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Remove obsolete turn implementations

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This commit is contained in:
Chris Eager
2025-03-19 13:05:21 -05:00
committed by Chris Eager
parent 50e298a4f4
commit 82e21b0c21
24 changed files with 8 additions and 1689 deletions
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37
service/src/main/java/org/whispersystems/textsecuregcm/WhisperServerConfiguration.java
View File

@@ -301,27 +301,6 @@ public class WhisperServerConfiguration extends Configuration {
@JsonProperty
private VirtualThreadConfiguration virtualThread = new VirtualThreadConfiguration(Duration.ofMillis(1));
@Valid
@NotNull
@JsonProperty
private S3ObjectMonitorFactory maxmindCityDatabase;
@Valid
@NotNull
@JsonProperty
private S3ObjectMonitorFactory callingTurnDnsRecords;
@Valid
@NotNull
@JsonProperty
private S3ObjectMonitorFactory callingTurnPerformanceTable;
@Valid
@NotNull
@JsonProperty
private S3ObjectMonitorFactory callingTurnManualTable;
@Valid
@NotNull
@JsonProperty
@@ -539,22 +518,6 @@ public class WhisperServerConfiguration extends Configuration {
return virtualThread;
}
public S3ObjectMonitorFactory getMaxmindCityDatabase() {
return maxmindCityDatabase;
}
public S3ObjectMonitorFactory getCallingTurnDnsRecords() {
return callingTurnDnsRecords;
}
public S3ObjectMonitorFactory getCallingTurnPerformanceTable() {
return callingTurnPerformanceTable;
}
public S3ObjectMonitorFactory getCallingTurnManualTable() {
return callingTurnManualTable;
}
public NoiseWebSocketTunnelConfiguration getNoiseWebSocketTunnelConfiguration() {
return noiseTunnel;
}

2
service/src/main/java/org/whispersystems/textsecuregcm/WhisperServerService.java
View File

@@ -85,7 +85,6 @@ import org.whispersystems.textsecuregcm.auth.ExternalServiceCredentialsGenerator
import org.whispersystems.textsecuregcm.auth.IdlePrimaryDeviceAuthenticatedWebSocketUpgradeFilter;
import org.whispersystems.textsecuregcm.auth.PhoneVerificationTokenManager;
import org.whispersystems.textsecuregcm.auth.RegistrationLockVerificationManager;
import org.whispersystems.textsecuregcm.auth.TurnTokenGenerator;
import org.whispersystems.textsecuregcm.auth.WebsocketRefreshApplicationEventListener;
import org.whispersystems.textsecuregcm.auth.grpc.ProhibitAuthenticationInterceptor;
import org.whispersystems.textsecuregcm.auth.grpc.RequireAuthenticationInterceptor;
@@ -667,7 +666,6 @@ public class WhisperServerService extends Application<WhisperServerConfiguration
final MessageSender messageSender = new MessageSender(messagesManager, pushNotificationManager);
final ReceiptSender receiptSender = new ReceiptSender(accountsManager, messageSender, receiptSenderExecutor);
final TurnTokenGenerator turnTokenGenerator = new TurnTokenGenerator(config.getTurnConfiguration().secret().value());
final CloudflareTurnCredentialsManager cloudflareTurnCredentialsManager = new CloudflareTurnCredentialsManager(
config.getTurnConfiguration().cloudflare().apiToken().value(),
config.getTurnConfiguration().cloudflare().endpoint(),

8
service/src/main/java/org/whispersystems/textsecuregcm/auth/CloudflareTurnCredentialsManager.java
View File

@@ -15,8 +15,8 @@ import java.net.Inet6Address;
import java.net.URI;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.CompletionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ScheduledExecutorService;
@@ -127,11 +127,11 @@ public class CloudflareTurnCredentialsManager {
final CloudflareTurnResponse cloudflareTurnResponse = SystemMapper.jsonMapper()
.readValue(response.body(), CloudflareTurnResponse.class);
return TurnTokenGenerator.from(
return new TurnToken(
cloudflareTurnResponse.iceServers().username(),
cloudflareTurnResponse.iceServers().credential(),
Optional.ofNullable(cloudflareTurnUrls),
Optional.ofNullable(cloudflareTurnComposedUrls),
cloudflareTurnUrls == null ? Collections.emptyList() : cloudflareTurnUrls,
cloudflareTurnComposedUrls,
cloudflareTurnHostname
);
}

