Chapter 241. Netty HTTP Component (deprecated)

protocol

Required The protocol to use which is either http or https

String

host

Required The local hostname such as localhost, or 0.0.0.0 when being a consumer. The remote HTTP server hostname when using producer.

String

port

The host port number

int

path

Resource path

String

bridgeEndpoint (common)

If the option is true, the producer will ignore the Exchange.HTTP_URI header, and use the endpoint’s URI for request. You may also set the throwExceptionOnFailure to be false to let the producer send all the fault response back. The consumer working in the bridge mode will skip the gzip compression and WWW URL form encoding (by adding the Exchange.SKIP_GZIP_ENCODING and Exchange.SKIP_WWW_FORM_URLENCODED headers to the consumed exchange).

false

boolean

disconnect (common)

Whether or not to disconnect(close) from Netty Channel right after use. Can be used for both consumer and producer.

false

boolean

keepAlive (common)

Setting to ensure socket is not closed due to inactivity

true

boolean

reuseAddress (common)

Setting to facilitate socket multiplexing

true

boolean

sync (common)

Setting to set endpoint as one-way or request-response

true

boolean

tcpNoDelay (common)

Setting to improve TCP protocol performance

true

boolean

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

matchOnUriPrefix (consumer)

Whether or not Camel should try to find a target consumer by matching the URI prefix if no exact match is found.

false

boolean

send503whenSuspended (consumer)

Whether to send back HTTP status code 503 when the consumer has been suspended. If the option is false then the Netty Acceptor is unbound when the consumer is suspended, so clients cannot connect anymore.

true

boolean

backlog (consumer)

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 200, 500 or 1000, tells the TCP stack how long the accept queue can be If this option is not configured, then the backlog depends on OS setting.

int

bossCount (consumer)

When netty works on nio mode, it uses default bossCount parameter from Netty, which is 1. User can use this operation to override the default bossCount from Netty

1

int

bossPool (consumer)

To use a explicit org.jboss.netty.channel.socket.nio.BossPool 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.

BossPool

channelGroup (consumer)

To use a explicit ChannelGroup.

ChannelGroup

chunkedMaxContentLength (consumer)

Value in bytes the max content length per chunked frame received on the Netty HTTP server.

1048576

int

compression (consumer)

Allow using gzip/deflate for compression on the Netty HTTP server if the client supports it from the HTTP headers.

false

boolean

disableStreamCache (consumer)

Determines whether or not the raw input stream from Netty HttpRequest#getContent() is cached or not (Camel will read the stream into a in light-weight memory based Stream caching) cache. By default Camel will cache the Netty input stream to support reading it multiple times to ensure it Camel can retrieve all data from the stream. However you can set this option to true when you for example need to access the raw stream, such as streaming it directly to a file or other persistent store. Mind that if you enable this option, then you cannot read the Netty stream multiple times out of the box, and you would need manually to reset the reader index on the Netty raw stream.

false

boolean

disconnectOnNoReply (consumer)

If sync is enabled then this option dictates NettyConsumer if it should disconnect where there is no reply to send back.

true

boolean

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange.

ExchangePattern

httpMethodRestrict (consumer)

To disable HTTP methods on the Netty HTTP consumer. You can specify multiple separated by comma.

String

mapHeaders (consumer)

If this option is enabled, then during binding from Netty to Camel Message then the headers will be mapped as well (eg added as header to the Camel Message as well). You can turn off this option to disable this. The headers can still be accessed from the org.apache.camel.component.netty.http.NettyHttpMessage message with the method getHttpRequest() that returns the Netty HTTP request org.jboss.netty.handler.codec.http.HttpRequest instance.

true

boolean

maxChannelMemorySize (consumer)

The maximum total size of the queued events per channel when using orderedThreadPoolExecutor. Specify 0 to disable.

10485760

long

maxHeaderSize (consumer)

The maximum length of all headers. If the sum of the length of each header exceeds this value, a TooLongFrameException will be raised.

