Example usage for java.util List stream

Introduction

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

Prototype

default Stream<E> stream() 

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:eu.mihosoft.vrl.v3d.Edge.java

public static List<Vertex> toVertices(List<Edge> edges) {
    return edges.stream().map(e -> e.p1).collect(Collectors.toList());
}

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From source file:eu.mihosoft.vrl.v3d.Edge.java

public static List<Vector3d> toPoints(List<Edge> edges) {
    return edges.stream().map(e -> e.p1.pos).collect(Collectors.toList());
}

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From source file:com.spotify.heroic.HeroicInteractiveShell.java

public static HeroicInteractiveShell buildInstance(final List<CommandDefinition> commands,
        FileInputStream input) throws Exception {
    final ConsoleReader reader = new ConsoleReader("heroicsh", input, System.out, null);

    final FileHistory history = setupHistory(reader);

    if (history != null) {
        reader.setHistory(history);//from   w  w w . ja  v  a 2 s.c o  m
    }

    reader.setPrompt(String.format("heroic> "));
    reader.addCompleter(
            new StringsCompleter(ImmutableList.copyOf(commands.stream().map((d) -> d.getName()).iterator())));
    reader.setHandleUserInterrupt(true);

    return new HeroicInteractiveShell(reader, commands, history);
}

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From source file:de.micromata.genome.jpa.metainf.MetaInfoUtils.java

/**
 * Fill entity metadata.//from w  w w .  j a va 2 s. c  o m
 *
 * @param emgrFac the emgr fac
 * @return the jpa metadata repostory
 */
public static JpaMetadataRepostory fillEntityMetadata(EmgrFactory<?> emgrFac) {
    JpaMetadataRepostory nrepo = new JpaMetadataRepostory();
    Metamodel metamodel = emgrFac.getEntityManagerFactory().getMetamodel();
    Set<ManagedType<?>> mtl = metamodel.getManagedTypes();
    for (ManagedType<?> mt : mtl) {
        EntityMetadata empt = toEntityMetaData(mt);
        nrepo.getEntities().put(empt.getJavaType(), empt);
    }
    resolve(nrepo);
    buildReferences(nrepo);
    List<EntityMetadata> entities = buildSortedEnties(nrepo);
    nrepo.getTableEntities().addAll(entities);

    if (LOG.isDebugEnabled() == true) {
        LOG.debug("Sorted entities: "
                + entities.stream().map((e) -> e.getJavaType().getSimpleName()).collect(Collectors.toList()));
    }
    return nrepo;
}

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From source file:delfos.dataset.util.DatasetPrinter.java

private static String actuallyDoTheTable(final List<Item> itemsAllUsersRated, final List<User> users,
        DatasetLoader<? extends Rating> datasetLoader) {
    List<String> columnNames = new ArrayList<>();
    columnNames.add("user\\items");
    columnNames.addAll(/*from   ww  w.  ja  v  a 2s . c o  m*/
            itemsAllUsersRated.stream().map(item -> "Item_" + item.getId()).collect(Collectors.toList()));

    Object[][] data = new Object[users.size()][itemsAllUsersRated.size() + 1];

    DecimalFormat format = new DecimalFormat("0.0000");

    IntStream.range(0, users.size()).forEach(indexUser -> {
        User user = users.get(indexUser);

        data[indexUser][0] = user.toString();

        Map<Integer, ? extends Rating> userRatingsRated = datasetLoader.getRatingsDataset()
                .getUserRatingsRated(user.getId());

        IntStream.range(0, itemsAllUsersRated.size()).forEach(indexItem -> {
            Item item = itemsAllUsersRated.get(indexItem);
            if (userRatingsRated.containsKey(item.getId())) {
                data[indexUser][indexItem + 1] = format
                        .format(userRatingsRated.get(item.getId()).getRatingValue().doubleValue());
            } else {
                data[indexUser][indexItem + 1] = "";
            }
        });
    });

    TextTable textTable = new TextTable(columnNames.toArray(new String[0]), data);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PrintStream recordingStream = new PrintStream(baos);
    textTable.printTable(recordingStream, 0);

    return baos.toString();
}

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From source file:com.basp.trabajo_al_minuto.model.business.BusinessUtils.java

public static void writeLog(String file, List<LogRecord> records) throws BusinessException {
    try {/*  w  w w.  ja  va  2s . co m*/
        Logger logger = Logger.getAnonymousLogger();
        SimpleFormatter formatter = new SimpleFormatter();
        FileHandler fh = new FileHandler(file, Boolean.TRUE);
        fh.setFormatter(formatter);
        logger.addHandler(fh);
        logger.setUseParentHandlers(false);
        records.stream().forEach((logRecord) -> {
            logger.log(logRecord);
        });
    } catch (IOException | SecurityException ex) {
        Logger.getLogger(BusinessUtils.class.getName()).log(Level.SEVERE, "BusinessUtils.writeLog Exception",
                ex);
        throw new BusinessException(ex);
    }
}

