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org.graylog2.rest.resources.streams.StreamResource Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog2.rest.resources.streams;
import com.codahale.metrics.annotation.Timed;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.bson.types.ObjectId;
import org.graylog.security.UserContext;
import org.graylog2.alarmcallbacks.AlarmCallbackConfiguration;
import org.graylog2.alarmcallbacks.AlarmCallbackConfigurationService;
import org.graylog2.alerts.AlertService;
import org.graylog2.audit.AuditEventTypes;
import org.graylog2.audit.jersey.AuditEvent;
import org.graylog2.audit.jersey.NoAuditEvent;
import org.graylog2.database.NotFoundException;
import org.graylog2.database.PaginatedList;
import org.graylog2.indexer.IndexSet;
import org.graylog2.indexer.IndexSetRegistry;
import org.graylog2.plugin.Message;
import org.graylog2.plugin.Tools;
import org.graylog2.plugin.alarms.AlertCondition;
import org.graylog2.plugin.configuration.ConfigurationException;
import org.graylog2.plugin.database.ValidationException;
import org.graylog2.plugin.streams.Output;
import org.graylog2.plugin.streams.Stream;
import org.graylog2.plugin.streams.StreamRule;
import org.graylog2.rest.models.alarmcallbacks.requests.AlertReceivers;
import org.graylog2.rest.models.alarmcallbacks.requests.CreateAlarmCallbackRequest;
import org.graylog2.rest.models.streams.alerts.AlertConditionSummary;
import org.graylog2.rest.models.streams.alerts.requests.CreateConditionRequest;
import org.graylog2.rest.models.streams.requests.UpdateStreamRequest;
import org.graylog2.rest.models.system.outputs.responses.OutputSummary;
import org.graylog2.rest.resources.streams.requests.CloneStreamRequest;
import org.graylog2.rest.resources.streams.requests.CreateStreamRequest;
import org.graylog2.rest.resources.streams.responses.StreamListResponse;
import org.graylog2.rest.resources.streams.responses.StreamPageListResponse;
import org.graylog2.rest.resources.streams.responses.StreamResponse;
import org.graylog2.rest.resources.streams.responses.TestMatchResponse;
import org.graylog2.search.SearchQuery;
import org.graylog2.search.SearchQueryField;
import org.graylog2.search.SearchQueryParser;
import org.graylog2.shared.rest.resources.RestResource;
import org.graylog2.shared.security.RestPermissions;
import org.graylog2.streams.PaginatedStreamService;
import org.graylog2.streams.StreamDTO;
import org.graylog2.streams.StreamImpl;
import org.graylog2.streams.StreamRouterEngine;
import org.graylog2.streams.StreamRuleImpl;
import org.graylog2.streams.StreamRuleService;
import org.graylog2.streams.StreamService;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.format.ISODateTimeFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
import javax.validation.Valid;
import javax.validation.constraints.NotEmpty;
import javax.validation.constraints.NotNull;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import static com.google.common.base.MoreObjects.firstNonNull;
import static org.graylog2.shared.rest.documentation.generator.Generator.CLOUD_VISIBLE;
@RequiresAuthentication
@Api(value = "Streams", description = "Manage streams", tags = {CLOUD_VISIBLE})
@Path("/streams")
public class StreamResource extends RestResource {
private static final Logger LOG = LoggerFactory.getLogger(StreamResource.class);
protected static final ImmutableMap SEARCH_FIELD_MAPPING = ImmutableMap.builder()
.put("id", SearchQueryField.create(StreamDTO.FIELD_ID, SearchQueryField.Type.OBJECT_ID))
.put(StreamDTO.FIELD_TITLE, SearchQueryField.create(StreamDTO.FIELD_TITLE))
.put(StreamDTO.FIELD_DESCRIPTION, SearchQueryField.create(StreamDTO.FIELD_DESCRIPTION))
.build();
private final PaginatedStreamService paginatedStreamService;
private final StreamService streamService;
private final StreamRuleService streamRuleService;
private final StreamRouterEngine.Factory streamRouterEngineFactory;
private final IndexSetRegistry indexSetRegistry;
private final AlarmCallbackConfigurationService alarmCallbackConfigurationService;
private final AlertService alertService;
private final SearchQueryParser searchQueryParser;
@Inject
public StreamResource(StreamService streamService,
PaginatedStreamService paginatedStreamService,
StreamRuleService streamRuleService,
StreamRouterEngine.Factory streamRouterEngineFactory,
IndexSetRegistry indexSetRegistry,
AlarmCallbackConfigurationService alarmCallbackConfigurationService,
AlertService alertService) {
this.streamService = streamService;
this.streamRuleService = streamRuleService;
this.streamRouterEngineFactory = streamRouterEngineFactory;
this.indexSetRegistry = indexSetRegistry;
this.alarmCallbackConfigurationService = alarmCallbackConfigurationService;
this.alertService = alertService;
this.paginatedStreamService = paginatedStreamService;
this.searchQueryParser = new SearchQueryParser(StreamImpl.FIELD_TITLE, SEARCH_FIELD_MAPPING);
}
@POST
@Timed
@ApiOperation(value = "Create a stream")
@RequiresPermissions(RestPermissions.STREAMS_CREATE)
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
@AuditEvent(type = AuditEventTypes.STREAM_CREATE)
public Response create(@ApiParam(name = "JSON body", required = true) final CreateStreamRequest cr,
@Context UserContext userContext) throws ValidationException {
// Create stream.
