Java HashMap类代码示例

import io.vavr.collection.HashMap; //导入依赖的package包/类
public static Map<Phase, Vector<Patch>> diff(Option<VNode> a, Option<VNode> b) {
    if (!a.isEmpty() && b.isEmpty()) {
        LOG.error("Tried to remove root node");
        return HashMap.empty();
    }

    final Map<Phase, Vector<Patch>> patches;
    if (a.isEmpty()) {
        patches = b.isEmpty() ? HashMap.empty() : HashMap.of(Phase.STRUCTURE, Vector.of(new UpdateRootPatch(b.get())));
    } else {
        patches = doDiff(Vector.empty(), a.get(), b.get());
    }

    LOG.trace("Diff:\na:\n{}\nb:\n{}\nresult:\n{}", a, b, patches);
    return patches;
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
private static Map<Phase, Vector<Patch>> diffAttributes(Vector<Object> path, VNode a, VNode b) {
    final Map<String, VProperty> removedProperties = a.getProperties().removeAll(b.getProperties().keySet()).map((key, value) -> Tuple.of(key, Factory.property(value.getPhase(), key)));
    final Map<String, VProperty> updatedProperties = b.getProperties().filter(propertyB -> !Option.of(propertyB._2).equals(a.getProperties().get(propertyB._1)));

    final Map<VEventType, Option<VEventHandler>> removedEventHandlers = a.getEventHandlers().removeAll(b.getEventHandlers().keySet()).map((key, value) -> Tuple.of(key, Option.none()));
    final Map<VEventType, Option<VEventHandler>> updatedEventHandlers = b.getEventHandlers().filter(handlerB -> !Objects.equals(Option.of(handlerB._2), a.getEventHandlers().get(handlerB._1))).map((key, value) -> Tuple.of(key, Option.of(value)));
    final Map<VEventType, Option<VEventHandler>> diffEventHandlers = removedEventHandlers.merge(updatedEventHandlers);

    return removedProperties.merge(updatedProperties)
            .groupBy(tuple -> tuple._2.getPhase())
            .map((phase, properties) ->
                    Tuple.of(phase, Vector.of(
                            new AttributesPatch(
                                    path,
                                    properties,
                                    phase == Phase.DEFAULT ? diffEventHandlers : HashMap.empty()
                            )
                    ))
            );
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
public DC(final String name, final int httpPort, Map<String,Integer> remotes) {
    this.name = name;
    config = ConfigFactory.parseMap(HashMap.<String,Object>
        of("clustering.port", clusteringPort)
        .put("clustering.seed-port", clusteringPort)
        .put("ts-reaktive.replication.local-datacenter.name", name)
        .put("ts-reaktive.replication.local-datacenter.host", "localhost")
        .put("ts-reaktive.replication.local-datacenter.port", httpPort)
        .put("ts-reaktive.replication.cassandra.keyspace", "replication_" + name)
        .put("cassandra-journal.port", CassandraLauncher.randomPort())
        .put("clustering.name", name)
        .put("cassandra-journal.keyspace", name) // each datacenter is in its own cassandra keyspace
        .merge(
            HashMap.ofEntries(remotes.map(r -> Tuple.of("ts-reaktive.replication.remote-datacenters." + r._1 + ".url", "ws://localhost:" + r._2)))
        )
        .toJavaMap()
        ).withFallback(ConfigFactory.parseResources("com/tradeshift/reaktive/replication/ReplicationIntegrationSpec.conf")).withFallback(ConfigFactory.defaultReference()).resolve();
    
    system = ActorSystem.create(config.getString("clustering.name"), config);
    shardRegion = ReplicatedTestActor.sharding.shardRegion(system);
    
    new AkkaPersistence(system).awaitPersistenceInit();
    
    try {
        System.out.println("*** AWAITING");
        Replication.get(system).start(TestEvent.class, shardRegion).toCompletableFuture().get(30, TimeUnit.SECONDS);
        System.out.println("*** DONE");
    } catch (InterruptedException | ExecutionException | TimeoutException e) {
        throw new RuntimeException(e);
    }
    
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
public SharedActorSystemSpec() {
    super(ConfigFactory.parseMap(HashMap
        .of("ts-reaktive.replication.local-datacenter.name","local")
        .put("ts-reaktive.replication.event-classifiers.\"com.tradeshift.reaktive.replication.TestData$TestEvent\"", TestEventClassifier.class.getName())
        .toJavaMap()
    ));
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
private Map<QName,XSParticle> getValidSubTags(XSElementDeclaration elmt) {
    if (!(elmt.getTypeDefinition() instanceof XSComplexTypeDefinition)) {
        return HashMap.empty();
    }
    