87
service/src/main/java/org/whispersystems/textsecuregcm/auth/TurnTokenGenerator.java
View File

@@ -1,87 +0,0 @@
/*
* Copyright 2013-2020 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.auth;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.time.Duration;
import java.time.Instant;
import java.util.Base64;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import org.whispersystems.textsecuregcm.calls.routing.TurnServerOptions;
import org.whispersystems.textsecuregcm.util.Util;
public class TurnTokenGenerator {
private final byte[] turnSecret;
private static final String ALGORITHM = "HmacSHA1";
private static final String WithUrlsProtocol = "00";
private static final String WithIpsProtocol = "01";
public TurnTokenGenerator(final byte[] turnSecret) {
this.turnSecret = turnSecret;
}
public TurnToken generateWithTurnServerOptions(TurnServerOptions options) {
return generateToken(options.hostname(), options.urlsWithIps(), options.urlsWithHostname());
}
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
private TurnToken generateToken(
String hostname,
Optional<List<String>> urlsWithIps,
Optional<List<String>> urlsWithHostname
) {
try {
final Mac mac = Mac.getInstance(ALGORITHM);
final long validUntilSeconds = Instant.now().plus(Duration.ofDays(1)).getEpochSecond();
final long user = Util.ensureNonNegativeInt(new SecureRandom().nextInt());
final String userTime = validUntilSeconds + ":" + user;
final String protocol = urlsWithIps.isEmpty() || urlsWithIps.get().isEmpty()
? WithUrlsProtocol
: WithIpsProtocol;
final String protocolUserTime = userTime + "#" + protocol;
mac.init(new SecretKeySpec(turnSecret, ALGORITHM));
final String password = Base64.getEncoder().encodeToString(mac.doFinal(protocolUserTime.getBytes()));
return from(
protocolUserTime,
password,
urlsWithHostname,
urlsWithIps,
hostname
);
} catch (final NoSuchAlgorithmException | InvalidKeyException e) {
throw new AssertionError(e);
}
}
@SuppressWarnings("OptionalUsedAsFieldOrParameterType")
public static TurnToken from(
String username,
String password,
Optional<List<String>> urls,
Optional<List<String>> urlsWithIps,
String hostname
) {
return new TurnToken(
username,
password,
urls.orElse(Collections.emptyList()),
urlsWithIps.orElse(Collections.emptyList()),
hostname
);
}
}

74
service/src/main/java/org/whispersystems/textsecuregcm/calls/routing/DynamicConfigTurnRouter.java
View File

