Example usage for com.google.common.collect Multimaps index

List of usage examples for com.google.common.collect Multimaps index

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Introduction

In this page you can find the example usage for com.google.common.collect Multimaps index.

Prototype

public static <K, V> ImmutableListMultimap<K, V> index(Iterator<V> values, Function<? super V, K> keyFunction)

Source Link

Document

Creates an index ImmutableListMultimap that contains the results of applying a specified function to each item in an Iterator of values.

Usage

From source file:org.opentestsystem.authoring.testauth.service.impl.ItemMetadataKeysServiceImpl.java

@Override
public void loadTibItemImportIntoItemMetadataKeys(final String assessmentId, final List<TibItem> tibItemList) {
    checkForLockedAssessment(assessmentId);
    final Set<String> metadataKeys = Sets
            .newHashSet(Iterables.concat(Multimaps.index(tibItemList, TIBITEM_METADATA_KEYS).asMap().keySet()));
    ItemMetadataKeys itemMetadataKeys = getItemMetadataKeysByAssessment(assessmentId);
    if (itemMetadataKeys == null) {
        itemMetadataKeys = new ItemMetadataKeys();
        itemMetadataKeys.setAssessmentId(assessmentId);
        itemMetadataKeys.setItemMetadataKeys(metadataKeys);
    } else {/*from  www .  java  2 s. com*/
        itemMetadataKeys.getItemMetadataKeys().addAll(metadataKeys);
    }
    try {
        this.itemMetadataKeysRepository.save(itemMetadataKeys);
    } catch (final DuplicateKeyException dke) {
        throw new LocalizedException("itemMetadataKeys.already.exists", new String[] {}, dke);
    }
}

From source file:com.twitter.aurora.scheduler.http.Maintenance.java

@GET
@Produces(MediaType.APPLICATION_JSON)/*from   ww w  .  j  a va  2  s . c om*/
public Response getHosts() {
    return storage.weaklyConsistentRead(new Work.Quiet<Response>() {
        @Override
        public Response apply(StoreProvider storeProvider) {
            Multimap<MaintenanceMode, String> hostsByMode = Multimaps.transformValues(
                    Multimaps.index(storeProvider.getAttributeStore().getHostAttributes(), GET_MODE),
                    HOST_NAME);

            Map<MaintenanceMode, Object> hosts = Maps.newHashMap();
            hosts.put(DRAINED, ImmutableSet.copyOf(hostsByMode.get(DRAINED)));
            hosts.put(SCHEDULED, ImmutableSet.copyOf(hostsByMode.get(SCHEDULED)));
            hosts.put(DRAINING, getTasksByHosts(storeProvider, hostsByMode.get(DRAINING)).asMap());
            return Response.ok(hosts).build();
        }
    });
}

From source file:springfox.documentation.spring.web.plugins.DefaultRequestHandlerCombiner.java

private Collection<? extends RequestHandler> combined(Collection<RequestHandler> requestHandlers) {
    List<RequestHandler> source = newArrayList(requestHandlers);
    if (source.size() == 0 || source.size() == 1) {
        return requestHandlers;
    }/*ww w .j a  v a2 s .c om*/
    ListMultimap<Equivalence.Wrapper<RequestHandler>, RequestHandler> groupByEquality = Multimaps.index(source,
            equivalenceAsKey());
    List<RequestHandler> combined = newArrayList();
    for (Equivalence.Wrapper<RequestHandler> path : groupByEquality.keySet()) {
        List<RequestHandler> handlers = groupByEquality.get(path);

        RequestHandler toCombine = path.get();
        if (handlers.size() > 1) {
            for (RequestHandler each : handlers) {
                toCombine = combine(toCombine, each);
            }
        }
        combined.add(toCombine);
    }
    return combined;
}

From source file:com.b2international.snowowl.snomed.datastore.converter.MembersExpander.java

void expand(List<? extends SnomedCoreComponent> results, Set<String> componentIds) {
    if (expand.containsKey("members")) {
        final Options membersOptions = expand.get("members", Options.class);
        // TODO support limit, offset, filtering, selection
        final SnomedReferenceSetMembers matchingMembers = SnomedRequests.prepareSearchMember().all()
                .filterByReferencedComponent(componentIds).setLocales(locales)
                .setExpand(membersOptions.get("expand", Options.class)).build().execute(context);
        final Multimap<String, SnomedReferenceSetMember> membersByReferencedComponentId = Multimaps
                .index(matchingMembers, new Function<SnomedReferenceSetMember, String>() {
                    @Override/*from w w  w  .j av  a  2  s  .  c o m*/
                    public String apply(SnomedReferenceSetMember input) {
                        return input.getReferencedComponent().getId();
                    }
                });
        for (SnomedCoreComponent component : results) {
            final Collection<SnomedReferenceSetMember> members = membersByReferencedComponentId
                    .get(component.getId());
            ((SnomedCoreComponent) component).setMembers(new SnomedReferenceSetMembers(
                    ImmutableList.copyOf(members), null, null, members.size(), members.size()));
        }
    }
}