final Stream stream = streamService.create(cr, getCurrentUser().getName());
stream.setDisabled(true);
final IndexSet indexSet = stream.getIndexSet();
if (!indexSet.getConfig().isWritable()) {
throw new BadRequestException("Assigned index set must be writable!");
} else if (!indexSet.getConfig().isRegularIndex()) {
throw new BadRequestException("Assigned index set is not usable");
}
final Set streamRules = cr.rules().stream()
.map(streamRule -> streamRuleService.create(null, streamRule))
.collect(Collectors.toSet());
final String id = streamService.saveWithRulesAndOwnership(stream, streamRules, userContext.getUser());
final Map result = ImmutableMap.of("stream_id", id);
final URI streamUri = getUriBuilderToSelf().path(StreamResource.class)
.path("{streamId}")
.build(id);
return Response.created(streamUri).entity(result).build();
}
@GET
@Timed
@Path("/paginated")
@ApiOperation(value = "Get a paginated list of streams")
@Produces(MediaType.APPLICATION_JSON)
public StreamPageListResponse getPage(@ApiParam(name = "page") @QueryParam("page") @DefaultValue("1") int page,
@ApiParam(name = "per_page") @QueryParam("per_page") @DefaultValue("50") int perPage,
@ApiParam(name = "query") @QueryParam("query") @DefaultValue("") String query,
@ApiParam(name = "sort",
value = "The field to sort the result on",
required = true,
allowableValues = "title,description")
@DefaultValue(StreamImpl.FIELD_TITLE) @QueryParam("sort") String sort,
@ApiParam(name = "order", value = "The sort direction", allowableValues = "asc, desc")
@DefaultValue("asc") @QueryParam("order") String order) {
SearchQuery searchQuery;
try {
searchQuery = searchQueryParser.parse(query);
} catch (IllegalArgumentException e) {
throw new BadRequestException("Invalid argument in search query: " + e.getMessage());
}
final Predicate permissionFilter = streamDTO -> isPermitted(RestPermissions.STREAMS_READ, streamDTO.id());
final PaginatedList result = paginatedStreamService
.findPaginated(searchQuery, permissionFilter, page, perPage, sort, order);
final List streamIds = result.stream().map(streamDTO -> streamDTO.id()).collect(Collectors.toList());
final Map> streamRuleMap = streamRuleService.loadForStreamIds(streamIds);
final List streams = result.stream().map(streamDTO -> {
List rules = streamRuleMap.getOrDefault(streamDTO.id(), Collections.emptyList());
return streamDTO.toBuilder().rules(rules).build();
}).collect(Collectors.toList());
final long total = paginatedStreamService.count();
final PaginatedList streamDTOS = new PaginatedList<>(streams,
result.pagination().total(), result.pagination().page(), result.pagination().perPage());
return StreamPageListResponse.create(query, streamDTOS.pagination(), total, sort, order, streams);
}
@GET
@Timed
@ApiOperation(value = "Get a list of all streams")
@Deprecated
@Produces(MediaType.APPLICATION_JSON)
public StreamListResponse get() {
final List allStreams = streamService.loadAll();
final List streams = new ArrayList<>(allStreams.size());
for (Stream stream : allStreams) {
if (isPermitted(RestPermissions.STREAMS_READ, stream.getId())) {
streams.add(stream);
}
}
return StreamListResponse.create(streams.size(), streams.stream().map(this::streamToResponse).collect(Collectors.toSet()));
}
@GET
@Path("/enabled")
@Timed
@ApiOperation(value = "Get a list of all enabled streams")
@Produces(MediaType.APPLICATION_JSON)
public StreamListResponse getEnabled() throws NotFoundException {
final List enabledStreams = streamService.loadAllEnabled();
final List streams = new ArrayList<>(enabledStreams.size());
for (Stream stream : enabledStreams) {
if (isPermitted(RestPermissions.STREAMS_READ, stream.getId())) {
streams.add(stream);
}
}
return StreamListResponse.create(streams.size(), streams.stream().map(this::streamToResponse).collect(Collectors.toSet()));
