Example usage for com.google.common.collect Maps transformValues

Introduction

In this page you can find the example usage for com.google.common.collect Maps transformValues.

Prototype

@GwtIncompatible("NavigableMap")
public static <K, V1, V2> NavigableMap<K, V2> transformValues(NavigableMap<K, V1> fromMap,
        Function<? super V1, V2> function)

Source Link

Document

Returns a view of a navigable map where each value is transformed by a function.

Usage

From source file:kn.uni.gis.dataimport.Main.java

private static void insertData(SQLFacade sqlConnection, final String tableName, final List<String> readLines)
        throws SQLException {
    // Mapping from id -> multiple (parsed) lines
    Multimap<String, List<String>> index = Multimaps
            .index(Lists.transform(readLines, new Function<String, List<String>>() {
                @Override//from w  w w  .ja  va2 s  . c o  m
                public List<String> apply(String input) {
                    ArrayList<String> newArrayList = Lists
                            .newArrayList(Splitter.on("\t").trimResults().split(input));
                    newArrayList.remove(newArrayList.size() - 1);
                    return newArrayList;

                }

            }), new Function<List<String>, String>() {
                @Override
                public String apply(List<String> input) {
                    return input.get(ID_INDEX);
                }
            });

    // Collapse now to a mapping id -> one line
    Map<String, List<String>> collapsedValues = Maps.transformValues(index.asMap(),
            new Function<Collection<List<String>>, List<String>>() {

                @Override
                public List<String> apply(Collection<List<String>> input) {
                    List<String> toReturn = Lists.newArrayList();

                    // set id
                    List<String> firstLine = input.iterator().next();
                    toReturn.add(firstLine.get(0));

                    // set coordinates
                    StringBuilder stringBuilder = new StringBuilder();

                    for (List<String> ret : input) {
                        stringBuilder.append(ret.get(1));
                        stringBuilder.append(" ");
                        stringBuilder.append(ret.get(2));
                        stringBuilder.append(",");
                    }
                    String coords = stringBuilder.toString();

                    // add additional line data
                    for (int i = 5; i < firstLine.size(); i++) {
                        toReturn.add("'" + firstLine.get(i).replaceAll("'", "''") + "'");
                    }

                    // delete last ',' and add GeoInformation as last column
                    toReturn.add(GeoColumn.getGeoColumn(tableName)
                            .getGeoInsertionSQL(coords.substring(0, coords.lastIndexOf(','))));
                    return toReturn;
                }

            });

    List<String> toexecute = Lists.newArrayList();
    for (Map.Entry<String, List<String>> entry : collapsedValues.entrySet()) {
        toexecute.add(String.format("insert into \"%s\" values (%s);", tableName,
                Joiner.on(",").join(entry.getValue())));
    }
    sqlConnection.executeBatch(toexecute.toArray(new String[toexecute.size()]));

}

From source file:com.twitter.common.stats.NumericStatExporter.java

/**
 * Starts the stat exporter./*  w  w  w .  j av a2  s.c om*/
 *
 * @param shutdownRegistry Shutdown hook registry to allow the exporter to cleanly halt.
 */
public void start(ShutdownRegistry shutdownRegistry) {
    long intervalSecs = exportInterval.as(Time.SECONDS);
    executor.scheduleAtFixedRate(exporter, intervalSecs, intervalSecs, TimeUnit.SECONDS);

    shutdownRegistry.addAction(new Command() {
        @Override
        public void execute() {
            stop();
            exportSink.execute(Maps.transformValues(Maps.uniqueIndex(Stats.getNumericVariables(), GET_NAME),
                    SAMPLE_AND_READ_STAT));
        }
    });
}

From source file:com.google.devtools.build.skyframe.InMemoryGraphImpl.java

@Override
public Map<SkyKey, SkyValue> getValues() {
    return Collections
            .unmodifiableMap(Maps.transformValues(nodeMap, new Function<InMemoryNodeEntry, SkyValue>() {
                @Override/*  ww w  . j  a v a 2  s.  co m*/
                public SkyValue apply(InMemoryNodeEntry entry) {
                    return entry.toValue();
                }
            }));
}

From source file:org.apache.fluo.api.client.AbstractSnapshotBase.java

@Override
public Map<RowColumn, String> gets(Collection<RowColumn> rowColumns) {
    Map<RowColumn, Bytes> bytesMap = get(rowColumns);
    return Maps.transformValues(bytesMap, b -> b.toString());
}

From source file:com.facebook.swift.codec.ArrayField.java

public Map<Short, List<Short>> getMapShortList() {
    if (mapShortArray == null) {
        return null;
    }//from w w w  . j  a va  2 s.  c  o m
    return Maps.transformValues(mapShortArray, shortArrayAsList());
}

From source file:ai.grakn.migration.sql.SQLMigrator.java

/**
 * Convert values to be valid - removing nulls and changing to supported types
 * @param data data to make valid/*from   w ww . j ava  2  s.  co m*/
 * @return valid data
 */
private Map<String, Object> convertToValidValues(Map<String, Object> data) {
    data = Maps.filterValues(data, Objects::nonNull);
    data = Maps.transformValues(data, this::convertToSupportedTypes);
    return data;
}

From source file:io.airlift.drift.codec.ArrayField.java

public Map<Short, List<Short>> getMapShortList() {
    if (mapShortArray == null) {
        return null;
    }// w  ww  .j  a v  a 2 s  .com
    return Maps.transformValues(mapShortArray, Shorts::asList);
}

From source file:org.onosproject.cluster.LeadershipService.java

/**
 * Returns the candidate nodes for each topic.
 *
 * @return A mapping from topics to corresponding list of candidates.
 * @deprecated 1.6.0 Goldeneye release. Replace usages with {@link #getLeadership(String)}
 *///from   w w  w  .  j av a2s.c o m
@Deprecated
default Map<String, List<NodeId>> getCandidates() {
    return ImmutableMap
            .copyOf(Maps.transformValues(getLeaderBoard(), v -> ImmutableList.copyOf(v.candidates())));
}

From source file:org.spongepowered.common.config.type.GlobalConfig.java

public Map<String, Predicate<InetAddress>> getIpSets() {
    return ImmutableMap
            .copyOf(Maps.transformValues(this.ipSets, new Function<List<IpSet>, Predicate<InetAddress>>() {
                @Nullable//from  w w  w. ja  va2  s.com
                @Override
                public Predicate<InetAddress> apply(List<IpSet> input) {
                    return Predicates.and(input);
                }
            }));
}

From source file:com.google.template.soy.data.internal.AbstractDict.java

@Override
@Nonnull//from   w  w  w . j  a  va2 s.co m
public final Map<String, ? extends SoyValue> asResolvedJavaStringMap() {
    return Maps.transformValues(asJavaStringMap(), Transforms.RESOLVE_FUNCTION);
}