CRUD data in LDAP with spring v3.x

• Environment:

JDK 1.6.x
Oralce Identity Directory 11g
Spring 3.x --add the following ldap-related jar files in spring to your project
spring-ldap-core-tiger-1.3.0.RELEASE.jar
spring-ldap-1.3.0.RELEASE-all.jar
commons-lang-1.6.2.jar
commons-logging-1.0.4.jar
commons-logging-api-1.1.jar
org.springframework.beans-3.0.2.RELEASE.jar
org.springframework.core-3.0.2.RELEASE.jar
org.springframework.transaction-3.0.2.RELEASE.jar

•  spring configuraiton

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
    <bean id="contextSource" class="org.springframework.ldap.core.support.LdapContextSource">
        <property name="url" value="ldap://<server>:<port>" />
        <property name="base" value="<base DN>" />
        <property name="userDn" value="<user DN>" />
        <property name="password" value="<password>" />
    </bean>
    <bean id="ldapTemplate" class="org.springframework.ldap.core.LdapTemplate">
        <constructor-arg ref="contextSource" />
    </bean>
    <bean id="ldapUserDao" class="com.ldap.dao.SsoUserDaoImpl">
        <property name="ldapTemplate" ref="ldapTemplate" />
    </bean>
</beans>

• Code

// create user
    public void create(SsoUser user) {
        try {
            Attributes attrs = buildAttributes(user);
            ldapTemplate.bind(buildDn(user), null, attrs);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private Attributes buildAttributes(SsoUser user) {
        Attributes attrs = new BasicAttributes();
        BasicAttribute obj = new BasicAttribute("objectclass");
        obj.add("top");
        obj.add("person");
        obj.add("cssoUser");
        attrs.put(obj);
        attrs.put("mail", user.getEmail());
        attrs.put("employeenumber", user.getCustId());
        attrs.put("cn", user.getUserId());
        attrs.put("uid", user.getUserId());
        attrs.put("sn", user.getUserId());
        return attrs;
    }

    private String buildDn(SsoUser user) {
        return "cn=" + user.getUserId();
    }

// search user
    @Override
    public List<SsoUser> getAllUsers() {
        return ldapTemplate.search("", "(objectclass=cssoUser)",
                new SsoUserAttributeMapper());

    }

private class SsoUserAttributeMapper implements AttributesMapper {

        @Override
        public Object mapFromAttributes(Attributes attrs)
                throws NamingException {
            SsoUser user = new SsoUser();
            user.setUserId((String) attrs.get("cn").get());
            user.setCustId((String) attrs.get("employeenumber").get());
            user.setEmail((String) attrs.get("mail").get());
            return user;
        }

    }

// update user

    @Override
    public void update(SsoUser user) {
        try {
            Attributes attrs = buildAttributes(user);
            ldapTemplate.rebind(buildDn(user), null, attrs);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }