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AbstractTimeSeriesActionHandler.java
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/*
* Copyright OpenSearch Contributors
* SPDX-License-Identifier: Apache-2.0
*/
package org.opensearch.timeseries.rest.handler;
import static org.opensearch.core.xcontent.XContentParserUtils.ensureExpectedToken;
import static org.opensearch.timeseries.constant.CommonMessages.CATEGORICAL_FIELD_TYPE_ERR_MSG;
import static org.opensearch.timeseries.constant.CommonMessages.TIMESTAMP_VALIDATION_FAILED;
import static org.opensearch.timeseries.indices.IndexManagement.getScripts;
import static org.opensearch.timeseries.util.ParseUtils.parseAggregators;
import static org.opensearch.timeseries.util.RestHandlerUtils.XCONTENT_WITH_TYPE;
import static org.opensearch.timeseries.util.RestHandlerUtils.isExceptionCausedByInvalidQuery;
import java.io.IOException;
import java.time.Clock;
import java.util.*;
import java.util.function.Consumer;
import java.util.stream.Collectors;
import org.apache.commons.lang.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.opensearch.OpenSearchStatusException;
import org.opensearch.action.admin.indices.create.CreateIndexResponse;
import org.opensearch.action.admin.indices.mapping.get.GetFieldMappingsAction;
import org.opensearch.action.admin.indices.mapping.get.GetFieldMappingsRequest;
import org.opensearch.action.admin.indices.mapping.get.GetFieldMappingsResponse;
import org.opensearch.action.admin.indices.settings.put.UpdateSettingsRequest;
import org.opensearch.action.get.GetRequest;
import org.opensearch.action.get.GetResponse;
import org.opensearch.action.index.IndexRequest;
import org.opensearch.action.index.IndexResponse;
import org.opensearch.action.ingest.DeletePipelineRequest;
import org.opensearch.action.ingest.PutPipelineRequest;
import org.opensearch.action.search.SearchRequest;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.action.support.IndicesOptions;
import org.opensearch.action.support.WriteRequest;
import org.opensearch.action.support.replication.ReplicationResponse;
import org.opensearch.client.Client;
import org.opensearch.cluster.service.ClusterService;
import org.opensearch.common.settings.Settings;
import org.opensearch.common.unit.TimeValue;
import org.opensearch.common.util.concurrent.ThreadContext;
import org.opensearch.common.xcontent.XContentFactory;
import org.opensearch.common.xcontent.XContentType;
import org.opensearch.commons.authuser.User;
import org.opensearch.core.action.ActionListener;
import org.opensearch.core.action.ActionResponse;
import org.opensearch.core.common.bytes.BytesReference;
import org.opensearch.core.rest.RestStatus;
import org.opensearch.core.xcontent.NamedXContentRegistry;
import org.opensearch.core.xcontent.XContentBuilder;
import org.opensearch.core.xcontent.XContentParser;
import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.rest.RestRequest;
import org.opensearch.search.aggregations.AggregatorFactories;
import org.opensearch.search.builder.SearchSourceBuilder;
import org.opensearch.timeseries.AnalysisType;
import org.opensearch.timeseries.common.exception.TimeSeriesException;
import org.opensearch.timeseries.common.exception.ValidationException;
import org.opensearch.timeseries.constant.CommonMessages;
import org.opensearch.timeseries.constant.CommonName;
import org.opensearch.timeseries.feature.SearchFeatureDao;
import org.opensearch.timeseries.indices.IndexManagement;
import org.opensearch.timeseries.indices.TimeSeriesIndex;
import org.opensearch.timeseries.model.Config;
import org.opensearch.timeseries.model.Feature;
import org.opensearch.timeseries.model.MergeableList;
import org.opensearch.timeseries.model.TaskType;
import org.opensearch.timeseries.model.TimeSeriesTask;
import org.opensearch.timeseries.model.ValidationAspect;
import org.opensearch.timeseries.model.ValidationIssueType;
import org.opensearch.timeseries.settings.TimeSeriesSettings;
import org.opensearch.timeseries.task.TaskCacheManager;
import org.opensearch.timeseries.task.TaskManager;
import org.opensearch.timeseries.util.*;
import org.opensearch.transport.TransportService;
import com.google.common.collect.Sets;
/**
* AbstractTimeSeriesActionHandler serves as the foundational base for handling various time series actions
* such as creating, updating, and validating configurations related to time series analysis. This class encapsulates
* common logic and utilities for managing time series indices, processing requests, and interacting with the OpenSearch cluster
* to execute time series tasks.
*
* Responsibilities include:
* - Validating and processing REST requests for time series configurations, ensuring they comply with predefined
* constraints and formats.
* - Managing interactions with the underlying time series indices, including index creation, document indexing,
* and configuration retrieval.
* - Serving as a base for specialized action handlers that implement specific logic for different types of time series tasks
* (e.g., anomaly detection, forecasting).
* - Handling security and permission validations for time series operations, leveraging OpenSearch's security features
* to ensure operations are performed by authorized users.
*
* The class is designed to be extended by specific action handlers that implement the abstract methods provided,
* allowing for flexible and modular enhancement of the time series capabilities within OpenSearch.
