Github user kmeurer commented on a diff in the pull request:
https://github.com/apache/logging-log4j2/pull/206#discussion_r210275144
--- Diff:
log4j-redis/src/main/java/org/apache/logging/log4j/redis/appender/RedisAppender.java
---
@@ -0,0 +1,243 @@
+/*
+ * 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.logging.log4j.redis.appender;
+
+import org.apache.logging.log4j.core.*;
+import org.apache.logging.log4j.core.appender.AbstractAppender;
+import org.apache.logging.log4j.core.appender.AppenderLoggingException;
+import org.apache.logging.log4j.core.config.Node;
+import org.apache.logging.log4j.core.config.plugins.Plugin;
+import org.apache.logging.log4j.core.config.plugins.PluginBuilderAttribute;
+import org.apache.logging.log4j.core.config.plugins.PluginBuilderFactory;
+import org.apache.logging.log4j.core.config.plugins.PluginElement;
+import
org.apache.logging.log4j.core.config.plugins.validation.constraints.Required;
+import org.apache.logging.log4j.core.net.ssl.SslConfiguration;
+import org.apache.logging.log4j.spi.AbstractLogger;
+
+import java.io.Serializable;
+import java.util.Objects;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Sends log events to a Redis Queue. All logs are appended to Redis lists
via the RPUSH command.
+ */
+@Plugin(name = "Redis", category = Node.CATEGORY, elementType =
Appender.ELEMENT_TYPE, printObject = true)
+public final class RedisAppender extends AbstractAppender {
+
+ private final RedisManager manager;
+ private final LinkedBlockingQueue<String> logQueue;
+ private final boolean immediateFlush;
+ private final int queueCapacity;
+
+ private RedisAppender(final String name, final Layout<? extends
Serializable> layout, final Filter filter,
+ final boolean ignoreExceptions, boolean
immediateFlush, final int queueCapacity, final RedisManager manager) {
+ super(name, filter, layout, ignoreExceptions);
+ this.manager = Objects.requireNonNull(manager, "Redis Manager");
+ this.immediateFlush = immediateFlush;
+ this.queueCapacity = queueCapacity;
+ this.logQueue = new LinkedBlockingQueue<>(queueCapacity);
+ }
+
+ /**
+ * Builds RedisAppender instances.
+ * @param <B> The type to build
+ */
+ public static class Builder<B extends Builder<B>> extends
AbstractAppender.Builder<B>
+ implements
org.apache.logging.log4j.core.util.Builder<RedisAppender> {
+
+ private final String KEY_SEPARATOR = ",";
+
+ @PluginBuilderAttribute("host")
+ @Required(message = "No Redis hostname provided")
+ private String host;
+
+ @PluginBuilderAttribute("keys")
+ private String keys = "";
+
+ @PluginBuilderAttribute("port")
+ private int port = 6379;
--- End diff --
Jedis doesn't expose the default value for port nor offer good constructors
to exclude it (i.e. you can't exclude port and provide an SSLConfig). Redis is
unlikely to change their default port, though, so this seems pretty safe.
---
