Modified: websites/production/camel/content/netty.html ============================================================================== --- websites/production/camel/content/netty.html (original) +++ websites/production/camel/content/netty.html Fri May 29 07:21:08 2015 @@ -104,7 +104,7 @@ <script class="theme: Default; brush: java; gutter: false" type="syntaxhighlighter"><![CDATA[netty:tcp://localhost:99999[?options] netty:udp://remotehost:99999/[?options] ]]></script> -</div></div><p>This component supports producer and consumer endpoints for both TCP and UDP.</p><p>You can append query options to the URI in the following format, <code>?option=value&option=value&...</code></p><h3 id="Netty-Options">Options</h3><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Name</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Default Value</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keepAlive</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to ensure socket is not closed due to inactivity</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>tcpNoDelay</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to improve TCP protocol performance</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>backlog</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.6/2.10.4/2.11:</strong> Allows to configure a backlog for netty consumer (server). Note the backlog is just a best effort depending on the OS. Setting this option to a value such as <code>200</code>, <code>500</code> or <code>1000</code>, tells the TCP stack how long the "accept" queue can be. If this option is not configured, then the backlog depends on OS setting.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>broadcast</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to choose Multicast over UDP</p> </td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>connectTimeout</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>10000</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Time to wait for a socket connection to be available. Value is in millis.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>reuseAddress</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to facilitate socket multiplexing</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sync</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to set endpoint as one-way or request-response</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>synchronous</code></p></td><td colspan="1" rowspan="1" class ="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10:</strong> Whether <a shape="rect" href="asynchronous-routing-engine.html">Asynchronous Routing Engine</a> is not in use. <code>false</code> then the <a shape="rect" href="asynchronous-routing-engine.html">Asynchronous Routing Engine</a> is used, <code>true</code> to force processing synchronous.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>ssl</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to specify whether SSL encryption is applied to this endpoint</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sslClientCertHeaders</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> When enabled and in SSL mode, then the Netty consumer will enrich the Camel <a shape="rect" href="message.html">Message</a> with headers having information about the client certificate such as subject name, issuer name, serial number, and the valid date range.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sendBufferSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>65536 bytes</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The TCP/UDP buffer sizes to be used during outbound communication. Size is bytes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>receiveBufferSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>65536 bytes</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The TCP/UDP buffer sizes to be used during inbound communication. Size is bytes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>option.XXX</code></p></td><t d colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11/2.10.4:</strong> Allows to configure additional netty options using "option." as prefix. For example "option.child.keepAlive=false" to set the netty option "child.keepAlive=false". See the Netty documentation for possible options that can be used.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>corePoolSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>10</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The number of allocated threads at component startup. Defaults to 10. <strong>Note:</strong> This option is removed from Camel 2.9.2 onwards. As we rely on Nettys default settings.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maxPoolSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>100</code></p></td><td colspan ="1" rowspan="1" class="confluenceTd"><p>The maximum number of threads that may be allocated to this endpoint. Defaults to 100. <strong>Note:</strong> This option is removed from Camel 2.9.2 onwards. As we rely on Nettys default settings.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>disconnect</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Whether or not to disconnect(close) from Netty Channel right after use. Can be used for both consumer and producer.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>lazyChannelCreation</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Channels can be lazily created to avoid exceptions, if the remote server is not up and running when the Camel producer is started.</p></td></tr><tr><td colspan="1" rowspa n="1" class="confluenceTd"><p><code>transferExchange</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Only used for TCP. You can transfer the exchange over the wire instead of just the body. The following fields are transferred: In body, Out body, fault body, In headers, Out headers, fault headers, exchange properties, exchange exception. This requires that the objects are serializable. Camel will exclude any non-serializable objects and log it at WARN level.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>disconnectOnNoReply</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If sync is enabled then this option dictates NettyConsumer if it should disconnect where there is no reply to send back.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code> noReplyLogLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>WARN</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If sync is enabled this option dictates NettyConsumer which logging level to use when logging a there is no reply to send back. Values are: <code>FATAL, ERROR, INFO, DEBUG, OFF</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>serverExceptionCaughtLogLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>WARN</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> If the server (NettyConsumer) catches an exception then its logged using this logging level.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>serverClosedChannelExceptionCaughtLogLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>DEBUG</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> If the server (NettyConsumer) catches an <code>java.nio.channels.ClosedChannelException</code> then its logged using this logging level. This is used to avoid logging the closed channel exceptions, as clients can disconnect abruptly and then cause a flod of closed exceptions in the Netty server.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>allowDefaultCodec</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> The netty component installs a default codec if both, encoder/deocder is null and textline is false. Setting allowDefaultCodec to false prevents the netty component from installing a default codec as the first element in the filter chain.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>textline</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td ><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel >2.4:</strong> Only used for TCP. If no codec is specified, you can use this >flag to indicate a text line based codec; if not specified or the value is >false, then Object Serialization is assumed over TCP.</p></td></tr><tr><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>delimiter</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><code>LINE</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> The delimiter >to use for the textline codec. Possible values are <code>LINE</code> and ><code>NULL</code>.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>decoderMaxLineLength</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><code>1024</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> >The max line length to use for the textline codec.</p></td></tr><tr><td >colspan="1" rowspan= "1" class="confluenceTd"><p><code>autoAppendDelimiter</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> Whether or not to auto append missing end delimiter when sending using the textline codec.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>encoding</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> The encoding (a charset name) to use for the textline codec. If not provided, Camel will use the JVM default Charset.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>workerCount</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> When netty works on nio mode, it uses defaul t workerCount parameter from Netty, which is cpu_core_threads*2. User can use this operation to override the default workerCount from Netty</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sslContextParameters</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> SSL configuration using an <code>org.apache.camel.util.jsse.SSLContextParameters</code> instance. See <a shape="rect" href="#Netty-UsingtheJSSEConfigurationUtility">Using the JSSE Configuration Utility</a>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>receiveBufferSizePredictor</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> Configures the buffer size predictor. See details at Jetty documentation and this <a shape="rect" class="e xternal-link" href="http://lists.jboss.org/pipermail/netty-users/2010-January/001958.html"; rel="nofollow">mail thread</a>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>requestTimeout</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>0</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> Allows to use a timeout for the Netty producer when calling a remote server. By default no timeout is in use. The value is in milli seconds, so eg <code>30000</code> is 30 seconds. The requestTimeout is using Netty's <span>ReadTimeoutHandler to trigger the timeout.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>needClientAuth</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> Configures whether the server needs client authentication when using SSL. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>orderedThreadPoolExecutor</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.2:</strong> Whether to use ordered thread pool, to ensure events are processed orderly on the same channel. See details at the netty javadoc of <code>org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor</code> for more details.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maximumPoolSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>16</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.2:</strong> The core pool size for the ordered thread pool, if its in use.</p><p><strong>Since Camel 2.14.1</strong>: This option is move the NettyComponent.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code >producerPoolEnabled</code></p></td><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" >class="confluenceTd"><p><strong>Camel 2.10.4/Camel 2.11:</strong> Producer >only. Whether producer pool is enabled or not. <strong>Important:</strong> Do >not turn this off, as the pooling is needed for handling concurrency and >reliable request/reply.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>producerPoolMaxActive</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><code>-1</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel >2.10.3:</strong> Producer only. Sets the cap on the number of objects that >can be allocated by the pool (checked out to clients, or idle awaiting >checkout) at a given time. Use a negative value for no >limit.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>producerPoolMinIdle</code></p></td><td >colspan="1" rowspan="1" class ="confluenceTd"><p><code>0</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.3:</strong> Producer only. Sets the minimum number of instances allowed in the producer pool before the evictor thread (if active) spawns new objects.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>producerPoolMaxIdle</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>100</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.3:</strong> Producer only. Sets the cap on the number of "idle" instances in the pool.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>producerPoolMinEvictableIdle</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>30000</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.3:</strong> Producer only. Sets the minimum amount of time (value in millis) an object may sit idle in the pool before it is eligible for eviction by the idle object evictor.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>bootstrapConfiguration</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> Consumer only. Allows to configure the Netty ServerBootstrap options using a <code>org.apache.camel.component.netty.NettyServerBootstrapConfiguration</code> instance. This can be used to reuse the same configuration for multiple consumers, to align their configuration more easily.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>bossPoll</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> To use a explicit <code>org.jboss.netty.channel.socket.nio.BossPool</code> as the boss thread pool. For example to share a thread pool with multiple consumers. By default each consumer has their own boss pool with 1 core thread.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>workerPool</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> To use a explicit <code>org.jboss.netty.channel.socket.nio.WorkerPool</code> as the worker thread pool. For example to share a thread pool with multiple consumers. By default each consumer has their own worker pool with 2 x cpu count core threads.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>networkInterface</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> Consumer only. When using UDP then this option can be used to specify a network interface by its name, such as <code>eth0</ code> to join a multicast group.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>udpConnectionlessSending</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.15:</strong> Producer only.  This option supports connection less udp sending which is a real fire and forget. A connected udp send receive the PortUnreachableException if no one is listen on the receiving port.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>clientMode</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.15:</strong> Consumer only. If the <code>clientMode</code> is true, netty consumer will connect the address as a TCP client.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>useChannelBuffer</code></td><td colspan="1" rowspan="1" class ="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.16:</strong> Producer only. If the <code><span>useChannelBuffer</span></code> is true, netty producer will turn the message body into channelBuffer before sending it out.</td></tr></tbody></table></div></div><h3 id="Netty-RegistrybasedOptions">Registry based Options</h3><p>Codec Handlers and SSL Keystores can be enlisted in the <a shape="rect" href="registry.html">Registry</a>, such as in the Spring XML file.<br clear="none"> The values that could be passed in, are the following:</p><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Name</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>passphrase</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>password setting to use in order to encrypt/decrypt payloads sent using SSH</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keyStoreFormat</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>keystore format to be used for payload encryption. Defaults to "JKS" if not set</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>securityProvider</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Security provider to be used for payload encryption. Defaults to "SunX509" if not set.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keyStoreFile</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>deprecated:</strong> Client side certificate keystore to be used for encryption</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>trustStoreFile</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>deprecated:</strong> Server side certificate keystore to be used for encryption</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keyStoreResource</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> Client side certificate keystore to be used for encryption. Is loaded by default from classpath, but you can prefix with <code>"classpath:"</code>, <code>"file:"</code>, or <code>"http:"</code> to load the resource from different systems.