Example usage for com.google.common.collect Iterables transform

Introduction

In this page you can find the example usage for com.google.common.collect Iterables transform.

Prototype

@CheckReturnValue
public static <F, T> Iterable<T> transform(final Iterable<F> fromIterable,
        final Function<? super F, ? extends T> function)

Source Link

Document

Returns an iterable that applies function to each element of fromIterable .

Usage

From source file:com.yahoo.yqlplus.engine.sources.BatchKeySource.java

@Query
public Iterable<Person> lookupAll(@Key("id") List<String> ids) {
    return Iterables.transform(ids, new Function<String, Person>() {
        @Nullable//from  ww w  . j  av a  2  s. c  om
        @Override
        public Person apply(@Nullable String input) {
            return new Person(input, input, Integer.parseInt(input));
        }
    });
}

From source file:org.apache.isis.core.progmodel.facets.value.datetimejodalocal.JodaLocalDateTimeUtil.java

static LocalDateTime parseDate(final String dateStr, final Localization localization,
        List<DateTimeFormatter> parseFormatters) {
    Iterable<DateTimeFormatter> elements = Iterables.transform(parseFormatters,
            JodaFunctions.withLocale(localization));
    return parseDateTime(dateStr, elements);
}

From source file:org.apache.kylin.storage.hbase.util.ZookeeperUtil.java

/**
 * Get zookeeper connection string from HBase Configuration
 *
 * @return Zookeeper Connection string/*from   w w  w  .  ja v a  2 s.  com*/
 */
public static String getZKConnectString() {
    Configuration conf = HBaseConnection.getCurrentHBaseConfiguration();
    final String serverList = conf.get(HConstants.ZOOKEEPER_QUORUM);
    final String port = conf.get(HConstants.ZOOKEEPER_CLIENT_PORT);
    return StringUtils
            .join(Iterables.transform(Arrays.asList(serverList.split(",")), new Function<String, String>() {
                @Nullable
                @Override
                public String apply(String input) {
                    return input + ":" + port;
                }
            }), ",");
}

From source file:org.springframework.social.showcase.signin.SignInUtils.java

public static boolean isSignedIn() {
    Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
    if (authentication == null) {
        return false;
    }/*from  w  w  w . j  a  v a  2 s  .  c o  m*/

    Iterable<String> authorities = Iterables.transform(authentication.getAuthorities(), authorityName);

    return Iterables.contains(authorities, "ROLE_USER");
}

From source file:com.pingcap.tikv.TiConfiguration.java

public static TiConfiguration createDefault(List<String> pdAddrs) {
    TiConfiguration conf = new TiConfiguration();
    conf.pdAddrs = ImmutableList.copyOf(Iterables.transform(ImmutableSet.copyOf(pdAddrs).asList(),
            addStr -> HostAndPort.fromString(addStr)));
    return conf;//from w  ww  .j  a  v  a 2  s. c o m
}

From source file:rapture.table.mongodb.IndexNameFactory.java

static String createIndexName(IndexDefinition indexDefinition) {
    String indexName = indexDefinition.getIndexName();
    if (indexName == null) {
        Iterable<String> names = Iterables.transform(indexDefinition.getFields(),
                new Function<FieldDefinition, String>() {
                    @Override/*from   w w  w. j a v a 2 s .  com*/
                    public String apply(FieldDefinition input) {
                        return input.getName();
                    }
                });
        indexName = StringUtils.join(Lists.newArrayList(names), "") + "_idx";
    }
    return indexName;
}

From source file:ua.divas.mob.util.JsonReader.java

public static String encodeParams(final Map<String, String> params) {
    final String paramsUrl = Joiner.on('&').join(//    key1=value1&key2=value2...
            Iterables.transform(params.entrySet(), new Function<Entry<String, String>, String>() {

                @Override//  ww  w  .j  a v  a2 s.  com
                public String apply(final Entry<String, String> input) {
                    try {
                        final StringBuffer buffer = new StringBuffer();
                        buffer.append(input.getKey());//    key=value
                        buffer.append('=');
                        buffer.append(URLEncoder.encode(input.getValue(), "utf-8"));//  ?  ?? ? ? HTML 4.01
                        return buffer.toString();
                    } catch (final UnsupportedEncodingException e) {
                        throw new RuntimeException(e);
                    }
                }
            }));
    return paramsUrl;
}

From source file:com.google.cloud.bigtable.grpc.scanner.ReadRowTestUtils.java

static Iterable<Row> extractRowsWithKeys(Iterable<ReadRowsResponse> responses) {
    return Iterables.transform(responses, ROW_KEY_EXTRACTOR_FUNCTION);
}

From source file:com.github.ferstl.maven.pomenforcers.util.CommaSeparatorUtils.java

public static <T> void splitAndAddToCollection(String commaSeparatedItems, Collection<T> collection,
        Function<String, T> transformer) {
    Iterable<String> items = COMMA_SPLITTER.split(commaSeparatedItems);
    // Don't touch the collection if there is nothing to add.
    if (items.iterator().hasNext()) {
        collection.clear();/*from  w  w  w . j a v a 2 s.  co  m*/
    }
    Iterables.addAll(collection, Iterables.transform(items, transformer));
}

From source file:org.apache.mahout.clustering.streaming.tools.IOUtils.java

/**
 * Converts CentroidWritable values in a sequence file into Centroids lazily.
 * @param dirIterable the source iterable (comes from a SequenceFileDirIterable).
 * @return an Iterable<Centroid> with the converted vectors.
 *//*from ww w.  ja  va 2  s . c  o  m*/
public static Iterable<Centroid> getCentroidsFromCentroidWritableIterable(
        Iterable<CentroidWritable> dirIterable) {
    return Iterables.transform(dirIterable, new Function<CentroidWritable, Centroid>() {
        @Override
        public Centroid apply(CentroidWritable input) {
            Preconditions.checkNotNull(input);
            return input.getCentroid().clone();
        }
    });
}