));

    Collector<Person, StringJoiner, String> personNameCollector = Collector.of(() -> new StringJoiner(" | "), // supplier
            (j, p) -> j.add(p.name.toUpperCase()), // accumulator
            (j1, j2) -> j1.merge(j2), // combiner
            StringJoiner::toString); // finisher

    String names = persons.stream().collect(personNameCollector);

    System.out.println(names);//from   w  ww  .  j a  v a 2  s.  c o  m
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    List<Person> persons = Arrays.asList(new Person("Max", 18), new Person("Peter", 23),
            new Person("Pamela", 23), new Person("David", 12));

    Collector<Person, StringJoiner, String> personNameCollector = Collector.of(() -> {
        System.out.println("supplier");
        return new StringJoiner(" | ");
    }, (j, p) -> {/*from ww  w. j  a va 2  s .  c om*/
        System.out.format("accumulator: p=%s; j=%s\n", p, j);
        j.add(p.name.toUpperCase());
    }, (j1, j2) -> {
        System.out.println("merge");
        return j1.merge(j2);
    }, j -> {
        System.out.println("finisher");
        return j.toString();
    });

    String names = persons.stream().collect(personNameCollector);

    System.out.println(names);
}

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From source file:Main.java

public static String getDeepNodeValue(Node node) {
    StringJoiner out = new StringJoiner(" ");

    if (node.hasChildNodes()) {
        for (int i = 0; i < node.getChildNodes().getLength(); i++) {
            String val = getDeepNodeValue(node.getChildNodes().item(i));
            if (val != null && val.trim().length() != 0)
                out.add(val.trim());
        }// ww  w  .  jav  a  2s . c  o  m
    } else if (node.getNodeValue() != null && node.getNodeValue().trim().length() != 0) {
        out.add(node.getNodeValue().trim());
    }

    return out.toString();
}

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From source file:pcgen.core.display.VisionDisplay.java

@NotNull
public static String getVision(final PlayerCharacter aPC, CDOMObject cdo) {
    if (aPC == null) {
        return "";
    }//  w  ww.  j a v  a 2 s.  c  om
    Collection<CDOMReference<Vision>> mods = CollectionUtils.emptyIfNull(cdo.getListMods(Vision.VISIONLIST));

    StringJoiner visionString = new StringJoiner(";");
    mods.stream().flatMap(ref -> ref.getContainedObjects().stream()).map(v -> v.toString(aPC))
            .forEach(visionString::add);

    return visionString.toString();
}

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From source file:org.trellisldp.rosid.file.FileUtils.java

/**
 * Partition an identifier into a directory structure
 * @param identifier the identifier// w  w  w  .  j  a  v a 2s . c o m
 * @return a string usable as a directory path
 */
public static String partition(final String identifier) {
    requireNonNull(identifier, "identifier must not be null!");

    final StringJoiner joiner = new StringJoiner(separator);
    final CRC32 hasher = new CRC32();
    hasher.update(identifier.getBytes(UTF_8));
    final String intermediate = Long.toHexString(hasher.getValue());

    range(0, intermediate.length() / LENGTH).limit(MAX)
            .forEach(i -> joiner.add(intermediate.substring(i * LENGTH, (i + 1) * LENGTH)));

    joiner.add(md5Hex(identifier));
    return joiner.toString();
}

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From source file:uk.nhs.fhir.load.FileLoader.java

/**
  * @param file File to load content from
  * @return String containing content of specified file
  *//*ww w . jav a2 s. c o  m*/
public static String loadFile(final File file) {
    LOG.debug("Loading file: " + file.getAbsolutePath());

    String charsetName;
    try {
        charsetName = getCharset(file);
    } catch (IOException e) {
        throw new IllegalStateException("Unable to determine appropriate charset for file " + file.getName(),
                e);
    }

    LOG.debug("Loading file using encoding: " + charsetName);

    try (ByteArrayOutputStream bOutStream = new ByteArrayOutputStream();
            InputStream fis = new FileInputStream(file);
            InputStream bomInputStream = new BOMInputStream(fis);
            Reader streamReader = new InputStreamReader(bomInputStream, charsetName);
            BufferedReader in = new BufferedReader(streamReader);) {

