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[Optimize] Optimize doc and CI bash, Refactoring OALRuntime
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135
oap-server/oal-rt/src/main/java/org/apache/skywalking/oal/rt/OALKernel.java
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| /* | ||
| * 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. | ||
| * | ||
| */ | ||
|
|
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| package org.apache.skywalking.oal.rt; | ||
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| import lombok.extern.slf4j.Slf4j; | ||
| import org.apache.skywalking.oal.rt.parser.OALScripts; | ||
| import org.apache.skywalking.oal.rt.parser.ScriptParser; | ||
| import org.apache.skywalking.oal.rt.util.OALClassGenerator; | ||
| import org.apache.skywalking.oap.server.core.analysis.DispatcherDetectorListener; | ||
| import org.apache.skywalking.oap.server.core.analysis.StreamAnnotationListener; | ||
| import org.apache.skywalking.oap.server.core.oal.rt.OALCompileException; | ||
| import org.apache.skywalking.oap.server.core.oal.rt.OALDefine; | ||
| import org.apache.skywalking.oap.server.core.oal.rt.OALEngine; | ||
| import org.apache.skywalking.oap.server.core.storage.StorageBuilderFactory; | ||
| import org.apache.skywalking.oap.server.core.storage.StorageException; | ||
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| import org.apache.skywalking.oap.server.library.module.ModuleStartException; | ||
| import org.apache.skywalking.oap.server.library.util.ResourceUtils; | ||
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| import java.io.FileNotFoundException; | ||
| import java.io.IOException; | ||
| import java.io.Reader; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| /** | ||
| * OAL Runtime is the class generation engine, which load the generated classes from OAL scrip definitions. This runtime | ||
| * is loaded dynamically. | ||
| */ | ||
| @Slf4j | ||
| public class OALKernel implements OALEngine { | ||
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| private static boolean IS_RT_TEMP_FOLDER_INIT_COMPLETED = false; | ||
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| private OALClassGenerator oalClassGenerator; | ||
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| private StreamAnnotationListener streamAnnotationListener; | ||
| private DispatcherDetectorListener dispatcherDetectorListener; | ||
| private final List<Class> metricsClasses; | ||
| private final List<Class> dispatcherClasses; | ||
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| private final OALDefine oalDefine; | ||
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| public OALKernel(OALDefine define) { | ||
| oalDefine = define; | ||
| metricsClasses = new ArrayList<>(); | ||
| dispatcherClasses = new ArrayList<>(); | ||
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| oalClassGenerator = new OALClassGenerator(define); | ||
| } | ||
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| @Override | ||
| public void setStreamListener(StreamAnnotationListener listener) throws ModuleStartException { | ||
| this.streamAnnotationListener = listener; | ||
| } | ||
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| @Override | ||
| public void setDispatcherListener(DispatcherDetectorListener listener) throws ModuleStartException { | ||
| dispatcherDetectorListener = listener; | ||
| } | ||
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| @Override | ||
| public void setStorageBuilderFactory(final StorageBuilderFactory factory) { | ||
| oalClassGenerator.setStorageBuilderFactory(factory); | ||
| } | ||
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| @Override | ||
| public void start(ClassLoader currentClassLoader) throws ModuleStartException, OALCompileException { | ||
| if (!IS_RT_TEMP_FOLDER_INIT_COMPLETED) { | ||
| oalClassGenerator.prepareRTTempFolder(); | ||
| IS_RT_TEMP_FOLDER_INIT_COMPLETED = true; | ||
| } | ||
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| Reader read; | ||
| oalClassGenerator.setCurrentClassLoader(currentClassLoader); | ||
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| try { | ||
| read = ResourceUtils.read(oalDefine.getConfigFile()); | ||
| } catch (FileNotFoundException e) { | ||
| throw new ModuleStartException("Can't locate " + oalDefine.getConfigFile(), e); | ||
| } | ||
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| OALScripts oalScripts; | ||
| try { | ||
| ScriptParser scriptParser = ScriptParser.createFromFile(read, oalDefine.getSourcePackage()); | ||
| oalScripts = scriptParser.parse(); | ||
| } catch (IOException e) { | ||
| throw new ModuleStartException("OAL script parse analysis failure.", e); | ||
| } | ||
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| oalClassGenerator.generateClassAtRuntime(oalScripts, metricsClasses, dispatcherClasses); | ||
| } | ||
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| @Override | ||
| public void notifyAllListeners() throws ModuleStartException { | ||
| for (Class metricsClass : metricsClasses) { | ||
| try { | ||
| streamAnnotationListener.notify(metricsClass); | ||
| } catch (StorageException e) { | ||
| throw new ModuleStartException(e.getMessage(), e); | ||
| } | ||
| } | ||
| for (Class dispatcherClass : dispatcherClasses) { | ||
| try { | ||
| dispatcherDetectorListener.addIfAsSourceDispatcher(dispatcherClass); | ||
| } catch (Exception e) { | ||
| throw new ModuleStartException(e.getMessage(), e); | ||
| } | ||
| } | ||
| } | ||
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| protected List<Class> getMetricsClasses() { | ||
| return metricsClasses; | ||
| } | ||
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| protected List<Class> getDispatcherClasses() { | ||
| return dispatcherClasses; | ||
| } | ||
| } |
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