Example usage for java.util Collections emptyMap

List of usage examples for java.util Collections emptyMap

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Introduction

In this page you can find the example usage for java.util Collections emptyMap.

Prototype

@SuppressWarnings("unchecked")
public static final <K, V> Map<K, V> emptyMap()

Source Link

Document

Returns an empty map (immutable).

Usage

From source file:io.crate.operation.auth.HostBasedAuthenticationTest.java

@Test
public void testMissingUserOrAddress() throws Exception {
    authService.updateHbaConfig(Collections.emptyMap());
    AuthenticationMethod method;/*from   w w w . j av  a 2 s.c  om*/
    method = authService.resolveAuthenticationType(null,
            new ConnectionProperties(LOCALHOST, Protocol.POSTGRES, null));
    assertNull(method);
    method = authService.resolveAuthenticationType("crate",
            new ConnectionProperties(null, Protocol.POSTGRES, null));
    assertNull(method);
}

From source file:org.elasticsearch.integration.BulkUpdateTests.java

public void testThatBulkUpdateDoesNotLoseFieldsHttp() throws IOException {
    final String path = "/index1/type/1";
    final Header basicAuthHeader = new BasicHeader("Authorization",
            UsernamePasswordToken.basicAuthHeaderValue(SecuritySettingsSource.TEST_USER_NAME,
                    new SecureString(SecuritySettingsSourceField.TEST_PASSWORD.toCharArray())));

    StringEntity body = new StringEntity("{\"test\":\"test\"}", ContentType.APPLICATION_JSON);
    Response response = getRestClient().performRequest("PUT", path, Collections.emptyMap(), body,
            basicAuthHeader);//from   www.  java2 s.  c om
    assertThat(response.getStatusLine().getStatusCode(), equalTo(201));

    response = getRestClient().performRequest("GET", path, basicAuthHeader);
    assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
    assertThat(EntityUtils.toString(response.getEntity()), containsString("\"test\":\"test\""));

    if (randomBoolean()) {
        flushAndRefresh();
    }

    //update with new field
    body = new StringEntity("{\"doc\": {\"not test\": \"not test\"}}", ContentType.APPLICATION_JSON);
    response = getRestClient().performRequest("POST", path + "/_update", Collections.emptyMap(), body,
            basicAuthHeader);
    assertThat(response.getStatusLine().getStatusCode(), equalTo(200));

    response = getRestClient().performRequest("GET", path, basicAuthHeader);
    assertThat(response.getStatusLine().getStatusCode(), equalTo(200));
    String responseBody = EntityUtils.toString(response.getEntity());
    assertThat(responseBody, containsString("\"test\":\"test\""));
    assertThat(responseBody, containsString("\"not test\":\"not test\""));

    // this part is important. Without this, the document may be read from the translog which would bypass the bug where
    // FLS kicks in because the request can't be found and only returns meta fields
    flushAndRefresh();

    body = new StringEntity("{\"update\": {\"_index\": \"index1\", \"_type\": \"type\", \"_id\": \"1\"}}\n"
            + "{\"doc\": {\"bulk updated\":\"bulk updated\"}}\n", ContentType.APPLICATION_JSON);
    response = getRestClient().performRequest("POST", "/_bulk", Collections.emptyMap(), body, basicAuthHeader);
    assertThat(response.getStatusLine().getStatusCode(), equalTo(200));

    response = getRestClient().performRequest("GET", path, basicAuthHeader);
    responseBody = EntityUtils.toString(response.getEntity());
    assertThat(responseBody, containsString("\"test\":\"test\""));
    assertThat(responseBody, containsString("\"not test\":\"not test\""));
    assertThat(responseBody, containsString("\"bulk updated\":\"bulk updated\""));
}

From source file:fr.ritaly.dungeonmaster.ai.CreatureManager.java

/**
 * Returns the creatures occupying this position as a map.
 *
 * @return a map of creatures per sector. Never returns null.
 *//*w ww .  j  a v  a  2  s  .  co m*/
public final Map<Sector, Creature> getCreatureMap() {
    if (creatures == null) {
        return Collections.emptyMap();
    }

    // Defensive recopy
    return Collections.unmodifiableMap(creatures);
}

From source file:com.hortonworks.streamline.streams.common.StreamlineEventImplTest.java

@Test(expected = UnsupportedOperationException.class)
public void testPutAll() throws Exception {
    Map<String, Object> map = new HashMap<>();
    map.put("foo", "bar");

    StreamlineEvent event = new StreamlineEventImpl(Collections.emptyMap(), StringUtils.EMPTY);
    event.putAll(map);//from   w ww.j a v a 2s. c o  m
}

