List of usage examples for java.util.stream Collectors toMap
public static <T, K, U> Collector<T, ?, Map<K, U>> toMap(Function<? super T, ? extends K> keyMapper, Function<? super T, ? extends U> valueMapper)
From source file:com.karus.danktitles.commands.HelpSubcommand.java
@Override public void execute(CommandSender sender, String[] args) { // Methods inheritied from CommandChecker if (!checkLength(sender, args, 1, 3)) return;/*from ww w .jav a 2 s . c o m*/ if (!checkSender(sender, "danktitles.help")) return; LinkedHashMap<String, MutablePair<String, String>> parsedCommands; // Checks if the list needs to be filtered if (args.length == 1 || args[1].equals("all")) { parsedCommands = new LinkedHashMap<>( commands.entrySet().stream().filter(entry -> sender.hasPermission(entry.getValue().getLeft())) .collect(Collectors.toMap(e -> e.getKey(), e -> e.getValue()))); } else { parsedCommands = new LinkedHashMap<>(commands.entrySet().stream().filter( entry -> entry.getKey().contains(args[1]) && sender.hasPermission(entry.getValue().getLeft())) .collect(Collectors.toMap(e -> e.getKey(), e -> e.getValue()))); } if (parsedCommands.isEmpty()) { sender.sendMessage(ChatColor.RED + "No matches found."); return; } if (args.length == 3) { try { page = Integer.parseInt(args[2]); } catch (NumberFormatException e) { sender.sendMessage(ChatColor.RED + "Invalid page number!"); return; } } else { page = 1; } int totalPages = (int) Math.max(1, Math.floor(parsedCommands.size() / SIZE)); if (page <= 0 || page > totalPages) { sender.sendMessage(ChatColor.RED + "Invalid page number!"); return; } sender.sendMessage(ChatColor.GOLD + "[Commands - (" + ChatColor.RED + page + "/" + totalPages + ChatColor.GOLD + ") ]"); ArrayList<String> keys = new ArrayList<>(parsedCommands.keySet()); IntStream.range(page * SIZE - SIZE, parsedCommands.size()).limit(SIZE) .forEach(i -> sender.sendMessage(ChatColor.GOLD + commands.get(keys.get(i)).getRight())); }
From source file:de.tudarmstadt.ukp.dkpro.core.mallet.internal.wordembeddings.MalletEmbeddingsUtils.java
/** * Read embeddings in text format from an InputStream. * Each line is expected to have a whitespace-separated list {@code <token> <value1> <value2> ...}. * * @param inputStream an {@link InputStream} * @param hasHeader if true, read size and dimensionality from the first line * @return a {@code Map<String, double[]>} mapping each token to a vector. * @throws IOException if the input file cannot be read *///from w w w . j a v a2s . co m public static Map<String, double[]> readEmbeddingFileTxt(InputStream inputStream, boolean hasHeader) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); final int dimensions; final int size; if (hasHeader) { String[] header = reader.readLine().split(" "); assert header.length == 2; size = Integer.parseInt(header[0]); dimensions = Integer.parseInt(header[1]); } else { dimensions = -1; size = -1; } Map<String, double[]> embeddings = reader.lines().map(MalletEmbeddingsUtils::lineToEmbedding) .collect(Collectors.toMap(Pair::getKey, Pair::getValue)); reader.close(); /* assert size and dimension */ if (hasHeader) { /* check that size read matches header information */ LOG.debug("Checking number and vector sizes for all embeddings."); assert size == embeddings.size(); assert embeddings.values().stream().allMatch(vector -> dimensions == vector.length); } else { LOG.debug("Checking vector sizes for all embeddings."); int firstLength = embeddings.values().stream().findAny().get().length; assert embeddings.values().stream().allMatch(vector -> firstLength == vector.length); } return embeddings; }
From source file:io.yields.math.framework.kpi.ExplorerJsonExporter.java