@@ -1,74 +0,0 @@
/*
* Copyright 2024 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.calls.routing;
import org.whispersystems.textsecuregcm.configuration.TurnUriConfiguration;
import org.whispersystems.textsecuregcm.configuration.dynamic.DynamicConfiguration;
import org.whispersystems.textsecuregcm.configuration.dynamic.DynamicTurnConfiguration;
import org.whispersystems.textsecuregcm.storage.DynamicConfigurationManager;
import org.whispersystems.textsecuregcm.util.Pair;
import org.whispersystems.textsecuregcm.util.WeightedRandomSelect;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.Random;
import java.util.UUID;
/** Uses DynamicConfig to help route a turn request */
public class DynamicConfigTurnRouter {
private static final Random rng = new Random();
public static final long RANDOMIZE_RATE_BASIS = 100_000;
private final DynamicConfigurationManager<DynamicConfiguration> dynamicConfigurationManager;
public DynamicConfigTurnRouter(final DynamicConfigurationManager<DynamicConfiguration> dynamicConfigurationManager) {
this.dynamicConfigurationManager = dynamicConfigurationManager;
}
public List<String> targetedUrls(final UUID aci) {
final DynamicTurnConfiguration turnConfig = dynamicConfigurationManager.getConfiguration().getTurnConfiguration();
final Optional<TurnUriConfiguration> enrolled = turnConfig.getUriConfigs().stream()
.filter(config -> config.getEnrolledAcis().contains(aci))
.findFirst();
return enrolled
.map(turnUriConfiguration -> turnUriConfiguration.getUris().stream().toList())
.orElse(Collections.emptyList());
}
public List<String> randomUrls() {
final DynamicTurnConfiguration turnConfig = dynamicConfigurationManager.getConfiguration().getTurnConfiguration();
// select from turn server sets by weighted choice
return WeightedRandomSelect.select(turnConfig
.getUriConfigs()
.stream()
.map(c -> new Pair<>(c.getUris(), c.getWeight())).toList());
}
public String getHostname() {
final DynamicTurnConfiguration turnConfig = dynamicConfigurationManager.getConfiguration().getTurnConfiguration();
return turnConfig.getHostname();
}
public long getRandomizeRate() {
final DynamicTurnConfiguration turnConfig = dynamicConfigurationManager.getConfiguration().getTurnConfiguration();
return turnConfig.getRandomizeRate();
}
public int getDefaultInstanceIpCount() {
final DynamicTurnConfiguration turnConfig = dynamicConfigurationManager.getConfiguration().getTurnConfiguration();
return turnConfig.getDefaultInstanceIpCount();
}
public boolean shouldRandomize() {
long rate = getRandomizeRate();
return rate >= RANDOMIZE_RATE_BASIS || rng.nextLong(0, DynamicConfigTurnRouter.RANDOMIZE_RATE_BASIS) < rate;
}
}

190
service/src/main/java/org/whispersystems/textsecuregcm/calls/routing/TurnCallRouter.java
View File