        StringJoiner sj = new StringJoiner("\n");

        String str;
        while ((str = in.readLine()) != null) {
            sj.add(str);
        }

        return sj.toString();
    } catch (IOException e) {
        throw new IllegalStateException("Error reading file: " + file.getName(), e);
    }
}

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From source file:com.streamsets.pipeline.stage.origin.spooldir.TestOffsetUtil.java

private static Map<String, String> removeAbsolutePaths(Map<String, String> offsetV2) {
    Map<String, String> resultMap = new HashMap<>();
    for (Map.Entry<String, String> entry : offsetV2.entrySet()) {
        if (entry.getKey().contains(PATH_SEPARATOR)) {
            String filename = new StringJoiner(".").add(FilenameUtils.getBaseName(entry.getKey()))
                    .add(FilenameUtils.getExtension(entry.getKey())).toString();
            resultMap.put(filename, entry.getValue());
        } else {/* www . ja  va  2 s  .c o  m*/
            resultMap.put(entry.getKey(), entry.getValue());
        }
    }
    return resultMap;
}

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From source file:io.mapzone.arena.share.content.ArenaContentProvider.java

@Override
public ArenaContent get() {
    StringJoiner layers = new StringJoiner(",");
    for (SelectionDescriptor selection : context.selectionDescriptors.get()) {
        layers.add(selection.layer.get().label.get());
        // FIXME, if multilayers are working, remove this break!!!
        break;//  ww w . j a va2 s. co  m
    }

    Envelope envelope = context.boundingBox.get();
    StringJoiner extent = new StringJoiner(",");
    extent.add(String.valueOf((int) envelope.getMinX()));
    extent.add(String.valueOf((int) envelope.getMinY()));
    extent.add(String.valueOf((int) envelope.getMaxX()));
    extent.add(String.valueOf((int) envelope.getMaxY()));

    StringBuffer shareInfo = new StringBuffer(ArenaPlugin.instance().config().getProxyUrl());
    shareInfo.append(ShareServletsStarter.ALIAS_SHAREINFO).append("?");
    try {
        shareInfo.append(ShareInfoServlet.PARAMETER_LAYERS).append("=")
                .append(URLEncoder.encode(layers.toString(), "utf-8"));
        shareInfo.append("&").append(ShareInfoServlet.PARAMETER_BBOX).append("=")
                .append(URLEncoder.encode(extent.toString(), "utf-8"));
        if (!StringUtils.isBlank(ArenaPlugin.instance().config().getServiceAuthToken())) {
            shareInfo.append("&").append(ShareInfoServlet.PARAMETER_AUTHTOKEN).append("=")
                    .append(URLEncoder.encode(ArenaPlugin.instance().config().getServiceAuthToken(), "utf-8"));
        }
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    }

    ArenaContent content = new ArenaContent();
    content.arena = ArenaPlugin.instance().config().getProxyUrl() + ArenaPlugin.ALIAS;
    content.shareInfo = shareInfo.toString();
    return content;
}

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From source file:com.github.robozonky.integrations.zonkoid.ZonkoidConfirmationProvider.java

static String getAuthenticationString(final RequestId requestId, final int loanId) {
    final String auth = new StringJoiner("|").add(String.valueOf(requestId.getPassword())).add(CLIENT_APP)
            .add(requestId.getUserId()).add(String.valueOf(loanId)).toString();
    try {/*from  w  w  w. j  a v  a  2s .c  o m*/
        return md5(auth);
    } catch (final NoSuchAlgorithmException ex) {
        throw new IllegalStateException("Your Java Runtime Environment does not support MD5!", ex);
    }
}

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From source file:info.archinnov.achilles.internals.strategy.naming.InternalNamingStrategy.java

default String toSnakeCase(String name) {
    final String[] tokens = splitByCharacterTypeCamelCase(name);
    final StringJoiner joiner = new StringJoiner("_");
    asList(tokens).stream().filter(x -> x != null).map(x -> x.toLowerCase()).forEach(joiner::add);

    return joiner.toString().replaceAll("_+", "_");
}

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