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:alfio.util.Validator.java

private static boolean containsAllRequiredTranslations(EventModification eventModification,
        List<EventModification.AdditionalServiceText> descriptions) {
    Optional<EventModification> optional = Optional.ofNullable(eventModification);
    return !optional.isPresent() || optional.map(e -> ContentLanguage.findAllFor(e.getLocales()))
            .filter(l -> l.stream().allMatch(
                    l1 -> descriptions.stream().anyMatch(d -> d.getLocale().equals(l1.getLanguage()))))
            .isPresent();//from   w  w  w . j  a  v  a  2  s  .  co m
}

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From source file:eu.itesla_project.modules.validation.OverloadValidationTool.java

private static void writeCsv(Set<String> contingencyIds,
        Map<String, Map<String, OverloadStatus>> statusPerContingencyPerCase, Path outputDir)
        throws IOException {
    try (BufferedWriter writer = Files.newBufferedWriter(outputDir.resolve("comparison.csv"),
            StandardCharsets.UTF_8)) {
        writer.write("base case");
        for (String contingencyId : contingencyIds) {
            writer.write(CSV_SEPARATOR);
            writer.write(contingencyId + " load flow");
            writer.write(CSV_SEPARATOR);
            writer.write(contingencyId + " offline rule");
        }//from  w  w  w  .  j a  v a2 s  .c  o  m
        writer.newLine();

        for (Map.Entry<String, Map<String, OverloadStatus>> e : statusPerContingencyPerCase.entrySet()) {
            String baseCaseName = e.getKey();
            Map<String, OverloadStatus> statusPerContingency = e.getValue();
            writer.write(baseCaseName);
            for (String contingencyId : contingencyIds) {
                OverloadStatus overloadStatus = statusPerContingency.get(contingencyId);
                writer.write(CSV_SEPARATOR);
                writer.write(Boolean.toString(overloadStatus.isLfOk()));
                writer.write(CSV_SEPARATOR);
                writer.write(Boolean.toString(overloadStatus.isOfflineRuleOk()));
            }
            writer.newLine();
        }
    }

    List<String> categories = Arrays.asList("OK_OK", "NOK_NOK", "OK_NOK", "NOK_OK");

    Map<String, Map<String, AtomicInteger>> synthesisPerContingency = new HashMap<>();
    for (String contingencyId : contingencyIds) {
        synthesisPerContingency.put(contingencyId,
                categories.stream().collect(Collectors.toMap(Function.identity(), e -> new AtomicInteger())));
    }
    for (Map.Entry<String, Map<String, OverloadStatus>> e : statusPerContingencyPerCase.entrySet()) {
        Map<String, OverloadStatus> statusPerContingency = e.getValue();
        for (String contingencyId : contingencyIds) {
            OverloadStatus overloadStatus = statusPerContingency.get(contingencyId);
            synthesisPerContingency.get(contingencyId).get(
                    okToString(overloadStatus.isLfOk()) + "_" + okToString(overloadStatus.isOfflineRuleOk()))
                    .incrementAndGet();
        }
    }

    try (BufferedWriter writer = Files.newBufferedWriter(outputDir.resolve("synthesis.csv"),
            StandardCharsets.UTF_8)) {
        writer.write("contingency");
        for (String c : categories) {
            writer.write(CSV_SEPARATOR);
            writer.write(c);
        }
        writer.newLine();
        for (Map.Entry<String, Map<String, AtomicInteger>> e : synthesisPerContingency.entrySet()) {
            String contingencyId = e.getKey();
            Map<String, AtomicInteger> count = e.getValue();
            writer.write(contingencyId);
            for (String c : categories) {
                writer.write(CSV_SEPARATOR);
                writer.write(Integer.toString(count.get(c).get()));
            }
            writer.newLine();
        }
    }
}

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From source file:com.github.anba.es6draft.util.Resources.java

private static Iterable<String> nonEmpty(List<?> c) {
    return () -> c.stream().filter(x -> (x != null && !x.toString().isEmpty())).map(Object::toString)
            .iterator();/*from   ww w.j  av a  2  s .  c  om*/
}

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From source file:com.twosigma.beakerx.table.serializer.TableDisplayDeSerializer.java

@NotNull
private static Object handleIndex(JsonNode n, ObjectMapper mapper, List<List<?>> values, List<String> columns,
        List<String> classes) throws IOException {
    List<String> indexName = (List<String>) mapper.readValue(n.get(INDEX_NAME).toString(), List.class);
    boolean standardIndex = indexName.size() == 1 && indexName.get(0).equals(INDEX);
    if (standardIndex) {
        columns.remove(0);/*from w w  w  . j  a v  a  2  s.c o  m*/
        classes.remove(0);
        for (List<?> v : values) {
            v.remove(0);
        }
    } else {
        columns.set(0, join(", ", indexName.stream().map(TableDisplayDeSerializer::convertNullToIndexName)
                .collect(Collectors.toList())));
    }
    TableDisplay td = new TableDisplay(values, columns, classes);
    if (!standardIndex) {
        td.setHasIndex("true");
    }
    return td;
}