@Override public void export(Explorer<?> explorer, File destinationFile) { ObjectMapper jsonMapper = getObjectMapper(); try {//w w w . ja v a 2s . com List<String> variableNames = explorer.all().findFirst().map(propertyVerification -> propertyVerification .getVariables().entrySet().stream().map(Map.Entry::getKey).sorted()).get().collect(toList()); List<Values> variableValues = explorer.all().map( propertyVerifications -> new Values(propertyVerifications.getVariables().entrySet().stream() .collect(Collectors.toMap(entry -> entry.getKey(), entry -> entry.getValue())))) .collect(Collectors.toList()); StandardResult variables = new StandardResult(buildDefinitions(variableNames, string -> ""), variableValues); PropertyVerifications<?> verifications = explorer.all().findAny() .orElseThrow(IllegalArgumentException::new); List<Definition> propertyDefinitions = buildDefinitions( verifications.getResults().stream().map(PropertyVerification::getName).collect(toList()), name -> verifications.getResults().stream() .filter(verification -> verification.getName().equals(name)) .map(verification -> verification.getProperty().map(Property::getExplanation) .orElse("")) .findAny().orElse("")); List<Values> propertiesValues = explorer.all() .map(propertyVerifications -> toValues(propertyVerifications)).collect(toList()); StandardResult properties = new StandardResult(propertyDefinitions, propertiesValues); Optional<Stats> statsTemplate = explorer.getStats().stream().findAny(); List<Definition> descriptorDefinitions = buildDefinitions( statsTemplate.map(Stats::getDescriptorNames).orElse(Collections.emptyList()), name -> statsTemplate.map(stats -> stats.getDescriptorExplanation(name)).orElse("")); List<Values> descriptorValues = explorer.getStats().stream().map(stats -> toDescriptorValues(stats)) .collect(Collectors.toList()); StandardResult descriptors = new StandardResult(descriptorDefinitions, descriptorValues); List<StatDefinition> statsDefinitions = buildStatDefinitions(explorer.getStats(), name -> statsTemplate.map(stats -> stats.getStatsExplanation(name)).orElse("")); List<Values> statsValues = explorer.getStats().stream().map(stats -> toStatsValues(stats)) .collect(Collectors.toList()); StatsResult statsDefinition = new StatsResult(statsDefinitions, statsValues); ScoreResult scoreResult = explorer.getScore(); ExplorerResult result = new ExplorerResult(explorer.getMetadata(), variables, statsDefinition, descriptors, properties, scoreResult); jsonMapper.writeValue(destinationFile, result); } catch (IOException ioe) { throw new IllegalStateException( format("Could not write explorer file at %s", destinationFile.getAbsolutePath()), ioe); } }
From source file:se.uu.it.cs.recsys.constraint.builder.ScheduleDomainBuilder.java
/** * For period 1 to 6. Periods 5, 6 are considered to have same domain as 1, * 2 respectively.//from w ww . j a v a2 s. com * * @param interestedCourseIdSet * @param periodsInfo * @return SetDomain for the 6 study periods */ public Map<Integer, SetDomain> createScheduleSetDomainsFor(Set<Integer> interestedCourseIdSet, Set<CourseSchedule> periodsInfo) { return getStartPeriodAndIdSetMapping(periodsInfo).entrySet().stream() .collect(Collectors.toMap(Map.Entry::getKey, entry -> { Set<Integer> planedCourseIdSet = entry.getValue(); planedCourseIdSet.retainAll(interestedCourseIdSet);//get intersection return planedCourseIdSet.isEmpty() ? SetDomain.emptyDomain : DomainBuilder.createDomain(planedCourseIdSet); })); }
From source file:com.github.horrorho.inflatabledonkey.chunk.engine.ChunkEngine.java
default Map<ChunkServer.ChunkReference, Chunk> fetch(HttpClient httpClient, Set<StorageHostChunkListContainer> storageHostChunkListContainerList, Function<ChunkServer.ChunkReference, Optional<byte[]>> getKeyEncryptionKey) { return storageHostChunkListContainerList.stream() .map(storageHostChunkList -> fetch(httpClient, storageHostChunkList, getKeyEncryptionKey)) .map(Map::entrySet).flatMap(Collection::stream) .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)); }