    XSComplexTypeDefinition type = (XSComplexTypeDefinition) elmt.getTypeDefinition();
    if (type.getParticle() == null || !(type.getParticle().getTerm() instanceof XSModelGroup)) {
        return HashMap.empty();
    }
    
    XSModelGroup group = (XSModelGroup) type.getParticle().getTerm();
    if (group.getCompositor() != XSModelGroup.COMPOSITOR_SEQUENCE && group.getCompositor() != XSModelGroup.COMPOSITOR_CHOICE) {
        return HashMap.empty();
    }
    
    // We don't care whether it's SEQUENCE or CHOICE, we only want to know what are the valid sub-elements at this level.
    XSObjectList particles = group.getParticles();
    Map<QName,XSParticle> content = HashMap.empty();
    for (int j = 0; j < particles.getLength(); j++) {
        XSParticle sub = (XSParticle) particles.get(j);
        if (sub.getTerm() instanceof XSElementDeclaration) {
            XSElementDeclaration term = (XSElementDeclaration) sub.getTerm();
            content = content.put(new QName(term.getNamespace(), term.getName()), sub);
        }
    }
    return content;
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
public static AppState create() {
	return new AppState(Project.create(),
		HashMap.ofEntries(
			Tuple.of(TextFieldID.SPRINT_TITLE, ""),
			Tuple.of(TextFieldID.STORY_TITLE, "")
		)
	);
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
private static Map<Phase, Vector<Patch>> diffSingleChildMaps(Vector<Object> path, VNode oldNode, VNode newNode) {

        final Map<String, Option<VNode>> oldChildren = oldNode.getSingleChildMap();
        final Map<String, Option<VNode>> newChildren = newNode.getSingleChildMap();

        final Map<Phase, Vector<Patch>> updatedChildren = oldChildren
                .filter(oldChild -> newChildren.containsKey(oldChild._1))
                .map(oldChild -> Tuple.of(oldChild._1, oldChild._2, newChildren.get(oldChild._1).get()))
                .map(tuple -> {
                    final String key = tuple._1;
                    final Option<VNode> oldValue = tuple._2;
                    final Option<VNode> newValue = tuple._3;

                    if (oldValue.isEmpty() && newValue.isEmpty()) {
                        return HashMap.<Phase, Vector<Patch>>empty();
                    }
                    if (newValue.isEmpty()) {
                        return HashMap.of(Phase.STRUCTURE, Vector.<Patch>of(new SetSingleChildPatch(path, key, Option.none())));
                    }
                    if (oldValue.isEmpty() || !oldValue.get().getNodeClass().equals(newValue.get().getNodeClass())) {
                        return HashMap.of(Phase.STRUCTURE, Vector.<Patch>of(new SetSingleChildPatch(path, key, newValue)));
                    }
                    return doDiff(path.append(key), oldValue.get(), newValue.get());
                })
                .fold(HashMap.empty(), (map1, map2) -> map1.merge(map2, Vector::appendAll));
        final Seq<Patch> removedChildren = oldChildren.removeAll(newChildren.keySet())
                .map(tuple -> new SetSingleChildPatch(path, tuple._1, Option.none()));
        final Seq<Patch> addedChildren = newChildren.removeAll(oldChildren.keySet())
                .map(tuple -> new SetSingleChildPatch(path, tuple._1, tuple._2));
        return updatedChildren
                .merge(HashMap.of(Phase.STRUCTURE, removedChildren.toVector()), Vector::appendAll)
                .merge(HashMap.of(Phase.STRUCTURE, addedChildren.toVector()), Vector::appendAll);
    }
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
@SuppressWarnings("unchecked")
public static <B extends VNode> B node(Object typeKey, Supplier<B> factory) {
    return (B) nodeCache.get(
            Tuple.of(typeKey, HashMap.empty(), HashMap.empty(), HashMap.empty(), HashMap.empty()),
            tuple -> factory.get()
    );
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
@Test
public void testExportsRateLimiterMetrics() {
    // Given
    final CollectorRegistry registry = new CollectorRegistry();

    final RateLimiter rateLimiter = RateLimiter.ofDefaults("foo");

