| /* |
| * 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.nlpcraft.probe.mgrs.model |
| |
| import io.opencensus.trace.Span |
| import org.apache.nlpcraft.common._ |
| import org.apache.nlpcraft.common.ascii.NCAsciiTable |
| import org.apache.nlpcraft.model._ |
| import org.apache.nlpcraft.probe.mgrs.NCProbeModel |
| import org.apache.nlpcraft.probe.mgrs.deploy._ |
| |
| import scala.collection.convert.DecorateAsScala |
| import scala.util.control.Exception._ |
| |
| /** |
| * Model manager. |
| */ |
| object NCModelManager extends NCService with DecorateAsScala { |
| // Deployed models keyed by their IDs. |
| @volatile private var data: Map[String, NCProbeModel] = _ |
| |
| // Access mutex. |
| private final val mux = new Object() |
| |
| /** |
| * |
| * @param parent Optional parent span. |
| * @throws NCE |
| * @return |
| */ |
| @throws[NCE] |
| override def start(parent: Span = null): NCService = startScopedSpan("start", parent) { span ⇒ |
| val tbl = NCAsciiTable("Model ID", "Name", "Ver.", "Elements", "Synonyms", "Intents") |
| |
| mux.synchronized { |
| data = NCDeployManager.getModels.map(w ⇒ { |
| w.model.onInit() |
| |
| w.model.getId → w |
| }).toMap |
| |
| data.values.foreach(w ⇒ { |
| val mdl = w.model |
| |
| val synCnt = w.synonyms.values.flatMap(_.values).flatten.size |
| |
| tbl += ( |
| mdl.getId, |
| mdl.getName, |
| mdl.getVersion, |
| w.elements.keySet.size, |
| synCnt, |
| w.intents |
| .map(_.toDslString) |
| .flatMap(s ⇒ s.replaceAll(" term", "\n term").split("\n")) |
| ) |
| }) |
| } |
| |
| tbl.info(logger, Some(s"Models deployed: ${data.size}\n")) |
| |
| addTags( |
| span, |
| "deployedModels" → data.values.map(_.model.getId).mkString(",") |
| ) |
| |
| ackStart() |
| } |
| |
| /** |
| * Stops this component. |
| */ |
| override def stop(parent: Span = null): Unit = startScopedSpan("stop", parent) { _ ⇒ |
| mux.synchronized { |
| if (data != null) |
| data.values.foreach(m ⇒ discardModel(m.model)) |
| } |
| |
| ackStop() |
| } |
| |
| /** |
| * |
| * @param mdl |
| */ |
| private def discardModel(mdl: NCModel): Unit = { |
| require(Thread.holdsLock(mux)) |
| |
| ignoring(classOf[Throwable]) { |
| // Ack. |
| logger.info(s"Model discarded: ${mdl.getId}") |
| |
| mdl.onDiscard() |
| } |
| } |
| |
| /** |
| * |
| * @return |
| */ |
| def getAllModels(parent: Span = null): List[NCProbeModel] = |
| startScopedSpan("getAllModels", parent) { _ ⇒ |
| mux.synchronized { data.values.toList } |
| } |
| |
| /** |
| * |
| * @param mdlId Model ID. |
| */ |
| def getModelOpt(mdlId: String, parent: Span = null): Option[NCProbeModel] = |
| startScopedSpan("getModelOpt", parent, "mdlId" → mdlId) { _ ⇒ |
| mux.synchronized { data.get(mdlId) } |
| } |
| |
| /** |
| * |
| * @param mdlId Model ID. |
| */ |
| def getModel(mdlId: String, parent: Span = null): NCProbeModel = |
| getModelOpt(mdlId, parent).getOrElse(throw new NCE(s"Model not found: $mdlId")) |
| } |