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>trustStoreResource</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> Server side certificate keystore to be used for encryption. Is loaded by default from classpath, but you can prefix with <code>"classpath:"</code>, <code>"file:"</code>, or <code>"http:"</code> to load the resource from different systems.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sslHandler</code></p></td><td colsp an="1" rowspan="1" class="confluenceTd"><p>Reference to a class that could be used to return an SSL Handler</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>encoder</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>A custom <code>ChannelHandler</code> class that can be used to perform special marshalling of outbound payloads. Must override <code>org.jboss.netty.channel.ChannelDownStreamHandler</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>encorders</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>A list of encoders to be used. You can use a String which have values separated by comma, and have the values be looked up in the <a shape="rect" href="registry.html">Registry</a>. Just remember to prefix the value with # so Camel knows it should lookup.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>decoder</code></p></td><td colspan="1" rowspan="1" class="confluenc eTd"><p>A custom <code>ChannelHandler</code> class that can be used to perform special marshalling of inbound payloads. Must override <code>org.jboss.netty.channel.ChannelUpStreamHandler</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>decoders</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>A list of decoders to be used. You can use a String which have values separated by comma, and have the values be looked up in the <a shape="rect" href="registry.html">Registry</a>. Just remember to prefix the value with # so Camel knows it should lookup.</p></td></tr></tbody></table></div></div><p><strong>Important:</strong> Read below about using non shareable encoders/decoders.</p><h4 id="Netty-Usingnonshareableencodersordecoders">Using non shareable encoders or decoders</h4><p>If your encoders or decoders is not shareable (eg they have the @Shareable class annotation), then your encoder/decoder must implement the <code>org.apache.camel.comp onent.netty.ChannelHandlerFactory</code> interface, and return a new instance in the <code>newChannelHandler</code> method. This is to ensure the encoder/decoder can safely be used. If this is not the case, then the Netty component will log a WARN when<br clear="none"> an endpoint is created.</p><p>The Netty component offers a <code>org.apache.camel.component.netty.ChannelHandlerFactories</code> factory class, that has a number of commonly used methods.</p><h3 id="Netty-SendingMessagesto/fromaNettyendpoint">Sending Messages to/from a Netty endpoint</h3><h4 id="Netty-NettyProducer">Netty Producer</h4><p>In Producer mode, the component provides the ability to send payloads to a socket endpoint<br clear="none"> using either TCP or UDP protocols (with optional SSL support).</p><p>The producer mode supports both one-way and request-response based operations.</p><h4 id="Netty-NettyConsumer">Netty Consumer</h4><p>In Consumer mode, the component provides the ability to:</p><ul class="altern ate"><li>listen on a specified socket using either TCP or UDP protocols (with optional SSL support),</li><li>receive requests on the socket using text/xml, binary and serialized object based payloads and</li><li>send them along on a route as message exchanges.</li></ul><p>The consumer mode supports both one-way and request-response based operations.</p><p> </p><h3 id="Netty-Headers">Headers</h3><p>The following headers are filled for the exchanges created by the Netty consumer:</p><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Header key</p></th><th colspan="1" rowspan="1" class="confluenceTh">Class</th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>NettyConstants.NETTY_CHANNEL_HANDLER_CONTEXT</code> / <code>CamelNettyChannelHandlerContext</code></p></td><td colspan="1" rowspan="1" cl ass="confluenceTd"><code>org.jboss.netty.channel.ChannelHandlerContext</code></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code><span>ChannelHandlerContext </span></code>instance associated with the connection received by netty.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>NettyConstants.NETTY_MESSAGE_EVENT</code> / <code>CamelNettyMessageEvent</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code><span>org.jboss.netty.channel.</span>MessageEvent</code></td><td colspan="1" rowspan="1" class="confluenceTd"><p><span><code><span>MessageEvent </span></code>instance associated with the connection received by netty.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>NettyConstants.NETTY_REMOTE_ADDRESS</code> / <code>CamelNettyRemoteAddress</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code>java.net.SocketAddress</code></td><td colspan="1" rowspan="1" class="confluenceTd">Remote addr ess of the incoming socket connection.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>NettyConstants.NETTY_LOCAL_ADDRESS</code> / <code>CamelNettyLocalAddress</code></td><td colspan="1" rowspan="1" class="confluenceTd"><code><span>java.net.</span><span>SocketAddress</span></code></td><td colspan="1" rowspan="1" class="confluenceTd"><span>Local address of the incoming socket connection.</span></td></tr></tbody></table></div></div><h3 id="Netty-UsageSamples">Usage Samples</h3><h4 id="Netty-AUDPNettyendpointusingRequest-Replyandserializedobjectpayload">A UDP Netty endpoint using Request-Reply and serialized object payload</h4><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl"> +</div></div><p>This component supports producer and consumer endpoints for both TCP and UDP.