From source file:com.create.batch.TicketReaderFactory.java
public ItemStreamReader<Ticket> createReader(final Resource source) { final FlatFileItemReader<Ticket> reader = new FlatFileItemReader<>(); reader.setResource(source);/*from w w w. j a va 2s. c o m*/ final DefaultLineMapper<Ticket> lineMapper = new DefaultLineMapper<>(); final DelimitedLineTokenizer lineTokenizer = new DelimitedLineTokenizer(); lineTokenizer.setNames(TICKET_FILE_CSV_FIELDS); lineMapper.setLineTokenizer(lineTokenizer); final BeanWrapperFieldSetMapper<Ticket> fieldMapper = new BeanWrapperFieldSetMapper<>(); fieldMapper.setTargetType(Ticket.class); final DateFormat df = new SimpleDateFormat(DATE_FORMAT); final Map<Class, PropertyEditor> customEditors = Stream .of(new AbstractMap.SimpleEntry<>(Date.class, new CustomDateEditor(df, false))) .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)); fieldMapper.setCustomEditors(customEditors); lineMapper.setFieldSetMapper(fieldMapper); reader.setLineMapper(lineMapper); return reader; }
From source file:nu.yona.server.goals.service.ActivityCategoryDto.java
private static Map<Locale, String> mapToLocaleMap(Map<String, String> localeStringMap) { return localeStringMap.entrySet().stream() .collect(Collectors.toMap(e -> Locale.forLanguageTag(e.getKey()), Map.Entry::getValue)); }
From source file:org.obiba.mica.variable.search.EsPublishedDatasetVariableService.java
public Map<String, Long> getCountByStudyIds(List<String> studyIds) { Searcher.DocumentResults results = executeCountQuery(buildStudiesFilteredQuery(studyIds)); if (results == null) return studyIds.stream().collect(Collectors.toMap(s -> s, s -> 0L)); Map<String, Long> aggs = results.getAggregation(STUDY_ID_FIELD); return studyIds.stream().collect(Collectors.toMap(s -> s, s -> aggs.getOrDefault(s, 0L))); }
From source file:me.bramhaag.discordselfbot.commands.admin.CommandEvaluate.java
@Command(name = "evaluate", aliases = { "eval", "e" }, minArgs = 1) public void execute(@NonNull Message message, @NonNull TextChannel channel, @NonNull String[] args) { String input = Util.combineArgs(Arrays.copyOfRange(args, 1, args.length)); Evaluate.Language language = Evaluate.Language.getLanguage(args[0]); if (language == null) { language = Evaluate.Language.JAVASCRIPT; input = Util.combineArgs(args); }/*from w w w . ja va2 s .c om*/ input = input.startsWith("```") && input.endsWith("```") ? input.substring(3, input.length() - 3) : input; Evaluate.Result result = language.evaluate(Collections.unmodifiableMap(Stream .of(ent("jda", message.getJDA()), ent("channel", message.getChannel()), ent("guild", message.getGuild()), ent("msg", message), ent("user", message.getAuthor()), ent("member", message.getGuild().getMember(message.getAuthor())), ent("bot", message.getJDA().getSelfUser())) .collect(Collectors.toMap(AbstractMap.SimpleEntry::getKey, AbstractMap.SimpleEntry::getValue))), input); message.editMessage(new EmbedBuilder() .setTitle("Evaluate " + StringUtils.capitalize(language.name().toLowerCase()), null) .addField("Input", new MessageBuilder().appendCodeBlock(input, language.name().toLowerCase()).build() .getRawContent(), true) .addField("Output", new MessageBuilder().appendCodeBlock(result.getOutput(), "javascript").build() .getRawContent(), true) .setFooter(result.getStopwatch().elapsed(TimeUnit.NANOSECONDS) == 0 ? Constants.CROSS_EMOTE + " An error occurred" : String.format(Constants.CHECK_EMOTE + " Took %d ms (%d ns) to complete | %s", result.getStopwatch().elapsed(TimeUnit.MILLISECONDS), result.getStopwatch().elapsed(TimeUnit.NANOSECONDS), Util.generateTimestamp()), null) .setColor(color).build()).queue(); }
From source file:org.openlmis.fulfillment.web.BaseController.java
Map<String, String> getErrors(BindingResult bindingResult) {
return bindingResult.getFieldErrors().stream()
.collect(Collectors.toMap(FieldError::getField, FieldError::getCode));
}