@@ -1,190 +0,0 @@
/*
* Copyright 2023 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.calls.routing;
import com.maxmind.geoip2.DatabaseReader;
import com.maxmind.geoip2.exception.GeoIp2Exception;
import com.maxmind.geoip2.model.CityResponse;
import org.apache.commons.lang3.tuple.Triple;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.whispersystems.textsecuregcm.util.Util;
import javax.annotation.Nonnull;
import java.io.IOException;
import java.net.InetAddress;
import java.util.*;
import java.util.function.Supplier;
import java.util.stream.IntStream;
import java.util.stream.Stream;
/**
* Returns routes based on performance tables, manually routing tables, and target routing. Falls back to a random Turn
* instance that the server knows about.
*/
public class TurnCallRouter {
private final Logger logger = LoggerFactory.getLogger(TurnCallRouter.class);
private final Supplier<CallDnsRecords> callDnsRecords;
private final Supplier<CallRoutingTable> performanceRouting;
private final Supplier<CallRoutingTable> manualRouting;
private final DynamicConfigTurnRouter configTurnRouter;
private final Supplier<DatabaseReader> geoIp;
// controls whether instance IPs are shuffled. using if & boolean is ~5x faster than a function pointer
private final boolean stableSelect;
public TurnCallRouter(
@Nonnull Supplier<CallDnsRecords> callDnsRecords,
@Nonnull Supplier<CallRoutingTable> performanceRouting,
@Nonnull Supplier<CallRoutingTable> manualRouting,
@Nonnull DynamicConfigTurnRouter configTurnRouter,
@Nonnull Supplier<DatabaseReader> geoIp,
boolean stableSelect
) {
this.performanceRouting = performanceRouting;
this.callDnsRecords = callDnsRecords;
this.manualRouting = manualRouting;
this.configTurnRouter = configTurnRouter;
this.geoIp = geoIp;
this.stableSelect = stableSelect;
}
public TurnServerOptions getRoutingFor(
@Nonnull final UUID aci,
@Nonnull final Optional<InetAddress> clientAddress
) {
return getRoutingFor(aci, clientAddress, this.configTurnRouter.getDefaultInstanceIpCount());
}
/**
* Gets Turn Instance addresses. Returns both the IPv4 and IPv6 addresses. Prefers to match the IP protocol of the
* client address in datacenter selection. Returns 2 instance options of the preferred protocol for every one instance
* of the other.
* @param aci aci of client
* @param clientAddress IP address to base routing on
* @param instanceLimit max instances to return options for
* @return Up to two * instanceLimit options, half in ipv4, half in ipv6
*/
public TurnServerOptions getRoutingFor(
@Nonnull final UUID aci,
@Nonnull final Optional<InetAddress> clientAddress,
final int instanceLimit
) {
try {
return getRoutingForInner(aci, clientAddress, instanceLimit);
} catch(Exception e) {
logger.error("Failed to perform routing", e);
return new TurnServerOptions(this.configTurnRouter.getHostname(), null, Optional.of(this.configTurnRouter.randomUrls()));
}
}
TurnServerOptions getRoutingForInner(
@Nonnull final UUID aci,
@Nonnull final Optional<InetAddress> clientAddress,
final int instanceLimit
) {
String hostname = this.configTurnRouter.getHostname();
List<String> targetedUrls = this.configTurnRouter.targetedUrls(aci);
if(!targetedUrls.isEmpty()) {
return new TurnServerOptions(hostname, Optional.empty(), Optional.ofNullable(targetedUrls));
}
if(clientAddress.isEmpty() || this.configTurnRouter.shouldRandomize() || instanceLimit < 1) {
return new TurnServerOptions(hostname, Optional.empty(), Optional.ofNullable(this.configTurnRouter.randomUrls()));
}
CityResponse geoInfo;
try {
geoInfo = geoIp.get().city(clientAddress.get());
} catch (IOException | GeoIp2Exception e) {
throw new RuntimeException(e);
}
Optional<String> subdivision = !geoInfo.getSubdivisions().isEmpty()
? Optional.of(geoInfo.getSubdivisions().getFirst().getIsoCode())
: Optional.empty();
List<String> datacenters = this.manualRouting.get().getDatacentersFor(
clientAddress.get(),
geoInfo.getContinent().getCode(),
geoInfo.getCountry().getIsoCode(),
subdivision
);
if (datacenters.isEmpty()){
datacenters = this.performanceRouting.get().getDatacentersFor(
clientAddress.get(),
geoInfo.getContinent().getCode(),
geoInfo.getCountry().getIsoCode(),
subdivision
);
}
List<String> urlsWithIps = getUrlsForInstances(
selectInstances(
datacenters,
instanceLimit
));
return new TurnServerOptions(hostname, Optional.of(urlsWithIps), Optional.of(minimalRandomUrls()));
}
// Includes only the udp options in the randomUrls
private List<String> minimalRandomUrls(){
return this.configTurnRouter.randomUrls().stream()
.filter(s -> s.startsWith("turn:") && !s.endsWith("transport=tcp"))
.toList();
}
// returns balanced number of instances across provided datacenters, prioritizing the datacenters earlier in the list
private List<String> selectInstances(List<String> datacenters, int instanceLimit) {
if(datacenters.isEmpty() || instanceLimit == 0) {
return Collections.emptyList();
}
CallDnsRecords dnsRecords = this.callDnsRecords.get();
List<List<InetAddress>> ipv4Options = datacenters.stream()
.map(dc -> randomNOf(dnsRecords.aByRegion().get(dc), instanceLimit, stableSelect))
.toList();
List<List<InetAddress>> ipv6Options = datacenters.stream()
.map(dc -> randomNOf(dnsRecords.aaaaByRegion().get(dc), instanceLimit, stableSelect))
.toList();
List<InetAddress> ipv4Selection = selectFromOptions(ipv4Options, instanceLimit);
List<InetAddress> ipv6Selection = selectFromOptions(ipv6Options, instanceLimit);
return Stream.concat(
ipv4Selection.stream().map(InetAddress::getHostAddress),
// map ipv6 to RFC3986 format i.e. surrounded by brackets
ipv6Selection.stream().map(i -> String.format("[%s]", i.getHostAddress()))
).toList();
}
private static List<InetAddress> selectFromOptions(List<List<InetAddress>> recordsByDc, int instanceLimit) {
return IntStream.range(0, recordsByDc.size())
.mapToObj(dcIndex -> IntStream.range(0, recordsByDc.get(dcIndex).size())
.mapToObj(addressIndex -> Triple.of(addressIndex, dcIndex, recordsByDc.get(dcIndex).get(addressIndex))))
.flatMap(i -> i)
.sorted(Comparator.comparingInt((Triple<Integer, Integer, InetAddress> t) -> t.getLeft())
.thenComparingInt(Triple::getMiddle))
.limit(instanceLimit)
.sorted(Comparator.comparingInt(Triple::getMiddle))
.map(Triple::getRight)
.toList();
}
private static <E> List<E> randomNOf(List<E> values, int n, boolean stableSelect) {
return stableSelect ? Util.randomNOfStable(values, n) : Util.randomNOfShuffled(values, n);
}
private static List<String> getUrlsForInstances(List<String> instanceIps) {
return instanceIps.stream().flatMap(ip -> Stream.of(
String.format("turn:%s", ip),
String.format("turn:%s:80?transport=tcp", ip),
String.format("turns:%s:443?transport=tcp", ip)
)
).toList();
}
}

