| /** |
| * 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.pulsar.broker.intercept; |
| |
| import io.netty.buffer.ByteBuf; |
| import java.io.IOException; |
| import java.util.Map; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import lombok.Data; |
| import lombok.RequiredArgsConstructor; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.bookkeeper.mledger.Entry; |
| import org.apache.pulsar.broker.ClassLoaderSwitcher; |
| import org.apache.pulsar.broker.PulsarService; |
| import org.apache.pulsar.broker.service.Consumer; |
| import org.apache.pulsar.broker.service.Producer; |
| import org.apache.pulsar.broker.service.ServerCnx; |
| import org.apache.pulsar.broker.service.Subscription; |
| import org.apache.pulsar.broker.service.Topic; |
| import org.apache.pulsar.common.api.proto.BaseCommand; |
| import org.apache.pulsar.common.api.proto.CommandAck; |
| import org.apache.pulsar.common.api.proto.MessageMetadata; |
| import org.apache.pulsar.common.intercept.InterceptException; |
| import org.apache.pulsar.common.nar.NarClassLoader; |
| |
| /** |
| * A broker interceptor with it's classloader. |
| */ |
| @Slf4j |
| @Data |
| @RequiredArgsConstructor |
| public class BrokerInterceptorWithClassLoader implements BrokerInterceptor { |
| |
| private final BrokerInterceptor interceptor; |
| private final NarClassLoader classLoader; |
| |
| @Override |
| public void beforeSendMessage(Subscription subscription, |
| Entry entry, |
| long[] ackSet, |
| MessageMetadata msgMetadata) { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.beforeSendMessage( |
| subscription, entry, ackSet, msgMetadata); |
| } |
| } |
| |
| @Override |
| public void producerCreated(ServerCnx cnx, Producer producer, |
| Map<String, String> metadata){ |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.producerCreated(cnx, producer, metadata); |
| } |
| } |
| |
| @Override |
| public void consumerCreated(ServerCnx cnx, |
| Consumer consumer, |
| Map<String, String> metadata) { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.consumerCreated( |
| cnx, consumer, metadata); |
| } |
| } |
| |
| @Override |
| public void messageProduced(ServerCnx cnx, Producer producer, long startTimeNs, long ledgerId, |
| long entryId, Topic.PublishContext publishContext) { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.messageProduced(cnx, producer, startTimeNs, ledgerId, entryId, publishContext); |
| } |
| } |
| |
| @Override |
| public void messageDispatched(ServerCnx cnx, Consumer consumer, long ledgerId, |
| long entryId, ByteBuf headersAndPayload) { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.messageDispatched(cnx, consumer, ledgerId, entryId, headersAndPayload); |
| } |
| } |
| |
| @Override |
| public void messageAcked(ServerCnx cnx, Consumer consumer, |
| CommandAck ackCmd) { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.messageAcked(cnx, consumer, ackCmd); |
| } |
| } |
| |
| @Override |
| public void onConnectionCreated(ServerCnx cnx) { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.onConnectionCreated(cnx); |
| } |
| } |
| |
| @Override |
| public void onPulsarCommand(BaseCommand command, ServerCnx cnx) throws InterceptException { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.onPulsarCommand(command, cnx); |
| } |
| } |
| |
| @Override |
| public void onConnectionClosed(ServerCnx cnx) { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.onConnectionClosed(cnx); |
| } |
| } |
| |
| @Override |
| public void onWebserviceRequest(ServletRequest request) throws IOException, ServletException, InterceptException { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.onWebserviceRequest(request); |
| } |
| } |
| |
| @Override |
| public void onWebserviceResponse(ServletRequest request, ServletResponse response) |
| throws IOException, ServletException { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.onWebserviceResponse(request, response); |
| } |
| } |
| |
| @Override |
| public void initialize(PulsarService pulsarService) throws Exception { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| this.interceptor.initialize(pulsarService); |
| } |
| } |
| |
| @Override |
| public void close() { |
| try (ClassLoaderSwitcher ignored = new ClassLoaderSwitcher(classLoader)) { |
| interceptor.close(); |
| } |
| try { |
| classLoader.close(); |
| } catch (IOException e) { |
| log.warn("Failed to close the broker interceptor class loader", e); |
| } |
| } |
| } |