</p><p>You can append query options to the URI in the following format, <code>?option=value&option=value&...</code></p><h3 id="Netty-Options">Options</h3><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Name</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Default Value</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keepAlive</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to ensure socket is not closed due to inactivity</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>tcpNoDelay</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> <code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to improve TCP protocol performance</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>backlog</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p> </p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9.6/2.10.4/2.11:</strong> Allows to configure a backlog for netty consumer (server). Note the backlog is just a best effort depending on the OS. Setting this option to a value such as <code>200</code>, <code>500</code> or <code>1000</code>, tells the TCP stack how long the "accept" queue can be. If this option is not configured, then the backlog depends on OS setting.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>broadcast</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to choose Multicast over UDP</p> </td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>connectTimeout</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>10000</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Time to wait for a socket connection to be available. Value is in millis.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>reuseAddress</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to facilitate socket multiplexing</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sync</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to set endpoint as one-way or request-response</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>synchronous</code></p></td><td colspan="1" rowspan="1" class ="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10:</strong> Whether <a shape="rect" href="asynchronous-routing-engine.html">Asynchronous Routing Engine</a> is not in use. <code>false</code> then the <a shape="rect" href="asynchronous-routing-engine.html">Asynchronous Routing Engine</a> is used, <code>true</code> to force processing synchronous.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>ssl</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Setting to specify whether SSL encryption is applied to this endpoint</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sslClientCertHeaders</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> When enabled and in SSL mode, then the Netty consumer will enrich the Camel <a shape="rect" href="message.html">Message</a> with headers having information about the client certificate such as subject name, issuer name, serial number, and the valid date range.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sendBufferSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>65536 bytes</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The TCP/UDP buffer sizes to be used during outbound communication. Size is bytes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>receiveBufferSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>65536 bytes</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The TCP/UDP buffer sizes to be used during inbound communication. Size is bytes.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>option.XXX</code></p></td><t d colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11/2.10.4:</strong> Allows to configure additional netty options using "option." as prefix. For example "option.child.keepAlive=false" to set the netty option "child.keepAlive=false". See the Netty documentation for possible options that can be used.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>corePoolSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>10</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>The number of allocated threads at component startup. Defaults to 10. <strong>Note:</strong> This option is removed from Camel 2.9.2 onwards. As we rely on Nettys default settings.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maxPoolSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>100</code></p></td><td colspan ="1" rowspan="1" class="confluenceTd"><p>The maximum number of threads that may be allocated to this endpoint. Defaults to 100. <strong>Note:</strong> This option is removed from Camel 2.9.2 onwards. As we rely on Nettys default settings.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>disconnect</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Whether or not to disconnect(close) from Netty Channel right after use. Can be used for both consumer and producer.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>lazyChannelCreation</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Channels can be lazily created to avoid exceptions, if the remote server is not up and running when the Camel producer is started.</p></td></tr><tr><td colspan="1" rowspa n="1" class="confluenceTd"><p><code>transferExchange</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Only used for TCP. You can transfer the exchange over the wire instead of just the body. The following fields are transferred: In body, Out body, fault body, In headers, Out headers, fault headers, exchange properties, exchange exception. This requires that the objects are serializable. Camel will exclude any non-serializable objects and log it at WARN level.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>disconnectOnNoReply</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If sync is enabled then this option dictates NettyConsumer if it should disconnect where there is no reply to send back.