    RateLimiterExports.ofIterable("boo_rate_limiter", singletonList(rateLimiter)).register(registry);

    final Supplier<Map<String, Double>> values = () -> HashSet
            .of("available_permissions", "waiting_threads")
            .map(param ->
                    Tuple.of(param, registry.getSampleValue(
                            "boo_rate_limiter",
                            new String[]{"name", "param"},
                            new String[]{"foo", param})))
            .toMap(t -> t);

    // When

    final Map<String, Double> initialValues = values.get();

    // Then

    assertThat(initialValues).isEqualTo(HashMap.of(
            "available_permissions", 50.0,
            "waiting_threads", 0.0
    ));
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
@Test
public void test1() throws IOException {
    Map<Object, Object> vavrObject = emptyMap().put("1", 2);
    java.util.Map<Object, Object> javaObject = new java.util.HashMap<>();
    javaObject.put("1", 2);

    String json = mapper().writer().writeValueAsString(vavrObject);
    Assert.assertEquals(genJsonMap(javaObject), json);

    Map<?, ?> restored = (Map<?, ?>) mapper().readValue(json, clz());
    Assert.assertEquals(restored, vavrObject);
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
@Test
public void testWithOption() throws Exception {
    verifySerialization(typeReferenceWithOption(), List.of(
            Tuple.of(emptyMap().put("1", Option.some(1)), genJsonMap(HashMap.of("1", 1).toJavaMap())),
            Tuple.of(emptyMap().put("1", Option.none()), genJsonMap(HashMap.of("1", null).toJavaMap()))
    ));
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
public void testJaxbXmlSerialization() throws IOException {
    java.util.Map<String, String> javaInit = new java.util.HashMap<>();
    javaInit.put("key1", "1");
    javaInit.put("key2", "2");
    Map<String, String> slangInit = this.<String, String>emptyMap().put("key1", "1").put("key2", "2");
    ObjectMapper mapper = xmlMapperJaxb();
    String javaJson = mapper.writeValueAsString(new JaxbXmlSerializeJavaUtil().init(javaInit));
    String slangJson = mapper.writeValueAsString(new JaxbXmlSerializeVavr().init(slangInit));
    Assert.assertEquals(javaJson, slangJson);
    JaxbXmlSerializeVavr restored = mapper.readValue(slangJson, JaxbXmlSerializeVavr.class);
    Assert.assertEquals(restored.transitTypes.get("key1").get(), "1");
    Assert.assertEquals(restored.transitTypes.get("key2").get(), "2");
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
public void testXmlSerialization() throws IOException {
    java.util.Map<String, String> javaInit = new java.util.HashMap<>();
    javaInit.put("key1", "1");
    javaInit.put("key2", "2");
    Map<String, String> slangInit = this.<String, String>emptyMap().put("key1", "1").put("key2", "2");
    ObjectMapper mapper = xmlMapper();
    String javaJson = mapper.writeValueAsString(new XmlSerializeJavaUtil().init(javaInit));
    String slangJson = mapper.writeValueAsString(new XmlSerializeVavr().init(slangInit));
    Assert.assertEquals(javaJson, slangJson);
    XmlSerializeVavr restored = mapper.readValue(slangJson, XmlSerializeVavr.class);
    Assert.assertEquals(restored.transitTypes.get("key1").get(), "1");
    Assert.assertEquals(restored.transitTypes.get("key2").get(), "2");
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
@Test
public void test1() throws IOException {
    Multimap<Object, Object> vavrObject = emptyMap().put("1", 2).put("2", 3).put("2", 4);
    java.util.Map<Object, List<Object>> javaObject = new java.util.HashMap<>();
    javaObject.put("1", Collections.singletonList(2));
    List<Object> list = new ArrayList<>();
    Collections.addAll(list, 3, 4);
    javaObject.put("2", list);

    String json = mapper().writer().writeValueAsString(vavrObject);
    Assert.assertEquals(genJsonMap(javaObject), json);

    Multimap<?, ?> restored = (Multimap<?, ?>) mapper().readValue(json, clz());
    Assert.assertEquals(restored, vavrObject);
}
 

import io.vavr.collection.HashMap; //导入依赖的package包/类
@Test
public void testWithOption() throws Exception {
    Multimap<String, Option<Integer>> multimap = this.<String, Option<Integer>>emptyMap().put("1", Option.some(1)).put("1", Option.none());
    String json = genJsonMap(HashMap.of("1", asList(1, null)).toJavaMap());

    verifySerialization(typeReferenceWithOption(), io.vavr.collection.List.of(Tuple.of(multimap, json)));
}