*
* Usage of this class requires extending it to implement the abstract methods, which include but are not limited to
* configuration validation, indexing logic, and model validation. Implementers will benefit from the common utilities
* and framework provided by this class, focusing on the unique logic pertinent to their specific time series task.
*/
public abstract class AbstractTimeSeriesActionHandler<T extends ActionResponse, IndexType extends Enum<IndexType> & TimeSeriesIndex, IndexManagementType extends IndexManagement<IndexType>, TaskCacheManagerType extends TaskCacheManager, TaskTypeEnum extends TaskType, TaskClass extends TimeSeriesTask, TaskManagerType extends TaskManager<TaskCacheManagerType, TaskTypeEnum, TaskClass, IndexType, IndexManagementType>>
implements
Processor<T> {
protected final Logger logger = LogManager.getLogger(AbstractTimeSeriesActionHandler.class);
public static final String NAME_REGEX = "[a-zA-Z0-9._-]+";
public static final Integer MAX_NAME_SIZE = 64;
public static final String CATEGORY_NOT_FOUND_ERR_MSG = "Can't find the categorical field %s in index %s";
public static String INVALID_NAME_SIZE = "Name should be shortened. The maximum limit is "
+ AbstractTimeSeriesActionHandler.MAX_NAME_SIZE
+ " characters.";
public static final Set<String> ALL_VALIDATION_ASPECTS_STRS = Arrays
.asList(ValidationAspect.values())
.stream()
.map(aspect -> aspect.getName())
.collect(Collectors.toSet());
protected final Config config;
protected final IndexManagement<IndexType> timeSeriesIndices;
protected final boolean isDryRun;
protected final Client client;
protected final String id;
protected final SecurityClientUtil clientUtil;
protected final User user;
protected final RestRequest.Method method;
protected final ConfigUpdateConfirmer<IndexType, IndexManagementType, TaskCacheManagerType, TaskTypeEnum, TaskClass, TaskManagerType> handler;
protected final ClusterService clusterService;
protected final NamedXContentRegistry xContentRegistry;
protected final TimeValue requestTimeout;
protected final WriteRequest.RefreshPolicy refreshPolicy;
protected final Long seqNo;
protected final Long primaryTerm;
protected final String validationType;
protected final SearchFeatureDao searchFeatureDao;
protected final Integer maxFeatures;
protected final Integer maxCategoricalFields;
protected final AnalysisType context;
protected final List<TaskTypeEnum> batchTasks;
protected final boolean canUpdateEverything;
protected final Integer maxSingleStreamConfigs;
protected final Integer maxHCConfigs;
protected final Clock clock;
protected final Settings settings;
protected final ValidationAspect configValidationAspect;
protected boolean breakingUIChange;
public AbstractTimeSeriesActionHandler(
Config config,
IndexManagement<IndexType> timeSeriesIndices,
boolean isDryRun,
Client client,
String id,
SecurityClientUtil clientUtil,
User user,
RestRequest.Method method,
ClusterService clusterService,
NamedXContentRegistry xContentRegistry,
TransportService transportService,
TimeValue requestTimeout,
WriteRequest.RefreshPolicy refreshPolicy,
Long seqNo,
Long primaryTerm,
String validationType,
SearchFeatureDao searchFeatureDao,
Integer maxFeatures,
Integer maxCategoricalFields,
AnalysisType context,
TaskManagerType taskManager,
List<TaskTypeEnum> batchTasks,
boolean canUpdateCategoryField,
Integer maxSingleStreamConfigs,
Integer maxHCConfigs,
Clock clock,
Settings settings,
ValidationAspect configValidationAspect
) {
this.config = config;
this.timeSeriesIndices = timeSeriesIndices;
this.isDryRun = isDryRun;
this.client = client;
this.id = id == null ? "" : id;
this.clientUtil = clientUtil;
this.user = user;
this.method = method;
this.clusterService = clusterService;
this.xContentRegistry = xContentRegistry;
this.requestTimeout = requestTimeout;
this.refreshPolicy = refreshPolicy;
this.seqNo = seqNo;
this.primaryTerm = primaryTerm;
this.validationType = validationType;
this.searchFeatureDao = searchFeatureDao;
this.maxFeatures = maxFeatures;
this.maxCategoricalFields = maxCategoricalFields;
this.context = context;
this.batchTasks = batchTasks;
this.canUpdateEverything = canUpdateCategoryField;
this.maxSingleStreamConfigs = maxSingleStreamConfigs;
this.maxHCConfigs = maxHCConfigs;
this.clock = clock;
this.settings = settings;
this.handler = new ConfigUpdateConfirmer<>(taskManager, transportService);
this.configValidationAspect = configValidationAspect;
this.breakingUIChange = false;
}
/**
* Start function to process create/update/validate config request.
*
* If validation type is detector/forecaster then all validation in this class involves validation
* checks against the configurations.
* Any issues raised here would block user from creating the config (e.g., anomaly detector).
* If validation Aspect is of type model then further non-blocker validation will be executed
* after the blocker validation is executed. Any issues that are raised for model validation
* are simply warnings for the user in terms of how configuration could be changed to lead to
* a higher likelihood of model training completing successfully.