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From source file:aiai.ai.launchpad.experiment.ExperimentService.java

private static Map<String, String> toMap(List<ExperimentHyperParams> experimentHyperParams) {
    return experimentHyperParams.stream().collect(Collectors.toMap(ExperimentHyperParams::getKey,
            ExperimentHyperParams::getValues, (a, b) -> b, HashMap::new));
}

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From source file:com.tascape.qa.th.android.comm.Adb.java

private static void loadAllSerials() {
    SERIALS.clear();/*from  w w w. j a va2 s  .c o  m*/
    String serials = SystemConfiguration.getInstance().getProperty(SYSPROP_SERIALS);
    if (null != serials) {
        LOG.info("Use specified devices from system property {}={}", SYSPROP_SERIALS, serials);
        SERIALS.addAll(Lists.newArrayList(serials.split(",")));
    } else {
        CommandLine cmdLine = new CommandLine(ADB);
        cmdLine.addArgument("devices");
        LOG.debug("{}", cmdLine.toString());
        List<String> output = new ArrayList<>();
        Executor executor = new DefaultExecutor();
        executor.setStreamHandler(new ESH(output));
        try {
            if (executor.execute(cmdLine) != 0) {
                throw new RuntimeException(cmdLine + " failed");
            }
        } catch (IOException ex) {
            throw new RuntimeException(cmdLine + " failed", ex);
        }
        output.stream().filter((line) -> (line.endsWith("device"))).forEach((line) -> {
            String s = line.split("\\t")[0];
            LOG.info("serial {}", s);
            SERIALS.add(s);
        });
    }
    if (SERIALS.isEmpty()) {
        throw new RuntimeException("No device detected.");
    }
}

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From source file:com.tascape.qa.th.android.comm.Adb.java

private static void loadSerialProductMap() {
    SERIAL_PRODUCT.clear();/*from  w  w  w.  j  a va2  s  . c  o m*/
    String serials = SystemConfiguration.getInstance().getProperty(SYSPROP_SERIALS);
    if (null != serials) {
        LOG.info("Use specified devices from system property {}={}", SYSPROP_SERIALS, serials);
        Lists.newArrayList(serials.split(",")).forEach(s -> SERIAL_PRODUCT.put(s, "na"));
    } else {
        CommandLine cmdLine = new CommandLine(ADB);
        cmdLine.addArgument("devices");
        cmdLine.addArgument("-l");
        LOG.debug("{}", cmdLine.toString());
        List<String> output = new ArrayList<>();
        Executor executor = new DefaultExecutor();
        executor.setStreamHandler(new ESH(output));
        try {
            if (executor.execute(cmdLine) != 0) {
                throw new RuntimeException(cmdLine + " failed");
            }
        } catch (IOException ex) {
            throw new RuntimeException(cmdLine + " failed", ex);
        }
        output.stream().map(line -> StringUtils.split(line, " ", 3))
                .filter(ss -> ss.length == 3 && ss[1].equals("device")).forEach(ss -> {
                    LOG.info("device {} -> {}", ss[0], ss[2]);
                    SERIAL_PRODUCT.put(ss[0], ss[2]);
                });
    }
    if (SERIAL_PRODUCT.isEmpty()) {
        throw new RuntimeException("No device detected.");
    }
    SERIALS.addAll(SERIAL_PRODUCT.keySet());
}

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From source file:com.wrmsr.wava.transform.Transforms.java

public static com.wrmsr.wava.core.unit.Function eliminateUnreferencedLocals(
        com.wrmsr.wava.core.unit.Function function) {
    LocalAnalysis.Entry la = LocalAnalysis.analyze(function.getBody()).get(function.getBody());
    List<Index> indices = new ArrayList<>(Sets.union(la.getLocalGets(), la.getLocalPuts()));
    Collections.sort(indices);//  www  .ja va2 s . co m
    Locals locals = Locals
            .of(function.getLocals().getList().stream().filter(l -> indices.contains(l.getIndex()))
                    .map(l -> ImmutablePair.of(l.getName(), l.getType())).collect(toImmutableList()));
    Map<Index, Index> indexMap = enumerate(indices.stream())
            .collect(toImmutableMap(i -> i.getItem(), i -> Index.of(i.getIndex())));
    return new com.wrmsr.wava.core.unit.Function(function.getName(), function.getResult(),
            function.getArgCount(), locals, remapLocals(function.getBody(), indexMap));
}

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