8192

int

maxTotalMemorySize (consumer)

The maximum total size of the queued events for this pool when using orderedThreadPoolExecutor. Specify 0 to disable.

209715200

long

nettyServerBootstrapFactory (consumer)

To use a custom NettyServerBootstrapFactory

NettyServerBootstrap Factory

nettySharedHttpServer (consumer)

To use a shared Netty HTTP server. See Netty HTTP Server Example for more details.

NettySharedHttpServer

noReplyLogLevel (consumer)

If sync is enabled this option dictates NettyConsumer which logging level to use when logging a there is no reply to send back.

WARN

LoggingLevel

orderedThreadPoolExecutor (consumer)

Whether to use ordered thread pool, to ensure events are processed orderly on the same channel. See details at the netty javadoc of org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor for more details.

true

boolean

serverClosedChannel ExceptionCaughtLogLevel (consumer)

If the server (NettyConsumer) catches an java.nio.channels.ClosedChannelException 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 flood of closed exceptions in the Netty server.

DEBUG

LoggingLevel

serverExceptionCaughtLog Level (consumer)

If the server (NettyConsumer) catches an exception then its logged using this logging level.

WARN

LoggingLevel

serverPipelineFactory (consumer)

To use a custom ServerPipelineFactory

ServerPipelineFactory

traceEnabled (consumer)

Specifies whether to enable HTTP TRACE for this Netty HTTP consumer. By default TRACE is turned off.

false

boolean

urlDecodeHeaders (consumer)

If this option is enabled, then during binding from Netty to Camel Message then the header values will be URL decoded (eg %20 will be a space character. Notice this option is used by the default org.apache.camel.component.netty.http.NettyHttpBinding and therefore if you implement a custom org.apache.camel.component.netty.http.NettyHttpBinding then you would need to decode the headers accordingly to this option.

false

boolean

workerCount (consumer)

When netty works on nio mode, it uses default workerCount parameter from Netty, which is cpu_core_threads2. User can use this operation to override the default workerCount from Netty

int

workerPool (consumer)

To use a explicit org.jboss.netty.channel.socket.nio.WorkerPool 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.

WorkerPool

connectTimeout (producer)

Time to wait for a socket connection to be available. Value is in millis.

10000

long

requestTimeout (producer)

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 30000 is 30 seconds. The requestTimeout is using Netty’s ReadTimeoutHandler to trigger the timeout.

long

throwExceptionOnFailure (producer)

Option to disable throwing the HttpOperationFailedException in case of failed responses from the remote server. This allows you to get all responses regardless of the HTTP status code.

true

boolean

clientPipelineFactory (producer)

To use a custom ClientPipelineFactory

ClientPipelineFactory

lazyChannelCreation (producer)

Channels can be lazily created to avoid exceptions, if the remote server is not up and running when the Camel producer is started.

true

boolean

okStatusCodeRange (producer)

The status codes which are considered a success response. The values are inclusive. Multiple ranges can be defined, separated by comma, e.g. 200-204,209,301-304. Each range must be a single number or from-to with the dash included. The default range is 200-299

200-299

String

producerPoolEnabled (producer)

Whether producer pool is enabled or not. Important: Do not turn this off, as the pooling is needed for handling concurrency and reliable request/reply.

true

boolean

producerPoolMaxActive (producer)

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.

-1

int

producerPoolMaxIdle (producer)

Sets the cap on the number of idle instances in the pool.

100

int

producerPoolMinEvictable Idle (producer)

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.

300000

long

producerPoolMinIdle (producer)

Sets the minimum number of instances allowed in the producer pool before the evictor thread (if active) spawns new objects.

int

useChannelBuffer (producer)

If the useChannelBuffer is true, netty producer will turn the message body into ChannelBuffer before sending it out.

false

boolean

useRelativePath (producer)

Sets whether to use a relative path in HTTP requests. Some third party backend systems such as IBM Datapower do not support absolute URIs in HTTP POSTs, and setting this option to true can work around this problem.

false

boolean

bootstrapConfiguration (advanced)

To use a custom configured NettyServerBootstrapConfiguration for configuring this endpoint.