*
* For custom index validation, if config is not using custom result index, check if config
* index exist first, if not, will create first. Otherwise, check if custom
* result index exists or not. If exists, will check if index mapping matches
* config result index mapping and if user has correct permission to write index.
* If doesn't exist, will create custom result index with result index
* mapping.
*/
@Override
public void start(ActionListener<T> listener) {
String resultIndexOrAlias = config.getCustomResultIndexOrAlias();
// use default detector result index which is system index
if (resultIndexOrAlias == null) {
createOrUpdateConfig(listener);
return;
}
if (this.isDryRun) {
if (timeSeriesIndices.doesIndexExist(resultIndexOrAlias) || timeSeriesIndices.doesAliasExist(resultIndexOrAlias)) {
timeSeriesIndices
.validateResultIndexAndExecute(
resultIndexOrAlias,
() -> createOrUpdateConfig(listener),
false,
ActionListener.wrap(r -> createOrUpdateConfig(listener), ex -> {
logger.error(ex);
listener.onFailure(createValidationException(ex.getMessage(), ValidationIssueType.RESULT_INDEX));
return;
})
);
return;
} else {
createOrUpdateConfig(listener);
return;
}
}
// use custom result index if not validating and resultIndex not null
timeSeriesIndices.initCustomResultIndexAndExecute(resultIndexOrAlias, () -> createOrUpdateConfig(listener), listener);
}
// if isDryRun is true then this method is being executed through Validation API meaning actual
// index won't be created, only validation checks will be executed throughout the class
private void createOrUpdateConfig(ActionListener<T> listener) {
try (ThreadContext.StoredContext context = client.threadPool().getThreadContext().stashContext()) {
if (!timeSeriesIndices.doesConfigIndexExist() && !this.isDryRun) {
logger.info("Config Indices do not exist");
timeSeriesIndices
.initConfigIndex(
ActionListener
.wrap(
response -> onCreateMappingsResponse(response, false, listener),
exception -> listener.onFailure(exception)
)
);
} else {
logger.info("DryRun variable " + this.isDryRun);
validateName(this.isDryRun, listener);
}
} catch (Exception e) {
logger.error("Failed to create or update forecaster " + id, e);
listener.onFailure(e);
}
}
protected void validateName(boolean indexingDryRun, ActionListener<T> listener) {
if (!config.getName().matches(NAME_REGEX)) {
listener.onFailure(createValidationException(CommonMessages.INVALID_NAME, ValidationIssueType.NAME));
return;
}
if (config.getName().length() > MAX_NAME_SIZE) {
listener.onFailure(createValidationException(AbstractTimeSeriesActionHandler.INVALID_NAME_SIZE, ValidationIssueType.NAME));
return;
}
validateTimeField(indexingDryRun, listener);
}
protected void validateTimeField(boolean indexingDryRun, ActionListener<T> listener) {
String givenTimeField = config.getTimeField();
HashMap<String, List<String>> clusterIndicesMap = CrossClusterConfigUtils
.separateClusterIndexes(config.getIndices(), clusterService);
ActionListener<MergeableList<Optional<double[]>>> validateGetMappingForTimeFieldListener = ActionListener.wrap(response -> {
prepareConfigIndexing(indexingDryRun, listener);
}, exception -> { listener.onFailure(createValidationException(exception.getMessage(), ValidationIssueType.TIMEFIELD_FIELD)); });
MultiResponsesDelegateActionListener<MergeableList<Optional<double[]>>> multiGetMappingResponseListener =
new MultiResponsesDelegateActionListener<>(
validateGetMappingForTimeFieldListener,
clusterIndicesMap.entrySet().size(),
String.format(Locale.ROOT, TIMESTAMP_VALIDATION_FAILED, config.getName()),
false
);
for (Map.Entry<String, List<String>> clusterIndicesEntry : clusterIndicesMap.entrySet()) {
GetFieldMappingsRequest getMappingsRequestForIndex = new GetFieldMappingsRequest();
getMappingsRequestForIndex.indices((clusterIndicesEntry.getValue().toArray(new String[0]))).fields(givenTimeField);
getMappingsRequestForIndex.indicesOptions(IndicesOptions.strictExpand());
Client targetClusterClient = CrossClusterConfigUtils.getClientForCluster(clusterIndicesEntry.getKey(), client, clusterService);
ActionListener<GetFieldMappingsResponse> getMappingResponseListener = ActionListener.wrap(getMappingsResponse -> {
boolean foundField = false;
Map<String, Map<String, GetFieldMappingsResponse.FieldMappingMetadata>> mappingsByIndex = getMappingsResponse.mappings();
for (Map.Entry<String, Map<String, GetFieldMappingsResponse.FieldMappingMetadata>> mappingsByField : mappingsByIndex
.entrySet()) {
if (mappingsByField.getValue().isEmpty()) {
multiGetMappingResponseListener
.onFailure(
new ValidationException(
String
.format(
Locale.ROOT,
CommonMessages.NON_EXISTENT_TIMESTAMP_IN_INDEX,
givenTimeField,
mappingsByField.getKey()
),
ValidationIssueType.TIMEFIELD_FIELD,
configValidationAspect
)
);
return;
}
