Example usage for java.util.stream StreamSupport stream

Introduction

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

Prototype

public static <T> Stream<T> stream(Spliterator<T> spliterator, boolean parallel)

Source Link

Document

Creates a new sequential or parallel Stream from a Spliterator .

Usage

From source file:com.simiacryptus.util.test.EnglishWords.java

/**
 * Load stream.//from   w w w .j av  a  2s  . c o m
 *
 * @return the stream
 */
public static Stream<EnglishWords> load() {
    if (thread == null) {
        synchronized (WikiArticle.class) {
            if (thread == null) {
                thread = new Thread(EnglishWords::read);
                thread.setDaemon(true);
                thread.start();
            }
        }
    }
    Iterator<EnglishWords> iterator = new AsyncListIterator<>(queue, thread);
    return StreamSupport.stream(Spliterators.spliteratorUnknownSize(iterator, Spliterator.DISTINCT), false)
            .filter(x -> x != null);
}

From source file:objective.taskboard.utils.ZipUtils.java

public static Stream<ZipStreamEntry> stream(InputStream inputStream) {
    ZipEntryIterator it = new ZipEntryIterator(new ZipInputStream(inputStream));
    return StreamSupport
            .stream(Spliterators.spliteratorUnknownSize(it, Spliterator.ORDERED | Spliterator.NONNULL), false);
}

From source file:com.simiacryptus.util.test.Shakespeare.java

/**
 * Load stream./*from   w w w . ja  va2s .co m*/
 *
 * @return the stream
 */
public static Stream<Shakespeare> load() {
    if (thread == null) {
        synchronized (WikiArticle.class) {
            if (thread == null) {
                thread = new Thread(Shakespeare::read);
                thread.setDaemon(true);
                thread.start();
            }
        }
    }
    Iterator<Shakespeare> iterator = new AsyncListIterator<>(queue, thread);
    return StreamSupport.stream(Spliterators.spliteratorUnknownSize(iterator, Spliterator.DISTINCT), false)
            .filter(x -> x != null);
}

From source file:com.avanza.ymer.MongoDocumentCollection.java

@Override
public Stream<DBObject> findAll() {
    return StreamSupport.stream(dbCollection.find().spliterator(), false);
}

From source file:com.lithium.flow.shell.sshj.SshjExec.java

@Override
@Nonnull
public Stream<String> out() {
    return StreamSupport.stream(new InputStreamSpliterator(command.getInputStream(), UTF_8), false);
}

From source file:uk.trainwatch.app.util.Main.java

private static int run(String... args) throws Exception {

    // Load all of the utility implementations
    ServiceLoader<Utility> loader = ServiceLoader.load(Utility.class);
    Map<String, Utility> tools = StreamSupport.stream(loader.spliterator(), false)
            .collect(Collectors.toMap(Utility::getName, Function.identity()));

    Supplier<String> toolNames = () -> tools.keySet().stream().sorted()
            .collect(Collectors.joining(", ", "Available tools: ", ""));

    Consumer<Utility> showHelp = u -> new HelpFormatter().printHelp(u.getName(), u.getOptions());

    if (args.length == 0) {
        LOG.log(Level.INFO, toolNames);
        return 1;
    }//from  www.jav  a  2s.c o  m

    String toolName = args[0];

    if ("-?".equals(toolName) || "--help".equals(toolName)) {
        HelpFormatter hf = new HelpFormatter();
        tools.keySet().stream().sorted().map(tools::get).filter(Objects::nonNull).forEach(showHelp);
    } else {
        Utility util = getUtility(tools, toolNames, toolName);
        if (util != null) {

            String toolArgs[] = Arrays.copyOfRange(args, 1, args.length);

            if (toolArgs.length == 0 || "-?".equals(toolArgs[0]) || "--help".equals(toolArgs[0])) {
                new HelpFormatter().printHelp(util.getName(), util.getOptions());
            } else {
                try {
                    CommandLineParser parser = new BasicParser();
                    CommandLine cmd = parser.parse(util.getOptions(), toolArgs);
                    if (util.parseArgs(cmd)) {
                        // Simple banner for identifying whats being run
                        LoggingUtils.logBanner("Utility: " + util.getName());
                        try {
                            CDIUtils.inject(util);
                            util.call();
                            return 0;
                        } finally {
                            LoggingUtils.logBanner("End run of " + util.getName());
                        }
                    } else {
                        LOG.log(Level.WARNING, () -> "Failed to parse args " + cmd);
                        showHelp.accept(util);
                    }
                } catch (UnrecognizedOptionException ex) {
                    LOG.log(Level.WARNING, ex, ex::getMessage);
                    showHelp.accept(util);
                } catch (UncheckedSQLException ex) {
                    LOG.log(Level.SEVERE, null, ex.getCause());
                } catch (Exception ex) {
                    LOG.log(Level.SEVERE, null, ex);
                }
            }
        }
    }
    return 1;
}

From source file:com.github.steveash.guavate.Guavate.java

/**
 * Converts an iterable to a serial stream.
 * <p>// w w  w  .  jav a 2s.  co  m
 * This is harder than it should be, a method {@code Stream.of(Iterable)}
 * would have been appropriate, but cannot be added now.
 * @param <T> the type of element in the iterable
 * @param iterable the iterable to convert
 * @return a stream of the elements in the iterable
 */
public static <T> Stream<T> stream(Iterable<T> iterable) {
    return StreamSupport.stream(iterable.spliterator(), false);
}

From source file:com.vmware.photon.controller.model.adapters.vsphere.vapi.TaggingClient.java

public List<String> getAttachedTags(ManagedObjectReference ref) throws IOException, RpcException {
    RpcRequest call = newCall("com.vmware.cis.tagging.tag_association", "list_attached_tags");
    bindToSession(call, this.sessionId);

    call.params.input = newNode();//from w  w w.  j a v a2  s  .c  o  m
    call.params.input.putObject("STRUCTURE").putObject("operation-input").put("object_id", newDynamicId(ref));

    RpcResponse resp = rpc(call);
    throwIfError("Cannot get tags for object " + VimUtils.convertMoRefToString(ref), resp);

    return StreamSupport.stream(resp.result.get("output").spliterator(), false).map(JsonNode::asText)
            .collect(Collectors.toList());
}

From source file:org.jamocha.filter.SymbolCollector.java

private Stream<Pair<VariableSymbol, SingleSlotVariable>> getSlotVariableStream() {
    return this.symbols.stream().flatMap(symbol -> StreamSupport
            .stream(symbol.getEqual().getSlotVariables().spliterator(), true).map(sv -> Pair.of(symbol, sv)));
}

From source file:com.lithium.flow.shell.sshj.SshjExec.java

@Override
@Nonnull
public Stream<String> err() {
    return StreamSupport.stream(new InputStreamSpliterator(command.getErrorStream(), UTF_8), false);
}