LDAPTest.java

package test;

import java.util.Properties;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.*;

public class LDAPTest {

    public void run() {
        try {
            DirContext context = getContext();
            String name = "employeeNumber=00001,ou=system";
            createLDAPObject(context, name);
            createAttribute(context, name, "displayName", "JOBS");
            viewAttribute(context, name, "displayName");
            updateAttribute(context, name, "displayName", "STEVE");
            viewAttribute(context, name, "displayName");
            removeAttribute(context, name, "displayName");
            removeLDAPObject(context, name);
        } catch (NamingException e) {
            e.printStackTrace();
        }
    }

    private void getAllLDAPObject(DirContext context) throws NamingException {
        SearchControls controls = new SearchControls();
        controls.setSearchScope(SearchControls.SUBTREE_SCOPE);

        NamingEnumeration<SearchResult> results = context.search("ou=system",null);
        while (results.hasMore()) {
            SearchResult searchResult = (SearchResult) results.next();
            Attributes attributes = searchResult.getAttributes();
            System.out.println("atttibutes " + attributes);
        }
    }

    private void removeLDAPObject(DirContext context, String name) throws NamingException {
        context.destroySubcontext(name);
    }

    private void createLDAPObject(DirContext context, String name) throws NamingException {
        Attributes attributes = new BasicAttributes();

        Attribute attribute = new BasicAttribute("objectClass");
        attribute.add("inetOrgPerson");
        attributes.put(attribute);

        Attribute sn = new BasicAttribute("sn");
        sn.add("Steve");
        attributes.put(sn);

        Attribute cn = new BasicAttribute("cn");
        cn.add("Jobs");
        attributes.put(cn);

        attributes.put("telephoneNumber", "123456");
        context.createSubcontext(name, attributes);
    }

    private void removeAttribute(DirContext context, String name , String attrName) throws NamingException {
        Attribute attribute = new BasicAttribute(attrName);
        ModificationItem[] item = new ModificationItem[1];
        item[0] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE, attribute);
        context.modifyAttributes(name, item);
    }

    private void createAttribute(DirContext context, String name , String attrName, Object attrValue) throws NamingException {
        Attribute attribute = new BasicAttribute(attrName, attrValue);
        ModificationItem[] item = new ModificationItem[1];
        item[0] = new ModificationItem(DirContext.ADD_ATTRIBUTE, attribute);
        context.modifyAttributes(name, item);
    }

    private void updateAttribute(DirContext context, String name , String attrName, Object attrValue) throws NamingException {
        Attribute attribute = new BasicAttribute(attrName, attrValue);
        ModificationItem[] item = new ModificationItem[1];
        item[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, attribute);
        context.modifyAttributes(name, item);
    }

    private void viewAttribute(DirContext context, String name , String attrName) throws NamingException {
        Attributes attrs = context.getAttributes(name);
        System.out.println(attrName + ":" + attrs.get(attrName).get());
    }

    private DirContext getContext() throws NamingException {
        Properties properties = new Properties();
        properties.put(Context.INITIAL_CONTEXT_FACTORY,
                "com.sun.jndi.ldap.LdapCtxFactory");
        properties.put(Context.PROVIDER_URL, "ldap://localhost:10389");

        return new InitialDirContext(properties);
    }

    public static void main(String[] args) {
        new LDAPTest().run();
    }
}