org.milyn.cdr
Class ProfileTargetingExpression.ExpressionToken

java.lang.Object
  org.milyn.cdr.ProfileTargetingExpression.ExpressionToken

Enclosing class:

ProfileTargetingExpression

public class ProfileTargetingExpression.ExpressionToken
extends Object

Profile targeting expression token.

Author:

tfennelly

Method Summary

double	getSpecificity(ProfileSet profileSet) Get the specificity of this token with respect to the supplied device.
String	getToken() Get the token value (profile).
boolean	isMatch(ProfileSet profileSet) Is the profile specified in this token is a member of the supplied profile set.
boolean	isNegated() Is this token negated.
boolean	isWildcard() Is the token a wildcard token.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getToken

public String getToken()

Get the token value (profile).

Returns:

The profile specified in this token.

isNegated

public boolean isNegated()

Is this token negated.

Is the token prefixed with "not:".

Returns:

True if the token is negated, otherwise false.

isWildcard

public boolean isWildcard()

Is the token a wildcard token.

Is the token equal to "*".

Returns:

True if the token is a wildcard token, otherwise false.

isMatch

public boolean isMatch(ProfileSet profileSet)

Is the profile specified in this token is a member of the supplied profile set.

Parameters:

profileSet - Profile set.

Returns:

True if the profile specified in this token is a member of the supplied profile set, otherwise false.

getSpecificity

public double getSpecificity(ProfileSet profileSet)

Get the specificity of this token with respect to the supplied device.

The following outlines the algorithm:

     if(isNegated()) {
         if(profileSet.getBaseProfile().equals(expressionToken)) {
             return 0;
         } else if(profileSet.isMember(expressionToken)) {
             return 0;
         } else if(isWildcard()) {
             return 0;
         }
         return 1;
     } else {
         // Is the "expressionToken" referencing the base profile, a sub-profile,
         // or is it a wildcard token.
         Profile profile = profileSet.getProfile(expressionToken);

         if(profileSet.getBaseProfile().equalsIgnoreCase(expressionToken)) {
             return 100;
         } else if(profile != null) {
             // If it's a HTTP "Accept" header media profile, multiple
             // the specificity by the media qvalue.  See the
             // HttpAcceptHeaderProfile javadocs.
             if(profile instanceof HttpAcceptHeaderProfile) {
                 return (10 * ((HttpAcceptHeaderProfile)profile).getParamNumeric("q", 1));
             } else {
                 return 10;
             }
         } else if(isWildcard()) {
             return 5;
         }
         return 0;
     }
 

Parameters:

profileSet - Profile set.

Returns:

Specificity value for the token.

toString

public String toString()

Overrides:

toString in class Object