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code> noReplyLogLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>WARN</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>If sync is enabled this option dictates NettyConsumer which logging level to use when logging a there is no reply to send back. Values are: <code>FATAL, ERROR, INFO, DEBUG, OFF</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>serverExceptionCaughtLogLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>WARN</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> If the server (NettyConsumer) catches an exception then its logged using this logging level.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>serverClosedChannelExceptionCaughtLogLevel</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>DEBUG</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> If the server (NettyConsumer) catches an <code>java.nio.channels.ClosedChannelException</code> then its logged using this logging level. This is used to avoid logging the closed channel exceptions, as clients can disconnect abruptly and then cause a flod of closed exceptions in the Netty server.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>allowDefaultCodec</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> The netty component installs a default codec if both, encoder/deocder is null and textline is false. Setting allowDefaultCodec to false prevents the netty component from installing a default codec as the first element in the filter chain.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>textline</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td ><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel >2.4:</strong> Only used for TCP. If no codec is specified, you can use this >flag to indicate a text line based codec; if not specified or the value is >false, then Object Serialization is assumed over TCP.</p></td></tr><tr><td >colspan="1" rowspan="1" >class="confluenceTd"><p><code>delimiter</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><code>LINE</code></p></td><td colspan="1" >rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> The delimiter >to use for the textline codec. Possible values are <code>LINE</code> and ><code>NULL</code>.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>decoderMaxLineLength</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><code>1024</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> >The max line length to use for the textline codec.</p></td></tr><tr><td >colspan="1" rowspan= "1" class="confluenceTd"><p><code>autoAppendDelimiter</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> Whether or not to auto append missing end delimiter when sending using the textline codec.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>encoding</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.4:</strong> The encoding (a charset name) to use for the textline codec. If not provided, Camel will use the JVM default Charset.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>workerCount</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> When netty works on nio mode, it uses defaul t workerCount parameter from Netty, which is cpu_core_threads*2. User can use this operation to override the default workerCount from Netty</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sslContextParameters</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> SSL configuration using an <code>org.apache.camel.util.jsse.SSLContextParameters</code> instance. See <a shape="rect" href="#Netty-UsingtheJSSEConfigurationUtility">Using the JSSE Configuration Utility</a>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>receiveBufferSizePredictor</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.9:</strong> Configures the buffer size predictor. See details at Jetty documentation and this <a shape="rect" class="e xternal-link" href="http://lists.jboss.org/pipermail/netty-users/2010-January/001958.html"; rel="nofollow">mail thread</a>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>requestTimeout</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>0</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> Allows to use a timeout for the Netty producer when calling a remote server. By default no timeout is in use. The value is in milli seconds, so eg <code>30000</code> is 30 seconds. The requestTimeout is using Netty's <span>ReadTimeoutHandler to trigger the timeout.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>needClientAuth</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>false</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11:</strong> Configures whether the server needs client authentication when using SSL. </p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>orderedThreadPoolExecutor</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.2:</strong> Whether to use ordered thread pool, to ensure events are processed orderly on the same channel. See details at the netty javadoc of <code>org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor</code> for more details.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>maximumPoolSize</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>16</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.2:</strong> The core pool size for the ordered thread pool, if its in use.</p><p><strong>Since Camel 2.14.1</strong>: This option is move the NettyComponent.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code >producerPoolEnabled</code></p></td><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>true</code></p></td><td colspan="1" rowspan="1" >class="confluenceTd"><p><strong>Camel 2.10.4/Camel 2.11:</strong> Producer >only. Whether producer pool is enabled or not. <strong>Important:</strong> Do >not turn this off, as the pooling is needed for handling concurrency and >reliable request/reply.