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Classes and Methods

SIP Servlets 2-11

Example 2–3 Accessing Parameters in SipURI

// Create a SipURI, set the port, the lr, and the transport

// protocol parameter

SipURI myURI;

myURI = sipFactory.createSipURI("bob", "10.0.0.10");

myURI.setPort(5072);

myURI.setLrParam(true);

myURI.setTransportParam("udp");

Address

SIP addresses found in headers, such as the From, To, and Contact headers, are stored

as javax.servlet.sip Address objects. As shown in

Example 2–4, the object

holds, beside the URI, an optional display name and a set of name-value parameters.

Example 2–4 SIP Addresses Stored in java.servlet.sip Address Objects

Address contactAddress;

String displayName;

try

{

// Get the contact address

contactAdress = req.getAddressHeader("Contact");

displayName = contactAdress.getDisplayName();

}

catch (ServletParseException spe)

{

// Handle exception

}

// Create a new address

Address myNewAddress;

myNewAddress = sipFactory.createAddress(URI, "Bob's display name");

myNewAddress.setParameter("myparameter","42");

The content of myNewAddress in the preceding example is as follows:

DisplayName: "Bob’s display name"

URI: <sip:[email protected];lr>;

parameter myparameter: 42

The Address class offers the following methods:

■ getDisplayName()

■ setDisplayName()

■ getURI()

■ setURI()

■ clone()

■ toString()

SIP Details

When working with the SIP Servlet API, many SIP details are hidden and performed

automatically by the OCMS SIP Application Server.

■ When the transport protocol is UDP, retransmissions are handled automatically.

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