Example usage for com.google.common.collect HashMultimap create

Introduction

In this page you can find the example usage for com.google.common.collect HashMultimap create.

Prototype

public static <K, V> HashMultimap<K, V> create() 

Source Link

Document

Creates a new, empty HashMultimap with the default initial capacities.

Usage

From source file:edu.buaa.satla.analysis.util.GraphUtils.java

/**
 * Project a graph to a subset of "relevant" nodes.
 * The result is a SetMultimap containing the successor relationships between all relevant nodes.
 * A pair of nodes (a, b) is in the SetMultimap,
 * if there is a path through the graph from a to b which does not pass through
 * any other relevant node.//from w  w  w. j a  v a 2s . com
 *
 * To get the predecessor relationship, you can use {@link Multimaps#invertFrom(com.google.common.collect.Multimap, com.google.common.collect.Multimap)}.
 *
 * @param root The start of the graph to project (always considered relevant).
 * @param isRelevant The predicate determining which nodes are in the resulting relationship.
 * @param successorFunction A function giving the direct successors of any node.
 * @param <N> The node type of the graph.
 */
public static <N> SetMultimap<N, N> projectARG(final N root,
        final Function<? super N, ? extends Iterable<N>> successorFunction, Predicate<? super N> isRelevant) {

    isRelevant = Predicates.or(Predicates.equalTo(root), isRelevant);

    SetMultimap<N, N> successors = HashMultimap.create();

    // Our state is a stack of pairs of todo items.
    // The first item of each pair is a relevant state,
    // for which we are looking for relevant successor states.
    // The second item is a state,
    // whose children should be handled next.
    Deque<Pair<N, N>> todo = new ArrayDeque<>();
    Set<N> visited = new HashSet<>();
    todo.push(Pair.of(root, root));

    while (!todo.isEmpty()) {
        final Pair<N, N> currentPair = todo.pop();
        final N currentPredecessor = currentPair.getFirst();
        final N currentState = currentPair.getSecond();

        if (!visited.add(currentState)) {
            continue;
        }

        for (N child : successorFunction.apply(currentState)) {
            if (isRelevant.apply(child)) {
                successors.put(currentPredecessor, child);

                todo.push(Pair.of(child, child));

            } else {
                todo.push(Pair.of(currentPredecessor, child));
            }
        }
    }

    return successors;
}

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From source file:io.github.fsm.services.impl.TransitionServiceImpl.java

public TransitionServiceImpl() {
    transitionDetails = HashMultimap.create();
}

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From source file:com.synflow.cx.ui.internal.views.fsm.layout.EdgeLayout.java

private void layoutDoubleEdges(List<State> states) {
    for (State state : states) {
        Multimap<State, Transition> map = HashMultimap.create();
        for (Edge edge : state.getOutgoing()) {
            map.put((State) edge.getTarget(), (Transition) edge);
        }//from   ww  w .j av a  2  s.  c om

        for (State target : map.keySet()) {
            Collection<Transition> transitions = map.get(target);
            if (transitions.size() >= 2) {
                Point l1 = state.get("location");
                Point l2 = target.get("location");

                int inc = BREADTH / (transitions.size() - 1);
                int x = (l1.x + l2.x) / 2 - BREADTH / 2 + 15;
                final int y = (l1.y + l2.y + 20) / 2;

                for (Transition transition : transitions) {
                    List<Bendpoint> bendpoints = new ArrayList<>();
                    AbsoluteBendpoint bp;
                    bp = new AbsoluteBendpoint(x, y - 5);
                    bendpoints.add(bp);

                    bp = new AbsoluteBendpoint(x, y + 5);
                    bendpoints.add(bp);

                    setBendpoints(transition, bendpoints);
                    x += inc;
                }
            }
        }
    }
}

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From source file:io.crate.sql.tree.Literal.java

public static Literal fromObject(Object value) {
    Literal literal = null;//from www . j  ava2s .com
    if (value == null) {
        literal = NullLiteral.INSTANCE;
    } else if (value instanceof String) {
        literal = new StringLiteral((String) value);
    } else if (value instanceof Number) {
        if (value instanceof Float || value instanceof Double) {
            literal = new DoubleLiteral(value.toString());
        } else if (value instanceof Short || value instanceof Integer || value instanceof Long) {
            literal = new LongLiteral(value.toString());
        }
    } else if (value instanceof Boolean) {
        literal = (Boolean) value ? BooleanLiteral.TRUE_LITERAL : BooleanLiteral.FALSE_LITERAL;
    } else if (value instanceof Object[]) {
        List<Expression> expressions = new ArrayList<>();
        for (Object o : (Object[]) value) {
            expressions.add(fromObject(o));
        }
        literal = new ArrayLiteral(expressions);
    } else if (value instanceof Map) {
        Multimap<String, Expression> map = HashMultimap.create();
        @SuppressWarnings("unchecked")
        Map<String, Object> valueMap = (Map<String, Object>) value;
        for (Map.Entry<String, Object> entry : valueMap.entrySet()) {
            map.put(entry.getKey(), fromObject(entry.getValue()));
        }
        literal = new ObjectLiteral(map);
    }
    return literal;
}