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>producerPoolMaxActive</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><code>-1</code></p></td><td >colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel >2.10.3:</strong> Producer only. Sets the cap on the number of objects that >can be allocated by the pool (checked out to clients, or idle awaiting >checkout) at a given time. Use a negative value for no >limit.</p></td></tr><tr><td colspan="1" rowspan="1" >class="confluenceTd"><p><code>producerPoolMinIdle</code></p></td><td >colspan="1" rowspan="1" class ="confluenceTd"><p><code>0</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.3:</strong> Producer only. Sets the minimum number of instances allowed in the producer pool before the evictor thread (if active) spawns new objects.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>producerPoolMaxIdle</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>100</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.3:</strong> Producer only. Sets the cap on the number of "idle" instances in the pool.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>producerPoolMinEvictableIdle</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>300000</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.10.3:</strong> Producer only. Sets the minimum amount of time (value in millis) an object may sit idle in the pool before it is eligible for eviction by the idle object evictor.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>bootstrapConfiguration</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> Consumer only. Allows to configure the Netty ServerBootstrap options using a <code>org.apache.camel.component.netty.NettyServerBootstrapConfiguration</code> instance. This can be used to reuse the same configuration for multiple consumers, to align their configuration more easily.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>bossPoll</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> To use a explicit <code>org.jboss.netty.channel.socket.nio.BossPool</code> as the boss thread pool. For example to share a threa d pool with multiple consumers. By default each consumer has their own boss pool with 1 core thread.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>workerPool</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> To use a explicit <code>org.jboss.netty.channel.socket.nio.WorkerPool</code> as the worker thread pool. For example to share a thread pool with multiple consumers. By default each consumer has their own worker pool with 2 x cpu count core threads.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>networkInterface</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code>null</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.12:</strong> Consumer only. When using UDP then this option can be used to specify a network interface by its name, such as <code>eth0< /code> to join a multicast group.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>udpConnectionlessSending</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.15:</strong> Producer only.  This option supports connection less udp sending which is a real fire and forget. A connected udp send receive the PortUnreachableException if no one is listen on the receiving port.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>clientMode</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.15:</strong> Consumer only. If the <code>clientMode</code> is true, netty consumer will connect the address as a TCP client.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>useChannelBuffer</code></td><td colspan="1" rowspan="1" clas s="confluenceTd"><code>false</code></td><td colspan="1" rowspan="1" class="confluenceTd"><strong>Camel 2.16:</strong> Producer only. If the <code><span>useChannelBuffer</span></code> is true, netty producer will turn the message body into channelBuffer before sending it out.</td></tr></tbody></table></div></div><h3 id="Netty-RegistrybasedOptions">Registry based Options</h3><p>Codec Handlers and SSL Keystores can be enlisted in the <a shape="rect" href="registry.html">Registry</a>, such as in the Spring XML file.<br clear="none"> The values that could be passed in, are the following:</p><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Name</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>passphrase</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>password setting to us e in order to encrypt/decrypt payloads sent using SSH</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keyStoreFormat</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>keystore format to be used for payload encryption. Defaults to "JKS" if not set</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>securityProvider</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>Security provider to be used for payload encryption. Defaults to "SunX509" if not set.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keyStoreFile</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>deprecated:</strong> Client side certificate keystore to be used for encryption</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>trustStoreFile</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>deprecated:</strong> Server side certificate keystor e to be used for encryption</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>keyStoreResource</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> Client side certificate keystore to be used for encryption. Is loaded by default from classpath, but you can prefix with <code>"classpath:"</code>, <code>"file:"</code>, or <code>"http:"</code> to load the resource from different systems.