| /* |
| * 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.server.core.query; |
| |
| import org.apache.skywalking.oap.server.core.query.input.Duration; |
| import org.apache.skywalking.oap.server.core.query.type.event.EventQueryCondition; |
| import org.apache.skywalking.oap.server.core.query.type.event.Events; |
| import org.apache.skywalking.oap.server.core.storage.StorageModule; |
| import org.apache.skywalking.oap.server.core.storage.query.IEventQueryDAO; |
| import org.apache.skywalking.oap.server.library.module.ModuleManager; |
| import org.apache.skywalking.oap.server.library.module.Service; |
| |
| import java.util.List; |
| import java.util.Objects; |
| |
| import static java.util.Objects.isNull; |
| import static org.apache.skywalking.oap.server.library.util.StringUtil.isBlank; |
| |
| public class EventQueryService implements Service { |
| |
| private final ModuleManager moduleManager; |
| |
| private IEventQueryDAO dao; |
| |
| public EventQueryService(ModuleManager moduleManager) { |
| this.moduleManager = moduleManager; |
| } |
| |
| private IEventQueryDAO getDao() { |
| if (dao == null) { |
| dao = moduleManager.find(StorageModule.NAME).provider().getService(IEventQueryDAO.class); |
| } |
| return dao; |
| } |
| |
| public Events queryEvents(final EventQueryCondition condition) throws Exception { |
| if (isBlank(condition.getUuid()) && isDurationInvalid(condition.getTime())) { |
| throw new IllegalArgumentException("time field is required when uuid is absent."); |
| } |
| return getDao().queryEvents(condition); |
| } |
| |
| public Events queryEvents(final List<EventQueryCondition> conditions) throws Exception { |
| EventQueryCondition condition = conditions.stream().filter(c -> isBlank(c.getUuid()) && isDurationInvalid(c.getTime())).findFirst().orElse(null); |
| if (Objects.nonNull(condition)) { |
| throw new IllegalArgumentException("time field is required when uuid is absent."); |
| } |
| return getDao().queryEvents(conditions); |
| } |
| |
| boolean isDurationInvalid(final Duration duration) { |
| return isNull(duration) || (isBlank(duration.getStart()) || isBlank(duration.getEnd())); |
| } |
| } |