From source file:org.apache.aurora.scheduler.base.Tasks.java

/**
 * A utility method that returns a multi-map of tasks keyed by IJobKey.
 *
 * @param tasks A list of tasks to be keyed by map
 * @return A multi-map of tasks keyed by job key.
 *///  w w  w  .  ja v  a  2s  .c  o m
public static Multimap<IJobKey, IScheduledTask> byJobKey(Iterable<IScheduledTask> tasks) {
    return Multimaps.index(tasks, Tasks::getJob);
}

From source file:edu.isi.karma.modeling.research.approach1.RankedSteinerSet.java

private List<Integer> computeCohesion() {

    if (nodes == null)
        return null;

    List<String> patternIds = new ArrayList<String>();

    for (Node n : nodes)
        for (String s : n.getPatternIds())
            patternIds.add(s);/* w w w. j  a v  a  2 s  . c  o  m*/

    Function<String, String> stringEqualiy = new Function<String, String>() {
        @Override
        public String apply(final String s) {
            return s;
        }
    };

    Multimap<String, String> index = Multimaps.index(patternIds, stringEqualiy);

    List<Integer> frequencies = new ArrayList<Integer>();
    for (String s : index.keySet()) {
        frequencies.add(index.get(s).size());
    }

    Collections.sort(frequencies);
    frequencies = Lists.reverse(frequencies);
    return frequencies;

}

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. j  a  v  a 2s. 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.sun.tools.hat.internal.server.RootsQuery.java

@Override
public void run() {
    long id = parseHex(query);
    JavaHeapObject target = snapshot.findThing(id);
    if (target == null) {
        startHtml("Object not found for rootset");
        error("object not found");
        endHtml();/* www  .jav a2  s  .c  o m*/
        return;
    }
    if (includeWeak) {
        startHtml("Rootset references to " + target + " (includes weak refs)");
    } else {
        startHtml("Rootset references to " + target + " (excludes weak refs)");
    }
    out.flush();

    out.print("<h1>References to ");
    printThing(target);
    out.println("</h1>");
    // More interesting values are *higher*
    Multimap<Integer, ReferenceChain> refs = Multimaps.index(snapshot.rootsetReferencesTo(target, includeWeak),
            chain -> chain.getObj().getRoot().getType());
    refs.asMap().entrySet().stream().sorted(Ordering.natural().reverse().onResultOf(entry -> entry.getKey()))
            .forEach(entry -> {
                out.print("<h2>");
                print(Root.getTypeName(entry.getKey()) + " References");
                out.println("</h2>");
                entry.getValue().stream().sorted(Ordering.natural().onResultOf(ReferenceChain::getDepth))
                        .forEach(ref -> {
                            Root root = ref.getObj().getRoot();
                            out.print("<h3>");
                            printRoot(root);
                            if (root.getReferer() != null) {
                                out.print("<small> (from ");
                                printThingAnchorTag(root.getReferer().getId());
                                print(root.getReferer().toString());
                                out.print(")</a></small>");

                            }
                            out.print(" :</h3>");
                            while (ref != null) {
                                ReferenceChain next = ref.getNext();
                                JavaHeapObject obj = ref.getObj();
                                print("--> ");
                                printThing(obj);
                                if (next != null) {
                                    print(" (" + obj.describeReferenceTo(next.getObj(), snapshot) + ":)");
                                }
                                out.println("<br>");
                                ref = next;
                            }
                        });
            });

    out.println("<h2>Other queries</h2>");

    if (includeWeak) {
        printAnchorStart();
        out.print("roots/");
        printHex(id);
        out.print("\">");
        out.println("Exclude weak refs</a><br>");
        endHtml();
    }

    if (!includeWeak) {
        printAnchorStart();
        out.print("allRoots/");
        printHex(id);
        out.print("\">");
        out.println("Include weak refs</a><br>");
    }
}

From source file:com.nesscomputing.service.discovery.testing.client.MemoryDiscoveryClient.java

private void updateStateOfTheWorld() {

    Map<String, ConsistentRingGroup> newWorldOrder = Maps
            .transformValues(Multimaps.index(announcements, GET_SERVICE_NAME).asMap(), BUILD_RING_GROUP);

    getStateOfTheWorldHolder().setState(newWorldOrder);

    LOG.trace("Pushed out discovery update, new world order = %s", newWorldOrder);
}

From source file:org.opencms.ade.sitemap.shared.CmsSitemapCategoryData.java

/**
 * Gets a multimap of the top-level entries, indexed by whether they are local categories or not.<p>
 *
 * A category counts as local if all of its parent categories are defined in the current sitemap.
 *
 * @return the multimap of entries/*w  w w .jav a  2s  . c  o  m*/
 */
public Multimap<Boolean, CmsCategoryTreeEntry> getEntriesIndexedByLocality() {

    return ArrayListMultimap
            .create(Multimaps.index(m_categoryEntries, new Function<CmsCategoryTreeEntry, Boolean>() {

                @SuppressWarnings("synthetic-access")
                public Boolean apply(CmsCategoryTreeEntry entry) {

                    return Boolean.valueOf(entry.getBasePath().equals(m_basePath));
                }
            }));
}