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>trustStoreResource</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><strong>Camel 2.11.1:</strong> Server side certificate keystore to be used for encryption. Is loaded by default from classpath, but you can prefix with <code>"classpath:"</code>, <code>"file:"</code>, or <code>"http:"</code> to load the resource from different systems.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>sslHandler</code></p></td><td cols pan="1" rowspan="1" class="confluenceTd"><p>Reference to a class that could be used to return an SSL Handler</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>encoder</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>A custom <code>ChannelHandler</code> class that can be used to perform special marshalling of outbound payloads. Must override <code>org.jboss.netty.channel.ChannelDownStreamHandler</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>encorders</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>A list of encoders to be used. You can use a String which have values separated by comma, and have the values be looked up in the <a shape="rect" href="registry.html">Registry</a>. Just remember to prefix the value with # so Camel knows it should lookup.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>decoder</code></p></td><td colspan="1" rowspan="1" class="confluen ceTd"><p>A custom <code>ChannelHandler</code> class that can be used to perform special marshalling of inbound payloads. Must override <code>org.jboss.netty.channel.ChannelUpStreamHandler</code>.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>decoders</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p>A list of decoders to be used. You can use a String which have values separated by comma, and have the values be looked up in the <a shape="rect" href="registry.html">Registry</a>. Just remember to prefix the value with # so Camel knows it should lookup.</p></td></tr></tbody></table></div></div><p><strong>Important:</strong> Read below about using non shareable encoders/decoders.</p><h4 id="Netty-Usingnonshareableencodersordecoders">Using non shareable encoders or decoders</h4><p>If your encoders or decoders is not shareable (eg they have the @Shareable class annotation), then your encoder/decoder must implement the <code>org.apache.camel.com ponent.netty.ChannelHandlerFactory</code> interface, and return a new instance in the <code>newChannelHandler</code> method. This is to ensure the encoder/decoder can safely be used. If this is not the case, then the Netty component will log a WARN when<br clear="none"> an endpoint is created.</p><p>The Netty component offers a <code>org.apache.camel.component.netty.ChannelHandlerFactories</code> factory class, that has a number of commonly used methods.</p><h3 id="Netty-SendingMessagesto/fromaNettyendpoint">Sending Messages to/from a Netty endpoint</h3><h4 id="Netty-NettyProducer">Netty Producer</h4><p>In Producer mode, the component provides the ability to send payloads to a socket endpoint<br clear="none"> using either TCP or UDP protocols (with optional SSL support).</p><p>The producer mode supports both one-way and request-response based operations.</p><h4 id="Netty-NettyConsumer">Netty Consumer</h4><p>In Consumer mode, the component provides the ability to:</p><ul class="alter nate"><li>listen on a specified socket using either TCP or UDP protocols (with optional SSL support),</li><li>receive requests on the socket using text/xml, binary and serialized object based payloads and</li><li>send them along on a route as message exchanges.</li></ul><p>The consumer mode supports both one-way and request-response based operations.</p><p> </p><h3 id="Netty-Headers">Headers</h3><p>The following headers are filled for the exchanges created by the Netty consumer:</p><div class="confluenceTableSmall"><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Header key</p></th><th colspan="1" rowspan="1" class="confluenceTh">Class</th><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>NettyConstants.NETTY_CHANNEL_HANDLER_CONTEXT</code> / <code>CamelNettyChannelHandlerContext</code></p></td><td colspan="1" rowspan="1" c lass="confluenceTd"><code>org.jboss.netty.channel.ChannelHandlerContext</code></td><td colspan="1" rowspan="1" class="confluenceTd"><p><code><span>ChannelHandlerContext </span></code>instance associated with the connection received by netty.</p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>NettyConstants.NETTY_MESSAGE_EVENT</code> / <code>CamelNettyMessageEvent</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code><span>org.jboss.netty.channel.</span>MessageEvent</code></td><td colspan="1" rowspan="1" class="confluenceTd"><p><span><code><span>MessageEvent </span></code>instance associated with the connection received by netty.</span></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p><code>NettyConstants.NETTY_REMOTE_ADDRESS</code> / <code>CamelNettyRemoteAddress</code></p></td><td colspan="1" rowspan="1" class="confluenceTd"><code>java.net.SocketAddress</code></td><td colspan="1" rowspan="1" class="confluenceTd">Remote add ress of the incoming socket connection.</td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><code>NettyConstants.NETTY_LOCAL_ADDRESS</code> / <code>CamelNettyLocalAddress</code></td><td colspan="1" rowspan="1" class="confluenceTd"><code><span>java.net.</span><span>SocketAddress</span></code></td><td colspan="1" rowspan="1" class="confluenceTd"><span>Local address of the incoming socket connection.</span></td></tr></tbody></table></div></div><h3 id="Netty-UsageSamples">Usage Samples</h3><h4 id="Netty-AUDPNettyendpointusingRequest-Replyandserializedobjectpayload">A UDP Netty endpoint using Request-Reply and serialized object payload</h4><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl"> <script class="theme: Default; brush: java; gutter: false" type="syntaxhighlighter"><