for (Map.Entry<String, GetFieldMappingsResponse.FieldMappingMetadata> field2Metadata : mappingsByField
.getValue()
.entrySet()) {
GetFieldMappingsResponse.FieldMappingMetadata fieldMetadata = field2Metadata.getValue();
if (fieldMetadata != null) {
// sourceAsMap returns sth like {host2={type=keyword}} with host2 being a nested field
Map<String, Object> fieldMap = fieldMetadata.sourceAsMap();
if (fieldMap != null) {
for (Object type : fieldMap.values()) {
if (type instanceof Map) {
foundField = true;
Map<String, Object> metadataMap = (Map<String, Object>) type;
String typeName = (String) metadataMap.get(CommonName.TYPE);
if (!typeName.equals(CommonName.DATE_TYPE) && !typeName.equals(CommonName.DATE_NANOS_TYPE)) {
multiGetMappingResponseListener
.onFailure(
new ValidationException(
String.format(Locale.ROOT, CommonMessages.INVALID_TIMESTAMP, givenTimeField),
ValidationIssueType.TIMEFIELD_FIELD,
configValidationAspect
)
);
return;
}
}
}
}
}
}
}
if (!foundField) {
multiGetMappingResponseListener
.onFailure(
new ValidationException(
String.format(Locale.ROOT, CommonMessages.NON_EXISTENT_TIMESTAMP, givenTimeField),
ValidationIssueType.TIMEFIELD_FIELD,
configValidationAspect
)
);
return;
}
multiGetMappingResponseListener
.onResponse(new MergeableList<>(new ArrayList<>(Collections.singletonList(Optional.empty()))));
}, e -> {
String errorMessage = String.format(Locale.ROOT, "Fail to get the index mapping of %s", clusterIndicesEntry.getValue());
logger.error(errorMessage, e);
multiGetMappingResponseListener.onFailure(new IllegalArgumentException(errorMessage, e));
});
clientUtil
.executeWithInjectedSecurity(
GetFieldMappingsAction.INSTANCE,
getMappingsRequestForIndex,
user,
targetClusterClient,
context,
getMappingResponseListener
);
}
}
/**
* Prepares for indexing a new configuration.
*
* This method handles the preparation of indexing a configuration, either during validation (dry run)
* or for create/update operations. It supports both PUT and POST REST request methods.
*
* @param indexingDryRun indicates whether this is a dry run for indexing.
* If {@code true}, the operation performs validation without creating/updating the configuration.
* If {@code false}, the configuration is created or updated.
* @param listener the {@link ActionListener} to handle the response or failure of the operation.
*
* <p><b>Behavior:</b></p>
* <ul>
* <li>For {@code RestRequest.Method.PUT}: Validates that the job is not already running before proceeding
* with updating the configuration. It updates the configuration and manages the result index mapping
* if necessary.</li>
* <li>For {@code RestRequest.Method.POST}: Creates a new configuration. If a custom result index or alias is specified:
* <ul>
* <li>If flattening of the result index mapping is enabled, it initializes a flattened result index,
* sets up an ingest pipeline, and updates the flattened result index settings to bind the ingest pipeline
* with the flattened result index, enabling the writing of flattened nested fields into the flattened result index.</li>
* <li>If flattening is not enabled, directly returns the creation response.</li>
* </ul>
* If no custom result index or alias is specified, returns the creation response directly.</li>
* </ul>
*
* <p><b>Notes:</b></p>
* <ul>
* <li>If the configuration has a custom result index or alias and flattening is enabled,
* the flattened result index name is suffixed with the detector ID in lowercase.</li>
* <li>The ingest pipeline ID is uniquely generated based on the detector ID in lowercase.</li>
* </ul>
*
* <p><b>Exceptions:</b></p>
* <ul>
* <li>If the {@code createConfigResponse} is of an unexpected type, which indicates create config call has failed,
* then an {@link IllegalStateException} is thrown.</li>
* </ul>
*/
protected void prepareConfigIndexing(boolean indexingDryRun, ActionListener<T> listener) {
if (method == RestRequest.Method.PUT) {
handlePutRequest(indexingDryRun, listener);
} else {
handlePostRequest(indexingDryRun, listener);
}
}
private void handlePutRequest(boolean indexingDryRun, ActionListener<T> listener) {
handler
.confirmJobRunning(
clusterService,
client,
id,
listener,
() -> { updateConfig(id, indexingDryRun, listener); },
xContentRegistry
);
}
private void handlePostRequest(boolean indexingDryRun, ActionListener<T> listener) {
createConfig(indexingDryRun, ActionListener.wrap(createConfigResponse -> {
if (shouldHandleFlattening(indexingDryRun)) {
String flattenedResultIndexAlias = config.getFlattenResultIndexAlias();
initAndSetupPipeline(flattenedResultIndexAlias, listener, l -> l.onResponse(createConfigResponse));
} else {
listener.onResponse(createConfigResponse);
}
}, listener::onFailure));
}
private boolean shouldHandleFlattening(boolean indexingDryRun) {
Boolean flattenResultIndexMapping = config.getFlattenResultIndexMapping();
