Chapter 151. HTTP4 Component

httpUri

Required The url of the HTTP endpoint to call.

URI

disableStreamCache (common)

Determines whether or not the raw input stream from Servlet is cached or not (Camel will read the stream into a in memory/overflow to file, Stream caching) cache. By default Camel will cache the Servlet 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. DefaultHttpBinding will copy the request input stream into a stream cache and put it into message body if this option is false to support reading the stream multiple times. If you use Servlet to bridge/proxy an endpoint then consider enabling this option to improve performance, in case you do not need to read the message payload multiple times. The http/http4 producer will by default cache the response body stream. If setting this option to true, then the producers will not cache the response body stream but use the response stream as-is as the message body.

false

boolean

headerFilterStrategy (common)

To use a custom HeaderFilterStrategy to filter header to and from Camel message.

HeaderFilterStrategy

httpBinding (common)

To use a custom HttpBinding to control the mapping between Camel message and HttpClient.

HttpBinding

authenticationPreemptive (producer)

If this option is true, camel-http4 sends preemptive basic authentication to the server.

false

boolean

bridgeEndpoint (producer)

If the option is true, HttpProducer will ignore the Exchange.HTTP_URI header, and use the endpoint’s URI for request. You may also set the option throwExceptionOnFailure to be false to let the HttpProducer send all the fault response back.

false

boolean

chunked (producer)

If this option is false the Servlet will disable the HTTP streaming and set the content-length header on the response

true

boolean

clearExpiredCookies (producer)

Whether to clear expired cookies before sending the HTTP request. This ensures the cookies store does not keep growing by adding new cookies which is newer removed when they are expired.

true

boolean

connectionClose (producer)

Specifies whether a Connection Close header must be added to HTTP Request. By default connectionClose is false.

false

boolean

cookieStore (producer)

To use a custom CookieStore. By default the BasicCookieStore is used which is an in-memory only cookie store. Notice if bridgeEndpoint=true then the cookie store is forced to be a noop cookie store as cookie shouldn’t be stored as we are just bridging (eg acting as a proxy). If a cookieHandler is set then the cookie store is also forced to be a noop cookie store as cookie handling is then performed by the cookieHandler.

CookieStore

copyHeaders (producer)

If this option is true then IN exchange headers will be copied to OUT exchange headers according to copy strategy. Setting this to false, allows to only include the headers from the HTTP response (not propagating IN headers).

true

boolean

deleteWithBody (producer)

Whether the HTTP DELETE should include the message body or not. By default HTTP DELETE do not include any HTTP message. However in some rare cases users may need to be able to include the message body.

false

boolean

httpMethod (producer)

Configure the HTTP method to use. The HttpMethod header cannot override this option if set.

HttpMethods

ignoreResponseBody (producer)

If this option is true, The http producer won’t read response body and cache the input stream

false

boolean

preserveHostHeader (producer)

If the option is true, HttpProducer will set the Host header to the value contained in the current exchange Host header, useful in reverse proxy applications where you want the Host header received by the downstream server to reflect the URL called by the upstream client, this allows applications which use the Host header to generate accurate URL’s for a proxied service

false

boolean

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

transferException (producer)

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

cookieHandler (producer)

Configure a cookie handler to maintain a HTTP session

CookieHandler

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.

200-299

String

urlRewrite (producer)

Deprecated Refers to a custom org.apache.camel.component.http.UrlRewrite which allows you to rewrite urls when you bridge/proxy endpoints. See more details at http://camel.apache.org/urlrewrite.html

UrlRewrite

clientBuilder (advanced)

Provide access to the http client request parameters used on new RequestConfig instances used by producers or consumers of this endpoint.

HttpClientBuilder

clientConnectionManager (advanced)

To use a custom HttpClientConnectionManager to manage connections

HttpClientConnection Manager

connectionsPerRoute (advanced)

The maximum number of connections per route.

20

int

httpClient (advanced)

Sets a custom HttpClient to be used by the producer

HttpClient

httpClientConfigurer (advanced)

Register a custom configuration strategy for new HttpClient instances created by producers or consumers such as to configure authentication mechanisms etc

HttpClientConfigurer

httpClientOptions (advanced)

To configure the HttpClient using the key/values from the Map.

Map

httpContext (advanced)

To use a custom HttpContext instance

HttpContext

mapHttpMessageBody (advanced)

If this option is true then IN exchange Body of the exchange will be mapped to HTTP body. Setting this to false will avoid the HTTP mapping.

true

boolean

mapHttpMessageFormUrl EncodedBody (advanced)

If this option is true then IN exchange Form Encoded body of the exchange will be mapped to HTTP. Setting this to false will avoid the HTTP Form Encoded body mapping.

true

boolean

mapHttpMessageHeaders (advanced)

If this option is true then IN exchange Headers of the exchange will be mapped to HTTP headers. Setting this to false will avoid the HTTP Headers mapping.

true

boolean

maxTotalConnections (advanced)

The maximum number of connections.

200

int

synchronous (advanced)

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

false

boolean

useSystemProperties (advanced)

To use System Properties as fallback for configuration

false

boolean

proxyAuthDomain (proxy)

Proxy authentication domain to use with NTML

String

proxyAuthHost (proxy)

Proxy authentication host

String

proxyAuthMethod (proxy)

Proxy authentication method to use

String

proxyAuthPassword (proxy)

Proxy authentication password

String

proxyAuthPort (proxy)

Proxy authentication port

int

proxyAuthScheme (proxy)

Proxy authentication scheme to use

String

proxyAuthUsername (proxy)

Proxy authentication username

String

proxyHost (proxy)

Proxy hostname to use

String

proxyPort (proxy)

Proxy port to use

int

authDomain (security)

Authentication domain to use with NTML

String

authHost (security)

Authentication host to use with NTML

String

authMethod (security)

Authentication methods allowed to use as a comma separated list of values Basic, Digest or NTLM.

String

authMethodPriority (security)

Which authentication method to prioritize to use, either as Basic, Digest or NTLM.

String

authPassword (security)

Authentication password

String

authUsername (security)

Authentication username

String

sslContextParameters (security)

To configure security using SSLContextParameters. Important: Only one instance of org.apache.camel.util.jsse.SSLContextParameters is supported per HttpComponent. If you need to use 2 or more different instances, you need to define a new HttpComponent per instance you need.

SSLContextParameters

x509HostnameVerifier (security)

To use a custom X509HostnameVerifier such as DefaultHostnameVerifier or org.apache.http.conn.ssl.NoopHostnameVerifier.

HostnameVerifier