From source file:org.elasticsearch.upgrades.TokenBackwardsCompatibilityIT.java

public void testMixedCluster() throws Exception {
    assumeTrue("this test should only run against the mixed cluster", clusterType == CLUSTER_TYPE.MIXED);
    assumeTrue("the master must be on the latest version before we can write", isMasterOnLatestVersion());
    Response getResponse = client().performRequest("GET",
            "token_backwards_compatibility_it/doc/old_cluster_token2");
    assertOK(getResponse);/*from   w ww . j a  va 2 s  .c  o  m*/
    Map<String, Object> source = (Map<String, Object>) entityAsMap(getResponse).get("_source");
    final String token = (String) source.get("token");
    assertTokenWorks(token);

    final StringEntity body = new StringEntity("{\"token\": \"" + token + "\"}", ContentType.APPLICATION_JSON);
    Response invalidationResponse = client().performRequest("DELETE", "_xpack/security/oauth2/token",
            Collections.emptyMap(), body);
    assertOK(invalidationResponse);
    assertTokenDoesNotWork(token);

    // create token and refresh on version that supports it
    final StringEntity tokenPostBody = new StringEntity("{\n" + "    \"username\": \"test_user\",\n"
            + "    \"password\": \"x-pack-test-password\",\n" + "    \"grant_type\": \"password\"\n" + "}",
            ContentType.APPLICATION_JSON);
    try (RestClient client = getRestClientForCurrentVersionNodesOnly()) {
        Response response = client.performRequest("POST", "_xpack/security/oauth2/token",
                Collections.emptyMap(), tokenPostBody);
        assertOK(response);
        Map<String, Object> responseMap = entityAsMap(response);
        String accessToken = (String) responseMap.get("access_token");
        String refreshToken = (String) responseMap.get("refresh_token");
        assertNotNull(accessToken);
        assertNotNull(refreshToken);
        assertTokenWorks(accessToken);

        final StringEntity tokenRefresh = new StringEntity("{\n" + "    \"refresh_token\": \"" + refreshToken
                + "\",\n" + "    \"grant_type\": \"refresh_token\"\n" + "}", ContentType.APPLICATION_JSON);
        response = client.performRequest("POST", "_xpack/security/oauth2/token", Collections.emptyMap(),
                tokenRefresh);
        assertOK(response);
        responseMap = entityAsMap(response);
        String updatedAccessToken = (String) responseMap.get("access_token");
        String updatedRefreshToken = (String) responseMap.get("refresh_token");
        assertNotNull(updatedAccessToken);
        assertNotNull(updatedRefreshToken);
        assertTokenWorks(updatedAccessToken);
        assertTokenWorks(accessToken);
        assertNotEquals(accessToken, updatedAccessToken);
        assertNotEquals(refreshToken, updatedRefreshToken);
    }
}

From source file:com.netflix.genie.common.internal.aws.s3.S3ClientFactory.java

/**
 * Constructor.//  ww w  . j av  a  2 s.c o m
 *
 * @param awsCredentialsProvider The base AWS credentials provider to use for the generated S3 clients
 * @param regionProvider         How this factory should determine the default {@link Regions}
 * @param environment            The Spring application {@link Environment}
 */
public S3ClientFactory(final AWSCredentialsProvider awsCredentialsProvider,
        final AwsRegionProvider regionProvider, final Environment environment) {
    this.awsCredentialsProvider = awsCredentialsProvider;

    /*
     * Use the Spring property binder to dynamically map properties under a common root into a map of key to object.
     *
     * In this case we're trying to get bucketName -> BucketProperties
     *
     * So if there were properties like:
     * genie.aws.s3.buckets.someBucket1.roleARN = blah
     * genie.aws.s3.buckets.someBucket2.region = us-east-1
     * genie.aws.s3.buckets.someBucket2.roleARN = blah
     *
     * The result of this should be two entries in the map "bucket1" and "bucket2" mapping to property binding
     * object instances of BucketProperties with the correct property set or null if option wasn't specified.
     */
    this.bucketProperties = Binder.get(environment)
            .bind(BUCKET_PROPERTIES_ROOT_KEY, Bindable.mapOf(String.class, BucketProperties.class))
            .orElse(Collections.emptyMap());

    // Set the initial size to the number of special cases defined in properties + 1 for the default client
    // NOTE: Should we proactively create all necessary clients or be lazy about it? For now, lazy.
    final int initialCapacity = this.bucketProperties.size() + 1;
    this.clientCache = new ConcurrentHashMap<>(initialCapacity);
    this.transferManagerCache = new ConcurrentHashMap<>(initialCapacity);

    String tmpRegion;
    try {
        tmpRegion = regionProvider.getRegion();
    } catch (final SdkClientException e) {
        tmpRegion = Regions.getCurrentRegion() != null ? Regions.getCurrentRegion().getName()
                : Regions.US_EAST_1.getName();
        log.warn("Couldn't determine the AWS region from the provider ({}) supplied. Defaulting to {}",
                regionProvider.toString(), tmpRegion);
    }
    this.defaultRegion = Regions.fromName(tmpRegion);

