Example usage for java.util.stream Collectors toMap

Introduction

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

Prototype

public static <T, K, U> Collector<T, ?, Map<K, U>> toMap(Function<? super T, ? extends K> keyMapper,
        Function<? super T, ? extends U> valueMapper)

Source Link

Document

Returns a Collector that accumulates elements into a Map whose keys and values are the result of applying the provided mapping functions to the input elements.

Usage

From source file:com.haulmont.cuba.core.sys.AvailableLocalesFactory.java

@Override
public Object build(String string) {
    if (string == null)
        return null;

    return Arrays.stream(string.split(";")).map(item -> item.split("\\|"))
            .collect(Collectors.toMap(parts -> parts[0], parts -> LocaleUtils.toLocale(parts[1])));
}

From source file:ConcurrentTest.java

@BeforeClass
public static void setUpClass() throws IOException {

    List<HashResultHolder> list = new ObjectMapper().readValue(
            JacksonJacksumTest.class.getResourceAsStream("/jacksum_image.json"),
            new TypeReference<List<HashResultHolder>>() {
            });/*  w ww. ja v  a  2 s . c om*/

    IMAGE_FILE_RESULTS = list.stream()
            .collect(Collectors.toMap(HashResultHolder::getAlgorithm, Function.identity()));

}

From source file:com.github.tddts.jet.oauth.impl.QueryParserImpl.java

@Override
public Map<String, String> toMap(List<NameValuePair> pairs) {
    return pairs.stream().collect(Collectors.toMap(NameValuePair::getName, NameValuePair::getValue));
}

From source file:ru.xxlabaza.popa.pack.comment.CommentRemoveService.java

@Autowired
public CommentRemoveService(List<CommentRemover> commentRemovers) {
    this.commentRemovers = commentRemovers.stream()
            .collect(Collectors.toMap(CommentRemover::getType, Function.identity()));
}

From source file:org.obiba.mica.micaConfig.service.helper.DatasetIdAggregationMetaDataHelper.java

@Cacheable(value = "aggregations-metadata", key = "'dataset'")
public Map<String, AggregationMetaDataProvider.LocalizedMetaData> getDatasets() {
    try {/* ww  w  .  j a va 2 s . co m*/
        List<Dataset> datasets = sudo(() -> publishedDatasetService.findAll());
        return datasets.stream()
                .collect(Collectors.toMap(Dataset::getId,
                        d -> new AggregationMetaDataProvider.LocalizedMetaData(d.getAcronym(), d.getName(),
                                d.getClassName())));
    } catch (Exception e) {
        log.debug("Could not build Dataset aggregation metadata {}", e);
        return Maps.newHashMap();
    }
}

From source file:org.obiba.mica.micaConfig.service.helper.NetworkIdAggregationMetaDataHelper.java

@Cacheable(value = "aggregations-metadata", key = "'network'")
public Map<String, AggregationMetaDataProvider.LocalizedMetaData> getNetworks() {
    try {/*from   ww w.j  av  a 2 s  .c o  m*/
        List<Network> networks = sudo(() -> publishedNetworkService.findAll());
        return networks.stream()
                .collect(Collectors.toMap(Network::getId,
                        d -> new AggregationMetaDataProvider.LocalizedMetaData(d.getAcronym(), d.getName(),
                                d.getClass().getSimpleName())));
    } catch (Exception e) {
        log.debug("Could not build Network aggregation metadata {}", e);
        return Maps.newHashMap();
    }
}

From source file:net.anyflow.lannister.httphandler.Sessions.java

private String liveString() {
    try {//from w  ww . j a va  2  s  . c  o m
        return (new ObjectMapper())
                .writeValueAsString(Session.NEXUS.map().values().stream().filter(s -> s.isConnected(false))
                        .collect(Collectors.toMap(Session::clientId, Function.identity())));
    } catch (JsonProcessingException e) {
        logger.error(e.getMessage(), e);
        return null;
    }
}

From source file:io.knotx.launcher.SystemPropsConfiguration.java

public SystemPropsConfiguration(String identifier) {
    envConfig = System.getProperties().entrySet().stream()
            .filter(entry -> onlyPropertyForIdentifier(entry, identifier))
            .collect(Collectors.toMap(
                    entry -> StringUtils.substringAfter((String) entry.getKey(), identifier + "."),
                    entry -> new Value((String) entry.getValue())));
}

From source file:Main.java

/**
 * @param entries//from  w  ww  . j a va 2  s.  c  o m
 *            the <i>final</i> set of entries to add to the newly created
 *            <i>unmodifiable</i> map
 * @return an <i>unmodifiable</i> map with all given entries
 */
@SafeVarargs
public static <K, V> Map<K, V> map(Entry<K, V>... entries) {
    return Collections
            .unmodifiableMap(Arrays.stream(entries).collect(Collectors.toMap(Entry::getKey, Entry::getValue)));
}

From source file:com.karus.danktitles.commands.HelpSubcommand.java

public HelpSubcommand() {
    commands = new LinkedHashMap<>(DankTitles.instance.getDescription().getCommands().entrySet().stream()
            .collect(Collectors.toMap((e) -> e.getKey(),
                    (e) -> new MutablePair<>((String) e.getValue().get("permission"),
                            (String) e.getValue().get("usage")))));
}