}
@GET
@Path("/{streamId}")
@Timed
@ApiOperation(value = "Get a single stream")
@Produces(MediaType.APPLICATION_JSON)
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
public StreamResponse get(@ApiParam(name = "streamId", required = true)
@PathParam("streamId") @NotEmpty String streamId) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_READ, streamId);
return streamToResponse(streamService.load(streamId));
}
@PUT
@Timed
@Path("/{streamId}")
@ApiOperation(value = "Update a stream")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
@AuditEvent(type = AuditEventTypes.STREAM_UPDATE)
public StreamResponse update(@ApiParam(name = "streamId", required = true)
@PathParam("streamId") String streamId,
@ApiParam(name = "JSON body", required = true)
@Valid @NotNull UpdateStreamRequest cr) throws NotFoundException, ValidationException {
checkPermission(RestPermissions.STREAMS_EDIT, streamId);
checkNotEditableStream(streamId, "The stream cannot be edited.");
final Stream stream = streamService.load(streamId);
if (!Strings.isNullOrEmpty(cr.title())) {
stream.setTitle(cr.title());
}
if (!Strings.isNullOrEmpty(cr.description())) {
stream.setDescription(cr.description());
}
if (cr.matchingType() != null) {
try {
stream.setMatchingType(Stream.MatchingType.valueOf(cr.matchingType()));
} catch (IllegalArgumentException e) {
throw new BadRequestException("Invalid matching type '" + cr.matchingType()
+ "' specified. Should be one of: " + Arrays.toString(Stream.MatchingType.values()));
}
}
final Boolean removeMatchesFromDefaultStream = cr.removeMatchesFromDefaultStream();
if(removeMatchesFromDefaultStream != null) {
stream.setRemoveMatchesFromDefaultStream(removeMatchesFromDefaultStream);
}
// Apparently we are sending partial resources sometimes so do not overwrite the index set
// id if it's null/empty in the update request.
if (!Strings.isNullOrEmpty(cr.indexSetId())) {
stream.setIndexSetId(cr.indexSetId());
}
final Optional indexSet = indexSetRegistry.get(stream.getIndexSetId());
if (!indexSet.isPresent()) {
throw new BadRequestException("Index set with ID <" + stream.getIndexSetId() + "> does not exist!");
} else if (!indexSet.get().getConfig().isWritable()) {
throw new BadRequestException("Assigned index set must be writable!");
} else if (!indexSet.get().getConfig().isRegularIndex()) {
throw new BadRequestException("Assigned index set is not usable");
}
streamService.save(stream);
return streamToResponse(stream);
}
@DELETE
@Path("/{streamId}")
@Timed
@ApiOperation(value = "Delete a stream")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid ObjectId.")
})
@AuditEvent(type = AuditEventTypes.STREAM_DELETE)
public void delete(@ApiParam(name = "streamId", required = true) @PathParam("streamId") String streamId) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_EDIT, streamId);
checkNotEditableStream(streamId, "The stream cannot be deleted.");
final Stream stream = streamService.load(streamId);
streamService.destroy(stream);
}
@POST
@Path("/{streamId}/pause")
@Timed
@ApiOperation(value = "Pause a stream")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid or missing Stream id.")
})
@AuditEvent(type = AuditEventTypes.STREAM_STOP)
public void pause(@ApiParam(name = "streamId", required = true)
@PathParam("streamId") @NotEmpty String streamId) throws NotFoundException, ValidationException {
checkAnyPermission(new String[]{RestPermissions.STREAMS_CHANGESTATE, RestPermissions.STREAMS_EDIT}, streamId);
checkNotEditableStream(streamId, "The stream cannot be paused.");
final Stream stream = streamService.load(streamId);
streamService.pause(stream);
}
@POST
@Path("/{streamId}/resume")
@Timed
@ApiOperation(value = "Resume a stream")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid or missing Stream id.")
