Spring Security 3 using LDAP... Now to CAS login

I had a project that as using Spring Security 3 using LDAP but now my firm is looking into using CAS. I been working on this for a few weeks and got nothing go. My CAS server is at https://dvjvm11.uftwf.dev:8443/cas-server-webapp/ and I would like to know if anyone can show me the changes to make in the following XML to go from LDAP to CAS. please help out.

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns:beans="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
        xmlns:jee="http://www.springframework.org/schema/jee"

        xsi:schemaLocation="http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
              http://www.springframework.org/schema/jdbc
                  http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd
              http://www.springframework.org/schema/security
              http://www.springframework.org/schema/security/spring-security-3.1.xsd
              http://www.springframework.org/schema/jee
              http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
              "
        xmlns="http://www.springframework.org/schema/security">

        <http auto-config="true" use-expressions="true">

                <intercept-url access="hasRole('ROLE_MEMBER_INQUIRY')"
                        pattern="/requests/**" />

                <form-login default-target-url="/requests/add.html" />

        </http>

        <authentication-manager>

                <ldap-authentication-provider
                        user-search-base="ou=webusers" user-search-filter="(uid={0})">

                        <password-compare>

                                <password-encoder ref="passwordEncoder">
                                </password-encoder>
                        </password-compare>
                </ldap-authentication-provider>
        </authentication-manager>

        <beans:bean id="passwordEncoder"
                class="org.springframework.security.authentication.encoding.Md5PasswordEncoder">
        </beans:bean>

        <beans:bean id="contextSource"
                class="org.springframework.security.ldap.DefaultSpringSecurityContextSource">

                <beans:constructor-arg
                        value="ldaps://dvldap01.uftwf.dev:636/dc=uftwf,dc=dev" />

                <beans:property name="userDn" value="cn=Manager,dc=uftwf,dc=dev" />

                <beans:property name="password" value="uftwf" />
        </beans:bean>

        <beans:bean id="ldapAuthProvider"
                class="org.springframework.security.ldap.authentication.LdapAuthenticationProvider">

                <beans:constructor-arg>

                        <beans:bean
                                class="org.springframework.security.ldap.authentication.BindAuthenticator">
                                <beans:constructor-arg ref="contextSource" />
                                <beans:property name="userDnPatterns">
                                        <beans:list>
                                                <beans:value>
                                                        uid={0},ou=webusers
                                                </beans:value>
                                        </beans:list>
                                </beans:property>
                        </beans:bean>
                </beans:constructor-arg>
                <beans:constructor-arg>
                        <beans:bean
                                class="org.springframework.security.ldap.userdetails.DefaultLdapAuthoritiesPopulator">
                                <beans:constructor-arg ref="contextSource" />
                                <beans:constructor-arg value="ou=groups" />
                                <beans:property name="groupRoleAttribute" value="ou" />
                        </beans:bean>
                </beans:constructor-arg>
        </beans:bean>
        <ldap-server url="ldaps://dvldap01.uftwf.dev:636/dc=uftwf,dc=dev" />
        <beans:bean id="propertyConfigurer"
                class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
                <beans:property name="location" value="classpath:jdbc.properties2" />
        </beans:bean>

        <beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
                <beans:property name="driverClassName" value="${database.driver}" />
                <beans:property name="url" value="${database.url}" />
                <beans:property name="username" value="${database.user}" />
                <beans:property name="password" value="${database.password}" />
                <beans:property name="initialSize" value="5" />
                <beans:property name="maxActive" value="10" />
        </beans:bean>

</beans:beans>

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