Hot Rod URI

Traditionally, the Java Hot Rod client has always been configured either via a properties file or through a programmatic builder API.

While both approaches offer a great amount of flexibility, they always felt a bit too complex for straightforward scenarios.

Starting with Infinispan 11 you will be able to specify the connection to an Infinispan Server via a URI, just like you’d connect to a database via a JDBC driver URL.

The Hot Rod URI allows you to specify the addresses of the server cluster, authentication parameters and any other property in a simple compact String format.

The URI specification is:

hotrod[s]://[username:password]@host[:port][,host[:port]…​][?property=value[&property=value…​]]

  • the protocol can be either hotrod (plain, unencrypted) or hotrods (TLS/SSL, encrypted)

  • if username and password are specified, they will be used to authenticate with the server

  • one or more addresses. If a port is not specified, the default 11222 will be used

  • zero or more properties, without the infinispan.client.hotrod prefix, through which you can configure all other aspects such as connection pooling, authentication mechanisms, near caching, etc.

Here are some examples:

hotrod://localhost

simple connection to a server running on localhost using the default port

hotrod://joe:secret@infinispan-host-1:11222,infinispan-host-2:11222

authenticated connection to infinispan-host-1 and infinispan-host-2 with explicit port

hotrods://infinispan-host-1?socket_timeout=1000&connect_timeout=2000

TLS/SSL connection to infinispan-host-1 using the default port and with custom connection and socket timeouts

The URI format can also be used as a starting point in your usual properties file or API configuration and further enriched using the traditional methods:

infinispan.client.hotrod.uri=hotrod://joe:secret@infinispan-host-1:11222,infinispan-host-2:11222
infinispan.client.hotrod.connect_timeout=100
infinispan.client.hotrod.socket_timeout=100
infinispan.client.hotrod.tcp_keep_alive=true
ConfigurationBuilder builder = new ConfigurationBuilder()
    .uri("hotrod://joe:secret@infinispan-host-1:11222,infinispan-host-2:11222")
    .socketTimeout(100)
    .connectionTimeout(100)
    tcpKeepAlive(true);

We hope this makes configuration simpler.

Happy coding!

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Posted by Tristan Tarrant on 2020-05-26
Tags: documentation
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