    // Create a token service client to use if we ever need to assume a role
    // TODO: Perhaps this should be just set to null if the bucket properties are empty as we'll never need it?
    this.stsClient = AWSSecurityTokenServiceClientBuilder.standard().withRegion(this.defaultRegion)
            .withCredentials(this.awsCredentialsProvider).build();

    this.bucketToClientKey = new ConcurrentHashMap<>();
}

From source file:org.thingsboard.server.dao.audit.sink.ElasticsearchAuditLogSink.java

@Override
public void logAction(AuditLog auditLogEntry) {
    String jsonContent = createElasticJsonRecord(auditLogEntry);

    HttpEntity entity = new NStringEntity(jsonContent, ContentType.APPLICATION_JSON);

    restClient.performRequestAsync(HttpMethod.POST.name(),
            String.format("/%s/%s", getIndexName(auditLogEntry.getTenantId()), INDEX_TYPE),
            Collections.emptyMap(), entity, responseListener);
}

From source file:ch.rasc.wampspring.testsupport.BaseWampTest.java

protected void authenticate(CompletableFutureWebSocketHandler result, WebSocketSession webSocketSession)
        throws IOException, InterruptedException, InvalidKeyException, NoSuchAlgorithmException,
        ExecutionException, TimeoutException {
    CallMessage authReqCallMessage = new CallMessage("1", "http://api.wamp.ws/procedure#authreq", "a",
            Collections.emptyMap());
    webSocketSession.sendMessage(new TextMessage(authReqCallMessage.toJson(this.jsonFactory)));
    WampMessage response = result.getWampMessage();

    assertThat(response).isInstanceOf(CallResultMessage.class);
    CallResultMessage resultMessage = (CallResultMessage) response;
    assertThat(resultMessage.getCallID()).isEqualTo("1");
    assertThat(resultMessage.getResult()).isNotNull();

    result.reset();//from   www  .  j  av a2 s .  c  o m

    String challengeBase64 = (String) resultMessage.getResult();
    String signature = DefaultAuthenticationHandler.generateHMacSHA256("secretofa", challengeBase64);

    CallMessage authCallMessage = new CallMessage("2", "http://api.wamp.ws/procedure#auth", signature);
    webSocketSession.sendMessage(new TextMessage(authCallMessage.toJson(this.jsonFactory)));
    response = result.getWampMessage();

    assertThat(response).isInstanceOf(CallResultMessage.class);
    resultMessage = (CallResultMessage) response;
    assertThat(resultMessage.getCallID()).isEqualTo("2");
    assertThat(resultMessage.getResult()).isNull();

    result.reset();
}

From source file:com.sunchenbin.store.feilong.core.lang.ArrayUtil.java

/**
 * Group ./*from  w w  w . j  a  v  a  2 s.  co  m*/
 *
 * @param <O>
 *            the generic type
 * @param <T>
 *            the generic type
 * @param objectArray
 *            
 * @param propertyName
 *            ????
 * @return the map< t, list< o>>
 * @see com.sunchenbin.store.feilong.core.bean.PropertyUtil#getProperty(Object, String)
 * @see com.sunchenbin.store.feilong.core.util.CollectionsUtil#group(java.util.Collection, String)
 * @since 1.0.8
 */
public static <O, T> Map<T, List<O>> group(O[] objectArray, String propertyName) {
    if (null == objectArray) {
        return Collections.emptyMap();
    }

    if (Validator.isNullOrEmpty(propertyName)) {
        throw new NullPointerException("the propertyName is null or empty!");
    }
    //  ??? HashMap TreeMap
    Map<T, List<O>> map = new LinkedHashMap<T, List<O>>(objectArray.length);
    for (O o : objectArray) {
        T t = PropertyUtil.getProperty(o, propertyName);
        List<O> valueList = map.get(t);
        if (null == valueList) {
            valueList = new ArrayList<O>();
        }
        valueList.add(o);
        map.put(t, valueList);
    }
    return map;
}

From source file:com.domingosuarez.boot.autoconfigure.jade4j.Jade4JAutoConfigurationTests.java

@Test
public void shouldRenderPrettyTemplateTemplate() throws Exception {
    EnvironmentTestUtils.addEnvironment(this.context, "spring.jade4j.prettyPrint:true");
    this.context.register(Jade4JAutoConfiguration.class, PropertyPlaceholderAutoConfiguration.class);
    this.context.refresh();
    JadeConfiguration engine = this.context.getBean(JadeConfiguration.class);
    JadeTemplate template = engine.getTemplate("demo.jade");
    Map<String, Object> params = Collections.emptyMap();
    String result = engine.renderTemplate(template, params);
    String expected = "<html>\n" + "  <head>\n" + "    <title>Jade</title>\n" + "  </head>\n" + "  <body>\n"
            + "    <h1>Jade - Template engine</h1>\n" + "  </body>\n" + "</html>";
    assertEquals(expected, result);//from   ww  w.ja v a2 s . co  m
}