---

From source file:library.entry.Main.java

private static void viewbooks(List<Book> books) {
    if (books.isEmpty()) {
        ConsoleHelper.printMessage("");
        ConsoleHelper.printMessage("==== No books available ====");
        return;//w w  w  . j a va 2s. com
    }
    while (true) {
        ConsoleHelper.printMessage("");
        ConsoleHelper.printMessage("To view details enter the book ID, to return press <Enter>");
        ConsoleHelper.printMessage("");
        books.stream().forEach(o -> ConsoleHelper.printBookSelection(o.getId(), o.getTitle()));
        ConsoleHelper.printMessage("");
        ConsoleHelper.printPrompt("Book ID");
        Integer selectedId = ConsoleHelper.getInt(true);
        if (selectedId == null) {
            break;
        } else {
            books.stream().filter(b -> b.getId() == selectedId).forEach(b -> {
                ConsoleHelper.printMessage(String.format("ID: %s", "" + b.getId()), 1);
                ConsoleHelper.printMessage(String.format("Title: %s", b.getTitle()), 1);
                ConsoleHelper.printMessage(String.format("Author: %s", b.getAuthor()), 1);
                ConsoleHelper.printMessage(String.format("Description: %s", b.getDescription()), 1);
            });
        }
    }
}

---

From source file:ai.grakn.graql.GraqlShell.java

private static String loadQuery(String filePath) throws IOException {
    List<String> lines = Files.readAllLines(Paths.get(filePath), StandardCharsets.UTF_8);
    return lines.stream().collect(joining("\n"));
}

---

From source file:com.jaredrummler.android.devices.Main.java

private static void writeJavaSwitchStatement(List<String[]> devices) throws IOException {
    StringBuilder sb = new StringBuilder();
    Map<String, Set<String>> deviceMap = new TreeMap<>((o1, o2) -> {
        return o1.compareToIgnoreCase(o2);
    });/*from   w  w  w. ja v a2s  .c o  m*/

    for (String name : POPULAR_DEVICES) {
        List<String> list = new ArrayList<>();
        Set<String> codenames = new HashSet<>();
        devices.stream().filter(arr -> arr[1].equals(name)).forEach(arr -> {
            list.add(arr[2]);
        });
        Collections.sort(list);
        codenames.addAll(list);
        deviceMap.put(name, codenames);
    }

    // TODO: Use JavaPoet and create a working class.
    sb.append("public static String getDeviceName(String codename, String fallback) {\n");
    sb.append("  switch (codename) {\n");
    for (Map.Entry<String, Set<String>> entry : deviceMap.entrySet()) {
        Set<String> codenames = entry.getValue();
        for (String codename : codenames) {
            sb.append("    case \"" + codename + "\":\n");
        }
        sb.append("      return \"" + entry.getKey() + "\";\n");
    }
    sb.append("    default:\n");
    sb.append("      return fallback;\n\t}\n}");

    System.out.println(sb.toString());
    new File("json").mkdirs();
    FileUtils.write(new File("json/gist.txt"), sb.toString());
}

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From source file:net.minecraftforge.fml.relauncher.libraries.LibraryManager.java

public static List<Artifact> flattenLists(File mcDir) {
    List<Artifact> merged = new ArrayList<>();
    for (ModList list : ModList.getBasicLists(mcDir)) {
        for (Artifact art : list.flatten()) {
            Optional<Artifact> old = merged.stream().filter(art::matchesID).findFirst();
            if (!old.isPresent()) {
                merged.add(art);//from  ww w. j a  v  a 2s.  c om
            } else if (old.get().getVersion().compareTo(art.getVersion()) < 0) {
                merged.add(merged.indexOf(old.get()), art);
                merged.remove(old.get());
            }
        }
    }
    return merged;
}

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From source file:org.eclipse.sw360.datahandler.common.SW360Utils.java

public static <T> Map<String, T> putReleaseNamesInMap(Map<String, T> map, List<Release> releases) {
    if (map == null || releases == null) {
        return Collections.emptyMap();
    }//  ww  w . jav a2  s .  c o  m
    Map<String, T> releaseNamesMap = new HashMap<>();
    releases.stream().forEach(r -> releaseNamesMap.put(printName(r), map.get(r.getId())));
    return releaseNamesMap;
}

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From source file:org.eclipse.sw360.datahandler.common.SW360Utils.java

public static <T> Map<String, T> putProjectNamesInMap(Map<String, T> map, List<Project> projects) {
    if (map == null || projects == null) {
        return Collections.emptyMap();
    }/*from  w  w w .ja  v a2  s.co m*/
    Map<String, T> projectNamesMap = new HashMap<>();
    projects.stream().forEach(p -> projectNamesMap.put(printName(p), map.get(p.getId())));
    return projectNamesMap;
}

---

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