return !indexingDryRun && config.getCustomResultIndexOrAlias() != null && Boolean.TRUE.equals(flattenResultIndexMapping);
}
private void initAndSetupPipeline(String flattenedResultIndexAlias, ActionListener<T> listener, Consumer<ActionListener<T>> onSuccess) {
timeSeriesIndices
.initFlattenedResultIndex(
flattenedResultIndexAlias,
ActionListener
.wrap(initResponse -> setupIngestPipeline(flattenedResultIndexAlias, listener, onSuccess), listener::onFailure)
);
}
private void setupIngestPipeline(String flattenedResultIndexAlias, ActionListener<T> listener, Consumer<ActionListener<T>> onSuccess) {
String pipelineId = config.getFlattenResultIndexIngestPipelineName();
try {
BytesReference pipelineSource = createPipelineDefinition(flattenedResultIndexAlias);
PutPipelineRequest putPipelineRequest = new PutPipelineRequest(pipelineId, pipelineSource, XContentType.JSON);
client.admin().cluster().putPipeline(putPipelineRequest, ActionListener.wrap(putPipelineResponse -> {
logger.info("Ingest pipeline created successfully for pipelineId: {}", pipelineId);
bindIngestPipelineWithFlattenedResultIndex(pipelineId, flattenedResultIndexAlias, listener, onSuccess);
}, exception -> {
logger.error("Error while creating ingest pipeline for pipelineId: {}", pipelineId, exception);
listener.onFailure(exception);
}));
} catch (IOException e) {
logger.error("Exception while building ingest pipeline definition for pipeline ID: {}", pipelineId, e);
listener.onFailure(e);
}
}
private void bindIngestPipelineWithFlattenedResultIndex(
String pipelineId,
String flattenedResultIndexAlias,
ActionListener<T> listener,
Consumer<ActionListener<T>> onSuccess
) {
UpdateSettingsRequest updateSettingsRequest = buildUpdateSettingsRequest(flattenedResultIndexAlias, pipelineId);
client.admin().indices().updateSettings(updateSettingsRequest, ActionListener.wrap(updateSettingsResponse -> {
logger.info("Successfully updated settings for index: {} with pipeline: {}", flattenedResultIndexAlias, pipelineId);
onSuccess.accept(listener);
}, exception -> {
logger.error("Failed to update settings for index: {} with pipeline: {}", flattenedResultIndexAlias, pipelineId, exception);
listener.onFailure(exception);
}));
}
private BytesReference createPipelineDefinition(String indexName) throws IOException {
XContentBuilder pipelineBuilder = XContentFactory.jsonBuilder();
pipelineBuilder.startObject();
{
pipelineBuilder.field("description", "Ingest pipeline for flattening result index: " + indexName);
pipelineBuilder.startArray("processors");
{
pipelineBuilder.startObject();
{
pipelineBuilder.startObject("script");
{
pipelineBuilder.field("lang", "painless");
String flattenScript = getScripts(TimeSeriesSettings.FLATTEN_CUSTOM_RESULT_INDEX_PAINLESS);
pipelineBuilder.field("source", flattenScript);
}
pipelineBuilder.endObject();
}
pipelineBuilder.endObject();
}
pipelineBuilder.endArray();
}
pipelineBuilder.endObject();
return BytesReference.bytes(pipelineBuilder);
}
private UpdateSettingsRequest buildUpdateSettingsRequest(String flattenedResultIndexAlias, String defaultPipelineName) {
UpdateSettingsRequest updateSettingsRequest = new UpdateSettingsRequest();
updateSettingsRequest.indices(flattenedResultIndexAlias);
Settings.Builder settingsBuilder = Settings.builder();
settingsBuilder.put("index.default_pipeline", defaultPipelineName);
updateSettingsRequest.settings(settingsBuilder);
return updateSettingsRequest;
}
protected void updateConfig(String id, boolean indexingDryRun, ActionListener<T> listener) {
GetRequest request = new GetRequest(CommonName.CONFIG_INDEX, id);
client
.get(
request,
ActionListener
.wrap(
response -> onGetConfigResponse(response, indexingDryRun, id, listener),
exception -> listener.onFailure(exception)
)
);
}
private void onGetConfigResponse(GetResponse response, boolean indexingDryRun, String id, ActionListener<T> listener) {
if (!response.isExists()) {
listener.onFailure(new OpenSearchStatusException(CommonMessages.FAIL_TO_FIND_CONFIG_MSG + id, RestStatus.NOT_FOUND));
return;
}
try (XContentParser parser = RestHandlerUtils.createXContentParserFromRegistry(xContentRegistry, response.getSourceAsBytesRef())) {
ensureExpectedToken(XContentParser.Token.START_OBJECT, parser.nextToken(), parser);
Config existingConfig = parse(parser, response);
// If category field changed, frontend may not be able to render AD result for different config types correctly.
// For example, if an anomaly detector changed from HC to single entity detector, AD result page may show multiple anomaly
// result points on the same time point if there are multiple entities have anomaly results.
// If single-category HC changed category field from IP to error type, the AD result page may show both IP and error type
// in top N entities list. That's confusing.
// So we decide to block updating detector category field.