5
service/src/main/java/org/whispersystems/textsecuregcm/configuration/CloudflareTurnConfiguration.java
View File

@@ -7,6 +7,7 @@ package org.whispersystems.textsecuregcm.configuration;
import jakarta.validation.Valid;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotEmpty;
import jakarta.validation.constraints.NotNull;
import java.util.List;
import jakarta.validation.constraints.Positive;
@@ -15,8 +16,8 @@ import org.whispersystems.textsecuregcm.configuration.secrets.SecretString;
public record CloudflareTurnConfiguration(@NotNull SecretString apiToken,
@NotBlank String endpoint,
@NotBlank long ttl,
@NotBlank List<String> urls,
@NotBlank List<String> urlsWithIps,
@NotNull @NotEmpty @Valid List<@NotBlank String> urls,
@NotNull @NotEmpty @Valid List<@NotBlank String> urlsWithIps,
@NotNull @Valid CircuitBreakerConfiguration circuitBreaker,
@NotNull @Valid RetryConfiguration retry,
@NotBlank String hostname,

4
service/src/main/java/org/whispersystems/textsecuregcm/configuration/TurnConfiguration.java
View File

@@ -5,7 +5,5 @@
package org.whispersystems.textsecuregcm.configuration;
import org.whispersystems.textsecuregcm.configuration.secrets.SecretBytes;
public record TurnConfiguration(SecretBytes secret, CloudflareTurnConfiguration cloudflare) {
public record TurnConfiguration(CloudflareTurnConfiguration cloudflare) {
}

8
service/src/main/java/org/whispersystems/textsecuregcm/configuration/dynamic/DynamicConfiguration.java
View File

@@ -42,10 +42,6 @@ public class DynamicConfiguration {
@Valid
private DynamicCaptchaConfiguration captcha = new DynamicCaptchaConfiguration();
@JsonProperty
@Valid
private DynamicTurnConfiguration turn = new DynamicTurnConfiguration();
@JsonProperty
@Valid
DynamicMessagePersisterConfiguration messagePersister = new DynamicMessagePersisterConfiguration();
@@ -104,10 +100,6 @@ public class DynamicConfiguration {
return captcha;
}
public DynamicTurnConfiguration getTurnConfiguration() {
return turn;
}
public DynamicMessagePersisterConfiguration getMessagePersisterConfiguration() {
return messagePersister;
}

50
service/src/main/java/org/whispersystems/textsecuregcm/configuration/dynamic/DynamicTurnConfiguration.java
View File