})
@AuditEvent(type = AuditEventTypes.STREAM_START)
public void resume(@ApiParam(name = "streamId", required = true)
@PathParam("streamId") @NotEmpty String streamId) throws NotFoundException, ValidationException {
checkAnyPermission(new String[]{RestPermissions.STREAMS_CHANGESTATE, RestPermissions.STREAMS_EDIT}, streamId);
checkNotEditableStream(streamId, "The stream cannot be resumed.");
final Stream stream = streamService.load(streamId);
streamService.resume(stream);
}
@POST
@Path("/{streamId}/testMatch")
@Timed
@ApiOperation(value = "Test matching of a stream against a supplied message")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid or missing Stream id.")
})
@NoAuditEvent("only used for testing stream matches")
public TestMatchResponse testMatch(@ApiParam(name = "streamId", required = true)
@PathParam("streamId") String streamId,
@ApiParam(name = "JSON body", required = true)
@NotNull Map> serialisedMessage) throws NotFoundException {
checkPermission(RestPermissions.STREAMS_READ, streamId);
final Stream stream = streamService.load(streamId);
// This is such a hack...
final Map m = new HashMap<>(serialisedMessage.get("message"));
final String timeStamp = firstNonNull((String) m.get(Message.FIELD_TIMESTAMP),
DateTime.now(DateTimeZone.UTC).toString(ISODateTimeFormat.dateTime()));
m.put(Message.FIELD_TIMESTAMP, Tools.dateTimeFromString(timeStamp));
final Message message = new Message(m);
final ExecutorService executor = Executors.newSingleThreadExecutor(
new ThreadFactoryBuilder()
.setNameFormat("stream-" + streamId + "-test-match-%d")
.build()
);
final StreamRouterEngine streamRouterEngine = streamRouterEngineFactory.create(Lists.newArrayList(stream), executor);
final List streamTestMatches = streamRouterEngine.testMatch(message);
final StreamRouterEngine.StreamTestMatch streamTestMatch = streamTestMatches.get(0);
final Map rules = Maps.newHashMap();
for (Map.Entry match : streamTestMatch.getMatches().entrySet()) {
rules.put(match.getKey().getId(), match.getValue());
}
return TestMatchResponse.create(streamTestMatch.isMatched(), rules);
}
@POST
@Path("/{streamId}/clone")
@Timed
@ApiOperation(value = "Clone a stream")
@ApiResponses(value = {
@ApiResponse(code = 404, message = "Stream not found."),
@ApiResponse(code = 400, message = "Invalid or missing Stream id.")
})
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
@AuditEvent(type = AuditEventTypes.STREAM_CREATE)
public Response cloneStream(@ApiParam(name = "streamId", required = true) @PathParam("streamId") String streamId,
@ApiParam(name = "JSON body", required = true) @Valid @NotNull CloneStreamRequest cr,
@Context UserContext userContext) throws ValidationException, NotFoundException {
checkPermission(RestPermissions.STREAMS_CREATE);
checkPermission(RestPermissions.STREAMS_READ, streamId);
checkNotEditableStream(streamId, "The stream cannot be cloned.");
final Stream sourceStream = streamService.load(streamId);
final String creatorUser = getCurrentUser().getName();
final List sourceStreamRules = streamRuleService.loadForStream(sourceStream);
final ImmutableSet.Builder newStreamRules = ImmutableSet.builderWithExpectedSize(sourceStreamRules.size());
for (StreamRule streamRule : sourceStreamRules) {
final Map streamRuleData = Maps.newHashMapWithExpectedSize(6);
streamRuleData.put(StreamRuleImpl.FIELD_TYPE, streamRule.getType().toInteger());
streamRuleData.put(StreamRuleImpl.FIELD_FIELD, streamRule.getField());
streamRuleData.put(StreamRuleImpl.FIELD_VALUE, streamRule.getValue());
streamRuleData.put(StreamRuleImpl.FIELD_INVERTED, streamRule.getInverted());
streamRuleData.put(StreamRuleImpl.FIELD_DESCRIPTION, streamRule.getDescription());
final StreamRule newStreamRule = streamRuleService.create(streamRuleData);
newStreamRules.add(newStreamRule);
}
final Map streamData = Maps.newHashMap();