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From source file:me.lucko.luckperms.common.storage.backing.utils.NodeDataHolder.java

public static NodeDataHolder of(String permission, boolean value, String server, String world, long expiry,
        String contexts) {/*from   ww w.j  a va 2s . c  o m*/
    Map<String, Collection<String>> deserializedContexts = GSON.fromJson(contexts, CONTEXT_TYPE);
    Multimap<String, String> map = HashMultimap.create();
    for (Map.Entry<String, Collection<String>> e : deserializedContexts.entrySet()) {
        map.putAll(e.getKey(), e.getValue());
    }

    return new NodeDataHolder(permission, value, server, world, expiry, map);
}

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From source file:org.apache.samza.execution.OperatorSpecGraphAnalyzer.java

/**
 * Returns a grouping of {@link InputOperatorSpec}s by the joins, i.e. {@link JoinOperatorSpec}s and
 * {@link StreamTableJoinOperatorSpec}s, they participate in.
 *
 * The key of the returned Multimap is of type {@link OperatorSpec} due to the lack of a stricter
 * base type for {@link JoinOperatorSpec} and {@link StreamTableJoinOperatorSpec}. However, key
 * objects are guaranteed to be of either type only.
 *//*w  w  w  .  j ava  2s.  c  o  m*/
public static Multimap<OperatorSpec, InputOperatorSpec> getJoinToInputOperatorSpecs(
        Collection<InputOperatorSpec> inputOpSpecs) {

    Multimap<OperatorSpec, InputOperatorSpec> joinToInputOpSpecs = HashMultimap.create();

    // Create a getNextOpSpecs() function that emulates connections between every SendToTableOperatorSpec
    //  which are terminal OperatorSpecs  and all StreamTableJoinOperatorSpecs referencing the same table.
    //
    // This is necessary to support Stream-Table Join scenarios because it allows us to associate streams behind
    // SendToTableOperatorSpecs with streams participating in Stream-Table Joins, a connection that would not be
    // easy to make otherwise since SendToTableOperatorSpecs are terminal operator specs.
    Function<OperatorSpec, Iterable<OperatorSpec>> getNextOpSpecs = getCustomGetNextOpSpecs(inputOpSpecs);

    // Traverse graph starting from every input operator spec, observing connectivity between input operator specs
    // and join-related operator specs.
    for (InputOperatorSpec inputOpSpec : inputOpSpecs) {
        // Observe all join-related operator specs reachable from this input operator spec.
        JoinVisitor joinVisitor = new JoinVisitor();
        traverse(inputOpSpec, joinVisitor, getNextOpSpecs);

        // Associate every encountered join-related operator spec with this input operator spec.
        for (OperatorSpec joinOpSpec : joinVisitor.getJoins()) {
            joinToInputOpSpecs.put(joinOpSpec, inputOpSpec);
        }
    }

    return joinToInputOpSpecs;
}

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From source file:baggage.SetBag.java

@Override
protected Multimap<K, V> makeEmptyMap() {
    return HashMultimap.create();
}

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From source file:org.eclipse.sirius.diagram.ui.tools.internal.graphical.edit.policies.ChangeBoundRequestRecorder.java

/**
 * Start to record the ChangeBoundRequests.
 */
public void startRecording() {
    recording = true;
    allRequests = HashMultimap.create();
}

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From source file:com.android.tools.perflib.heap.memoryanalyzer.DuplicatedStringsAnalyzerTask.java

@Override
List<AnalysisResultEntry> analyze(@NonNull Configuration configuration, @NonNull Snapshot snapshot) {
    List<AnalysisResultEntry> results = new ArrayList<AnalysisResultEntry>();

    HashMultimap<String, ClassInstance> stringIndex = HashMultimap.create();
    ClassObj stringClass = snapshot.findClass("java.lang.String");
    if (stringClass == null) {
        return Collections.emptyList();
    }//from ww  w .  jav a 2 s  . c  o m

    for (Heap heap : configuration.mHeaps) {
        List<Instance> instances = stringClass.getHeapInstances(heap.getId());

        for (Instance instance : instances) {
            assert instance instanceof ClassInstance;
            ClassInstance stringInstance = (ClassInstance) instance;
            if (stringInstance.getDistanceToGcRoot() != Integer.MAX_VALUE) {
                char[] characters = stringInstance.getStringChars();
                if (characters != null) {
                    String string = new String(characters);
                    stringIndex.put(string, stringInstance);
                }
            }
        }
    }

    for (String key : stringIndex.keySet()) {
        Set<ClassInstance> classInstanceSet = stringIndex.get(key);
        if (classInstanceSet.size() > 1) {
            results.add(new DuplicatedStringsEntry(key, new ArrayList<Instance>(classInstanceSet)));
        }
    }

    return results;
}

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From source file:com.github.naios.wide.framework.internal.storage.server.builder.SQLBuilderImpl.java

private static Multimap<ServerStorageStructure, SQLUpdateInfo> splitUpdateInfo(
        final Collection<SQLUpdateInfo> updates) {
    final Multimap<ServerStorageStructure, SQLUpdateInfo> map = HashMultimap.create();
    updates.forEach(update -> map.put(MappingBeans.getStructure(update.getProperty()), update));
    return map;//from w w w  .  j ava2  s .c o m
}

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