NettyServerBootstrap Configuration

configuration (advanced)

To use a custom configured NettyHttpConfiguration for configuring this endpoint.

NettyHttpConfiguration

headerFilterStrategy (advanced)

To use a custom org.apache.camel.spi.HeaderFilterStrategy to filter headers.

HeaderFilterStrategy

nettyHttpBinding (advanced)

To use a custom org.apache.camel.component.netty.http.NettyHttpBinding for binding to/from Netty and Camel Message API.

NettyHttpBinding

options (advanced)

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.

Map

receiveBufferSize (advanced)

The TCP/UDP buffer sizes to be used during inbound communication. Size is bytes.

65536

long

receiveBufferSizePredictor (advanced)

Configures the buffer size predictor. See details at Jetty documentation and this mail thread.

int

sendBufferSize (advanced)

The TCP/UDP buffer sizes to be used during outbound communication. Size is bytes.

65536

long

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

transferException (advanced)

If enabled and an Exchange failed processing on the consumer side, and if the caused Exception was send back serialized in the response as a application/x-java-serialized-object content type. On the producer side the exception will be deserialized and thrown as is, instead of the HttpOperationFailedException. The caused exception is required to be serialized. This is by default turned off. If you enable this then be aware that Java will deserialize the incoming data from the request to Java and that can be a potential security risk.

false

boolean

transferExchange (advanced)

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.

false

boolean

decoder (codec)

Deprecated To use a single decoder. This options is deprecated use encoders instead.

ChannelHandler

decoders (codec)

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 Registry. Just remember to prefix the value with # so Camel knows it should lookup.

String

encoder (codec)

Deprecated To use a single encoder. This options is deprecated use encoders instead.

ChannelHandler

encoders (codec)

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 Registry. Just remember to prefix the value with # so Camel knows it should lookup.

String

enabledProtocols (security)

Which protocols to enable when using SSL

TLSv1,TLSv1.1,TLSv1.2

String

keyStoreFile (security)

Client side certificate keystore to be used for encryption

File

keyStoreFormat (security)

Keystore format to be used for payload encryption. Defaults to JKS if not set

JKS

String

keyStoreResource (security)

Client side certificate keystore to be used for encryption. Is loaded by default from classpath, but you can prefix with classpath:, file:, or http: to load the resource from different systems.

String

needClientAuth (security)

Configures whether the server needs client authentication when using SSL.

false

boolean

passphrase (security)

Password setting to use in order to encrypt/decrypt payloads sent using SSH

String

securityConfiguration (security)

Refers to a org.apache.camel.component.netty.http.NettyHttpSecurityConfiguration for configuring secure web resources.

NettyHttpSecurity Configuration

securityOptions (security)

To configure NettyHttpSecurityConfiguration using key/value pairs from the map

Map

securityProvider (security)

Security provider to be used for payload encryption. Defaults to SunX509 if not set.

SunX509

String

ssl (security)

Setting to specify whether SSL encryption is applied to this endpoint

false

boolean

sslClientCertHeaders (security)

When enabled and in SSL mode, then the Netty consumer will enrich the Camel Message with headers having information about the client certificate such as subject name, issuer name, serial number, and the valid date range.

false

boolean

sslContextParameters (security)

To configure security using SSLContextParameters

SSLContextParameters

sslHandler (security)

Reference to a class that could be used to return an SSL Handler

SslHandler

trustStoreFile (security)

Server side certificate keystore to be used for encryption

File

trustStoreResource (security)

Server side certificate keystore to be used for encryption. Is loaded by default from classpath, but you can prefix with classpath:, file:, or http: to load the resource from different systems.

String