// for forecasting, we will not show results after forecaster configuration change
// thus it is safe to allow updating everything. In the future, we might change AD to allow such behavior.
if (!canUpdateEverything) {
if (!ParseUtils.listEqualsWithoutConsideringOrder(existingConfig.getCategoryFields(), config.getCategoryFields())) {
listener.onFailure(new OpenSearchStatusException(CommonMessages.CAN_NOT_CHANGE_CATEGORY_FIELD, RestStatus.BAD_REQUEST));
return;
}
if (!Objects.equals(existingConfig.getCustomResultIndexOrAlias(), config.getCustomResultIndexOrAlias())) {
listener
.onFailure(
new OpenSearchStatusException(CommonMessages.CAN_NOT_CHANGE_CUSTOM_RESULT_INDEX, RestStatus.BAD_REQUEST)
);
return;
}
} else {
if (!ParseUtils.listEqualsWithoutConsideringOrder(existingConfig.getCategoryFields(), config.getCategoryFields())
|| !Objects.equals(existingConfig.getCustomResultIndexOrAlias(), config.getCustomResultIndexOrAlias())) {
breakingUIChange = true;
}
}
ActionListener<Void> confirmBatchRunningListener;
// when unselecting flatten result index, need to clean up alias and ingest pipeline resources
if (existingConfig.getFlattenResultIndexMapping()
&& !config.getFlattenResultIndexMapping()
&& existingConfig.getCustomResultIndexOrAlias() != null) {
confirmBatchRunningListener = ActionListener
.wrap(
r -> unbindIngestPipelineWithFlattenedResultIndex(existingConfig, listener, id, indexingDryRun),
// can't update config if there is task running
listener::onFailure
);
} else if (!existingConfig.getFlattenResultIndexMapping()
&& config.getFlattenResultIndexMapping()
&& existingConfig.getCustomResultIndexOrAlias() != null) {
confirmBatchRunningListener = ActionListener
.wrap(
r -> initAndSetupPipeline(
config.getFlattenResultIndexAlias(),
listener,
l -> searchConfigInputIndices(id, indexingDryRun, l)
),
listener::onFailure
);
} else {
confirmBatchRunningListener = ActionListener
.wrap(
r -> searchConfigInputIndices(id, indexingDryRun, listener),
// can't update config if there is task running
listener::onFailure
);
}
handler.confirmBatchRunning(id, batchTasks, confirmBatchRunningListener);
} catch (Exception e) {
String message = "Failed to parse config " + id;
logger.error(message, e);
listener.onFailure(new OpenSearchStatusException(message, RestStatus.INTERNAL_SERVER_ERROR));
}
}
private void unbindIngestPipelineWithFlattenedResultIndex(
Config existingConfig,
ActionListener<T> listener,
String id,
boolean indexingDryRun
) {
// The pipeline name _none specifies that the index does not have an ingest pipeline.
UpdateSettingsRequest updateSettingsRequest = buildUpdateSettingsRequest(existingConfig.getFlattenResultIndexAlias(), "_none");
client
.admin()
.indices()
.updateSettings(
updateSettingsRequest,
ActionListener
.wrap(
updateSettingsResponse -> deleteIngestPipeline(existingConfig, listener, id, indexingDryRun),
exception -> listener.onFailure(exception)
)
);
}
private void deleteIngestPipeline(Config existingConfig, ActionListener<T> listener, String id, boolean indexingDryRun) {
String pipelineId = existingConfig.getFlattenResultIndexIngestPipelineName();
client
.admin()
.cluster()
.deletePipeline(
new DeletePipelineRequest(pipelineId),
ActionListener
.wrap(
deleteIngestPipelineResponse -> searchConfigInputIndices(id, indexingDryRun, listener),
exception -> listener.onFailure(exception)
)
);
}
protected void validateAgainstExistingHCConfig(String configId, boolean indexingDryRun, ActionListener<T> listener) {
if (timeSeriesIndices.doesConfigIndexExist()) {
QueryBuilder query = QueryBuilders.boolQuery().filter(QueryBuilders.existsQuery(Config.CATEGORY_FIELD));
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder().query(query).size(0).timeout(requestTimeout);
SearchRequest searchRequest = new SearchRequest(CommonName.CONFIG_INDEX).source(searchSourceBuilder);
client
.search(
searchRequest,
ActionListener
.wrap(
response -> onSearchHCConfigResponse(response, configId, indexingDryRun, listener),
exception -> listener.onFailure(exception)
)
);
} else {
validateCategoricalFieldsInAllIndices(configId, indexingDryRun, listener);
}
}
protected void createConfig(boolean indexingDryRun, ActionListener<T> listener) {
try {
List<String> categoricalFields = config.getCategoryFields();
if (categoricalFields != null && categoricalFields.size() > 0) {
validateAgainstExistingHCConfig(null, indexingDryRun, listener);
} else {
if (timeSeriesIndices.doesConfigIndexExist()) {
QueryBuilder query = QueryBuilders.matchAllQuery();
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder().query(query).size(0).timeout(requestTimeout);
SearchRequest searchRequest = new SearchRequest(CommonName.CONFIG_INDEX).source(searchSourceBuilder);
client
.search(
searchRequest,
ActionListener
.wrap(
response -> onSearchTotalConfigResponse(response, indexingDryRun, listener),