streamData.put(StreamImpl.FIELD_TITLE, cr.title());
streamData.put(StreamImpl.FIELD_DESCRIPTION, cr.description());
streamData.put(StreamImpl.FIELD_CREATOR_USER_ID, creatorUser);
streamData.put(StreamImpl.FIELD_CREATED_AT, Tools.nowUTC());
streamData.put(StreamImpl.FIELD_MATCHING_TYPE, sourceStream.getMatchingType().toString());
streamData.put(StreamImpl.FIELD_REMOVE_MATCHES_FROM_DEFAULT_STREAM, cr.removeMatchesFromDefaultStream());
streamData.put(StreamImpl.FIELD_DISABLED, true);
streamData.put(StreamImpl.FIELD_INDEX_SET_ID, cr.indexSetId());
final Stream stream = streamService.create(streamData);
final String savedStreamId = streamService.saveWithRulesAndOwnership(stream, newStreamRules.build(), userContext.getUser());
final ObjectId savedStreamObjectId = new ObjectId(savedStreamId);
for (AlertCondition alertCondition : streamService.getAlertConditions(sourceStream)) {
try {
final AlertCondition clonedAlertCondition = alertService.fromRequest(
CreateConditionRequest.create(alertCondition.getType(), alertCondition.getTitle(), alertCondition.getParameters()),
stream,
creatorUser
);
streamService.addAlertCondition(stream, clonedAlertCondition);
} catch (ConfigurationException e) {
LOG.warn("Unable to clone alert condition <" + alertCondition + "> - skipping: ", e);
}
}
for (AlarmCallbackConfiguration alarmCallbackConfiguration : alarmCallbackConfigurationService.getForStream(sourceStream)) {
final CreateAlarmCallbackRequest request = CreateAlarmCallbackRequest.create(alarmCallbackConfiguration);
final AlarmCallbackConfiguration alarmCallback = alarmCallbackConfigurationService.create(stream.getId(), request, getCurrentUser().getName());
alarmCallbackConfigurationService.save(alarmCallback);
}
final Set outputIds = sourceStream.getOutputs().stream()
.map(Output::getId)
.map(ObjectId::new)
.collect(Collectors.toSet());
streamService.addOutputs(savedStreamObjectId, outputIds);
final Map result = ImmutableMap.of("stream_id", savedStreamId);
final URI streamUri = getUriBuilderToSelf().path(StreamResource.class)
.path("{streamId}")
.build(savedStreamId);
return Response.created(streamUri).entity(result).build();
}
private StreamResponse streamToResponse(Stream stream) {
final List emailAlertReceivers = stream.getAlertReceivers().get("emails");
final List usersAlertReceivers = stream.getAlertReceivers().get("users");
final Collection alertConditions = streamService.getAlertConditions(stream)
.stream()
.map((alertCondition) -> AlertConditionSummary.createWithoutGrace(
alertCondition.getId(),
alertCondition.getType(),
alertCondition.getCreatorUserId(),
alertCondition.getCreatedAt().toDate(),
alertCondition.getParameters(),
alertCondition.getTitle()))
.collect(Collectors.toList());
return StreamResponse.create(
stream.getId(),
(String) stream.getFields().get(StreamImpl.FIELD_CREATOR_USER_ID),
outputsToSummaries(stream.getOutputs()),
stream.getMatchingType().name(),
stream.getDescription(),
stream.getFields().get(StreamImpl.FIELD_CREATED_AT).toString(),
stream.getDisabled(),
stream.getStreamRules(),
alertConditions,
AlertReceivers.create(emailAlertReceivers, usersAlertReceivers),
stream.getTitle(),
stream.getContentPack(),
stream.isDefaultStream(),
stream.getRemoveMatchesFromDefaultStream(),
stream.getIndexSetId()
);
}
private Collection outputsToSummaries(Collection outputs) {
return outputs.stream()
.map((output) -> OutputSummary.create(output.getId(),output.getTitle(), output.getType(),
output.getCreatorUserId(), new DateTime(output.getCreatedAt()), output.getConfiguration(), output.getContentPack()))
.collect(Collectors.toSet());
}
private void checkNotEditableStream(String streamId, String message) {
if (Stream.DEFAULT_STREAM_ID.equals(streamId) || !Stream.streamIsEditable(streamId)) {
throw new BadRequestException(message);
}
}
}