@@ -1,50 +0,0 @@
/*
* Copyright 2013-2020 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.configuration.dynamic;
import com.fasterxml.jackson.annotation.JsonProperty;
import jakarta.validation.Valid;
import java.util.Collections;
import java.util.List;
import org.whispersystems.textsecuregcm.configuration.TurnUriConfiguration;
public class DynamicTurnConfiguration {
@JsonProperty
private String hostname;
/**
* Rate at which to prioritize a random turn URL to exercise all endpoints.
* Based on a 100,000 basis, where 100,000 == 100%.
*/
@JsonProperty
private long randomizeRate = 5_000;
/**
* Number of instance ips to return in TURN routing request
*/
@JsonProperty
private int defaultInstanceIpCount = 0;
@JsonProperty
private List<@Valid TurnUriConfiguration> uriConfigs = Collections.emptyList();
public List<TurnUriConfiguration> getUriConfigs() {
return uriConfigs;
}
public long getRandomizeRate() {
return randomizeRate;
}
public int getDefaultInstanceIpCount() {
return defaultInstanceIpCount;
}
public String getHostname() {
return hostname;
}
}

102
service/src/main/java/org/whispersystems/textsecuregcm/geo/MaxMindDatabaseManager.java
View File

@@ -1,102 +0,0 @@
/*
* Copyright 2023 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.whispersystems.textsecuregcm.geo;
import com.maxmind.db.CHMCache;
import com.maxmind.geoip2.DatabaseReader;
import io.dropwizard.lifecycle.Managed;
import io.micrometer.core.instrument.Metrics;
import io.micrometer.core.instrument.Timer;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Supplier;
import org.apache.commons.compress.archivers.ArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.whispersystems.textsecuregcm.configuration.S3ObjectMonitorFactory;
import org.whispersystems.textsecuregcm.metrics.MetricsUtil;
import org.whispersystems.textsecuregcm.s3.S3ObjectMonitor;
import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider;
public class MaxMindDatabaseManager implements Supplier<DatabaseReader>, Managed {
private final S3ObjectMonitor databaseMonitor;
private final AtomicReference<DatabaseReader> databaseReader = new AtomicReference<>();
private final String databaseTag;
private final Timer refreshTimer;
private static final Logger log = LoggerFactory.getLogger(MaxMindDatabaseManager.class);
public MaxMindDatabaseManager(final ScheduledExecutorService executorService,
final AwsCredentialsProvider awsCredentialsProvider, final S3ObjectMonitorFactory configuration,
final String databaseTag) {
this.databaseMonitor = configuration.build(awsCredentialsProvider, executorService);
this.databaseTag = databaseTag;
this.refreshTimer = Metrics.timer(MetricsUtil.name(MaxMindDatabaseManager.class, "refresh"), "db", databaseTag);
}
private void handleDatabaseChanged(final InputStream inputStream) {
refreshTimer.record(() -> {
boolean foundDatabaseEntry = false;
try (final InputStream bufferedInputStream = new BufferedInputStream(inputStream);
final GzipCompressorInputStream gzipInputStream = new GzipCompressorInputStream(bufferedInputStream);
final TarArchiveInputStream tarInputStream = new TarArchiveInputStream(gzipInputStream)) {
ArchiveEntry nextEntry;
while ((nextEntry = tarInputStream.getNextEntry()) != null) {
if (nextEntry.getName().toLowerCase().endsWith(".mmdb")) {
foundDatabaseEntry = true;
final DatabaseReader oldReader = databaseReader.getAndSet(
new DatabaseReader.Builder(tarInputStream).withCache(new CHMCache()).build()
);
if (oldReader != null) {
oldReader.close();
}
break;
}
}
} catch (final IOException e) {
log.error(String.format("Failed to load MaxMind database, tag %s", databaseTag));
}
if (!foundDatabaseEntry) {
log.warn(String.format("No .mmdb entry loaded from input stream, tag %s", databaseTag));
}
});
}
@Override
public void start() throws Exception {
databaseMonitor.start(this::handleDatabaseChanged);
}
@Override
public void stop() throws Exception {
databaseMonitor.stop();
final DatabaseReader reader = databaseReader.getAndSet(null);
if (reader != null) {
reader.close();
}
}
@Override
public DatabaseReader get() {
return this.databaseReader.get();
}
}