exception -> listener.onFailure(exception)
)
);
} else {
searchConfigInputIndices(null, indexingDryRun, listener);
}
}
} catch (Exception e) {
listener.onFailure(e);
}
}
protected void onSearchTotalConfigResponse(SearchResponse response, boolean indexingDryRun, ActionListener<T> listener)
throws IOException {
if (response.getHits().getTotalHits().value >= getMaxSingleStreamConfigs()) {
String errorMsgSingleEntity = getExceedMaxSingleStreamConfigsErrorMsg(getMaxSingleStreamConfigs());
logger.error(errorMsgSingleEntity);
if (indexingDryRun) {
listener.onFailure(createValidationException(errorMsgSingleEntity, ValidationIssueType.GENERAL_SETTINGS));
return;
}
listener.onFailure(new IllegalArgumentException(errorMsgSingleEntity));
} else {
searchConfigInputIndices(null, indexingDryRun, listener);
}
}
protected void onSearchHCConfigResponse(SearchResponse response, String detectorId, boolean indexingDryRun, ActionListener<T> listener)
throws IOException {
if (response.getHits().getTotalHits().value >= getMaxHCConfigs()) {
String errorMsg = getExceedMaxHCConfigsErrorMsg(getMaxHCConfigs());
logger.error(errorMsg);
if (indexingDryRun) {
listener.onFailure(createValidationException(errorMsg, ValidationIssueType.GENERAL_SETTINGS));
return;
}
listener.onFailure(new IllegalArgumentException(errorMsg));
} else {
validateCategoricalFieldsInAllIndices(detectorId, indexingDryRun, listener);
}
}
protected void validateCategoricalFieldsInAllIndices(String configId, boolean indexingDryRun, ActionListener<T> listener) {
HashMap<String, List<String>> clusterIndicesMap = CrossClusterConfigUtils
.separateClusterIndexes(config.getIndices(), clusterService);
Iterator<Map.Entry<String, List<String>>> iterator = clusterIndicesMap.entrySet().iterator();
validateCategoricalField(iterator, configId, indexingDryRun, listener);
}
protected void validateCategoricalField(
Iterator<Map.Entry<String, List<String>>> iterator,
String configId,
boolean indexingDryRun,
ActionListener<T> listener
) {
if (!iterator.hasNext()) {
searchConfigInputIndices(configId, indexingDryRun, listener); // Call after all indices are validated
return;
}
// Get the next cluster indices entry
Map.Entry<String, List<String>> clusterIndicesEntry = iterator.next();
List<String> categoryField = config.getCategoryFields();
// categoryField should have at least 1 element. Otherwise, we won't reach here.
// we only support a certain number of categorical field
// If there is more fields than required, Config's constructor
// throws validation exception before reaching here
String categoryField0 = categoryField.get(0);
Client targetClusterClient = CrossClusterConfigUtils.getClientForCluster(clusterIndicesEntry.getKey(), client, clusterService);
// Create the GetFieldMappingsRequest for each index
GetFieldMappingsRequest getMappingsRequestForIndex = new GetFieldMappingsRequest();
getMappingsRequestForIndex
.indices(clusterIndicesEntry.getValue().toArray(new String[0]))
.fields(categoryField.toArray(new String[0]));
getMappingsRequestForIndex.indicesOptions(IndicesOptions.strictExpand());
// Define the listener for each getMapping request
ActionListener<GetFieldMappingsResponse> getMappingsListener = ActionListener.wrap(getMappingsResponse -> {
// example getMappingsResponse:
// GetFieldMappingsResponse{mappings={server-metrics={_doc={service=FieldMappingMetadata{fullName='service',
// source=org.opensearch.core.common.bytes.BytesArray@7ba87dbd}}}}}
// for nested field, it would be
// GetFieldMappingsResponse{mappings={server-metrics={_doc={host_nest.host2=FieldMappingMetadata{fullName='host_nest.host2',
// source=org.opensearch.core.common.bytes.BytesArray@8fb4de08}}}}}
boolean foundField = false;
// Review why the change from FieldMappingMetadata to GetFieldMappingsResponse.FieldMappingMetadata
Map<String, Map<String, GetFieldMappingsResponse.FieldMappingMetadata>> mappingsByIndex = getMappingsResponse.mappings();
for (Map<String, GetFieldMappingsResponse.FieldMappingMetadata> mappingsByField : mappingsByIndex.values()) {
for (Map.Entry<String, GetFieldMappingsResponse.FieldMappingMetadata> field2Metadata : mappingsByField.entrySet()) {
// example output:
// host_nest.host2=FieldMappingMetadata{fullName='host_nest.host2',
// source=org.opensearch.core.common.bytes.BytesArray@8fb4de08}
// Review why the change from FieldMappingMetadata to GetFieldMappingsResponse.FieldMappingMetadata
GetFieldMappingsResponse.FieldMappingMetadata fieldMetadata = field2Metadata.getValue();
if (fieldMetadata != null) {
// sourceAsMap returns sth like {host2={type=keyword}} with host2 being a nested field
Map<String, Object> fieldMap = fieldMetadata.sourceAsMap();
if (fieldMap != null) {
for (Object type : fieldMap.values()) {
if (type != null && type instanceof Map) {
foundField = true;
Map<String, Object> metadataMap = (Map<String, Object>) type;
