weixiang1862 commented on code in PR #11168: URL: https://github.com/apache/skywalking/pull/11168#discussion_r1281533845
########## oap-server/server-query-plugin/logql-plugin/src/main/java/org/apache/skywalking/oap/query/logql/handler/LogQLApiHandler.java: ########## @@ -0,0 +1,233 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +package org.apache.skywalking.oap.query.logql.handler; + +import com.fasterxml.jackson.core.JsonProcessingException; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.linecorp.armeria.common.HttpData; +import com.linecorp.armeria.common.HttpResponse; +import com.linecorp.armeria.common.HttpStatus; +import com.linecorp.armeria.common.MediaType; +import com.linecorp.armeria.common.ResponseHeaders; +import com.linecorp.armeria.server.annotation.Get; +import com.linecorp.armeria.server.annotation.Param; +import com.linecorp.armeria.server.annotation.Path; +import java.io.IOException; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; +import org.antlr.v4.runtime.CharStreams; +import org.antlr.v4.runtime.CommonTokenStream; +import org.antlr.v4.runtime.misc.ParseCancellationException; +import org.antlr.v4.runtime.tree.ParseTree; +import org.apache.skywalking.logql.rt.grammar.LogQLLexer; +import org.apache.skywalking.logql.rt.grammar.LogQLParser; +import org.apache.skywalking.oap.query.logql.entity.LabelName; +import org.apache.skywalking.oap.query.logql.entity.LogDirection; +import org.apache.skywalking.oap.query.logql.entity.ResultStatus; +import org.apache.skywalking.oap.query.logql.entity.response.LabelValuesQueryRsp; +import org.apache.skywalking.oap.query.logql.entity.response.LabelsQueryRsp; +import org.apache.skywalking.oap.query.logql.entity.response.LogRangeQueryRsp; +import org.apache.skywalking.oap.query.logql.entity.response.QueryResponse; +import org.apache.skywalking.oap.query.logql.entity.response.ResultType; +import org.apache.skywalking.oap.query.logql.entity.response.StreamLog; +import org.apache.skywalking.oap.query.logql.entity.response.TimeValuePair; +import org.apache.skywalking.oap.query.logql.rt.LogQLExprVisitor; +import org.apache.skywalking.oap.query.logql.rt.exception.ParseErrorListener; +import org.apache.skywalking.oap.query.logql.rt.result.LogQLParseResult; +import org.apache.skywalking.oap.server.core.CoreModule; +import org.apache.skywalking.oap.server.core.analysis.IDManager; +import org.apache.skywalking.oap.server.core.analysis.manual.searchtag.Tag; +import org.apache.skywalking.oap.server.core.analysis.manual.searchtag.TagType; +import org.apache.skywalking.oap.server.core.query.DurationUtils; +import org.apache.skywalking.oap.server.core.query.LogQueryService; +import org.apache.skywalking.oap.server.core.query.TagAutoCompleteQueryService; +import org.apache.skywalking.oap.server.core.query.input.Duration; +import org.apache.skywalking.oap.server.core.query.input.TraceScopeCondition; +import org.apache.skywalking.oap.server.core.query.type.Log; +import org.apache.skywalking.oap.server.core.query.type.Logs; +import org.apache.skywalking.oap.server.core.query.type.Pagination; +import org.apache.skywalking.oap.server.library.module.ModuleManager; +import org.apache.skywalking.oap.server.library.util.StringUtil; + +public class LogQLApiHandler { + + private final LogQueryService logQueryService; + private final TagAutoCompleteQueryService tagAutoCompleteQueryService; + private static final ObjectMapper MAPPER = new ObjectMapper(); + + public LogQLApiHandler(ModuleManager moduleManager) { + this.logQueryService = moduleManager.find(CoreModule.NAME) + .provider() + .getService(LogQueryService.class); + this.tagAutoCompleteQueryService = moduleManager.find(CoreModule.NAME) + .provider() + .getService(TagAutoCompleteQueryService.class); + } + + @Get + @Path("/loki/api/v1/labels") + public HttpResponse labels( + @Param("start") Long start, + @Param("end") Long end) throws IOException { + LabelsQueryRsp labelsQueryRsp = new LabelsQueryRsp(); + labelsQueryRsp.setStatus(ResultStatus.SUCCESS); + + Duration duration = DurationUtils.timestamp2Duration(nano2Millis(start), nano2Millis(end)); + tagAutoCompleteQueryService.queryTagAutocompleteKeys(TagType.LOG, duration) + .forEach(tag -> labelsQueryRsp.getData().add(tag)); + + return successResponse(labelsQueryRsp); + } + + @Get + @Path("/loki/api/v1/label/{label_name}/values") + public HttpResponse labelValues( + @Param("label_name") String labelName, + @Param("start") Long start, + @Param("end") Long end) throws IOException { + LabelValuesQueryRsp response = new LabelValuesQueryRsp(); + response.setStatus(ResultStatus.SUCCESS); + + Duration duration = DurationUtils.timestamp2Duration(nano2Millis(start), nano2Millis(end)); + tagAutoCompleteQueryService.queryTagAutocompleteValues(TagType.LOG, labelName, duration) + .forEach(value -> response.getData().add(value)); + + return successResponse(response); + } + + @Get + @Path("/loki/api/v1/query_range") + public HttpResponse rangeQuery( + @Param("start") Long start, + @Param("end") Long end, + @Param("query") String query, + @Param("limit") Integer limit, + @Param("direction") LogDirection direction) throws IOException { + LogRangeQueryRsp logRangeQueryRsp = new LogRangeQueryRsp(); + logRangeQueryRsp.setStatus(ResultStatus.SUCCESS); + + LogQLLexer lexer = new LogQLLexer(CharStreams.fromString(query)); + lexer.addErrorListener(new ParseErrorListener()); + LogQLParser parser = new LogQLParser(new CommonTokenStream(lexer)); + parser.addErrorListener(new ParseErrorListener()); + ParseTree tree; + try { + tree = parser.root(); + } catch (ParseCancellationException e) { + return badResponse(e.getMessage()); + } + + LogQLExprVisitor visitor = new LogQLExprVisitor(); + LogQLParseResult parseResult = visitor.visit(tree); + Map<String, String> labelMap = parseResult.getLabelMap(); + + String serviceId = labelMap.containsKey(LabelName.SERVICE.getLabel()) ? + IDManager.ServiceID.buildId(labelMap.get(LabelName.SERVICE.getLabel()), true) : null; + String serviceInstanceId = labelMap.containsKey(LabelName.SERVICE_INSTANCE.getLabel()) ? + IDManager.ServiceInstanceID.buildId(serviceId, labelMap.get(LabelName.SERVICE_INSTANCE.getLabel())) : null; + String endpointId = labelMap.containsKey(LabelName.ENDPOINT.getLabel()) ? + IDManager.EndpointID.buildId(serviceId, labelMap.get(LabelName.ENDPOINT.getLabel())) : null; Review Comment: Ok, thanks. I will add a check. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
