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Added DeleteComnmand as well as tested & fixed what we found. (#104)
Co-authored-by: Ziad Othman <ziadsadek999@gmail.com> Co-authored-by: Elshimaa Betah <79271594+ShimaaBetah@users.noreply.github.com>
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May 18, 2024
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125 changes: 114 additions & 11 deletions
125
services/contracts/src/main/java/com/workup/contracts/ControllerMQListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,35 +1,138 @@ | ||
| package com.workup.contracts; | ||
|
|
||
| import com.workup.contracts.commands.ContractCommand; | ||
| import com.workup.contracts.commands.ContractCommandMap; | ||
| import com.workup.shared.commands.Command; | ||
| import com.workup.shared.commands.CommandRequest; | ||
| import com.workup.shared.commands.CommandResponse; | ||
| import com.workup.shared.commands.controller.ContinueRequest; | ||
| import com.workup.shared.commands.controller.DeleteCommandRequest; | ||
| import com.workup.shared.commands.controller.FreezeRequest; | ||
| import com.workup.shared.commands.controller.SetLoggingLevelRequest; | ||
| import com.workup.shared.commands.controller.SetMaxThreadsRequest; | ||
| import java.lang.reflect.Field; | ||
| import com.workup.shared.commands.controller.UpdateCommandRequest; | ||
| import com.workup.shared.enums.ServiceQueueNames; | ||
| import com.workup.shared.enums.ThreadPoolSize; | ||
| import org.apache.logging.log4j.Level; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.apache.logging.log4j.core.config.Configurator; | ||
| import org.springframework.amqp.rabbit.annotation.RabbitHandler; | ||
| import org.springframework.amqp.rabbit.annotation.RabbitListener; | ||
| import org.springframework.amqp.rabbit.listener.RabbitListenerEndpointRegistry; | ||
| import org.springframework.beans.factory.annotation.Autowired; | ||
| import org.springframework.context.ApplicationContext; | ||
| import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor; | ||
| import org.springframework.stereotype.Service; | ||
|
|
||
| @Service | ||
| @RabbitListener(queues = "#{controllerQueue.name}") | ||
| @RabbitListener(queues = "#{controllerQueue.name}", id = "#{controllerQueue.name}") | ||
| public class ControllerMQListener { | ||
|
|
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| @Autowired public ContractCommandMap commandMap; | ||
| @Autowired public ThreadPoolTaskExecutor taskExecutor; | ||
|
|
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| @Autowired private ApplicationContext context; | ||
| @Autowired private RabbitListenerEndpointRegistry registry; | ||
|
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| @RabbitHandler | ||
| public void receive(SetMaxThreadsRequest in) throws Exception { | ||
| try { | ||
| ThreadPoolTaskExecutor myBean = context.getBean(ThreadPoolTaskExecutor.class); | ||
| Field maxPoolSize = ThreadPoolTaskExecutor.class.getDeclaredField("maxPoolSize"); | ||
| maxPoolSize.setAccessible(true); | ||
| maxPoolSize.set(myBean, in.getMaxThreads()); | ||
| Field corePoolSize = ThreadPoolTaskExecutor.class.getDeclaredField("corePoolSize"); | ||
| corePoolSize.setAccessible(true); | ||
| corePoolSize.set(myBean, in.getMaxThreads()); | ||
| System.out.println("Max threads is: " + taskExecutor.getMaxPoolSize()); | ||
| setThreads(in.getMaxThreads()); | ||
| ThreadPoolSize.POOL_SIZE = taskExecutor.getMaxPoolSize(); | ||
| System.out.println("Max threads set to: " + taskExecutor.getMaxPoolSize()); | ||
| } catch (Exception e) { | ||
| System.out.println(e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
|
||
| @RabbitHandler | ||
| public void receive(SetLoggingLevelRequest in) throws Exception { | ||
| try { | ||
| Logger logger = LogManager.getLogger("com.workup.contracts"); | ||
| Configurator.setAllLevels(logger.getName(), Level.valueOf(in.getLevel())); | ||
| System.out.println("Logging level set to: " + in.getLevel()); | ||
| } catch (Exception e) { | ||
| System.out.println(e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
|
||
| @RabbitHandler | ||
| public void receive(FreezeRequest in) throws Exception { | ||
| try { | ||
| registry.getListenerContainer(ServiceQueueNames.CONTRACTS).stop(); | ||
| setThreads(1); | ||
| System.out.println("Stopped all threads."); | ||
| } catch (Exception e) { | ||
| System.out.println(e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
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||
| @RabbitHandler | ||
| public void receive(ContinueRequest in) throws Exception { | ||
| try { | ||
| registry.getListenerContainer(ServiceQueueNames.CONTRACTS).start(); | ||
| setThreads(ThreadPoolSize.POOL_SIZE); | ||
| System.out.println("Continued all threads."); | ||
| } catch (Exception e) { | ||
| System.out.println(e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
|
||
| @SuppressWarnings("unchecked") | ||
| @RabbitHandler | ||
| public void receive(UpdateCommandRequest in) throws Exception { | ||
| try { | ||
| byte[] byteArray = in.getByteCode(); | ||
| Class<?> clazz = | ||
| (Class<?>) | ||
| (new MyClassLoader(this.getClass().getClassLoader()) | ||
| .loadClass(byteArray, in.getClassName())); | ||
|
|
||
| commandMap.replaceCommand( | ||
| in.getCommandName(), | ||
| (Class<? extends ContractCommand<? extends CommandRequest, ? extends CommandResponse>>) | ||
| ((Command<?, ?>) clazz.newInstance()).getClass()); | ||
|
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||
| System.out.println("Updated command: " + in.getCommandName()); | ||
| // clazz.newInstance().Run(null); | ||
| } catch (Exception e) { | ||
| System.out.println(e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
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||
| @RabbitHandler | ||
| public void receive(DeleteCommandRequest in) throws Exception { | ||
| try { | ||
| commandMap.removeCommand(in.getCommandName()); | ||
| System.out.println("Deleted command: " + in.getCommandName()); | ||
| } catch (Exception e) { | ||
| System.out.println(e.getMessage()); | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
|
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| static class MyClassLoader extends ClassLoader { | ||
| public MyClassLoader(ClassLoader classLoader) { | ||
| super(classLoader); | ||
| } | ||
|
|
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| public Class<?> loadClass(byte[] byteCode, String className) { | ||
| return defineClass(className, byteCode, 0, byteCode.length); | ||
| } | ||
| } | ||
|
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| private void setThreads(int threads) throws NoSuchFieldException, IllegalAccessException { | ||
| if (threads > taskExecutor.getCorePoolSize()) { | ||
| taskExecutor.setMaxPoolSize(threads); | ||
| taskExecutor.setCorePoolSize(threads); | ||
| } else { | ||
| taskExecutor.setCorePoolSize(threads); | ||
| taskExecutor.setMaxPoolSize(threads); | ||
| } | ||
| } | ||
| } |
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