String typeName = (String) metadataMap.get(CommonName.TYPE);
if (!typeName.equals(CommonName.KEYWORD_TYPE) && !typeName.equals(CommonName.IP_TYPE)) {
String error = String.format(Locale.ROOT, CATEGORICAL_FIELD_TYPE_ERR_MSG, field2Metadata.getKey());
listener.onFailure(createValidationException(error, ValidationIssueType.CATEGORY));
return;
}
}
}
}
}
}
}
if (foundField == false) {
listener
.onFailure(
createValidationException(
String
.format(
Locale.ROOT,
CATEGORY_NOT_FOUND_ERR_MSG,
categoryField0,
Arrays.toString(clusterIndicesEntry.getValue().toArray(new String[0]))
),
ValidationIssueType.CATEGORY
)
);
return;
}
validateCategoricalField(iterator, configId, indexingDryRun, listener);
}, error -> {
String message = String.format(Locale.ROOT, CommonMessages.FAIL_TO_GET_MAPPING_MSG, config.getIndices());
logger.error(message, error);
listener.onFailure(new IllegalArgumentException(message));
});
clientUtil
.executeWithInjectedSecurity(
GetFieldMappingsAction.INSTANCE,
getMappingsRequestForIndex,
user,
targetClusterClient,
context,
getMappingsListener
);
}
protected void searchConfigInputIndices(String configId, boolean indexingDryRun, ActionListener<T> listener) {
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder()
.query(QueryBuilders.matchAllQuery())
.size(0)
.timeout(requestTimeout);
SearchRequest searchRequest = new SearchRequest(config.getIndices().toArray(new String[0])).source(searchSourceBuilder);
ActionListener<SearchResponse> searchResponseListener = ActionListener
.wrap(
searchResponse -> onSearchConfigInputIndicesResponse(searchResponse, configId, indexingDryRun, listener),
exception -> listener.onFailure(exception)
);
clientUtil.asyncRequestWithInjectedSecurity(searchRequest, client::search, user, client, context, searchResponseListener);
}
protected void onSearchConfigInputIndicesResponse(
SearchResponse response,
String configId,
boolean indexingDryRun,
ActionListener<T> listener
) throws IOException {
if (response.getHits().getTotalHits().value == 0) {
String errorMsg = getNoDocsInUserIndexErrorMsg(Arrays.toString(config.getIndices().toArray(new String[0])));
logger.error(errorMsg);
if (indexingDryRun) {
listener.onFailure(createValidationException(errorMsg, ValidationIssueType.INDICES));
return;
}
listener.onFailure(new IllegalArgumentException(errorMsg));
} else {
validateConfigFeatures(configId, indexingDryRun, listener);
}
}
protected void checkConfigNameExists(String configId, boolean indexingDryRun, ActionListener<T> listener) throws IOException {
if (timeSeriesIndices.doesConfigIndexExist()) {
BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();
// src/main/resources/mappings/config.json#L14
boolQueryBuilder.must(QueryBuilders.termQuery("name.keyword", config.getName()));
if (StringUtils.isNotBlank(configId)) {
boolQueryBuilder.mustNot(QueryBuilders.termQuery(RestHandlerUtils._ID, configId));
}
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder().query(boolQueryBuilder).timeout(requestTimeout);
SearchRequest searchRequest = new SearchRequest(CommonName.CONFIG_INDEX).source(searchSourceBuilder);
client
.search(
searchRequest,
ActionListener
.wrap(
searchResponse -> onSearchConfigNameResponse(searchResponse, config.getName(), indexingDryRun, listener),
exception -> listener.onFailure(exception)
)
);
} else {
tryIndexingConfig(indexingDryRun, listener);
}
}
protected void onSearchConfigNameResponse(SearchResponse response, String name, boolean indexingDryRun, ActionListener<T> listener)
throws IOException {
if (response.getHits().getTotalHits().value > 0) {
String errorMsg = getDuplicateConfigErrorMsg(name);
logger.warn(errorMsg);
if (indexingDryRun) {
listener.onFailure(createValidationException(errorMsg, ValidationIssueType.NAME));
} else {
listener.onFailure(new OpenSearchStatusException(errorMsg, RestStatus.CONFLICT));
}
} else {
tryIndexingConfig(indexingDryRun, listener);
}
}
protected void tryIndexingConfig(boolean indexingDryRun, ActionListener<T> listener) throws IOException {
if (!indexingDryRun) {
indexConfig(id, listener);
} else {
finishConfigValidationOrContinueToModelValidation(listener);
}
}
protected Set<ValidationAspect> getValidationTypes(String validationType) {
if (StringUtils.isBlank(validationType)) {
return getDefaultValidationType();
} else {
Set<String> typesInRequest = new HashSet<>(Arrays.asList(validationType.split(",")));
return ValidationAspect
.getNames(Sets.intersection(AbstractTimeSeriesActionHandler.ALL_VALIDATION_ASPECTS_STRS, typesInRequest));
}
}
protected void finishConfigValidationOrContinueToModelValidation(ActionListener<T> listener) {
logger.info("Skipping indexing detector. No blocking issue found so far.");
if (!getValidationTypes(validationType).contains(ValidationAspect.MODEL)) {
listener.onResponse(null);
} else {
validateModel(listener);
}
}