| /** |
| * 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.log4j2.appender; |
| |
| import java.util.Objects; |
| import java.util.concurrent.TimeUnit; |
| import java.util.function.Supplier; |
| |
| import org.apache.logging.log4j.core.LoggerContext; |
| import org.apache.logging.log4j.core.appender.AbstractManager; |
| import org.apache.logging.log4j.core.config.Property; |
| import org.apache.pulsar.client.api.ClientBuilder; |
| import org.apache.pulsar.client.api.Producer; |
| import org.apache.pulsar.client.api.ProducerBuilder; |
| import org.apache.pulsar.client.api.PulsarClient; |
| import org.apache.pulsar.client.api.PulsarClientException; |
| import org.apache.pulsar.client.api.TypedMessageBuilder; |
| |
| public class PulsarManager extends AbstractManager { |
| |
| static Supplier<ClientBuilder> PULSAR_CLIENT_BUILDER = PulsarClient::builder; |
| |
| private PulsarClient client; |
| private Producer<byte[]> producer; |
| |
| private final String serviceUrl; |
| private final String topic; |
| private final String key; |
| private final boolean syncSend; |
| |
| public PulsarManager(final LoggerContext loggerContext, |
| final String name, |
| final String serviceUrl, |
| final String topic, |
| final boolean syncSend, |
| final Property[] properties, |
| final String key) { |
| super(loggerContext, name); |
| this.serviceUrl = Objects.requireNonNull(serviceUrl, "serviceUrl"); |
| this.topic = Objects.requireNonNull(topic, "topic"); |
| this.syncSend = syncSend; |
| this.key = key; |
| } |
| |
| @Override |
| public boolean releaseSub(final long timeout, final TimeUnit timeUnit) { |
| if (producer != null) { |
| try { |
| producer.closeAsync().get(timeout, timeUnit); |
| } catch (Exception e) { |
| // exceptions on closing |
| LOGGER.warn("Failed to close producer within {} milliseconds", |
| timeUnit.toMillis(timeout), e); |
| } |
| } |
| return true; |
| } |
| |
| public void send(final byte[] msg) { |
| if (producer != null) { |
| String newKey = null; |
| |
| if(key != null && key.contains("${")) { |
| newKey = getLoggerContext().getConfiguration().getStrSubstitutor().replace(key); |
| } else if (key != null) { |
| newKey = key; |
| } |
| |
| |
| TypedMessageBuilder<byte[]> messageBuilder = producer.newMessage() |
| .value(msg); |
| |
| if (newKey != null) { |
| messageBuilder.key(newKey); |
| } |
| |
| if (syncSend) { |
| try { |
| messageBuilder.send(); |
| } catch (PulsarClientException e) { |
| LOGGER.error("Unable to write to Pulsar in appender [" + getName() + "]", e); |
| } |
| } else { |
| messageBuilder.sendAsync() |
| .exceptionally(cause -> { |
| LOGGER.error("Unable to write to Pulsar in appender [" + getName() + "]", cause); |
| return null; |
| }); |
| } |
| } |
| } |
| |
| public void startup() throws Exception { |
| try { |
| client = PULSAR_CLIENT_BUILDER.get() |
| .serviceUrl(serviceUrl) |
| .build(); |
| ProducerBuilder<byte[]> producerBuilder = client.newProducer() |
| .topic(topic) |
| .producerName("pulsar-log4j2-appender-" + topic) |
| .blockIfQueueFull(false); |
| if (syncSend) { |
| // disable batching for sync send |
| producerBuilder = producerBuilder.enableBatching(false); |
| } else { |
| // enable batching in 10 ms for async send |
| producerBuilder = producerBuilder |
| .enableBatching(true) |
| .batchingMaxPublishDelay(10, TimeUnit.MILLISECONDS); |
| } |
| producer = producerBuilder.create(); |
| } catch (Exception t) { |
| LOGGER.error("Failed to start pulsar manager", t); |
| throw t; |
| } |
| } |
| |
| public String getServiceUrl() { |
| return serviceUrl; |
| } |
| |
| public String getTopic() { |
| return topic; |
| } |
| |
| } |